Patents by Inventor Tetsuhi Abe

Tetsuhi Abe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Communication system, communication method, transmission device, reception device, and control program
    Publication number: 20060031583
    Abstract: An object of the present invention is to provide a communications system etc., which can reduce the influence of interference from other systems which results from a difference in symbol length, in an area where a plurality of systems using different transmission methods are mixed. The present invention relates to a communications system in which a plurality of systems share the same frequency bandwidth so as to transmit information symbols. One of the plurality of systems 1 includes an identifying unit 109 configured to identify the symbol length of an information symbol transmitted in a different system 2; and an adjusting unit 102, 107 configured to adjust the symbol length of an information symbol to be transmitted, in accordance with an identified symbol length.
    Type: Application
    Filed: November 20, 2003
    Publication date: February 9, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Hiromasa Fujii, Shigeru Tomisato, Hirohito Suda, Tetsuhi Abe, Takefumi Yamada