Coded data generation or conversion inventions 08/06

20060192689 - 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...

20060192690 - Capacitive keyboard with non-locking reduced keying ambiguity: Keyboards, keypads and other data entry devices can suffer from a keying ambiguity problem. In a small keyboard, for example, a user's finger is likely to overlap from a desired key to onto adjacent ones. An iterative method of removing keying ambiguity from a keyboard comprising an array of capacitive...

20060192694 - Code generation and allocation method: A method of generating and allocating codewords includes allocating one of two selectable codewords b1 and b2 as codeword “b” when a preceding codeword “a” and a following codeword “b” form a code stream X, in which the codewords b1 and b2 have opposite INV values which are parameters indicating...

20060192691 - Decoding apparatus, decoding method and program: The present invention provides a decoding apparatus for carrying out a decoding process on a ring-R linear code. The decoding apparatus includes coded-word holding means for acquiring a coded word with a code length reduced by omission of some symbols from the coded word and for holding the coded word;...

20060192692 - Hearing aid device with an output amplifier having a sigma-delta modulator: In a digital hearing aid device with an output amplifier having a sigma-delta modulator, the output transducer has a high current consumption even when no output signal perceivable as an acoustic output signal is generated. A linear digital filtering in connection with the sigma-delta modulation reduces the number of the...

20060192693 - Image processing device and image processing method: An inter-frame difference generation circuit generates, in every pixel unit, a difference level of an image between a present frame and a frame before one frame period. A histogram generation circuit generates a difference histogram indicating a frequency distribution of difference levels between the frames in a state in which...

20060192696 - Apparatus and method for alpha blending of digital images: In the present invention, an apparatus and method for performing alpha blending calculations in a fast and efficient manner is disclosed. When implemented as an integrated circuit, the apparatus of the present invention occupies reduced area. The apparatus comprises a plurality of multiplexers and an adder. Each of multiplexers is...

20060192695 - Gray scale voltage generating circuit: Disclosed is a gray scale voltage generating circuit which includes a first resistor ladder circuit, connected between a high voltage power supply terminal and a low voltage power supply terminal and having nodes for outputting respective reference voltages, a second resistor ladder circuit, connected between the high voltage power supply...

20060192697 - Collision detection in a non-dominant bit radio network communication system: A communications system and protocol for use in a non-dominant bit radio network. The radio network includes transceivers which communicate with other transceivers to allow network variables to be shared by all transceivers. The protocol allows the network to handle collisions between competing transmissions from different transceivers. The protocol also...

20060192698 - Encoding dynamic graphic content views: This invention relates to processing of dynamic graphic content, more particularly, to a method for pre-processing dynamic graphic content, a corresponding decoding method, and an apparatus for the same. The pre-processing method of the invention comprising: encoding a view in which all of the plurality of dynamic elements being in...

20060192700 - Encoder, decoder, and data transfer system: An encoder suppresses effectively the high-frequency components of data to be transmitted by decreasing the changing points of serial data, thereby suppressing EMI. A changing-point counter counts changing points of n-bit data (n: a positive integer) to generate a counting result, where values of adjoining bits change at each of...

20060192699 - Serial-to-parallel conversion circuit, and semiconductor display device employing the same: In a serial-to-parallel conversion (SPC) circuit for digital data which converts the digital data serially inputted, into parallel digital data, and which outputs the parallel digital data; clock signals at frequencies which are, at the highest, ½ of the frequency of the input digital data are employed for operating the...

20060192701 - Serial-to-parallel converter circuit and parallel-to-serial converter circuit: A parallel-to-serial converter selects variable-ml-bit parallel dummy data from m-bit parallel dummy data (0≦m1≦m) together with a n-bit parallel data signal synchronized with a first clock signal having a first frequency, and converts the selected (n+m1)-bit parallel data into a (n+m1)-bit serial data signal synchronized with a second clock signal...

20060192702 - View maintenance on multiple tables located in different software components with the same primary keys: A method performed by a processor allows an individual to update or maintain a database including a core and an extension. The core contains core tables including general data and the extension contains extension tables including specific data. The core tables and the extension tables have the same primary keys...

20060192703 - Method and related apparatus for digital-analog conversion: Method and related apparatus for digital/analog converter are disclosed. The invention is based on M switch elements with each capable of selectively providing a positive or a negative electricity. While generating an analog signal output corresponding to a digital input of value D, the invention calculates two values Pa and...

20060192704 - Apparatus and method of stabilizing sigma-delta modulator for fractional-n phase-locked-loop: A sigma-delta modulation method with low complexity is provided. To this end, in the present invention, an input signal is forwarded and an output signal is fed back to thus reduce the range of the noise transfer function of the sigma-delta modulator and to lower the frequency offset and the...

20060192705 - Current source cell and d/a converter using the same: A current source cell of one embodiment according to the present invention comprises: first and second transistors which are complementarily switched by a control signal; a constant current source which is commonly connected to one ends of current paths of the first and second transistors; third and fourth transistors which...

20060192706 - High frequency compensator and reproducing device: A high frequency compensator includes a down sampler configured to perform ½ down-sampling for a compressed and expanded digital audio signal. An up sampler is configured to perform double up-sampling for an output signal of the down-sampler. A digital low-pass filter is configured to filter an output signal of the...

20060192707 - Integrated circuit with reduced analog coupling noise: An integrated circuit includes CMOS circuit blocks and analog control lines arranged outside a layout of the CMOS circuit blocks so that the analog wiring and circuit blocks do not overlap each other. The distance of signal lines within a circuit block and the analog control lines can become as...

20060187089 - Enhancing character input in electronic device: The invention relates to an electronic device and a method of enhancing character input in an electronic device comprising a set of keys. The method comprises associating a group of characters with at least one key; detecting repeated presses of a key; detecting whether the key has been touched continuously...

20060187090 - Input device: An input device includes a plurality of input keys arranged in a matrix of three or more rows and three or more columns; electrodes facing parts of or all surfaces of the input keys that surround intersection of rows and columns formed by the arrangement of the input keys; and...

20060187093 - Code generation and allocation method: A method of generating and allocating codewords includes allocating one of two selectable codewords b1 and b2 as codeword “b” when a preceding codeword “a” and a following codeword “b” form a code stream X, in which the codewords b1 and b2 have opposite INV values which are parameters indicating...

20060187091 - Procedure and circuit device for the substraction of electrical signals: The invention relates to a procedure and a circuit device for the subtraction of electrical signals, with at least two regulating loops each comprising at least one amplifier unit. Advantageously, the circuit device comprises a device for subtracting a signal, made available by the circuit device and representing the difference...

20060187092 - Sequence detection by multi-valued coding and creation of multi-code sequences: Methods and apparatus for coding binary and multi-value sequences into higher value sequences are disclosed. Correlation methods for comparing lower-value sequences by first coding to higher value sequences and then calculating a correlation number are also disclosed. Methods and apparatus for resetting the coding rule during multi-value coding are also...

20060187095 - Method and apparatus for coding information, method and apparatus for decoding coded information, method of fabricating a recording medium, the recording medium and modulated signal: In the coding device and method, m-bit information words are converted into n-bit code words such that the coding rate m/n is greater than ⅔. The n-bit code words are divided into a first type and a second type, and into coding states of a first kind and a second...

20060187094 - 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....

20060187096 - Method of decoding variable length prefix codes: The method disclosed may be used together with any prefix oriented decoding method to enable faster decoding of variable length codes when a subset of most frequently used codes with relatively short prefixes may be determined. An embodiment of the present invention reads a number of bits, not less than...

20060187099 - Delta-sigma modulator and its application to switching amplification circuit: A loop delay control circuit is provided between a comparator and a power switch stage. When the amplitude of an input signal is especially high, the loop delay control circuit secures an oscillation threshold value by setting a delay amount at a low value. On the other hand, when the...

20060187100 - Multiple input analog-to-digital conversion apparatus and radio receiver using the same: A multiple input AD conversion apparatus includes a first unit AD converter including a plurality of first conversion stages connected in cascade to convert a first analog input signal to a first digital output signal, a second unit AD converter including a plurality of second conversion stages connected in cascade...

20060187097 - Sigma delta converter with flying capacitor input: A sigma delta analog to digital converter of the type adapted to be connected to a capacitive current input device, comprises: a sigma delta modulator having an input; and a flying capacitor constructed so as to be connected between the input of the sigma delta modulator and the capacitive current...

20060187098 - Signal processing circuit: A signal processing circuit can obtain a ratiometric output with high precision and high responsiveness in a relatively easy and simple way. A pulse generation circuit generates a pulse signal corresponding to an input signal. An integration part generates an integrated voltage having a time slope proportional to an input...

20060187101 - Tracking supply ac regeneration system and method: A circuit for implementing tracking supply alternating current (“AC”) regeneration is described. In one embodiment, the circuit comprises a line synchronization device for converting an incoming AC signal to a square wave, wherein the square wave is precisely in phase with the incoming AC signal; a processor for processing the...

20060187105 - Analog-to digital converter and analog-to digital conversion apparatus: An analog-to-digital conversion apparatus which has a variable resolution and allows a reduction in power consumption. This apparatus comprises an analog-to-digital converter (ADC) of parallel type, a controller, and an interpolation circuit. The analog-to-digital converter has a plurality of comparators connected in parallel, each for comparing potentials of an analog...

20060187106 - Analog-to-digital converter with interchangeable resolution and sample and hold amplifier channels: A successive approximation register analog-to-digital converter (SAR ADC) having a sample, hold and convert amplifier circuit may be configured for either a single channel SAR ADC or a multiple channel SAR ADC. Switches or metal connection options, e.g., bit configurable or metal mask configurable, respectively, may be used to configure...

20060187102 - Method and arrangement for multichannel analog/digital conversion: The invention relates to a method of multichannel analog/digital (A/D) conversion, in which in a first and second channel respectively in a first or second channel provision area a first and second analog signal awaiting conversion is sampled by a respective first and second S/H (Sample & Hold) element and...

20060187104 - Method for converting an analog input signal, and analog-to-digital converter: A method for converting an analog input signal into a digital value with successive approximation. A first comparison operation is provided before a first approximation, which subdivides a predefined input voltage interval into five partial intervals according to four reference potentials. During the comparison operation, a partial voltage interval determined...

20060187107 - Multiple input analog-to-digital conversion apparatus and radio receiver using the same: A multiple input AD conversion apparatus includes a first unit AD converter including a plurality of first conversion stages connected in cascade to convert a first analog input signal to a first digital output signal, a second unit AD converter including a plurality of second conversion stages connected in cascade...

20060187103 - Serial audio output driver circuits and methods: An output driver circuit including a transistor for pulling down an output terminal voltage and a charge pump for driving an input of the transistor to pull-down the output terminal voltage substantially to zero volts in response to a selected level of an input signal....

20060187108 - Reference voltage driving circuit and pipelined analog to digital converter including same: A reference voltage driving circuit and a pipelined analog to digital converter including the reference voltage driving circuit capable of providing a stable reference voltage even during a high speed/high resolution of analog-to-digital conversion using source follower circuits. Furthermore, a MDAC (Multiplying Digital to Analog Converter) requiring a high precision...

20060187109 - Noise measuring system, noise measuring method, and semiconductor device: To measure noise generated within a semiconductor device at a high speed and at high accuracy. A semiconductor device 1 includes an output driver circuit 5 for generating noise on wiring for a power supply Vdd targeted for noise measurement using a trigger signal S input from measuring equipment 2...

20060181434 - Electronic apparatus: An electronic apparatus includes an operation dial, a board disposed at an inner position from the operation dial, a rotary encoder disposed on a surface of the board on the side opposite to the operation dial side, and a connection member which engages with an encoder shaft of the rotary...

20060181435 - Apparatus and method of determining characters typed in a mobile communication device: The invention is directed a method for use in conjunction with a keyboard of a mobile communication device for determining which of several characters designated by any one of a number of particular character keys is intended by a user, comprising the steps of sensing depression of a character position...

20060181437 - Bus system: The invention relates to a procedure for operating a bus system, as well as a bus system with a line, and two adjoining lines, whereby the lines each comprise two line sections, which are connected with one another by means of a line amplifier and/or buffer device, and whereby the...

20060181439 - Dc-free code having limited error propagation and limited complexity: A method and apparatus are provided for decoding a sequence of code words into a sequence of data words. Each code word includes an encoded data word and an indicator bit. The encoded data word is extracted unchanged into a respective unencoded data word if an indicator bit has a...

20060181436 - Floating point type digital signal reversible encoding method, decoding method, devices for them, and programs for them: Digital signal samples X in a floating-point format, each of which is composed of 1 bit of sign, 8 bits of exponent E and 23 bits of mantissa M, are converted through rounding by an integer formatting part 12 into digital signal samples Y in an integer format, the sequence...

20060181438 - Pwm digital amplifier with high-order loop filter: An improved PWM amplifier is disclosed that uses multiple integrators in the loop filter to provide high loop gain across the frequency band-of-interest. The frequency characteristics of the loop filter are optimized to distribute large loop gains across the entire band to provide large suppression of noise and distortions generated...

20060181440 - Statistical streaming: A method of providing a display signal, wherein digital data to be displayed has associated with it statistical values determined for pre-determined sized blocks of the digital data, comprising the steps of: determining display scaling parameters; determining from the display scaling parameters the extent to which the statistical values are...

20060181441 - Content independent data compression method and system: Systems and methods for providing fast and efficient data compression using a combination of content independent data compression and content dependent data compression. In one aspect, a method for compressing data comprises the steps of: analyzing a data block of an input data stream to identify a data type of...

20060181442 - Content independent data compression method and system: Systems and methods for providing fast and efficient data compression using a combination of content independent data compression and content dependent data compression. In one aspect, a method for compressing data comprises the steps of: analyzing a data block of an input data stream to identify a data type of...

20060181443 - Message compression methods and systems: A method for message compression comprises receiving a first text message, acquiring at least one frequent character combination in the first text message, calculating frequencies for the frequent character combination and characters occurring in the first text message, generating multiple representative codes respectively for the frequent character combination and characters,...

20060181444 - Synchronous parallel/serial converter: A synchronous parallel/serial converter is disclosed. In one embodiment, the a synchronous parallel/serial converter that receives a parallel n-bit input signal and comprising a first shift register that receives an odd-numbered part of the input signal with a first load signal in synchronism with a clock signal having a clock...

20060181445 - Voltage supply interface with improved current sensitivity and reduced series resistance: A voltage supply interface provides both coarse and fine current control with reduced series resistance. The voltage supply interface has a segmented switch having N component switches that are digitally controlled. The voltage supply interface replaces a conventional sense resistor with a calibration circuit that has a replica switch that...

20060181446 - Frequency synthesizer having variable frequency resolution, and fractional-n frequency synthesizing method using sigma-delta modulation of frequency control pulses: A fractional-N frequency synthesizer supporting multi-band operation, having variable frequency resolution obtained by sigma-delta modulating a multi-bit frequency resolution control signal having at least one pulse, the at least one pulse having a period of P and a variable duty cycle. Frequency resolution can be increased by changing the duty...

20060176194 - Fast pulse powered nor decode apparatus with pulse stretching and redundancy steering: A decoder circuit includes a pulse powered stage having a plurality of fan-in inputs thereto, a dynamic stage fed by the pulse powered stage, and a replica node selectively coupled to an output node of the pulse powered stage by a pass device. The pass device and the dynamic stage...

20060176195 - System and method for partition and pattern-match decoding of variable length codes: An apparatus and method of decoding variable length codes is provided. According to some embodiments, a method includes receiving a bitstream of a codebook of variable length codes, partitioning the codebook based on leading zeros (0) or ones (1), removing a common prefix, from each codeword to obtain a set...

20060176196 - Data compression apparatus, and data compression program storage medium: A data compression apparatus includes: a difference creating section that determines a difference between adjacent numerical values on continuity of numerical values constituting the data to be compressed so as to create new data to be compressed; an offset section wherein numerical values constituting the new data to be compressed...

20060176197 - Calibratable analog-to-digital converter system: A calibratable analog-to-digital converter system with a split analog-to-digital converter architecture including N Analog-to-Digital Converters (ADCs) each configured to convert the same analog input signal into a digital signal. Calibration logic is responsive to the digital signals output by the N ADCs and is configured to calibrate each of the...

20060176198 - Digitization of video and other time bounded signals: An analog to digital processor for time bounded signals. The present invention provides a processor that is capable of processing time bounded signals through a delta sigma modulator. The present invention provides a gate or premodulator to limit the input the application of a time bounded input signal to the...

20060176199 - Quantization-precision-reproduction method, quantization-precision-reproduction device, image-pickup device, information-processing device, and program: A quantization-precision-reproduction method including the steps of reproducing an m-bit-length high-precision component lower than or equal to quantization precision of an n-bit-length digital signal on the basis of the n-bit-length digital signal, and generating an n+m-bit-length digital signal by adding the reproduced m-bit-length high-precision component to a low-order bit of...

20060176204 - A/d converter, d/a converter and voltage source: A reference voltage generating circuit generates a reference voltage Vref. An A/D converting circuit compares an analog input voltage Vin with the reference voltage Vref to convert the analog input voltage Vin to a digital output value Dout. A measured value storing circuit stores a measured value of the reference...

20060176201 - Analog front-end circuit and electronic device: An analog front-end circuit controlling an imaging device and processing an analog image signal output from the imaging device includes: an analog processing section that receives an analog image signal from the imaging device, provides the image signal with predetermined processing, and outputs the image signal; an A/D converter that...

20060176202 - Digital-to-analog converter using plural transistors having the same operating characteristics: A digital-to-analog converter converts a digital input signal into an analog signal. The digital-to-analog converter includes: a power-supply unit for outputting voltages of different magnitudes through plural output terminals thereof; plural switches connected to the plural output terminals, which are controlled on and off, and are for applying the output...

20060176203 - Enhancement of the dynamic range of a multibit digital-to-analog converter: A digital-to-analog converter (DAC) for an audio system may include at least first and second subsets of individually selectable elementary current sources for delivering analog output current contributions, a code conversion circuit for selecting elementary current sources of first and second subsets as a function of codes of a pulse...

20060176200 - Signal driving circuits: Signal driving circuits with high driving capability and precise analog output voltage level, by outputting analog voltages through analog buffers and directly outputting voltages from digital-to-analog converters in turn. A digital-to-analog converter generates a first analog voltage according to digital data. An output circuit selectively either outputs a second analog...

20060176205 - Two-stage a/d converter and image sensor using the same: In a conventional CMOS image sensor, an A/D converter for performing A/D conversion at high-speed arranges the A/D converter elements in columns so as to operate in parallel, and has low resolution in the order of 9 or so bits. The present invention provides an A/D converter for an image...

20060176206 - Comparator having small size and improved operating speed: A comparator having a small number of logic circuits and an improved operating speed is provided, where the comparator includes m number of bit comparators, each connected between a first node and a second node, comparing each corresponding bit between the first data and the second data, and connecting or...

20060176207 - Electronic operating system: The invention relates to an electronic operating system comprising at least one functional apparatus (10) and at least one remote control unit (11). To implement the possibilities of interaction in a more intensive, yet more user-friendly way, the remote control unit (11) and the functional apparatus (10) co-operate with each...

20060170569 - Input apparatus: An input apparatus compact and superior in operability is disclosed wherein, in either a folded or unfolded position, a joystick control can exhibit the same operations and an optical signal from a transmission section can be transmitted with certainty. The input apparatus includes first and second operation housings each having...

20060170570 - Electric converter for fuel cell:

20060170571 - Lossy data compression exploiting distortion side information: Described are techniques for performing lossy encoding. Source data and quality data are received by an encoder. The encoder maps the source data into a compressed representation having a level of distortion in accordance with the quality information. The compressed representation may be decoded without using the quality information....

20060170572 - Starter circuit: A starter circuit includes a start detection circuit for detecting a change of an input signal and outputting a start digital signal, a digital OR circuit for outputting a determination digital signal based on the start digital signal, a power supply circuit being activated based on the determination digital signal,...

20060170574 - Method and apparatus for compressing and decompressing data, and computer product: A bit string having a predetermined length is added to a head of a data string. The data string to which the bit string is added is compressed to produce a compressed data string. A head part is taken off from the compressed data string. The head part includes from...

20060170573 - Method and device of converting data words into code words: Disclosed are a method and device of converting data words into code words. This method inserts 2p p guided bits before inputting each set of data words, performs a pre-defined operation, and generates 2p data sequences with different guided bits. It chooses q data sequences from the 2p data sequences...

20060170575 - Digital test apparatus for testing analog semiconductor device: A digital test apparatus for testing an analog semiconductor device includes a low pass filter which passes only a low frequency analog signal from among analog signals output from the analog semiconductor device, a rectifying unit connected to the low pass filter for converting the analog signal output from the...

20060170576 - Dynamic dither for sigma-delta converters: A sigma-delta converter having dynamic dithering that reduces or removes idle-channel tones and increase linearity of the converter. The dither is differentiated in multiple orders before being applied to the converter quantizer. The differentiation order and the amplitude of the dither are determined dynamically based on the input signal amplitude...

20060170579 - Resolver arrangement: A resolver arrangement that is inexpensive and yet offers high resolution and high noise rejection includes a carrier signal generator and two processing channels each of which has an analog input connected a different one of the stator coils and a channel output. Each of the processing channels includes a...

20060170578 - Techniques for generating modulation codes using running substitutions: Techniques are provided for performing substitutions of bit sequences that are known to cause errors. Input data is initially modulation encoded. The modulated data is then analyzed in a sliding window to determine if it contains any additional bit sequences that are known to cause errors. If an error prone...

20060170577 - Techniques for using interleaved encoders to obtain modulation constraints: Techniques are provided for applying modulation constraints to data streams divided into separate interleaved portions. The even and odd bits in a data stream are separated into two data paths. A first modulation encoder encodes the even bits according to a first constraint. A second modulation encoder encodes the odd...

20060170580 - Analog to digital converter using sawtooth voltage signals with differential comparator: An analog to digital converter includes a resistor-divider network including a plurality of resistors, an arbel channel circuit configured to generate a voltage sawtooth signal as an output, a dc-offset disposed to couple a node of the resistor-divider network and the arbel-channel circuit. The converter further includes a voltage reference...

20060170581 - Receiver capable of correcting mismatch of time-interleaved parallel adc and method thereof: A compensation method for a receiver is disclosed, the method includes: receiving and processing an incoming signal to generate an analog input signal; utilizing a time-interleaved parallel analog-to-digital converter (ADC) for converting the analog input signal to a digital input signal according to a plurality of clock signals of different...

20060170582 - Remote control, apparatus, system and methods of using the same: A system provides an audible signal to the user of the system before a control or function is activated by the user. In one embodiment, a remote control can be used with an apparatus, such as a set-top box. When the user places an object near a control of the...