Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2006-03-08
2009-12-08
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S343000, C375S316000, C375S147000, C375S140000, C375S150000
Reexamination Certificate
active
07630460
ABSTRACT:
An impulse radio communication device includes a wave detector for generating a detected signal, a switching section for selecting either a received signal or the detected signal in accordance with an external control signal and outputting it as a demodulation target signal, a reference waveform generating section synchronized with the demodulation target signal and generating a reference waveform signal having a different waveform in accordance with the external control signal, a demodulator for generating a demodulated signal from the demodulation target signal in accordance with the reference waveform signal, and a decoding section for decoding received data from the demodulated signal. This impulse radio communication device switches the demodulation target signal and the reference waveform signal simultaneously in accordance with a receiving and synchronizing state. This makes it difficult that synchronization is pulled in a correlation position having low electric power, and can reduce a acquisition time.
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International Search Report for Application PCT/JP2006/304444, dated May 30, 2006.
Fujita Suguru
Kunieda Yoshinori
Mimura Masahiro
Takahashi Kazuaki
Ueki Noriyuki
Lam Kenneth
Liu Shuwang
Panasonic Corp.
RatnerPrestia
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