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:
Jul. 05, 2005
Filed:
Jul. 31, 2003
Applicants:
Hisashi Takasu, Chiryu, JP;
Michiru Takahashi, Niwa-gun, JP;
Inventors:
Hisashi Takasu, Chiryu, JP;
Michiru Takahashi, Niwa-gun, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D003/00 ; H04L027/14 ;
U.S. Cl.
CPC ...
Abstract
A demodulator includes a count section, a synchronization timing setting section, and a code judgment section. The count section has four counters that count a number of waves of an FSK-modulated digital signal at different timing within a bit time width. The synchronization timing setting section designates a synchronized timing signal based on the count value of the count section. Then, the code judgment section compares the count value with a threshold value to judge the signal level, thereby decoding the digital signal.