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:
Jun. 12, 2007
Filed:
May. 02, 2003
Steven D. Deines, Cedar Rapids, IA (US);
James C. Maxted, Cedar Rapids, IA (US);
Steven D. Deines, Cedar Rapids, IA (US);
James C. Maxted, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A method of performing data detection for a global positioning system (GPS) receiver is disclosed. The method includes receiving a first in-phase (I) reference signal during a first time interval and receiving a first quadrature (Q) reference signal during a first time interval. The method also includes receiving a second in-phase (I) reference signal during a second time interval and receiving a second quadrature (Q) reference signal during a second time interval. The method further includes computing a first sum of the first I reference signal and the second I reference signal, computing a second sum of the first Q reference signal and the second Q reference signal, computing the difference of the first I reference signal and the second I reference signal; and computing the difference of the first Q reference signal and the second Q reference signal.