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)
12/1991
12/03/1991US5070333 Frequency-to-digital converter using a combined counted and time method
12/03/1991US5070332 Two-step subranging analog to digital converter
12/03/1991US5070331 High resolution D/A converter operable with single supply voltage
12/03/1991US5070238 Rotary encoder having circular magnet
11/1991
11/28/1991WO1991018361A1 Method and apparatus for encoding and decoding using wavelet-packets
11/28/1991WO1991010288A3 Position sensor
11/27/1991EP0458659A2 Semiconductor integrated circuit device for supplying a bias current to DA converters
11/27/1991EP0458527A2 Improved analog to digital and digital to analog signal processors
11/27/1991EP0458518A1 Voltage divider for high-speed high-precision signal converting unit
11/27/1991EP0458515A2 Method and apparatus for testing delta-sigma modulators
11/27/1991EP0458407A2 Sampling an analogue signal voltage
11/26/1991US5068662 Neural network analog-to-digital converter
11/26/1991US5068658 Method and apparatus for analog-to-digital conversion
11/26/1991US5068657 Method and apparatus for testing delta-sigma modulators
11/26/1991US5068580 Electrical beam switch
11/26/1991US5068529 Absolute position detection encoder
11/25/1991CA2042539A1 Analog to digital and digital to analog signal processors
11/21/1991EP0457749A1 High-accuracy charge-balance analog-digital converter
11/21/1991EP0457496A2 Digital-to-analogue converter
11/21/1991DE4115484A1 Analog/digital-wandler Analog / digital converter
11/21/1991DE4015860A1 D=A converter for microcomputer - supplies several, different points of digital signal representing pulse width modulated signals to adder
11/19/1991US5067089 Device having signal interpolation circuit and displacement measuring apparatus comprising the device
11/19/1991US5066955 Analog to digital converters with convergence accelerating signals
11/19/1991US5066954 Analog to digital converter with reference voltage control and analog style display
11/19/1991US5066953 Position measuring apparatus with a subdivision circuit for subdividing sinusoidal scanning signals
11/13/1991EP0247184A4 Displacement measuring apparatus
11/12/1991US5065351 Stabilization and calibration of precision electronic circuit component
11/12/1991US5065159 Digital to analog converter with switching logic minimization
11/12/1991US5065081 Zero error digital servo system
11/12/1991US5065057 Analog signal input circuit
11/05/1991US5063597 Muting circuit in a digital audio system
11/05/1991US5063383 System and method for testing analog to digital converter embedded in microcontroller
11/05/1991US5063382 Construction for mounting a cap to a magnetic type rotary encoder
10/1991
10/31/1991DE4013936A1 Optical absolute encoder for measuring angular increments - uses image information mask cooperating with CCD sensor or LED array
10/30/1991EP0454406A1 Multi-stage sigma-delta analog-to-digital converter
10/29/1991US5061927 Floating point analog to digital converter
10/29/1991US5061926 AD converter using successive comparison
10/29/1991US5061925 Phase equalization system for a digital-to-analog converter utilizing separate digital and analog sections
10/29/1991US5061862 Reference voltage generating circuit
10/23/1991EP0452805A2 A/D conversion circuit for digitizing analog television signals
10/23/1991EP0452609A1 High resolution monolithic integrated analog-digital converter
10/23/1991EP0452450A1 Analogue to digital converter
10/22/1991US5060268 Speech coding system and method
10/22/1991US5060178 System for analog-digital-analog conversion
10/22/1991US5060156 Method and apparatus for determining engine oil change intervals according to actual engine use
10/22/1991US5059982 Back-sampling analog to digital converter
10/22/1991US5059981 Arrangement and method for coverting an analog voltage signal to a digital signal utilizing the absolute value of the analog signal
10/22/1991US5059980 Non-linear analog to digital converter
10/22/1991US5059978 Resistor-string digital to analog converters with auxiliary coarse ladders
10/22/1991US5059977 Synchronizing switch arrangement for a digital-to-analog converter to reduce in-band switching transients
10/17/1991WO1991015899A1 Analogue to digital converter
10/16/1991CN1055453A Third order sigma delta oversampled analog-to-digital converter network with low component sensitivity
10/16/1991CN1014385B Multifunctional a/d, d/a converter
10/15/1991US5057841 Analog-to-digital converter
10/15/1991US5057838 D/a converter having centered switching sequence and centered arrangement of converter segment groups
10/15/1991US5057771 Phase-locked timebase for electro-optic sampling
10/09/1991CN1014289B Digital-to-analog converter
10/08/1991US5055847 Differential sensing current-steering analog-to-digital converter
10/08/1991US5055845 Signal digitizing method and system utilizing time delay of the input signal
10/08/1991US5055844 Digital to analog converter
10/02/1991EP0449342A1 Current divider
10/02/1991EP0449014A2 Charge domain successive approximation analog to digital converter
10/02/1991EP0448754A1 Two-wire-four-wire converter
10/02/1991EP0448753A1 Two-wire-four-wire converter
10/02/1991EP0448590A1 Predictive coding and decoding.
10/02/1991EP0142703B1 A method for determining an unknown voltage and dual slope analog-to-digital converter
10/01/1991US5053771 Adaptive dual range analog to digital converter
10/01/1991US5053770 Digital autozero circuit operable in a plurality of modes with separate storage for offset corrections for each mode
10/01/1991US5053715 Capacitance-type measuring device for absolute measurement of positions
10/01/1991US5052389 Low-power A/D converter for an implantable medical device and method of use
09/1991
09/26/1991DE4009383A1 A=D converter coupling multiplexer to computer - derives corrections in two stages to compensate gain and offset errors
09/25/1991EP0448328A2 Digital-to-analog converter having a circuit for compensating for variation in output dependent on temperature change
09/25/1991EP0447833A2 Low noise dac current source topology
09/25/1991CN1054849A Storage for acquisition of wave forms
09/24/1991US5051746 Interpolation circuit for use in an A/D converter
09/24/1991US5051729 Pressure responsive encoder
09/24/1991CA1289666C Digital-to-analog converting system
09/24/1991CA1289665C2 Analog-to-digital converter
09/18/1991EP0447117A2 Built-in self test for analog to digital converters
09/18/1991EP0446880A2 Current mode multiplexed sample & hold circuit
09/18/1991EP0446639A2 Parallel AD-converter
09/18/1991EP0446257A1 Successive-approximation register
09/18/1991EP0446239A1 Digital to amplitude modulated analog converter
09/17/1991US5049882 High speed analog-to-digital converter
09/17/1991US5049879 Position encoder utilizer special gray code
09/17/1991CA1289250C Oversampling a/d converter comprising an additional capacitor switched in synchronism with switching of an input capacitor
09/16/1991CA2038415A1 Current mode multiplexed sample & hold circuit
09/12/1991DE4007660A1 High accuracy D=A converter - uses decoder, current switches, summing amplifier and differential amplifier
09/12/1991DE4007659A1 Precision D=A converter using decoder and current switches - ascertains which binary valve has most significant bit and forms residual word from lowest valve bits
09/11/1991CN1013913B Analogue /digital converter of current model
09/10/1991US5048059 Log-polar signal processing
09/10/1991US5047772 Digital error correction system for subranging analog-to-digital converters
09/10/1991US5047771 Apparatus for implementation of desired input/output function in an electronic system having a plurality of channels
09/10/1991US5047769 Methods of correcting data conversion/transfer errors in a vibratory energy imaging system utilizing a plurality of channels
09/10/1991US5047716 Movement detector employing constant current drive
09/10/1991US5047665 Low noise, low offset, high speed CMOS differential amplifier
09/05/1991WO1991013506A1 Hybrid analog/digital signal processing
09/05/1991DE4005758A1 A=D converter with digital value detector - subtracts comparison value of corresp. bit setting
09/04/1991EP0444890A2 Full flash analog-to-digital converter
09/04/1991EP0444884A2 Method of orthogonal transform coding/decoding
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