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:
Feb. 15, 2000
Filed:
Dec. 05, 1997
Applicant:
Inventor:
Shawn M Stephenson, Raleigh, NC (US);
Assignee:
Ericsson Inc., Research Triangle Park, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 90 ; 455575 ; 379433 ;
Abstract
A lightguide is provided for illuminating a keypad of a radiotelephone, or other electronic device, via at least one light source located within the electronic device. Conductive pads and conductive traces are provided on a face of the lightguide. Each conductive pad is operably engageable via a respective key of a keypad. The conductive pads and traces are electrically connected with a circuit board within the radiotelephone housing.