Coded data generation or conversion inventions 12/05

20050285760 - Typing practice apparatus, typing practice method, and typing practice program: A finger detector is worn on a finger of a player. When a key on a keyboard is pressed down, a pressure sensor of the finger detector sends a pressure detection signal to a PC main body, and the finger used to press down the key is detected based on...

20050285762 - Reproduction apparatus: A reproduction apparatus includes a reproduction unit that reproduces plurality of information data encoded using mutually different encoding systems from a recording medium, a program storage unit that stores multiple kinds of decoding programs corresponding to the different encoding systems, a program loading memory into which a part of the...

20050285761 - System and method for encoding high density geometric symbol set: A system and related techniques provide a platform for encoding high density geometric symbol sets, for example a triangular barcode-type of encoding which may be used to encode drivers' licenses, biometric IDs, passports, or other transaction or identification media. According to embodiments of the invention in one regard, an inkjet,...

20050285763 - Hybrid tuning circuit for continuous-time sigma-delta analog-to-digital converter: A hybrid tuning circuit is used consisting of a digital finite state machine and an analog tuning circuit to effectively keep the RC product of the continuous time integrator constant across process, temperature, supply, and sampling rate variations. Since the implementation is continuous, the tracking is more accurate than traditional...

20050285766 - Complex band-pass delta sigma ad modulator for use in ad converter circuit: A complex band-pass ΔΣ AD modulator is provided with a subtracter device, a complex band-pass filter, first and second AD converters, and first and second DA converters. The first and second DA converters and first and second logic circuits are sandwiched by first and second multiplexers. At a first timing...

20050285765 - Delta-sigma modulator and delta-sigma modulation method: A delta-sigma modulator and delta-sigma modulation method according to the present invention are capable of ensuring a stable 1-bit signal having less distortion at the transition time from an audio signal reproduction state to soundless state while maintaining high sound quality during reproduction of an audio signal representing music or...

20050285764 - Method and system for multi-rate lattice vector quantization of a signal: The present invention relates to a method and system for multi-rate lattice vector quantization of a source vector x representing a frame from a source signal to be used, for example, in digital transmission and storage systems. The multi-rate lattice quantization encoding method comprises the steps of associating to x...

20050285768 - Da converter circuit provided with da converter of segment switched capacitor type: A DA converter circuit is provided for use in a ΔΣ AD modulator. The DA converter circuit includes a DA converter of segment switched capacitor type. The DA converter includes an operational amplifier, capacitors as connected in parallel to each other to supply electric charges to the operational amplifier, an...

20050285767 - Digital-to-analog converter with switched capacitor network: A digital-to-analog converter generates a monotonic sequence of reference voltages and selects an arbitrary pair of reference voltages, adjacent in the monotonic sequence, according to digital input. A switching network charges a capacitor according to the difference between the two selected reference voltages, then connects another capacitor to the first...

20050285769 - Analog-to-digital converter and method of analog-to-digital conversion: The A/D converter has first and second PPDC circuits (pulse-phase-difference coding circuits). The first PPDC circuit performs A/D conversions on the reference voltage and on the voltage signal amplified by an amplifier in an alternating sequence, the amplifier using the reference voltage as a potential base thereof. The second PPDC...

20050285770 - High-speed current mode analog to digital converter: A High-speed Current Mode Analog to Digital Converter is disclosed. The ADC is high-speed, yet is manufacturable at a relatively low cost. The device processes an analog signal through a plurality of successive approximation ADC subcircuits cooperatively arranged to operate in parallel, time-interleaved fashion. The ADC subcircuits operate in current...

20050280560 - Key interface apparatus for easy key input and electronic device adaptable to the use of the same: A key interface apparatus is provided in a limited space of a compact device for entering numerals, characters, and signs so that a desired key can be correctly selected in an easier manner. The apparatus includes at least one key which is recognized as at least one identical key value...

20050280559 - Method and device for emitting pulses on an electricity distribution network: A method for emitting a predetermined series of pulses on an electricity distribution network carrying a determined voltage includes linking an electric element to the network by a switch and supplying a control signal to the switch. The switch is driven by the control signal, such that high frequency spurious...

20050280561 - Self-powered switch initiation system: A self-powered switching system using electromechanical generators generates power for activation of a latching relay. The electromechanical generators comprise electroactive elements or magnetic based microgenerators that may be mechanically actuated to generate electrical power. The associated signal generation circuitry may be coupled to a transmitter or transceiver for sending and/or...

20050280562 - Device and method for enhancing resolution of digital encoder: The present invention provides a device and a method for enhancing the resolution of the digital signal of a digital encoder. The device comprises a digital encoder which outputs a fundamental position signal. Beside, the device comprises a selected integral circuit which receives the fundamental position signal to produce an...

20050280563 - Encoder and signal adjustment method for the same: An encoder includes: a detector; an A/D converter for performing A/D conversion for a two-phase analog signal output from the detector; an error correction circuit for correcting an error of the two-phase analog signal; an interpolation circuit for performing interpolation from the corrected result of A/D conversion; a memory for...

20050280564 - Digital sampling rate converter for compensating for drop of in-band signal: Disclosed is a digital sampling rate converter for compensating for a drop of an in-band signal, the digital sampling rate converter including a CIC (Cascaded Integrator-Comb) decimator for performing a decimation operation at a first decimation ratio based on an overall decimation ratio, for an input signal; a sub-decimator for...

20050280565 - Analog to digital converter calibration via synchronous demodulation: A technique for dynamically calibrating a successive approximation charge to digital converter by toggling at least some portion of the converter between two predetermined states, with the design goal of balancing the voltage and/or charge that is output in the two states. The two states are chosen such that they...

20050280566 - Analog-to-digital conversion system, correction circuit, and correction method: Disclosed is an interleaved ADC comprising first and second component ADCs that use pipelined ADCs extracts an image component, which is generated by a gain error, with the use of a band pass filter for correcting the gain error so that the power of the image component is minimized....

20050280567 - Digital-analog converter circuit: Provided is a digital-analog converter circuit that enables, for example, securing an improved accurate analog signal voltage and preventing increase in the circuit size. A first node of each individual unit is connected to a middle node of a one-order higher unit than a unit having that first node. A...

20050280569 - Analog baseband processor and method of processing analog baseband for use in multimode communication system: Analog baseband processors and methods of processing an analog baseband for use in a multmode communication device are disclosed. The analog baseband processor includes a single (shared) analog-to-digital converter, and at least a first receiver digital front end and a second receiver digital front end. The analog baseband processor may...

20050280568 - Flash adc receiver with reduced errors: Symbol decoding errors at a receiver utilising a flash analog to digital converter (ADC) can be reduced by adjusting a reference voltage level of the ADC where a decoding error rate at the reference voltage level exceeds a threshold....

20050280570 - Resolver/digital converter and control apparatus using the same: This resolver/digital converter has a resolver, a resolver/digital converting portion and an exciting signal generator. The exciting signal generated from the exciting signal generator is supplied to the resolver, and the resolver signals produced from the resolver are supplied to the resolver/digital converter. This resolver/digital converter further has a conversion...

20050275564 - Absolute position encoder: A transducer, a method and a coding pattern for determining a kinematic measurable variable are disclosed. A transducer comprises a first device part which is moveable in or through a corresponding device for oil or natural gas production and a second device part which is stationary relative to said first...

20050275565 - Magnetizable polymeric compositions: A magnetizable composition comprises a phase made of a thermoplastic polymer material, a second phase containing a cured elastomeric material, and a hard magnetic material dispersed in both the thermoplastic and the elastomeric phases. The phases are blended into a homogenous mixture suitable for use in fabricating shaped articles. The...

20050275566 - System and method for transferring content: A system and method for transferring content. Embodiments of the invention may include receiving a request for a content item; downloading data identifying the content item; and downloading data representing the content item. The content item may be placed after the data identifying the content item. A portion of the...

20050275567 - Flexible touch-sense switch: A flexible touch-sense switch includes a force sensitive composite and an at least one proximity sensor. The force sensitive composite includes a plurality of force sensors disposed between a first layer and a second layer of polymide film defining a displacement region. The at least one proximity sensor generates an...

20050275568 - Pulse width modulation based digital incremental encoder: A digital incremental encoder for generating an output signal indicative of an angular position, a direction of rotation, and a speed of rotation of a shaft. A counter receives a PWM signal indicative of the angular position of the shaft and a clock signal from an angular position sensor, and...

20050275569 - Data modulating method and apparatus, data demodulating method and apparatus, and code arranging method: In a data demodulating method and apparatus, and a code arranging method, a multiplexer multiplexes an input data stream divided by a predetermined length into a plurality of types of pseudo random data streams using multiplexed information of predetermined bits by applying a predetermined multiplexing method to each of the...

20050275570 - Parallel leading bit detection for exp-golomb decoding: A system may include a number of detectors and a processor. Each detector may be arranged to receive a different number of N leading bits. Each detector may output an affirmative feedback bit if the different number of N leading bits matches a respective predetermined pattern. The processor may provide...

20050275571 - Method and apparatus for operating a delta sigma adc circuit: An analog-to-digital converter (ADC) system that converts an analog input signal into a digital output circuit includes a first stage analog-to-digital converter circuit coupled with a second stage analog-to-digital converter circuit. The first stage analog-to-digital converter circuit includes a quantizer, comparator, integrator, and a feedback digital-to-analog converter (DAC). The second...

20050275573 - Method and apparatus for joint source-channel map decoding: A method for error correction that includes receiving a bitstream, the bitstream comprising one or more bits, determining if the bitstream has one or more corrupt bits, determining one or more hypotheses representing an error pattern, and assigning a probability to each of the hypotheses, wherein the probability is determined...

20050275572 - Method and apparatus for start-up of analog-to-digital converters: An analog-to-digital (ADC) converter circuit that converts an analog input signal into a digital output circuit includes a calibration coefficient computation circuit for computing calibration coefficients of a calibration filter. The calibration coefficient computation circuit includes a switching device adapted to switch the analog input signal delivered to the ADC...

20050275575 - Integrator circuit: An integrator circuit has an integrator unit performed to generate an integrated signal from a modulated input signal. Additionally, the integrator circuit has an error feedback coupler connected to an output of the integrator unit and to an input of the integrator unit and formed to determine an error component...

20050275574 - Tri-state delta codec method and system: A delta modulation method and system is provided for processing signals in a digital communications system. The method quantizes an input signal using a tri-state quantizer into a quantized value selected from a set of three different quantized values including a low value, a middle value, and a high value....

20050275578 - Method and apparatus for an adc circuit with wider input signal swing: An analog-to-digital converter (ADC) system that converts an analog input signal into a digital output circuit uses a method of shaping a pseudo-random signal such that the ADC system can be used with input signals having wider swings. The ADC system also includes a quantizer having a comparator offset of...

20050275577 - Method and apparatus for operating a pipelined adc circuit: An analog-to-digital converter (ADC) circuit that converts an analog input signal into a digital output circuit includes a noise shaping first stage cascaded with a pipelined second stage. The first stage includes a sample-and-hold circuit and a first order modulator, where the first order modulator includes a noise shaping filter,...

20050275576 - Systems and methods for analog to digital conversion: Systems and methods for analog to digital conversion that may be implemented using a digital to analog converter (DAC) to provide negative feedback to at least Partially cancel one or more signals (e.g., one or more interfering signals present with one or more desired signals, one or more strong desired...

20050275579 - Pipeline a/d converter: The present invention provides a pipeline A/D converter having resolution, allowable conversion processing rate and power consumption satisfying the requests of a system incorporating the pipeline A/D converter. The pipeline A/D converter in accordance with the present invention comprises a control section for outputting a control signal according to the...

20050275580 - Double-sampled integrator system and method thereof: A double-sampled feedback integrator system includes a sampling module having multiple switched capacitors. The switched capacitors of the integrator system are opened and closed based upon a polarity of the signal input to the double-sampled feedback integrator system. The integrator system can be used in a sigma-delta converter. A sigma-delta...

20050275581 - Energy-autonomous electromechanical wireless switch: An energy-autonomous electromechanical wireless switch which has at least one transducer element for converting mechanical to electrical energy, and has at least one actuating panel for introducing the mechanical energy, and has at least one sensor for each actuating panel for detecting the switching command. At least one electronic system...

20050270182 - Contact detection sensor and contact detection method: A low-cost contact detection sensor and contact detection method for easily detecting a contact by a third party is provided. A contact detection sensor comprises an antireflection structure including structure elements having a predetermined shape which are put in an array periodically at a pitch smaller than a wavelength of...

20050270183 - Handheld electronic device with text disambiguation: A handheld electronic device includes a reduced QWERTY keyboard and is enabled with disambiguation software. The device provides output in the form of a default output and a number of variants. The output is based largely upon the frequency, i.e., the likelihood that a user intended a particular output, but...

20050270192 - Coding apparatus, program and data processing method: A coding apparatus, a program and a data processing method capable of attaining a high speed and a reduction of a computation amount in coding processing is provided, wherein coding portions for performing a left shift operation on a range and a lower limit value until the range exceeds a...

20050270190 - Copy protection of optical discs: Subversive DSV (SDSV) sequences of data symbols having a large absolute value of DSV are extremely valuable in the copy protection of optical discs as they can induce uncorrectable read errors. However, very few SDSV sequences of data symbols can be found in multimodal codes such as Eight-to-Sixteen Modulation (ESM)...

20050270185 - Decoding with memory in rfid system: RFID readers, RFID tags, software, and methods decode a signal received in an RFID system. From received data, a decoder determines a number of possible test series for the output. In one embodiment, the decoder uses a memory of a previous sample to derive a subsequent sample in the test...

20050270187 - Encoder interface: An encoder interface device that permits automatic discovery of an unknown encoder that is physically connected to the interface device, so as to enable correct operation. The device permits discovery of characteristics of an unknown encoder including the primary quadrature A and B channels, the index channel, and the active...

20050270191 - Mass spectrometry with selective ion filtration by digital thresholding: The methods described herein generally relate to characterization of large analytes, such as biomolecules, by molecular mass analysis. Specifically, the methods are directed to molecular mass analysis of singly- or multiply-charged ions by selective ion filtering carried out by a digital thresholding process....

20050270189 - Rfid readers and rfid tags communicating using extensible bit vectors: RFID system components, such as readers and tags, communicate by transmitting and receiving a wave that conveys a bit stream. Informing signals, such as special bits, are inserted in the stream between words. An informing signal indicates whether a certain word is the last word in the stream or not....

20050270186 - Specified index method for abstract syntax notation one encoding systems: This invention applies a specified index method for Abstract Syntax Notation One (ANS.1) encoding systems. Its procedure includes receiving input data, adding specified indices to the data and determining if the data consists of an omitted optional item or an omitted default item. If so, it modifies the specified index...

20050270184 - Tri-value decoder circuit and method: A tri-value decoder and method for decoding at least three states of an input signal are provided. An exemplary tri-value decoder and method can facilitate decoding of input signals without the use of threshold values and/or forcing a tri-state input signal to a mid-rail value for tri-state detection, and with...

20050270188 - V.42bis standalone hardware accelerator and architecture of construction: Methods and systems for on-chip processing of data are disclosed. Aspects of the method may include generating a plurality of data processing commands for data compression. A first string of characters may be encoded in one operating cycle utilizing the generated plurality of data processing commands for data compression. The...

20050270193 - Method and device for reducing the signal images at the output of a digital/analogue converter: Method and device for reducing the signal images at the output of a digital/analogue converter. In a method for reducing the signal images at the output of a digital/analogue converter, a frequency hopping clock generator provides a digital data signal whose data rate is varied according to a frequency hopping...

20050270194 - Coding information in integrated circuits: The present invention relates to a method for coding information in an electronic circuit and an electronic circuit for coding information, said circuit comprising at least two electrically coupled signal paths (X0, X1). The invention is based on the idea that cross-talk between two electrically coupled signal paths (X0, X1)...

20050270195 - Method and apparatus for encoding/decoding digital signal: A method and an apparatus for encoding/decoding a digital signal are provided. First, a digital input signal is transformed into samples to remove redundant information among signals. Then, a lookup table corresponding to a characteristic of the input signal is selected among a plurality of lookup tables that indicate different...

20050270196 - Auto-configuration to connect transmit and receive ports to corresponding ports on the other end irrespective of cable connection mis-match: An aspect of the present invention provides multiple switches in a transceiver, which enable pins provided for transmission and reception to be connected to either a transmit port or a receive port, as desired during operation. As a result, the transceiver can be auto-configured to connect the specific pin, on...

20050270198 - Circuit for current measurement and current monitoring: A circuit for current measurement and current monitoring in a motor vehicle is provided, with a measuring circuit with a first subtractor circuit, connected to a measuring resistor; an offset circuit, which is connected to the first subtractor circuit in such a way that a first output voltage of the...

20050270199 - Method for designing mixed signal integrated circuits and configurable synchronous digital noise emulator circuit: A method for designing an integrated circuit having analog and digital circuit portions is disclosed. The method involves providing an emulation circuit, which preferably comprises a number of gates equivalent to a number of gates in the digital circuit portion, affixing the emulation circuit on a test substrate together with...

20050270197 - Video signal processing system with a dynamic adc calibration loop and related methods: A video signal processing system with a dynamic calibration loop of an ADC comprises a calibration switch for transmitting signals according to a control signal; a reference switch module for transmitting reference voltages according to a plurality of control signals; a reference voltage generator coupled to the reference switch module...

20050270200 - Digital signal control using first order holds: A method is provided to reduce delay in signal processing of a digital control system. The method includes receiving outputs from a digital controller at a first frequency. A pre-load data value is then loaded into an accumulator register and output to a digital to analog converter (DAC). In one...

20050270202 - Analog-to-digital modulation: A supplied analog signal is modulated by comparing the supplied analog signal with a noise signal. As a result of each comparison, an output signal is generated having a first value if the supplied analog signal is greater than the noise signal and generating an output signal having a second...

20050270201 - Method for reducing dac resolution in multi-bit sigma delta analog-to digital converter (adc): A method for reducing the resolution of a digital-to-analog converter in a multi-bit sigma-delta ADC is described. With the addition of digital sigma-delta modulators in the feedback path of a sigma-delta ADC, the truncation errors between the digital word output of the multi-bit sigma-delta ADC to the DAC input can...

20050270203 - Nonlinear mapping in digital-to-analog and analog-to-digital converters: In a high-fidelity digital modulator, a mapper is provided to minimize quantization noise, jitter, and cross-talk between multiple digital-to-analog or analog-to-digital converters. The mapper receives a quantized level from a quantizer and maps the quantized level to an output sequence. The mapper includes a table defining multiple sequences corresponding to...

20050270205 - Da converter, data line driving circuit, electro-optical device, driving method thereof, and electronic apparatus: To simplify s configuration of a current mode DA converter. A data line driving circuit includes DA converting units U1 to Un. Each DA converting unit U1 to Un a voltage DA converting circuit for generating an analog voltage signal Sv based on image data, a V/I converting circuit for...

20050270206 - Data driving circuit for organic light emitting diode display: A data driving circuit and organic light emitting diode display, comprising a D/A converter, a switch unit, a first analog sampling storage circuit and a second analog sampling storage circuit. The first analog sampling storage circuit is controlled by a first signal for storing corresponding first analog transformed data in...

20050270207 - Data driving circuit, organic light emitting diode display utilizing the same, and driving method therefor: A data driving circuit and method for an organic light emitting diode display. Data lines transmit first digital data in a first cycle, and subsequent digital data in a second cycle. A D/A converter electrically connected to the data lines converts the first digital data to first analog data, and...

20050270209 - Digital to analog converter and display incorporating the same: A digital to analog converter is provided. The digital to analog converter comprises a digital data input, a decoder, a re-queuing circuit and a plurality of current cells. The digital data input receives a digital input data. The decoder decodes the digital input data and generates a decoded data. The...

20050270208 - Digital-to-analog converter (dac) circuits using different currents for calibration biasing and methods of operating same: A DAC circuit can include a plurality of current source circuits configured to operate responsive to respective different bias voltage signals and respective true and complementary binary digit signals....

20050270204 - Electronic device, a digital-to-analog converter, and a method of using the electronic device: In one embodiment, a D/A converter includes a D/A module and a first differential amplifier. The D/A module converts a digital signal to a first analog signal. The first differential amplifier amplifies the first analog signal from the D/A module to a second analog signal. In another embodiment, an electronic...

20050270215 - Analog digital converter having a function of dynamic adjustment corresponding to the state of the system: A DSP calculates time integration of the light amount received by a CCD, using an input image. Determination is made regarding whether or not the light amount is equal to or smaller than a predetermined threshold. In a case that the light amount is equal to or smaller than the...

20050270216 - Differential digital-to-analog converter: Briefly, in accordance with one embodiment of the invention, a differential digital-to-analog converter utilized in a transmitter path of a transceiver utilizes a differential R2R architecture. Such a differential digital-to-analog converter may be utilized in higher speed, lower power and higher resolution applications with a higher area efficiency, for example...

20050270210 - Disconnecting a time discrete circuit from a track-and-hold circuit in track mode: A system and method for an improved analog front-end system is disclosed. By coupling a switch to the output of a track-and-hold circuit and to the input of a time-discrete circuit, such as an analog-to-digital converter, the time-discrete circuit can be disconnected from the track-and-hold circuit during the track mode...

20050270212 - High-speed video signal processing system: A high-speed video signal processing system, which includes a reception end for receiving analog signals; a plurality of analog to digital converters coupled to the reception end for converting analog signals received from the reception end to digital signals according to control signals; and an interleaving controller coupled to the...

20050270214 - Loudspeaker control circuit: A loudspeaker control circuit includes a bit splitter, a complement module and a digital-to-analog converter. The bit splitter divides a data item representing an acoustic signal into a high order bit group and a low order bit group. The complement module determines a complement of at least one of the...

20050270213 - Method for converting a/d, and an a/d converting apparatus: An analog-to-digital converting method for converting an analog signal into a digital signal is provided, wherein the analog-to-digital converting method includes a measuring step of measuring a frequency characteristic of each of analog-to-digital converters in advance, a sampling step of sampling the analog signal, a Fourier transformation step of performing...

20050270211 - Two-dimension digital ratiometric decoder: A two-dimensional all-digital ratiometric decoder to analyze signals representative of state changes in a closed loop control system. In one embodiment, the two-dimensional digital ratiometric decoder comprises at least one selector circuit, a summation circuit, a difference circuit and a divider circuit. The at least one selector circuit is adapted...

20050270217 - Variable accuracy pipeline adc for wlan communications devices: A pipeline ADC (Analog to Digital Converter) unit is provided that has a first and a second multi-stage portion. The first multi-stage portion has a first plurality of converter stages for converting a first analog signal to a first digital signal having a first digital resolution. The second portion has...

20050264434 - Optical encoder: The invention relates to an apparatus, notably an X-ray apparatus, which comprises two components which are displaceable relative to one another. A position visualization unit is arranged on one component of the apparatus and the other component of the apparatus is provided with an image acquisition unit whose acquisition zone...

20050264435 - Sensor signal conditioning circuit: A sensor signal conditioning circuit and sensor system incorporating the same. In one embodiment, the signal conditioning circuit includes a DC-coupled detector that converts a sensor signal into a discrete level signal. An AC-coupled detector having a dynamic DC threshold input also converts the sensor signal into a discrete level...

20050264436 - Information processing apparatus: A sliding type portable telephone has: a first operation unit for receiving input operations from the user while the open/close unit is in a contracted state; a second operation unit for receiving input operations from the user while the open/close unit is in an extended state; and a control unit...

20050264437 - Authoring system, program, and authoring method: In an authoring system of the invention, generation of volume configuration information for a DVD-Video is performed in parallel with generation of volume configuration information for a BD-ROM. Each of the client apparatuses 21 through 23 generates a piece of volume configuration information for a DVD-Video based on a user...