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:
Mar. 20, 2001
Filed:
Jan. 20, 2000
Syouji Ohishi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A circuit for demodulating a signal having a temporal mixture of different modulation schemes applied thereto includes a synchronization-word-detection unit which detects synchronization words included in the signal, and generates first and second position signals, based on the detected synchronization words, indicative of respective predetermined positions in the signal, a first selection unit which selects the first position signals during a first period, and selects the first position signals and the second position signals during a second period, and a carrier-reproduction unit which carries out frequency capturing during the first period by using the first position signals selected by the first selection unit, and carries out phase capturing during the second period by using the first position signals and the second position signals selected by the first selection unit, thereby reproducing a carrier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile