Title:
METHOD AND DEVICE IDENTIFYING VIDEO FIELD OBTAINED FROM FILM SOURCE BY USING 2-2 AND 3-2 PULL-DOWN SEQUENCE
Document Type and Number:
Japanese Patent JP3908802
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To identify a video material with high reliability resulting from a film as a generating source by detecting it when only a correlation device indicates a count value representing the film mode operation.
SOLUTION: A receiver is provided with a video signal timing source 102, and the signal source 102 outputs a timing signal group represented by an interlace luminance output signal Y and an English letter T for a whole. The video signal Y is mixture of a film source and a camera source and interlaced. Then the bit group is compared with a threshold to obtain a signal denoting a 1st threshold and the 1st threshold and sign bits are supplied to a 1st input terminal and a 2nd input terminal of each of five correlation devices, the correlation devices are sequentially addressed at a field rate and when only one correlation device indicates a count denoting the film mode operation, it is detected.
Inventors:
Todd The J Christopher
Carlos Correa
Carlos Correa
Application Number:
JP35471495A
Publication Date:
April 25, 2007
Filing Date:
December 27, 1995
Export Citation:
Assignee:
THOMSON CONSUMER ELECTRONICS,INCORPORATED
International Classes:
H04N5/253; H04N5/44; H04N7/01; H04N9/11; (IPC1-7): H04N5/253; H04N7/01
Domestic Patent References:
| JP5211629A | ||||
| JP5183807A | ||||
| JP4072966A | ||||
| JP6105292A | ||||
| JP4137892A | ||||
| JP3058677A | ||||
| JP5110943A | ||||
| JP6292075A |
Foreign References:
| US5291280 |
Attorney, Agent or Firm:
Riki Kikoshi
Kozo Aoyama
Kozo Aoyama