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:
Mar. 09, 1999
Filed:
Aug. 29, 1996
James Giel, Palatine, IL (US);
Gary A Welsch, Palatine, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus control blanking of a display (106) in a communication device (100) such as a battery powered radiotelephone. The communication device (100) includes a clock operated blanking timer 317. When the blanking timer 317 elapses, the communication device (100) blanks the display (106) a predetermined time after a key press of a keypad (108). A switch (310) detects when the communication device (100) is in use. In response to this detection, the communication device (100) maintains supply of operating power to the display (106), overriding the blanking timer 317. When a user is holding the communication device (100) adjacent to the user's head, an earpiece sensor (312) provides an indication of this condition. In response to the indication, the display (106) is immediately blanked to conserve operating power in the battery (124).