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US 4,600,200 AGranted
Three-dimensional image display system
AssigneeIkegami Tsushinki Co., Ltd.
InventorsMasaya Oka, Sumio Nakagawa
Life of this patent
Estimating the term…
Abstract
A three-dimensional image display system comprising a video information memory, storing video information in the form of a perspective view, a reading circuit for reading out the video information stored in the video information memory while scrolling the stored video information in an oblique direction with respect to the perspective view, and a display for displaying in perspective the read out video information in such a way that the displayed picture is obliquely scrolled as time elapses.
Claims19
A three-dimensional image display system, comprising:
- (a) memory means for storing video information in the form of a prespective view of a background scene;
- (b) reading means for reading out said video information stored in said memory means while scrolling the stored video information in an oblique direction with respect to said perspective view;
- and
- (c) display means, including a display screeen and responsive to the read out scrolled video information, for displaying said read out video information in the form of a perspective view on said display screen with the displayed picture being obliquely scrolled, with respect to the horizontal axis of said display screen, in said display screen in accordance with the lapse of time.
1 more element
A three-dimensional image display system, comprising:
- video display means for displaying an image on a display screen;
- first means for providing video information in the form of a perspective view of a background scene;
- second means for designating a picture to be displayed during a vertical blanking period of the display means, said picture being a portion of the perspective view of a background scene;
- third means for storing image forming units which form said video information;
- fourth means for designating a vertical scanning position of the designated picture for every width of an image forming unit;
- fifth means for designating a horizontal scanning position of the designated picture by offsetting the horizontal scanning position in proportion to an inclination angle of the perspective view for every width of an image forming unit;
- sixth means for shifting the entire horizontal scanning position by a predetermined distance in a horizontal direction;
- seventh means, responsive to the outputs from said fourth means and said sixth means, for designating addresses in said third means for every image forming unit to obtain a picture map;
- eighth means for reading out prespective picture elements on the horizontal line of every image forming unit from the designated address in said third means;
- ninth means for temporarily storing the contents of the plurality of picture elements read out from said eighth means;
- tenth means for generating a picture clock;
- and
- eleventh means for reading out said contents of the picture elements from said ninth means in the sequence of the pictures to be scrolled in synchornism with said picture clock so that the scanning position of the respective scanning line is offset in accordance with said inclination angle, and for feeding the read out contents of said ninth means to said video display means to provide a moving perspective view of the background scene which moves, on said display screen, obliquely to the horizontal axis of said display screen.
10 more elements
Dependencies are inferred from the claim text.