System and method for registering motion picture film
AssigneeMaxiVision Cinema Technology
InventorsDean K. Goodhill, Ty Safreno, Don P. Behrns
Life of this patent
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Abstract
A system and method for registering the frames of film with respect to an aperture in a motion picture projector. A registration reference mark is applied to each frame corresponding to the location of the frame on the film. When the film is intermittently stopped in the projector's film gate, the registration reference mark is read to determine the location of that frame relative to the immediately preceding frame. If the frame in the gate is misregistered, the gate is moved to correctly register the frame prior to projection. By properly registering the frames, the “jitter”and “weave” associated with conventional projectors is eliminated and resolution of the projected film image is enhanced.
Claims26
A method of registering frames of film with respect to an aperture in a motion picture projector, comprising:
- a. applying registration information to the film corresponding to the location of the frames on the film;
- b. moving the film through the projector and intermittently stopping the film frame-by-frame with respect to the aperture;
- c. reading the registration information associated with each frame prior to projection to determine the location of the frame with respect to the aperture;
- d. determining the amount of correction that is necessary to achieve proper registration of the frame with respect to the aperture prior to projection;
- e. moving the frame into proper registration with respect to the aperture prior to projection.
A system for registering frames of film in a motion picture film projector having a gate for receiving film during intermittent advancement of the film through the projector, comprising:
- a. an actuator connected to the gate that is adapted to move the gate relative to the aperture;
- b. a sensor that reads registration information on the film associated with each frame to determine the location of the frame with respect to the aperture prior to projection;
- and
- c. a registration processor connected to the sensor and the actuator that is adapted to determine the amount of movement that is necessary to move the gate and thus the frame into proper registration with respect to the aperture.
A device for registering motion picture film in a projector, comprising:
- a. a gate for receiving film and intermittently stopping frames of the film relative to an aperture, wherein the gate is moveable with respect to the aperture;
- b. an actuator connected to the gate, wherein the actuator is configured to move the gate relative to the aperture;
- and
- c. a processor that commands the actuator to move the gate relative to the aperture based on registration information on the film adjacent to the frames.
Motion picture film, comprising:
- a. a length of motion picture film having a plurality of projectable images on the film, wherein each image is defined by a frame;
- and
- b. registration information applied to the film adjacent to a plurality of the frames, wherein the registration information is located in the same position relative to each of the frames, the registration information comprising a plurality of different shapes that are capable of being read by a sensor, when the shapes comprise at least a circle and a square or rectangle, and wherein the diameter of the circle is equal to the width of the square or rectangle.
Dependencies are inferred from the claim text.