发明授权
- 专利标题: Spectrum spread communication system
- 专利标题(中): 频谱传播通信系统
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申请号: US13704087申请日: 2011-06-06
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公开(公告)号: US08982926B2公开(公告)日: 2015-03-17
- 发明人: Yuji Kasai , Masahiro Murakawa , Tetsuya Higuchi
- 申请人: Yuji Kasai , Masahiro Murakawa , Tetsuya Higuchi
- 申请人地址: JP Tokyo
- 专利权人: National Institute of Advanced Industrial Science and Technology
- 当前专利权人: National Institute of Advanced Industrial Science and Technology
- 当前专利权人地址: JP Tokyo
- 代理机构: McCormick, Paulding & Huber LLP
- 优先权: JP2010-134937 20100614
- 国际申请: PCT/JP2011/062909 WO 20110606
- 国际公布: WO2011/158681 WO 20111222
- 主分类号: H04B1/00
- IPC分类号: H04B1/00 ; H04B1/7075 ; H04B1/707 ; H04B3/54 ; H04J13/16 ; H04B1/7073
摘要:
Disclosed is a spectrum spread communication system which is hardly influenced by noises, and in which a frame structure can be identified at a receiving side without use of a frame synchronization signal. A spread code generator switches spread codes (“Scai” and “Scbi”) in each frame, and outputs it to a spread modulation unit. The spread modulation unit performs spread modulation of transmission data, and transmits it to a direct current power line. A reference code generator generates reference codes (“Scai” and “Scbi”) in the same code phase. Spread demodulation units performs spread demodulation of the received signal with use of the reference codes (“Scai” and “Scbi”), and output it to a selection unit. A frame synchronization detection unit identifies a frame structure on the basis of switching of a synchronization state of a code phase in a code phase synchronization detection unit. The selection unit outputs reception data by selecting spread demodulated data from the spread demodulation unit which is in a phase-synchronized state.
公开/授权文献
- US20130089120A1 SPECTRUM SPREAD COMMUNICATION SYSTEM 公开/授权日:2013-04-11