JPS5621463A - Transmission and receiving method of control signal - Google Patents

Transmission and receiving method of control signal

Info

Publication number
JPS5621463A
JPS5621463A JP9679679A JP9679679A JPS5621463A JP S5621463 A JPS5621463 A JP S5621463A JP 9679679 A JP9679679 A JP 9679679A JP 9679679 A JP9679679 A JP 9679679A JP S5621463 A JPS5621463 A JP S5621463A
Authority
JP
Japan
Prior art keywords
control signal
sound
signal
output
transmission
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.)
Granted
Application number
JP9679679A
Other languages
Japanese (ja)
Other versions
JPS6142454B2 (en
Inventor
Junichi Nomura
Kazuyoshi Watanabe
Ryukichi Tomita
Shozo Nishimura
Kiyoyuki Tsujimura
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.)
Anritsu Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Anritsu Corp
Nippon Telegraph and Telephone Corp
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 Anritsu Corp, Nippon Telegraph and Telephone Corp filed Critical Anritsu Corp
Priority to JP9679679A priority Critical patent/JPS5621463A/en
Publication of JPS5621463A publication Critical patent/JPS5621463A/en
Publication of JPS6142454B2 publication Critical patent/JPS6142454B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To detect surely the control signal in the receiving side to prevent malfunctions, by arranging the main band of sound and the control signal in the higher side and the side lower than the main band respectively due to frequency inversion in the transmission side. CONSTITUTION:In the transmission side, sound signal fV at input terminal 5 is output through mixing part 3 after subjected to frequency inversion in 31. Control signal f0' is arranged in the side lower than the sound band by control signal oscillator 2'. In the receiveing side, when the received signal is sound signal, frequency inversion is performed in 32 to take out signal fV. Then, BPFs 13' and 7' are provided correspondingly to main band fX' of sound and control signal f0', and the output of a potential opposite to the output of rectifying circuit 8 of the control signal is generated in the output side of suppressing circuit 15 by components fX', thereby preventing malfunctions of the control signal circuit system.
JP9679679A 1979-07-31 1979-07-31 Transmission and receiving method of control signal Granted JPS5621463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9679679A JPS5621463A (en) 1979-07-31 1979-07-31 Transmission and receiving method of control signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9679679A JPS5621463A (en) 1979-07-31 1979-07-31 Transmission and receiving method of control signal

Publications (2)

Publication Number Publication Date
JPS5621463A true JPS5621463A (en) 1981-02-27
JPS6142454B2 JPS6142454B2 (en) 1986-09-20

Family

ID=14174584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9679679A Granted JPS5621463A (en) 1979-07-31 1979-07-31 Transmission and receiving method of control signal

Country Status (1)

Country Link
JP (1) JPS5621463A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS637046A (en) * 1986-06-27 1988-01-12 Fujitsu Denso Ltd Signal band optimizing device
US6528679B1 (en) 1999-09-29 2003-03-04 Tosoh Corporation Process for producing phenyl esters using palladium-based catalysts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS637046A (en) * 1986-06-27 1988-01-12 Fujitsu Denso Ltd Signal band optimizing device
US6528679B1 (en) 1999-09-29 2003-03-04 Tosoh Corporation Process for producing phenyl esters using palladium-based catalysts
US6958407B2 (en) 1999-09-29 2005-10-25 Tosoh Corporation Process for producing phenyl ester, and catalyst

Also Published As

Publication number Publication date
JPS6142454B2 (en) 1986-09-20

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