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:
Aug. 05, 2008
Filed:
Feb. 17, 2005
Shuji Kobayakawa, Kawasaki, JP;
Shuji Kobayakawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The invention relates to a radio apparatus for estimating a direction from which a received wave arrives and forming a radio transmission channel between a transmitting end of the received wave and itself. The invention aims to maintain stable transmission quality. The radio apparatus of the invention includes: two receiving sections which alternately detect two received waves that have arrived from a same transmitting end to two elements, in every period as an integer multiple of a period of each symbol of the received waves; and an arriving angle calculating section which calculates, in every period, an arriving angle as an inverse function of a difference in two phases which are proportional to a distance between the two elements, given as a function of positions of the elements and the arriving angle of the received waves, and contain a difference in phase shift amounts of the two receiving sections.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile