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:
Jun. 29, 1999
Filed:
Jan. 21, 1998
Applicant:
Inventor:
Kazumasa Kohama, Kanagawa, JP;
Assignee:
Sony Corporation, , JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H04J / ;
U.S. Cl.
CPC ...
327408 ; 327415 ; 327403 ; 327404 ; 333103 ; 370480 ; 455 78 ;
Abstract
Switches are provided on the input and output side of an amplification stage in a signal switching circuit provided in a signal transmission line, and another signal is provided so that a signal can be transmitted directly. Further, a switching circuit is formed from FET elements, which are controlled to be switched on/off by control signals to assure a high isolation.