发明名称 |
Method and a device for selecting a participating device |
摘要 |
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. |
申请公布号 |
US9602889(B2) |
申请公布日期 |
2017.03.21 |
申请号 |
US201514608160 |
申请日期 |
2015.01.28 |
申请人 |
Thomson Licensing |
发明人 |
Diehl Eric |
分类号 |
H04N21/81;H04N21/8358;H04N21/475;H04N21/478;H04N21/488;H04N21/4784;H04M1/725;H04H60/33;H04H20/31;G07F17/32;H04H60/58;H04H60/59;H04H60/65;H04H60/37 |
主分类号 |
H04N21/81 |
代理机构 |
Myers Wolin LLC |
代理人 |
Myers Wolin LLC |
主权项 |
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. |
地址 |
Issy-les-Moulineaux FR |