Device and method for realizing transparency in an on screen display
First Claim
Patent Images
1. A transparency realizing device in an On Screen Display (OSD) comprising:
- a first buffer for temporarily storing YUV image data for displaying a background image;
a second buffer for temporarily storing OSD image data;
a multiplexer for receiving output data of the first and second buffers and selectively outputting one of the YUV image data and the OSD image data according to a selection control signal;
a register for storing identification data of a background color selected to be transparent in the OSD image data; and
a comparator for receiving the transparency-selected background color identification color, identifying the background color data in the OSD image data based on the identification data, and outputting the selection control signal to the multiplexer for outputting the YUV image data instead of the background color data.
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Abstract
Disclosed is a device and method for realizing transparency. When a user requests a transparent function, a specific background color that is selected to be transparent by the user is identified in an OSD transparent mode and an image with YUV image data inserted instead of the OSD background color data is displayed upon receipt of the OSD background color data. In a YUV transparent mode, a specific background color that is selected to be transparent by the user is identified and an image with OSD image data inserted instead of the YUV background color data is displayed upon receipt of the YUV background color data.
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Citations
12 Claims
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1. A transparency realizing device in an On Screen Display (OSD) comprising:
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a first buffer for temporarily storing YUV image data for displaying a background image;
a second buffer for temporarily storing OSD image data;
a multiplexer for receiving output data of the first and second buffers and selectively outputting one of the YUV image data and the OSD image data according to a selection control signal;
a register for storing identification data of a background color selected to be transparent in the OSD image data; and
a comparator for receiving the transparency-selected background color identification color, identifying the background color data in the OSD image data based on the identification data, and outputting the selection control signal to the multiplexer for outputting the YUV image data instead of the background color data.
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2. A transparency realizing device in an On Screen Display (OSD) comprising:
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a first buffer for temporarily storing YUV image data for displaying a background image;
a second buffer for temporarily storing OSD image data;
a register for storing identification data of background colors selected to be transparent in the OSD and YUV image data;
a first comparator for identifying the background color data in the YUV image data in a YUV transparent mode and outputting first logical data indicating input of the transparency-selected YUV background color;
a second comparator for identifying the background color data in the OSD image data in an OSD transparent mode and outputting second logical data indicating input of the transparency-selected OSD background color;
a first logical device for AND-operating the first logical data received from the first comparator and control data indicating implementation of a transparent function received from the register, inverting the AND-operated value, and outputting the inverted value;
a second logical device for AND-operating the second logical data received from the second comparator and the control data indicating implementation of a transparent function received from the register, and outputting the AND-operated value; and
a multiplexer for receiving the output data of the first and second logical devices and selectively outputting one of the YUV image data and the OSD image data from the first or second buffer according to an OSD/YUV selection control signal stored in the register. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A transparency realizing method in an On Screen Display (OSD) comprising the steps of:
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setting a transparent mode if a user selects the transparent mode;
recognizing a transparency-selected background color selected by the user from OSD image data in the transparent mode;
updating a register value with identification data of the transparency-selected OSD background color; and
removing the background color data corresponding to the updated register value from the OSD image data. - View Dependent Claims (9)
identifying the background color data corresponding to the updated register value in the OSD image data; and
removing the background color data by outputting YUV image data for displaying a background instead of the OSD background color data.
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10. A transparency realizing method in an On Screen Display (OSD) comprising the steps of:
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identifying a specific background color that is selected to be transparent by a user in an OSD transparent mode when the user selects a transparent function and displaying an image with YUV image data inserted instead of OSD background color data upon receipt of the OSD background color data; and
identifying a specific background color selected to be transparent by the user in a YUV transparent mode and displaying an image with OSD image data inserted instead of YUV background color data upon receipt of the YUV background color data.
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11. A transparency realizing method in an On Screen Display (OSD) comprising the steps of:
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setting a transparent mode upon a user selection of a transparent function;
identifying a specific background color selected to be transparent by the user in YUV image data when a YUV transparent function is selected in the transparent mode;
updating a register value with identification data of the transparency-selected YUV background color; and
displaying an image with OSD image data inserted instead of the YUV background color upon receipt of the YUV background color data corresponding to the updated register value.
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12. A transparency realizing method in an On Screen Display (OSD) comprising the steps of:
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setting a transparent mode upon a user selection of a transparent function;
identifying a specific background color selected to be transparent by the user in YUV image data when an OSD transparent function is selected in the transparent mode;
updating a register value with identification data of the transparency-selected OSD background color; and
displaying an image with YUV image data inserted instead of the OSD background color upon receipt of the OSD background color data corresponding to the updated register value.
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Specification