Pulse or digital communications – Testing
Reexamination Certificate
2011-07-12
2011-07-12
Payne, David C (Department: 2611)
Pulse or digital communications
Testing
C455S115100, C702S130000
Reexamination Certificate
active
07978754
ABSTRACT:
A communication channel is operated by storing a calibrated parameter value in nonvolatile memory during manufacturing, testing, or during a first operation of the device. Upon starting operation of the communication channel in the field, the calibrated parameter value is obtained from the nonvolatile memory, and used in applying an operating parameter of the communication channel. After applying the operating parameter, communication is initiated on a communication channel. The operating parameter can be adjusted to account for drift immediately after starting up, or periodically. The process of starting operation in the field includes power up events after a power management operation. In embodiments where one component includes memory, steps can be taken prior to a power management operation using the communication channel, such as transferring calibration patterns to be used in calibration procedures.
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Best Scott C
Perego Richard E
Yeung Philip
Haynes Beffel & Wolfeld LLP
Nguyen Leon-Viet Q
Payne David C
Rambus Inc.
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