Television – Special applications – Film – disc or card scanning
Patent
1995-02-23
1997-09-23
Faile, Andrew
Television
Special applications
Film, disc or card scanning
348513, 348105, 348107, 360 3, H04N 336, H04N 5253, H04N 911, H04N 947
Patent
active
056710089
ABSTRACT:
A portable and economical telecine machine for rapidly converting images recorded on motion picture film to electronically available and manipulable video signals with extremely high frame accuracy and temporal correspondence. On a commercially-available flatbed editing table, motion picture film passes through a light-tight enclosure surrounding a strobe, the film, a mirror, and a video camera. When the film is centered between the strobe and the camera, the strobe flashes to optically transmit the film image to the video camera. The film is then advanced exactly one single film frame to record the next image. In this way, film images are recorded frame by frame by a video camera, converting the film images into video signals. Passage of the film is monitored by a film sprocket coupled to a bi-phase encoder. When the image is optically transmitted to the camera, it is recorded in the two next available video fields by the video camera. Four such sequential video fields are followed by a single blank video field in order to create a video signal that temporally or in a time-wise manner corresponds to the original motion picture film. The video signal is transmitted to a signal processing transceiver/control circuit where corresponding time code is associated with the video signal. Initial film frame and time code information are available to the present telecine invention via a laptop computer which also controls the operation of the telecine machine.
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Boccio Vincent F.
Faile Andrew
LandOfFree
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