04608702 is referenced by 118 patents and cites 2 patents.

A method for rapidly recovering the clock from Manchester-encoded signals using simple digital techniques is provided for use in an inexpensive Manchester-encoding receiver. The received Manchester-encoded signal is monitored to determine zero-voltage crossing. At each such crossing the frequency of the recovered clock is adjusted by comparing the occurrence of the zero-crossing with respect to the midpoint of the period of the presently-generated recovered clock. Shorten, center or lengthen adjustment signals are generated as a result of this comparison which are used to shorten or lengthen, by 1/16 increments of the inter-bit period of the received data signal, the period of the next-generated recovered-clock. The method is readily implemented as a sixteen-stage programmable counter providing a phase-locked loop.

Title
Method for digital clock recovery from Manchester-encoded signals
Application Number
6/684919
Publication Number
4608702
Application Date
December 21, 1984
Publication Date
August 26, 1986
Inventor
Roy J Levy
Ashland
OR, US
Frederic J Hirzel
Cupertino
CA, US
Agent
Kenneth B Salomon
Patrick T King
Assignee
Advanced Micro Devices
CA, US
IPC
H04L 7/02
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