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.

Date of Patent:
Dec. 23, 2014

Filed:

Jan. 31, 2007
Applicant:

Charles A. Sellers, Houston, TX (US);

Inventor:

Charles A. Sellers, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); H01H 13/83 (2006.01); H01H 13/02 (2006.01);
U.S. Cl.
CPC ...
H01H 13/83 (2013.01); H01H 13/023 (2013.01); H01H 2219/018 (2013.01); H01H 2219/062 (2013.01);
Abstract

Systems and methods for illuminating a keycap on a keyboard are described. One system comprises a first light source positioned below the keycap on the keyboard and arranged to illuminate a portion of a bottom of the keycap. The system also comprises a second light source, adjacent the first light source, positioned below the keycap and arranged to illuminate a portion of the bottom of the keycap. One method of illuminating a keycap on a keyboard comprises activating a first light source, wherein the first light source and a second light source are positioned below the keycap on the keyboard, and activating the second light source responsive to the first light source operating outside a predetermined threshold parameter.


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