Receiver recovering signal clock from received data signal, and clock recovery method implemented in receiver

Abstract

The present disclosure relates to a receiver and to a method implemented in the receiver for recovering a signal clock from a received data signal. Successive edge transitions between successive datasamples of the received data signal are detected according to a clock recovered in the receiver. The recovered clock is adjusted based on a combination of weights assigned to at least some edge transitions among the plurality of successive edge transitions. In particular, (i) each very early transition is assigned a first weight having a first sign, (ii) each early transition is assigned a secondweight having the first sign, (iii) each late transition is assigned a third weight having a second sign opposite from the first sign, and (iv) each very late transition is assigned a fourth weight having the second sign.

Description

[0001] cross reference [0002] This application claims prior precedence to U.S. Patent Application No. 15 / 809,065, filed November 10, 2017, entitled "Receiver for Recovering Signal Clock from Received Data Signal and Clock Recovery Method Implemented in Receiver" Priority application is hereby incorporated by reference in its entirety. technical field [0003] The invention relates to the technical field of digital communication, in particular to a method for recovering a clock from a received data signal implemented in a receiver and a receiver for implementing the clock recovery method. Background technique [0004] In many technologies, a digital data stream is transmitted without a clock signal, so clock recovery is required at the receiving end to retrieve the transmitted data. Finally, the receiver generates a clock from an approximate reference frequency and phase aligns the generated clock with the data stream. This process is called clock-data recovery (CDR). ...

AI Technical Summary

Problems solved by technology

However, existing techniques require complex receiver front-end components that take up space and consume power

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