Patents
Patents for H03M 1 - Analogue/digital conversion; Digital/analogue conversion (31,168)
06/1980
06/24/1980US4209775 D-A Converter utilizing a main and auxiliary pulse generator to control the duty factor of an averaged pulse train signal
06/24/1980US4209774 Apparatus for converting a DC or analog signal to a digital signal with minimum drift
06/24/1980US4209773 Code converters
06/24/1980US4209771 Code converting method and system
06/24/1980US4209717 Sample and hold circuit
06/24/1980CA1080360A1 Most restrictive digital to anolog converter
06/24/1980CA1080326A1 High resolution and wide range shaft position transducer systems
06/17/1980CA1079858A1 Analog-to-digital converter
06/12/1980WO1980001206A1 Process for measuring electric power
06/03/1980USRE30294 Reversible analog to digital converter
06/03/1980US4206446 CCD A-to-D converter
06/03/1980CA1078979A1 Apparatus for determining the location of an elevator car or similar vehicle
05/1980
05/27/1980US4205303 Performing arithmetic using indirect digital-to-analog conversion
05/21/1980EP0015253A4 A transducer for sensing a variable parameter and for converting a so-obtained analog signal to a digital signal.
05/20/1980US4204257 Numerical control resolver position measuring device
05/20/1980US4204198 Radar analog to digital converter
05/20/1980US4204197 Digital scale
05/20/1980US4204173 Tuning circuit with provisions for reducing pulse width jitter
05/14/1980EP0010862A1 An LED light source device for a pulse encoder
05/13/1980US4203092 Analogue-to-digital converter
05/06/1980US4201472 Apparatus for converting light signals into digital electrical signals
05/06/1980CA1077170A1 Apparatus and method for transmitting binary-coded information
04/1980
04/30/1980EP0010149A1 Reference source for FET integrated circuits and method using such a reference source
04/29/1980US4200863 Weighted capacitor analog/digital converting apparatus and method
04/22/1980US4199758 Solid state indicating apparatus
04/22/1980US4199749 Angle coder having sprocket driven endless code tapes for determining the angular position of a rotatable shaft
04/22/1980CA1076261A1 Method of and apparatus for converting a plural-bit digital signal to a pulse width modulated signal
04/22/1980CA1076260A1 Apparatus and methods for a steplessly variable compression of digitally stored data sequences whose absolute amount vary widely for subsequent visual display and monitoring purposes
04/22/1980CA1075918A1 Engine control system
04/16/1980EP0009821A1 Sensing system for the code carrier of a weight switching mechanism used to extend the weighing range of a balance
04/15/1980US4198622 Double digital-to-analog converter
04/15/1980US4198608 Glitch detector and trap
04/15/1980US4198575 Circuit arrangement responsive to control signals for generating and storing a variable electrical analog signal
04/15/1980CA1075819A1 C-2c a/d and d/a converter
04/02/1980EP0009339A1 Apparatus for digital position measurements
04/01/1980US4196421 PCM encoder with variable set-up intervals
04/01/1980US4196420 Expanded analog-to-digital converter having one-half LSB shift
04/01/1980US4196419 Analog to digital converter
03/1980
03/25/1980US4195283 Method for converting an analog voltage to a digital value free from conversion errors, and an integrating type analog-to-digital converter capable of eliminating conversion errors
03/25/1980US4195282 Charge redistribution circuits
03/25/1980US4195235 Analog-to-digital converter system
03/25/1980CA1074448A1 Method of electrically converting an analog signal into a digital representation
03/19/1980EP0008630A1 Power/frequency converter with a microcomputer
03/18/1980US4194187 Analog-to-digital conversion by charge coupled device
03/18/1980US4194186 Digital hysteresis circuit
03/18/1980US4194185 Digitizing a recurring analog signal
03/18/1980US4194184 Bidirectional digital position encoder
03/18/1980US4194183 Apparatus for electrically converting an analog signal into a digital representation
03/18/1980CA1074018A1 Analogue-to-digital converter
03/11/1980US4193066 Automatic bias adjustment circuit for a successive ranged analog/digital converter
03/11/1980US4193039 Automatic zeroing system
03/04/1980US4191942 Single slope A/D converter with sample and hold
03/04/1980US4191900 Precision plural input voltage amplifier and comparator
03/04/1980CA1073112A1 Analog to digital converter
02/1980
02/26/1980US4190888 Digital device for determining carbon content in iron-carbon melts
02/26/1980US4190826 Multidevice position digital encoder
02/26/1980US4190825 Logarithmic analog-to-digital converter
02/26/1980US4190823 Interface unit for use between analog sensors and a microprocessor
02/26/1980CA1072685A1 Analog to digital converters
02/19/1980US4189715 μ-Law to floating point converter
02/19/1980US4189714 Analog-to-digital circuit with adjustable sensitivity
02/12/1980US4188617 System for converting analog signals to multiplexed digital data
02/12/1980US4188583 Sampling method and apparatuses
02/07/1980WO1980000206A1 Incremental integrator and servo captors resulting therefrom
02/05/1980US4187505 Display apparatus
02/05/1980US4187466 Signal injection technique
01/1980
01/29/1980US4186383 Charge weighting digital-to-analog converter
01/29/1980US4186298 Method for converting input analog signals to time signals and the time signals to digital values
01/23/1980EP0007267A1 Optoelectronic sensor for longitudinal displacements
01/22/1980US4185275 Capacitive analog to digital converter
01/22/1980US4185274 High-speed electrooptical A/D converter
01/15/1980US4184152 Circuit for converting from analog signal into digital signal and vice versa by using insulated gate field effect transistors
01/15/1980US4184151 Circuit for digitally processing exposure information
01/15/1980US4184071 Modular encoder
01/15/1980US4183241 Digital device for checking carbon equivalent in molten iron
01/09/1980EP0006808A1 Improvement in a precision integrator and its use in servosensors with incremental outputs
01/09/1980EP0006779A1 Device for digitizing transient signals
01/09/1980EP0006717A1 Analog to digital converter
01/08/1980US4183016 Parallel analog-to-digital converter with increased resolution
01/08/1980US4183014 Absolute encoding apparatus
01/08/1980US4182994 Phase locked loop tuning system including stabilized time interval control circuit
01/08/1980US4182935 Optical fiber data transmission system
01/08/1980CA1069618A1 Digital meters
01/01/1980US4181949 Method of and apparatus for phase-sensitive detection
12/1979
12/25/1979US4180807 Charge transfer circuit with voltage threshold compensating means
12/25/1979US4180806 Arrangement, in particular an analog-digital converter and method of operation thereof
12/25/1979CA1068834A Channel selecting apparatus for a television receiver with an electronic tuner
12/18/1979USRE30172 Circuit for operating a bar graph display panel
12/18/1979US4179750 Magnetic bubble type D/A converter
12/18/1979US4179687 Analog-to-digital converter circuit employing iterative subtraction
12/12/1979EP0006023A1 Analogue-to-digital signal conversion and storage system
12/12/1979EP0005999A1 Signal transmission systems
12/11/1979US4178585 Analog-to-digital converter
12/11/1979US4178584 Integrated injection logic digital-to-analog converter employing feedback regulation and method
12/04/1979US4177457 Floating point playback system
11/1979
11/27/1979US4176344 Integrated circuit binary weighted digital-to-analog converter
11/27/1979CA1067209A1 Analog to digital encoder unit employing a pre-encoded film
11/20/1979CA1066808A1 Variable speed analog signal incrementation circuit
11/06/1979US4173752 Gray code reader
10/1979
10/30/1979US4172384 Temperature measuring apparatus