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Pulse Or Digital Communications > Receivers ReceiversReceivers patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/01/07 - 20070253511 - Method and apparatus for improving signal reception in a receiver A method and apparatus for improving signal reception in a receiver (100) by performing all-channel and/or on-channel estimations on a received signal so as to predict future RF environments. The prediction is achieved through the use of one or more detector systems (122, 124) positioned to sample and detect predetermined ... 10/18/07 - 20070242777 - Digital amplifier and television receiving apparatus A digital amplifier including a clock generation unit configured to output a clock signal, a pulse width modulation unit configured to pulse width-modulate the clock signal based on an input signal, a driving unit configured to alternately drive at least two switching elements which convert the output of the pulse ... 10/18/07 - 20070242776 - Acquisition method for global positioning system A Global Positioning System (GPS) acquisition method is provided. A GPS signal is first received, comprising a plurality of data bits, each repeating for a bit period. A search space is then formed, comprising a plurality of elements each associated with a presumed offset and a presumed code phase. Before ... 10/11/07 - 20070237262 - Apparatus and method for transmitting/receiving a pilot sequence in a mobile communication system using space-time trellis code A mobile communication system includes M transmission antennas, P encoders for receiving P information bit streams and encoding the received information bit streams with a space-time trellis code (STTC), and M modulators for modulating information bit streams output from the P encoders in a predetermined modulation scheme and outputting modulation ... 10/11/07 - 20070237261 - Apparatus and method for efficient inter radio access technology operation An apparatus, and a method performed by the apparatus, including a terminal with a front end receiver and analog filter (AF) operable throughout a bandwidth that is large enough to cover the total bandwidth used by different access technologies that the terminal supports. The terminal is operable to simultaneously extract ... 10/04/07 - 20070230621 - Digital gaussian noise simulator In some embodiments, a segment is defined based on α and i. The segment is divided into points based on respective values of j, and the magnitude is calculated for each point of the segment. The defining and dividing segments and calculating the magnitude is iteratively repeated for each value ... // - 2 - ... // - 1 - ... // - 1 - ... // - 1 - ... // - 1 - ... // - 1 - ... // - 2 - ... // - 1 - ... // - 1 - ... // - 2 - ... // - 2 - ... 09/27/07 - 20070223626 - Dynamic analog power management in mobile station receivers Methods and systems for communicating in a wireless network include adjusting power consumption of an analog portion of a receiver in a mobile device based on the needs of the mobile device. In one example, either the gain or noise figure of the low noise amplifier (LNA) in the receiver ... 09/20/07 - 20070217547 - Receiver It is an object of the present invention to provide a receiver which, when receiving a digital broadcast, can shorten a time necessary for performing an initial synchronization. The receiver comprises: a front end which receives an OFDM-modulated digital broadcast and outputs modulation signals Sch1 and of at least two ... 09/13/07 - 20070211827 - Channel estimation in an ofdm system with high doppler shift A method of signal processing and a signal processor for a receiver for OFDM encoded digital signals. The OFDM encoded digital signals are transmitted as data symbol sub-carriers in several frequency channels. A subset of said sub carriers is in the form of pilot sub-carriers having a value known to ... 09/06/07 - 20070206705 - Rfid reader with adjustable filtering and adaptive backscatter processing A Radio Frequency Identification (RFID) reader in one embodiment of the invention includes an amplifier for amplifying an incoming RF signal, a switchable filter receiving an amplified signal from the amplifier, and mixers receiving a filtered signal from the filter. An RFID reader in another embodiment of the invention includes ... 09/06/07 - 20070206704 - Rfid reader with adaptive carrier cancellation An RFID reader includes first and second mixers receiving an incoming signal, circuitry for adding a portion of an outgoing signal to an incoming signal, first and second analog feedback loops coupling outputs of the first and second mixers to the circuitry for adding the outgoing signal to the incoming ... 08/16/07 - 20070189418 - Demodulator and optical disk device having the same A demodulator reads a slice signal input to a slice signal input terminal, and demodulates a data word from a code word to output the demodulated data word to a data word output terminal. The demodulator includes a main demodulation table which, when a code word not violating a minimum ... 08/09/07 - 20070183535 - Sampling method for a spread spectrum communication system Method for decoding a signal sent over a bandwidth-expanding communication system, where both channel estimation and signal detection are carried out on a set of samples generated by sampling the received signal at a sub-Nyquist rate, thus allowing for a significant reduction of the complexity of the sampling device of ... 07/19/07 - 20070165747 - Digital clock controller, radio receiver, and methods for use therewith A digital clock generator includes a base clock generator for generating a base clock signal at a variable base clock frequency in response to a control signal. A digital clock controller generates a digital clock signal having a substantially constant number of digital clock cycles over a predetermined period. ... 07/12/07 - 20070160167 - Integrated circuit having radio receiver and methods for use therewith An integrated circuit includes a radio receiver for receiving a received radio signal having a plurality of channel signals, each of the plurality of channel signals being modulated at one of a corresponding plurality of carrier frequencies. The radio receiver converts a selected one of the plurality of channel signals ... 06/28/07 - 20070147545 - Receiving method and receiver BB input units input baseband received signals. An initial weight data setting unit sets weighting coefficients to be utilized in the interval of a training signal as initial weighting coefficients. A gap compensating unit compensates control weighting coefficients with a gap error signal and outputs the updated weighting coefficients acquired ... 06/07/07 - 20070127596 - Apparatus for calculating phase using binary search A phase calculation apparatus using a binary search is provided. The phase calculation apparatus includes a quarter surface preprocessor determining the bigger one between an absolute value of I component data and an absolute value of Q component data as horizontal component data and the smaller one as perpendicular component ... 05/31/07 - 20070121759 - Method and apparatus for integrated distribution function capture Probability distribution functions (PDFs), of a periodic input data signal, can be used to provide eye-diagram information. An advantage of PDFs, over conventional approaches to eye-diagram collection, is that analog-to-digital conversion can be accomplished by the slicer of a receiver, provided the slicer can programmably change its threshold. A cumulative ... 05/24/07 - 20070116149 - Memoryless spectrum correction algorithm for non-ideal i/q demodulators An algorithm for correcting the output of an analog I/Q demodulator without the need for calibration or storing state information. The output of the analog I/Q demodulator is digitized, and the discrete-time samples are divided into segments. A digital frequency transform (e.g., a Discrete Fourier Transform) is computed for each ... 05/24/07 - 20070116148 - Radio receiver, system on a chip integrated circuit and methods for use therewith A system on a chip integrated circuit includes an analog front end for receiving a received radio signal having a plurality of channel signals, each of the plurality of channel signals being modulated at one of a corresponding plurality of carrier frequencies, and for converting a selected one of the ... 05/24/07 - 20070116147 - Radio receiver, system on a chip integrated circuit and methods for use therewith A system on a chip integrated circuit includes a first digital module and a second digital module such that the second digital module generates an output during the predetermined period that is based on an output of the first digital module generated during a prior predetermined period. A digital clock ... 05/03/07 - 20070098113 - Data scan mechanism Methods and devices for scanning an incoming datastream for a plurality of target patterns. The scanning system receives an incoming data stream and stores the stream as sequential symbols in a register array. Previously received symbols are shifted in the array as incoming symbols are shifted in. A trigger stage ... 04/19/07 - 20070086545 - Method and apparatus for coding in a telecommunications system First and second transmission links are established with a remote station. An information signal is encoded to provide an encoded information signal having more bits than the information signal. First and second transmission signals are provided wherein each transmission signal has bits selected from the encoded information signal. Each of ... 04/19/07 - 20070086544 - Nyquist folded bandpass sampling receivers and related methods Nyquist folded bandpass sampling receivers are disclosed that utilize wideband filters and modulated sampling clocks to identify received signals. In operation, multiple Nyquist zones are allowed to fold on top of each other during sampling. Because the RF sampling clock is modulated, separate frequency modulations can be induced within each ... 04/12/07 - 20070081612 - Edge incremental redundancy support in a cellular wireless terminal A system for implementing Incremental Redundancy (IR) operations in a wireless receiver includes a baseband processor, an equalizer, a system processor, and an IR processing module. The baseband processor receives an analog signal corresponding to a data block and samples the analog signal to produce samples. The equalizer receives the ... 04/12/07 - 20070081611 - Swept bandpass filter frequency modulated continuous wave (fmcw) receiver and related method A swept bandpass filter for receiving frequency varying input signals is disclosed. More particularly, a swept bandpass filter frequency modulated continuous wave (FMCW) receiver and related method are disclosed that provide an efficient solution for FMCW signals. The swept bandpass architecture eliminates the need for front-end mixing circuitry and allows ... 04/05/07 - 20070076818 - System and method for calibrating an analog signal path during operation in an ultra wideband receiver A system (500) and method (400) are presented for calibrating an analog signal path (200) associated with an Ultra Wideband (UWB) receiver (103). The analog signal path includes a plurality of analog gain stages (210, 212-214, 216), a local oscillator mixer stage (211), a compensation stage (218), and a converter ... 03/22/07 - 20070064835 - Interoperability improvement in terminals having a transmitter interfering with a receiver A method is disclosed that is performed in an apparatus having a receiver including a number of modules. The method includes receiving information in a reception frequency band. Responsive to a notification from a transmitter of a transmission in a predetermined transmission frequency band, at least one countermeasure is performed ... 03/15/07 - 20070058752 - Methods and systems for estimating sampling frequency offset of ofdm symbols A method for obtaining sampling frequency offset of an Orthogonal Frequency Division Multiplexed symbol in an OFDM receiver. The method comprises obtaining a first series of pilot pairs, wherein each pilot pair is symmetric with a dc point of a frequency axis, and each pilot pair has a first pilot ... 03/08/07 - 20070053466 - Frequency shift keying demodulation technique Improved digital FSK demodulator methods and circuitry are disclosed. The demodulation method can be implemented using a standard microcontroller such as is usually already present in a telemetry receiving device. The demodulation method is simple and, when a microcontroller is used, easy to implement using standard portions of the microcontroller ... 03/01/07 - 20070047670 - High-frequency detection mechanism and automatic gain control system utilizing the same An automatic gain control mechanism with high-frequency detection. During a predetermined period, the cumulative strength of the real part of a complex-valued input signal is compared with that of the imaginary part of the complex-valued input signal. The zero crossings in either the real part or imaginary part of the ... 03/01/07 - 20070047669 - Two-step channel selection for wireless receiver and transmitter front-ends A reconfigurable receiver, a reconfigurable transmitter and a multimode receiver are disclosed, operating in accordance with a two-step channel selection. In the receiver, the first step provides for a coarse radio frequency (RF) channel selection, to downconvert a desired channel and an image channel of the desired channel to IF. ... 02/22/07 - 20070041472 - Phase sampling techniques using amplitude bits for digital receivers The present invention uses at least one amplitude bit to assist the phase-sampling technique used in digital receiver architectures. For digital receivers where the Intermediate Frequency (IF) is an integer multiple of the fundamental frequency f0, the present invention provides reduced processing complexity and reduced power consumption. The present invention ... 02/15/07 - 20070036240 - Quadrature alignment in communications receivers The present invention, generally speaking, takes advantage of the properties of quadrature signals to achieve precise quadrature alignment in a simple fashion. In particular, the expectation of the product of quadrature signals is zero. In accordance with the teachings of the invention, a phase error detection network therefore operates by ... 02/15/07 - 20070036239 - Systems, methods, and apparatus for impulse noise mitigation A method of signal processing according to one of several embodiments includes estimating a deterministic component of a received signal. The estimating is based on an estimated response of a transmission channel. Based on the estimated deterministic component, a non-deterministic component of the received signal is estimated. Based on corrupted ... 02/01/07 - 20070025471 - Communication apparatus including a buffer circuit having first and second portions for alternately storing results A communication apparatus includes a radio frequency (RF) circuit configured to operate on an RF signal. The communication apparatus also includes a digital processing circuit and a buffer circuit having a first portion and a second portion. The digital processing circuit may operate in association with the RF circuit according ... 02/01/07 - 20070025470 - System and method for detecting known sequence in transmitted sequence A known sequence of symbols is located within a transmitted sequence of symbols by estimating the phase differences between offset symbols within a portion or more of the transmitted sequence, estimating the phase differences between offset symbols in the known sequence, and determining that the symbols within the portion or ... 02/01/07 - 20070025469 - Multi-path acquisition in the presence of very high data rate users A method of multi-path acquisition may include estimating a contribution of acquired users of a first type to a received signal, canceling the estimated contribution from the received signal to generate a resultant signal, and performing multi-path acquisition for users of the first type and users of a second type ... 01/25/07 - 20070019758 - Method and apparatus for processing multiple adjacent radio frequency channels simultaneously A method and apparatus of processing multiple adjacent radio frequency (RF) channels simultaneously are disclosed. The apparatus includes an analog front end, a local oscillator (LO), a mixer, a filter, an analog-to-digital converter (ADC) and a Hilbert transformer. Received RF signals including a plurality of channels adjacent to each other ... 01/18/07 - 20070014383 - Remotely controlled antenna and method An antenna system for receiving radio waves and for operation in conjunction with a remote controller that transmits control data including gain state data. The antenna system includes an antenna that receives the radio waves and outputs a radio frequency signal and a radio frequency amplifier coupled to receive and ... 01/11/07 - 20070009065 - Sub-system based window placement and size decision mechanism and method thereof A method of path detection in a multi-path communications system that includes selecting an object for configuring a search window, setting at least one sub-window, wherein the sub-window is smaller in size than the search window, providing a first counter for the object, setting a threshold, selecting a decision period ... 01/04/07 - 20070002971 - Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation A parameter representation of a multi-channel signal having several original channels includes a parameter set, which, when used together with at least one down-mix channel allows a multi-channel reconstruction. An additional level parameter is calculated such that an energy of the at least one downmix channel weighted by the level ... 01/04/07 - 20070002970 - Method and apparatus for increasing data transfer rates through a communication channel A system for receiving data on a communication channel. The system examines the state of a bit that was previously received on the channel. If the state of the previously received bit was high, the system looks for a falling edge while receiving a subsequent bit on the channel. Otherwise, ... 12/21/06 - 20060285611 - Method and radio receiver for increasing number of symbols used as pilot symbols in communication system A solution for determining in a radio receiver a data sequence indicating transmission parameters of a frame before the whole frame has been received in the radio receiver in order to obtain additional pilot symbols. According to the provided solution data is received in one or more time intervals, the ... 12/21/06 - 20060285610 - Data sequence detection in communication system A solution for determining in a radio receiver a data sequence indicating transmission parameters of a frame before receiving the whole frame in the radio receiver in order to speed up processing of the data in the frame. According to the provided solution data is received in one or more ... 12/21/06 - 20060285609 - Method for improving multipath mitigator low path separation error behavior In signal transmission ranging systems such as GPS, radar, and the like, accuracy of the ranging information most generally is effected by the presence of multiple paths of signal transmission, i.e., multipath. Optimal methods for estimating signal delay are signal model dependent. Signal models are most ambiguous with secondary path ... 12/14/06 - 20060280263 - Apparatus and method for processing input signals corresponding to the same signal source at different timings A receiving apparatus includes a receiving module and a processing module. The receiving module is used for receiving a plurality of received signals and selecting the received signals to generate a plurality of input signals. The processing module is used for processing the input signals to generate an output signal. ... 12/07/06 - 20060274857 - Rfid receiver with digital down conversion An RFID receiver uses digital down conversion to facilitate determination of the frequency of a radio frequency signal from an RFID tag and to facilitate demodulation of the signal. Two analog-to-digital converters can be configured to undersample a signal from the RFID tag. Adjacent pairs of samples can be used ... 12/07/06 - 20060274856 - System and method for communicating confidential messages A method of recording messages includes recording audio data in a first file structured in accordance with a file format that defines a first portion and a second portion. The audio data is recorded in the first portion of the first file. The method also includes encrypting the audio data ... 11/23/06 - 20060262884 - Apparatus and method for gps-based digital compensation of radio frequencies An apparatus and method for controlling the communication frequencies of a software controlled radio by using GPS to calibrate one or more local oscillators and compensating within the digital radio processing for the local oscillator inaccuracies. ... 11/23/06 - 20060262883 - Method and apparatus for estimating doppler speed in wireless communication The present invention is related to a method and apparatus for estimating Doppler speed in wireless communication. The apparatus comprises a receiver, a sampler, a pilot/data removal unit, a phase change rate (PCR) measurement unit, a Doppler speed value calculating unit. The receiver receives signals, and the sampler samples the ... 11/23/06 - 20060262882 - Serial radio frequency to baseband interface with programmable clock An interface between an RF processing section and a baseband processing section supports general purpose message transmission as well as satellite positioning system signal sample transmission between the RF processing section and the baseband processing section. The interface includes a bi-directional message serial interface and a data serial interface. The ... 11/09/06 - 20060251187 - Power and area efficient receiver circuit having constant hysteresis for noise rejection A hysteresis receiver containing two inverters and a logic controller. The inverters are implemented with threshold voltages equaling Vil and Vih, which together define the hysteresis window. The inverters receive the input signal and generate a respective inverted value. The logic controller propagates as output one of the two inverted ... 11/09/06 - 20060251186 - Wireless communication receiver having an adc with a limited dynamic range The present invention provides a low cost receiver by reducing the required dynamic range of the ADC in a wireless communication receiver, without degrading the receiver performance. In the wireless communication receiver of the invention, a digital filter is used to filter digital signals from the ADC to attenuate residual ... 11/02/06 - 20060245519 - Calibrating integrating receivers for source synchronous protocol An embodiment of the present invention is a technique to calibrate an integrating receiver. A delay calibration circuit calibrates an adjusting code of a chain of delay elements and positioning of at least an integrating strobe used to define an integration window for the integrating receiver. An integrating receiver calibration ... 11/02/06 - 20060245518 - Receiver front-end with low power consumption Receiver (20) comprising a mixer (23) with a first input, a second input and one output. An input signal (SRF(t)) comprising a high frequency component fRF is applied to the first input, and a local oscillator signal (SLOnew(t)) is applied to the second input of the mixer (23). The local ... 10/26/06 - 20060239382 - Adaptive direct conversion receiver A method and apparatus is disclosed for improving performance of a communication receiver. An exemplary method comprises calculating a rate of error associated with a received signal at a first time; comparing the rate of error at the first time to a first threshold rate of error; if the rate ... 10/12/06 - 20060227899 - Apparatus and method for storing/recovering spectrum An apparatus and a method for storing/recovering spectrum are provided. The apparatus includes an RF receiver block, a plurality of memory blocks, an RF transmission block, a control circuit. The RF receiver block receives spectrum of signals transmitted through a predetermined RF band (predetermined RF band signals) to down-covert the ... 10/12/06 - 20060227898 - Radio receiver A radio receiver is provided that includes a front-end circuit operable to receive radio signals transmitted across a frequency band and generate an analog signal corresponding to a plurality of channels within the frequency band. Also included is an analog to digital converter operable to convert the analog signal to ... 10/05/06 - 20060222106 - Method for detecting single frequency tones A method and apparatus are provided for detecting a relatively constant frequency signal on a communication channel. The method includes the steps of detecting sign changes of the signal on the channel and determining that the signal is substantially the only signal present on the channel when an average time ... 09/28/06 - 20060215787 - Data receiver including a transconductance amplifier According to one embodiment, a system, apparatus, and method for receiving high-speed signals using a receiver with a transconductance amplifier is presented. The apparatus comprises a transconductance amplifier to receive input voltage derived from an input signal, a clocked current comparator to receive output current from the transconductance amplifier, and ... 09/21/06 - 20060209987 - Receiver and its adjustment system and method A receiver and its adjustment system and method that can reduce the effort and the cost required to give good characteristics. The receiver comprises a quadrature detector whose characteristics value is varied by adjusting the capacitance. The quadrature detector comprises a variable capacitance circuit 182 formed on a semiconductor substrate ... 09/07/06 - 20060198467 - Semi-synchronous receiver and apparatus for reading information A receiver is described for delivering a data sequence (ak) at a data rate 1/T from an analog signal (Sa), the receiver comprising: a) converting means (40) for generating a received sequence (rn) by sampling the analog signal (Sa) with a sample rate of 1/Ts, whereby the sample rate 1/Ts ... 08/31/06 - 20060193400 - System and method for estimating probabilities of events A dual adaptive importance-sampling system and method is provided that can estimate the probability of events by combining dual complementary importance-sampling simulations. The present invention exploits the ability to determine an optimal biased pdf using an iterative procedure that requires relatively little a priori knowledge of how to bias. Hence, ... 08/10/06 - 20060176979 - Wave detection device, method, program, and recording medium It is possible to detect a reception signal at a high speed. A wave detection device includes: a first signal output unit for outputting a first signal s[n] which is a sum of a digital input signal subjected to A/D conversion and an output from a feedback signal output section; ... 07/27/06 - 20060165195 - A low power, dc-balanced serial link A receiver for a data communication system which comprises a transmission line between first and second integrated circuits. An encoder on the first integrated circuit encodes an input data stream to produce a sequence of codewords, wherein codewords in the sequence are members of a set of codewords representing data ... 07/20/06 - 20060159200 - Front end interface for data receiver A data receiver is provided which includes a front end interface circuit having an alternating current (AC) transmission receiving mode and a direct current (DC) transmission receiving mode. The front end interface circuit includes an offset compensation circuit operable to compensate a DC voltage offset between a pair of differential ... 06/29/06 - 20060140306 - Analog-to-digital converter with a decision circuit and an optimized decision threshold The device includes a decision circuit (6a) for providing, by comparing the amplitude of a received modulated signal (Sr) to a decision threshold (Vth, Th), a binary signal (Sb) with two states respectively representing first and second binary values that respectively correspond to low and high values of the received ... 06/15/06 - 20060126758 - Apparatus for providing a multi-mode interface between a baseband receiver and radio frequency circuitry An apparatus for providing a multi-mode interface between a baseband receiver and radio frequency (RF) circuitry. According to a preferred embodiment of the invention, the apparatus includes a first differential-to-single-ended converter, a second differential-to-single-ended converter and an analog-to-digital converter. The first differential-to-single-ended converter receives an incoming differential current pair to ... 06/08/06 - 20060120484 - Method to determine optimum receiving device among two dimensional diffusive signal-transmission devices and signal processing apparatus A method to determine an optimum receiving device, which receives a signal outputted from a separate device through wireless communication, among a plurality of communication devices two-dimensionally arranged on a two dimensional diffusive signal-transmission board, the plurality of communication devices being configured to communicate with each other using a two ... 06/08/06 - 20060120483 - Heterodyne-based optical spectrum analysis using data clock sampling A complex spectrum related to a carrier signal that is modulated with random data is measured as a function of the data clock so that the randomness that is contributed by the modulation of random data can be ignored. In one embodiment, the complex spectrum that is expressed in terms ... 06/01/06 - 20060115017 - Enhanced denoising system utilizing incremental parsing An apparatus for operating on a received signal that includes a noise-free signal that has been corrupted by a channel is disclosed. A memory stores a channel corruption function specifying the probability that a symbol having a value I was converted to a symbol having a value J by the ... 05/18/06 - 20060104385 - Systems with increased information rates using embedded sample modulation and predistortion equalization implemented on metallic lines In these systems overlapping symbols are transmitted in one symbol time. The basic symbol, termed a half dipulse, is shaped so that a subset of samples, termed the embedded samples, has an inverse. This inverse is used at the receiver to remove the intersymbol interference amongst overlapping symbols. A symbol ... 04/27/06 - 20060088129 - Method for demodulating a digital signal based on an estimate of multipath propagation impairment, and an associated receiver A method for demodulating a received digitally modulated signal subjected to multipath propagation impairment includes estimating the multipath propagation impairment of the received digitally modulated signal using a channel estimator, and estimating at least one symbol of the received digitally modulated signal using a symbol estimator. The at least one ... 04/27/06 - 20060088128 - Method for demodulating a digital signal based on a generated error signal, and an associated receiver A method for demodulating a received digitally modulated signal subjected to multipath propagation impairment includes estimating the multipath propagation impairment of the received digitally modulated signal using a channel estimator, and estimating at least one symbol of the received digitally modulated signal using a symbol estimator. The at least one ... 04/13/06 - 20060078069 - Hybrid receiver architecture using upconversion followed by direct downconversion A receiver configured to selectively receive an RF signal from an operating band having a plurality of RF channels. The receiver is configured to upconvert the desired RF channel to an intermediate frequency (IF) greater than the RF channel frequencies. The upconverted RF channel is downconverted to baseband or a ... 04/13/06 - 20060078068 - Methods and apparatus for wireless communication One embodiment of the invention is directed to operating, in a wireless network, a device that is designed for operation in a different wireless network. In one embodiment, a device designed to operate in a GSM wireless network may be used to communicate in a PHS wireless network. ... 04/06/06 - 20060072685 - Wireless communication system with hardware-based frequency burst detection A wireless communication system is provided that includes RF circuitry and signal processing circuitry. The signal processing circuitry includes a dedicated frequency burst (FB) search hardware circuit which exhibits relatively low noise in comparison with other digital processing circuitry, such as a DSP and MCU, within the system. The RF ... 03/23/06 - 20060062329 - Apparatus and method for adaptive digital locking and soft evaluation of data symbols in a wireless digital communication system A data communication system detects a synchronization signal and a start pattern, and extracts data symbols from a serially encoded digital data stream transmitted to a receiver. The communication system transmission apparatus that includes a frame formatter, which generates a frame of symbols of serially encoded data to be transmitted. ... 03/23/06 - 20060062328 - Data receiver The present invention relates to an improved data receiver capable of performing efficient serial transmission of a plurality of channels of HD-SDI signals. The receiver includes a bit/word synchronism setting section for detecting synchronous word data having a particular bit array from the received multiplexed word array data based on ... 03/23/06 - 20060062327 - Method and apparatus for data recovery A method for recovering data includes oversampling an input data signal to provide sample sets, and storing a plurality of sample sets in addressable memory. The sample sets are processed, using sequential logic to make determinations of respective samples suitable for use in data recovery from corresponding sample sets. One ... 03/16/06 - 20060056544 - Method and device for delay-sensitive measurement of a signal The present invention relates to a method for detecting the amplitude and/or phase position of an at least partly intensity-modulated signal (PE(t)), and a corresponding device for carrying out the method. In order to provide a method and a device which make it possible to avoid the disadvantages of the ... 03/16/06 - 20060056543 - Radio pre-recording apparatus and its method A radio pre-recording apparatus and its method is proposed. In the prior art, the important portion of the radio program is usually truncated partially during recording because the recording button isn't pressed in time. For solving this problem, the radio pre-recording apparatus of the present invention has a radio frequency ... 03/16/06 - 20060056542 - Delay line for multiple propagation paths reception The present invention relates to a delay line (D LINE) for delaying an input sig al, said input signal comprising a series of samples (IN TIME, LATE, VOID). The nvention is characterized in that it is intended to delay the input signal by a eries of delays and that the ... 03/16/06 - 20060056541 - Improving hierarchical 8psk performance A method and receiver systems for demodulating and decoding a hierarchically modulated signal, e.g. an 8PSK signal, are disclosed. An exemplary method includes demodulating and processing (502) the hierarchically modulated signal (202) to produce symbols (212) from the first modulation at the first hierarchical level, applying information (504) from a ... 03/02/06 - 20060045206 - Method and system for generating reference voltages for signal receivers A method and system for generating a reference voltage for memory device signal receivers operates in either a calibration mode or a normal operating mode. In the calibration mode, the magnitude of the reference voltage is incrementally varied, and a digital signal pattern is coupled to the receiver at each ... 01/26/06 - 20060018407 - Semiconductor device, memory device and memory module having digital interface An object of the present invention is to reduce jitter dependent on data patterns by an interface receiver. Another object of the present invention is to provide an LSI capable of automatically adjusting a delay time for jitter reduction so as to be able to control its setting for each ... 01/26/06 - 20060018406 - Amplitude and phase matching for layered modulation reception An apparatus and method for receiving layered modulation signals is disclosed. A typical method includes receiving a layered modulation signal including an upper layer signal and a lower layer signal, demodulating and decoding the upper layer signal from the received layered modulation signal, estimating an upper layer amplitude factor and ... 01/19/06 - 20060013337 - Constant delay zero standby differential logic receiver and method A differential receiver circuit on an integrated circuit consumes substantially no standby power, has constant propagation delay regardless of the input common mode bias, has acceptable common mode rejection and includes first and second pass circuits and buffers to receive differential input signals. The first pass circuit provides a true ... 01/19/06 - 20060013336 - Frequency estimation method and system A multiple linear regression frequency estimation method and system. A phase sequence of a received signal is derived and divided into several subsequences according to predetermined rules. The phase differences of the subsequences are calculated for frequency estimation using linear regression analysis. A plurality of frequency estimation values are obtained ... 01/12/06 - 20060008032 - Synchrodyning apparatus Synchrodyning apparatus in which a PAM IF signal is mixed with unmodulated carriers nominally at the frequency of the carrier, which unmodulated carriers are in quadrature with respect to each other. E.g., the PAM IF signal may be an intermediate-frequency 8VSB digital television signal. The baseband signals resulting from the ... 01/05/06 - 20060002490 - Receiver for a wire-free communication system The present invention is directed to a receiver for a wire-free communication system for reception of a received signal which is modulated using a digital modulation method having a first frequency conversion device for production of a frequency-converted received signal by conversion of the received signal to an intermediate frequency. ... 12/29/05 - 20050286654 - Method and system for blindly detecting a discontinuously transmitted shared channel, in particular blind high speed shared control channels detection A method for detecting an eventual channel intended to a designated user equipment among n channels received by the designated user equipment during a given duration, each channel received during the duration carrying encoded data masked with an identifier associated to a user equipment. The method includes a selecting phase ... 12/22/05 - 20050281355 - Reducing power consumption in signal detection Methods, systems, and media to time-share the signal detection between reference voltages for a data transmission are contemplated. Embodiments include a time-sharing detector that is designed to enable comparison of a first reference voltage and a second reference voltage against the serial data transmission in a specified pattern. In many ... 12/15/05 - 20050276352 - Method and system for establishing an adaptable offset for a receiver A method and system of establishing an offset for a receiver. In one embodiment, a method includes receiving an input signal and generating a first signal. The method can further include integrating the input signal and the first signal at a reference node. In addition, the method can include comparing ... 12/15/05 - 20050276351 - Receiving arrangement of a cordless communication system A receiving arrangement for a cordless communication system includes an analog radio-frequency input section and a digital signal processing device connected downstream thereof. The digital signal processing device has an analog/digital converter which is followed by a digital mixing stage and a decimation unit. The decimation factor of the decimation ... 12/01/05 - 20050265484 - Apparatus and method for receiving digital multimedia broadcasting in a wireless terminal An apparatus and method for receiving digital multimedia broadcasting (DMB) signals in a wireless terminal. A first antenna receives a satellite DMB signal and a first terrestrial DMB signal. A second antenna receives a second terrestrial DMB signal. A satellite DMB receiver receives the satellite DMB signal through the first ... 12/01/05 - 20050265483 - Digital noise coupling reduction and variable intermediate frequency generation in mixed signal circuits A communications system comprises a local oscillator configured to generate a local oscillator output and a signal processing component coupled to the local oscillator. The signal processing component is configured to receive a clock signal and the clock signal is derived from the local oscillator output. A method of demodulating ... 12/01/05 - 20050265482 - Apparatus and method to extend communication range Briefly, in accordance with an embodiment of the invention, an apparatus to extend communication range is provided. The apparatus may be coupled to a wireless local area network (WLAN) access point (AP) and may include at least one low noise amplifier, a power amplifier, and two circulators. ... 11/17/05 - 20050254599 - Device and method for down-mixing of a radio-frequency signal, which has been received by radio, to baseband A receiver device includes a first mixer for production of a first analogue intermediate signal by down-mixing of a radio-frequency signal. The device also includes an A/D converter for production of a first digital intermediate signal, a second mixer for production of a second digital intermediate signal from the first ... 11/17/05 - 20050254598 - Channel state determination method and channel state generator in receiver Exemplary embodiments of the present invention provide a receiver, a generator, an error-averager, and a determiner and methods for the same. In exemplary embodiments of the present invention, cyclical characteristics of a signal may be used to obtain an improved signal-to-noise ratio (SNR). Exemplary embodiments of the generator may generate ... 11/10/05 - 20050249313 - Frequency content separation using complex frequency shifting converters A frequency separating system is described utilising tuneable frequency shifting complex converters in which the centre frequency of the band extracted and the bandwidth extracted can be varied depending upon the parameters chosen by the user. A single output band may contain multiple target carrier signals for separation using fine-tuning ... 10/27/05 - 20050238120 - Adaptable demodulator A method and a circuit for detecting a binary state supported by an analog symbol, comprising sampling the symbol with a sampling signal based on a frequency having a period shorter than the duration of a symbol, selecting a number of significant samples smaller than the number of samples which ... 10/27/05 - 20050238119 - Adaptive hysteresis receiver for a high speed digital signal An adaptive hysteresis receiver processes a high speed digital signal. A differential receiver circuit compares the high speed digital signal to a reference voltage to generate an output signal. A register circuit latches the output signal, according to a clock signal, to produce a control signal. A reference voltage generator ... 10/27/05 - 20050238118 - Method for detecting a signal contaminated by additive gaussian noise and a detector using the method analytically or numerically without limiting assumptions, and to make a comparison with a threshold value for deciding the question of detection. ... // - 2 - ... // - 1 - ... 10/20/05 - 20050232375 - Apparatus and method for automatic performance control in a digital radio In digital radio technology, information channels describing the properties of the associated performance channel(s) are included in the broadcast band. The digital radio determines when selected signal groups are present in the information channels. Upon identification of a selected signal group, the digital radio automatically reconfigures itself into a user-determined ... 10/13/05 - 20050226349 - Down conversion methodology and topology which compensates for spurious response There is a need for an inexpensive, high-performance, fully-integrable, multistandard transceiver, which suppresses spurious noise signals. The invention provides a topology that satisfies this need, providing a first mixer for receiving an input signal x(t), and mixing it with a multi-tonal mixing signal φ1 to generate an output signal φ1 ... 10/06/05 - 20050220221 - Identifying a local device by name A method for identifying a local device by name, comprising including: storing a database that associates a plurality of device identifiers with a plurality of respective device names; wirelessly obtaining a device identifier of at least one local device from the at least one device; and using the stored database ... 10/06/05 - 20050220220 - Slicing algorithm for multi-level modulation equalizing schemes A method for slicing a received signal includes the steps of receiving a signal representing one of a constellation of ideal data points in a planar signal space, the received signal being at a point in the signal space, and assigning to the received signal a decision point having a ... 09/29/05 - 20050213688 - Contactless data carrier with current demodulation A data carrier including demodulating circuitry for detecting a data signal carried by a received electromagnetic wave. The demodulator produces a signal derived from at least two additional signals. The first of the additional signals is dependent upon current received from the input to the data carrier and the second ... 09/29/05 - 20050213687 - Receiving apparatus Radio units perform frequency-conversion from radio-frequency analog signals received by antennas to baseband analog signals. The radio units detect the strength of the baseband analog signals and output it as RSSIs. A generating unit generates a single pseudo RSSI from a plurality of RSSIs. A-D units perform analog-to-digital conversion on ... 09/22/05 - 20050207512 - Multichannel simultaneous real time spectrum analysis with offset frequency trigger An instrumentation receiver for multichannel simultaneously realtime spectrum analysis with frequency trigger offset inputs a wideband IF signal derived from a wideband RF signal by the receiver to both a wideband IF channel and a narrowband IF channel simultaneously. The wideband IF signal output from the wideband IF channel is ... 09/15/05 - 20050201488 - Display of digital interface symbol information from an analog signal A system and method for displaying digital interface symbol information from at least one analog signal is provided. The digital interface symbol information includes encoded symbols as well as decoded information the encoded symbols represent. First, a set of data samples of the analog signal is captured at a frequency ... 09/08/05 - 20050195920 - Fm radio receiver processing system A processing front-end for FM radio signals includes a receiver, a filter, and a mixer. The receiver obtains an FM radio signal including data content centered at a data frequency and programming content. The filter is coupled to the receiver and removes the programming content from the FM radio signal. ... 09/01/05 - 20050190863 - Receiving device and integrated circuit for reception In order to improve various characteristics of a receiving circuit for digital radio services, circuits are provided for forming two local oscillation signals, whose frequencies are both the center frequency between a first ensemble and a second ensemble, and whose phases differ by 90° from each other. Furthermore, there are ... 09/01/05 - 20050190862 - Receiving device and integrated circuit for reception In order to improve various characteristics of a receiving circuit for digital radio services, circuits are provided for forming two local oscillation signals, whose frequencies are both the center frequency between a first ensemble and a second ensemble, and whose phases differ by 90° from each other. Furthermore, there are ... 09/01/05 - 20050190861 - Receiving device and integrated circuit for reception In order to improve various characteristics of a receiving circuit for digital radio services, circuits are provided for forming two local oscillation signals, whose frequencies are both the center frequency between a first ensemble and a second ensemble, and whose phases differ by 90° from each other. Furthermore, there are ... 09/01/05 - 20050190860 - Demodulation of a frequency-modulated received signal by means of a viterbi algorithm Apparatus for demodulation of a signal which is frequency-modulated with a data symbol sequence {dk}, having a zero crossing detector (1), a generator (2) for production of a sequence {zi}, with zi being calculated from zero crossings ti and ti+1, and having a unit (3) for reconstruction of the data ... 09/01/05 - 20050190859 - If derived data slicer reference voltage circuit A method of deriving a reference voltage for a data slicer features supplying a signal to a filter and filtering the signal; supplying the filtered signal to a comparator which comprises the data slicer; passing the signal prior filtering through an RC circuit; and using the output of the RC ... 08/25/05 - 20050185737 - Data receiver adaptively operable to received signal strength indication The modem has an RF section developing an RSSI signal and a baseband signal converted from a received signal. A reference voltage output section feeds a reference voltage to a comparator. The comparator outputs, when the RSSI signal is higher in level than the reference voltage, a control signal to ... 08/18/05 - 20050180529 - Signal detector A method, apparatus, and system for detecting a tone. ... 08/18/05 - 20050180528 - Method and apparatus for down conversion of radio frequency (rf) signals There is a need for an inexpensive, high-performance, fully-integrable, multi-standard transceiver, which suppresses spurious noise signals. The invention provides a topology that satisfies this need, using a first signal generator which produces an oscillator signal f1 and a second signal generator which produces a mono-tonal mixing signal φ2, where f1 ... 08/11/05 - 20050175121 - Receiving method and receiver BB input units input baseband received signals. An initial weight data setting unit sets weighting coefficients to be utilized in the interval of a training signal as initial weighting coefficients. A gap compensating unit compensates control weighting coefficients with a gap error signal and outputs the updated weighting coefficients acquired ... 08/11/05 - 20050175120 - Clock-less serial data interface using a single pin A data communication method for receiving digital data on a data terminal includes receiving data pulses having a first pulse separation to represent a first logical data value and a second pulse separation to represent a second logical data value, generating a voltage ramp signal, resetting the voltage ramp signal ... 08/11/05 - 20050175119 - Forward link quality link monitoring apparatus and method A system and method for accurately determining Eb/No information for a signal transmitted by a second communications station, via electromagnetic wave signals, to a first communications station. The system involves a noise generating subsystem for generating a known quantity of noise that is applied to the received signal to create ... 08/04/05 - 20050169403 - Receiving method and receiver BB input units input baseband received signals. An initial weight data setting unit sets weighting coefficients to be utilized in the interval of a training signal as initial weighting coefficients. A gap compensating unit compensates control weighting coefficients with a gap error signal and outputs the updated weighting coefficients acquired ... 07/21/05 - 20050157818 - Direct digital conversion tuner and method for using same A direct sampling tuner includes a low noise amplifier and an optional dynamically configurable band pass filter coupled to the low noise amplifier. The optional filter is configured to pass a selected band of channels. The tuner further includes a relatively high accuracy, multi-bit analog-to-digital converter (“ADC”) coupled to the ... 07/21/05 - 20050157817 - Method for receiving two decorrelated signals transmitted on a single channel and receiver for implementing said method A process for receiving a composite signal transmitted via a nonlinear data transmission channel comprising a first signal UL and a second signal LL. The process comprises the following: demodulating and decoding said first signal UL by means of a first demodulation and decoding chain in order to regenerate said ... 07/14/05 - 20050152475 - Systems and methods for receiving data in a wireless communication network A method of communicating over a wideband communication channel divided into a plurality of sub-channels comprises dividing a single serial message intended for one of the plurality of communication devices into a plurality of parallel messages, encoding each of the plurality of parallel messages onto at least some of the ... 07/07/05 - 20050147185 - Oc192 peak detect circuit having low parasitics, high dynamic range and high sensitivity Accurate measurement of a signal at extremely high data rates such as OC192 is accomplished, to provide a high dynamic range. A data receiver comprises a limiting amplifier comprising a plurality of amplifier stages. A peak detector measures a voltage level of an input to the limiting amplifier. An input ... 07/07/05 - 20050147184 - Signal processing method and signal processing apparatus A signal input into an input terminal 1 is input into mixers 2, 4, and down-converted with local signals having a phase difference of 90 degrees, respectively, whereby an I-signal and a Q-signal are obtained. An output signal from the mixer 4 is delayed 90 degrees in phase by a ... 06/30/05 - 20050141642 - Transformer, transforming apparatus, transforming method and machine readable medium storing thereon program A detector for detecting a signal to be measured, which is made to discrete with a predetermined discrete frequency, is provided, wherein the detector includes an analysis signal transformer for eliminating aliasing components of the signal to be measured, which are generated due to the discreteness, by transforming the signal ... 06/30/05 - 20050141641 - Receiving method and receiving apparatus with adaptive array signal processing A correlation unit calculates a correlation value from a digital received signal and a predetermined signal. A receiving weight calculation unit applies the LMS algorithm so as to calculate a receiving weight vector signal. The application of the algorithm is based on a spread signal when the digital received signal ... 06/23/05 - 20050135507 - Apparatus and method for demodulation using detection of channel adaptive modulation scheme An apparatus and a method for demodulation using detection of channel adaptive modulation scheme are disclosed. The apparatus includes: a receiving unit for receiving a signal modulated based on the channel adaptive modulation scheme from an external; a demodulating unit for demodulating the modulated signal according to modulation scheme information; ... 06/23/05 - 20050135506 - Digital detector utilizable in providing closed-loop gain control in a transmitter A digital detector processes at least one received digital signal to generate a squared signal, encodes the squared signal, applies first and second portions of the encoded signal to a multiplier and a look-up element, respectively, and processes outputs of the multiplier and look-up element to generate a detector output ... 06/16/05 - 20050129144 - System and method for deriving symbol timing A symbol timing derivation system derives receiver timing from received symbols which avoids the need for a pilot tone, thereby reducing power consumption and expanding usable bandwidth. The system is implemented by using a calculation that finds the timing phase error. The timing phase error is then averaged and controls ... 06/16/05 - 20050129143 - Channel equalizing device and method of digital broadcasting receiving system A channel equalizing device and method of a digital broadcasting receiving system in which a digital broadcasting signal received over a channel is compensated for a channel distortion to recover an original signal is provided. The channel equalizing device includes: a channel estimating unit for estimating and outputting a channel ... 06/09/05 - 20050123071 - Digital signal processing and receiving apparatus and method A DSP tuner, which is equipped with an A/D converter and a digital signal processing part, is provided to the receiving parts of an in-vehicle equipment and a portable equipment that constitute an in-vehicle equipment remote control system. The A/D converter quantizes analog input signals received by receiving antennas and ... 06/09/05 - 20050123070 - Clock offset compensation via signal windowing and non-data-aided (nda) timing estimator In the invention, a simple and robust method for clock offset compensation is proposed using an equalizer with time-varying signal windowing for which the timing information needed is obtained by an existing non-data-aided (NDA) timing estimator. Instead of interpolating the received signal, the proposed method compensates clock offset by using ... 06/09/05 - 20050123069 - Serial communication device The invention is a serial communication device for receiving serial data and sampling the serial data with synchronizing with communication clocks. The device has a clock generation unit for dividing a reference clock according to a predetermined dividing value, generating the communication clock each time the number of dividing value ... 06/09/05 - 20050123068 - Duobinary receiver An optical receiver adapted to process an optical duobinary signal received over a transmission link in an optical communication system. In one embodiment, the receiver has an optical-to-electrical signal converter coupled to a decoder. The decoder processes an electrical signal generated by the converter to generate a bit sequence corresponding ... 06/02/05 - 20050117665 - Device and method for determining the deviation of the carrier frequency of a mobile radio device from the carrier frequency of a base station A device for determination of the frequency discrepancy (105) between a mobile radio and a base station which is transmitting a sequence of symbols, having a unit (6-11) for calculation of terms, with one term being formed from two symbols in the sequence received by the mobile radio, and in ... 06/02/05 - 20050117664 - Frequency conversion circuit, radio frequency wave receiver, and radio frequency transceiver This arrangement ensures (i) a small frequency conversion circuit that can be mounted on an integrated circuit, (ii) a radio frequency receiver including the frequency conversion circuit, and (iii) a radio frequency transceiver including the radio frequency receiver. ... 06/02/05 - 20050117663 - Chip set for digital audio satellite radio receivers A digital audio radio system includes a radio frequency (RF) integrated circuit (IC) and a baseband digital signal processing (DSP) IC to receive digital audio radio signals from satellites and terrestrial antennae. A serial digital interface couples data between the RF IC and the baseband DSP IC to provide a ... ### FreshPatents.com Support |