H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/27, 363/29
H04B 7/24 (2006.01) H04L 27/34 (2006.01) H04L 27/36 (2006.01) H04L 27/38 (2006.01)
Patent
CA 1232022
RADIO COMMUNICATION SYSTEM ABSTRACT OF THE DISCLOSURE A radio communication system using a QAM system. In the transmission system, the data of each channel to be transmitted is divided into data groups having frame slots. When the polarity of the mean value of the data summed in a present data groups is the same as the polarity of the mean value of the deviation of all data groups therebefore, all data in the present data groups is inverted, a direct current component and a lower frequency component near the direct current component are suppressed, and carrier waves are injected after encoding. In the receiving system, a decoder decodes so as to obtain the original data before the encoding of the transmission system.
468397
Daido Yoshimasa
Fukuda Eisuke
Nakamura Hiroshi
Sasaki Susumu
Takeda Yukio
Fujitsu Limited
Mcfadden Fincham
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