Method and a device for selecting a participating device
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United States of America Patent
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Mar 21, 2017
Grant Date -
Jul 30, 2015
app pub date -
Jan 28, 2015
filing date -
Jan 29, 2014
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Abstract
A main screen renders watermarked content. A remote device captures a watermark and extracts a payload comprising a layout type, displays possible answers according to the layout type and receives a response from a user. The remote device captures a further watermark and extracts a payload comprising a correct answer, a ratio value and a token value. If the correct answer is equal to the answer received from the user, the remote device generates a comparison value, compares the comparison value and a ratio value extracted from the payload and, if the comparison between the comparison value and the ratio value indicates that remote device has been selected, displays a message intended to a user. The remote device can further generate a value from at least the token value and display this value as proof of being selected.
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