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:
Sep. 08, 2009
Filed:
Aug. 11, 2006
Phillip Chapin, Vienna, AT;
John R. Costello, Rochester Hills, MI (US);
Tejas Desai, Troy, MI (US);
Brian Farrell, Troy, MI (US);
Douglas J. King, Lapeer, MI (US);
Thomas Schaffer, Shelby Township, MI (US);
Phillip Chapin, Vienna, AT;
John R. Costello, Rochester Hills, MI (US);
Tejas Desai, Troy, MI (US);
Brian Farrell, Troy, MI (US);
Douglas J. King, Lapeer, MI (US);
Thomas Schaffer, Shelby Township, MI (US);
Continental Automotive Systems US, Inc., Auburn Hills, MI (US);
Abstract
A real time clock assembly includes paired crystal oscillators that experience changes in frequency responsive to temperature. The differences in frequency changes between the paired crystal oscillators are utilized to determine a temperature utilized to compensate for those shifts in frequency. The predictability of frequency responsive to temperature variations by the paired crystal oscillators is utilized for the determination of temperature.