JPS5541004A - Termlinal control system - Google Patents

Termlinal control system

Info

Publication number
JPS5541004A
JPS5541004A JP11355478A JP11355478A JPS5541004A JP S5541004 A JPS5541004 A JP S5541004A JP 11355478 A JP11355478 A JP 11355478A JP 11355478 A JP11355478 A JP 11355478A JP S5541004 A JPS5541004 A JP S5541004A
Authority
JP
Japan
Prior art keywords
control channel
transmission
filter
data transmission
control
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
JP11355478A
Other languages
Japanese (ja)
Other versions
JPS5722500B2 (en
Inventor
Tatsu Tsuda
Michimitsu Hattori
Shuzo Morita
Nobuhiko Onda
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 JP11355478A priority Critical patent/JPS5541004A/en
Publication of JPS5541004A publication Critical patent/JPS5541004A/en
Publication of JPS5722500B2 publication Critical patent/JPS5722500B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

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

Abstract

PURPOSE:To enable to control the terminals of opposing parties easily through the transmission of terminal control information independently and simultaneously of the communication data, by providing the control channel separately with the data transmission communication channel. CONSTITUTION:Within the audio band, the terminal control channel is provided separately with the communication channel. Further, at data transmission at first, the transmission system of control channel consists of the path of the filter 6b relay contact RL2 modulator 10 and the reception system is made up of the path of the contact RL2 filter 6a decoder 7. Accordingly, when opposing side is controlled, the control channel is controlled to deliver to opposing side through the modulator 10 by the key 11. On the other hand, the control signal received from opposing party at the data transmission, is inputted to the decoder 7 via the filter 6a, and it is decoded to activate the buzzer 8, or it is displayed on the display 9. The use of the frequencies fL or fH of the control channel for the transmission and reception is preset to select it by the relay 5b.
JP11355478A 1978-09-18 1978-09-18 Termlinal control system Granted JPS5541004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11355478A JPS5541004A (en) 1978-09-18 1978-09-18 Termlinal control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11355478A JPS5541004A (en) 1978-09-18 1978-09-18 Termlinal control system

Publications (2)

Publication Number Publication Date
JPS5541004A true JPS5541004A (en) 1980-03-22
JPS5722500B2 JPS5722500B2 (en) 1982-05-13

Family

ID=14615227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11355478A Granted JPS5541004A (en) 1978-09-18 1978-09-18 Termlinal control system

Country Status (1)

Country Link
JP (1) JPS5541004A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814779U (en) * 1981-07-23 1983-01-29 株式会社　エコ−工芸 hanger rack
JPS5831652A (en) * 1981-08-20 1983-02-24 Meidensha Electric Mfg Co Ltd Automatic switching system for confirmation of response for mixed type of telephone set
JPS5975749A (en) * 1982-10-25 1984-04-28 Nippon Signal Co Ltd:The Separating method between data signal and voice signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4520251Y1 (en) * 1969-11-06 1970-08-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4520251Y1 (en) * 1969-11-06 1970-08-14

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814779U (en) * 1981-07-23 1983-01-29 株式会社　エコ−工芸 hanger rack
JPS5831652A (en) * 1981-08-20 1983-02-24 Meidensha Electric Mfg Co Ltd Automatic switching system for confirmation of response for mixed type of telephone set
JPS5975749A (en) * 1982-10-25 1984-04-28 Nippon Signal Co Ltd:The Separating method between data signal and voice signal

Also Published As

Publication number Publication date
JPS5722500B2 (en) 1982-05-13

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