Television – Format conversion – Line doublers type
Reexamination Certificate
2006-03-14
2006-03-14
Hsia, Sherrie (Department: 2614)
Television
Format conversion
Line doublers type
C348S452000
Reexamination Certificate
active
07012649
ABSTRACT:
Image refreshers enhance edge portions of field data stored in field memories, and then store the result in field memories. An intra-field interpolating unit interpolates a moving image pixel using a single piece of field data stored in the field memory, and then stores the moving image pixel in an interpolation memory. An inter-field interpolating unit interpolates a still image pixel using two pieces of field data stored in the field memories, and then stores the still image pixel in an interpolation memory. A still/moving image area determining unit determines whether each pixel of a progressive picture is a still image pixel or a moving image pixel. On the basis of a result of the determination by the still/moving image area determining unit, a selector reads a pixel value in the interpolation memory for a moving image pixel, and reads a pixel value from the interpolation memory for a still image pixel.
REFERENCES:
patent: 5428398 (1995-06-01), Faroudja
patent: 6141056 (2000-10-01), Westerman
patent: HEI 3-42832 (1987-02-01), None
Markhauser et al. “Motion Adaptive Pro-Scan Converter With Two Dimensional Contour Enhancement” IEEE Transaction on Consumer Electronics, vol. 36, No. 2, May 1990.
Hsia Sherrie
Kananen Ronald P.
Rader & Fishman & Grauer, PLLC
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