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:
Oct. 19, 2004
Filed:
Jan. 29, 2002
Gregory Kent Woods, Ramona, CA (US);
George Alan Wiley, San Diego, CA (US);
Qualcomm Inc., San Diego, CA (US);
Abstract
A mobile communication device, and a method of reading key presses and backlighting a mobile communication device, are disclosed. The method of reading key presses and backlighting a mobile communication device includes providing a mobile communication device including a plurality of marked keys resident on a flip module separate from a main module, and switching, by the mobile communication device, between a first positive voltage to the flip module when the plurality of marked keys are backlit, and a first negative voltage when the plurality of marked keys are not backlit, according to a switch command from the main module. The mobile communication device includes a main module, a flip module electrically connected to the main module, wherein the flip module includes thereon a plurality of marked keys, and a voltage switch which places a first positive voltage on a two wire interface to allow for a reading of a pressed of at least one of the plurality of keys by the main module, and which places a first negative voltage on the two wire interface to prevent the reading of a pressed of at least one of the plurality of keys by the main module.