Satellite control of electronic memory devices

Details Satellite control of electronic memory devices Satellite control of electronic memory devices

1996-09-06

2002-10-22

Chaki, Kakali (Department: 2122)

Data processing: software development, installation, and managem

Software upgrading or updating

Network

C709S220000

Reexamination Certificate

active

06470495

ABSTRACT:

The invention concerns downloading computer programs, or data, to a microprocessor-controlled device, via a satellite link.
BACKGROUND OF THE INVENTION
Many commercial electronic systems are controlled by a microprocessor which runs programs which are stored in non-volatile memory. One example is found in inventory control systems, which communicate with cash registers in a retail establishment.
Sometimes it is desired to change a program which runs on the microprocessor, as when a bug has been found or a new version becomes available. This change in program often requires physical removal of the individual integrated circuits in which the program is stored, and replacement by other integrated circuits which contain the new program.
Such removal-and-replacement disrupts the parties who rely on the systems for their business operations: the systems are rendered inoperative during the removal-and-replacement. In addition, the removal-and-replacement, in general, should be performed by trained technicians, who are not inexpensive to hire.
OBJECTS OF THE INVENTION
An object of the invention is to provide an improved approach to modifying programs and data contained in microprocessor-controlled equipment.
SUMMARY OF THE INVENTION
In one form of the invention, a paging service broadcasts machine code to selected pagers, which store the code, and make it available to nearby microprocessors.


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