JPS5523532A - Power source control system of small-size electronic computer - Google Patents
Power source control system of small-size electronic computerInfo
- Publication number
- JPS5523532A JPS5523532A JP9505478A JP9505478A JPS5523532A JP S5523532 A JPS5523532 A JP S5523532A JP 9505478 A JP9505478 A JP 9505478A JP 9505478 A JP9505478 A JP 9505478A JP S5523532 A JPS5523532 A JP S5523532A
- Authority
- JP
- Japan
- Prior art keywords
- key
- power source
- computer
- signals
- source control
- 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
Links
Landscapes
- Power Sources (AREA)
- Calculators And Similar Devices (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
PURPOSE: To make it possible that a computer executes immediately the operation processing by any key operation after power source break in case that this power source break is performed by auto-power-off.
CONSTITUTION: Key input part 1 receives a decode output signal from buffer decoder 2 through OR circuit 17 and sends key data corresponding to an operated key to RAM 6 through input buffer 3 and operation part 4 by key sampling signals. Display part 5 displays key input data and operation result data through operation part 4. ROM 7 generates address designation signal AD of RAM 6, control signal INS for the operation control of operation part 4, etc. Then, timing signal generator generates timing signals required for the operation of the computer. Further, power source control unit 8 is provided which supplies driving voltages or driving pulse signals to prescribed circuits in the computer on a basis of key operation signals of the key input part.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9505478A JPS5523532A (en) | 1978-08-03 | 1978-08-03 | Power source control system of small-size electronic computer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9505478A JPS5523532A (en) | 1978-08-03 | 1978-08-03 | Power source control system of small-size electronic computer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5523532A true JPS5523532A (en) | 1980-02-20 |
Family
ID=14127326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9505478A Pending JPS5523532A (en) | 1978-08-03 | 1978-08-03 | Power source control system of small-size electronic computer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5523532A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776627A (en) * | 1980-10-30 | 1982-05-13 | Seiko Epson Corp | Input equipment |
JPS5958839U (en) * | 1982-10-07 | 1984-04-17 | 矢崎総業株式会社 | power control circuit |
JPH03286214A (en) * | 1990-03-30 | 1991-12-17 | Sharp Corp | Turning-off device for lighting of display |
JPH09171499A (en) * | 1995-12-20 | 1997-06-30 | Hitachi Ltd | Power saving method for information processor and information processor having power saving function |
-
1978
- 1978-08-03 JP JP9505478A patent/JPS5523532A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776627A (en) * | 1980-10-30 | 1982-05-13 | Seiko Epson Corp | Input equipment |
JPS5958839U (en) * | 1982-10-07 | 1984-04-17 | 矢崎総業株式会社 | power control circuit |
JPH03286214A (en) * | 1990-03-30 | 1991-12-17 | Sharp Corp | Turning-off device for lighting of display |
JPH09171499A (en) * | 1995-12-20 | 1997-06-30 | Hitachi Ltd | Power saving method for information processor and information processor having power saving function |
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