Distributing clock associated with a wired data connection over wireless interfaces using frequency correction at the transmitter side

摘要

A clock extractor extracts clock frequency f2, from a wired data connection feeding the transmitter with data clocked at the clock frequency f2. A clock error estimator estimates clock frequency error between the clock frequency f2 and a clock frequency f1 derived from a local clock of the transmitter. Clock adder adds the clock frequency error to the clock frequency f1, resulting in a synthesized clock frequency f2. A modulator uses the synthesized clock frequency f2, to modulate a data stream into a modulated signal.