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. 27, 2002
Filed:
Oct. 30, 2000
Haruyasu Senda, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Pieces of transmission data of channels are multiplexed with each other in a multiplexing unit to produce a base band signal, and the base band signal is orthogonally modulated in an orthogonal modulating unit to produce a transmission signal. The transmission signal is orthogonally demodulated in an orthogonal demodulating unit, the base band signal produced in the multiplexing unit is compared in a comparing unit (or a comparing and correcting unit) with the demodulated base band signal, and the base band signal is corrected in a vector adjusting unit (or the comparing and correcting unit) according to a compared result. Therefore, an electric power of the transmission signal can be precisely corrected without using an electric power table fitted to an electric power ratio of the pieces of transmission data, and the interference between channels can be prevented.