Patents
Patents for H03M 1 - Analogue/digital conversion; Digital/analogue conversion (31,168)
08/1989
08/24/1989DE3829545A1 Position sensor
08/24/1989DE3804751A1 Amorphous silicon as a storage medium
08/23/1989EP0329451A2 Position detector
08/23/1989EP0329231A1 Current source arrangement
08/23/1989EP0329148A2 Floating-point digital-to-analog converter
08/23/1989EP0328686A1 Deflection-insensitive optical rotary encoder
08/23/1989EP0328683A1 Apparatus for processing signals of pulse encoder
08/23/1989EP0328644A1 Converter of codes into pulse duration
08/23/1989EP0172824B1 Angular rotary position encoder
08/23/1989CN1035029A Sample-and-hold-stage and its use in parallel a/d converters
08/22/1989US4860356 Adaptive extrema coding signal processing system
08/22/1989US4860103 Video level control
08/22/1989US4860011 Flash analog-to-digital converter
08/22/1989US4860010 Automatic drift control circuit
08/22/1989US4859964 Method and circuit for automatic gain control of a signal
08/22/1989US4859930 Current source arrangement
08/22/1989US4859883 Digital circuit arrangement for quantization-noise reduction
08/22/1989CA1258711A1 Apparatus for converting between digital and analog values
08/16/1989EP0328215A2 Error correction circuit suitable for thermometer or circular code
08/16/1989EP0328213A2 Circuit for synchronizing transitions of bits in a digital code
08/16/1989EP0328093A2 Gray code converter giving a fault signal
08/16/1989EP0327820A2 Method of converting bit combinations into a pulse position modulation signal and arrangements for carrying out the method
08/16/1989CN1034818A Signal regulater
08/15/1989US4858142 Digitizer effective resolution measurement system using sinewave parameter estimation
08/15/1989US4857933 Analogue to digital converter of the multi-slope type
08/15/1989US4857932 Fast analog/digital converter having equal propagation times for the clock and the analog signal
08/15/1989US4857931 Dual flash analog-to-digital converter
08/15/1989US4857930 Circuit for reducing differential nonlinearities in multi-stage digital-to-analog converters
08/15/1989US4857929 Apparatus for converting data between analog and digital values
08/15/1989US4857927 Dither circuit having dither level changing function
08/15/1989US4857834 Semiconductor integrated circuit
08/15/1989CA1258535A1 High speed multiplying digital to analog converter
08/10/1989WO1989007367A2 Analog-to-digital converter made with focused ion beam technology
08/08/1989US4856099 Ultrafast analog to digital converters
08/08/1989US4855745 High resolution analog-to-digital converter
08/08/1989US4855744 Angle digitizer
08/08/1989US4855734 Relative position indication system
08/08/1989US4854284 Rotation angle measuring apparatus
08/02/1989EP0325981A1 Circuitry with position or angle dependent signal generators
08/01/1989US4853698 Process for the digital to analog conversion of digital information in bipolar analog signals
07/1989
07/27/1989WO1989006838A1 High resolution phase to sine amplitude conversion
07/27/1989DE3900782A1 Device for inputting data into a microprocessor, particularly for controlling a domestic appliance
07/27/1989DE3801951A1 Digital/analogue converter
07/27/1989DE3801774A1 High-resolution interpolation-type analogue/digital converter with oversampling and special digital/analogue converter in feedback
07/27/1989DE3800848A1 Method for determining a changing physical quantity
07/26/1989EP0325499A1 Acquisition device for digitizing high dynamic signals
07/26/1989EP0325378A2 Digital-to-analog converter
07/26/1989EP0324999A2 Semiconductor device having a constricted current path
07/26/1989CN1034293A Digital-to-analog converter
07/25/1989US4852130 Successive approximation register
07/25/1989US4851846 Apparatus for converting an analog balanced signal to a digital signal
07/25/1989US4851845 Encoder
07/25/1989US4851844 D/A converter with switched capacitor control
07/25/1989US4851843 Analogue-to-digital conversion apparatus
07/25/1989US4851842 Analog-to-digital conversion circuit
07/25/1989US4851839 Dual-slope analog-to-digital converter with voltage to current converter
07/25/1989US4851838 Single chip successive approximation analog-to-digital converter with trimmable and controllable digital-to-analog converter
07/25/1989US4851835 Capacitive rotary transmitter for controlling and positioning displaced objects
07/25/1989US4851752 Magnetic encoder and a method for producing the same
07/25/1989CA1257932A1 A/d or d/a converter
07/19/1989EP0324524A1 Position detector
07/19/1989EP0324114A2 Digital-analog conversion arrangement
07/18/1989US4849759 Analogue to digital converter
07/18/1989US4849757 Integrated dual-slope analog to digital converter with r/c variance compensation
07/18/1989US4849680 Encoder
07/12/1989CN1033908A Element for use in electric circuit
07/11/1989US4847879 Frequency sensing and control circuit
07/11/1989US4847621 Apparatus for converting data between digital and analog values
07/11/1989US4847620 Clock-controlled voltage-to-frequency converter
07/11/1989CA1257397A1 Dual latch architecture for reducing clock feedthrough in digital-to-analog converters
07/11/1989CA1257394A1 Calibrated weights scale and analog-digital converter using such a scale
07/06/1989DE3744132A1 Method and circuit for suppressing the quantisation noise
07/05/1989EP0322965A1 Digital-to-analog converter
07/05/1989CN1004744B Signal processing system with digital-to-analog conversion
07/04/1989US4845559 Process and apparatus for digital signal coding and transmission by selective replenishment in time of a vector quantizer
07/04/1989US4845498 Wide dynamic range digital to analog conversion method and systems
07/04/1989US4845462 Linear integrated resistor
07/04/1989US4845383 High frequency voltage comparator circuit
06/1989
06/29/1989WO1989006009A1 Pseudorandom dither for frequency synthetis noise
06/29/1989DE3743107A1 Electronic multiplier
06/27/1989US4843395 Large dynamic range analog to digital converter
06/27/1989US4843394 Digital-to-analog converter with no offset-induced errors
06/27/1989US4843393 D/A converter
06/27/1989US4843392 Digital-to-analog converter with digital correction
06/27/1989US4843388 Rotary encoder, and method of manufacturing same
06/27/1989CA1256529A1 Method of initializing an optical encoder
06/21/1989EP0320642A1 Calibration method for redundant AD or DA converters with weighted arrays
06/21/1989EP0320596A1 Position detection system with a subdividing circuit
06/21/1989EP0320525A1 Sample- and hold-stage and its application in parallel a/d converters
06/20/1989US4841209 Actuator control system with displacement sensor fault detection
06/20/1989US4841200 Circuit for driving a multiple-element display
06/20/1989CA1256215A1 Digital-to-analog converter with output sampler
06/14/1989EP0320100A2 A/D converters
06/14/1989EP0319609A1 Digital-analog converter with cyclic control of current sources
06/14/1989CN1033425A Improved signal sampling device
06/13/1989US4839653 High-speed voltage-to-frequency converter
06/13/1989US4839651 Apparatus for measuring the dynamic characteristics of an analog-digital converter
06/13/1989US4839650 Analog-to-digital conversion
06/13/1989US4838707 Electronic Thermometer
06/08/1989DE3739725A1 Arrangement for determining error-free digital electrical quantities in a multi-channel analog/digital conversion