04907183 is referenced by 97 patents and cites 5 patents.

A method and related apparatus for extending the battery life in a battery powered computer system having a high power consumption peripheral device, such as a hard disk. The energy state of the power supply battery is determined by a voltage detector. When the battery voltage drops to a level below which continued operation of the computer system will become unreliable or impossible, battery life is extended by de-energizing any high power consumption peripheral devices such as the hard disk, thereby providing an operator with additional time to store data or secure a backup power source. To prevent loss of data as it is being stored on a hard disk, one embodiment of the invention cuts off power to the hard disk only when the hard disk is operating in a standby mode, thereby improving data storage reliability.

Title
Battery powered computer system wherein a power supply is selectively shut off when a low battery power is detected
Application Number
7/172406
Publication Number
4907183
Application Date
March 24, 1988
Publication Date
March 6, 1990
Inventor
Nobuyuki Tanaka
Ome
JP
Agent
Finnegan Henderson Farabow Garrett and Dunner
Assignee
Kabushiki Kaisha Toshiba
JP
IPC
G06F 1/00
View Original Source