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. 16, 2002
Filed:
Feb. 28, 2000
Michael D. Yakos, Cedar Rapids, IA (US);
John W. Murphy, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A positioning system incorporating a time offset into the pseudo random noise codes. Incorporating the time offset, a transmitter from a pseudo satellite sends pseudo random noise codes to a receiver which recognizes the pseudo random noise codes with the offset. The offset is typically done as one or more hours. Knowing the offset value, the receiver then acquires the signal, and uses it to determine position, distance, etc. The use of an offset allows conventional receivers to ignore the time offset signal by selecting a time offset value which is greater than the searching time allowed in the conventional receiver. Equipment capable of recognizing the time offset signal is capable of thereby ignoring and/or distinguishing incoming signals from other sources.