ClassID:

222564

H03M3/506 - CPC Classification

Classification description:

Conversion of analogue values to or from differential modulation; Delta-sigma modulation; Digital/analogue converters using delta-sigma modulation as an intermediate step; Details of the final digital/analogue conversion following the digital delta-sigma modulation the final digital/analogue converter being constituted by a pulse width modulator

Recent Application in this class:
#1
20220224351
2022-07-14

D/A conversion device, method, storage medium, electronic musical instrument, and information processing apparatus

#2
20210305997
2021-09-30

Device comprising a sensor, controller and corresponding methods

#3
20200204193
2020-06-25

Suppression of noise of delta-sigma modulators

#4
20200195271
2020-06-18

Image processing apparatus and image processing method

#5
20190372588
2019-12-05

D/A conversion device, method, storage medium, electronic musical instrument, and information processing apparatus

#6
20190305994
2019-10-03

Method and apparatus for generating at least one RF signal

#7
20190096376
2019-03-28

D/A converter, electronic musical instrument, information processing device and D/A conversion method

#8
20180241596
2018-08-23

Method and apparatus for spectrum spreading of a pulse-density modulated waveform

#9
20170338983
2017-11-23

Method and apparatus for spectrum spreading of a pulse-density modulated waveform

#10
20160336957
2016-11-17

Circuit and method for pulse width modulation

#11
20160330053
2016-11-10

Method and apparatus for spectrum spreading of a pulse-density modulated waveform

#12
20160043709
2016-02-11

Signal conversion system and method

#13
20150295619
2015-10-15

Method and apparatus for spectrum spreading of a pulse-density modulated waveform

#14
20150270848
2015-09-24

D/A conversion apparatus, D/A conversion method and electric musical instrument

#15
20150110299
2015-04-23

Method and device for driving digital speaker based on code conversion

#16
20150015426
2015-01-15

Signal conversion system and method

#17
20140354353
2014-12-04

Device having a delta-sigma modulator and a switching amplifier connected thereto

#18
20130234872
2013-09-12

Delta-sigma D/A converter

#19
20120293345
2012-11-22

Successive approximation register (SAR) analog-to-digital converter (ADC) having optimized filter

#20
20120039376
2012-02-16

Digital power management using serial data transfer

#21
20110102223
2011-05-05

Amplifier with digital input and digital PWM control loop

#22
20110075768
2011-03-31

Successive approximation register (SAR) analog-to-digital converter (ADC) having optimized filter

#23
20110043398
2011-02-24

Cascaded DAC architecture with pulse width modulation

#24
20100329482
2010-12-30

AUDIO DIGITAL TO ANALOG CONVERTER AND AUDIO PROCESSING APPARATUS INCLUDING THE SAME

#25
20100156687
2010-06-24

Control apparatus for a load supply device

#26
20100117730
2010-05-13

D/A converter circuit and digital input class-D amplifier

#27
20090016424
2009-01-15

Systems and methods for digital control utilizing oversampling

#28
20080316073
2008-12-25

Digital-to-analog converter and distortion correction circuit

#29
20080278361
2008-11-13

Asymmetric PWM signal generator, method thereof, and data processing apparatus including the same

#30
20080180293
2008-07-31

Pulse width modulation method and digital analogue converter using the same

#31
20080084343
2008-04-10

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

#32
20070291833
2007-12-20

Method of and apparatus to generate pulse width modulated signal from sampled digital signal by chaotic modulation

#33
20070194827
2007-08-23

Device and method for pulse width modulation

#34
20070182610
2007-08-09

Systems and methods for digital control utilizing oversampling

#35
20070176815
2007-08-02

Systems and methods for minimizing delay in a control path

#36
20070176810
2007-08-02

Pulse width modulation in digital power amplifier

#37
20070152858
2007-07-05

Delta-sigma modulator circuit with limiter and method therefor

#38
20070083277
2007-04-12

Low noise digital to pulse width modulated converter with audio applications

#39
20060279355
2006-12-14

Digital-to-analog converter

#40
20060232351
2006-10-19

Digital pulse width controlled oscillation modulator

#41
20060187099
2006-08-24

Delta-sigma modulator and its application to switching amplification circuit

#42
20060158359
2006-07-20

Pulse width modulator quantisation circuit

#43
20060077084
2006-04-13

Audio player using sigma-delta pulse-width modulation

#44
20060072657
2006-04-06

Pulse width-modulated noise shaper

#45
20050285670
2005-12-29

Audio amplifier

#46
20050231410
2005-10-20

Schemes to implement multi-level PWM in digital system

#47
20050122241
2005-06-09

Word length reduction circuit

#48
20050110667
2005-05-26

Method and apparatus for converting PCM to PWM

#49
20050052304
2005-03-10

Data converters with ternary pulse width modulation output stages and methods and systems using the same

#50
20050046601
2005-03-03

PCM-to-PWM converter

#51
20050035891
2005-02-17

Digital-to-analog converter with level control

#52
20050007266
2005-01-13

Sigma-delta modulator with PWM output

#53
16717371
2021-01-05

Method of controlling resolution of digital pulse width modulation

#54
15936034
2019-06-18

Segmented digital-to-analog converter (DAC)

#55
15925705
2019-03-26

System and method for implementing finite impulse response filter in an audio processor

#56
15390774
2017-04-11

Apparatus for differential amplitude pulse width modulation digital-to-analog conversion and method for encoding output signal thereof