Media program identification method and apparatus based on...

Details Media program identification method and apparatus based on... Media program identification method and apparatus based on...

2011-06-07

2011-06-07

Lerner, Martin (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C375S140000, C375S269000, C380S252000, C380S268000, C713S176000

Reexamination Certificate

active

07957977

ABSTRACT:
The invention provides a method for obtaining related information about a media program containing an audio signal, comprising: embedding an audio watermark containing identification information of the media program into the audio signal; transmitting the media program; recording a portion of the audio signal ; extracting the audio watermark from the recorded portion to obtain the identification information and providing the identification information to a server; and providing the user with the related information according to the identification information from the server, wherein the embedding comprises: performing pre-processing on the identification information to obtain pre-processed identification information; determining an echo delay array; modulating amplitudes of the plurality of pairs of antipodal echoes with the pre-processed identification information; repeating the amplitude-modulated plurality of pairs of antipodal echoes; and embedding the repeated and amplitude-modulated plurality of pairs of antipodal echoes into the audio signal along the echo delay array.

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