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. 25, 1987
Filed:
Dec. 26, 1985
Applicant:
Inventors:
Katsuya Hori, Kanagawa, JP;
Masahiro Fujita, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; G01S / ;
U.S. Cl.
CPC ...
342357 ; 375-1 ;
Abstract
A GPS receiver comprises a phase-error derivation circuit which derives the average phase error over a predetermined period. The phase-error derivation circuit sends an average phase difference signal to a numerically controlled oscillator to control its clock rate. Deriving the average phase error over the predetermined period makes it possible to determine accurately the phase error between the Gold code sequence from the satellite and the Gold code sequence derived by the local Gold code generator.
Hori, Katsuya. (1987). Digital circuit for correcting phase shift of digital signal (U.S. Patent No. 4689626). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4689626
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile