公开(公告)号：EP0662688B1

公开(公告)日：2001-05-09

申请号：EP95300060.1

申请日：1995-01-06

申请人： QUANTEL LIMITED

发明人： Kellar, Paul Roderick Noel ,  Cawley, Robin Alexander ,  Searby, Anthony David ,  Hinson, Neil Roy

IPC分类号： G11B27/031 ,  H04N5/262 ,  H04N5/278

CPC分类号： H04N19/99 ,  G06T9/001 ,  G11B27/034 ,  G11B2220/41 ,  H04N5/262 ,  H04N5/278

公开(公告)号：EP0581560A2

公开(公告)日：1994-02-02

申请号：EP93305893.5

申请日：1993-07-26

申请人： QUANTEL LIMITED

发明人： Searby, Anthony David ,  Cawley, Robin Alexander ,  Ingram, Martin Stewart

IPC分类号： G09G5/14

CPC分类号： G09G5/14

摘要： An electronic image processing system comprises an image store (11), a controller (14) and a monitor (13). The image store (11) stores data representing plural images as a multiplicity of pixels with the data for each image being stored as a one dimensional data list in a sequence of consecutive store addresses. The controller is provided to control the reading of data representing image portions from the store for display at respective display areas on the monitor (13) by identifying in the store data defining each of the image portions and by dividing the monitor into plural vertical zones (Y1, Y2). Each vertical zone is defined by a vertical start position and a vertical length (YLEN) and has one or more associated horizontal zones (X1, X2, X3) defined by a horizontal start position and a horizontal length (XLEN). Together the vertical and horizontal zones define the areas in which respective image portions are displayed.

摘要翻译： 电子图像处理系统包括图像存储器（11），控制器（14）和监视器（13）。 图像存储器（11）将表示多个图像的数据存储为多个像素，每个图像的数据作为一维数据列表存储在连续存储地址的序列中。 控制器被设置用于通过在存储定义每个图像部分的数据中识别并通过将监视器划分成多个垂直区域来控制从商店中读取表示图像部分的数据以显示在监视器（13）上的相应显示区域 Y1，Y2）。 每个垂直区由垂直起始位置和垂直长度（YLEN）定义，并具有由水平起始位置和水平长度（XLEN）定义的一个或多个相关水平区（X1，X2，X3）。 垂直和水平区一起定义了显示各个图像部分的区域。

公开(公告)号：EP0241261B1

公开(公告)日：1992-06-17

申请号：EP87303004.3

申请日：1987-04-07

申请人： QUANTEL LIMITED

发明人： Cawley, Robin Alexander

IPC分类号： G11B27/02

CPC分类号： G11B27/031

公开(公告)号：EP0629090A3

公开(公告)日：1995-01-25

申请号：EP94304200.2

申请日：1994-06-10

申请人： QUANTEL LIMITED

发明人： Cawley, Robin Alexander ,  Stapleton, Alan Lewis ,  Brown, Ian Michael

IPC分类号： H04N7/13

CPC分类号： H04N5/907 ,  H04N19/115 ,  H04N19/146 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/192 ,  H04N19/50 ,  H04N19/60

摘要： A video image processing system comprises an input cache store (3) for temporarily storing input video data, compressors (13, 15) for compressing image data from the input store and an output store (17) comprising multiple storage areas (19) of known fixed size for storing respective files of compressed data from the compressors (13, 15). The compressors are arranged to compress each image of the input video data to a given initial degree to produce respective data files. A processor (16) compares the number of bytes in each data file with the known size of one storage area (19) in the output store (17) to determine whether the data file will occupy a predetermined proportion of said storage area. In the event that the data file will not occupy said predetermined portion of said storage area, the processor causes one of the compressors to effect one or more repeat compressions to a different degree in order to produce a data file of a size which will occupy said predetermined proportion of said storage. The system thereby optimises the compression of data and the utilisation of storage in the storing of the compressed data.

公开(公告)号：EP0171829B1

公开(公告)日：1992-10-07

申请号：EP85201051.1

申请日：1985-07-02

申请人： QUANTEL LIMITED

发明人： Cawley, Robin Alexander ,  Pratt, Roderick Jermyn

IPC分类号： H04N9/75

CPC分类号： H04N9/75

公开(公告)号：EP0423930A1

公开(公告)日：1991-04-24

申请号：EP90309543.8

申请日：1990-08-31

申请人： QUANTEL LIMITED

发明人： Cawley, Robin Alexander ,  Kellar, Paul Roderick Noel ,  Searby, Anthony David

IPC分类号： G06T11/00

CPC分类号： G06T11/001

摘要： An electronic graphic system is suitable for use in modifying data defining an initial high resolution image. In the system data relating to a user defined low resolution control image controls the combining of other image data with data defining a low resolution representation of said initial image. In this way the system produces data representing a low resolution combined image which is continuously displayed on a display monitor. Once desired modifications have been achieved by the user to the image displayed on the display monitor, the low resolution control image data is converted into a high resolution representation thereof. The high resolution control image is used to control the combining of the said other image data with said initial high resolution image data to produce data defining a modified high resolution image. the said other image data may be a user defined color or another image for example.

摘要翻译： 电子图形系统适用于修改定义初始高分辨率图像的数据。 在与用户定义的低分辨率控制图像有关的系统数据中，控制其他图像数据与定义所述初始图像的低分辨率表示的数据的组合。 以这种方式，系统产生表示在显示监视器上连续显示的低分辨率组合图像的数据。 一旦期望用户对显示在显示器上显示的图像进行了修改，则将低分辨率控制图像数据转换成其高分辨率表示。 高分辨率控制图像用于控制所述其他图像数据与所述初始高分辨率图像数据的组合，以产生限定修改的高分辨率图像的数据。 所述其他图像数据可以是例如用户定义的颜色或另一图像。

公开(公告)号：EP0270259A3

公开(公告)日：1990-01-31

申请号：EP87309898.2

申请日：1987-11-09

申请人： QUANTEL LIMITED

发明人： Cawley, Robin Alexander ,  Hinson, Neil Roy ,  Long, Robert James ,  Stapleton, Alan Lewis

IPC分类号： H04N1/41 ,  H04N1/46

CPC分类号： H04N9/74 ,  G06F3/04845 ,  H04N1/46

摘要： A video signal processing system is described in which a characteristic of individual picture points is provided to an accuracy of m binary bits but conveyed by n bits, where n is less than m. The value of a lower order bit of the n bit signal is switched to cause said binary value to represent, for any one picture point, either a value above or a value below the original value. The new values are distributed without order among the picture points with a probability dependent upon the value of the (m-n) lowest order bits of the desired value.

公开(公告)号：EP0320166A1

公开(公告)日：1989-06-14

申请号：EP88311315.1

申请日：1988-11-30

申请人： QUANTEL LIMITED

发明人： Cawley, Robin Alexander

IPC分类号： G06F15/72

CPC分类号： G06T19/20 ,  G06T2219/2012 ,  G06T2219/2021

摘要： Electronic image processing for manipulating data representing a three dimensional object. The three dimensional position and colour of surface elements of an object are stored wherein the data for each surface element represents characteristics of a finite elemental area of the surface or skin of the object. The data may be displayed in two dimensions to provide real manipulation of the three dimensional data.

摘要翻译： 用于操纵表示三维物体的数据的电子图像处理。 存储对象的表面元素的三维位置和颜色，其中每个表面元素的数据表示对象的表面或皮肤的有限元素区域的特征。 数据可以以二维显示以提供三维数据的真实操纵。

公开(公告)号：EP0171829A2

公开(公告)日：1986-02-19

申请号：EP85201051.1

申请日：1985-07-02

申请人： QUANTEL LIMITED

发明人： Cawley, Robin Alexander ,  Pratt, Roderick Jermyn

IPC分类号： H04N9/75

CPC分类号： H04N9/75

摘要： A system for combining two or more video signal inputs using a chroma key like system. The keying is not done to one colours, like saturated blue, but to any colour within a range. One of the video signal inputs 1 is frozen and appears as a still picture on a display 6. Graphic means (16) are used to define an area of the picture and the maximum and minimum values of the colour components of the signals in that area are detected. Whenever a signal with components falling within the detected range is present in a switch (14) it operates to select a channel for output, this works to build up a composite picture.

公开(公告)号：EP1182868A3

公开(公告)日：2004-07-14

申请号：EP01305903.5

申请日：2001-07-09

申请人： Quantel Limited

发明人： Cawley, Robin Alexander

IPC分类号： H04N5/00

CPC分类号： G06F12/1408

摘要： A computer server system comprising a plurality of storage units which are arranged to be accessed for data retrieval purposes by a plurality of users, wherein user data is scattered in blocks distributed randomly and repeatedly across available storage.