JPH02178818A - Power saving circuit and terminal equipment - Google Patents

Power saving circuit and terminal equipment

Info

Publication number
JPH02178818A
JPH02178818A JP33549588A JP33549588A JPH02178818A JP H02178818 A JPH02178818 A JP H02178818A JP 33549588 A JP33549588 A JP 33549588A JP 33549588 A JP33549588 A JP 33549588A JP H02178818 A JPH02178818 A JP H02178818A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
power
terminal equipment
consumption
power saving
circuit unit
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
JP33549588A
Other versions
JP2759997B2 (en )
Inventor
Shigeaki Sano
Hidekazu Tanaka
Original Assignee
Toppan Moore 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

Links

Abstract

PURPOSE: To minimize the consumption of a power source battery by supplying power to a required part in a handy terminal equipment only at the time of necessity.
CONSTITUTION: A handy terminal equipment 10 is provided with an acoustic coupler 12, an LCD display device 14, a membrane type keyboard 16, a key switch 18, a hand-written graphic input pad 20, and a power switch 22, and a base unit 24 has a pedestal 26, a power transmission coil 28, and an optical coupler 30. Power is supplied to each circuit unit only when the operation of this circuit unit is required. Thus, the consumption of the power source battery is minimized.
COPYRIGHT: (C)1990,JPO&Japio
JP33549588A 1988-12-29 1988-12-29 Saving circuit and a terminal device Expired - Lifetime JP2759997B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33549588A JP2759997B2 (en) 1988-12-29 1988-12-29 Saving circuit and a terminal device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP33549588A JP2759997B2 (en) 1988-12-29 1988-12-29 Saving circuit and a terminal device
CA 2006788 CA2006788C (en) 1988-12-29 1989-12-28 Portable type data input terminal
DE19893943311 DE3943311C2 (en) 1988-12-29 1989-12-29 Portable data entry device
US08093988 US5375226A (en) 1988-12-29 1993-07-20 Portable type data entry terminal having a keyboard input device and a graphic input device

Publications (2)

Publication Number Publication Date
JPH02178818A true true JPH02178818A (en) 1990-07-11
JP2759997B2 JP2759997B2 (en) 1998-05-28

Family

ID=18289213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33549588A Expired - Lifetime JP2759997B2 (en) 1988-12-29 1988-12-29 Saving circuit and a terminal device

Country Status (1)

Country Link
JP (1) JP2759997B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04309110A (en) * 1991-04-08 1992-10-30 Matsushita Electric Ind Co Ltd Information processor
JPH04333119A (en) * 1991-05-09 1992-11-20 Matsushita Electric Ind Co Ltd Information processor
US6191505B1 (en) 1997-10-21 2001-02-20 Nec Corporation On/off control device for power source unit
US6535985B1 (en) 1990-03-23 2003-03-18 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US6708279B1 (en) 1998-10-27 2004-03-16 Canon Kabushiki Kaisha Temperature sensor calibration during powersave mode by executing a control program in a control unit and lowering clock frequency after other devices are powered off
US6782483B2 (en) 1990-03-23 2004-08-24 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
JP2010277285A (en) * 2009-05-27 2010-12-09 Kyocera Corp Mobile electronic apparatus
JP2015208069A (en) * 2014-04-18 2015-11-19 株式会社アスタリスク Function extension device and charging system therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055826A (en) * 1983-09-02 1985-04-01 Fujitsu Ltd Automatic power source switch circuit
JPS61288725A (en) * 1985-06-13 1986-12-18 Oki Electric Ind Co Ltd Power source control system for electronic equipment
JPS63288309A (en) * 1987-05-21 1988-11-25 Oki Electric Ind Co Ltd Power source switching control circuit for electronic apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055826A (en) * 1983-09-02 1985-04-01 Fujitsu Ltd Automatic power source switch circuit
JPS61288725A (en) * 1985-06-13 1986-12-18 Oki Electric Ind Co Ltd Power source control system for electronic equipment
JPS63288309A (en) * 1987-05-21 1988-11-25 Oki Electric Ind Co Ltd Power source switching control circuit for electronic apparatus

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7213162B2 (en) 1990-03-23 2007-05-01 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7548235B2 (en) 1990-03-23 2009-06-16 Panasonic Corporation Data processing apparatus
US7464281B2 (en) 1990-03-23 2008-12-09 Panasonic Corporation Data processing apparatus
US6535985B1 (en) 1990-03-23 2003-03-18 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7432921B2 (en) 1990-03-23 2008-10-07 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
US6971037B2 (en) 1990-03-23 2005-11-29 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
US7073084B2 (en) 1990-03-23 2006-07-04 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7079108B2 (en) 1990-03-23 2006-07-18 Matsushita Electric Industrial Co., Ltd. Data processing apparatus
US7080272B2 (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
JPH04309110A (en) * 1991-04-08 1992-10-30 Matsushita Electric Ind Co Ltd Information processor
JPH04333119A (en) * 1991-05-09 1992-11-20 Matsushita Electric Ind Co Ltd Information processor
US6191505B1 (en) 1997-10-21 2001-02-20 Nec Corporation On/off control device for power source unit
US6708279B1 (en) 1998-10-27 2004-03-16 Canon Kabushiki Kaisha Temperature sensor calibration during powersave mode by executing a control program in a control unit and lowering clock frequency after other devices are powered off
JP2010277285A (en) * 2009-05-27 2010-12-09 Kyocera Corp Mobile electronic apparatus
JP2015208069A (en) * 2014-04-18 2015-11-19 株式会社アスタリスク Function extension device and charging system therefor

Also Published As

Publication number Publication date Type
JP2759997B2 (en) 1998-05-28 grant

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