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:
Jan. 16, 2007
Filed:
Jun. 22, 2001
Dan A. Preston, Bainbridge Island, WA (US);
Joseph D. Preston, Bainbridge Island, WA (US);
Robert Leyendecker, Aloha, OR (US);
Wayne Eatherly, Puyallup, WA (US);
Rod L. Proctor, Seattle, WA (US);
Dan A. Preston, Bainbridge Island, WA (US);
Joseph D. Preston, Bainbridge Island, WA (US);
Robert Leyendecker, Aloha, OR (US);
Wayne Eatherly, Puyallup, WA (US);
Rod L. Proctor, Seattle, WA (US);
Airbiquity, Inc., Seattle, WA (US);
Abstract
Network delay is determined in order to synchronize a clock in a mobile station with a reference clock. Tone are generated that represent a sequence of bits in a synchronization flag. The tones are sampled beginning at a selected sample start time. The sampled tones are demodulated to identify the bit values in the synchronization flag. The demodulator is synchronized with the sampled tones in the synchronization flag by shifting the sample start time until the samples generate an optimum synchronization value. A reference time is then identified according to the optimum sample start time.