Pulse or digital communications – Spread spectrum
Reexamination Certificate
2011-04-26
2011-04-26
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Spread spectrum
C375S140000, C375S259000, C375S267000, C370S203000, C714S746000, C714S758000, C714S801000, C714S790000, C455S102000, C455S101000, C455S553100
Reexamination Certificate
active
07933306
ABSTRACT:
A transmitting device of the present invention comprises an encoder (20), a transmitting unit (100) including a pulse generator (30) and a parallel-to-serial converter (50), a transmitting control unit (40), and an antenna (90). The pulse generator (30) comprises a first pulse train generator (31), a second pulse train generator (32), . . . and an n-th pulse train generator (33). A k-bit information bit train is inputted from the information signal source (10), The encoder (20) encodes the k-bit information bit train into an n-bit encoded bit train at a coded rate of (k
). The pulse generator (30) generates n-piece repetitive pulse trains corresponding to the n-bit encoded bit train. The antenna (90) transmits the n-piece repetitive pulse trains as UWB-IR.
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Nathaniel J. August et al., “An Adaptive UWB Modulation Scheme for Optimization of Energy, BER, and Data Rate”, Ultra Wideband Systems, 2004, Joint with Conference on Ultrawideband Systems and Technologies, Joint UWBST & IWUWBS, 2004, International Workshop on Kyoto, Japan, May 18-21, 2004, Piscataway, NJ, USA, IEEE, May 18, 2004, pp. 182-186.
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Fan Chieh M
Garcia Santiago
Panasonic Corporation
Wenderoth , Lind & Ponack, L.L.P.
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