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JPS5596782A - Multifrequency code signal receiving system - Google Patents

Multifrequency code signal receiving system

Info

Publication number
JPS5596782A
JPS5596782A JP421279A JP421279A JPS5596782A JP S5596782 A JPS5596782 A JP S5596782A JP 421279 A JP421279 A JP 421279A JP 421279 A JP421279 A JP 421279A JP S5596782 A JPS5596782 A JP S5596782A
Authority
JP
Japan
Prior art keywords
signal
trunk
code
connection
receiving
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
JP421279A
Other languages
Japanese (ja)
Other versions
JPS5843000B2 (en
Inventor
Yoshiaki Endo
Yoichi Shin
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP421279A priority Critical patent/JPS5843000B2/en
Publication of JPS5596782A publication Critical patent/JPS5596782A/en
Publication of JPS5843000B2 publication Critical patent/JPS5843000B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

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

Abstract

PURPOSE:To enhance economization and simplify a system by controlling ''connection'' code transmission and receiving of a subscriber selection multifrequency code signal between the incoming register and the trunk by a DC signal and by controlling it between the trunk and signal transmission terminals by an AC signal. CONSTITUTION:A receiving station is constituted by incoming register 6 which receives a multifrequency code signal, trunk 4 which transmits and receives a signal communication control signal to and from the other party station, and incoming register link 5 which connects trunk 4 and incoming register 6. When the system is started by the other party station, the preparation completion signal to be transmitted from the receiving station to the other party station is a DC signal between incoming resister 6 and trunk 4, and thus DC signal is converted to an AC signal by trunk 4 and is transmitted. When receiving this AC signal, the selection signal transmission terminal starts transmission of the ''connection'' code. In the receiving station, the ''connection'' code is received by the incoming register, and the incoming register transmits information, which indicates that the ''connection'' code is received, to the trunk with the DC signal, and the trunk stops the AC signal when receiving the DC signal and instructs ''connection'' to the terminal above.
JP421279A 1979-01-17 1979-01-17 Multi-frequency code signal reception method Expired JPS5843000B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP421279A JPS5843000B2 (en) 1979-01-17 1979-01-17 Multi-frequency code signal reception method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP421279A JPS5843000B2 (en) 1979-01-17 1979-01-17 Multi-frequency code signal reception method

Publications (2)

Publication Number Publication Date
JPS5596782A true JPS5596782A (en) 1980-07-23
JPS5843000B2 JPS5843000B2 (en) 1983-09-22

Family

ID=11578310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP421279A Expired JPS5843000B2 (en) 1979-01-17 1979-01-17 Multi-frequency code signal reception method

Country Status (1)

Country Link
JP (1) JPS5843000B2 (en)

Also Published As

Publication number Publication date
JPS5843000B2 (en) 1983-09-22

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