Methods and apparatus for use in updating application...

Details Methods and apparatus for use in updating application... Methods and apparatus for use in updating application...

2005-11-09

2010-10-12

Bullock, Jr., Lewis A (Department: 2193)

Data processing: software development, installation, and managem

Software upgrading or updating

Network

C717S168000, C717S170000, C717S171000

Reexamination Certificate

active

07814478

ABSTRACT:
An illustrative method of the present application is for use in updating an application program in memory of a network device. An application program having a length L1is initially stored in memory of the network device from a memory address A1to a memory address A2−1. A download procedure is performed by the network device to receive an updated application program having a length L2>L1.This updated application program is stored in the memory from a memory address A3=A2+(L2−L1) for the length L1, and continuing in a circular buffer fashion from the memory address A2for the length L2−L1. The application program is then copied over with the updated application program beginning at the memory address A1. With this technique, if a failure occurs while copying over the application program, no portion of the original updated application program will be written over.

REFERENCES:
patent: 5778234 (1998-07-01), Hecht et al.
patent: 6343379 (2002-01-01), Ozawa et al.
patent: 6470496 (2002-10-01), Kato et al.

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