Title:
MOTION PICTURE SUBTITLE SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO2004015492
Kind Code:
A3
Abstract:
In a motion picture subtitle system a shutter such as a mechanical dowser, LCLV, or E/0 diffuser is inserted in the optical path between the supplemental projector and the motion picture screen and synchronized to the projection of the subtitles to reduce visual artifacts and enhance the cinematic presentation. A controller is arranged to receive the subtitles from a storage medium, to provide the subtitles to the supplemental projector in synchronism with the projection of the motion picture, and to alternately cause the shutter to pass the modulated light beam during an "on" state in synchronism with the motion picture so the subtitles are superimposed at desired times on desired portions of the motion picture and cause the shutter to attenuate the light beam during an "off" state.
Inventors:
PLUNKETT BRADLEY J
Application Number:
PCT/US2003/024531
Publication Date:
June 24, 2004
Filing Date:
August 06, 2003
Export Citation:
Assignee:
DIGITAL THEATER SYST INC (US)
International Classes:
G02F1/13; G03B21/00; G03B21/26; G03B21/32; H04N5/74; H04N5/445; (IPC1-7): G03B21/32
Domestic Patent References:
| WO2001086350A1 | 2001-11-15 | |||
| WO2000052525A1 | 2000-09-08 |
Foreign References:
| US5959717A | 1999-09-28 | |||
| US5123727A | 1992-06-23 |
Other References:
See also references of EP 1546800A4
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