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:
Dec. 25, 1984
Filed:
Jul. 09, 1982
Applicant:
Inventors:
Tomokazu Kai, Tokyo, JP;
Toshihide Tsuboi, Tokyo, JP;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
375 40 ; 375 57 ; 455 52 ; 455 59 ; 455101 ;
Abstract
A single data signal is transmitted by two transmitters to two radio zones having an overlapping zone therebetween. The data signal is frequency or phase modulated and is mixed in the transmitters with RF carrier waves of equal frequency. The data signal to one of the transmitters is delayed between 5.degree. and 50.degree. with respect to the original data signal to provide a phase difference between the transmitted signals.