METHODS AND APPARATUS TO MEASURE EXPOSURE TO STREAMING MEDIA

• US 20130311780A1
• Filed: 03/11/2013
• Published: 11/21/2013
• Est. Priority Date: 05/15/2012
• Status: Active Grant

• Current Assignee: The Nielsen Company LLC (MOOD Media Corporation)
• Original Assignee: The Nielsen Company LLC (MOOD Media Corporation)
• Inventors: Besehanic, Jan
• Granted Patent: US 9,197,421 B2
• Time in Patent Office: Days
• US Class Current: 713/176
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/062 for key distribution, e.g. centrally by trusted party cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819
• CPC Class Codes: H04L 9/0869 involving random numbers or seeds
• CPC Class Codes: H04L 9/0894 Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
• CPC Class Codes: H04L 9/12 Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04N 21/234309 by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo conversion of standards in analog television systems H04N7/01
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

Abstract

Methods and apparatus to measure exposure to streaming media are disclosed herein. An example method includes identifying metadata from media. The media is converted into converted media having a streaming format. The converted media is encrypted using an encryption key. A manifest is created in association with the converted media, the manifest identifying a first location of the encrypted media and a second location of a decryption key.

Claims

1. A method of measuring exposure to streaming media, the method comprising:

extracting a watermark from media;

converting the media into converted media having a streaming format;

encrypting the converted media using an encryption key, the encryption key based on the watermark; and

creating a manifest in association with the converted media, the manifest identifying a first location of the encrypted media and a second location of a decryption key.

2. The method as described in claim 1, further comprising transmitting the manifest to a requesting device.

3. The method as described in claim 2, further comprising transmitting the encrypted converted media to the requesting device.

4. The method as described in claim 1, wherein the media is obtained from a media provider in response to a request from a requesting device.

5. The method as described in claim 1, wherein the streaming format is a HyperText Transfer Protocol (HTTP) Live Streaming (HLS) format.

6. The method as described in claim 1, wherein the watermark is an audio watermark.

7. The method as described in claim 1, wherein the watermark is a video watermark.

8. An apparatus to measure exposure to streaming media, the apparatus comprising:

a media identifier to generate metadata identifying media based on a watermark extracted from the media;

a media encrypter to encrypt the media using an encryption key; and

a manifest generator to generate a manifest identifying a first location of the encrypted media and a second location of the decryption key

9. The apparatus as described in claim 8, further comprising:

a transcoder to transcode the media into a streaming format;

an encryption key synchronizer to receive an encryption key and a location of a decryption key;

10. The apparatus as described in claim 9, wherein the streaming format is a HyperText Transfer Protocol (HTTP) Live Streaming (HLS) format.

11. The apparatus as described in claim 9, further comprising a media transmitter to transmit the manifest and the encrypted media to a requesting device.

12. The apparatus as described in claim 9, further comprising an encryption key store to store the encryption key and an address of the second location of the decryption key in association with the media.

13. A machine-readable storage medium comprising instructions which, when executed, cause a machine to at least:

extract a watermark from media;

convert the media into converted media having a streaming format;

encrypt the converted media using an encryption key, the encryption key based on the watermark; and

create a manifest in association with the converted media, the manifest identifying a first location of the encrypted media and a second location of a decryption key.

14. The machine-readable medium as described in claim 13, wherein the instructions, when executed, cause the machine to transmit the manifest to a requesting device.

15. The machine-readable medium as described in claim 14, wherein the instructions, when executed, cause the machine to transmit the encrypted converted media to the requesting device.

16. The machine-readable medium as described in claim 13, wherein the media is obtained from a media provider in response to a request from a requesting device.

17. The machine-readable medium as described in claim 13, wherein the media comprises live media.

18. The machine-readable medium as described in claim 13, wherein the media is stored media.

19. The machine-readable medium as described in claim 13, wherein the streaming format is a HyperText Transfer Protocol (HTTP) Live Streaming (HLS) format.

20. The machine-readable medium as described in claim 13, wherein the watermark is an audio watermark.