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:
Apr. 29, 2003
Filed:
May. 08, 2000
Minako Ide, Yokohama, JP;
Katsuhiko Hiramatsu, Yokosuka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A multiplication circuit multiplies signals, which are subjected to variable directional transmission, by weighting factors with respect to the respective antennas to , and outputs the resultant to combining circuits to , respectively. The signals input to the combining circuit are combined and radio modulated by a radio section , and transmitted from the antenna . Whereby, in a case where variable directional transmission is performed with respect to only some terminal apparatuses, signals, which are subjected to no variable directional transmission, can be transmitted after spreading them from the respective antennas of an array antenna.