Television image processing apparatus
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorZenichiro Hara
Life of this patent
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Abstract
A television image processing system is selectively connectable with a plurality of displays which are different in display format. The television image processing system includes a command outputting section for outputting a command representative of the display format of a display connected with the television image processing system. It further includes a sampling section for receiving an analog color TV signal and for outputting a digital image data for each of color components. Finally it includes and at least one data array changing section for receiving the image data and for forming an array of image data compatible with the display format specified by the command, the array of image data being supplied to the display connected with the television image processing system.
Claims11
A television image processing system selectively connected to one of a plurality of types of displays, each type of display having at least one of a plurality of different resolution formats determined by the number of light emitting elements used therein and also by the arrangement of colors used therein, the light emitting elements being grouped into a plurality of blocks in the horizontal scan direction, the television image processing system assigning and outputting image data within one horizontal period to the respective blocks in said one display, and the television image processing system comprising:
- (a) command output means, responsive to an external resolution format selection signal, for outputting a command signal representative of a selected one of the plurality of different resolution formats of the connected display as a function of the external resolution format selection signal;
- (b) sampling means for receiving an analog color TV signal and for outputting digital image data for each of color components R, G and B;
- and
- (c) at least one data array changing means, each for receiving the digital image data from said sampling means in parallel, each for changing a display array of said digital image data to a display array of data compatible with the display format selected by said command output means, the changed array of digital image data being then outputted to respective display blocks in said connected display, one corresponding to each of the at least one data array changing means, wherein each data array changing means includes a temporal storage device for digital image data to accommodate data transfer speed changes based upon selected resolution format,
- each data array changing means, when forming an array of lower resolution format data, forms the array of lower resolution data directly by selectively filtering an array of higher resolution format data.
A large-scale television display image processor apparatus for providing appropriate resolution display data to at least a selected one of a plurality of separately connectable displays, said large-scale television display image processor apparatus supporting at least a first resolution format and a second resolution format, comprising:
- a digitizer for digitizing an analog color television signal into digital image data;
- digital array forming means, responsive to the digitizer, for generating a basic digital image array having the first resolution format;
- a controller, responsive to an external resolution format selection signal, indicating a selected display resolution format, and to the digital array forming means, for supplying the selected display with a corresponding resolution digital array having an appropriate resolution format based upon the basic digital image array and the external resolution format selection signal;
- the corresponding resolution digital array being one of at least the first and second resolution formats, first resolution format being of greater resolution than the second resolution format;
- and when the corresponding resolution digital array is to be of lower resolution than the first resolution format:
- the controller produces the corresponding resolution digital array directly by selectively filtering data out of the basic digital image array until a desired resolution is obtained.
In a large-scale television display image processor, a method for providing appropriate resolution display data to at least a selected one of a plurality of separately connectable displays, said large-scale television display image processor apparatus supporting at least a first resolution and a second resolution, comprising the steps of:
- (a) digitizing an analog color television signal into digital image data;
- (b) generating, from the digital image data, a basic digital image array having the first resolution format;
- (c) receiving an external resolution format selection signal;
- (d) supplying the selected display with a corresponding resolution digital array, as a function of the basic digital image array and the external resolution format selection signal;
- the first resolution format being of greater resolution than the second resolution format;
- and when the corresponding resolution digital array is to be of lower resolution than the first resolution format:
- the step (d) produces the corresponding resolution digital array directly by selectively filtering data out of the basic digital image array until a desired resolution is obtained.
Dependencies are inferred from the claim text.