H03D3/02 - CPC Classification Index

ClassID:

218979 ⎘

H03D3/02 - CPC Classification

Classification description:

Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal

Sub-classes:

H03D3/04 » by counting or integrating cycles of oscillations 9
H03D3/06 » by combining signals additively or in product demodulators 4
H03D3/18 » by means of synchronous gating arrangements 10
H03D3/22 » by means of active elements with more than two electrodes to which two signals are applied derived from the signal to be demodulated and having a phase difference related to the frequency deviation, e.g. phase detector 3
H03D3/24 » Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits 12

Recent Application in this class:

20220302909

2022-09-22

Phase demodulator with negative feedback loop

20220120783

2022-04-21

Method and control unit for demodulation

20200099561

2020-03-26

Method for measuring distance in wireless communication system and device therefor

20200076370

2020-03-05

Method and device for FSK/GFSK demodulation

20190265036

2019-08-29

Quadrature ADC feedback compensation for capacitive-based MEMS gyroscope

20180316260

2018-11-01

Phase compensation method for power factor correction circuit

20170324596

2017-11-09

Phase measuring device and apparatuses using the phase measuring device

20150303874

2015-10-22

DEMODULATOR AND MODULATOR

20150139055

2015-05-21

Transmission apparatus, reception apparatus, communication system, transmission method, and reception method

#10

20150010044

2015-01-08

Transceiver including a high latency communication channel and a low latency communication channel

#11

20140126613

2014-05-08

Transceiver including a high latency communication channel and a low latency communication channel

#12

20120040634

2012-02-16

Frequency estimation immune to FM clicks

#13

20110019630

2011-01-27

Cross domain modulation scheme for a wireless communication link

#14

20110017305

2011-01-27

Tubular member with thermal sleeve liner

#15

20080267331

2008-10-30

Method and apparatus adapted to demodulate a data signal

#16

20050137815

2005-06-23

Digital frequency measurement system and method with automatic frequency control

#17

20050089120

2005-04-28

FSK demodulator system and method

#18

20050078589

2005-04-14

Detector for detecting information carried by a signal having a sawtooth-like shape

#19

20050069061

2005-03-31

Cross-correlation signal detector

#20

14963541

2017-08-01

Rotary transformer