H03D3/00 - CPC Classification Index

ClassID:

218969 ⎘

H03D3/00 - CPC Classification

Classification description:

Demodulation of angle-, frequency- or phase- modulated oscillations

Sub-classes:

H03D3/001 » {Details of arrangements applicable to more than one type of frequency demodulator } 7
H03D3/006 » {by sampling the oscillations and further processing the samples, e.g. by computing techniques } 65
H03D3/007 » {by converting the oscillations into two quadrature related signals } 181
H03D3/02 » by detecting phase difference between two signals obtained from input signal 19
H03D3/26 » by means of sloping amplitude/frequency characteristic of tuned or reactive circuit 11
H03D3/28 » Modifications of demodulators to reduce effects of temperature variations 1
H03D3/30 » by means of transit-time tubes 1
H03D3/32 » by deflecting an electron beam in a discharge tube 0
H03D3/34 » by means of electromechanical devices 8

Recent Application in this class:

20260112999

2026-04-23

LSK DEMODULATOR

20230370313

2023-11-16

METHODS AND APPARATUS FOR PHASE CHANGE DETECTION USING A RESONATOR

20220247356

2022-08-04

Demodulator and wireless receiver including the same

20210266199

2021-08-26

Digital isolator

20210167729

2021-06-03

Electronic envelope detection circuit and corresponding demodulator

20210083908

2021-03-18

Digital isolator

20210021449

2021-01-21

Methods and apparatus for phase change detection using a resonator

20200313945

2020-10-01

Methods and apparatus for performing a high speed phase demodulation scheme using a low bandwidth phase-lock loop

20200228061

2020-07-16

Electronic envelope detection circuit and corresponding demodulator

#10

20190278245

2019-09-12

Crosstalk generation and detection for digital isolators

#11

20180323746

2018-11-08

Digital isolator

#12

20180131545

2018-05-10

Methods and apparatus for performing a high speed phase demodulation scheme using a low bandwidth phase-lock loop

#13

20170331652

2017-11-16

Receiver including a plurality of high-pass filters

#14

20170302225

2017-10-19

Digital isolator

#15

20170272119

2017-09-21

Receiver for use in an ultra-wideband communication system

#16

20170222603

2017-08-03

Frequency selective logarithmic amplifier with intrinsic frequency demodulation capability

#17

20160226475

2016-08-04

Decoding circuit and method of decoding signal

#18

20150137883

2015-05-21

Adaptive FM demodulator supporting multiple modes

#19

20150049833

2015-02-19

Non-contact power supply transmitter system, receiving device, and analog circuit

#20

20150002090

2015-01-01

Power supply device, power receiving device, charging system, and obstacle detection method

#21

20140357199

2014-12-04

Frequency multiplying transceiver

#22

20140347122

2014-11-27

Periodically resetting integration angle demodulation device and method using the same

#23

20140321515

2014-10-30

Phase interpolator

#24

20140273898

2014-09-18

Frequency selective logarithmic amplifier with intrinsic frequency demodulation capability

#25

20140269846

2014-09-18

Receiver for use in an ultra-wideband communication system

#26

20140169038

2014-06-19

Digital isolator

#27

20140133522

2014-05-15

Receiver for use in an ultra-wideband communication system

#28

20140062588

2014-03-06

System and method to demodulate a load modulated signal

#29

20130076495

2013-03-28

Systems and methods providing signal power detection using low performance circuitry

#30

20130058384

2013-03-07

Frequency multiplying transceiver

#31

20120189040

2012-07-26

MULTI-MODE RECEIVER

#32

20120083205

2012-04-05

NFC DEVICE HAVING A DIFFERENTIAL INPUT ENVELOPE DETECTOR

#33

20100303173

2010-12-02

Circuit for demodulating a phase modulated signal

#34

20090287437

2009-11-19

Complex phase locked loop

#35

20070002975

2007-01-04

Process for automatic correction of the spectral inversion in a demodulator and device to implement the process

#36

20060209987

2006-09-21

Receiver and its adjustment system and method

#37

20050164659

2005-07-28

Apparatus and method for correcting sudden phase changes in received signals in mobile stations

#38

20050094744

2005-05-05

Multi-mode receiver

#39

16233543

2020-04-07

DC coupled digital demodulator with drift eliminator

#40

16015127

2019-06-11

High accuracy phase shift apparatus

#41

13601092

2015-02-17

Direct conversion receiver for angle modulated signals