JPS5592053A - Switching system of frequency reference signal in carrier generation unit - Google Patents

Switching system of frequency reference signal in carrier generation unit

Info

Publication number
JPS5592053A
JPS5592053A JP16510478A JP16510478A JPS5592053A JP S5592053 A JPS5592053 A JP S5592053A JP 16510478 A JP16510478 A JP 16510478A JP 16510478 A JP16510478 A JP 16510478A JP S5592053 A JPS5592053 A JP S5592053A
Authority
JP
Japan
Prior art keywords
signals
frequency reference
circuits
generation unit
signal pair
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
JP16510478A
Other languages
Japanese (ja)
Inventor
Hiroshi Ogasawara
Akira Ikawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16510478A priority Critical patent/JPS5592053A/en
Publication of JPS5592053A publication Critical patent/JPS5592053A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To make it possible to perform surely a switching operation with a smal- size and light-weight unit by using one signal pair of rise and break and the other signal pair as a switching control signal for two-system signals and a frequency reference signal respectively. CONSTITUTION:A carrier generation unit is provided with circuits 1-1 and 1-2 where current and stand-by two-system signals A and B are supplied while being switched and are converted to square waves. Circuits 2-1 and 2-2 which obtain rise signals from square wave outputs from circuits 1-1 and 1-2, respectively and circuits 3-1 and 3-2 while obtain break signals from them are provided. One signal pair of rise and break and the other signal pair are transmitted as switching control signals E and F for two-system signals and frequency reference signals G and H respectively. As a result, the switching operation can be performed surely with a small-size and light-weight unit.
JP16510478A 1978-12-29 1978-12-29 Switching system of frequency reference signal in carrier generation unit Pending JPS5592053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16510478A JPS5592053A (en) 1978-12-29 1978-12-29 Switching system of frequency reference signal in carrier generation unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16510478A JPS5592053A (en) 1978-12-29 1978-12-29 Switching system of frequency reference signal in carrier generation unit

Publications (1)

Publication Number Publication Date
JPS5592053A true JPS5592053A (en) 1980-07-12

Family

ID=15805964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16510478A Pending JPS5592053A (en) 1978-12-29 1978-12-29 Switching system of frequency reference signal in carrier generation unit

Country Status (1)

Country Link
JP (1) JPS5592053A (en)

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