JPH0441384Y2 - - Google Patents

Info

Publication number
JPH0441384Y2
JPH0441384Y2 JP1987199191U JP19919187U JPH0441384Y2 JP H0441384 Y2 JPH0441384 Y2 JP H0441384Y2 JP 1987199191 U JP1987199191 U JP 1987199191U JP 19919187 U JP19919187 U JP 19919187U JP H0441384 Y2 JPH0441384 Y2 JP H0441384Y2
Authority
JP
Japan
Prior art keywords
level
circuit
voltage
processing circuit
power supply
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.)
Expired
Application number
JP1987199191U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01106926U (US20030199744A1-20031023-C00003.png
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 filed Critical
Priority to JP1987199191U priority Critical patent/JPH0441384Y2/ja
Priority to US07/291,226 priority patent/US4961008A/en
Publication of JPH01106926U publication Critical patent/JPH01106926U/ja
Application granted granted Critical
Publication of JPH0441384Y2 publication Critical patent/JPH0441384Y2/ja
Expired legal-status Critical Current

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
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3228—Monitoring task completion, e.g. by use of idle timers, stop commands or wait commands
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G06F15/0216—Constructional details or arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Sources (AREA)
  • Calculators And Similar Devices (AREA)
JP1987199191U 1987-12-29 1987-12-29 Expired JPH0441384Y2 (US20030199744A1-20031023-C00003.png)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1987199191U JPH0441384Y2 (US20030199744A1-20031023-C00003.png) 1987-12-29 1987-12-29
US07/291,226 US4961008A (en) 1987-12-29 1988-12-28 Power reduction during power down

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987199191U JPH0441384Y2 (US20030199744A1-20031023-C00003.png) 1987-12-29 1987-12-29

Publications (2)

Publication Number Publication Date
JPH01106926U JPH01106926U (US20030199744A1-20031023-C00003.png) 1989-07-19
JPH0441384Y2 true JPH0441384Y2 (US20030199744A1-20031023-C00003.png) 1992-09-29

Family

ID=16403656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987199191U Expired JPH0441384Y2 (US20030199744A1-20031023-C00003.png) 1987-12-29 1987-12-29

Country Status (2)

Country Link
US (1) US4961008A (US20030199744A1-20031023-C00003.png)
JP (1) JPH0441384Y2 (US20030199744A1-20031023-C00003.png)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5184031A (en) * 1990-02-08 1993-02-02 Kabushiki Kaisha Toshiba Semiconductor integrated circuit
US5390350A (en) * 1991-04-22 1995-02-14 Western Digital Corporation Integrated circuit chip core logic system controller with power saving features for a microcomputer system
US6230276B1 (en) 1999-02-01 2001-05-08 Douglas T Hayden Energy conserving measurement system under software control and method for battery powered products
JP3786608B2 (ja) 2002-01-28 2006-06-14 株式会社ルネサステクノロジ 半導体集積回路装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617415A (en) * 1979-07-24 1981-02-19 Casio Comput Co Ltd Electric power supply system of electronic apparatus
JPS5793730A (en) * 1980-12-03 1982-06-10 Hitachi Ltd Signal level conversion circuit
JPS5816299A (ja) * 1981-07-23 1983-01-29 セイコーエプソン株式会社 音声合成半導体集積回路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381552A (en) * 1978-12-08 1983-04-26 Motorola Inc. Stanby mode controller utilizing microprocessor
US4665536A (en) * 1986-03-10 1987-05-12 Burroughs Corporation Programmable automatic power-off system for a digital terminal
US4825143A (en) * 1987-08-12 1989-04-25 Leo Cheng Digital meter automatic off power supply circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617415A (en) * 1979-07-24 1981-02-19 Casio Comput Co Ltd Electric power supply system of electronic apparatus
JPS5793730A (en) * 1980-12-03 1982-06-10 Hitachi Ltd Signal level conversion circuit
JPS5816299A (ja) * 1981-07-23 1983-01-29 セイコーエプソン株式会社 音声合成半導体集積回路

Also Published As

Publication number Publication date
US4961008A (en) 1990-10-02
JPH01106926U (US20030199744A1-20031023-C00003.png) 1989-07-19

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