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:
Aug. 05, 2003
Filed:
Jul. 20, 2001
Dominic P. Carrozza, Redondo Beach, CA (US);
David A. Wright, Hermosa Beach, CA (US);
Reginald Jue, Manhattan Beach, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
The present invention is a demodulator and a method of demodulating burst communications. A demodulator ( ) includes a phase angle source ( ), coupled to a current received burst communication, which provides a phase angle of the current received burst communication; a comparator ( ), coupled to the phase angle source and a source of an estimated phase angle, which provides an output signal representing an angular difference between a phase of the current received burst communication and the estimated phase angle; and a phase lock loop ( ), coupled to the output signal, which provides the estimated phase angle. The phase lock loop includes a Doppler accumulator ( ) which provides a Doppler output which provides compensation in the estimated phase angle for the Doppler effect produced by relative motion between the demodulator and a source of the burst communications.