Information signal processing device, information signal...

Details Information signal processing device, information signal... Information signal processing device, information signal...

2006-06-13

2006-06-13

Lee, Michael H. (Department: 2614)

Television

Format conversion

Changing number of lines for standard conversion

C348S448000

Reexamination Certificate

active

07061539

ABSTRACT:
The present invention relates to an information signal processor and the like preferable for use in the case where a SD signal is converted into a HD signal. A space class and a movement class are detected from the tap pixel data, which is selectively extracted from the SD signal, correspond to a target position in the HD signal. In a memory bank135,a coefficient seed data in each class and term selection information are stored. In the coefficient production circuit136,coefficient data Wi in each class is produced according to a production equation containing the term selected by term selection information, using the coefficient seed data in each class and the values of parameters h, v for image adjustment. In a calculation circuit127,pixel data at the target position in the HD signal is obtained from the prediction tap data xi and the coefficient data Wi, by use of an estimated equation. The compression of the sizes of the coefficient seed data and the calculator is enabled without lowering calculation accuracy, and the approximate accuracy at a coefficient curved surface is also increased.

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