GB1482014A - Phase sensitive detector - Google Patents

Phase sensitive detector

Info

Publication number
GB1482014A
GB1482014A GB4351974A GB4351974A GB1482014A GB 1482014 A GB1482014 A GB 1482014A GB 4351974 A GB4351974 A GB 4351974A GB 4351974 A GB4351974 A GB 4351974A GB 1482014 A GB1482014 A GB 1482014A
Authority
GB
United Kingdom
Prior art keywords
pulse
output
input
pulse generator
gate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4351974A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pye Ltd filed Critical Pye Ltd
Priority to GB4351974A priority Critical patent/GB1482014A/en
Publication of GB1482014A publication Critical patent/GB1482014A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H03D13/003—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which both oscillations are converted by logic means into pulses which are applied to filtering or integrating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

1482014 Phase comparators PYE Ltd 8 Oct 1974 43519/74 Heading H3A In a phase comparator for comparing two harmonically related pulse inputs 1, 5 the lower frequency input signal is applied to a pulse generator 8 which produces a pulse at its output during each period of the input to it, the pulse having a width less than that of the input and not equal to an integral number of periods of the other input signal 1. The pulse generator output and the input 1 are applied to a coincidence detector, e.g. an AND gate 4, which produces an output characteristic of the phase difference. The output is fed to an integrator R1, C1, the capacitor C1 of which is periodically reset by a pulse from a second pulse generator 16. Both pulse generators may be monostables. In place of an AND gate, the coincidence detector may comprise a circuit whose output switches between two different frequencies. The comparator may be used in an afc loop Fig. 5 (not shown).
GB4351974A 1974-10-08 1974-10-08 Phase sensitive detector Expired GB1482014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4351974A GB1482014A (en) 1974-10-08 1974-10-08 Phase sensitive detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4351974A GB1482014A (en) 1974-10-08 1974-10-08 Phase sensitive detector

Publications (1)

Publication Number Publication Date
GB1482014A true GB1482014A (en) 1977-08-03

Family

ID=10429105

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4351974A Expired GB1482014A (en) 1974-10-08 1974-10-08 Phase sensitive detector

Country Status (1)

Country Link
GB (1) GB1482014A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109900971A (en) * 2017-12-11 2019-06-18 长鑫存储技术有限公司 Pulse signal delay detection method, device and semiconductor memory
US11536599B2 (en) 2018-03-20 2022-12-27 The University Of Warwick Ultrasonic fluid flow measuring method and apparatus for inferring flow speed relative to the phase shift between signals from the transducers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109900971A (en) * 2017-12-11 2019-06-18 长鑫存储技术有限公司 Pulse signal delay detection method, device and semiconductor memory
CN109900971B (en) * 2017-12-11 2023-01-24 长鑫存储技术有限公司 Pulse signal processing method and device and semiconductor memory
US11536599B2 (en) 2018-03-20 2022-12-27 The University Of Warwick Ultrasonic fluid flow measuring method and apparatus for inferring flow speed relative to the phase shift between signals from the transducers

Similar Documents

Publication Publication Date Title
US4242639A (en) Digital phase lock circuit
US3515997A (en) Circuit serving for detecting the synchronism between two frequencies
US2566085A (en) Electronic interval timing method and system
US3137818A (en) Signal generator with external start pulse phase control
US3092736A (en) Plural signal frequency detector able to continuously distinguish whether frequency difference is positive or negative
US3187262A (en) Detector of phase differences between currents of different frequencies
US4025866A (en) Open loop digital frequency multiplier
US4128811A (en) Frequency indicating circuit
US3370252A (en) Digital automatic frequency control system
GB1447418A (en) Frequency synthesiser
US3314014A (en) Frequency comparing systems
GB1482014A (en) Phase sensitive detector
GB843478A (en) Improvements in or relating to electrical wave-generators
GB1276278A (en) Frequency divider
GB1246980A (en) Generator frequency matcher apparatus using direct sampling
SU475562A1 (en) Automatic frequency control device
SU552665A1 (en) Frequency multiplier
SU414734A1 (en) FOLLOWING ANALOG-DIGITAL CONVERTER
SU446842A1 (en) Device for generating a measurement interval for digital frequency meters
SU395860A1 (en) USSR Academy of Sciences
SU572923A1 (en) Frequency-to-code converter
SU496647A1 (en) Phase locked loop device
SU531246A1 (en) Frequency synthesizer
SU450186A2 (en) Pulse Frequency Multiplier
SU1193764A1 (en) Frequency multiplier

Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee