Video display arrangement including image processing circuitry for protecting display and method of protecting a video display
First Claim
1. Video imaging processing circuitry, comprising:
- a video formatter adapted to transmit formatted active image signals;
a display buffer having a video display memory for temporarily storing the active image signals and transferring the active image signals to a display;
a comparator for comparing one or more blocks of the video display memory for changing content over time and sending a static content warning signal to the video formatter when content in the one or more blocks remains static beyond a predetermined static content period; and
program storage including one or more programs adapted to cause the video formatter to transfer a changing content image to the display buffer after receiving the static content warning signal.
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Accused Products
Abstract
A video display arrangement includes a display, and a receiver. The receiver includes video imaging processing circuitry, the circuitry including a video formatter adapted to transmit formatted active image signals, a display buffer having a video display memory for temporarily storing the active image signals and transferring the active image signals to a display, a comparator for comparing one or more blocks of the video display memory for changing content over time and sending a static content warning signal to the video formatter when content in the one or more blocks remains static beyond a predetermined static content period, and program storage including one or more programs adapted to cause the video formatter to transfer a changing content image to the display buffer after receiving the static content warning signal.
22 Citations
32 Claims
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1. Video imaging processing circuitry, comprising:
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a video formatter adapted to transmit formatted active image signals;
a display buffer having a video display memory for temporarily storing the active image signals and transferring the active image signals to a display;
a comparator for comparing one or more blocks of the video display memory for changing content over time and sending a static content warning signal to the video formatter when content in the one or more blocks remains static beyond a predetermined static content period; and
program storage including one or more programs adapted to cause the video formatter to transfer a changing content image to the display buffer after receiving the static content warning signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A video display arrangement, comprising:
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a display;
a receiver, the receiver including video imaging processing circuitry, the circuitry including a video formatter adapted to transmit formatted active image signals, a display buffer having a video display memory for temporarily storing the active image signals and transferring the active image signals to a display, a comparator for comparing one or more blocks of the video display memory for changing content over time and sending a static content warning signal to the video formatter when content in the one or more blocks remains static beyond a predetermined static content period, and program storage including one or more programs adapted to cause the video formatter to transfer a changing content image to the display buffer after receiving the static content warning signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for initiating a content changing program, comprising:
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scanning a block of video display memory;
comparing the scanned block of video display memory with a previously scanned block of video display memory;
initiating a content changing program if there is insufficient change of content between compared scanned blocks of video display memory. - View Dependent Claims (28, 29, 30, 31, 32)
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Specification