Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › H03M 3 - Conversion of analogue values to or from differential modulation
Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070)
06/1996
06/25/1996US5530722 Quadrature modulator with integrated distributed RC filters
06/25/1996US5530442 Circuit and method for testing a dithered analog-to-digital converter
06/18/1996US5528240 Digital phase-locked loop utilizing a high order sigma-delta modulator
06/18/1996US5528239 Low noise transmission of output data from a delta-sigma modulator
06/13/1996WO1996018242A1 Sigma-delta modulator with reduced delay from input to output
06/04/1996US5523719 Component insensitive, analog bandpass filter
05/1996
05/30/1996WO1996016482A1 Variable sample rate adc
05/28/1996US5521549 Stabilization of closed-loop power controllers
05/23/1996WO1996015484A2 Monolithic pc audio circuit
05/22/1996EP0712549A1 Data-directed scrambler for multi-bit noise-shaping d/a converters
05/09/1996WO1996013903A1 Analog-to-digital converter and sensor device comprising such a converter
05/09/1996CA2204123A1 Analog-to-digital converter and sensor device comprising such a converter
05/08/1996CN1122073A An oversampling DA converter
05/07/1996US5515046 Method and apparatus for multiplexed oversampled analog to digital modulation
05/07/1996US5514999 Differential switched capacitor circuit
05/02/1996DE19535615A1 Data acquisition system for computer tomography scanner
05/01/1996EP0709971A2 Sigma-delta analog to digital converter with three point calibration apparatus and method
05/01/1996EP0709970A2 DC correction arrangement for an analogue to digital converter
05/01/1996EP0709969A2 Sigma-delta modulator
05/01/1996CN1121759A Differential coding and decoding method and related circuits
04/1996
04/30/1996US5512897 Variable sample rate DAC
04/18/1996WO1996008865A3 Quadrature modulator with integrated distributed rc filters
04/09/1996US5506798 Digital filter and oversampling analog to digital converter employing the same
04/03/1996EP0704980A2 Analog-digital converter using Delta Sigma modulation
03/1996
03/21/1996WO1996008865A2 Quadrature modulator with integrated distributed rc filters
03/21/1996CA2199935A1 Quadrature modulator with integrated distributed rc filters
03/19/1996US5500645 Analog-to-digital converters using multistage bandpass delta sigma modulators with arbitrary center frequency
03/05/1996US5497152 Digital-to-digital conversion using non-uniform sample rates
02/1996
02/28/1996CN1117686A Receiver with sigma-delta analog-to-digital conversion for digital signals buried in TV signals
02/20/1996US5493297 Quantization noise reduction in oversampled analog-to-digital signal conversion
02/20/1996US5493296 Noise shaping circuit and noise shaping method
02/14/1996EP0696404A1 Differential coding and decoding method and related circuits
02/08/1996DE19518508A1 Kostengünstiger Sigma-Delta-Modulator Cost-effective sigma-delta modulator
02/07/1996EP0695481A1 Switched capacitor one-bit digital to analog converter and sigma delta modulator using the same
02/07/1996EP0381764B1 Analog operation circuit
02/06/1996US5489903 Digital to analog conversion using non-uniform sample rates
01/1996
01/31/1996CN1115922A Bandpass sigma-delta analog-to-digital converter (ADC), method therefor, and receiver using same
01/24/1996CN1115591A Apparatus for and method of speech digitizing
01/18/1996WO1996001525A1 Improved sigma-delta fm demodulator
01/16/1996US5485152 Analog to digital conversion using non-uniform sample rates
01/09/1996US5483555 Phase adjusting circuit for a demodulator
01/09/1996US5483238 For converting a signal from one form to another
01/03/1996EP0559732B1 Digital data converter
12/1995
12/21/1995WO1995034955A1 Oversampled high-order modulator
12/19/1995US5477481 Switched-capacitor integrator with chopper stabilization performed at the sampling rate
12/14/1995WO1995034134A1 Switched-capacitor one-bit digital-to-analog converter with low sensitivity to op-amp offset voltage
12/13/1995EP0686323A1 One-bit analog-to-digital converters and digital-to-analog converters using an adaptive filter having two regimes of operation
12/07/1995DE4441043C1 A=D signal conversion method for magnetic-inductive flowmeter
11/1995
11/28/1995US5471209 Sigma-delta converter having a digital logic gate core
11/21/1995US5469475 Transmitter comprising an eletronic arrangement for generating a modulated carrier signal
11/21/1995CA2048645C Multiaccumulator sigma-delta fractional-n synthesis
11/15/1995EP0682265A1 Circuit and method for testing a dithered analog-to-digital converter
11/01/1995CN1111045A Method and apparatus for extending the reslution of a sigma-delta type analog to digital converter
10/1995
10/24/1995US5461641 Decimation filter for a sigma-delta converter and A/D converter using the same
10/24/1995US5461425 CMOS image sensor with pixel level A/D conversion
10/24/1995US5461381 Sigma-delta analog-to-digital converter (ADC) with feedback compensation and method therefor
10/17/1995US5459464 Frequency modulated integrator circuit
10/11/1995EP0676867A2 Method and apparatus for extending the resolution of a sigma-delta type analog to digital converter
10/11/1995EP0448590B1 Predictive coding and decoding
10/11/1995CN1030026C High order sigma delta oversampled analog-to-digital couverter integrated circuit network with minimal power dissipation and chip area reguirements
10/10/1995US5457714 Software controlled adaptive delta modulator
10/10/1995US5457456 Data converter with programmable decimation or interpolation factor
10/04/1995EP0675604A1 Integrating analog-digital converter
09/1995
09/28/1995WO1995026079A1 Circuit for conditioning and digitising an analogue signal
09/28/1995DE4409708A1 Schaltungsanordnung zur Aufbereitung und A/D-Wandlung eines analogen Signals A circuit arrangement for processing and A / D conversion of an analog signal
09/27/1995EP0673576A1 Apparatus for and method of speech digitizing
09/20/1995EP0673114A1 Filtering method with ameliorated noise characteristics for a series of digital values and circuit for implementing the method
09/19/1995US5452405 Method and apparatus for delta row decompression
09/19/1995US5451950 Method for reducing errors in switched-capacitor digital-to-analog converter systems and apparatus therefor
09/19/1995US5451949 One-bit analog-to-digital converters and digital-to-analog converters using an adaptive filter having two regimes of operation
09/08/1995WO1995024077A1 Sigma-delta converter having a digital logic gate core
09/05/1995US5448202 Sigma-delta FM demodulator
08/1995
08/31/1995WO1995023456A1 High level type ⊤δ analog-to-digital converter
08/31/1995CA2182897A1 High level type ?.delta. analog-to-digital converter
08/29/1995US5446460 Fourth-order cascaded sigma-delta modulator
08/17/1995WO1995022180A1 Cmos image sensor with pixel level a/d conversion
08/15/1995US5442354 Fourth-order cascaded sigma-delta modulator
08/15/1995US5442353 Bandpass sigma-delta analog-to-digital converter (ADC), method therefor, and receiver using same
08/15/1995US5442352 Linear attenuator for current-mode digital-to-analog converter (DAC) or the like
08/09/1995EP0666650A2 Method for the fast decoding of the output signals of sigma delta modulators
07/1995
07/26/1995CN1105795A Design method and device for pure electronic digital sounder
07/20/1995DE19500160A1 Empfänger mit Sigma-Delta Analog-Digital-Wandlung für in Fernsehsignalen eingebettete digitale Signale Receiver with sigma-delta analog-to-digital conversion for embedded in television signals digital signals
07/19/1995EP0663729A1 Linear attenuator for current-mode digital-to-analog converter (DAC) or the like
07/18/1995US5434564 Method and apparatus for producing pulses corresponding in number to the amount of changes in a physicial quantity
06/1995
06/28/1995EP0660532A2 Device and method for digitally shaping the quantization noise of an n-bit digital signal, such as for digital-to-analog conversion
06/28/1995EP0660530A1 Cascaded sigma-delta modulators
06/28/1995EP0660527A1 Data converter with gain scaling including dither
06/28/1995EP0660224A1 Data converter with barrel shifter
06/28/1995EP0660222A1 Data converter with fifo
06/21/1995EP0658979A2 Data converter with programmable decimation or interpolation factor
06/14/1995EP0658008A2 Sigma-delta analog-to-digital converter (ADC) with feedback compensation and method therefor
06/14/1995EP0658007A1 Circuit for the analog-digital conversion of IF-signals
06/13/1995US5424739 Device and method for digitally shaping the quantization noise of an N-bit digital signal, such as for digital-to-analog conversion
06/07/1995CN1028826C Method and device for processing analog signal
05/1995
05/31/1995EP0573409B1 Interpolative analog/digital converter for band-pass signals
05/31/1995CN1103218A Circuit for processing signals
05/30/1995US5420892 Stabilized noise shaper of a small scale having a suppressed quantization noise in high frequency region without deteriorating S/N ratio
05/30/1995US5420584 Data converter with barrel shifter
05/17/1995EP0653855A1 A differential switched capacitor circuit
05/16/1995US5416525 Method and apparatus for digitally coding and decoding a composite signal, containing baseband and out-of-band signals using relatively few bits and yielding a decoded out-of-band signal having increased quality
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