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Class Information
Number: 713/321
Name: Electrical computers and digital processing systems: support > Computer power control > Power conservation > Programmable calculator with power saving feature
Description: Subject matter wherein means or steps are provided to reduce an amount of power consumed by a programmable calculator.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5408423 |
Battery operated portable terminal device and method of operation |
Apr. 18, 1995 |
| 5408573 |
Integrated motor controller |
Apr. 18, 1995 |
| 5404546 |
BIOS independent power management for portable computer |
Apr. 4, 1995 |
| 5396443 |
Information processing apparatus including arrangements for activation to and deactivation from a power-saving state |
Mar. 7, 1995 |
| 5390350 |
Integrated circuit chip core logic system controller with power saving features for a microcomputer system |
Feb. 14, 1995 |
| 5388265 |
Method and apparatus for placing an integrated circuit chip in a reduced power consumption state |
Feb. 7, 1995 |
| 5384579 |
Information display apparatus and method of scrolling displayed data |
Jan. 24, 1995 |
| 5384721 |
Information processing system with a power control unit |
Jan. 24, 1995 |
| 5383140 |
Power supply control system for a portable computer |
Jan. 17, 1995 |
| 5381161 |
Data processing apparatus |
Jan. 10, 1995 |
| 5381043 |
Power supply arrangement and connector |
Jan. 10, 1995 |
| 5375077 |
Digital signal processor having reduced bus pre-charging operations |
Dec. 20, 1994 |
| 5375245 |
Apparatus for automatically reducing the power consumption of a CRT computer monitor |
Dec. 20, 1994 |
| 5371693 |
Computer with power saving function |
Dec. 6, 1994 |
| 5369771 |
Computer with transparent power-saving manipulation of CPU clock |
Nov. 29, 1994 |
| 5367638 |
Digital data processing circuit with control of data flow by control of the supply voltage |
Nov. 22, 1994 |
| 5365221 |
Computer card having low battery indicator |
Nov. 15, 1994 |
| 5355503 |
Event driven scanning of data input equipment using multi-input wake-up techniques |
Oct. 11, 1994 |
| 5355501 |
Idle detection system |
Oct. 11, 1994 |
| 5349668 |
Battery operated computer having improved battery monitor and cell reversal protection circuit |
Sep. 20, 1994 |
| 5349688 |
Method for reducing power consumption includes comparing variance in number of times microprocessor tried to read input in predefined period to predefined variance |
Sep. 20, 1994 |
| 5339445 |
Method of autonomously reducing power consumption in a computer sytem by compiling a history of power consumption |
Aug. 16, 1994 |
| 5335168 |
Computer system with power-down mode for monitor |
Aug. 2, 1994 |
| 5333119 |
Digital signal processor with delayed-evaluation array multipliers and low-power memory addressing |
Jul. 26, 1994 |
| 5315695 |
Personal computer capable of altering display luminance through key operation |
May. 24, 1994 |
| 5311441 |
Battery powered unit with battery sensor and resume processing control means |
May. 10, 1994 |
| 5305180 |
Disk drive ejector mechanism with latch and ejector and standby switch |
Apr. 19, 1994 |
| 5303171 |
System suspend on lid close and system resume on lid open |
Apr. 12, 1994 |
| 5298795 |
Current consumption control device |
Mar. 29, 1994 |
| 5291542 |
Mobile telephone having a power-conserving subroutine |
Mar. 1, 1994 |
| 5287525 |
Software controlled power shutdown in an integrated circuit |
Feb. 15, 1994 |
| 5287298 |
Oscillation control apparatus for a portable battery-driven terminal |
Feb. 15, 1994 |
| 5283906 |
Notebook computer CMOS firmware processing method and the related hardware |
Feb. 1, 1994 |
| 5274828 |
Computer including an integrated circuit having an on-chip high voltage source |
Dec. 28, 1993 |
| 5251320 |
Power controller for permitting multiple processors to power up shared input/output devices and inhibit power down until all processors have ceased service with the I/O devices |
Oct. 5, 1993 |
| 5247692 |
Multiple file system having a plurality of file units holding the same files in which loss of data is prevented in a failure of a file unit |
Sep. 21, 1993 |
| 5241680 |
Low-power, standby mode computer |
Aug. 31, 1993 |
| 5239652 |
Arrangement for reducing computer power consumption by turning off the microprocessor when inactive |
Aug. 24, 1993 |
| 5239495 |
Power supply control system for a portable computer |
Aug. 24, 1993 |
| 5237697 |
Data processing device provided with a voltage detector |
Aug. 17, 1993 |
| 5237698 |
Microcomputer |
Aug. 17, 1993 |
| 5235532 |
Information processing apparatus for performing operations in response to the opening and the closing of a cover thereof |
Aug. 10, 1993 |
| 5230056 |
Battery powered information terminal apparatus wherein the clock frequency is switched dependent upon the battery voltage |
Jul. 20, 1993 |
| 5222239 |
Process and apparatus for reducing power usage microprocessor devices operating from stored energy sources |
Jun. 22, 1993 |
| 5220672 |
Low power consuming digital circuit device |
Jun. 15, 1993 |
| 5218704 |
Real-time power conservation for portable computers |
Jun. 8, 1993 |
| 5218705 |
Pager receiver with selective operating voltage and reduced power consumption |
Jun. 8, 1993 |
| 5214785 |
Controller with keyboard emulation capability for control of host computer operation |
May. 25, 1993 |
| 5203000 |
Power-up reset conditioned on direction of voltage change |
Apr. 13, 1993 |
| 5203003 |
Computer architecture for conserving power by using shared resources and method for suspending processor execution in pipeline |
Apr. 13, 1993 |
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