Patents
Patents for H03M 1 - Analogue/digital conversion; Digital/analogue conversion (31,168)
08/1997
08/19/1997US5659315 Method and apparatus for multiplexed oversampled analog to digital modulation
08/19/1997US5659313 System and method for reducing noise during analog to digital conversion
08/19/1997US5659312 Method and apparatus for testing digital to analog and analog to digital converters
08/19/1997US5659261 Analog-to-digital converter and output driver
08/19/1997CA2077204C High-speed switching tree with input sampling pulses of constant frequency and means for varying the effective sampling rate
08/14/1997WO1997029548A1 Potential generating device
08/14/1997WO1997029547A1 A digital to analog converter and dynamic current mirror structure to simplify on-chip wave shaping
08/14/1997WO1997029546A1 Reference voltage circuit
08/14/1997DE19644450A1 Parallel analogue-to-digital converter with threshold value adjustment
08/13/1997EP0692160B1 Temperature corrected integrating analog-to-digital converter
08/12/1997US5657019 Analog to digital converter
08/12/1997US5657018 Bar graph decoder outputting thermometer code
08/07/1997DE19704132A1 Interpolating method for output signal of digital sensor e.g. for rotation control drive
08/06/1997EP0788238A1 Method and circuit arrangements for conversion of multiplexed signals
08/06/1997EP0787385A1 Hybrid filter bank analog/digital converter
08/06/1997CN1156348A Digital processing circuit with gain control
08/05/1997US5654710 Dynamic power reduction digital-to-analog converter and method therefor
08/05/1997US5654709 Analog signal sampling circuit constructed with field-effect transistors
08/05/1997US5654708 Process for compensating component tolerances in analog-digital converters
07/1997
07/31/1997DE19603256A1 Measuring A-D converter, converting value-time continuous electrical input
07/30/1997CN1155787A Analog/pulse period (A/T) transducer
07/30/1997CN1155786A 量化电路 Quantization circuit
07/30/1997CN1155783A Digital filter and apparatus for reproducing sound using digital filter
07/29/1997US5652586 Charge integrating-type analog to digital converter employing rapid charge neutralization and N-bit feedback
07/29/1997US5651187 Position measuring device
07/24/1997WO1997026174A1 Steering-angle sensor with evaluation of the incremental track for absolute value determination
07/24/1997WO1997026171A1 Vehicle steering-angle transducer operating by the differential measuring principle
07/24/1997DE19701941A1 Optical encoder for measuring relative displacement of two members at gap
07/24/1997DE19601676A1 Lenkwinkelsensor mit Auswertung der Inkrementalspur zur Absolutwertbestimmung Steering angle sensor with evaluation of the incremental to the absolute value determination
07/24/1997DE19601674A1 Nach dem Differenzmeßprinzip arbeitender Lenkwinkelgeber für Kraftfahrzeuge After Differenzmeßprinzip working steering angle sensor for motor vehicles
07/23/1997EP0785641A2 Digital signal processing system
07/23/1997EP0784868A1 Ccd charge splitter
07/23/1997CN1155189A Simulation-type amplitude-controlled symmetric integral analog/digit converter and converting method thereof
07/23/1997CN1155068A Interpolation pulse generating device with two-step interpolation
07/22/1997US5651091 Method and apparatus for low-delay CELP speech coding and decoding
07/22/1997US5650719 Detection of passing magnetic articles while periodically adapting detection thresholds to changing amplitudes of the magnetic field
07/17/1997DE19641283A1 Scanning technique for signal from measurement unit e.g. digital oscilloscope
07/17/1997DE19600884A1 Analogue=to=digital signal converting apparatus for radio band width signal
07/16/1997EP0783800A1 System for calibrating analog-to-digital converter
07/16/1997EP0783797A1 A wireless digital communication device, and a pulse shaping network
07/16/1997EP0783664A1 Electronic device
07/16/1997CN1154606A Sound frequency decoding device
07/15/1997US5648791 Liquid crystal display control system including storage means and D/A converters
07/15/1997US5648780 Digital to analog converter
07/15/1997US5648777 Data converter with FIFO
07/10/1997WO1997024767A1 Charge-domain generation and replication devices
07/09/1997EP0782790A2 Analog-to-digital converter for generating a digital n-bit gray-code
07/08/1997US5646622 Analog/digital converter
07/08/1997US5646620 Method and apparatus for deglitching DAC signals
07/08/1997US5646619 Self-calibrating high speed D/A converter
07/02/1997EP0782272A1 Digital processing circuit with gain control
07/02/1997EP0781420A1 A circuit provided with facilities for i ddq?-testing of a bias generator
07/02/1997CN1153429A V/f变换器 V / f converter
07/01/1997US5644514 Interpolation circuit for measuring device
07/01/1997US5644313 Redundant signed digit A-to-D conversion circuit and method thereof
07/01/1997US5644311 Pulse width modulation pulse shaper
07/01/1997US5644309 Digital comonent testing apparatus and method
07/01/1997US5644308 Algorithmic analog-to-digital converter having redundancy and digital calibration
07/01/1997US5644127 Rotary encoder and input device using the same
06/1997
06/29/1997CA2166247A1 Supervisory circuit
06/25/1997EP0780986A2 Auto calibrated digital to analog converter for a video display
06/25/1997EP0780831A2 Coding of a speech or music signal with quantization of harmonics components specifically and then residue components
06/25/1997EP0780662A2 Adjustment data input device
06/25/1997EP0779970A1 Photoelectric coder for scanning optical structures
06/25/1997CN1152821A Filter circuit for communication
06/24/1997US5642117 Process and apparatus for conversion of an N-bit digital data word into an analog voltage value
06/24/1997US5642116 Self calibrating segmented digital-to-analog converter
06/19/1997WO1997022180A1 High speed saturation prevention for saturable circuit elements
06/19/1997DE19651465A1 Digital data level control circuit for audio volume, balance, or tone controls
06/18/1997EP0779714A2 A/D converting circuit
06/18/1997CN1152376A Process for analog/digital conversion of electric signal and device for implementing it
06/18/1997CN1035223C Sampling noise transfer apparatus
06/17/1997US5640460 Amplitude adjust circuit and method thereof
06/17/1997US5640418 Equalizer, reception system having an equalizer, data conversion method and apparatus thereof
06/17/1997US5640163 Folding stage and folding analog-to-digital converter
06/17/1997US5640162 Digital-to-analog converter with binary coded inputs to produce a plurality of outputs in the form of thermometer code
06/17/1997US5640161 Silent data conversion system with sampling during electrical silence
06/17/1997US5640007 Optical encoder comprising a plurality of encoder wheels
06/17/1997CA2061366C Compression of signals for perceptual quality
06/11/1997EP0778676A2 Multi-rate digital filter apparatus and method for sigma-delta conversion processes
06/11/1997EP0585454B1 Incremental-decremental counter
06/10/1997US5638409 Data receiving device for reproducing a received symbol from a received data signal
06/10/1997US5638075 Successive approximation ADC with rounding to vary bit number output
06/10/1997US5638074 Method and apparatus for slew limiting
06/10/1997US5638073 Method of linearizing variations in the transfer characteristic of a D/A converter, as well as an arrangement and use thereof
06/10/1997US5638072 For converting two analog signals into corresponding digital signals
06/10/1997US5638071 Efficient architecture for correcting component mismatches and circuit nonlinearities in A/D converters
06/10/1997US5638011 Digital to analog converter (DAC) current source arrangement
06/10/1997US5637998 Digital system for detecting angular position
06/05/1997WO1997020394A1 R2r digital to analog converter with common shutdown mode
06/05/1997WO1997020391A1 Integrated drivers for flat panel displays employing chalcogenide logic elements
06/05/1997DE19544948A1 Digital interpolator for incremental distance or angle measurement
06/04/1997EP0777322A1 Voltage amplifier with wide dynamic range and A/D converter using such amplifier
06/04/1997EP0777321A2 Amplification of a voltage having wide variation and A-D converter comprising such an amplifier
06/03/1997US5635937 Pipelined multi-stage analog-to-digital converter
06/03/1997US5635936 Method and apparatus for providing a high current driver on integrated circuits
06/03/1997US5635935 Power reduction technique for current mode digital-to-analog converters
06/03/1997US5635934 Digital read channel utilizing analog-to-digital converter with offset reduction
05/1997
05/29/1997WO1997019520A1 Digital transmission system for transmitting a digital audio signal being in the form of samples of a specific wordlength and occurring at a specific sampling rate
05/28/1997EP0775398A2 Digital radio with vocoding encrypting codec