SET-TOP-BOX WITH INTEGRATED ENCODER/DECODER FOR AUDIENCE MEASUREMENT

• US 20110224992A1
• Filed: 03/15/2010
• Published: 09/15/2011
• Est. Priority Date: 03/15/2010
• Status: Active Grant

• Current Assignee: The Nielsen Company LLC (MOOD Media Corporation)
• Original Assignee: The Nielsen Company LLC (MOOD Media Corporation)
• Inventors: COWLING, TODD, ARSHI, TAYMOOR, STAVRAPOLOUS, JOHN, CHAOUI, LUC, BEHBEHANI, TAHER
• Granted Patent: US 8,768,713 B2
• Time in Patent Office: Days
• US Class Current: 704/500
• CPC Class Codes: G10L 19/018 Audio watermarking, i.e. embedding inaudible data in the audio signal
• CPC Class Codes: H04H 60/31 Arrangements for monitoring the use made of the broadcast services
• CPC Class Codes: H04H 60/58 of audio determination or detection of speech characteristics in general G10L25/00; speech recognition in general G10L15/00

Abstract

Systems and methods are disclosed for encoding audio in a set-top box that is invoked by a user when listening to a broadcast audio signal from a radio, TV, streaming or other audio device. A detection and identification system comprising an audio encoder is integrated in a set-top box, where detection and identification of media is realized. The encoding automatically identifies characteristics of the media (e.g., the source of a particular piece of material) by embedding an inaudible code within the content. This code contains information about the content that can be decoded by a machine, but is not detectable by human hearing. The embedded code may be used to provide programming information to the view or audience measurement date to the provider.

Claims

1. A method for encoding media in a set-top-box, comprising the steps of:

receiving media at the set-top-box input;

processing the received media to produce an audio component; and

encoding the audio component with a message comprising one or more symbols, each of said symbols comprising a plurality of substantially single-frequency code components, and wherein the message is masked within the audio component.

2. The method of claim 1, wherein the audio component comprises one of PCM digital code or decompressed audio.

3. The method of claim 1, wherein the step of processing the received media comprises the steps of separating the audio component into frequency components.

4. The method of claim 3, further comprising evaluating the frequency components to determine masking ability, and masking the message in the audio component based on the evaluation.

5. The method of claim 1, wherein the media comprises a video component.

6. The method of claim 1, further comprising the step of capturing the encoded audio in the set-top-box.

7. The method of claim 6, wherein the encoded audio is captured via a transducer.

8. The method of claim 6, wherein the captured encoded audio is decoded to determine a characteristic of the media.

9. A system for encoding media, comprising:

a set-top-box comprising an input, where the input is configured to receive media;

a processor, operatively coupled to the input, for processing the received media to produce an audio component; and

an encoder, operatively coupled to the processor, for coding the audio component with a message comprising one or more symbols, each of said symbols comprising a plurality of substantially single-frequency code components, and wherein the message is masked within the audio component.

10. The system of claim 9, wherein the audio component comprises one of PCM digital code or decompressed audio.

11. The system of claim 9, wherein the processor separates the audio component into frequency components.

12. The system of claim 11, wherein the encoder evaluates the frequency components to determine masking ability, and masking the message in the audio component based on the evaluation.

13. The system of claim 9, wherein the media comprises a video component.

14. The system of claim 9, further comprising a transducer for capturing the encoded audio in the set-top-box.

15. The system of claim 14, further comprising a decoder that decodes the captured encoded audio to determine a characteristic of the media.

16. The system of claim 15, wherein the decoder and transducer are housed within the set-top box.

17. The system of claim 15, wherein the decoder and transducer are housed in a portable device having a data interface for communicating research data generated from the decoded audio.

18. The system of claim 17, wherein the data interface is a USB interface.