Patents Assigned to Showscan Film Corporation
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Patent number: 4889423Abstract: A method is described for converting a strip of film designed for showing at 60 fps (frames per second) to a film that can be shown at 24 fps. Instead of forming the 24 fps film so it alternately contains every second and every third frame of the 60 fps film, each frame of the 24 fps film includes two distinct overlapping successive images of the 60 fps film.Type: GrantFiled: June 26, 1986Date of Patent: December 26, 1989Assignee: Showscan Film CorporationInventor: Douglas Trumbull
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Patent number: 4874162Abstract: An amusement ride is provided, of the type that moves and tilts passengers viewing a motion picture, which is more versatile than prior rides. A plurality of passenger-holding frames is provided, that are all moved in sychronism, each by a separate set of actuators, while the passengers view a stationary screen. The passenger-holding frame is pivoted up and down on a beam which is supported by only two largely vertical actuators, while two pairs of links or arms limit movement of the beam.Type: GrantFiled: November 14, 1988Date of Patent: October 17, 1989Assignee: Showscan Film CorporationInventors: Douglas Trumbull, David Collins, Wayne Smith, Robert Spieldiener
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Patent number: 4798376Abstract: An amusement ride is provided, of the type that moves and tilts passengers viewing a motion picture, which is more versatile than prior rides. A plurality of passenger-holding frames is provided, that are all moved in synchronism, each by a separate set of actuators, while the passengers view a stationary screen. The passenger-holding frame is pivoted up and down on a beam which is supported by only two largely vertical actuators, while two pairs of links or arms limit movement of the beam.Type: GrantFiled: November 16, 1987Date of Patent: January 17, 1989Assignees: Showscan Film Corporation, Intamin Corp. Inc. Est.Inventors: Douglas Trumbull, David Collins, Wayne Smith, Robert Spieldiener
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Patent number: 4783165Abstract: A motion picture camera is described which minimizes waste of film during the start up of the camera, when the supply and takeup reels are rapidly accelerated until film is moving at the proper speed, at which time the camera begins to take pictures. A reel motor is energized to apply a high torque that rapidly accelerates the takeup reel at an acceleration limited by the amount of film on the takeup reel, while the camera motor which moves film through the film gate region is controlled to move film towards the takeup reel at a speed that maintains a moderate level of film tension between the film gate region and the takeup reel.Type: GrantFiled: February 13, 1987Date of Patent: November 8, 1988Assignee: Showscan Film CorporationInventor: Robert Auguste
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Patent number: 4752065Abstract: An amusement ride is provided, of the type that moves and tilts passengers viewing a motion picture, which is more versatile than prior rides. A plurality of passenger-holding frames is provided, that are all moved in sychronism, each by a separate set of actuators, while the passengers view a stationary screen. The passenger-holding frame is pivoted up and down on a beam which is supported by only two largely vertical actuators, while two pairs of links or arms limit movement of the beam.Type: GrantFiled: December 19, 1985Date of Patent: June 21, 1988Assignees: Showscan Film Corporation, Intamin Corp. Inc. EstInventors: Douglas Trumbull, David Collins, Wayne Smith, Robert Spieldiener
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Patent number: 4697896Abstract: A projector is described, of the type wherein a motor-driven sprocket wheel cyclically pulls a film frame-by-frame through a film gate, by applying a large accelerating voltage at the beginning of each cycle, followed by a decelerating voltage and a fine-positioning sequence, which assures that the film will lie close to the final position and be moving slowly at the beginning of the fine-positioning sequence. A determination is made as to whether the film has moved a predetermined distance by a predetermined time after the beginning of each cycle, and the accelerating voltage for the next cycle may be changed to cause such predetermined movement at that predetermined time for subsequent cycles.Type: GrantFiled: September 30, 1986Date of Patent: October 6, 1987Assignee: Showscan Film CorporationInventor: Charles Fox
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Patent number: 4645318Abstract: An apparatus is described for projecting a motion picture image on a screen that extends 360.degree. around the viewers, by moving a film past a slit through which light shines, forming an image of the slit on the screen, and rapidly revolving the slit image around the screen. The film moves rapidly enough to permit the projected slit image to rotate around the screen at a rate of at least about 50 rotations per second. The film, which moves continuously, can be free of sprocket holes and can be driven by a capstan drive, and the film can have a thickness less than half the thickness of present film stock so that a roll of film of moderate diameter can last several minutes.Type: GrantFiled: August 2, 1985Date of Patent: February 24, 1987Assignee: Showscan Film CorporationInventor: Douglas Trumbull
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Patent number: 4560260Abstract: A method is described for producing and projecting a theater quality entertainment motion picture, by photographing and then projecting the motion picture on a screen, which creates an unusually vivid impression of realism. The film frames have a resolution of over 40 line pairs per milimeter, and each frame has an area of at least 0.36 square inch, which creates more than 10 million pixels per frame on the film and on the screen. The illumination level on the screen is at least 15 foot lamberts. The film frames are photographed and projected at a predetermined constant rate of more than 50 frames per second, such as 60 fps. The high resolution and light level, combined with the unusually high frame rate, has been found to produce an unusually vivid impression of realism.Type: GrantFiled: October 10, 1984Date of Patent: December 24, 1985Assignee: Showscan Film CorporationInventor: Douglas Trumbull
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Patent number: 4477160Abstract: A method is described for producing and projecting a theater quality entertainment motion picture, by photographing and then projecting the motion picture on a screen, which creates an unusually vivid impression of realism. The film frames have a resolution of over 40 line pairs per milimeter, and each frame has an area of at least 0.36 square inch, which creates more then 10 million pixels per frame on the film and on the screen. The illumination level on the screen is at least 15 foot lamberts. The film frames are photographed and projected at a predetermined constant rate of more than 50 frames per second, such as 60 fps. The high resolution and light level, combined with the unusually high frame rate, has been found to produce an unusually vivid impression of realism.Type: GrantFiled: August 26, 1982Date of Patent: October 16, 1984Assignee: Showscan Film CorporationInventor: Douglas Trumbull
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Patent number: D292223Type: GrantFiled: May 17, 1985Date of Patent: October 6, 1987Assignee: Showscan Film CorporationInventor: Douglas Trumbull
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Patent number: D292224Type: GrantFiled: May 17, 1985Date of Patent: October 6, 1987Assignee: Showscan Film CorporationInventor: Douglas Trumbull