Coded data generation or conversion inventions 04/06

20060087455 - Apparatus and method for improving resolution of optical encoder: The invention provides an interpolation apparatus for improving the resolution of an optical encoder. The optical encoder outputs an encoding signal, and the encoding signal corresponds to a first resolution. The interpolation apparatus comprises a comparing circuit and a lookup table circuit. The comparator receives the encoding signal and produces...

20060087458 - Apparatus and method for synchronizing an audio signal with a film: A device for synchronizing an audio signal with a film comprising frames, wherein each frame comprises an imprinted time code, includes means for detecting the imprinted time code for the sequence of frames in order to obtain a detected sequence of time codes. Further, a time code generator is provided...

20060087456 - Information additive code generator and decoder for communication systems: An encoder uses an input file of data and a key to produce an output symbol. An output symbol with key I is generated by determining a weight, W(I), for the output symbol to be generated, selecting W(I) of the input symbols associated with the output symbol according to a...

20060087457 - System and method for identifying and processing data within a data stream: A system involves encoding a video data stream. The system includes a first determinator for determining attributes associated with the video data stream and an encoder for receiving the attributes from the first determinator and encoding a stream header identifying stream syntax. The stream header is encoded in a markup...

20060087460 - Method of generating huffman code length information: Embodiments of a method of generating Huffman code length information are disclosed. In one such embodiment, a data structure is employed, although, of course, the invention is not limited in scope to the particular embodiments disclosed....

20060087459 - Reprogrammable bi-directional signal converter: A signal converter is comprised of a plurality of counters (“macro-counters”). In turn, each of the macro-counters is comprised of a plurality of single-bit counters (“micro-counters”) that are adapted to receive configuration data in the form of bit fields. The configuration data is comprised of data corresponding to a plurality...

20060087461 - System and method for spur cancellation: A system for spur cancellation comprises an input, an output, a memory, and a summer. A value corresponding to an energy level of a spur is stored in the memory. The summer is configured to receive an input signal from the input, to receive the value from the memory, to...

20060087463 - Error feedback structure for delta-sigma modulators with improved stability: An error feedback circuit includes a first summer receiving an analog input signal and a feedback signal and outputting a summed signal. A quantizer receives the summed signal and outputs a quantized output signal. A limiter receives the summed signal and outputs a limited summed signal. The limiter limits the...

20060087462 - Tester for a semiconductor device: A tester including a first module for testing a digital-to-analog conversion and a second module for testing an analog-to-digital conversion. The tester may include a controller for controlling operation of the first and second modules. The tester does not require a system bus, and modules may be swapped, added to...

20060087464 - Digital signal processing method, processing thereof, and recording medium containing the program: A sample sequence ΔS similar to a first or last sample sequence of the current frame is extracted from its samples SFC and concatenated, as an alternative sample sequence AS, to each of the front and back of the current frame, and the current frame with the alternative sample sequence...

20060087466 - Digital signal processor optimized for interpolation and decimation: A digital signal processor receives samples of a first digital signal which is to be decimated and samples of a second digital signal which is to be interpolated. A digital signal processing engine performs a decimation function on samples of the first digital signal and an interpolation function on samples...

20060087465 - Systems and methods for auto gain control in bi-cmos digital to analog converters: The accuracy of output power in a digital-to-analog converter (DAC) is critical in certain applications. When bi-CMOS technology is used to implement a DAC, a number of factors affect the gain accuracy of the DAC. The present invention provides a circuit architecture to reduce the variation in these factors to...

20060087468 - A/d conversion apparatus: An A/D conversion apparatus for converting an analog signal into a digital signal includes a successive approximation A/D converter receiving the analog signal and outputting high-order data of the digital signal, a flash A/D converter receiving the analog signal and outputting low-order data of the digital signal, and a coupling...

20060087467 - Analog-to-digital converter: A system and method for implementing an analog-to-digital converter (ADC). The ADC includes a converter for generating a timed pulse based on an analog signal and a control signal. The ADC also includes a timing analyzer for generating a digital signal based on the timed pulse. According to the system...

20060087469 - Analog-to-digital converting circuit and image processing circuit cyclically repeating ad conversion: A first AD converting part of an AD converter converts an input voltage into a digital value of a predetermined number of bits and output the digital value to a digital output circuit and a DA converting part. The DA converting part converts the digital value into an analog value....

20060087470 - High voltage level shifting by capacitive coupling: A circuit configuration which includes an input circuit referenced to one ground voltage and an output circuit referenced to another ground voltage capacitively coupled to the input circuit....

20060082473 - Apparatus and method for detecting key signals in a mobile communication terminal: A method for detecting a key input signal in a mobile communication terminal is disclosed. The terminal has a plurality of keys constituting a key matrix structure with rows, columns, and a switch for connecting one of the rows to one of the columns, and including pull-up resistors for maintaining...

20060082475 - Method, an apparatus and a storage medium for locating qr codes: The present application relates to a method, an apparatus and a storage medium for locating QR codes. For automatically locating a plurality of QR codes in image of any size, the invention provides an apparatus for locating at least one QR code in an image, comprising: characteristic ratio detection means...

20060082474 - Robust mode staggercasting with multiple delays for multi-resolution signals: A method and apparatus for staggercasting includes encoding a set of signals representing content such that each encoded signal, alone or in combination with other encoded signals, is capable of being decoded to produce a corresponding decoded signal. Each decoded signal has a reproduced quality which different from the reproduced...

20060082476 - Device and method for interfacing video devices over a fiber optic link: A system and method for interfacing video devices over a link where electronic digital video data having a quantity (n) of bits of parallel data transmitted electronically at a first clock rate (R1) is converted to a stream of electronic serial data that is transmitted a second clock rate (R2=R1×n)....

20060082478 - Memory device and method having data path with multiple prefetch i/o configurations: A memory device is operable in either a high mode or a low speed mode. In either mode 32 bits of data from each of two memory arrays are prefetched into respective sets of 32 flip-flops. In the high-speed mode, the prefetched data bits are transferred in parallel to 4...

20060082477 - Method and device for data transmission: A method for serially transmitting data between a first and a second station is provided, the first station unidirectionally transmitting at least two signals to the second station on two signal paths. In this method, a shift register is provided in each station, the two signal paths of the first...

20060082479 - Analog to digital converter with distortion correction: A system and method are disclosed for correcting for output distortion of an analog to digital converter, comprising: estimating the output distortion, providing an estimated distortion, and combining an output of the analog to digital converter with the estimated distortion to compensate for the output distortion. The compensating module for...

20060082481 - Analog signal sampling system and method having reduced average differential input current: A novel sampling system having a sampling device responsive to an analog input signal and a reference signal for providing corresponding charges. A switching circuit is provided to supply the input signal and the reference signal to the sampling device. The switching circuit is controlled to supply the input signal...

20060082480 - Analog signal sampling system and method having reduced average input current: A novel sampling system having a sampling device responsive to an analog input signal and a reference signal for providing corresponding charges. A switching circuit is provided to supply the input signal and the reference signal to the sampling device. The switching circuit is controlled to supply the input signal...

20060082482 - Reference buffer with dynamic current control: A method can allow a system to selectively control increasing of a bias source in a reference buffer or decreasing impedance looking into a output of the reference buffer for a temporary or selective time period, which can result in an increased overall efficiency of the system. The method can...

20060082483 - Digital-to-analog converter with secondary resistor string: 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. One of the selected reference voltages is supplied through a resistor and a switching device, connected in series, to the output terminal of the converter. The other...

20060082486 - Analog-to-digital converter with reduced average input current and reduced average reference current: Novel system and methodology for sampling analog input signals to reduce an average common-mode input current caused by unbalanced nodes of an input signal source. An analog-to-digital (A/D) conversion system for converting an analog input signal supplied by a signal source having first and second nodes may have a first...

20060082484 - Multi-mode analog to digital converter: A multi-mode analog to, digital converter (ADC). The novel ADC includes an input terminal for receiving an analog input signal; a plurality of processing stages, each processing stage adapted to generate an output signal from an input to that processing stage; and a mechanism for determining a mode of operation...

20060082485 - Semiconductor device with a/d converter: A semiconductor device includes a reference voltage generating section configured to generate a first reference voltage and a second reference voltage based on a voltage supplied from an external power supply; and an AD (analog/digital) conversion circuit operating based on the first reference voltage to generate an AD conversion signal...

20060082487 - Input data slicer: A method for slicing a differential input signal formed of first and second analog signals, including: receiving the first and second analog signals; adjusting direct current (DC) levels of the first and second analog signals according to a first voltage; comparing voltage difference between the first and second analog signals...

20060077072 - Encoding techniques for a capacitance-based sensor: One embodiment of the present invention comprises a sensor with a face having several tracks spaced apart from one another. One of these tracks has a first electrode and a second electrode separated by an electrically nonconductive gap. Also included is a detection device extending across the tracks to receive...

20060077073 - Input unit having three-dimensionally arranged keys for electronic device: An input unit having three-dimensionally arranged keys for an electronic device is proposed. The input unit has at least a plurality of keys, the keys are classified into a plurality of groups and respectively arranged on different planes of the input unit according to the operating functions and properties, so...

20060077074 - Universal mobile keyboard: A versatile and mobile keyboard and a highly energy efficient keyboard scanning method are provided. The keyboard may be used with a variety of mobile devices such as PDAs, cellular phones, and tablet PCs, through various interfaces such as an IR, USB, or Bluetooth™ interface. In particular, an IR head...

20060077078 - Command user interface with programmable decoder: A command user interface with via mask programmability includes a decoder with transistors selectively coupleable to one of an input or its complement. This is accomplished in one way by making vias in an appropriate location to allow interconnection of the appropriate contact and the gate of the transistor....

20060077077 - Data driving apparatus in a current driving type display device: The present invention relates to a data driving apparatus for driving a current driving display device. A current output device of the data driving apparatus sequentially applies data signals to data lines. The data signals correspond to analog converted output currents. The current output device may include an analog output...

20060077076 - Encoding apparatus and encoding method: A coding apparatus capable of preventing deterioration in demodulation performance without increasing interfering power. In the apparatus, a turbo coding section (100) performs turbo coding on transmission data, and outputs systematic bits and parity bits. A selecting section (200) selects either of two parity bit sequences output from the turbo...

20060077075 - Servo system, apparatus comprising a servo system, sigma delta modulator, and integrated circuitcomprising a sigma delta modulator: A servo system comprising an analog sigma delta modulator for generating a normalized digital error correction signal from first and second analog control signals. The sigma delta modulator comprises an analog low-pass filter, a quantizer delivering the digital error correction signal and a multiplying DA-converter in feedback arrangement between the...

20060077079 - Use of multiple data comparators in parallel to trigger an oscilloscope on a pattern found in a serial data stream: A method and system are provided for determining a location of a predetermined N bit sequence in a data stream. The method comprises the steps of determining two N bit data words from consecutive bits of the data stream, and providing N, N bit comparators. A first N bits of...

20060077080 - Automatic gain control adaptive for plural modulation schemes: An AGC circuit controls LNA and VGA amplifiers such that a received signal is converted at a high speed with tracking errors prevented according to each modulation scheme. The AGC circuit generates LNA and VGA control signals controlling the LNA and VGA amplifiers, respectively. A digital signal, converted from the...

20060077081 - Method and compensation device for compensation of characteristic errors of an analog-digital converter: The invention relates to a method for compensation of errors during the conversion of an analog input signal into a digital output signal in an analog-to-digital converter, wherein an error of the output signal is corrected during normal duty of the analog-to-digital converter by correction values kept in a table....

20060077083 - Encoder output signal correction apparatus and method: A third harmonic distortion corrector is equipped for correcting a third harmonic distortion contained in a two-phase sinusoidal signals with different phases output from an encoder. A third harmonic calculator/detector calculates the amplitude a3 and the phase φ3 of the third harmonic using Fourier analysis, based on change in radius...

20060077082 - Method, system, and apparatus for remote data calibration of a rfid tag population: A method, system, and apparatus for remotely calibrating data symbols received by a radio frequency identification (RFID) tag population are described. Tags are interrogated by a reader, which may be located in a network of readers. The reader transmits data symbols to the tags. Tags respond to the interrogations with...

20060077084 - Audio player using sigma-delta pulse-width modulation: An audio player using sigma-delta pulse-width modulation includes a Δ-Σ PWM unit, a drive unit, a speaker unit, and an error prediction unit. The Δ-Σ PWM unit receives an input signal and generates a pulse-width modulation (PWM) signal by means of sigma-delta pulse-width modulation. The drive unit receives the PWM...

20060077085 - Waveform control circuit: The waveform conform control circuit includes a waveform generator, an amplitude adjustment device and an offset device. The waveform generator produces a current waveform. The amplitude adjustment device receives amplitudes amplitude data and produces a predetermined scale factor which is applied to the basic current waveform to produce a scaled...

20060077086 - Analogue to digital converter: An analogue to digital converter (ADC) of the recirculating type is described. In one embodiment, the ADC is composed of three storage and residual determination units, which, in cooperation with an operational amplifier, and suitable comparator means, are operable to re-present residual signals for analogue to digital conversion. To enhance...

20060077090 - Analogue-to-digital converter: An analogue-to-digital converter includes a summing element for combining an analogue input signal of the analogue-to-digital converter with a feedback signal in order to generate a fault signal, a quantizer which has comparators for comparing the fault signal with reference voltages in order to generate a digital output signal, a...

20060077087 - Display interface systems and methods: Display interface embodiments are provided to capture various types of analog video signals and digitize them for presentation on advanced digital displays (e.g., computer displays and television displays). The embodiments include at least an error converter channel and a reference converter channel that can each amplify an analog input signal...

20060077088 - Electronic circuit apparatus: A circuit including analog circuits processes an analog input signal. Further, the circuit including the analog circuits sends a coefficient to a coefficient detection/control circuit. The coefficient is indicative of a predetermined property of each of the analog circuits provided in the circuit. The coefficient detection/control circuit processes and detects...

20060077089 - Semiconductor apparatus with ad converter: A semiconductor apparatus includes an amplifying unit, a bias controlling unit, an AD converting unit and a controlling unit. The amplifying unit is configured to amplify an input signal to output an amplified signal. The bias controlling unit is configured to generate a bias voltage to be applied to the...

20060071818 - Device for positional and/or length determination: A device for positional and/or length determination comprising a carrier unit with an absolute magnetic length coding and a measuring unit that co-operates with the carrier measuring unit and can be displaced in relation to the latter. The measuring unit has a magnetic sensor unit (Sci, Sfi) and can be...

20060071819 - Transparent touch-sensitive switching system: The invention pertains to an at least partially transparent touch-sensitive switching system comprising at least two electrodes provided with means for applying a voltage thereto and spaced from each other by a layer comprising at least one region that optically changes by applying the voltage, and at least one region...

20060071820 - Universal mobile keyboard: A versatile and mobile keyboard and a highly energy efficient keyboard scanning method are provided. The keyboard may be used with a variety of mobile devices such as PDAs, cellular phones, and tablet PCs, through various interfaces such as an IR, USB, or Bluetooth™ interface. In particular, an IR head...

20060071826 - Compression rate control system and method with variable subband processing: A system, method and computer program product provide finer rate control in data compression by processing a data stream through a plurality of parallel subbands, wherein a first subband processes the data differently than a second subband. Separate shift quantization parameters for each separate run-of-zeros compressed storage area or pile...

20060071825 - High quality wide-range multi-layer image compression coding system: Systems, methods, and computer programs for high quality wide-range multi-layer image compression coding, including consistent ubiquitous use of floating point values in essentially all computations; an adjustable floating-point deadband; use of an optimal band-split filter; use of entire SNR layers at lower resolution levels; targeting of specific SNR layers to...

20060071822 - Method and apparatus for adaptive data compression: We present a method and apparatus for performing adaptive data compression. An alphabet and vocabulary in the encoder and decoder is built adaptively and stored in a dictionary as symbols are to be encoded and decoded. Each time an unknown symbol is to be encoded by the encoder, the encoder...

20060071823 - Method and apparatus for scaling the average current supply to light-emitting elements: The present invention provides a method and apparatus for scaling the average drive current supplied to a light-emitting element or string thereof by coupling a scaling signal to an original control signal thereby generating an effective control signal for control of the light-emitting element(s). The scaling signal can be a...

20060071821 - Method for verifying a circuit function: A circuit function verification method that simulates an operating state caused by an analog signal. When differential input DP and differential input DM are inputted to a differential interface circuit, a signal change detection section monitors the state of the differential input DP and the differential input DM and detects...

20060071824 - Multi-streaming apparatus and multi-streaming method using temporary storage medium: Disclosed are a method of multi-streaming encrypted contents stored in a storage medium to a second player during streaming the contents to a first player, and an apparatus using the same. The method includes: temporarily storing the encrypted contents streaming to the first player in a temporary storage medium; and...

20060071827 - Multiple technique entropy coding system and method: A system, method and computer program product having optimal matching to a known or measured probability distribution encodes data without the use of an excessively large lookup table. An encoder constructed according to the present invention uses two or more different encoding methods in combination. In one embodiment, Huffman coding...

20060071828 - System and method for providing a thermometer coded output filter: Systems and methods are provided for providing a filtered, thermometer coded output signal from an N bit digital input, where N is an integer greater than one. A truncated lookup table provides a corresponding truncated thermometer code in response an address related to the N bit digital input. A code...

20060071830 - Decoder and decoding method: A decoder configured to receive a variable length code stream packed in a fixed length area, and to execute variable length decoding and depacking of the variable length code stream, includes a first bit position table configured to store bit position data of the variable length code stream at a...

20060071829 - Methods and apparatus for processing variable length coded data: An apparatus for processing variable length coded data includes a coefficient buffer unit and several lookup tables. The coefficient buffer unit includes a coefficient memory and an index register for storing an indication of a non-zero nature of coefficients stored in the coefficient memory. Advantageously, the lookup tables may be...

20060071831 - Variable length coding method and variable length decoding method: An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev...

20060071835 - Delta-sigma modulation circuit with gain control function: A delta-sigma modulation circuit with a gain control function includes a variable gain amplifier, a control unit that controls the gain of the variable gain amplifier, a delta-sigma modulator that inputs an output from the variable gain amplifier, and a filter circuit that inputs an output from the delta-sigma modulator....

20060071833 - Digital signal processing apparatus and digital signal processing method: The present invention provides a digital signal processing apparatus which can perform batch processing of mixing and gain controlling, etc., one time while the frequency characteristics of different filters are being mixed to a plurality of input signals in case of the re-quantization only once. The present invention provides a...

20060071834 - Feedback dac chopper stabilization in a ct single ended multi-bit sigma delta adc: A multi-bit sigma-delta analog-to-digital converter (ADC) has a single-ended input for receiving an analog input signal. A multi-bit feedback current digital-to-analog converter (IDAC) generates a multi-level feedback current depending on a multibit digital feedback signal from a Flash ADC. The feedback current is summed with the input signal with the...

20060071832 - Instantaneous phase digitizer: The present invention provides a new and efficient way of measuring the instantaneous phase of periodic signals. The instantaneous phase information is also applicable to new methods of instantaneous frequency measurements, and signal frequency restoration....

20060071837 - Apparatus for digital-analog conversion of a signal: An apparatus for the conversion of a digital input signal into an analog output signal, the apparatus including a first circuit receiving the digital input signal that is representative of the analog output signal and suitable for producing a first signal on an output line, and a second circuit for...

20060071836 - Digital to analog converter: An output voltage proportional to a duty ratio of a PWM signal can be obtained without using a large-scale circuit, even when a high potential (input potential) of an inverter is low. The digital to analog converter includes a CMOS inverter where a PWM signal generated from a pulse width...

20060071842 - Amplified analog information reading device with linear db mode gain control, in particular for an image sensor: An amplified reading device includes an adjustable gain amplifier AMP receiving analog information and of which 2j successive gain values, respectively adjustable by 2j successive values of a first control word of j bits, follow a geometric progression of ratio a; an analog/digital converter CAN connected to the output of...

20060071839 - Analog-to-digital converter: The present invention discloses an analog-to-digital converter, which is mainly applied in a digital acoustic signaling system. Conventional AD converter merely has one Schmitt Trigger. Since the bias point is fixed, the change of trigger voltages due to different semiconductor process parameters will cause output digital signals having asymmetric wave...

20060071841 - Automatic gain control system and method: An automatic gain control system,comprises a number of variable gain stages connected in series and a number of sensors, the input of each sensor being connected to a respective output of the variable gain stages. The input of an analogue-to-digital converter is connected to the output of one of the...

20060071840 - Circuit structure and circuit substrate for modifying charcteristic impedance by using different reference planes: A circuit structure for modifying characteristic impedance by using different reference planes is provided. The structure comprises an analog signal line, a digital signal line, a reference plane for analog signals and a reference plane for digital signals. Wherein, the line width of the analog signal line is the same...

20060071838 - Unified analog input front end apparatus and method: An analog input front end includes a configurable gain stage and an analog-to-digital converter. The configurable gain stage receives an analog input signal, such as a differential analog input signal, and provides a gain value to the analog input signal so as to output a gain-adjusted analog input signal that...

20060071843 - Memory efficient interleaving: A method and system using a single interleaver at a either a receiving device or a transmitting device where a first symbol set is read from the single interleaver and concurrently with a second symbol set is written to the single interleaver, and a controller that synchronizes the reading of...

20060071844 - Rotary flash adc: A system and method for converting an analog signal to a digital signal is disclosed. The system includes a multiphase oscillator preferable a rotary oscillator, a sample and hold circuit, an integrator and a time-to-digital converter. The multiphase oscillator has a plurality of phases that are used in the time-to-digital...