The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2001
Filed:
Feb. 05, 1999
William Y. Son, San Diego, CA (US);
Jong T. Chung, San Diego, CA (US);
Neopoint, Inc., La Jolla, CA (US);
Abstract
A wireless communication handset includes at least one processor and is configured to shutdown at least one of a display, display backlight and keypad backlight of the handset. A first timer is set when the display is turned on, and the first timer is started to time a display time-out period. If a keypad entry is made by a user during the timeout period, the first timer is reset. On the other hand, if a keypad entry is not made by the user before the time-out period expires, the display is shut off to conserve power. Likewise, a time-out period can be implemented to control automatic shut-off of other power-consuming features such as a display backlight and a keypad backlight. Features can be included to automatically re-enable shut-down features upon the occurrence of events such as the receipt of an incoming call, a keypad entry, or the opening of a flip panel on the handset.