ClassID:

222563

H03M3/504 - 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 finite impulse response [FIR] filter, i.e. FIRDAC

Recent Application in this class:
#1
20260135569
2026-05-14

DELTA-SIGMA MODULATORS WITH DOWNSAMPLED DIGITAL INTEGRATORS

#2
20240364358
2024-10-31

SIGMA-DELTA MODULATOR AND METHOD FOR OPERATING A SIGMA-DELTA MODULATOR

#3
20220416809
2022-12-29

Sigma delta modulator and method therefor

#4
20220312045
2022-09-29

System and methods for data compression and nonuniform quantizers

#5
20210266009
2021-08-26

Optical communication apparatus and correcting method

#6
20200389674
2020-12-10

System and methods for data compression and nonuniform quantizers

#7
20200389180
2020-12-10

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

#8
20200259503
2020-08-13

Semiconductor device for reading and outputting signal from a sensor

#9
20190386676
2019-12-19

Continuous-time delta-sigma modulator

#10
20190149165
2019-05-16

Signal processing device and method

#11
20190110084
2019-04-11

System and methods for data compression and nonuniform quantizers

#12
20190068415
2019-02-28

Sigma-delta modulator and associated system improving spectrum efficiency of wired interconnection

#13
20180175879
2018-06-21

Power-saving current-mode digital-to-analog converter (DAC)

#14
20160205471
2016-07-14

Digital/analog conversion apparatus

#15
20150188740
2015-07-02

Sigma-delta modulation apparatus and sigma-delta modulation power amplifier

#16
20150171887
2015-06-18

Delta-sigma modulator

#17
20140355598
2014-12-04

Digital-to-analog converter with integrated fir filter

#18
20140240256
2014-08-28

Digital filter, touch sense device including the digital filter, and method for performing the digital filtering

#19
20140064355
2014-03-06

Delta-sigma modulator and transmitter including the same

#20
20140062747
2014-03-06

System and method for a high resolution digital input class D amplifier with feedback

#21
20140062743
2014-03-06

System and method for pulse width modulation digital-to-analog converter

#22
20130156231
2013-06-20

Digital/analogue conversion apparatus

#23
20120106686
2012-05-03

Digital I/Q imbalance compensation in a quadrature receiver

#24
20120039399
2012-02-16

Multi-input multi-output time encoding and decoding machines

#25
20110084865
2011-04-14

Digital RF converter and RF converting method thereof

#26
20110043398
2011-02-24

Cascaded DAC architecture with pulse width modulation

#27
20100265112
2010-10-21

Digital-to-analog conversion circuit

#28
20100239102
2010-09-23

Digital filtering in a Class D amplifier system to reduce noise fold over

#29
20100225824
2010-09-09

Multi-input multi-output time encoding and decoding machines

#30
20100026539
2010-02-04

Signal processing device, signal processing method, and signal level display device

#31
20090237283
2009-09-24

Method and apparatus for digital to analog conversion

#32
20090110217
2009-04-30

Digital/analogue conversion apparatus

#33
20090082006
2009-03-26

Method for notch filtering a digital signal, and corresponding electronic device

#34
20090016544
2009-01-15

Low-power digital-to-analog converter

#35
20080266156
2008-10-30

Digital-to-analog converter of the finite impulse response type

#36
20080100482
2008-05-01

Multichannel time encoding and decoding of a signal

#37
20070152857
2007-07-05

Delta-Sigma DAC

#38
20070083277
2007-04-12

Low noise digital to pulse width modulated converter with audio applications

#39
20070024481
2007-02-01

Method and system for digital to analog conversion using multi-purpose current summation

#40
20060261986
2006-11-23

Multichannel time encoding and decoding of a signal

#41
20060164275
2006-07-27

Configuration for digital-analog conversion of high-frequency digital input signal into carrier-frequency analog output signal

#42
20060164273
2006-07-27

Self-tuning output digital filter for direct conversion delta-sigma transmitter

#43
20050190865
2005-09-01

Time encoding and decoding of a signal

#44
20050040979
2005-02-24

Computer program product for performing digital-to-analog conversion

#45
16417455
2020-06-16

Digital RF-DAC

#46
15925705
2019-03-26

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