Pulse or digital communications – Transmitters
Reexamination Certificate
2005-08-30
2005-08-30
Nguyen, Simon (Department: 2685)
Pulse or digital communications
Transmitters
C455S091000, C455S102000, C455S042000, C375S256000, C375S261000, C375S298000
Reexamination Certificate
active
06937667
ABSTRACT:
Apparatuses, systems and methods for transmitting and receiving modulated impulse radio signals. An impulse radio receiver includes a time base, a precision timing generator, a template generator, a delay, first and second correlators, a data detector and a time base adjustor. The time base produces a periodic timing signal that is used by the precision timing generator to produce a timing trigger signal. The template generator uses the timing trigger signal to produce a template signal. A delay receives the template signal and outputs a delayed template signal. When an impulse radio signal is received, the first correlator correlates the received impulse radio signal with the template signal to produce a first correlator output signal, and the second correlator correlates the received impulse radio signal with the delayed template signal to produce a second correlator output signal. The data detector produces a data signal based on at least the first correlator output signal. The time base adjustor produces a time base adjustment signal based on at least the second correlator output signal. The time base adjustment signal is used to synchronize the time base with the received impulse radio signal.
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Brethour Vernon R.
Cowie Ivan A.
Dickson David M.
Fullerton Larry W.
Jett Preston
Babayi Robert
Nguyen Simon
Time Domain Corporation
Venable LLP
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