JPS57143973A - Hybrid communication system - Google Patents

Hybrid communication system

Info

Publication number
JPS57143973A
JPS57143973A JP2972081A JP2972081A JPS57143973A JP S57143973 A JPS57143973 A JP S57143973A JP 2972081 A JP2972081 A JP 2972081A JP 2972081 A JP2972081 A JP 2972081A JP S57143973 A JPS57143973 A JP S57143973A
Authority
JP
Japan
Prior art keywords
switch
hook
closed
circuit
telephone set
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.)
Pending
Application number
JP2972081A
Other languages
Japanese (ja)
Inventor
Michimitsu Hattori
Shuzo Morita
Haruki Fukuda
Koichi Kitamura
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 JP2972081A priority Critical patent/JPS57143973A/en
Publication of JPS57143973A publication Critical patent/JPS57143973A/en
Pending 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

Abstract

PURPOSE:To transmit data, etc., for a certain time even after a telephone call ends, by transmitting information through a switch actuated by the output of a power control circuit after the on-hook operation of a hook switch. CONSTITUTION:With a handset lifted, a hook switch 5 is closed and a telephone set 4 enters into a calling state. Simultaneously, the telephone set 4 is fed with a current from a terminal station 1 through a transmission line 2. When the switch 5 is closed, a switch 6 s also closed coupling with it and a power source control circuit 7 is also powered up to operate a data transmitter 10 or a facsimile equipment 11 through the operation of a selecting circuit 9. When a telephone cell ends and the handset is put on the hook, the feeding to the telephone set 4 is stopped, but the switch 6 is still closed, so the operation is enabled continuously under the control of the circuit 7, thereby operating, e.g., a device 10. On the completion of data transmission, the circuit 7 is driven to open the switch 6.
JP2972081A 1981-03-02 1981-03-02 Hybrid communication system Pending JPS57143973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2972081A JPS57143973A (en) 1981-03-02 1981-03-02 Hybrid communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2972081A JPS57143973A (en) 1981-03-02 1981-03-02 Hybrid communication system

Publications (1)

Publication Number Publication Date
JPS57143973A true JPS57143973A (en) 1982-09-06

Family

ID=12283936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2972081A Pending JPS57143973A (en) 1981-03-02 1981-03-02 Hybrid communication system

Country Status (1)

Country Link
JP (1) JPS57143973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02262758A (en) * 1988-12-22 1990-10-25 Sanyo Electric Co Ltd Communication equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02262758A (en) * 1988-12-22 1990-10-25 Sanyo Electric Co Ltd Communication equipment

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