JPS52123854A - Generator of variable frequency signal - Google Patents

Generator of variable frequency signal

Info

Publication number
JPS52123854A
JPS52123854A JP4105776A JP4105776A JPS52123854A JP S52123854 A JPS52123854 A JP S52123854A JP 4105776 A JP4105776 A JP 4105776A JP 4105776 A JP4105776 A JP 4105776A JP S52123854 A JPS52123854 A JP S52123854A
Authority
JP
Japan
Prior art keywords
frequency signal
generator
variable frequency
switching time
channel switching
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.)
Pending
Application number
JP4105776A
Other languages
Japanese (ja)
Inventor
Eiji Omori
Toshitaka Fujii
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4105776A priority Critical patent/JPS52123854A/en
Publication of JPS52123854A publication Critical patent/JPS52123854A/en
Pending 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To eliminate the dicrepancy of the switching time caused by the channel switching width and to obtain the required frequency signal by shortening the channel switching time in frequency synthesizer system using the phase synchronous loop.
JP4105776A 1976-04-12 1976-04-12 Generator of variable frequency signal Pending JPS52123854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4105776A JPS52123854A (en) 1976-04-12 1976-04-12 Generator of variable frequency signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4105776A JPS52123854A (en) 1976-04-12 1976-04-12 Generator of variable frequency signal

Publications (1)

Publication Number Publication Date
JPS52123854A true JPS52123854A (en) 1977-10-18

Family

ID=12597772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4105776A Pending JPS52123854A (en) 1976-04-12 1976-04-12 Generator of variable frequency signal

Country Status (1)

Country Link
JP (1) JPS52123854A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01243626A (en) * 1988-03-25 1989-09-28 Hitachi Ltd Pll synthesizer tuner
JPH06284005A (en) * 1993-03-24 1994-10-07 Nec Corp Phase synchronizing oscillation circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01243626A (en) * 1988-03-25 1989-09-28 Hitachi Ltd Pll synthesizer tuner
JPH06284005A (en) * 1993-03-24 1994-10-07 Nec Corp Phase synchronizing oscillation circuit

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