GB863593A - Digital phase storage circuit - Google Patents

Digital phase storage circuit

Info

Publication number
GB863593A
GB863593A GB91/59A GB9159A GB863593A GB 863593 A GB863593 A GB 863593A GB 91/59 A GB91/59 A GB 91/59A GB 9159 A GB9159 A GB 9159A GB 863593 A GB863593 A GB 863593A
Authority
GB
United Kingdom
Prior art keywords
wave
frequency
pulse
dividers
circuit
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
GB91/59A
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.)
Collins Radio Co
Original Assignee
Collins Radio Co
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 Collins Radio Co filed Critical Collins Radio Co
Publication of GB863593A publication Critical patent/GB863593A/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
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0992—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/04—Demodulating pulses which have been modulated with a continuously-variable signal of position-modulated pulses

Landscapes

  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

863,593. Frequency divider circuits. COLLINS RADIO CO. Jan. 1, 1959 [May 5, 1958], No. 91/59. Class 40(6) A circuit for producing an output wave having a predetermined phase relation with an input wave at a desired instant, comprises a source of oscillations having a frequency that is a multiple N of the input wave, a frequency divider chain for dividing the oscillation frequency by N and a gating circuit for feeding the input wave to the divider chain at the desired instant to reset the dividers of the chain to zero. Fig. 1 shows a stable oscillator 31 feeding a chain of binary frequency dividers 21-23 which divide the oscillator frequency to the frequency of an input wave applied at 10. This wave is converted from sine wave to pulse wave form in a circuit 11 and applied to a gate 12 which is opened by means of a switch 14 at a desired instant to let one or more pulses through. The selected pulse, or the last of the selected pulses, resets the frequency dividers to zero so that the counting starts in phase with the input pulse, and the output of the dividers is passed through a filter 24 to convert the output pulses to sine wave form. Where a single pulse only is to be fed through the gate, a switching arrangement may be operated by the pulse which is passed in order to close the gate before the next pulse arrives (Fig. 4, not shown). The circuit may be used in wave propagation studies and in phase pulse communication equipment.
GB91/59A 1958-05-05 1959-01-01 Digital phase storage circuit Expired GB863593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US863593XA 1958-05-05 1958-05-05

Publications (1)

Publication Number Publication Date
GB863593A true GB863593A (en) 1961-03-22

Family

ID=22198070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB91/59A Expired GB863593A (en) 1958-05-05 1959-01-01 Digital phase storage circuit

Country Status (1)

Country Link
GB (1) GB863593A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023682A (en) * 1973-06-30 1975-03-13
EP0213870A2 (en) * 1985-08-26 1987-03-11 Electronic Specialists, Inc. Frequency lock system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023682A (en) * 1973-06-30 1975-03-13
EP0213870A2 (en) * 1985-08-26 1987-03-11 Electronic Specialists, Inc. Frequency lock system
EP0213870A3 (en) * 1985-08-26 1987-09-02 Electronic Specialists, Inc. Frequency lock system

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