| 摘要 |
PROCESS CAN BE USED IN A DIGITAL TELEVISION DECODER TO SELECT AND EXECUTE AN IMAGE OF AN EXECUTABLE SOFTWARE, THE PROCESS CONSISTING OF STARTING A SELF-EXECUTABLE BOOT SOFTWARE TO LOAD AN IMAGE, THE PROCESS BEING CHARACTERIZED IN THAT A REFERENCE TO ONE OF ( N-M ) IMAGES STORED IN AMEMORY AREA WITHOUT ERASE PROTECTION, AND THEN FOLLOWING A ROUTINE CARRIED OUT EACH TIME THAT THE DECODER IS INITIALIZED, V1) IT IS CHECKED THAT THE REFERENCE TABLE IS PRESENT AND UNCORRUPTED, P) THE TABLE IS READ IN SEQUENCE, UNTIL THE STORED IMAGES TO WHICH EACH REFERENCE CORRESPONDS ARE REACHED, V2) IT IS CHECKED THAT THE IMAGE CORRESPONDING TO THE FIRST REFERENCE REACHED IS UNCORRUPTED, 1) IF THE IMAGE CHECKED IN STEP C) IS UNCORRUPTED, EXECUTION OF THIS IMAGE IS STARTED, E) IF THE IMAGE THAT WAS JUST CHECKED IS CORRUPTED, STEP V2) AND POSSIBLY 1) ARE CARRIED OUT AGAIN FOR THE NEXT REFERENCE, UNTIL AN UNCORRUPTED IMAGE IS FOUND, FINALLY, IF THE TABLE IS CORRUPTED OR IF ALL OF THE ( N-M ) IMAGES ARE FOUND TO BE CORRUPTED AFTER BROWSING THROUGH THE IMAGES STORED IN THE MEMORY AREA WITHOUT ERASE PROTECTION, THEN STEP E) IS PERFORMED FOR THE M IMAGES STORED IN THE AREAS WITH ERASE PROTECTION, THESE M IMAGES BEING READ IN AN ORDER DEFINING THEIR ORDER OF PREFERENCE.
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