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)
05/1990
05/08/1990US4924225 Analog to digital converter with integral linearity error compensation and method of operation
05/08/1990US4924224 High-accuracy A/D converter
05/08/1990US4924223 Digital code converter formed of a decreased number of circuit elements
05/08/1990US4924081 Photo-electric converter having offset voltage correcting function
05/03/1990WO1990004884A1 Analog to digital converter
05/03/1990WO1990004756A1 Rotary encoder
05/03/1990DE3836823A1 Device and method for increasing the resolution in the analogue/digital conversion of signals with a DC component
05/02/1990EP0366517A1 Parallel analog-digital converter with an error-correcting circuit
05/02/1990EP0366229A2 Noise-reducing analog-to-digital converters
05/02/1990EP0365717A1 Method and apparatus for the conversion of an analogous input signal
05/01/1990US4922252 Analog/digital converter with capacitor network
05/01/1990US4922250 Superconducting analog-to-digital converter with bidirectional counter
05/01/1990US4922247 Encoder mount
05/01/1990US4922235 Encoding device for multiple consecutive position detection
05/01/1990US4922130 High performance track/hold for a digital multimeter
04/1990
04/25/1990EP0364909A2 A/D converter
04/24/1990US4920344 Digitally compensated multiplying digital to analog converter
04/24/1990US4920341 Magnetic rotary encoder device
04/24/1990US4920259 Apparatus for producing a phase insensitive index pulse for motion encoders
04/24/1990CA1268256A1 Interpolation method and shaft angle encoder
04/19/1990WO1990004289A1 Digital-to-analog converter with on-board unity gain inverting amplifier
04/19/1990WO1990004219A1 Circuit arrangement for digitally recording analog information, in particular the time interval between two consecutive states of a signal
04/18/1990EP0364273A2 Digital demodulator system
04/18/1990EP0363426A1 Absolute position sensor using multiple wavelengths of offset pitch phase patterns
04/17/1990US4918454 Compensated capacitors for switched capacitor input of an analog-to-digital converter
04/17/1990US4918453 A/D converter having multiplication function
04/17/1990US4918451 A/D converter with prevention of comparator output discontinuities
04/17/1990US4918450 Analog/digital converter circuit
04/17/1990US4918449 Multistep flash analog to digital converter with voltage estimator
04/17/1990US4918448 Device for extending the resolution of a N-bit resistive digital-to-analog converter to a (N+P)-bit digital-to-analog converter
04/17/1990US4918447 Integrated D/A converter including means for reducing glitches
04/11/1990EP0362407A1 Power supply apparatus
04/11/1990CN1041230A Current-source arrangement
04/10/1990US4916449 Wide dynamic range digital to analog conversion method and system
04/10/1990CA1267731A1 Serial digital signal processing circuitry
04/05/1990WO1990003699A1 Log-polar signal processing
04/05/1990WO1990003695A2 Process and device for converting the scanning signal of an analog input signal
04/05/1990WO1990003694A2 Process and device for converting an analog input signal
04/05/1990DE3925541A1 Codierschalter Coding
04/04/1990EP0362190A2 Position transmitter
04/04/1990EP0361965A2 Pulse width modulation type digital-to-analog converter
04/04/1990EP0361867A2 Apparatus for producing a phase insensitive index pulse for motion encoders
04/04/1990EP0360936A1 Method for the conversion of a sampled analog input signal
04/04/1990EP0360922A1 Self-calibrating A/D and D/A converters
04/04/1990EP0360919A1 Method for determining and processing correction values for autocalibrating A/D and D/A converters, and calculating unit for carrying out the method
04/04/1990EP0360914A1 Self-calibrating A/D and D/A converters
04/04/1990EP0360885A1 Method for modifying the signal-to-noise ratio of proximity sensors, and arrangement for carrying out this method
04/03/1990US4914440 Adjustable current source and digital/analog converter with autocalibration using such a source
04/03/1990US4914439 Analog to digital conversion system utilizing dither
04/03/1990US4914437 Encoder for measuring both incremental and absolute positions of moving elements
03/1990
03/28/1990EP0360770A1 Log-polar signal processing
03/28/1990EP0360514A1 Incremental optical encoder
03/28/1990EP0360499A2 Analog-to-digital converter
03/28/1990EP0256076B1 Analogue to digital conversion: method and apparatus therefor
03/27/1990US4912763 Process for multirate encoding signals and device for implementing said process
03/27/1990US4912728 Analog-to-digital converter for stepped square QAM demodulators
03/27/1990US4912470 Ad converter
03/27/1990US4912469 Interpolation circuit for use in A/D converter
03/27/1990US4912468 Non-linear error correction system
03/22/1990WO1990003066A1 Subranging analog-to-digital converter without delay line
03/21/1990EP0359508A2 Sequential-quenching resonant-tunneling transistor
03/21/1990EP0359315A1 Current-source arrangement
03/21/1990EP0247065B1 An untrimmed 12 bit monotonic all capacitive a to d converter
03/20/1990US4910516 Integrated dual-slope analog to digital converter with R/C variance compensation
03/20/1990US4910515 Digital signal processing circuit
03/20/1990US4910514 D/A converter
03/15/1990DE3829636A1 Position sensing system
03/14/1990EP0358184A2 Reproduction of halftone original with moire reduction and tone adjustment
03/14/1990EP0357616A1 Process and device for compensating errors of measurement.
03/14/1990EP0118673B1 Measurement device
03/13/1990US4908875 Adaptive thresholding technique
03/13/1990US4908624 Successive approximation type A/D converter
03/13/1990US4908623 Apparatus and method for range control and supply voltage compensation in a dual slope analog to digital converter
03/13/1990US4908622 Process and circuit for sampling according to instantaneous signal value, independent from the frequency range of the signal to be recorded
03/13/1990US4908621 Autocalibrated multistage A/D converter
03/13/1990US4908620 Analog-to-digital and digital-to-analog converter
03/08/1990DE3829357A1 Logarithmating analog/digital converter
03/07/1990EP0356438A1 Process and arrangement for evaluating a measurable analog electronic quantity.
03/06/1990US4907165 Electric energy measuring method
03/06/1990US4907002 Successive approximation analog to digital converter
03/06/1990US4906997 CCD device adapted for changing signal formats
03/06/1990US4906996 Analog-to-digital converter with offset voltage polarity inversion
03/06/1990US4906992 Single track absolute encoder
03/06/1990US4906846 Displacement detector for detecting an amount of displacement of an object to be measured
03/01/1990DE3928027A1 Absolute coder using coding disc - has two detectors as unit, set at preset spacing along sign pattern track on-disc
03/01/1990DE3921312A1 High resolution absolute coder with movable coding carrier - uses scanning beam deflectable in coding carrier movement direction
03/01/1990DE3828456A1 Measuring device for recording angle of rotation (revolution), direction (sense) of rotation and torque
02/1990
02/28/1990EP0355835A2 Self-timing analog-to-digital converting system
02/28/1990EP0222508B1 Video level control
02/27/1990US4905177 High resolution phase to sine amplitude conversion
02/27/1990US4905006 Digital-to-analog converter
02/27/1990US4905005 Logarithmic converters and their application to the measurement of transmitted light
02/27/1990US4904937 Apparatus for magnetically detecting positions with minimum length magnetic information units recorded on a plurality of magnetic tracks
02/27/1990US4904922 Apparatus for converting between digital and analog values
02/27/1990US4904861 Optical encoder using sufficient inactive photodetectors to make leakage current equal throughout
02/22/1990WO1990001835A1 Error limiting analog to digital converter
02/20/1990US4903028 Analog-to-digital converter
02/20/1990US4903027 A/D converter comprising encoder portion having function of multiplying analogue input by digital input
02/20/1990US4903026 Architecture for high sampling rate, high resolution analog-to-digital converter system
02/20/1990US4903024 A/D converter system with error correction and calibration apparatus and method
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