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:
Aug. 03, 1999
Filed:
Jul. 15, 1997
Applicant:
Inventor:
Hiroyasu Muto, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
370342 ; 370318 ; 375206 ; 375208 ;
Abstract
In a transmitter in a CDMA system, a plurality of pilot signals which are identical with each other are sent in a base band region from a plurality of pilot signal generators to be supplied to a plurality of multipliers which are given signal ratios from a monitor/control unit and to be combined together through the multipliers. The signal ratios are varied by the monitor/control unit so that an amplitude of the combined pilot signal is kept constant even when one or more pilot signal generators are faulty.