| 摘要 |
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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