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:
Jan. 19, 1999
Filed:
Mar. 14, 1996
Takehiro Sugita, Kanagawa, JP;
Junichi Nakata, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A spread spectrum communication system, which can detect the synchronization of the spread code surely even when the carrier-to-noise ratio is low, and can detect the boundary of the data. Wherein two types of spread code S20, S21 are transmitted from a transmitter 21 as an initial synchronizing signal based on a predetermined transmission pattern, and two types of spread code are respectively detected at a receiver 22. The predetermined transmission pattern is detected based on the detected two spread codes. Therefore, the spread code is detected several times at the receiver, and the synchronization of the spread code can be detected surely even when the carrier-to-noise ratio is low. Further, the boundary of the data can be detected by the predetermined transmission pattern.