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:
May. 01, 2007
Filed:
Jan. 31, 2006
Applicants:
Yoshiharu Doi, Gifu, JP;
Seigo Nakao, Gifu, JP;
Takaaki Makita, Gifu, JP;
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Memory () stores relative correction values that indicate the differences of transfer characteristics between a) a radio unit made up of transmission circuit () and reception circuit (), and b) a radio unit made up of transmission circuit () and reception circuit (). Correction control unit (), by means of phase shifter () and amplifier (), uses the relative correction values to correct transmission signals. In similar fashion, the adaptive array apparatus and the radio base station perform corrections in order that identical array antenna patterns are formed at times of reception and transmission.