Television – Format conversion – Changing number of lines for standard conversion
Reexamination Certificate
2006-05-09
2006-05-09
Hsia, Sherrie (Department: 2614)
Television
Format conversion
Changing number of lines for standard conversion
C348S441000
Reexamination Certificate
active
07042513
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, is converted into an output image signal, Vout that has different format and/or size therefrom. A class code, CL, is obtained from tap data extracted from the Vin and corresponding to each pixel (pixel at a target position) within a unit pixel block, which constitutes Vout. Product-sum device137generates the coefficient data, ai0to ai8, in the upper layered production equation in each class according to the lower layered production equation using coefficient seed data, bij0to bij8, of each class and resolution information, g and f, during vertical blanking period, while it generates the coefficient data, Wi, in the estimated equation, according to the upper layered production equation during effective vertical scanning period using the coefficient data, ai0to ai8, in connection with the class code CL and phase information, h and v. A calculation circuit127provides pixel data, y, at the target position according to the estimated equation using the tap data, xi, corresponding to the target position and the coefficient data, Wi, obtained by the product-sum device137.
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Asakura Nobuyuki
Ayata Takahide
Hiraizumi Kei
Kondo Tetsujiro
Morimura Takuo
Frommer William S.
Frommer & Lawrence & Haug LLP
Hsia Sherrie
Sony Corporation
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