05669004 is referenced by 70 patents and cites 25 patents.

Power usage in a personal computer is reduced by repetitively performing the following sequence of steps: a. generate a wake-up signal in connection with a user beginning to interact with the computer; b. in response to the wake-up signal, switch at least a portion of the computer into a more fully powered mode; and c. keep the portion of the computer in the more fully powered mode only as long as the user is delivering input to the computer, and thereafter immediately switch the portion of the computer into a less fully powered mode. A detector issues a wake-up signal when a user begins to interact with the computer; and control circuitry connected to the sensor switches between the more fully powered mode and the less fully powered mode. The sensor may be mounted in a keyboard that includes an array of keys, and a sensor mounted in a position to detect use of the keyboard even when the keyboard is in an unpowered state.

Title
Reducing power usage in a personal computer
Application Number
301664
Publication Number
5669004
Application Date
April 2, 1996
Publication Date
September 16, 1997
Inventor
Charles A Sellers
Houston
TX, US
Agent
Fish & Richardson P C
Assignee
Compaq Computer Corporation
TX, US
IPC
G06F 1/32
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