JPS54106114A - Information transmission system - Google Patents

Information transmission system

Info

Publication number
JPS54106114A
JPS54106114A JP1373378A JP1373378A JPS54106114A JP S54106114 A JPS54106114 A JP S54106114A JP 1373378 A JP1373378 A JP 1373378A JP 1373378 A JP1373378 A JP 1373378A JP S54106114 A JPS54106114 A JP S54106114A
Authority
JP
Japan
Prior art keywords
units
center
power source
center system
keyboard
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
JP1373378A
Other languages
Japanese (ja)
Inventor
Kenzo Ono
Hirokazu Yoshino
Tsutomu Asabe
Tatsuo Fujita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1373378A priority Critical patent/JPS54106114A/en
Publication of JPS54106114A publication Critical patent/JPS54106114A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To ensure the accurate grasp of the coupling time to save the unnecessary time as well as to secure the effective working of the center in the system through which the video or aural information stored in the center is transmitted by the request of the terminal unit, by securing an automatic display of the coupling via the power source ON of the terminal.
CONSTITUTION: The following component units are provided: transmission devices 3∼4 which transmit the stored video or aural information; the center system including both transmission devices 2; and terminal units A∼N which contain keyboard 14 to supply the request information and transmisstion/reception device 9. Units A∼N are coupled with the center system via modulators 10a∼10n and 13a∼13n plus demodulators 11a∼11n and 12a∼12n respectively. Then the circuit is provided to device 9 of units A∼N to encode the genre of keyboard 14. Thus, the input is blocked for keyboard 14 before and after of the make and break of the power source and also the code indicating the make or break of the power source is sent to the center system in several times. At the center system, the code is decided to form a link, thus the stored and specified information being transmitted.
COPYRIGHT: (C)1979,JPO&Japio
JP1373378A 1978-02-08 1978-02-08 Information transmission system Pending JPS54106114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1373378A JPS54106114A (en) 1978-02-08 1978-02-08 Information transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1373378A JPS54106114A (en) 1978-02-08 1978-02-08 Information transmission system

Publications (1)

Publication Number Publication Date
JPS54106114A true JPS54106114A (en) 1979-08-20

Family

ID=11841439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1373378A Pending JPS54106114A (en) 1978-02-08 1978-02-08 Information transmission system

Country Status (1)

Country Link
JP (1) JPS54106114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786060A (en) * 1980-11-18 1982-05-28 Matsushita Electric Ind Co Ltd Meter voltage amplifier circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786060A (en) * 1980-11-18 1982-05-28 Matsushita Electric Ind Co Ltd Meter voltage amplifier circuit
JPH026024B2 (en) * 1980-11-18 1990-02-07 Matsushita Electric Ind Co Ltd

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