Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › H03M 1 - Analogue/digital conversion; Digital/analogue conversion
Patents for H03M 1 - Analogue/digital conversion; Digital/analogue conversion (31,168)
10/1990
10/30/1990US4967198 Serial-to-parallel analog CCD GaAs device
10/30/1990US4967197 Error correction system for digital to analog converters
10/30/1990US4967140 Current-source arrangement
10/30/1990CA1275737C Digital-to-analog converter
10/24/1990EP0393728A2 Current switching digital-to-analog converter
10/24/1990EP0393404A2 Stabilization and calibration of precision electronic circuit component
10/24/1990CN1046419A Control arrangement for inverter current
10/23/1990US4965867 Offset compensation circuit
10/23/1990US4965669 Apparatus for digitally controlling the D.C. value of a processed signal
10/23/1990US4965668 Adaptive rounder for video signals
10/23/1990US4965579 N-bit A/D converter utilizing N comparators
10/23/1990US4965578 High dynamic analog to digital counter
10/23/1990US4965503 Positional information generating apparatus and code means therefor
10/18/1990WO1990012459A1 Analog to digital converter
10/18/1990DE3911974A1 D=A converter with 1 bit digital input - has RC smoothing with time constant at multiple clock rate
10/17/1990EP0392833A1 Apparatus for digitally controlling the D.C. value of a processed signal
10/16/1990US4963881 Method and apparatus for enhancing the signal resolution of an analog-to-digital converter
10/16/1990US4963874 Parallel type A/D converter
10/16/1990US4963873 Digital/analog converter with high output voltage stability
10/16/1990US4963871 Analog-to-digital converter using superconducting material
10/16/1990US4963870 Digital to analog converter with compensation memory addressed by lower order bits
10/16/1990CA1275325C Microprocessor - controlled function generator
10/12/1990CA2013342A1 Apparatus for digitally controlling the d.c. value of a processed signal
10/10/1990EP0391522A2 C.T. data acquisition system
10/10/1990EP0391125A2 Method and circuitry for converting an analog measure tension in a digital mesure signal
10/10/1990EP0390936A1 Circuit arrangement with a sensor system for signals dependent upon displacement or angle
10/10/1990EP0390868A1 Pseudorandom dither for frequency synthetis noise.
10/09/1990US4962380 Method and apparatus for calibrating an interleaved digitizer
10/09/1990US4962323 High speed auto zero comparator
10/04/1990WO1990011613A1 Analog to digital conversion incorporated in z-technology module
10/03/1990EP0263140B1 Apparatus for converting an analogue balanced signal to a digital signal
10/02/1990US4961045 Floating output digital to analog converter
09/1990
09/26/1990EP0389124A2 Adaptive thresholding technique
09/26/1990EP0215821B1 Digital to analog conversion apparatus
09/26/1990EP0172825B1 Linear position encoder
09/26/1990CN1009769B Improvements in or relating to transducer interfaces
09/25/1990US4959651 Temperature detection method and apparatus
09/25/1990US4959650 Dual channel A/D and D/A converter with improved isolations
09/25/1990US4958632 Adaptable, digital computer controlled cardiac pacemaker
09/19/1990EP0388130A2 An analog/digital converter for a differential input signal
09/19/1990EP0387686A2 Voltage-to-frequency conversion method and device for implementing the method
09/19/1990EP0387685A2 Voltage-to-frequency conversion method and device for implementing the method
09/18/1990US4958308 Technique for improving the resolution of an A/D converter
09/18/1990US4958159 Digital-to-analog converter
09/18/1990US4958157 Encoder circuit with series connected output switching transistors
09/18/1990US4958156 A/D converter circuit for video signals having different time frequencies
09/18/1990US4958155 Ultra fast digital-to-analog converter with independent bit current source calibration
09/18/1990US4958139 Method and apparatus for automatically calibrating the gain and offset of a time-shifted digitizing channel
09/18/1990CA1274317A1 Digital to analog converter
09/18/1990CA1274316A1 Apparatus for converting digital values to analog values
09/13/1990DE3906917A1 Device for determining an angle of rotation
09/12/1990EP0386929A2 Reflective shaft angle encoder
09/11/1990US4956871 Improving sub-band coding of speech at low bit rates by adding residual speech energy signals to sub-bands
09/11/1990US4956795 Signal conditioners
09/11/1990US4956642 Superconducting analog to digital converter
09/11/1990US4956566 Circuit configuration with a generator system for path- or angle-dependent signals
09/11/1990US4956553 Optical encoder with varying grating pitch
09/07/1990WO1990003695A3 Process and device for converting the scanning signal of an analog input signal
09/07/1990WO1990003694A3 Process and device for converting an analog input signal
09/05/1990CN1045205A Multifunctional a/d, d/a converter
09/05/1990CN1045204A Variable duty cycle window detecting analog to digital converter
09/05/1990CN1009486B Capacitance type transducer for measuring positions
09/04/1990US4954831 Analog-to-digital converter
09/04/1990US4954827 Analog digital cascade converter
09/04/1990US4953933 Optical encoder reading device
08/1990
08/29/1990EP0384858A2 A fast settling voltage to frequency converter for high speed analog to digital conversion
08/29/1990EP0384399A2 Bipolar voltage to frequency converter
08/29/1990EP0384330A1 Method for position measurement by means of a resolver and a synchro
08/28/1990US4952799 Reflective shaft angle encoder
08/22/1990EP0383689A2 Digital-to-analog converter
08/22/1990EP0383151A1 Multistep flash analog to digital converter with voltage estimator
08/22/1990EP0179056B1 Extended threshold analog to digital conversion apparatus for an rf receiver
08/21/1990US4951054 Floating-point digital-to-analog converting system
08/21/1990US4951053 Method and apparatus for switching currents into the summing node of an integrating analog-to-digital converter
08/21/1990US4951051 Overload detector for an analog-to-digital converter
08/21/1990US4951048 Absolute linear position detection device
08/21/1990US4950891 High resolution optical encoder having a long detection stroke
08/16/1990DE4003758A1 A=D converter with several capacitors - has two switches, each coupled to one capacitor group, and switch matrix coupled to switches and capacitors
08/14/1990US4949383 Frequency domain speech coding
08/14/1990US4949168 For a transmission system
08/14/1990US4949087 Encoder device
08/14/1990US4948968 High resolution optical encoder having a long detection stroke
08/14/1990CA1272806A1 Optical detector circuit for photometric instrument
08/09/1990WO1990007234A3 Parallel analog-to-digital converter
08/08/1990EP0381217A2 Signal level detecting circuits
08/08/1990EP0380583A1 Sub-ranging a/d converter with improved error correction
08/08/1990EP0120956B1 Systems for providing digital representations of analog values
08/07/1990US4947173 Semiconductor integrated circuit
08/07/1990US4947172 Digital-to-analog conversion circuit
08/07/1990US4947171 Circuit arrangement for averaging signals during pulse-density D/A or A/D conversion
08/07/1990US4947169 Dummy/trim DAC for capacitor digital-to-analog converter
08/07/1990US4947168 Subranging analog-to-digital converter with calibration
08/07/1990US4947106 Programmatically generated in-circuit test of analog to digital converters
08/02/1990DE3901670A1 Method for increasing the resolution of an A/D converter and device for carrying out the method
08/01/1990EP0380456A2 Field programmable logic and analogic integrated circuit
08/01/1990EP0379586A1 Signal processor
08/01/1990CN1009034B Discrete cosine transform arrangement
07/1990
07/25/1990EP0378840A2 Digital to analog converter having single resistive string with shiftable voltage thereacross
07/25/1990EP0378777A2 Arrangement for converting analog signals into digital signals
07/24/1990CA1271996A1 Variable gain encoder apparatus and method
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