JPS5532111A - Controlling system for operation return in miniaturized electronic computer - Google Patents

Controlling system for operation return in miniaturized electronic computer

Info

Publication number
JPS5532111A
JPS5532111A JP10452678A JP10452678A JPS5532111A JP S5532111 A JPS5532111 A JP S5532111A JP 10452678 A JP10452678 A JP 10452678A JP 10452678 A JP10452678 A JP 10452678A JP S5532111 A JPS5532111 A JP S5532111A
Authority
JP
Japan
Prior art keywords
key
controlling system
electronic computer
outputted
depressed
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
JP10452678A
Other languages
Japanese (ja)
Other versions
JPS6115464B2 (en
Inventor
Toshifumi Hoshii
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 JP10452678A priority Critical patent/JPS5532111A/en
Publication of JPS5532111A publication Critical patent/JPS5532111A/en
Publication of JPS6115464B2 publication Critical patent/JPS6115464B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Direct Current Feeding And Distribution (AREA)
  • Power Sources (AREA)
  • Calculators And Similar Devices (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To remove the exclusive key for releasing the off state of auto power to reduce the complexity of operation such as operation of the special key by releasing the off state by means of an optional key.
CONSTITUTION: When key operation is not carried out for the period more than the stated time, power control circuit 13 stops the operation of oscillation circuit 25 by means of auto power off signal APO. When an optional key in key input part 3 is depressed for starting the computer, key data D0 to D3 are outputted, so that the contents of binary counter 18 is set to 1 and the operation of oscillation circuit 25 is started. When the key required for operation is depressed, key data D0 to D4 are outputted and binary counter 18 outputs a carry signal; as the result, clock pulse CP' is entered into key buffer 10 and key data D0 to D3 are sent to operational memory part 2.
COPYRIGHT: (C)1980,JPO&Japio
JP10452678A 1978-08-28 1978-08-28 Controlling system for operation return in miniaturized electronic computer Granted JPS5532111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10452678A JPS5532111A (en) 1978-08-28 1978-08-28 Controlling system for operation return in miniaturized electronic computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10452678A JPS5532111A (en) 1978-08-28 1978-08-28 Controlling system for operation return in miniaturized electronic computer

Publications (2)

Publication Number Publication Date
JPS5532111A true JPS5532111A (en) 1980-03-06
JPS6115464B2 JPS6115464B2 (en) 1986-04-24

Family

ID=14382926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10452678A Granted JPS5532111A (en) 1978-08-28 1978-08-28 Controlling system for operation return in miniaturized electronic computer

Country Status (1)

Country Link
JP (1) JPS5532111A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04227519A (en) * 1991-04-26 1992-08-17 Toshiba Corp Microcomputer system
JP2008040879A (en) * 2006-08-08 2008-02-21 Seiko Epson Corp Key scan circuit and information processing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04227519A (en) * 1991-04-26 1992-08-17 Toshiba Corp Microcomputer system
JP2008040879A (en) * 2006-08-08 2008-02-21 Seiko Epson Corp Key scan circuit and information processing apparatus

Also Published As

Publication number Publication date
JPS6115464B2 (en) 1986-04-24

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