发明名称 |
Spectrum spread communication method and system using very weak power, and high frequency radio apparatus |
摘要 |
Provided is a high frequency radio apparatus for correcting a frequency of a carrier of the own apparatus in accordance with a frequency of a reception carrier when performing spread spectrum communication using very weak power. A carrier demodulating part demodulates a spread code received from a communication counterpart radio apparatus by using default carrier data, and sends the demodulated spread code to a synchronization timing detecting part. When the synchronization timing detecting part detects the spread code from the carrier demodulated data, a carrier frequency deviation detecting part performs a frequency analysis of the spread code to detect a deviation amount of the carrier frequency. A carrier data generating part generates corrected carrier data based on the detected deviation amount. A DBPSK modulating part uses the corrected carrier data to perform data transmission to the communication counterpart radio apparatus. |
申请公布号 |
US8090004(B2) |
申请公布日期 |
2012.01.03 |
申请号 |
US20060817462 |
申请日期 |
2006.03.02 |
申请人 |
KOBAYASHI KAORU;TSUKAMOTO NOBUO;NIHON DEMPA KOGYO CO., LTD. |
发明人 |
KOBAYASHI KAORU;TSUKAMOTO NOBUO |
分类号 |
H04B1/707 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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