| 摘要 |
PROBLEM TO BE SOLVED: To provide a video signal processing apparatus in which a program in a video signal processing apparatus, such as a set-top box can be easily updated even in various operation modes, such as maintenance of the apparatus. SOLUTION: The video signal processing apparatus comprises a program-holding unit for holding operation program that are freely updated, external storage medium reading means for reading a content stored in an external storage medium, when the detachable external storage medium is loaded, and a video signal processing unit for reading the operation program from the program holding unit and at the same time, performing a video signal processing according to this. The video signal processing apparatus includes a program updating unit which updates the operation program by an update program, when the update program can be obtained from the external storage medium, when it is detected that the external storage medium is loaded to the external storage medium reading means. COPYRIGHT: (C)2008,JPO&INPIT
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