Patents
Patents for H03M 1 - Analogue/digital conversion; Digital/analogue conversion (31,168)
06/1994
06/21/1994US5323436 Apparatus of and method for counting a number of revolutions of a servo motor
06/21/1994US5323159 Digital/analog converter
06/15/1994EP0601214A1 Signal observing method
06/15/1994EP0446257A4 Successive-approximation register
06/15/1994CN1088032A Switched capacitor D/A converter
06/15/1994CN1025094C Double-slope integral analogue/digital converter
06/14/1994US5321404 Ripsaw analog-to-digital converter and method
06/14/1994US5321403 Multiple slope analog-to-digital converter
06/14/1994US5321402 Analog-to-digital conversion method and device
06/14/1994US5321401 Method and apparatus for digital to analog conversion with minimized distortion
06/09/1994DE4309863C1 Binary code word scanning system for position measurement e.g. on crane gantry - compares binary words provided by two sensor groups arranged alternately along line to scan offset code marks
06/08/1994EP0600788A1 Analog-digital converter
06/08/1994EP0600498A1 Circuit for driving liquid crystal device
06/07/1994US5319372 Analog to digital converter that decodes MSBS from internal voltages of two folder circuits
06/07/1994US5319371 D/A converter with means to prevent output signal instability
06/07/1994US5319370 Analog-to-digital converter with a continuously calibrated voltage reference
06/07/1994US5318593 Multi-mode adaptable implantable pacemaker
06/01/1994EP0599120A1 Regenerator for binary signals
06/01/1994EP0536198B1 Process for the conversion of digital codes and digital-to-analog converter employing this process
05/1994
05/31/1994US5317529 Analog-to-digital converting apparatus
05/31/1994US5317313 Method and apparatus for analog/digital conversion
05/31/1994US5317312 Analog-to-digital converter of an annular configuration
05/26/1994WO1994011951A1 Pipelined analog to digital converters and interstage amplifiers for such converters
05/25/1994EP0598374A2 Sampling frequency converter
05/25/1994EP0554265B1 Two-step analog-to-digital converter
05/25/1994EP0357616B1 Process and device for compensating errors of measurement
05/24/1994US5315627 Pseudo-random repetitive sampling of a signal
05/24/1994US5315301 Binary data generating circuit and A/D converter having immunity to noise
05/24/1994CA1329831C Analog-to-digital and digital-to-analog conversion system and echo cancellation device including the same
05/18/1994EP0597315A2 Switched capacitor D/A converter
05/18/1994EP0597123A1 D/a converter and a/d converter
05/18/1994EP0515438B1 Process for converting an analog voltage to a digital value
05/18/1994EP0515424B1 Coding circuit
05/17/1994US5313300 Binary to unary decoder for a video digital to analog converter
05/17/1994US5313207 Differential subtracter improved for higher accuracy and A/D converter including the same
05/17/1994US5313206 Sub-ranging analogue to digital converter using differential signals and direct current subtraction
05/17/1994US5311771 Method for determining the rotational position of a crankshaft of an internal combustion engine
05/10/1994US5311314 Method of and arrangement for suppressing noise in a digital signal
05/10/1994US5311180 Digital circuit for the introduction and later removal of dither from an analog signal
05/10/1994US5311179 Method for amending the effect of offset voltage variations from the output voltage in a D/A converter
05/10/1994US5311072 Apparatus for sampling and holding analog data for a liquid crystal display
05/03/1994US5309478 Method and apparatus for hybrid analog/digital signal processing
05/03/1994US5309157 Analog to digital converter using folder reference circuits
05/03/1994US5309151 Current-supplying integrated circuit
05/03/1994US5309114 Pulse step modulator
05/03/1994CA1329244C Absolute position detecting method and apparatus therefor
04/1994
04/28/1994WO1994009566A1 Superconductor switching circuits
04/26/1994US5307374 Digital receiver with reduced memory requirement for Viterbi equalization
04/26/1994US5307067 Folding circuit and analog-to-digital converter
04/26/1994US5307065 Digital-to-analog converter
04/26/1994US5307064 Digital-to-analog converter capable of reducing load of low-pass filter
04/26/1994US5307063 Superconducting A/D converter
04/21/1994DE4233549A1 Detecting RPM and rotation direction of rotary drive, e.g. window lifter of motor vehicle - using signal generating or altering element connected to rotary drive and supplying detecting sensor and electronic evaluation unit
04/20/1994EP0493443B1 PARALLEL ANALOG-TO-DIGITAL CONVERTER USING 2?(n-1) COMPARATORS
04/19/1994US5305006 Soliton-phase analog-to-digital converter
04/19/1994US5305005 Analog to digital converter system
04/19/1994US5305004 Digital to analog converter for sigma delta modulator
04/19/1994US5305003 Test device of analog/digital converter
04/19/1994US5304851 Voltage dividing circuit capable of freely dividing voltage
04/19/1994CA2009963C Adaptive thresholding technique
04/13/1994EP0591868A2 Analog-to-digital converter
04/13/1994EP0591561A1 Integrated circuit for generating a reset signal
04/13/1994EP0591550A1 Absolute encoder
04/13/1994EP0591283A1 A method for determining the rotational position of a crankshaft of an internal combustion engine.
04/13/1994EP0438494B1 Digital-to-analog converter with on-board unity gain inverting amplifier
04/13/1994EP0436603B1 Process and device for converting the scanning signal of an analog input signal
04/13/1994CN1024244C Apparatus for digitally controlling D.C. value of processed signal
04/12/1994US5302951 Wide-range linear output digital/analog converter
04/12/1994US5302950 Method of and apparatus for providing automatic determination of information sampling rate
04/12/1994US5302869 Voltage comparator and subranging A/D converter including such voltage comparator
04/07/1994DE4333813A1 Pulse width modulator for control of DC motor - has incrementer-decrementer incrementing or decreasing data value held in timer in accordance with result of data comparison
04/06/1994EP0590605A2 Semi-flash A/D converter and A/D converting method
04/05/1994US5301140 Microcomputer that detects whether the output of an analog to digital convertor is increasing or decreasing overtime
03/1994
03/31/1994WO1994007310A2 Analogue to digital and digital to analogue converters
03/31/1994WO1994007309A1 Driving circuit for a gate turn-off thyristor
03/31/1994WO1994007148A1 Scanning process for jitter signals
03/30/1994EP0589749A1 Analog-digital encoding circuit with zero-offset compensation
03/29/1994US5299281 Method and apparatus for converting a digital speech signal into linear prediction coding parameters and control code signals and retrieving the digital speech signal therefrom
03/29/1994US5298902 Analog-to-digital converter employing multiple parallel switching capacitor circuits
03/29/1994US5298901 Digital decoding using dynamically determined tracking threshold values
03/29/1994US5298898 Digital to analog converter with digital correction circuitry
03/29/1994US5298814 Active analog averaging circuit and ADC using same
03/29/1994CA1328131C Encoder
03/26/1994CA2106268A1 Analogue-digital coding circuit with automatic zero-shift correction
03/23/1994EP0588387A2 D/A converter capable of producing an analog signal having levels of a preselected number different from 2**N and communication network comprising the D/A converter
03/23/1994EP0588352A1 Sampling frequency converter
03/23/1994EP0588131A2 Sensor voltage reading circuit
03/23/1994EP0472555B1 High linearity d/a converter
03/22/1994US5297056 Directly-writable digital potentiometer
03/22/1994US5296858 Improved two-stage analog-to-digital converter
03/22/1994US5296857 Digital to analog converter with precise linear output for both positive and negative digital input values
03/22/1994US5296856 Window tracking ADC
03/22/1994US5296753 Comparator circuit
03/22/1994US5296752 Current memory cell
03/17/1994DE4230853A1 Abtastverfahren für verjitterte Signale Scanning for jittered signals
03/16/1994EP0587207A2 Interfacing between analog and digital circuits
03/16/1994EP0586603A1 Digital-to-analog converter-preamplifier apparatus
03/16/1994EP0586565A1 Improved signal encode/decode system
03/16/1994EP0586546A1 Flash analog-to-digital converter
03/16/1994EP0535124B1 Analog-to-digital converter