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. 14, 1998
Filed:
Sep. 11, 1995
Keiichiro Hijino, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A signal detection circuit receives a data stream containing a signal to be detected and detects the contained to-be-detected signal. The signal detection circuit includes a memory circuit prestoring data for detecting the to-be-detected signal, a first data feeder for feeding data to the memory circuit per given time slot as an upper address, and a second data feeder for feeding data to the memory circuit as a lower address using data outputted from the memory circuit. The memory circuit outputs data stored in a storage area defined by the upper address and the lower address fed from the first and second data feeders, respectively. By arranging the memory circuit to output a given value as the foregoing output data when the to-be-detected signal is detected, detection of the to-be-detected signal is achieved.