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.

Date of Patent:
Nov. 02, 1999

Filed:

Aug. 01, 1997
Applicant:
Inventor:

Kenichi Takai, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ;
U.S. Cl.
CPC ...
375200 ; 375206 ; 375208 ; 370342 ;
Abstract

In a spread spectrum communication system, as base station transmission channels are used a synchronizing channel for continuously transmitting a predetermined PN code from a base station (generated by a synchronizing pilot channel generating block), a identifying channel for continuously transmitting a predetermined multivalued PN code every base station (generated by an identifying pilot channel generating block), and a communication channel for enabling the identification of a base station transmitting data by multiplying the multivalued PN code used in the identifying channel by communication data after spectrum spreading (generated by a communication channel generating block).


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