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:
Mar. 07, 1989
Filed:
Jun. 17, 1988
Applicant:
Inventors:
Makoto Yoshimoto, Tokyo, JP;
Shigeki Maeda, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H01Q / ; H04J / ;
U.S. Cl.
CPC ...
342361 ; 455 63 ; 370-6 ; 370 78 ;
Abstract
A dual polarization transmission system includes a first circuit for alternately arranging a plurality of channels having a first bandwidth on a first polarized wave and a second polarized wave orthogonal to the first polarized wave on a frequency axis, and a second circuit for alternately arranging a plurality of channels having a second bandwidth smaller than the first bandwidth on the opposite polarized wave having the same center frequency as that of a corresponding one of the channels arranged by the first circuit.