Clock regenerator for use in demodulating digital modulated...

Details Clock regenerator for use in demodulating digital modulated... Clock regenerator for use in demodulating digital modulated...

2005-10-25

2005-10-25

Ghayour, Mohammed (Department: 2631)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S330000

Reexamination Certificate

active

06959051

ABSTRACT:
A differential detector generates, for each symbol, a phase difference between phase information received from a phase detector and one-symbol-delayed phase information of the received phase information. The one-symbol-delayed phase information is transferred to a differential detector, which generates, for each symbol, a phase difference between the one-symbol-delayed phase information and two-symbol-delayed phase information. The generated phase differences are fed to another differential circuit, which in turn generates, for each symbol, a difference between both received phase differences to produce phase-difference difference information. A clock regenerator circuit extracts symbol timing from the phase-difference difference information and regenerates clock signals synchronizing with the extracted symbol timing.

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