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Pulse Or Digital Communications > Systems Using Alternating Or Pulsating Current Systems Using Alternating Or Pulsating CurrentSystems Using Alternating Or Pulsating Current 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.11/15/07 - 20070263734 - Wireless communication system and wireless communication method On the transmitting side, a decision is made as to whether to add pilot symbols which are separate from basic pilot symbols, to frames, based on the propagation path state, and when symbols are added, control symbols comprising information relating to the additional pilot symbols are generated, and frames comprising ... 10/18/07 - 20070242759 - Transmit diversity system and method A transmitter including a plurality of transmitting antennas and a processor operably coupled to the plurality of transmitting antennas. The processor is configured to select a first antenna from the plurality of transmitting antennas for transmission of a frame of data, determine if the frame is successfully received by a ... 10/18/07 - 20070242758 - Device and method for detecting flaws on objects or locating metallic objects Apparatus and associated method for identifying defects on objects provide for—under computer driving—the AC voltage energization of at least one transmitting coil to be simultaneously effected by a carrier signal, and for an essentially amplitude-modulated received signal to be received by means of at least one receiving coil; what is ... 09/27/07 - 20070223599 - Cellular pc modem architecture and method of operation A cellular personal computer (CPC) modem architecture performs radio frequency (RF) processing at the CPC modem hardware level and some or all CPC modem baseband processing is carried out on a processor (CPU) of an electronic computing device. ... 09/27/07 - 20070223598 - Resource adaptive spectrum estimation of streaming data Streaming environments typically dictate incomplete or approximate algorithm execution, in order to cope with sudden surges in the data rate. Such limitations are even more accentuated in mobile environments (such as sensor networks) where computational and memory resources are typically limited. Introduced herein is a novel “resource adaptive” algorithm for ... 09/20/07 - 20070217523 - Small loop antenna for induction reader/writer Multiscale communication, wherein time-frequency conditioning off the transmitted signal is used, is examined with respect to typical wireless communications systems, in which the modulating wavelet is matched to a specific channel condition. Compactly supported wavelet bases are employed, and based on their parameterization a wavelet is selected that best characterizes ... 09/13/07 - 20070211805 - Communications system with selective baseband pilot injected carrier (bpic) and input data modulation and related methods A communications system may include a transmitting device for transmitting a modulated signal therefrom based upon first and second input data. The transmitting device may include a baseband injected pilot carrier (BPIC) generator for selectively generating BPIC data corresponding to the first input data, an interleaver for interleaving BPIC data ... 08/30/07 - 20070201565 - Direct conversion rf transceiver for wireless communications A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down converted to base band frequencies and base band signals to be up converted to wideband RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry includes a low noise amplifier, ... 08/16/07 - 20070189401 - Fec streaming with aggregation of concurrent streams for fec computation Transmitters and receivers deal with streams of data, wherein the receiver is expected to begin using received data before receiving all of the data. Concurrent streams are sent and FEC coding is used with the streams and done as an aggregate. The transmitter performs FEC operations over the plurality of ... 07/05/07 - 20070153921 - Qos control method for transmission data for radio transmitter and radio receiver using the method A radio transmitter/receiver having a QoS control unit for outputting the transmission data in order taking the quality of service (QoS) into consideration. In the case where the information transmission rate for a radio section is not lower than a threshold value, the QoS control operation of the transmission data ... 06/21/07 - 20070140361 - Method and system for detecting transmitted data signal quality and integrity The invention relates to a method and system for use in assessing the quality and integrity of a data transmission path or link between a data transmitting location and at least one receiving location at which a broadcast data receiver is located with means to allow an error rate calculation ... 06/14/07 - 20070133694 - Communication system for transmitting and receiving a communication signal having an intra-guard-interval A communication system which transmits and receives a communication signal having an intra-guard-interval (IGI) inserted is provided. The communication system includes a signal generator which is configured to generate a signal to carry data; and a signal output part which is configured to split a symbol period, which is a ... 05/31/07 - 20070121735 - Communication system using length shift keying modulation A communication system using a length shift keying (LSK) modulation method provides a transmitter having a carrier signal generator for generating carrier signals, and a modulator for modulating lengths of the carrier signals from the carrier signal generator according to combinations of data bits, and a receiver having an integrator ... 05/24/07 - 20070116136 - Digital demodulating apparatus, controlling method of the apparatus, computer program product for the apparatus, recording medium recording thereon the product, and digital receiver A digital demodulating apparatus includes circuit elements constituting a tuner that performs channel select processing to a received signal that has been interleaved, and a demodulator that performs demodulation processing to the received signal from the tuner; a deinterleaving section that performs deinterleaving to the interleaved received signal from the ... 05/24/07 - 20070116135 - Communication system A communication system includes a first device and a second device connected to the first device by a single communication line. The first device includes a first transmitting portion which transmits to the second device a pulse signal set to a predetermined cycle that differs according to data, and a ... 05/10/07 - 20070104279 - Modulating apparatus, mobile communication system, modulating method, and communication method An encoder encodes sound data and the like to generate a binary signal. A mapper converts the binary signal into a quaternary symbol and outputs the quaternary symbol. A base band filter includes a root raised cosine filter and a sinc filter. The base band filter blocks a predetermined frequency ... 04/19/07 - 20070086532 - Device for transmitting and receiving A device for transmitting and receiving is disclosed that includes: a) an antenna, b) a transmitting/receiving unit for transmitting and receiving data according to a communications standard, which has a transmitting unit, connected to the antenna, for transmitting first data frames to a second transmitting/receiving device and a receiving unit, ... 04/12/07 - 20070081600 - Method of geometric harmonic signal modulation The invention relates to electrical network communications engineering and can be used for automatic data acquisition from intrusion and fire-alarm sensors, electric meters, heat, water and gas consumption meters and from the fiscal memory of cash control monitors. Said invention makes it possible to substentially reduce the energy consumption by ... 03/29/07 - 20070071114 - Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks A cellular wireless packet data communication system containing transmit-only endpoint devices which transmit to receive-only base stations. The system is configured to allow for large area coverage (e.g., a metropolitan area) with far fewer number base stations than are required with conventional two-way cellular systems. The base station coverage areas ... 03/22/07 - 20070064820 - Digital broadcasting signal receiver with a plurality of receiving modules A digital broadcasting signal receiver includes: an antenna module for receiving a digital broadcasting signal; a plurality of receiving modules coupled to the antenna module for processing a plurality of channels of the digital broadcasting signal from the antenna module in parallel; and a transmission interface coupled to the plurality ... 03/08/07 - 20070053447 - Wireless rf link for uncompressed transmission of hdtv signals Systems and methods for wireless transmission of uncompressed HDTV signals are disclosed. In one embodiment, a method for transmitting an uncompressed HDTV signal over a wireless RF link, comprises providing a stream of regenerated data from the uncompressed HDTV signal; providing a first clock signal synchronized to said stream of ... 03/08/07 - 20070053446 - System and method for automatic adjustment of streaming video bit rate A system and method for automatically sets the encoding bit-rate across a network. The method includes encoding an original media stream with an encoding bit rate having an adjustable rate, transmitting the encoded media stream to a receiver, monitoring a throughput of the encoded media stream, computing an adjustment to ... 02/15/07 - 20070036230 - Transmitter for operating multiple devices A transmitter that is programmable to transmit one or more identification or device codes, using one or more transmission formats, at one or more transmission frequencies to control one or more respective devices. In one embodiment, the transmitter includes a controller and memory for storing transmission values and corresponding transmission ... 02/15/07 - 20070036229 - Wideband-narrowband telecommunication Here is described a method, a near end telecommunications terminal and a computer executable software code which allow to perform a telecommunications with a far end telecommunications terminal providing the option of applying a narrowband encoding technique without loosing the benefit of a wideband encoding technique. This is achieved after ... 01/25/07 - 20070019745 - Recovery of network element configuration A method is described for recovering corrupted configuration information stored in a recovering network element of a telecommunication network. The network includes neighbor network elements storing configuration information correlated to the configuration information stored in the recovering network element. The method includes the transmission to the recovering network element of ... 12/14/06 - 20060280254 - In-place transformations with applications to encoding and decoding various classes of codes In an encoder for encoding symbols of data using a computing device having memory constraints, a method of performing a transformation comprising loading a source block into memory of the computing device, performing an intermediate transformation of less than all of the source block, then replacing a part of the ... 12/07/06 - 20060274838 - Agile rf band ofdm spread spectrum and cross-correlated systems Agile Radio Frequency (RF) band selectable systems and circuits process and provide selection of baseband filtered Orthogonal Frequency Division Multiplexed (OFDM) modulated signals, of spread spectrum (SS) modulated signals and of baseband in-phase (I) and quadrature-phase (Q) shaped and or filtered baseband cross-correlated and modulated signals. A selector selects one ... 11/23/06 - 20060262867 - Data communications system and data communications method A data communications system which communicates data via a data communications network, includes: an information extraction unit configured to extract an extraction target from received data; an comparison information generator/transmitter unit configured to generate and transmit comparison information including the extraction target extracted by the information extraction unit; a comparison ... 11/23/06 - 20060262866 - Satellite communications systems and methods employing single and multiple sinewave modulation and demodulation techniques A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range ... 10/26/06 - 20060239363 - Method for providing service and rate negotiation in a mobile communication system A method and apparatus for negotiating service configuration in a digital communication system is disclosed. In an exemplary embodiment the service negotiation system is implemented in a wireless spread spectrum communication system. The service configuration comprises data rates, frame formats and types of services. Types of service may include speech ... 10/26/06 - 20060239362 - Transmitting and receiving arrangement with a channel-oriented link A transmitting and receiving arrangement as well as a method for transmission of monitoring and/or payload data in a transmitting and receiving arrangement for a wirefree communications system has a device which processes baseband for processing digital signals to form a baseband signal and a device which processes radio frequency ... 10/19/06 - 20060233267 - Radio frequency communications systems and methods employing single and multiple sinewave modulation and demodulation techniques A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range ... 10/19/06 - 20060233266 - Content processing device, content transmitting device, content receiving device, content distribution system, content synchronization program, and recording medium On a transmission-side, a time information generating section generates transmission-side time information based on information about a characteristic point in a waveform of an AC voltage supplied from an AC power supply. The content processing section adds the transmission-side time information to predetermined content. The communicating section transmits, to another ... 10/19/06 - 20060233265 - Joint feed-forward and feedback design for wireless communication systems A first method comprises determining a condition of a buffer in a transmitter; using the condition, determining information corresponding to the condition; and communicating the information to a receiver. A second method is disclosed comprising receiving first information corresponding to a condition of a buffer in a transmitter; determining channel ... 10/12/06 - 20060227885 - Receiver based saturation estimator A processor-implemented method of estimating the saturation level of a transmitter from a transmitted communication signal received from the transmitter comprises generating a received data signal from the transmitted communication signal received from the transmitter, generating a transmitted data signal from the received data signal that corresponds to the actual ... 10/05/06 - 20060222090 - System and method for coding and decoding information signals A system and method for coding and decoding an information signal sent through a communication system. The system includes: an encoder for encoding the information signal without adding additional information and for sending an encoded information signal; and a soft bit decoder including a-priori information related to the communication system ... 10/05/06 - 20060222089 - System for multiplexing independent signals A system for multiplexing multiple independent signals includes a transmitter, interconnecting medium, and a receiver. The transmitter encodes a waveform with first and second pieces of information for transmission across the interconnecting medium. The receiver determines the first and second pieces of information using the duty cycle and frequency of ... 10/05/06 - 20060222088 - Method of controlling digital image processing apparatus for convenient communication, and digital image processing apparatus using the method Provided is a method of controlling a digital image processing apparatus that communicates with a device selected by a user from among a plurality of devices. The method includes: displaying a list of the plurality of devices when a cable connect signal for the communication with the selected device is ... 10/05/06 - 20060222087 - Methods and systems for handling underflow and overflow in a software defined radio Systems and methods for handling buffer overflows and underflows in a software defined radio are presented. A communications system comprises one or more radio head interface modules and a call processing software module. The radio head interface modules are adapted to communicate with the call processing software module. The call ... 09/28/06 - 20060215772 - Communication system, transmitting device, receiving device, and communication device A communication system for transmitting and receiving a send data item is disclosed that comprises a transmitting device and a receiving device. The transmitting device includes a data generating unit to generate a data item by modulating the send data item, an impulse generating unit to generate an impulse corresponding ... 09/21/06 - 20060209970 - Adaptive transmission rate communication system A method is disclosed by which the data rate of the transmission on a communications link is adjusted according to the underlying channel conditions based on a fast Layer-1 feedback Channel Quality Indicator (CQI) control signal received on the return channel. The method enables the system to transmit a data ... 09/21/06 - 20060209969 - Digital signal transmission system and method, transmission apparatus and method, and reception apparatus and method The present invention relates to a digital signal transmission system and method, a transmission apparatus and method, and a reception apparatus and method that can reproduce an audio reference clock of a plurality of different frequencies from a video reference clock. A pixel clock is divided by a divider 51 ... 09/07/06 - 20060198448 - Techniques to manage wireless connections A system, apparatus, method and article to manage wireless connections are described. The apparatus may include a connection management module to automatically form a first connection between a first mobile device and a second mobile device, and a second connection between the second mobile device and a fixed device, wherein ... 08/24/06 - 20060188030 - System and method for shifting data bits multiple times per clock cycle A system and method are used to allow for phase rotator control signals to be produced that rotate bits in the signals more than one step per clock cycle. This can be done through the following operation. First and second data signals that include a plurality of data bits are ... 08/24/06 - 20060188029 - Sensor array with amplitude modulated output signal A sensing device in the form of a sensing array includes sensing elements on a first integrated circuit and means for processing the signals on a second integrated circuit. The output of the sensing elements is sampled, modulated on to a carrier signal and transferred from the first to second ... 08/17/06 - 20060182188 - Radio integrated circuit A radio LSI is provided that is not to cause a delay in sending acknowledgement data. A latch circuit provided in a sending/receiving section latches frame control information out of data being received. A decoder decodes the frame control information to decode a data length and structure of an address ... 08/03/06 - 20060171478 - Dual loop signal quality based link adaptation The invention relates to a method, a device and a system for adapting a communications link based on a quality estimate for a signal transmitted via the communications link. The method comprises receiving and demodulating the transmitted signal, assessing the demodulated signal to derive a first estimate for the signal ... 07/13/06 - 20060153308 - Method and system for dynamic interleaver adaptation scheme in vdsl The present invention provides a method and apparatus for a new interleaver adaptation scheme that achieves “error free” and zero delay (interleaving-triangular) or near zero delay variation (interleaving-GCI), and with easier implementation but no additional memory required. The dummy insertion methods and systems embodiments of the invention provide an effective ... 06/29/06 - 20060140286 - Electric power switching apparatus providing reduced degree of noise interference with radio communication In an electric power switching apparatus a control circuit generates a switching control signal, for controlling successive current switching operations, as a of succession of pulse period patterns with each pulse period pattern made up of one or more successive pulses each having an identical pulse period, and with successive ... 06/29/06 - 20060140285 - Digital filter circuit and method for blocking a transmission line reflection signal A digital blocking filter (120) and filtering method are provided for a device (100) receiving signals from a transmission line. The transmission line, which may comprise part of a complex bus system, is incompletely terminated, thereby resulting in a reflection signal within the line with transmission of a signal. The ... 06/15/06 - 20060126746 - Apparatus and method for presenting a modulated output signal at an output locus An apparatus that presents an output signal that is modulated by input signal includes: (a) A signal source providing a signal at a reference frequency. (b) A frequency comparer coupled with the signal source and the output signal for comparing the extant output signal frequency with the reference frequency and ... 06/08/06 - 20060120466 - Editing system, editing controlling apparatus, and editing controlling method A splicer/transcoder 21 interfaces with a material archiver/server using a stream. The splicer/transcoder 21 interfaces with an editor and switcher 22 using a base band signal. In a predetermined region including at least an edit point, a transcoding process is performed. In an input stream, two programs to be edited ... 06/01/06 - 20060115009 - Signal transmitting and receiving device and signal transmitting and receiving method A signal transmitting and receiving device and a signal transmitting and receiving method which can reduce power consumption in a terminal device in a standby state in an optical and electric communication system. The signal transmitting and receiving device is for transmitting and receiving an information signal through a predetermined ... 05/11/06 - 20060098746 - Multi-channel time-reversal receivers for multi and 1-bit implementations A communication system for transmitting a signal through a channel medium comprising digitizing the signal, time-reversing the digitized signal, and transmitting the signal through the channel medium. In one embodiment a transmitter is adapted to transmit the signal, a multiplicity of receivers are adapted to receive the signal, a digitizer ... 05/11/06 - 20060098745 - Apparatus and method for evaluating data transmission The present invention discloses an apparatus for evaluating a transmission quality of data display system and its related method. The method comprises: mixing at least one pattern in a first signal of an image signal to produce a mixed signal in the transmitter, wherein said pattern is known to said ... 05/04/06 - 20060093049 - Dual antenna communication methods and systems A dual antenna transmitter includes a diversity encoding module that receives a data stream and provides a pair of encoded data streams selected to cause generation of overlapping symbols that provide substantially constant signal power to a receiver when the first and second antennas are unobstructed from the receiver. The ... 05/04/06 - 20060093048 - Partial spectral loss concealment in transform codecs The invention concerns a frequency-domain error concealment technique for information that is represented, on a frame-by-frame basis, by coding coefficients. The basic idea is to conceal an erroneous coding coefficient by exploiting coding coefficient correlation in both time and frequency. The technique is applicable to any information, such as audio, ... 04/20/06 - 20060083320 - Demodulation of multiple signals A demodulation system for receiving and demodulating multiple modulated signals, including a first modulated signal having a first bit rate and/or a first modulation format and a second modulated signal having a second bit rate and/or a second modulation format. The demodulator demodulating the first modulation format modulated signal provides ... 04/20/06 - 20060083319 - Blind synchronization and demodulation Techniques are described that provide inter-symbol interference—(ISI) and multi-user interference—(MUI) resilient blind timing synchronization and low complexity demodulation in wireless communication systems. A nonzero mean symbol is transmitted with a predetermined period in a stream of zero mean symbols during a synchronization phase. Only nonzero mean symbols are transmitted outside ... 03/16/06 - 20060056523 - Device and process for adjusting the bit rate of a stream of contents and associated products The present invention relates to a device and a process for adjusting the bit rate of a stream of contents as a function of processing capabilities of at least one receiver. These contents are transmitted by a sender to the receiver according to a communication protocol providing for a return ... 03/09/06 - 20060050798 - Apparatus, system, and method for managing transmission power in a wireless communication system An apparatus, system, and method efficiently manage transmission power in a user equipment (UE) device by maintaining and applying an authorized power level to determine a transmission power level after a power limited transmission and before a new power control command has been received. The UE device maintains the authorized ... 03/02/06 - 20060045191 - Parameter encoding for an improved atsc dtv system Transmission of a digital television signal conveys data parameters along with the encoder data that are utilized by the receiver in equalization and in decoding the encoded data. Leveraging the existing digital television standard data formatting, parameters are split between the two fields of a frame of the interlaced signal. ... 02/02/06 - 20060023797 - Signal transmitting/receiving system and method, signal transmitting apparatus and method, signal processing apparatus and method, recording medium, and program A signal transmitting/receiving system and method, signal transmitting apparatus and method, signal processing apparatus and method, recording medium, and program are provided. A signal transmitting/receiving system includes a transmitter configured to transmit signals; and a receiver configured to receive the signals transmitted from the transmitter. The transmitter transmits signals using ... 01/26/06 - 20060018389 - Delta modulation for channel feedback in transmit diversity wireless communication systems A method is described herein for reducing the number of feedback bits needed to send channel state information over a feedback channel from a receiving unit (e.g., mobile terminal, base station) to a transmitter unit (e.g., base station, mobile terminal) in a wireless communication system. In the embodiment, the receiver ... 01/19/06 - 20060013324 - Device for processing signals in a mobile station The device for processing signals may be designed as a transmitting and receiving arrangement or exclusively as a receiving arrangement, and has a baseband component and a radiofrequency component. The interface between the baseband component and the radiofrequency component for the reception path is realized by an exclusively digital interface ... 01/05/06 - 20060002484 - Communication system and receiving method A receiving apparatus in a communication system in which when a systematically encoded signal cannot be decoded correctly on a receiving side, the signal is retransmitted from a transmitting side. The receiving apparatus combines stored data, which has been generated based upon data already received, and newly received data, decides ... 12/29/05 - 20050286647 - Communication timing control method and apparatus, node, and communication system Each node in a communication system transmits and receives state variable signals indicating internal node states or timings. A single node may transmit two or more differently phased series of state variable signals. Neighboring nodes interact by adjusting the timing phase at which they transmit each series of state variable ... 12/29/05 - 20050286646 - Wireless control system and method thereof A wireless control system and a method for controlling devices (e.g., luminaires, dimmers, effects devices, stepper motors, and the like) used in entertainment lighting applications is disclosed. Embodiments disclose a modular transceiver utilizing a wireless broadcasting transmission technique and a wireless control system where an interface between a controller and ... 12/22/05 - 20050281344 - System and method for detecting ingress in a signal transmission system A system and method for detecting ingress on shared media is presented. In one embodiment, among others, an input signal is selectively attenuated at each source site using a pseudo-random pattern, thereby amplitude modulating at low level the signal in a pseudo-random manner. Each encoded signal from each of the ... 12/08/05 - 20050271150 - Digital modulation system and method A digital modulation system and method is provided. The present invention employs a communication frame that includes a synchronization section. In addition to providing synchronization function(s), one embodiment of the present invention modulates, or encodes data onto the synchronization section. By using the synchronization section to carry additional data, the ... 12/01/05 - 20050265463 - Sequence detection by multi-valued coding and creation of multi-code sequences Methods of coding and correlating sequences are disclosed. The methods of coding and correlating are applied to binary sequences to convert these into multi-value sequences to improve the ability to recognize a sequence. Received sequences may contain errors. Coding methods and lengths of coding runs to improve detection and rejection ... 11/03/05 - 20050243936 - Method and system for determining user location in a wireless communication network In a wireless communication network, the location of an addressable receiver relative to the locations of a plurality of addressable sources of electromagnetic radiation is found using probabilistic models of the signal strength measured at the addressable receiver. The inventive method provides location determination on a finer spatial scale than ... 11/03/05 - 20050243935 - Passive data carrier with signal evaluation means for evaluating information of a self-clocking signal A data carrier (2) that is developed for contactless receiving of a signal, wherein the data carrier (2) can be supplied with energy and information by the signal, provides data carrier transmission means (12) for transmitting the signal and signal evaluation means (17), which, with energy input, are developed to ... 10/20/05 - 20050232369 - Method and apparatus for wireless data transmission A method and apparatus for wireless data transmission between a base station and one or more, in particular, passive and/or backscatter-based transponders, in which the base station modulates a carrier signal with a modulation signal, to generate synchronization markers, and transmits the modulated carrier signal. Whereby, a frequency of the ... 10/20/05 - 20050232368 - Single and multiple sinewave modulation and demodulation techniques, apparatus, and communications systems A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range ... 10/13/05 - 20050226340 - Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacturre The invention relates to a system for electromagnetic processing of an input wave involving the steps of receiving a modified signal derived from two or more signals that represent the input wave when combined; and regulating the modified signal using a digital signal containing at least one characteristic of the ... 10/06/05 - 20050220198 - Apparatus and method of controlling a physical layer of a communication device Embodiments of the invention describe a method and device for controlling a physical layer of a communication device to operate in one of three modes of communication. In a first mode, the device is able to demodulate frames of a Complimentary Code Keying (CCK) modulation type. In a second mode, ... 10/06/05 - 20050220197 - Coding method and decoding method The present invention allows two different block codes to be encoded by a substantially one-type encoding section. A first-point-fixed encoding section 21 divides m-bit data into a first-half code and a second-half code, and encodes them to convert to an n-bit provisional code with the start-point state of the code ... 09/29/05 - 20050213675 - Bandwidth-efficient modulation in communication systems A transmitter of digital data includes a modulator with an input for a carrier signal and an input for a first stream of control symbols. The modulator modulates the carrier signal with a second stream of symbols produced by the modulator. Each symbol of the second stream has a value ... 09/29/05 - 20050213674 - Radio communication method and radio communication apparatus using adaptive modulation system A propagation path estimator in a terminal station detects an average RSSI value for a downlink channel, and notifies a base station of the detected average RSSI value. The base station in turn receives the average RSSI value for the downlink channel from the terminal station, and detects an average ... 09/29/05 - 20050213673 - Method for demodulating uwb pulse sequences encoded according to an on-off keying modulation scheme The present invention relates to a method for transmitting data in the form of at least one pulse sequence Tsgk (for k=1 to K). The method according to the invention includes at least one symbol decoding step in the course of which at least one modulation value Pwk representative of ... 08/25/05 - 20050185722 - Data transmission method, data reception method, transmission device and reception device using the same, and communication system using the same When data is transmitted on a burst basis, a symbol having a higher modulation level is inserted into parts of a burst on a symbol basis and this burst is transmitted. When the data including this burst is received on a burst basis, it is determined which symbol positions are ... 08/11/05 - 20050175111 - Broadband system models A method of concatenating a plurality of narrowband frequency-domain models of a linear time-invariant (LTI) system, each model being descriptive of the system's operational characteristics over a different respective frequency range, to derive a single broadband model that describes the system's operational characteristics over the total frequency range encompassed by ... 08/04/05 - 20050169391 - Radio communications system using adaptive modulation, radio transmission apparatus and radio receiving apparatus A radio communications system for performing communications based on an adaptive modulation by selecting one MCS from a set of MCSs each comprising a combination of a modulation scheme and a coding scheme which are ranked according to a transmission rate, the radio communications system comprising a change unit to ... 08/04/05 - 20050169390 - Data processing apparatus and method and encoding device A data processing apparatus able to start decoding at a timing earlier than the conventional timing and able to reduce the storage capacity required for a storing means for storing the encoded data until a decoding side decodes the input encoded data in comparison with the conventional storage capacity, which ... 08/04/05 - 20050169389 - Increased user capacity ultra wideband (uwb) signal formatting scheme A method for ultra wideband (UWB) communication in which UWB pulses are transmitted to multiple users during a single time interval used in a time division multiple access (TDMA) system. In one disclosed form of the invention, multiple subintervals or sub-divisions of each TDMA time interval are allocated to the ... 08/04/05 - 20050169388 - Increased ultra wideband (uwb) user capacity transmitter utilizing time and frequency reuse approaches An ultra wideband (UWB) communication system and method for its use, allowing multiple users to communicate with the system without significant interference. The system includes multiple element antenna array, through which UWB pulses are transmitted to selected multiple users, by means of a selected combination of spatial multiplexing, frequency reuse ... 07/28/05 - 20050163234 - Partial spectral loss concealment in transform codecs The invention concerns a frequency-domain error concealment technique for information that is represented, on a frame-by-frame basis, by coding coefficients. The basic idea is to conceal an erroneous coding coefficient by exploiting coding coefficient correlation in both time and frequency. The technique is applicable to any information, such as audio, ... 07/14/05 - 20050152462 - Transmitting and receiving apparatus capable of the suppression of the microphonic noise in digital transmission system A transmitting and receiving apparatus including a modulating circuit for modulating an input digital data; a first frequency converting circuit for converting a signal output from the modulating circuit into a signal of a predetermined frequency; an amplifying/branching circuit for amplifying and branching a signal output from the first frequency ... 07/14/05 - 20050152461 - Digital data demodulator, digital data modulator, and digital data modulator-demodulator A digital data demodulator which can reduce a loss of decodable digital data, and increase capability of reproducing digital data inputted through a transmission line even when an error occurs in the transmission line. In the digital data demodulator, a specific pattern detector (113) detects a specific pattern to be ... 07/07/05 - 20050147175 - Stream data communication system A stream data communication system includes a stream data transmitter and a stream data receiver. The stream data transmitter includes: a first reference waveform receiving unit that receives a reference waveform; a first reference clock generation unit that generates a first reference clock based on the reference waveform; and a ... 06/23/05 - 20050135491 - Ultra-wideband communication system and method The present invention provides systems and methods for communication between ultra-wideband (UWB) devices. In general, the UWB device may characterize the attenuation, and other characteristics of the communication environment. Using these characteristics the UWB device can adapt various communication parameters to improve the communication quality. The UWB device may use ... 06/16/05 - 20050129134 - Low wander timing generation and recovery The present invention teaches a variety of timing generation and recovery schemes for providing high precision clock synchronization in cascaded communications systems where each point of communication has a unique clock. To accomplish the high precision, one embodiment of the present invention teaches quantizing information related to phase relation between ... ### FreshPatents.com Support |