JPS6466719A - Power saving system for portable terminal equipment - Google Patents

Power saving system for portable terminal equipment

Info

Publication number
JPS6466719A
JPS6466719A JP62224282A JP22428287A JPS6466719A JP S6466719 A JPS6466719 A JP S6466719A JP 62224282 A JP62224282 A JP 62224282A JP 22428287 A JP22428287 A JP 22428287A JP S6466719 A JPS6466719 A JP S6466719A
Authority
JP
Japan
Prior art keywords
cpu
oscillator
portable terminal
terminal equipment
power saving
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
JP62224282A
Other languages
Japanese (ja)
Inventor
Norimitsu Mukai
Hideaki Yano
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 JP62224282A priority Critical patent/JPS6466719A/en
Publication of JPS6466719A publication Critical patent/JPS6466719A/en
Pending legal-status Critical Current

Links

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  • Power Sources (AREA)

Abstract

PURPOSE:To avoid the useless consumption of electric power by stopping the oscillation of the clock signal of an oscillator and then restarting this oscillation at the input of data in case the data processing operation of a processing means is interrupted for a prescribed time. CONSTITUTION:A portable terminal equipment 200 contains a main CPU 211 and a sub-CPU 231. An oscillator 221, a ROM 213, a RAM 215, a shared memory 261 and an output part 251 are connected to the CPU 211. While an oscillator 271, a ROM 233, an input part 241, etc., are connected to the CPU 231. The CPU 211 processes data in response to the clock signal received from the oscillator 221. In case this data processing operation is interrupted for a prescribed time, the CPU 231 supplies a stop signal to the oscillator 221. Thus the CPU 211 stops its working so that the useless consumption of electric power can be avoided.
JP62224282A 1987-09-08 1987-09-08 Power saving system for portable terminal equipment Pending JPS6466719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224282A JPS6466719A (en) 1987-09-08 1987-09-08 Power saving system for portable terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224282A JPS6466719A (en) 1987-09-08 1987-09-08 Power saving system for portable terminal equipment

Publications (1)

Publication Number Publication Date
JPS6466719A true JPS6466719A (en) 1989-03-13

Family

ID=16811327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224282A Pending JPS6466719A (en) 1987-09-08 1987-09-08 Power saving system for portable terminal equipment

Country Status (1)

Country Link
JP (1) JPS6466719A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548765A (en) * 1990-08-28 1996-08-20 Seiko Epson Corporation Power saving display subsystem for portable computers
US5637932A (en) * 1990-11-27 1997-06-10 Hitachi, Ltd. Power consumption control system
US6535985B1 (en) 1990-03-23 2003-03-18 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6782483B2 (en) 1990-03-23 2004-08-24 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
JP2015135700A (en) * 2010-05-21 2015-07-27 ルネサスエレクトロニクス株式会社 Microcontroller

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6990595B2 (en) 1990-03-23 2006-01-24 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7548235B2 (en) 1990-03-23 2009-06-16 Panasonic Corporation Data processing apparatus
US6535985B1 (en) 1990-03-23 2003-03-18 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6782483B2 (en) 1990-03-23 2004-08-24 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6792552B2 (en) 1990-03-23 2004-09-14 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6795929B2 (en) 1990-03-23 2004-09-21 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6804791B2 (en) 1990-03-23 2004-10-12 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6839855B2 (en) 1990-03-23 2005-01-04 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6882389B2 (en) 1990-03-23 2005-04-19 Matsushita Electric Industrial Co., Ltd. Transflective LCD device with different transmission parts each having a particular transmittance
US6909483B2 (en) 1990-03-23 2005-06-21 Matsushita Electric Industrial Co., Ltd. Transflective LCD device with different transmission parts each having a particular transmittance
US6941481B2 (en) 1990-03-23 2005-09-06 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6952248B2 (en) 1990-03-23 2005-10-04 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6952787B2 (en) 1990-03-23 2005-10-04 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7821489B2 (en) 1990-03-23 2010-10-26 Panasonic Corporation Data processing apparatus
US7073084B2 (en) 1990-03-23 2006-07-04 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7006181B2 (en) 1990-03-23 2006-02-28 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7024572B2 (en) 1990-03-23 2006-04-04 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7062667B2 (en) 1990-03-23 2006-06-13 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6971037B2 (en) 1990-03-23 2005-11-29 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7080272B2 (en) 1990-03-23 2006-07-18 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7079108B2 (en) 1990-03-23 2006-07-18 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7120809B2 (en) 1990-03-23 2006-10-10 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7213162B2 (en) 1990-03-23 2007-05-01 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7432921B2 (en) 1990-03-23 2008-10-07 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7464281B2 (en) 1990-03-23 2008-12-09 Panasonic Corporation Data processing apparatus
US5548765A (en) * 1990-08-28 1996-08-20 Seiko Epson Corporation Power saving display subsystem for portable computers
US5637932A (en) * 1990-11-27 1997-06-10 Hitachi, Ltd. Power consumption control system
JP2015135700A (en) * 2010-05-21 2015-07-27 ルネサスエレクトロニクス株式会社 Microcontroller

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