Optics: motion pictures – Individual picture plate type – Traveling observer
Reexamination Certificate
2003-12-18
2009-02-10
Fuller, Rodney E (Department: 2862)
Optics: motion pictures
Individual picture plate type
Traveling observer
C040S453000
Reexamination Certificate
active
07489384
ABSTRACT:
An image display system of the type which may be used to present video images to occupants of a vehicle (10), such as a subway train, by briefly illuminating individual images provided on display boards (14) in a tunnel or the like, in sequence, so that occupants of the vehicle (10) observe a motion picture. One aspect of the invention provides a control unit for an image display system including a series of images (16) positioned along the path of a vehicle and lighting for briefly illuminating individual images and a detector (20) arranged to output repeated measurements of the speed of a passing vehicle. The control unit comprises a processing means including a first system arranged to process the repeated speed measurements to produce an instantaneous estimate of the position of the vehicle along the vehicle path, and a second system arranged to derive the illumination timings from the instantaneous estimate of the position of the vehicle.
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Evemy Jeffrey Dennis
White Richard
Fuller Rodney E
Gifford Krass Sprinkle Anderson & Citkowski P.C.
In-Tunnel Ltd.
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