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:
Sep. 18, 1990
Filed:
Mar. 01, 1989
Applicant:
Inventor:
Yasuhito Imanishi, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455277 ; 343702 ;
Abstract
A radio frequency transceiver apparatus for changing over between a whip antenna and an internal antenna, wherein the whip antenna itself is utilized as both an antenna change-over element and an antenna change-over line, thereby permitting the antenna change-over in a simple construction and permitting the reduction of insertion loss, with little deterioration of VSWR.