Television – Basic receiver with additional function – Multimode
Patent
1998-03-30
2000-12-05
Hsia, Sherrie
Television
Basic receiver with additional function
Multimode
348446, H04N 546, H04N 701
Patent
active
061574120
ABSTRACT:
A detector for a video signal includes a pixel comparator that compares a plurality of values of pixels of a first field of the video signal with corresponding pixels of a second field of the video signal. The second field is a second preceding field of the video signal in relation to the first field. The resultant values from the comparison is a set of pixel difference values. A counter determines a count value representative of the number of the set of pixel difference values that are either greater than a threshold value or less than the threshold value. A thresholder circuit determines a variable statistical value, such as an average, based upon a preceding series of the count values. The thresholder circuit compares the variable statistical value with the count value, or a percentage thereof, to determine whether the variable statistical value is greater than the count value or whether the statistical value is less than the count value. The sequence analyzer determines whether the result of the thresholder circuit follows a recognizable pattern.
REFERENCES:
patent: 4876596 (1989-10-01), Faroudja
patent: 4881125 (1989-11-01), Krause
patent: 4933759 (1990-06-01), Van der Meer et al.
patent: 4998287 (1991-03-01), Katznelson et al.
patent: 5267035 (1993-11-01), Weckenbrock et al.
patent: 5317398 (1994-05-01), Casavant et al.
patent: 5365280 (1994-11-01), De Haan et al.
patent: 5398071 (1995-03-01), Gove et al.
patent: 5452011 (1995-09-01), Martin et al.
patent: 5550592 (1996-08-01), Markandey et al.
patent: 5563651 (1996-10-01), Christopher et al.
Modem Prasanna L.
Westerman Larry Alan
Hsia Sherrie
Sharp Laboratories of America Inc.
LandOfFree
System for identifying video fields generated from film sources does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for identifying video fields generated from film sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for identifying video fields generated from film sources will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-966112