Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1994-10-19
1995-10-31
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
439 55, 439 56, 395442, 395283, 361737, 361740, H02H 500
Patent
active
054632617
ABSTRACT:
A power conservation device for a peripheral interface module configured for use in an electronic device includes a sensing means that senses whether the module is in use, and a switching means that connects power from the electronic device to the module when the module is in use, and disconnects power from the electronic device to the module when the module is not in use. The peripheral interface module is designed for use with a peripheral device that is coupled to the module via a peripheral device plug. The peripheral device plug engages a socket provided in the module. The sensing means senses whether the plug engages the socket as an indication of whether the module is actually in use. In response, the switching means disconnects power from the electronic device to the module when the plug does not engage the socket, and connects power from the electronic device to the module when the plug does engage the socket. The power conservation device generally limits power consumption to periods in which the module is in use, thereby improving power efficiency and conserving battery resources in the electronic device.
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McCullough Timothy L.
Miller Stanley H.
Skarda Louis J.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Paladini Albert
Shoop Jr. William M.
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