JPS5523532A - Power source control system of small-size electronic computer - Google Patents

Power source control system of small-size electronic computer

Info

Publication number
JPS5523532A
JPS5523532A JP9505478A JP9505478A JPS5523532A JP S5523532 A JPS5523532 A JP S5523532A JP 9505478 A JP9505478 A JP 9505478A JP 9505478 A JP9505478 A JP 9505478A JP S5523532 A JPS5523532 A JP S5523532A
Authority
JP
Japan
Prior art keywords
key
power source
computer
signals
source 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.)
Pending
Application number
JP9505478A
Other languages
Japanese (ja)
Inventor
Saburo Kobayashi
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP9505478A priority Critical patent/JPS5523532A/en
Publication of JPS5523532A publication Critical patent/JPS5523532A/en
Pending legal-status Critical Current

Links

Landscapes

  • Power Sources (AREA)
  • Calculators And Similar Devices (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE: To make it possible that a computer executes immediately the operation processing by any key operation after power source break in case that this power source break is performed by auto-power-off.
CONSTITUTION: Key input part 1 receives a decode output signal from buffer decoder 2 through OR circuit 17 and sends key data corresponding to an operated key to RAM 6 through input buffer 3 and operation part 4 by key sampling signals. Display part 5 displays key input data and operation result data through operation part 4. ROM 7 generates address designation signal AD of RAM 6, control signal INS for the operation control of operation part 4, etc. Then, timing signal generator generates timing signals required for the operation of the computer. Further, power source control unit 8 is provided which supplies driving voltages or driving pulse signals to prescribed circuits in the computer on a basis of key operation signals of the key input part.
COPYRIGHT: (C)1980,JPO&Japio
JP9505478A 1978-08-03 1978-08-03 Power source control system of small-size electronic computer Pending JPS5523532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9505478A JPS5523532A (en) 1978-08-03 1978-08-03 Power source control system of small-size electronic computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9505478A JPS5523532A (en) 1978-08-03 1978-08-03 Power source control system of small-size electronic computer

Publications (1)

Publication Number Publication Date
JPS5523532A true JPS5523532A (en) 1980-02-20

Family

ID=14127326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9505478A Pending JPS5523532A (en) 1978-08-03 1978-08-03 Power source control system of small-size electronic computer

Country Status (1)

Country Link
JP (1) JPS5523532A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776627A (en) * 1980-10-30 1982-05-13 Seiko Epson Corp Input equipment
JPS5958839U (en) * 1982-10-07 1984-04-17 矢崎総業株式会社 power control circuit
JPH03286214A (en) * 1990-03-30 1991-12-17 Sharp Corp Turning-off device for lighting of display
JPH09171499A (en) * 1995-12-20 1997-06-30 Hitachi Ltd Power saving method for information processor and information processor having power saving function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776627A (en) * 1980-10-30 1982-05-13 Seiko Epson Corp Input equipment
JPS5958839U (en) * 1982-10-07 1984-04-17 矢崎総業株式会社 power control circuit
JPH03286214A (en) * 1990-03-30 1991-12-17 Sharp Corp Turning-off device for lighting of display
JPH09171499A (en) * 1995-12-20 1997-06-30 Hitachi Ltd Power saving method for information processor and information processor having power saving function

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