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. 05, 1999
Filed:
May. 31, 1996
Applicant:
Inventor:
Yoshiaki Kumagai, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
375219 ; 455 78 ; 455 83 ;
Abstract
A wideband transceiver has high- and low-band-pass filters for dividing a communication band into high and low bands to form transmission and reception channels. The transceiver also has circulators and a switching unit. The switching unit determines transmission and reception paths by combining the signal propagating directions of the circulators and the out-of-band signal reflecting directions of the band-pass filters according to specified transmission and reception frequencies.