METHOD AND DEVICE FOR PROVIDING CONTROLLED ACCESS VIDEO SIGNALS WITHOUT PROVIDING A SIGNAL IN THE CLEAR
A LCD display device for receiving encrypted video data and for decrypting the video data such that a signal is not provided "in the clear" before receipt by the display device. The video data is encrypted within a row of video and decrypted at the display. Alternatively the rows are encry...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A LCD display device for receiving encrypted video data and for decrypting the video data such that a signal is not provided "in the clear" before receipt by the display device. The video data is encrypted within a row of video and decrypted at the display. Alternatively the rows are encrypted by altering the time sequence of display of each row. |
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