JPS546707A - Transmitting system for multi-frequency signal - Google Patents

Transmitting system for multi-frequency signal

Info

Publication number
JPS546707A
JPS546707A JP7267977A JP7267977A JPS546707A JP S546707 A JPS546707 A JP S546707A JP 7267977 A JP7267977 A JP 7267977A JP 7267977 A JP7267977 A JP 7267977A JP S546707 A JPS546707 A JP S546707A
Authority
JP
Japan
Prior art keywords
transmitting system
frequency signal
whole
common
control 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.)
Granted
Application number
JP7267977A
Other languages
Japanese (ja)
Other versions
JPS5629435B2 (en
Inventor
Kenichi Hanabe
Tsutomu Iwata
Koji Inoue
Kazuo Suzuki
Takashi Murakami
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP7267977A priority Critical patent/JPS546707A/en
Publication of JPS546707A publication Critical patent/JPS546707A/en
Publication of JPS5629435B2 publication Critical patent/JPS5629435B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To realize a low-cost transmitting system as a whole by using in common the signal transmission time control circuit against the plural units of the frequency mixer.
JP7267977A 1977-06-18 1977-06-18 Transmitting system for multi-frequency signal Granted JPS546707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7267977A JPS546707A (en) 1977-06-18 1977-06-18 Transmitting system for multi-frequency signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7267977A JPS546707A (en) 1977-06-18 1977-06-18 Transmitting system for multi-frequency signal

Publications (2)

Publication Number Publication Date
JPS546707A true JPS546707A (en) 1979-01-19
JPS5629435B2 JPS5629435B2 (en) 1981-07-08

Family

ID=13496289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7267977A Granted JPS546707A (en) 1977-06-18 1977-06-18 Transmitting system for multi-frequency signal

Country Status (1)

Country Link
JP (1) JPS546707A (en)

Also Published As

Publication number Publication date
JPS5629435B2 (en) 1981-07-08

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