ClassID:

222461

H03M1/822 - CPC Classification

Classification description:

Analogue/digital conversion; Digital/analogue conversion; Digital/analogue converters with intermediate conversion to time interval using pulse width modulation

Sub-classes:
Recent Application in this class:
#1
20250253861
2025-08-07

SYSTEMS AND METHODS FOR DATA SIGNAL MULTIPLEXING

#2
20250158634
2025-05-15

Systems and Methods for Digital Signal Synthesis with Variable Sample Rate DAC

#3
20240429929
2024-12-26

CIRCUITRY COMPRISING A LOOP FILTER

#4
20240305311
2024-09-12

Analog to pulse width modulation (PWM) circuit

#5
20240291501
2024-08-29

FINITE IMPULSE RESPONSE INPUT DIGITAL-TO-ANALOG CONVERTER

#6
20240214002
2024-06-27

Voltage identification signal decoder with precharging

#7
20240162909
2024-05-16

METHOD OF CORRECTING A DATA STREAM OF A PULSE DENSITY MODULATOR

#8
20240088844
2024-03-14

AUDIO AMPLIFICATION METHOD AND DEVICE

#9
20240072821
2024-02-29

DIGITAL-TO-TIME CONVERTER MISMATCH COMPENSATION

#10
20230132872
2023-05-04

Circuitry comprising a loop filter

#11
20220345121
2022-10-27

Wave-generation circuit and operation system utilizing the same

#12
20210234552
2021-07-29

PWM DAC with improved linearity and insensitivity to switch resistance

#13
20200382130
2020-12-03

Signal processing apparatus, signal processing method, and program

#14
20200300629
2020-09-24

FTR loop of a gyro apparatus

#15
20200228076
2020-07-16

Digital-to-analog converter and amplifier for headphones

#16
20200195271
2020-06-18

Image processing apparatus and image processing method

#17
20200144996
2020-05-07

Pulse-width modulation

#18
20200028722
2020-01-23

Methods and apparatus for wideband and fast chirp generation for radar systems

#19
20190379389
2019-12-12

Closed loop control in a camera module

#20
20190370640
2019-12-05

Architecture of in-memory computing memory device for use in artificial neuron

#21
20190306945
2019-10-03

Pulse-width-modulation control of micro light emitting diode

#22
20190103862
2019-04-04

Pulse-width modulation

#23
20190028069
2019-01-24

Digital amplifier

#24
20180241596
2018-08-23

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

#25
20180048295
2018-02-15

Adjustable time duration for driving pulse-width modulation (PWM) output to reduce thermal noise

#26
20170338983
2017-11-23

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

#27
20170093280
2017-03-30

Digitally compensated hysteretic power supply with enhanced resolution

#28
20160330053
2016-11-10

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

#29
20160299519
2016-10-13

Zero drift, limitless and adjustable reference voltage generation

#30
20160142071
2016-05-19

Receiver, transmitter, method for determining a value encoded in a PWM signal, and method for transmitting a value encoded in a PWM signal

#31
20150303939
2015-10-22

Phase multiplexer

#32
20150295589
2015-10-15

Converting time-encoded signal into analog output

#33
20150249446
2015-09-03

System, method and apparatus having improved pulse width modulation frequency resolution

#34
20150156044
2015-06-04

Parallel digital-to-time converter architecture

#35
20140328381
2014-11-06

Electronic device, communication method, audio device and amplifier device using pulse density modulation for communication

#36
20140185663
2014-07-03

Integrated circuit, communication unit and method for improved amplitude resolution of an RF-DAC

#37
20140055296
2014-02-27

Time-to-digital converting circuit and digital-to-time converting circuit

#38
20130234874
2013-09-12

Digital-to-analog converter

#39
20130141266
2013-06-06

Analog to digital converter and digital to analog converter

#40
20130057244
2013-03-07

Duty ratio/voltage conversion circuit

#41
20130009798
2013-01-10

Digital-to-analog conversion with combined pulse modulators

#42
20120262321
2012-10-18

Analog to digital converter and digital to analog converter

#43
20120242522
2012-09-27

Data converter circuit and method

#44
20120133417
2012-05-31

Analog conversion of pulse width modulated signals

#45
20120086474
2012-04-12

Field device for process automation

#46
20110267127
2011-11-03

Integrated circuit, communication unit and method for improved amplitude resolution of an RF-DAC

#47
20110187572
2011-08-04

Method and device for converting a digital input signal to an analog output signal

#48
20110169679
2011-07-14

Digital to-analog converter

#49
20110121880
2011-05-26

DC offset cancellation circuit

#50
20110050467
2011-03-03

Noise-shaped scrambler for reduced out-of-band common-mode interference

#51
20100302085
2010-12-02

Field Device Having an Analog Output

#52
20100289546
2010-11-18

Digital signal converter

#53
20100245139
2010-09-30

Pulse modulation A/D-converter with feedback

#54
20100156687
2010-06-24

Control apparatus for a load supply device

#55
20100134168
2010-06-03

System, method and apparatus having improved pulse width modulation frequency resolution

#56
20100117730
2010-05-13

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

#57
20100097139
2010-04-22

Error correction system for a class-D power stage

#58
20100080336
2010-04-01

Circuit device to generate a high precision control signal

#59
20090295612
2009-12-03

Method and circuit for converting an N-bit digital value into an analog value

#60
20090284295
2009-11-19

Timer for low-power and high-resolution with low bits derived from set of phase shifted clock signals

#61
20090184854
2009-07-23

Precision microcontroller-based pulse width modulation digital-to-analog conversion circuit and method

#62
20090066551
2009-03-12

Generation method of a variable analogue signal generated by a PWM signal and system generating such a signal

#63
20090002043
2009-01-01

System, method and apparatus having improved pulse width modulation frequency resolution

#64
20080197935
2008-08-21

Arrangement for pulse-width modulating an input signal

#65
20080174629
2008-07-24

Temperature detector and recording apparatus including the same

#66
20080048899
2008-02-28

System and method for generating a pulse width modulated signal having variable duty cycle resolution

#67
20080007983
2008-01-10

Frequency-to-voltage converter with analog multiplication

#68
20070268161
2007-11-22

Decoding, encoding/decoding and converting

#69
20070156598
2007-07-05

Apparatus and method for importing content including plural pieces of usage constraint information

#70
20070090976
2007-04-26

Digital to analog converter calculating a difference between multiple indicators of a multi-bit input signal

#71
20060145904
2006-07-06

Digital-to-analog converters including charge pumps and related automatic laser power control devices and methods

#72
20060113981
2006-06-01

System and method for providing digital pulse width modulation

#73
20060071836
2006-04-06

Digital to analog converter

#74
20060022732
2006-02-02

DPWM with leading edge blanker circuit

#75
20050270006
2005-12-08

System and method for providing digital pulse width modulation

#76
20050253744
2005-11-17

Configurable output circuit and method

#77
20050231403
2005-10-20

Sampled system agility technique

#78
20050110668
2005-05-26

Method and system for increased effective resolution in an N-bit digital-to-analog converter

#79
20050093730
2005-05-05

Method and apparatus for converting PWM signal to analog output voltage

#80
20050083026
2005-04-21

System and method for providing digital pulse width modulation

#81
20050046601
2005-03-03

PCM-to-PWM converter

#82
20050040980
2005-02-24

System and method for shuffling mapping sequences

#83
18174093
2025-02-18

Systems and methods for digital signal synthesis with variable sample rate DAC

#84
17847802
2024-12-10

MUX and DEMUX circuits with improved bandwidth

#85
17470522
2023-01-24

Suppressing spurious signals in direct-digital synthesizers

#86
15955516
2019-05-28

High frequency digital-to-analog conversion by interleaving without return-to-zero