Television – Format conversion – Line doublers type
Reexamination Certificate
2008-04-08
2008-04-08
Lee, M. (Department: 2622)
Television
Format conversion
Line doublers type
C348S458000
Reexamination Certificate
active
10509047
ABSTRACT:
Interlaced video upconverted to progressive video has improved diagonal enhancement. A plurality of averages and differences are determined from different pixels near a given output pixel, including: a vertical average, first and second left diagonal averages, first and second right diagonal averages, a vertical difference, first and second left diagonal differences, and first and second right diagonal differences. A selection is made among the averages based on an absolute value of a minimal difference among the differences. The selection is constrained to select the vertical average if the differences among the averages are ambiguous, that is, when a value for the given output pixel is not within a range of values defined by pixels vertically adjacent to the given output pixel or when a minimal difference among the respective differences is not unique.
REFERENCES:
patent: 4967263 (1990-10-01), Dieterich
patent: 5046164 (1991-09-01), Hurst
patent: 5093721 (1992-03-01), Rabii
patent: 5128747 (1992-07-01), Isnardi et al.
patent: 5339109 (1994-08-01), Hong
patent: 5347599 (1994-09-01), Yamashita et al.
patent: 5386237 (1995-01-01), Knee
patent: 5467145 (1995-11-01), Limberg
patent: 5481311 (1996-01-01), Boie
patent: 5663771 (1997-09-01), Raby
patent: 5742348 (1998-04-01), Kuwahara et al.
patent: 5796437 (1998-08-01), Muraji et al.
patent: 6037990 (2000-03-01), Ogawa et al.
patent: 6295091 (2001-09-01), Huang
patent: 6384873 (2002-05-01), Rumreich et al.
patent: 6421090 (2002-07-01), Jiang et al.
patent: 6452639 (2002-09-01), Wagner et al.
patent: 6515706 (2003-02-01), Thompson et al.
patent: 6573941 (2003-06-01), Willis et al.
patent: 6650790 (2003-11-01), Arbeiter et al.
patent: 6992725 (2006-01-01), Mohsenian
patent: 7116372 (2006-10-01), Kondo et al.
patent: WO 03084110 (2003-10-01), None
Search Report Dated Aug. 8, 2003.
European Search Report Dated Feb. 28, 2007.
Fried Harvey D.
Lake Joseph J.
Lee M.
Thomson Licensing
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