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AssigneeArris International, Inc.
InventorsDerek Winters, Allen Walston, Jeff Andrews, Robert Easterling, Russell Enderby
Estimating the term…
A software routine that writes downloaded updated operating system software over existing application code to flash memory of a cable modem in an inverted arrangement. If the download process is interrupted before the update can be verified, a pointer still points to the existing code to facilitate update-interruption recovery. After verifying a successful update, a new pointer is generated that points to the updated operating system. Then, updated application code can be downloaded and stored in the flash memory over the old operating system code. Thus, each time an update is performed, the location of the operating system within the flash memory with respect to the location of the application code is inverted. This allows the size of flash memory to be reduced, as only one copy of the operating system and application code must be stored, while retaining capability to recovery from an incomplete download.
A method for updating the software load of a network communication device with updated software code received from a head end and stored into RAM memory of the communication device comprising:
10-13. (canceled)
A system for storing software in a network communications device comprising within a DOCSIS compatible cable modem a flash memory device that is large enough to store one copy of essential code and one copy of nonessential code, but not large enough to store two copies of each type of code.
A method for updating the software load of a network communication device with updated software code received from a head end and stored into RAM memory of the communication device comprising:
Dependencies are inferred from the claim text.