Pulse width modulation (PWM) clock and data receiver and...

Pulse or digital communications – Receivers

Reexamination Certificate

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Details

C375S354000, C375S340000, C375S343000, C375S346000, C375S344000

Reexamination Certificate

active

08068559

ABSTRACT:
The present disclosure generally relates to pulse width modulation (PWM) clock and data receivers and methods for recovering data and timing information from received signals. A PWM clock and data receiver in one exemplary embodiment of the present disclosure has comparators for detecting pulses of a received data signal. The PWM clock and data receiver provides fixed frequency, variable duty cycle control signals that are used to control the biasing of the comparators to establish data decision levels for clock and data recovery. At times, the output of at least one comparator is used to perform peak detection, and the receiver controls the duty cycles of the control signals based on such peak detection in an effort to optimize the clock and data recovery process.

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