ClassID:

222530

H03M3/434 - CPC Classification

Classification description:

Conversion of analogue values to or from differential modulation; Delta-sigma modulation; Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one with multi-level feedback

Recent Application in this class:
#1
20230038361
2023-02-09

Sigma-delta analog-to-digital converter

#2
20200169231
2020-05-28

Class-D amplifier and method

#3
20190334545
2019-10-31

Charge-based digital to analog converter with second order dynamic weighted algorithm

#4
20190103876
2019-04-04

Methods and apparatus for modulo sampling and recovery

#5
20190089368
2019-03-21

Apparatus for reducing wandering spurs in a fractional-N frequency synthesizer

#6
20190007057
2019-01-03

Delta modulator with variable feedback gain, analog-to-digital converter including the delta modulator, and communication device including the delta modulator

#7
20180109231
2018-04-19

Analog-to-digital converters and methods

#8
20160209243
2016-07-21

Direct coupling of a capacitive sensor to a delta-sigma converter

#9
20160204751
2016-07-14

Class-D amplifiers and methods

#10
20120229317
2012-09-13

Method for using a sensor system having a single-bit quantizer and a multi-bit feedback loop

#11
20120213531
2012-08-23

Ultra-high-speed photonic-enabled ADC based on multi-phase interferometry

#12
20120092200
2012-04-19

Sigma-delta modulator

#13
20120038500
2012-02-16

Low power high dynamic range sigma-delta modulator

#14
20110095923
2011-04-28

Image sensing system

#15
20100259431
2010-10-14

System and method for bandpass sigma-delta modulation

#16
20100207793
2010-08-19

Image sensing system

#17
20090140897
2009-06-04

Gain matching method and system for single bit gain ranging analog-to-digital converter

#18
20090085785
2009-04-02

DIGITAL-TO-ANALOG CONVERTER CALIBRATION FOR MULTI-BIT ANALOG-TO-DIGITAL CONVERTERS

#19
20090079606
2009-03-26

Implantable medical device with low power delta-sigma analog-to-digital converter

#20
20060055581
2006-03-16

Five-level feed-back digital-to-analog converter for a switched capacitor sigma-delta analog-to-digital converter

#21
15470805
2018-07-10

Systems and methods for fast delta sigma modulation using parallel path feedback loops