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| Number | Title | Issue Date |
| 7292166 | Analog/digital converter and program therefor There is provided an analog-to-digital conversion apparatus that corrects digital data output from a plurality of analog-to-digital conversion units. The analog-to-digital conversion apparatus includes an interleaving unit operable to align the digital data respecti... | 11/06/2007 |
| 7158067 | 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 t... | 01/02/2007 |
| 7148817 | 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 magne... | 12/12/2006 |
| 7145482 | 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... | 12/05/2006 |
| 7119730 | Analog-to-digital converter for programmable logic Digital-to-analog and analog-to-digital conversion are implemented in or using programmable logic. The DAC and ADC circuits may be hardwired in a programmable logic integrated circuit or may be implemented using an intellectual property (IP) core. The IP core would ... | 10/10/2006 |
| 7109901 | Use of and gates with a write control circuit for trimming a bleeder resistor In a semiconductor integrated circuit, serially inputted trimming data are sequentially written to plural memory cells in accordance with selection signals for trimming a bleeder resistor, making it possible to dispense with a data register for storing the trimming ... | 09/19/2006 |
| 7109906 | NICAM encoder featuring synchronization of a NICAM processor with front-end input and output sections A NICAM encoder (54) comprises a NICAM processor (82) and a front-end section (80,84) coupled to the NICAM processor. The front-end section is configured for operating with a system clock (68) that is integer divisible such that the syste... | 09/19/2006 |
| 7109902 | Method and system for sampling a signal According to one embodiment of the invention, a method of sampling a signal is provided. The method includes receiving over a signal path an analog signal generated using a first clock signal by a first device. The method also includes sampling the analog signal usi... | 09/19/2006 |
| 7109894 | Encoding and decoding a media signal with high and low quality versions The invention discloses a method of embedding information for high quality restoration of a media signal (typically an audio-visual signal) in a lower quality version of the signal. To this end, the signal x is encoded using a high quality encoder (Q2). The c... | 09/19/2006 |
| 7106231 | Video signal processing system including analog to digital converter and related method for calibrating analog to digital converter A video signal processing system capable of adjusting errors and related methods are introduced. The video signal processing system and related calibration methods utilize the characteristic of periodic breaks of video signals to perform various kinds of calibration... | 09/12/2006 |
| 7102545 | Simultaneous bidirectional input/output circuit Disclosed is a data detector for detecting data placed on a bi-directional data channel having two nodes. The data on the data channel is a combination of data placed on the data channel at both nodes. The data detector at the first node compares data received from ... | 09/05/2006 |
| 7102557 | Switched capacitor DAC The present invention relates to digital to analog converters, and especially but not exclusively to switched capacitor digital to analog converters (DACs) for digital audio signals. The present invention provides a switched capacitor DAC for converting a digital si... | 09/05/2006 |
| 7102555 | Boundary-scan circuit used for analog and digital testing of an integrated circuit Method and apparatus are described for providing analog capability with boundary-scanning for an integrated circuit. The integrated circuit includes a boundary-scan controller (1517) coupled to an analog-to-digital converter (200). An analog channel is... | 09/05/2006 |
| 7102559 | Analog-to-digital converter having interleaved coarse sections coupled to a single fine section An analog-to-digital conversion arrangement for converting an analog input signal into a digital output signal with a most significant part and a least significant part comprises sample means for sampling the analog input signal, a plurality of coarse resolution ana... | 09/05/2006 |
| 7098825 | Fixed offset digital-to-analog conversion device and method I describe and claim an improved digital-to-analog conversion device and method. The device comprises a current supply circuit to generate a plurality of control currents responsive to a plurality of digital signals. An input voltage generating circuit is adapted to... | 08/29/2006 |
| 7098828 | Complex band-pass ΔΣ 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... | 08/29/2006 |
| 7098830 | Current switching arrangement for D.A.C. reconstruction filtering An arrangement provides a reduced harmonic content output signal that represents a value of a digital input signal. The arrangement includes plural storage devices 301 . . . configured to sample and store the digital input signal at different respective phases of a ... | 08/29/2006 |
| 7098833 | 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... | 08/29/2006 |
| 7095350 | 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 el... | 08/22/2006 |
| 7095355 | Low power ADC for imaging arrays An analog to digital converter ADC is adapted for low power for use in an imaging array. The ADC is a digital inverter with feedback to convert an asynchronous ramp voltage to an output count at each crossing of a voltage threshold. A separate circuit generates a vo... | 08/22/2006 |
| 7091884 | Analog position encoder A position-measuring circuit is described for use with an analog position encoder of the kind comprising a code member and at least two sensors for sensing successive marks on the code member during relative movement between the code member and sensors, the sensors ... | 08/15/2006 |
| 7091891 | Calibration of analog to digital converter by means of multiplexed stages An improved pipelined analog to digital converter that facilitates calibration for non-linearity errors and a method for obtaining calibration values. The analog to digital converter has a calibration mode in which the output bits for stages in the pipeline can be c... | 08/15/2006 |
| 7091893 | 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... | 08/15/2006 |
| 7091897 | 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 a... | 08/15/2006 |
| 7088275 | Variable clock rate analog-to-digital converter An algorithmic analog-to-digital converter (ADC) includes a sample-and-hold circuit and an ADC processing unit operating in parallel and sharing a single operational amplifier. The ADC processing unit includes an MDAC with a switched capacitor topology and a sub-ADC... | 08/08/2006 |
| 7088202 | Methods and apparatus for an improved discrete LC filter A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first ... | 08/08/2006 |
| 7084789 | DC-free code having limited error propagation and limited complexity A method and apparatus are provided for encoding and decoding digital information. A sequence of data words is received, wherein each data word has a running digital sum (RDS). The sequence of data words is encoded into a sequence of corresponding code words, which ... | 08/01/2006 |
| 7084791 | Analog-to-digital converter with correction of offset errors An analog-to-digital converter (200) includes at least one stage (105) for converting an analog input signal into a digital output signal using a parallel quantizer (115) comparing the analog input signal with a plurality of threshold values in ... | 08/01/2006 |
| 7079054 | 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 pl... | 07/18/2006 |
| 7079056 | Method of encoding and storing in a machine control computer a compressed data lookup table A compressed data table is formed from an uncompressed data table by defining a code description bit structure having a code type and a run length of data items. The code type may be configured to identify byte-length data items, word-length data items and/or one or... | 07/18/2006 |
| 7075390 | Surface acoustic wave device The surface acoustic wave device has the surface acoustic wave transducer, which consists of the positive electrode finger 102, the negative electrode finger 204, and the floating electrode 300, which are formed on the surface of the langasite s... | 07/11/2006 |
| 7075475 | Correlated double sampling modulation system with reduced latency of reference to input A charge balancing modulation system for digitizing the output of a variable impedance sensor utilizes synchronous excitation of the input sensor and AC coupling of the analog input signal. In one embodiment, the modulation system includes a switched excitation sour... | 07/11/2006 |
| 7071863 | Low power analog to digital converter having reduced bias during an inactive phase A circuit with reduced power consumption comprises first and second circuits that each have periodic active and inactive phases and that switch between the periodic active and inactive phases during operation. When the first circuit is in the active phase, the secon... | 07/04/2006 |
| 7071856 | Pipeline ADC calibrating method and apparatus thereof A pipeline ADC has a plurality of analog-to-digital conversion units cascaded in series to form a pipeline. An error correcting method for the pipeline ADC includes during a first mode, measuring the plurality of analog-to-digital conversion units utilizing an extra... | 07/04/2006 |
| 7068205 | Circuit, method, and apparatus for continuously variable analog to digital conversion A circuit, method and microcontroller apparatus for performing an analog to digital conversion with continuously variable resolution is disclosed. The circuit includes a integrating modulator for converting an analog input signal, corresponding to an input voltage, ... | 06/27/2006 |
| 7068195 | Accurate sampling technique for ADC A time interleaved ADC system includes a delay circuit that has a dynamically adjusted speed to achieve uniformly spaced sampling intervals. The adjustment control circuit monitors the sampling pulses associated with sampling time instant for each ADC, and provides ... | 06/27/2006 |
| 7068202 | Architecture for an algorithmic analog-to-digital converter An algorithmic analog-to-digital converter (ADC) includes a sample-and-hold circuit and an ADC processing unit operating in parallel and sharing a single operational amplifier. The ADC processing unit includes an MDAC with a switched capacitor topology and a sub-ADC... | 06/27/2006 |
| 7064691 | Noise suppression circuit, ASIC, navigation apparatus, communication circuit, and communication apparatus having the same A noise suppression circuit encompasses an internal circuit, a bypass capacitor, first and second transistors. The internal circuit has high and low level terminals, and the low level terminal is connected to a low level power supply line. The internal circuit is su... | 06/20/2006 |
| 7064688 | System and method for compressing data on a bandwidth-limited network A method for compressing a message is disclosed, comprising: identifying a block of data within the message which is found in a previous message; generating a pointer identifying the block of data in said previous message; and replacing the block of data with the po... | 06/20/2006 |
| 7064689 | 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 c... | 06/20/2006 |
