Method and a device for selecting a participating device

Patent metadata

Field	Value
Publication number	US-9602889-B2
Application number	US-201514608160-A
Country	US
Kind code	B2
Filing date	Jan 28, 2015
Priority date	Jan 29, 2014
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

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.

First claim

The invention claimed is:

1. A method in a device comprising a processor of selecting a participating device, the method comprising:
receiving an answer to a question;
capturing a watermark rendered by a main screen;
extracting a payload of the watermark, the payload comprising a correct answer to the question and a ratio value;
comparing the correct answer and the answer received;
when the correct answer is equal to the answer received, generating a random value;
comparing the random value and the ratio value extracted from the payload; and
when the comparison between the random value and the ratio value indicates that the device has been selected, displaying a message.

2. The method of claim 1 , further comprising, in case the comparison between the random value and the ratio value indicates that the device has been selected, generating a proof value, and wherein the displaying further comprises displaying the proof value.

3. The method of claim 2 , further comprising sending the proof value and at least one device identifier or user identifier to a server.

4. The method of claim 2 , wherein the proof value is based on a token value extracted from the payload.

5. The method of claim 4 , wherein the proof value is generated by applying a function to the token value and at least one of a present date and a present time.

6. The method of claim 1 , further comprising:
extracting a further payload from a further received watermark, the further payload comprising a layout type; and
displaying possible answers according to the layout type.

7. A device for participating in a selection of devices, the device comprising:
a display;
a processor to:
receive an answer to a question;
capture a watermark rendered by a main screen;
extract a payload of the watermark, the payload comprising a correct answer to the question and a ratio value;
compare the correct answer and the answer received;
when the correct answer is equal to the answer received, generate a random value;
compare the random value and the ratio value extracted from the payload; and
when the comparison between the random value and the ratio value indicates that the device has been selected, display a message on the display.

8. The device of claim 7 , wherein the processor to further send a proof value and at least one device identifier or user identifier to a server.

9. The device of claim 7 , wherein when the comparison between the random value and the ratio value indicates that the device has been selected, the processor is to further generate a proof value and to display the proof value on the display.

10. The device of claim 9 , wherein the proof value is based on a token value extracted from the payload.

11. The device of claim 10 , wherein the processor to further generate the proof value by applying a function to the token value and at least one of a present date and a present time.

12. The device of claim 7 , wherein the processor to further:
extract a further payload from a further received watermark, the further payload comprising a layout type; and
display possible answers according to the layout type.

13. A non-transitory computer-readable storage medium comprising instructions that, when executed by a processor, cause the processor to:
receive an answer to a question;
capture a watermark rendered by a main screen;
extract a payload of the watermark, the payload comprising a correct answer to the question and a ratio value;
compare the correct answer and the answer received;
when the correct answer is equal to the answer received, generate a random value;
compare the random value and the ratio value extracted from the payload; and
when the comparison between the random value and the ratio value indicates that a participating device has been selected, display a message on a display of the participating device.

Assignees

• Thomas Licensing
• Thomson Licensing

Inventors

• Diehl Eric

Classifications

• H04H60/58

  of audio {(determination or detection of speech characteristics in general G10L25/00; speech recognition in general G10L15/00)} · CPC title

• H04N21/4784

  receiving rewards · CPC title

• H04N21/4758

  for providing answers, e.g. voting · CPC title

• H04H2201/50

  characterised by the use of watermarks · CPC title

• H04N21/8186

  specially adapted to be executed by a peripheral of the client device, e.g. by a reprogrammable remote control · CPC title