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Patent Searching and Data


Title:
COMMUNICATION APPARATUS AND COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP2004336206
Kind Code:
A
Abstract:

To obtain a communication apparatus and a communication system capable of suppressing the deterioration of a communication speed by selecting the optimum communication means, even if the communication speed fluctuates due to the influence of a change in situation by time.

A communication processor 110 converts transmission data from transmission data in a frequency region into transmission data in a time region by inverse Fourier transform, and converts a reception signal into data in a frequency region into reception data in a time region by Fourier transform. A control unit 140 calculates a communication speed at the time of using radio transmission/reception section 131 as a communication means, and a communication speed at the time of using an electric line transmission/reception section 132 as a communication means, respectively. A communication means selector 120 selects any communication means having a higher communication speed from among the communication speeds calculated by the control unit 140, outputs the transmission data in time region to the selected communication means, and outputs a reception signal received by the selected communication means to the communication processing means.


Inventors:
Horiuchi, Hiroshi
Application Number:
JP2003000126574
Publication Date:
November 25, 2004
Filing Date:
May 01, 2003
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
H04J11/00; H04B3/54; H04B7/26; H04L29/08; (IPC1-7): H04B3/54; H04B7/26; H04J11/00; H04L29/08
Attorney, Agent or Firm:
上柳 雅誉
藤綱 英吉
須澤 修