Electrical computers and digital processing systems: support – Synchronization of clock or timing signals – data – or pulses – Using delay
Reexamination Certificate
2007-05-03
2009-12-29
Butler, Dennis M (Department: 2115)
Electrical computers and digital processing systems: support
Synchronization of clock or timing signals, data, or pulses
Using delay
C713S503000
Reexamination Certificate
active
07640448
ABSTRACT:
A communication channel includes a first component having a transmitter coupled to a normal signal source, and a second component having a receiver coupled to a normal signal destination. A communication link couples the first and second components. Calibration logic provides for setting an operation value for a parameter of the communication channel, such as by executing an exhaustive calibration sequence at initialization of the link. A tracking circuit, including a monitoring function, tracks drift in the parameter by monitoring a feedback signal that has a characteristic that correlates with drift in the communication channel, and updates, or indicates the need for updating of, the operation value of the parameter in response to the monitoring function.
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Abhyankar Abhijit Mukun
Best Scott C.
Chang Kun Yung
Lambrecht Frank
Butler Dennis M
Haynes Beffel & Wolfeld LLP
Rambus Inc.
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