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. 10, 2002
Filed:
May. 14, 1999
Jack K. Holmes, Los Angeles, CA (US);
Gee L. Lui, Westminster, CA (US);
Chit-Sang Tsang, San Gabriel, CA (US);
The Aerospace Corporation, El Segundo, CA (US);
Abstract
Unambiguous carrier phase estimation for frequency hop signals of a frequency hopping Gaussian minimum shift keying (GMSK) communication system using coherent demodulation is enabled by channel zeroing bits and channel guard bits positioned between each pair a preceding data portion and a succeeding synch word, functioning as cumulative data phase zero forcing bits that force the accumulative data phase to zero at the end of the synch word for determining the carrier phase for subsequent data demodulation so that each synch word may be arbitrarily placed within a hop of the hopping signal having an unknown carrier phase for improved interference immunity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile