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GB1262878A - Improvements in or relating to phase discriminating circuits - Google Patents

Improvements in or relating to phase discriminating circuits

Info

Publication number
GB1262878A
GB1262878A GB3150469A GB3150469A GB1262878A GB 1262878 A GB1262878 A GB 1262878A GB 3150469 A GB3150469 A GB 3150469A GB 3150469 A GB3150469 A GB 3150469A GB 1262878 A GB1262878 A GB 1262878A
Authority
GB
United Kingdom
Prior art keywords
waves
circuit
exclusive
sources
output signal
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
GB3150469A
Inventor
Colin Graham White
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB3150469A priority Critical patent/GB1262878A/en
Priority to SE610770A priority patent/SE362765B/xx
Publication of GB1262878A publication Critical patent/GB1262878A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0039—Exclusive OR logic circuits

Landscapes

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

Abstract

1,262,878. Phase discriminator. MARCONI CO. Ltd. 10 Feb., 1970 [23 June, 1969], No. 31504/69. Heading H3A. A phase discriminator comprises an element 3 for relatively delaying two waves from sources 1, 2, which are fed to an Exclusive OR function circuit 4 for obtaining an output signal whose pulse length depends on the relative phase of the two waves. The two waves may be of substantially unity mark/space ratio or convertible to such by further circuitry (not indicated) before application to the Exclusive OR circuit. The frequency of a slave oscillator 2 may be controlled by feeding the discriminator output to an integrator 5 followed by a varactor diode 6 connected to the oscillator 2. Fig. 2 (not shown) indicates typical waveforms from sources 1, 2 and the output signal from circuit 4.
GB3150469A 1969-06-23 1969-06-23 Improvements in or relating to phase discriminating circuits Expired GB1262878A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3150469A GB1262878A (en) 1969-06-23 1969-06-23 Improvements in or relating to phase discriminating circuits
SE610770A SE362765B (en) 1969-06-23 1970-05-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3150469A GB1262878A (en) 1969-06-23 1969-06-23 Improvements in or relating to phase discriminating circuits

Publications (1)

Publication Number Publication Date
GB1262878A true GB1262878A (en) 1972-02-09

Family

ID=10324086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3150469A Expired GB1262878A (en) 1969-06-23 1969-06-23 Improvements in or relating to phase discriminating circuits

Country Status (2)

Country Link
GB (1) GB1262878A (en)
SE (1) SE362765B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529836A1 (en) * 1991-08-22 1993-03-03 TriQuint Semiconductor, Inc. Integrating phase detector
EP0651516A1 (en) * 1993-11-02 1995-05-03 Plessey Semiconductors Limited Clock synchronisation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529836A1 (en) * 1991-08-22 1993-03-03 TriQuint Semiconductor, Inc. Integrating phase detector
US5252865A (en) * 1991-08-22 1993-10-12 Triquint Semiconductor, Inc. Integrating phase detector
EP0651516A1 (en) * 1993-11-02 1995-05-03 Plessey Semiconductors Limited Clock synchronisation

Also Published As

Publication number Publication date
SE362765B (en) 1973-12-17

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