Television – Image signal processing circuitry specific to television – Special effects
Reexamination Certificate
2005-08-04
2009-06-23
Kostak, Victor R (Department: 2622)
Television
Image signal processing circuitry specific to television
Special effects
C348S441000, C348S458000, C382S299000
Reexamination Certificate
active
07551230
ABSTRACT:
The present invention relates to an information signal processor and the like preferable for use in the case of converting a format of an image signal or converting an image size. An input image signal Vin (525i signal) is converted into an output image signal Vout (such as 1080i signal, XGA signal, or 525i signal for obtaining an image to be displayed in a different magnification). A class code CL is obtained from tap data selectively extracted from the Vin and corresponding to each pixel (pixel at a target position) within a unit pixel block, which constitutes Vout. A coefficient production circuit136produces coefficient data for each class, which is used at the time of calculating the pixel data at the target position, based on the coefficient seed data for each class and position information h, v about the target position generated in a position information generation circuit139. A calculation circuit127provides pixel data y1 to yp of the target position according to the estimated equation using the tap data xi corresponding to the target position and the coefficient data Wi corresponding to the class code CL.
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Asakura Nobuyuki
Ayata Takahide
Hiraizumi Kei
Kondo Tetsujiro
Morimura Takuo
Frommer William S.
Frommer & Lawrence & Haug LLP
Kostak Victor R
Sony Corporation
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