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:
Apr. 04, 2006
Filed:
Oct. 21, 2003
Applicants:
Peter J. Hopper, San Jose, CA (US);
Philipp Lindorfer, San Jose, CA (US);
Michael Mian, Livermore, CA (US);
Robert Drury, Santa Clara, CA (US);
Inventors:
Peter J. Hopper, San Jose, CA (US);
Philipp Lindorfer, San Jose, CA (US);
Michael Mian, Livermore, CA (US);
Robert Drury, Santa Clara, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 40/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical sensor provides information about the burn of the fuel mixture in the combustion chamber of an internal combustion engine as well as the timing and waveform of the spark that ignites the fuel mixture in the combustion chamber. The optical sensor can be implemented as a stand-alone device, or incorporated into a spark plug.