Pulse or digital communications – Synchronizers – Synchronizing the sampling time of digital data
Reexamination Certificate
2007-05-22
2010-10-26
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Synchronizers
Synchronizing the sampling time of digital data
C375S256000
Reexamination Certificate
active
07822161
ABSTRACT:
An impulse radio-based ultra wideband communication system, using an ultra wideband impulse and a 1-bit high-speed digital sampler, includes a transmitting RF module, a receiving RF module, a signal recovery unit, a transmitting signal processor, a receiving signal processor, and an ultra wideband antenna. The transmitting RF module includes an integrated impulse generator capable of implementing on-off-keying modulation and pulse position modulation, and an amplifier for amplifying output of the integrated impulse generator. The receiving RF module includes a two stage envelope detector for detecting a received signal and a comparator for converting the detected signal into a rectangular pulse. The signal recovery unit restores the signal from the receiving RF module to a digital signal using the 1-bit digital sampler. The signal processor includes a receiving signal processor for synchronizing the digital signal and decoding the detected signal. The ultra wideband antenna transmits and receives an ultra wideband signal.
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Kim Kwan Ho
Lee Soon Woo
Lee Won Tae
Park Hae Soo
Park Young Jin
Ghebretinsae Temesghen
Korea Electrotechnology Research Institute
The Webb Law Firm
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