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Patent Searching and Data


Title:
COMMUNICATION DEVICE AND COMMUNICATION METHOD
Document Type and Number:
Japanese Patent JP2005269202
Kind Code:
A
Abstract:

To provide a communication device and a communication method by which proper transmission power control can be executed for each transmission frequency on the transmission side so that the reception side can receive a signal of flat frequency characteristics over the entire communication band in the communication device for executing frequency hopping by using a wideband transmission path.

The communication device has a hopping pattern generator (108) for generating a hopping pattern, a frequency synthesizer (110) which generates a hopping frequency in accordance with the hopping pattern generated by the hopping pattern generator (108), and a level convertor (102) which executes the level conversion of a transmission signal after spread modulation at a level corresponding to the hopping frequency in synchronization with the switching of the hopping frequency in accordance with the hopping pattern.


Inventors:
SAITO KATSUO
Application Number:
JP2004078331A
Publication Date:
September 29, 2005
Filing Date:
March 18, 2004
Export Citation:
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Assignee:
CANON KK
International Classes:
H04B1/707; H04B1/04; H04B1/713; H04B7/26; H04W52/04; H04W52/18; H04W52/34; H04W72/04; H04W92/10; (IPC1-7): H04B1/713; H04B1/04; H04B1/707; H04B7/26
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura