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
07355650
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
LandOfFree
Upconversion with improved diagonal enhancement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Upconversion with improved diagonal enhancement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Upconversion with improved diagonal enhancement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2794946