Pulse or digital communications – Synchronizers – Synchronizing the sampling time of digital data
Reexamination Certificate
2008-01-08
2008-01-08
Vo, Don N. (Department: 2611)
Pulse or digital communications
Synchronizers
Synchronizing the sampling time of digital data
Reexamination Certificate
active
07317774
ABSTRACT:
Systems and methods are described for increasing the effective dynamic range of a digital data stream in a software-defined radio receiver. In one system the sample rate of an analog to digital (“A/D”) conversion process is adjusted dynamically to shift harmonic signal interference induced by the A/D conversion process to outside the channels of interest. In another system the sample rate of an A/D conversion process is constant and the frequency of a dynamically controlled local oscillator in a frequency translator is adjusted dynamically to shift harmonic signal interference induced by the A/D conversion process to outside the channels of interest.
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Gibson Timothy P.
Hunter Jeffrey K.
Richey Manuel F.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
Vo Don N.
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