H03D13/001 - CPC Classification Index

ClassID:

219054 ⎘

H03D13/001 - CPC Classification

Classification description:

Circuits for comparing the phase or frequency of two mutually-independent oscillations in which a pulse counter is used followed by a conversion into an analog signal

Sub-classes:

H03D13/002 » {the counter being an up-down counter} 6

Recent Application in this class:

20240364353

2024-10-31

OSCILLATOR MONITORING CIRCUITS FOR DIFFERENT OSCILLATOR DOMAINS

20240195424

2024-06-13

Oscillator monitoring circuits for different oscillator domains

20230056358

2023-02-23

Communication device for performing differential phase shift keying based on a plurality of previous signals and operating method thereof

20200186089

2020-06-11

Frequency detector

20190178922

2019-06-13

Method and device for measuring the frequency of a signal

20180137276

2018-05-17

CLOCK FREQUENCY DETECTION METHOD AND APPARATUS

20170146578

2017-05-25

Method and device for measuring the frequency of a signal

20090267666

2009-10-29

Phase difference detector and phase difference detection method

20090129525

2009-05-21

APPARATUS AND METHOD FOR PHASE LOCKED LOOP

#10

20090108879

2009-04-30

Programmable sensitivity frequency coincidence detection circuit and method

#11

20090003503

2009-01-01

Frequency detector for VCO band selection

#12

20080100386

2008-05-01

Phase/frequency detector, phase locked loop, method for phase/frequency detection and method for generating an oscillator signal

#13

20070047688

2007-03-01

Frequency detecting circuit and method, and semiconductor apparatus including frequency detecting circuit