Method for identifying improper transmission of images in an image-processing device and a corresponding image-processing device
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United States of America Patent
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Jul 21, 2015
Grant Date -
May 9, 2013
app pub date -
Nov 5, 2012
filing date -
Nov 4, 2011
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Abstract
The invention pertains to a method for operating an image-processing device, in which an image signal is digitally transmitted between a transmitter and at least one receiver, and in which the image signal comprises a timed sequence of images. An alternating signal which alternates at a signal alternation frequency is superimposed on the image content of the images before they are transmitted, and the signal alternation frequency is greater than or equal to the perception frequency resolvable by the human eye. The invention also pertains to an image-processing device.
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