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:
Jul. 17, 2007
Filed:
Oct. 28, 2004
Applicants:
Subramanian Jayaram, Austin, TX (US);
Satchidananda Mishra, Austin, TX (US);
Masayoshi Sakai, Round Rock, TX (US);
Inventors:
Subramanian Jayaram, Austin, TX (US);
Satchidananda Mishra, Austin, TX (US);
Masayoshi Sakai, Round Rock, TX (US);
Assignee:
Dell Products LP, Round Rock, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Projection device failure may be diagnosed by sensing improper operation of projection lamp ignitor circuitry. An ignitor failure indicator may be activated based on a sensed failure in the operation of the lamp ignitor circuitry to prevent incorrect projection lamp failure notification.