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:
Apr. 16, 1996
Filed:
Apr. 12, 1995
Hiroshi Nakata, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A synchronizing signal detection apparatus of the present invention comprises a demodulator for digitally demodulating input signals, a partial matching error counter for comparing every bit of the demodulated input signal bit pattern demodulated by said demodulator with a part of the known synchronizing signal bit pattern. The apparatus further comprises a remaining bit matching counter for comparing the input signal bit pattern with remaining bits of the synchronizing signal bit pattern used in the partial matching error counter, or with all synchronizing signal bit pattern, for every bit, when an error bit number, which is compared in the partial matching error counter, is equal or less than a first threshold value. When the error bit number compared in the remaining bits matching error counter is equal or less than a second threshold value, synchronizing signal is assumed to be detected. In the apparatus of the present invention, bit pattern comparison numbers are decreased.