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Title:
WIRELESS TRANSMITTER AND WIRELESS RECEIVER
Document Type and Number:
Japanese Patent JP2009089064
Kind Code:
A
Abstract:

To avoid increase of PAPR and reduce an adverse effect resulting from the stop of either of two transmission signals.

A wireless transmitter has a first instruction part 101 which generates a first instruction signal to instruct transmission of a first transmission signal, a first generator 105 which generates the first transmission signal based on the first instruction signal, a second instruction part 102 which generates a second instruction signal to instruct transmission of a second transmission signal that is selectively multiplied with walsh codes, a second generator 106 which generates the second transmission signal based on the second instruction signal, and transmission parts 107 to 109 which transmit the first and the second transmission signals. In addition, the wireless transmitter also has a signal stopper 104 which stops the first transmission signal during a period that collision of the first and the second transmission signals is predicted if walsh codes are multiplied to the second transmission signal, but on the other hand, stops the second transmission signal during a period that the collision is predicted if walsh codes are not multiplied to the second transmission signal when a collision prediction part 103 predicts the collision.


Inventors:
AKITA KOJI
INOUE KAORU
SAKATA REN
Application Number:
JP2007256523A
Publication Date:
April 23, 2009
Filing Date:
September 28, 2007
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
H04B1/04; H04B1/16; H04B1/707; H04B1/7103; H04J11/00; H04J13/18
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto