10015534 cites 2 patents.

A system to facilitate measuring consumer use by using codes embedded in any raw audio or video content. The original code is then layered with additional codes either by modifying the original code or by adding additional codes in between the original code. The system recognizes a code embedded into an audio and/or video signal. This can help track consumer use and viewing.

Title
Providing hidden codes within already encoded sound tracks of media and content
Application Number
15/413186
Publication Number
10015534 (B1)
Application Date
January 23, 2017
Publication Date
July 3, 2018
Inventor
Lee S Weinblatt
Teaneck
NJ, US
Agent
Goldberg Cohen
IPC
H04N 21/258
H04N 21/466
H04N 21/25
H04H 60/32
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