Workstation for displaying dynamic image with real-time special effects
First Claim
1. A dynamic-image displaying workstation, comprising:
- a display device for displaying an image;
a video signal processing circuit for outputting dynamic-image data representing a first image, said first image being a dynamic image corresponding to a video signal;
a first dual port memory for receiving and storing the dynamic-image data outputted from the video signal processing circuit, said dynamic-image data representing pixels of said first image to be displayed by the display device;
data outputting circuitry for outputting data representing pixels of a second image to be displayed by the display device, bits of data respectively corresponding to each one of said pixels of said second image and bits of data respectively corresponding to each one of said pixels of said first image;
a second dual port memory for storing said data representing pixels of said second image to be displayed by the display device;
a third dual port memory for storing said bits of data respectively corresponding to each one of said pixels of said second image, each one of said bits of data indicating whether the corresponding pixel lies within a window area, the window area being an area of a window which is not covered by any other windows;
a fourth dual port memory for storing said bits of data respectively corresponding to each one of said pixels of said first image, each one of said bits of data indicating whether the corresponding pixel lies within a dynamic-image display effective area corresponding to the dynamic image represented by the dynamic-image data stored in the first dual port memory;
processing circuitry for running an operating system and a window-manager program to control the video signal processing circuit and the first, second, third and fourth dual port memories; and
a data selector for receiving data read from the first dual port memory at a first input terminal thereof, for receiving data read from the second dual port memory at a second input terminal thereof, for receiving a bit of data read from the third and fourth dual port memories, for selecting the data received at the first input terminal thereof for display if the bit of data read from the third dual port memory indicates that the pixel corresponding thereto lies within the window area and the bit of data read from the fourth dual port memory indicates that the pixel corresponding thereto lies within the dynamic-image display effective area, for selecting the data received at the second input terminal thereof for display if the bit of data read from the third dual port memory indicates that the pixel corresponding thereto does not lie within the window area or if the bit of data read from the fourth dual port memory indicates that the pixel corresponding thereto does not lie within the dynamic-image display effective area, and for outputting the selected data to the display device.
1 Assignment
0 Petitions
Accused Products
Abstract
A dynamic-image displaying workstation provided with a display device for displaying an image, a video signal processing circuit for outputting dynamic-image data representing a dynamic image corresponding to a video signal, a first dual port memory for receiving and storing the dynamic-image data outputted from the video signal processing circuit, a second dual port memory for storing data representing pixels of an image to be displayed by the display device, and a third dual port memory for storing data representing a window area. The window area is an area of a window, to which the dynamic-image belongs, and is not covered by any other windows. The workstation is further provided with a fourth dual port memory for storing data representing a dynamic-image display effective area corresponding to the dynamic image represented by the dynamic-image stored in the first dual port memory, a data selector for receiving data read from the first dual port memory at a first input terminal thereof, and data read from the second dual port memory at a second input terminal thereof, for selecting one of the third and fourth dual port memories and receiving data read from the selected dual port memory at a third input terminal thereof, for selecting the data received at the first input terminal thereof if the data read from the third dual port memory is the data representing the window area, and the data read from the third dual port memory is the data representing the dynamic-image display effective area, for selecting the data received at the second input terminal thereof and for outputting a signal representing the selected data to the display device.
63 Citations
19 Claims
-
1. A dynamic-image displaying workstation, comprising:
-
a display device for displaying an image; a video signal processing circuit for outputting dynamic-image data representing a first image, said first image being a dynamic image corresponding to a video signal; a first dual port memory for receiving and storing the dynamic-image data outputted from the video signal processing circuit, said dynamic-image data representing pixels of said first image to be displayed by the display device; data outputting circuitry for outputting data representing pixels of a second image to be displayed by the display device, bits of data respectively corresponding to each one of said pixels of said second image and bits of data respectively corresponding to each one of said pixels of said first image; a second dual port memory for storing said data representing pixels of said second image to be displayed by the display device; a third dual port memory for storing said bits of data respectively corresponding to each one of said pixels of said second image, each one of said bits of data indicating whether the corresponding pixel lies within a window area, the window area being an area of a window which is not covered by any other windows; a fourth dual port memory for storing said bits of data respectively corresponding to each one of said pixels of said first image, each one of said bits of data indicating whether the corresponding pixel lies within a dynamic-image display effective area corresponding to the dynamic image represented by the dynamic-image data stored in the first dual port memory; processing circuitry for running an operating system and a window-manager program to control the video signal processing circuit and the first, second, third and fourth dual port memories; and a data selector for receiving data read from the first dual port memory at a first input terminal thereof, for receiving data read from the second dual port memory at a second input terminal thereof, for receiving a bit of data read from the third and fourth dual port memories, for selecting the data received at the first input terminal thereof for display if the bit of data read from the third dual port memory indicates that the pixel corresponding thereto lies within the window area and the bit of data read from the fourth dual port memory indicates that the pixel corresponding thereto lies within the dynamic-image display effective area, for selecting the data received at the second input terminal thereof for display if the bit of data read from the third dual port memory indicates that the pixel corresponding thereto does not lie within the window area or if the bit of data read from the fourth dual port memory indicates that the pixel corresponding thereto does not lie within the dynamic-image display effective area, and for outputting the selected data to the display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19)
-
-
14. A dynamic-image displaying workstation, comprising:
-
a display device for displaying an image; a video signal processing circuit for outputting dynamic-image data representing a dynamic image corresponding to a video signal; a first dual port memory for receiving and storing the dynamic-image data outputted from the video signal processing circuit; a second dual port memory for storing data representing pixels of an image to be displayed by the display device; a third dual port memory for storing bits of data respectively corresponding to each one of said pixels, each one of said bits of data indicating whether the corresponding pixel lies within a window area, the window area being an area of a window which is not covered by any other windows; a fourth dual port memory for storing bits of data respectively corresponding to each one of said pixels, each one of said bits of data indicating whether the corresponding pixel lies within a dynamic image display effective area corresponding to the dynamic-image represented by the dynamic-image stored in the first dual port memory; and a data selector for receiving data read from the first dual port memory at a first input terminal thereof, for receiving data read from the second dual port memory at a second input terminal thereof, for receiving a bit of data read from the third and fourth dual port memories, for selecting the data received at the first input terminal thereof for display if the bit of data read from the third dual port memory indicates that the pixel corresponding thereto lies within the window area and the bit of data read from the fourth dual port memory indicates that the pixel corresponding thereto lies within the dynamic image display effective area, for selecting the data received at the second input terminal thereof for display if the bit of data read from the third dual port memory indicates that the pixel corresponding thereto does not lie within the window area or if the bit of data read from the fourth dual port memory indicates that the pixel corresponding thereto does not lie within the dynamic-image display effective area, and for outputting the selected data to the display device. - View Dependent Claims (15)
-
Specification