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. 08, 2000
Filed:
Mar. 31, 1998
Applicant:
Inventor:
Shinichi Kono, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455115 ; 455101 ; 455103 ; 455129 ; 455 78 ; 455117 ;
Abstract
In a radio communication apparatus, a switch circuit is connected between a transmitter and first and second antennas. A control circuit is connected to the first antenna and the switch circuit and controls the switch circuit in accordance with a standing wave ratio measured from the first antenna. That is, when the standing wave ratio of the first antenna exceeds a predetermined value, the connection between the transmitter and the first antenna is switched to the connection between the transmitter and the second antenna.