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WO2002067404A8 - Wireless communication device and method of switching power supply - Google Patents

Wireless communication device and method of switching power supply

Info

Publication number
WO2002067404A8
WO2002067404A8 PCT/JP2001/001199 JP0101199W WO02067404A8 WO 2002067404 A8 WO2002067404 A8 WO 2002067404A8 JP 0101199 W JP0101199 W JP 0101199W WO 02067404 A8 WO02067404 A8 WO 02067404A8
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
communication device
wireless communication
switching power
signal
Prior art date
Application number
PCT/JP2001/001199
Other languages
French (fr)
Japanese (ja)
Other versions
WO2002067404A1 (en
Inventor
Masazumi Yamazaki
Original Assignee
Matsushita Electric Ind Co Ltd
Masazumi Yamazaki
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
Priority to JP24261899A priority Critical patent/JP2001069236A/en
Application filed by Matsushita Electric Ind Co Ltd, Masazumi Yamazaki filed Critical Matsushita Electric Ind Co Ltd
Priority to PCT/JP2001/001199 priority patent/WO2002067404A1/en
Priority to US10/296,472 priority patent/US20030139207A1/en
Publication of WO2002067404A1 publication Critical patent/WO2002067404A1/en
Publication of WO2002067404A8 publication Critical patent/WO2002067404A8/en

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
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1632—External expansion units, e.g. docking stations
    • 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
    • G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • 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
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/0277—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof according to available power supply, e.g. switching off when a low battery condition is detected
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Human Computer Interaction (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Communication Control (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)

Abstract

A power detector (222) produces a signal indicating that a computer device (103) is driven on an external power supply (107). If such a signal is not sent from the power detector (222) to a power supply control (203) through a signal transmission interface (212), then the power supply control (203) switches to operate a wireless communication device (101) on a battery (204) built in the communication device.
PCT/JP2001/001199 1999-08-30 2001-02-20 Wireless communication device and method of switching power supply WO2002067404A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP24261899A JP2001069236A (en) 1999-08-30 1999-08-30 Wireless communication device and power supply switching method
PCT/JP2001/001199 WO2002067404A1 (en) 1999-08-30 2001-02-20 Wireless communication device and method of switching power supply
US10/296,472 US20030139207A1 (en) 1999-08-30 2001-02-20 Wireless communication device and method of switching power supply

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24261899A JP2001069236A (en) 1999-08-30 1999-08-30 Wireless communication device and power supply switching method
PCT/JP2001/001199 WO2002067404A1 (en) 1999-08-30 2001-02-20 Wireless communication device and method of switching power supply

Publications (2)

Publication Number Publication Date
WO2002067404A1 WO2002067404A1 (en) 2002-08-29
WO2002067404A8 true WO2002067404A8 (en) 2003-03-06

Family

ID=26345038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/001199 WO2002067404A1 (en) 1999-08-30 2001-02-20 Wireless communication device and method of switching power supply

Country Status (2)

Country Link
JP (1) JP2001069236A (en)
WO (1) WO2002067404A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001069236A (en) * 1999-08-30 2001-03-16 Matsushita Electric Ind Co Ltd Wireless communication device and power supply switching method
JP2002279374A (en) * 2001-03-15 2002-09-27 Mitsubishi Electric Corp Pc card for radio communication
TWI364669B (en) * 2005-12-02 2012-05-21 Elitegroup Computer Sys Co Ltd Computer apparatus, wireless network transmission system and transmission method thereof
JP5622363B2 (en) * 2009-03-16 2014-11-12 株式会社東芝 Electronic equipment system
JP5959862B2 (en) 2012-02-01 2016-08-02 キヤノン株式会社 Power supply apparatus and program
WO2015041206A1 (en) * 2013-09-17 2015-03-26 株式会社ジーデバイス Automatic appliance-activating device, handheld information appliance, handheld-information-appliance system, and program

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043721A (en) * 1989-12-18 1991-08-27 Hewlett-Packard Company Paging accessory for portable information/computing devices
JP2548415B2 (en) * 1990-01-08 1996-10-30 シャープ株式会社 Power supply
JPH05110727A (en) * 1991-10-18 1993-04-30 Ricoh Co Ltd Facsimile equipment
BR9405440A (en) * 1993-06-30 1999-09-08 Motorola Inc Electronic device releasably connectable to variable-level power source and rechargeable rechargeable power source process.
GB2286732B (en) * 1993-09-15 1998-05-06 Ericsson Ge Mobile Communicat Power systems for plug-in modules
JP2708374B2 (en) * 1994-07-26 1998-02-04 インターナショナル・ビジネス・マシーンズ・コーポレイション Computer battery connection device and battery switching method
US5684384A (en) * 1995-10-31 1997-11-04 Motorola, Inc. Apparatus and method for discharging and charging a multiple battery arrangement
US5903764A (en) * 1997-05-02 1999-05-11 Micro International, Ltd. Smart battery selector offering power conversion internally within a portable device
JPH11275245A (en) * 1998-03-23 1999-10-08 Kyocera Corp Mobile wireless terminal with built-in battery
JP2000284864A (en) * 1999-03-30 2000-10-13 Matsushita Electric Ind Co Ltd Portable information processing device
JP2001069236A (en) * 1999-08-30 2001-03-16 Matsushita Electric Ind Co Ltd Wireless communication device and power supply switching method

Also Published As

Publication number Publication date
WO2002067404A1 (en) 2002-08-29
JP2001069236A (en) 2001-03-16

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