JPS5560346A - Frequency stabilization system - Google Patents

Frequency stabilization system

Info

Publication number
JPS5560346A
JPS5560346A JP13267978A JP13267978A JPS5560346A JP S5560346 A JPS5560346 A JP S5560346A JP 13267978 A JP13267978 A JP 13267978A JP 13267978 A JP13267978 A JP 13267978A JP S5560346 A JPS5560346 A JP S5560346A
Authority
JP
Japan
Prior art keywords
frequency
oscillator
oscillating
difference
sum
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
JP13267978A
Other languages
Japanese (ja)
Inventor
Masahiro Sato
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP13267978A priority Critical patent/JPS5560346A/en
Publication of JPS5560346A publication Critical patent/JPS5560346A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE:To srabilize the frequency of an oscillating modulator oscillating at a transmission frequency and that of a local oscillator by sum and difference frequencies of a standard oscillator which oscillates at frequencies half as high as the sum and difference between the transmission frequency and local oscillation frequency. CONSTITUTION:The output of standard oscillator 8 oscillating at a frequency half as high as the sum frequency of a transmission frequency and local oscillation frequency and that of standard oscillator 9 oscillating at a frequency half as high as the difference frequency are mixed together by mixer 10 and a sum wave and difference wave are extracted by BPF11 and applied to either transmitting-receiving detector 12 or 13. In a transmitter, the output of oscillating modulator 1 is applied to detector 12 and a phase difference is obtained by a comparison to control the frequency of the modulator. In a receiver, the output of oscillator 14 is applied to detector 13 to control the frequency of the local oscillator. Therefore, neither the oscillating modulator nor receiving local oscillator requires a highly-stable oscillator, so that an oscillator of simple constitution can be realized.
JP13267978A 1978-10-30 1978-10-30 Frequency stabilization system Pending JPS5560346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13267978A JPS5560346A (en) 1978-10-30 1978-10-30 Frequency stabilization system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13267978A JPS5560346A (en) 1978-10-30 1978-10-30 Frequency stabilization system

Publications (1)

Publication Number Publication Date
JPS5560346A true JPS5560346A (en) 1980-05-07

Family

ID=15086966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13267978A Pending JPS5560346A (en) 1978-10-30 1978-10-30 Frequency stabilization system

Country Status (1)

Country Link
JP (1) JPS5560346A (en)

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