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. 23, 2007
Filed:
Jul. 03, 2002
Manabu Sawada, Yokohama, JP;
Kunihiko Sasaki, Kuwana, JP;
Hiroshi Harada, Koganei, JP;
Masayuki Fujise, Koganei, JP;
Manabu Sawada, Yokohama, JP;
Kunihiko Sasaki, Kuwana, JP;
Hiroshi Harada, Koganei, JP;
Masayuki Fujise, Koganei, JP;
DENSO Corporation, Kariya, JP;
Communications Research Laboratory, Independent Administrative Institution, Tokyo, JP;
Abstract
A communication zone is defined by a plurality of cells, which are separated from one another and has respective fixed base stations. The base stations in the first cell and the last cell are capable of bidirectional communication with a mobile station, while other base stations are capable of unidirectional communication. The base stations are connected to a zone control station, which controls communications with the mobile station within the zone.