EP0202014A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improvements in video image creation systems
Assignee: Quantel Ltd
•
Filing: 1986-04-07
•
Granted: —
•
Expires: 2006-04-07
Abstract
Abstract A system for creating high resolution video images for later use in printing or the like. The operator draws with a stylus on a touch tablet (28) and video signals are processed to produce a high resolution image corresponding to what is drawn, the signals being stored in a high resolution store (25). While the processing of the signals progresses certain signals are copied to a lower resolution viewing store (26) and these signals read to a display (27) where the image can be viewed by the operator. In one example the store (25) is notionally divided into areas and when the signals representing a stroke drawn by the operator are present in an area the whole area is copied to the viewing store. Typically about four areas need to be copied in a frame period so the stroke drawn by the operator can be seen as he is drawing it. The image on display (27) may be a low resolution version of the whole image or a high resolution version of part of the image.
Inventors
- 👤 Alan Lewis Stapleton
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 05:47
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/36; G09G5/39; G09G5/391
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 words
A video image creation system comprising; operator controlled means (28) for designating points on an image being created, processing means (34) responsive to said operator controlled means for producing high resolution signals representing picture points on said image, storage means (25) for storing said processed picture point signals to provide a representation of said image, said storage means having sufficient storage locations for full resolution, a monitor (27) capable of reproducing images of lower resolution, characterised by, means for deriving signals from said storage means of reduced numbers per frame (35-37) compared with said high resolution signals and for applying said signals for reproduction by said monitor to enable the operator to monitor the image being created.
Claim 2
Dependent Claim
117 words
A video image creation system comprising; operator controlled means (28) for designating points on an image being created, processing means (34) responsive to said operator controlled means for producing high resolution signals representing picture points on said image, storage means (25) for storing said processed picture point signals to provide a representation of said image, said storage means having sufficient storage locations for full resolution, a monitor (27) capable of reproducing images of lower resolution, characterised by, means for deriving signals from said storage means of reduced numbers per frame (35-37) compared with said high resolution signals and for applying said signals for reproduction by said monitor to enable the operator to monitor the image being created.
Claim 3
Dependent Claim
39 words
A system as in claim 1 further characterised in that said means for deriving includes filter means (35) to reduce the number of signals per frame so that the image is seen on the monitor (27) at lower resolution.
Claim 4
Dependent Claim
42 words
A system as in claim 1 further characterised in that said means for deriving is arranged to derive signal from only part of the storage means to reproduce on the monitor (27) at high resolution only part of the image being created.
Claim 5
Dependent Claim
56 words
A video image creation system as in claim 1 further characterised by, means for selecting (36) the mode of operation of the deriving means so that in one mode the image being created is reproduced on the monitor (27) at low resolution and in the second mode part of the image is reproduced at higher resolution.
Claim 6
Dependent Claim
35 words
A video image creation system as in claim 1 further characterised by means for transferring all the signals from said storage means to a high resolution colour printer to allow the image to be reproduced.
Claim 7
Dependent Claim
162 words
A video image creation system comprising input means for designating the address of a picture point (28), selector means (27) for selecting colour component signals pertaining to said picture point and a number of adjacent picture points, frame store means (25) capable of storing an image of high resolution, processing means (34) for processing said received colour component signals from said selector means with stored picture point signals from said frame store means (25), display means (27), characterised by, said processor (34) being capable of operating at the rate which said colour component signals are received, second frame store means (36) for storing picture point signals representing an image with fewer picture points than that stored in said first frame store means, and means (35-37) for selectively transferring a number of said processed signals from said first frame store means to said second frame store means, said signals from said second frame store means forming the display on said display means (27).
Claim 8
Dependent Claim
162 words
A video image creation system comprising input means for designating the address of a picture point (28), selector means (27) for selecting colour component signals pertaining to said picture point and a number of adjacent picture points, frame store means (25) capable of storing an image of high resolution, processing means (34) for processing said received colour component signals from said selector means with stored picture point signals from said frame store means (25), display means (27), characterised by, said processor (34) being capable of operating at the rate which said colour component signals are received, second frame store means (36) for storing picture point signals representing an image with fewer picture points than that stored in said first frame store means, and means (35-37) for selectively transferring a number of said processed signals from said first frame store means to said second frame store means, said signals from said second frame store means forming the display on said display means (27).
Claim 9
Dependent Claim
78 words
A video image creation system as in claim 6 further characterised by, means (36) for notionally dividing said first frame store means into a plurality of areas, area selector means (37) for selecting one or more of said areas, said selection being dependant on designated addresses so that only areas containing designated picture points are selected and, said transfer means is conditioned to read all the picture points in the selected areas from said first frame store means.
Claim 10
Independent Claim
50 words
A system as in claims 6 and 7 further characterised in that said transferring means includes filter means (35) to reduce the number of signals transferred to said second frame store so that the image on the display is that of the whole of the created image at lower resolution.
Claim 11
Dependent Claim
45 words
A system as in claim 6 further characterised in that said transfer means includes means (36,37) for reading signals from only part of said first frame store to produce an image on the display (27) of part of the image being created at full resolution.
Claim 12
Independent Claim
77 words
A method of video image creation comprising; designating points on an image to be created, processing video signals to produce high resolution signals representing the image to be created, storing said signals in a frame store with a large number of storage location, characterised.by, selectively transferring signals from said frame store to a second frame store with a smaller number of storage locations, and displaying the image represented by the signals stored in the second frame store.
Claim 13
Independent Claim
77 words
A method of video image creation comprising; designating points on an image to be created, processing video signals to produce high resolution signals representing the image to be created, storing said signals in a frame store with a large number of storage location, characterised.by, selectively transferring signals from said frame store to a second frame store with a smaller number of storage locations, and displaying the image represented by the signals stored in the second frame store.
Claim 14
Dependent Claim
18 words
A method as in claim 10 further characterised in that said transferring is temporarily interleaved with said processing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.