EP0187262A2
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Apparatus for manipulating images in a video display
Assignee: General Electric Co
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Filing: 1985-12-04
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Granted: —
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Expires: 2005-12-04
Abstract
Abstract Control of a split screen display and the display of sequential images on a display is effected by rotation of a trackball. Pulse trains generated by rotation of the trackball are inputted to a microprocessor which controls the junctions in a split screen and the image data applied to a display.
Inventors
- 👤 Jeffrey Daniel Rockel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 22:07
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/048; G06F3/0481
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
In scanning apparatus in which cross sectional images are generated by tomographic reconstruction techniques, apparatus for selectively controlling the display of images comprising memory means for storing addressable data for a plurality of images, a trackball for generating at least a first pulse train in response to rotation of said trackball, and microprocessor means connected to said trackball and to said memory means and responsive to said pulse train for selecting data from at least two images for viewing on a display screen.
Claim 2
Dependent Claim
83 words
In scanning apparatus in which cross sectional images are generated by tomographic reconstruction techniques, apparatus for selectively controlling the display of images comprising memory means for storing addressable data for a plurality of images, a trackball for generating at least a first pulse train in response to rotation of said trackball, and microprocessor means connected to said trackball and to said memory means and responsive to said pulse train for selecting data from at least two images for viewing on a display screen.
Claim 3
Dependent Claim
22 words
Apparatus as defined by Claim 1 wherein said at least two images are viewed sequentially in response to rotation of said trackball.
Claim 4
Dependent Claim
49 words
Apparatus as defined by Claim 2 wherein said at least two images are selected from a first series of images, and said trackball generates a second pulse train,.said microprocessor means being responsive to said second pulse train for selecting data from one of a plurality of series of images.
Claim 5
Dependent Claim
36 words
Apparatus as defined by Claim 3 wherein said first pulse train is generated by rotating said trackball along a first axis and said second pulse train is generated by rotating said trackball along a second axis.
Claim 6
Dependent Claim
33 words
Apparatus as defined by Claim 1 wherein portions of said at least two images are viewed simultaneously, rotation of said trackball determining a junction line between said portions of at least two images.
Claim 7
Dependent Claim
53 words
Apparatus as defined by Claim 5 wherein portions of at least three images are viewed simultaneously,rotation of said trackball generates a second pulse train, said microprocessor means being responsive to said first and second pulse trains for determining junction lines between said first and second images and between said second and third images.
Claim 8
Dependent Claim
70 words
Apparatus as defined by Claim 6 wherein said memory means comprises three buffer memories and three drivers connected respectively to said three buffer memories, said microprocessor means including first and second counters for counting to first and second boundary lines, comparator means for comparing counts from said first and second counters with count from an address counter, said comparator means controlling said three drivers in response to comparing said counts.
Claim 9
Dependent Claim
87 words
Apparatus as defined by Claim 5 wherein said memory means includes first and second memories for storing first and second images, respectively, said first memory storing data for a top portion of a first image and a bottom of a second image, said second memory storing data for the top portion of said second image and the bottom portion of said first image, said microprocessor means including buffer means for transferring data between said first and second memories in response to said at least first pulse train.
Claim 10
Dependent Claim
57 words
Apparatus as defined by Claim 5 wherein said memory means includes first and second memories for respectively storing first and second images, first and second drivers connected to said first and second memories, respectively, said microprocessor means including comparator means for comparing a refresh address with a boundary count for selectively activating said first and second drivers.
References Cited (Backward Citations)
No citation records indexed.
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