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:
Sep. 30, 2003
Filed:
Mar. 03, 1999
Shiro Mazawa, Yokohama, JP;
Kazuhito Ishida, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Transmission information inputted to a plurality of radio base stations is encoded and then divided into a plurality of blocks in demultiplexers. Each of the blocks are spread with an orthogonal code, and is subjected to a determination in switches as to whether or not it can be transmitted. Outputs of the switches are again combined, spread with a PN code, and transmitted. A mobile station despreads a received signal with an orthogonal code and a PN code used in the transmission information to extract respective blocks which are multiplexed in a multiplexer, and encoded to extract the transmission information. With the foregoing configuration, a handoff is made in units of blocks.