ClassID:

222531

H03M3/436 - 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 order of the loop filter, e.g. error feedback type

Sub-classes:
Recent Application in this class:
#1
20260095193
2026-04-02

MICRO-POWER CONTINUOUS-TIME DELTA-SIGMA ANALOG-TO-DIGITAL CONVERTER FOR AUDIO APPLICATIONS

#2
20260016346
2026-01-15

DIGITAL TEMPERATURE SENSOR, CORRESPONDING DEVICE AND METHOD

#3
20250141468
2025-05-01

COMPENSATION DEVICE AND METHOD FOR EXCESS LOOP DELAY USING TIME DIVISION SWITCHING TECHNIQUE

#4
20250038763
2025-01-30

ANALOG-TO-DIGITAL CONVERTER CIRCUIT, DIGITAL FILTER CIRCUIT, AND CONTROL METHOD THEREOF

#5
20250030437
2025-01-23

DELTA SIGMA MODULATION CIRCUIT, DIGITAL TRANSMISSION CIRCUIT, AND DIGITAL TRANSMITTER

#6
20240429881
2024-12-26

AUDIO AMPLIFICATION METHOD AND DEVICE

#7
20240406310
2024-12-05

CALL CONTENT MANAGEMENT FOR MOBILE DEVICES

#8
20240333835
2024-10-03

CALL CONTENT MANAGEMENT FOR MOBILE DEVICES

#9
20240333302
2024-10-03

DELTA-SIGMA MODULATOR WITH ANTI-WINDUP CIRCUIT

#10
20240313802
2024-09-19

AUDIO D/A CONVERTER

#11
20240063812
2024-02-22

Excess loop delay compensation for a delta-sigma modulator

#12
20230353672
2023-11-02

Call content management for mobile devices

#13
20230179223
2023-06-08

Pulse width modulation generated by a sigma delta loop

#14
20220345150
2022-10-27

Self-calibration circuit for delta-sigma modulators, corresponding device and method

#15
20220294433
2022-09-15

Analog-to-digital converter, phase sampler, time-to-digital converter, and flip-flop

#16
20220069838
2022-03-03

Pulse width modulation generated by a sigma delta loop

#17
20220045691
2022-02-10

SYSTEM AND METHOD TO COMPENSATE FOR FEEDBACK DELAYS IN DIGITAL CLASS-D MODULATORS

#18
20220014208
2022-01-13

Integrated circuit, electronic device including the same, and operating method thereof

#19
20210399734
2021-12-23

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

#20
20210218413
2021-07-15

Second-order ΔΣ modulator, radio, and signal processing method performed by second-order ΔΣ modulator

#21
20210144246
2021-05-13

Call content management for mobile devices

#22
20200412376
2020-12-31

Ring oscillator-based analog-to-digital converter

#23
20200389180
2020-12-10

Sigma-delta analog-to-digital converter circuit with correction for mismatch error introduced by the feedback digital-to-analog converter

#24
20200235749
2020-07-23

Sigma-delta analog-to-digital converter capable of reducing idle tones while alternately conducting signal conversion and comparator offset calibration

#25
20200153451
2020-05-14

Delta-sigma modulator and associated signal processing method

#26
20200083900
2020-03-12

Methods and circuits for suppressing quantization noise in digital-to-analog converters

#27
20190386676
2019-12-19

Continuous-time delta-sigma modulator

#28
20190238152
2019-08-01

Apparatuses and methods for sample rate conversion

#29
20190238151
2019-08-01

Analog-to-digital converter capable of generate digital output signal having different bits

#30
20190158111
2019-05-23

Interleaving quantizer in continuous-time delta-sigma modulator for quantization level increment

#31
20190044527
2019-02-07

A/D converter and sensor apparatus including the same

#32
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

#33
20180219559
2018-08-02

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

#34
20180109268
2018-04-19

Delta-sigma modulator

#35
20180054213
2018-02-22

Feed-forward operational amplifier noise cancellation technique and associated filter and delta-sigma modulator

#36
20180048326
2018-02-15

Techniques for improving mismatch shaping of dynamic element matching circuit within delta-sigma modulator

#37
20180034471
2018-02-01

High-linearity sigma-delta converter

#38
20170328712
2017-11-16

Digital controller for a MEMS gyroscope

#39
20170272094
2017-09-21

Analog to digital converter including differential VCO

#40
20170179975
2017-06-22

Dither injection for continuous-time MASH ADCS

#41
20170077946
2017-03-16

Delta-sigma modulator and method for signal conversion

#42
20170077944
2017-03-16

Conversion of a discrete-time quantized signal into a continuous-time, continuously variable signal

#43
20160373123
2016-12-22

Dither-less multi-stage noise shaping fractional-N frequency synthesizer systems and methods

#44
20160322982
2016-11-03

Multi-mode sampling/quantization converters

#45
20160182072
2016-06-23

Noise-shaping circuit, digital-to-time converter, analog-to-digital converter, digital-to-analog converter frequency synthesizer, transmitter, receiver, transceiver, method for shaping noise in an input signal

#46
20160087642
2016-03-24

Dither-less error feedback fractional-n frequency synthesizer systems and methods

#47
20160072521
2016-03-10

Delta-sigma modulator with reduced integrator requirements

#48
20160072520
2016-03-10

Sampling/quantization converters

#49
20160006445
2016-01-07

Asynchronous sample rate converter

#50
20150091745
2015-04-02

Sampling/quantization converters

#51
20150065198
2015-03-05

Analog-to-digital converter

#52
20150055738
2015-02-26

Dither-less error feedback fractional-N frequency synthesizer systems and methods

#53
20150055737
2015-02-26

Dither-less multi-stage noise shaping fractional-N frequency synthesizer systems and methods

#54
20140368368
2014-12-18

Continuous-time mash sigma-delta analogue to digital conversion

#55
20140028483
2014-01-30

Low-power sigma-delta converter

#56
20120127009
2012-05-24

Sampling/quantization converters

#57
20120075133
2012-03-29

Low-power sigma-delta converter

#58
20120068867
2012-03-22

Sampling/quantization converters

#59
20120056767
2012-03-08

Signal processing apparatus with sigma-delta modulating block collaborating with notch filtering block and related signal processing method thereof

#60
20110199247
2011-08-18

Sigma-delta modulator

#61
20110163900
2011-07-07

Multimode sampling/quantization converters

#62
20110095927
2011-04-28

Sampling/quantization converters

#63
20110095923
2011-04-28

Image sensing system

#64
20100328125
2010-12-30

Sampling/quantization converters

#65
20100207793
2010-08-19

Image sensing system

#66
20100033360
2010-02-11

Low cost analog to digital converter and a method for converting an analog signal to a digital signal

#67
20090041367
2009-02-12

Quantization method and apparatus

#68
20080084343
2008-04-10

Methods and systems for implementing a Digital-to-Analog Converter

#69
20070109163
2007-05-17

Dynamic comparator system

#70
20070013570
2007-01-18

System for analog-to-digital conversion

#71
20060087463
2006-04-27

Error feedback structure for delta-sigma modulators with improved stability

#72
20050093726
2005-05-05

Analog-to-digital conversion system with second order noise shaping and a single amplifier

#73
17098905
2022-01-04

Tracking analog-to-digital converter with adaptive slew rate boosting

#74
17014283
2022-01-25

Amplifiers

#75
16522033
2020-07-28

Increased noise performance using quantizer code suppression

#76
16407227
2020-09-22

Signal processor

#77
16179013
2020-04-07

Modified pi-sigma-delta-modulator based digital signal processing system for wide-band applications

#78
16143447
2019-12-17

Loop filter initialization technique

#79
15992646
2019-07-09

Programmable digital sigma delta modulator

#80
15671888
2018-08-07

Arbitrary noise shaping transmitter with receive band notches

#81
15647253
2018-01-02

Delta-sigma modulator with delta-sigma truncator and associated method for reducing leakage errors of delta-sigma modulator

#82
15582355
2018-02-27

Digital-to-analog converter and method of operating

#83
15470805
2018-07-10

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

#84
15401957
2017-09-12

Sigma-delta analog-to-digital converter with auto tunable loop filter

#85
15267356
2017-05-02

Continuous-time cascaded sigma-delta analog-to-digital converter

#86
15199473
2017-08-08

Delta-sigma modulator having multiple dynamic element matching shufflers

#87
15131423
2016-12-27

Delta-sigma analog-digital converter and method