Pulse or digital communications – Receivers
Reexamination Certificate
2007-11-27
2007-11-27
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Receivers
C375S329000, C375S261000, C375S235000, C329S304000
Reexamination Certificate
active
10747931
ABSTRACT:
Digital signal processing for television signals includes digital feedback loops. Analog information signals are oversampled to provide digital signals. The digital signals are introduced to a digital carrier recovery loop and a digital symbol recovery loop. The gain of the digital signals is also regulated in a feedback loop. The digital signals are processed to recover the data in the data signals. The use of digital feedback loops allows information recovered from the digital signals to be precise. Carrier signals can be directly demodulated to produce baseband inphase and quadrature signals, or first downconverted to produce intermediate frequency signals.
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Kwentus Alan Y.
Kwon Thomas D.
Samueli Henry
Broadcom Corporation
Ghebretinsae Temesghen
Sterne Kessler Goldstein & Fox P.L.L.C.
Torres Juan A.
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