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:
Oct. 14, 1997
Filed:
Mar. 29, 1996
Applicant:
Inventors:
Hirofumi Usui, Tokyo, JP;
Masanobu Matsuoka, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04N / ;
U.S. Cl.
CPC ...
4552771 ; 4551791 ; 4551911 ; 348 11 ;
Abstract
An antenna switching device has a pair of first and second input terminals and a pair of first and second output terminals. It also has a first switch for selecting either of signals supplied to the first and second input terminals and for supplying the selected signal to the first output terminal, and a second switch for selecting either of the signals supplied to the first and second input terminals and for supplying the selected signal to the second output terminal.