SETTOP CABLE TELEVISION CONTROL DEVICE AND METHOD INCLUDING BOOTLOADER SOFTWARE AND CODE VERSION TABLE FOR MAINTAINING AND UPDATING SETTOP RECEIVER OPERATING SYSTEM SOFTWARE
Patent №
US 7,069,578
Granted
2006-06-27
Filed 2000
Owner
SCIENTIFIC-ATLANTA, INC.
Lab
—
AI components
1
evo
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09549292
A cable television settop receiver and method includes a software component and a frequency acquisition method for determining the ability of the operating system/control program in the settop receiver to operate the settop receiver. The software component, referred to as a “bootloader”, executes on the processor contained in the settop receiver and determines the capability and version of the settop receiver operating system/control program. If the bootloader determines that the operating system/control program should be updated, the bootloader initiates a download sequence, the performance of which allows the proper operating system/control program to be downloaded to the settop receiver. The download occurs after receipt, by the settop receiver, of a code version table (CVT). The CVT includes information that the settop receiver uses to determine which frequency to tune to receive the replacement operating system/control program. In accordance with another aspect of the invention, the bootloader initiates a frequency hunt sequence to determine the proper frequency to which to tune to receive the CVT. The frequency hunt sequence covers the entire spectrum of possible frequencies over which to receive the CVT.
AI classification
Ownership
SCIENTIFIC-ATLANTA, INC.
assignment · 107520501
Assignors
PRUS, BOHDAN, LETT, DAVID B.
On an employer assignment, the assignors are typically the inventors.