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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:
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Patent Number Title Of Patent Date Issued
5504907 Power management system with adaptive control parameters for portable computer Apr. 2, 1996
5504910 Power management unit including software configurable state register and time-out counters for protecting against misbehaved software Apr. 2, 1996
5501534 Electronic apparatus which is automatically initialized when normal operation is resumed after the apparatus has been in a low power consumption mode Mar. 26, 1996
5502689 Clock generator capable of shut-down mode and clock generation method Mar. 26, 1996
5499201 Method for reducing the electricity consumption of microprocessor-based apparatuses, in particular those for public telephone stations Mar. 12, 1996
5497494 Method for saving and restoring the state of a CPU executing code in protected mode Mar. 5, 1996
5493670 Adaptive disk spin-down method for managing the power distributed to a disk drive in a laptop computer Feb. 20, 1996
5493684 Power management architecture including a power management messaging bus for conveying an encoded activity signal for optimal flexibility Feb. 20, 1996
5493685 Display control apparatus capable of changing luminance depending on conditions of power supply circuit Feb. 20, 1996
5488575 Portable work station and data collection terminal including switchable multi purpose touch screen display Jan. 30, 1996
5485623 Information processor having high speed and safety resume system Jan. 16, 1996
5485625 Method and apparatus for monitoring external events during a microprocessor's sleep mode Jan. 16, 1996
5483464 Power saving apparatus for use in peripheral equipment of a computer Jan. 9, 1996
5483656 System for managing power consumption of devices coupled to a common bus Jan. 9, 1996
5481733 Method for managing the power distributed to a disk drive in a laptop computer Jan. 2, 1996
5481730 Monitoring and control of power supply functions using a microcontroller Jan. 2, 1996
5481732 CRT monitor power control unit Jan. 2, 1996
5475848 Supervisory control method and power saving control unit for computer system Dec. 12, 1995
5475271 Power source control system for electronic device and expansion unit connected thereto Dec. 12, 1995
5475654 Intermittent operation circuit Dec. 12, 1995
5475847 Power saving control system for computer system with feature of selective initiation of power saving control Dec. 12, 1995
5471621 Information processing systems having a main CPU and a sub-CPU which controls the overall system to achieve power savings Nov. 28, 1995
5461652 Clock control circuit Oct. 24, 1995
5457801 Power saving system Oct. 10, 1995
5454112 Personal computer or the like with a light source controller for a display apparatus Sep. 26, 1995
5454114 Microcontroller power-up delay Sep. 26, 1995
5449238 Method for operating a recording device powered by at least one rechargeable accumulator Sep. 12, 1995
5440690 Network adapter for interrupting host computer system in the event the host device driver is in both transmit and receive sleep states Aug. 8, 1995
5438678 Self-powered computer accessory device for power extraction from attached data signals and method of operating thereof Aug. 1, 1995
5432944 Data processing system having a dynamically enabled input synchronizer for selectively minimizing power consumption Jul. 11, 1995
5432946 LAN server personal computer with unattended activation capability Jul. 11, 1995
5430883 Function expansion unit capable of supplying power to computer Jul. 4, 1995
5430881 Supervisory control method and power saving control unit for computer system Jul. 4, 1995
5426595 Portable autonomous device for the detection and recording of randomly occurring phenomena of short duration Jun. 20, 1995
5426755 Semiconductor device including clock selection circuitry selecting between high and low frequency clock signals for reduced power consumption Jun. 20, 1995
5423045 System for distributed power management in portable computers Jun. 6, 1995
5420808 Circuitry and method for reducing power consumption within an electronic circuit May. 30, 1995
5416723 Loop powered process control transmitter May. 16, 1995
5416726 Method and system for placing a computer in a reduced power state May. 16, 1995
5414863 Power control staggering circuit for powering different components at different delay timings May. 9, 1995
5412585 Ultrasonic control disk drive system May. 2, 1995
5410714 Integrated-circuit card equipped with a single chip data processor automatically entering low-power consumption mode Apr. 25, 1995
5410713 Power-management system for a computer Apr. 25, 1995
5410711 Portable computer with BIOS-independent power management Apr. 25, 1995
5408573 Integrated motor controller Apr. 18, 1995
5408423 Battery operated portable terminal device and method of operation 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

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