JPS53119604A - Transmission system for control signal of key telephone set - Google Patents

Transmission system for control signal of key telephone set

Info

Publication number
JPS53119604A
JPS53119604A JP3424177A JP3424177A JPS53119604A JP S53119604 A JPS53119604 A JP S53119604A JP 3424177 A JP3424177 A JP 3424177A JP 3424177 A JP3424177 A JP 3424177A JP S53119604 A JPS53119604 A JP S53119604A
Authority
JP
Japan
Prior art keywords
control signal
telephone set
key telephone
transmission system
unit
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
JP3424177A
Other languages
Japanese (ja)
Other versions
JPS5758116B2 (en
Inventor
Yoshiichi Sano
Takao Yamamoto
Taiji Sato
Shinichi Shibata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3424177A priority Critical patent/JPS53119604A/en
Priority to US05/889,657 priority patent/US4184054A/en
Publication of JPS53119604A publication Critical patent/JPS53119604A/en
Publication of JPS5758116B2 publication Critical patent/JPS5758116B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To economize the unit on middle-distance time-division multiplex transmission, by transmitting a control signal and clock signal being superposed from the main unit to a key telephone set.
JP3424177A 1977-03-28 1977-03-28 Transmission system for control signal of key telephone set Granted JPS53119604A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3424177A JPS53119604A (en) 1977-03-28 1977-03-28 Transmission system for control signal of key telephone set
US05/889,657 US4184054A (en) 1977-03-28 1978-03-21 Key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3424177A JPS53119604A (en) 1977-03-28 1977-03-28 Transmission system for control signal of key telephone set

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP8960781A Division JPS5924597B2 (en) 1981-06-12 1981-06-12 Control signal transmission method for button telephone equipment

Publications (2)

Publication Number Publication Date
JPS53119604A true JPS53119604A (en) 1978-10-19
JPS5758116B2 JPS5758116B2 (en) 1982-12-08

Family

ID=12408652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3424177A Granted JPS53119604A (en) 1977-03-28 1977-03-28 Transmission system for control signal of key telephone set

Country Status (1)

Country Link
JP (1) JPS53119604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010504698A (en) * 2006-09-21 2010-02-12 アナログ・デバイシズ・インコーポレーテッド Serial digital data communication interface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4853413A (en) * 1971-11-04 1973-07-27
JPS5087220A (en) * 1973-12-05 1975-07-14

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4853413A (en) * 1971-11-04 1973-07-27
JPS5087220A (en) * 1973-12-05 1975-07-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010504698A (en) * 2006-09-21 2010-02-12 アナログ・デバイシズ・インコーポレーテッド Serial digital data communication interface

Also Published As

Publication number Publication date
JPS5758116B2 (en) 1982-12-08

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