JPS5789119A - Terminal device - Google Patents

Terminal device

Info

Publication number
JPS5789119A
JPS5789119A JP55164296A JP16429680A JPS5789119A JP S5789119 A JPS5789119 A JP S5789119A JP 55164296 A JP55164296 A JP 55164296A JP 16429680 A JP16429680 A JP 16429680A JP S5789119 A JPS5789119 A JP S5789119A
Authority
JP
Japan
Prior art keywords
circuit
keyboard
control circuit
output
power supply
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
JP55164296A
Other languages
Japanese (ja)
Inventor
Takakuni Kuki
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
Original Assignee
NEC 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 Electric Co Ltd filed Critical NEC Corp
Priority to JP55164296A priority Critical patent/JPS5789119A/en
Publication of JPS5789119A publication Critical patent/JPS5789119A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power

Abstract

PURPOSE:To reduce the power consumption, by dividing a control circuit into a part which should always work and another part which has not to work while waiting for a push of a key and automatically cutting off the power supply to the latter part when not required. CONSTITUTION:Either one of the keys on a keyboard 1 is pushed to set an FF12 via an OR circuit 11, and the output of the FF12 is applied to a switch 8 to supply the power to a control circuit 2. The circuit 2 works and receives the output of the keyboard to give the necessary working to both an MODEM3 and a memory 4. When the working is over, a control signal is sent to a keyboard operation control circuit 7 to reset the FF12 and to open the swich 8. As a result, the power supply to the circuit 2 is cut off to prepare for the next keyboard operation.
JP55164296A 1980-11-20 1980-11-20 Terminal device Pending JPS5789119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55164296A JPS5789119A (en) 1980-11-20 1980-11-20 Terminal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55164296A JPS5789119A (en) 1980-11-20 1980-11-20 Terminal device

Publications (1)

Publication Number Publication Date
JPS5789119A true JPS5789119A (en) 1982-06-03

Family

ID=15790413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55164296A Pending JPS5789119A (en) 1980-11-20 1980-11-20 Terminal device

Country Status (1)

Country Link
JP (1) JPS5789119A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5958839U (en) * 1982-10-07 1984-04-17 矢崎総業株式会社 power control circuit
EP0134966A2 (en) * 1983-08-10 1985-03-27 International Business Machines Corporation A battery powered key entry device including a processor and a power conservation system
EP0182554A2 (en) * 1984-11-10 1986-05-28 International Computers Limited Keyboard arrangements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534499A (en) * 1978-08-30 1980-03-11 Western Electric Co Semiconductor device back bias voltage control circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534499A (en) * 1978-08-30 1980-03-11 Western Electric Co Semiconductor device back bias voltage control circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5958839U (en) * 1982-10-07 1984-04-17 矢崎総業株式会社 power control circuit
EP0134966A2 (en) * 1983-08-10 1985-03-27 International Business Machines Corporation A battery powered key entry device including a processor and a power conservation system
JPS60180036U (en) * 1983-08-10 1985-11-29 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション battery powered keyboard device
JPH0222734Y2 (en) * 1983-08-10 1990-06-20
EP0182554A2 (en) * 1984-11-10 1986-05-28 International Computers Limited Keyboard arrangements

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