Early self-validation of persistent memory during boot in an...

Details Early self-validation of persistent memory during boot in an... Early self-validation of persistent memory during boot in an...

2005-09-16

2010-06-29

Petkovsek, Daniel (Department: 2874)

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

C398S135000, C398S138000

Reexamination Certificate

active

07744291

ABSTRACT:
An operational optical transceiver configured to self-validate a boot image loaded from the persistent memory early in the boot process. The optical transceiver includes a persistent memory, a controller, and a system memory. The controller initializes the boot process and begins to load information from the persistent memory to the system memory. Next, the controller detects early in the boot process boot image verification data in the information being sent to the system memory. The controller then determines if the boot image verification data has an expected value. If the verification data includes the expected value, the controller continues the boot process. If the verification data does not include the expected value, the controller will retry the boot process a predetermined number of times and will enter a default operational state if the expected value is not detected while retrying the boot process the predetermined number of times.

REFERENCES:
patent: 6807630 (2004-10-01), Lay et al.
patent: 6854054 (2005-02-01), Kavanagh
patent: 7522840 (2009-04-01), Dybsetter et al.
patent: 7533254 (2009-05-01), Dybsetter et al.
patent: 2004/0022537 (2004-02-01), Mecherle et al.

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