초록 ▼

Systems and methods are provided for monitoring transmissions of media content (such as audio and audiovisual content) in order to obtain independent and objective data regarding the use of specific media content recordings or works within the transmissions. Processing and reporting of such data is

Systems and methods are provided for monitoring transmissions of media content (such as audio and audiovisual content) in order to obtain independent and objective data regarding the use of specific media content recordings or works within the transmissions. Processing and reporting of such data is provided in various ways to serve a variety of business needs. Methods for employing content identification technology to efficiently and automatically obtain reliable, accurate, and precise monitoring data are also disclosed. Various information products and services based on such monitoring systems are proposed.

대표청구항 ▼

What is claimed is: 1. A method for monitoring broadcast multi-media content, comprising: (a) receiving multimedia source content; (b) generating identification information related to said multimedia source content; (c) imperceptibly and repeatedly embedding an audio component of said multimedia so

What is claimed is: 1. A method for monitoring broadcast multi-media content, comprising: (a) receiving multimedia source content; (b) generating identification information related to said multimedia source content; (c) imperceptibly and repeatedly embedding an audio component of said multimedia source content with said identification information to produce an embedded multimedia content; (d) transferring said identification information to a central repository; (e) transmitting said embedded multimedia content through one or more broadcast networks; (f) receiving said embedded multimedia content after transmission through said one or more transmission channels; (g) processing said received multimedia content to extract identification information related thereto, wherein multiple copies of embedded information are extracted to estimate a duration of multimedia content embedded with identification information. 2. The method of claim 1, wherein a detectability metric is produced by assessing the success of said embedding and said detectability metric together with said identification information is transferred to said central repository. 3. The method of claim 2, wherein said detectability metric is used at monitoring sites to improve reliability of detection reports. 4. The method of claim 2, wherein said detectability metric and measured transmission channel characteristics are used at said monitoring sites to improve reliability of multimedia monitoring. 5. The method of claim 4, wherein said received transmission channel characteristics comprise at least one of a Signal-to-Noise-Ratio (SNR) and a dropped packet rate. 6. The method of claim 2, wherein said identification information is re-embeddable with modified embedding strength based on said detectability metric. 7. The method of claim 1, wherein extraction of said identification information is conducted in the presence of multiple transmission channel impairments. 8. The method of claim 1, wherein said embedding is repeated in temporal domain. 9. The method of claim 1, wherein said embedding is repeated at different frequencies. 10. The method of claim 1, wherein said embedding is repeated in both temporal and frequency domains. 11. The method of claim 1, wherein said multiple copies of embedded information are extracted to improve reliability of multimedia monitoring. 12. The method of claim 11, wherein said multiple copies are extracted from said embedded multimedia content received from a single transmission channel. 13. The method of claim 11, wherein said multiple copies are extracted from said embedded multimedia content received from a plurality of transmission channels. 14. The method of claim 11, wherein said multiple copies are extracted using a redundant network of receivers. 15. The method of claim 14, wherein said redundant receivers are deployed in separate geographical locations. 16. The method of claim 1, wherein said embedded multimedia content is transmitted over at least one terrestrial broadcast channel. 17. The method of claim 1, wherein said embedded multimedia content is transmitted over at least one Internet broadcast channel. 18. The method of claim 1, wherein said embedded multimedia content is transmitted over at least one cable broadcast channel. 19. The method of claim 1, wherein said embedded multimedia content is transmitted over at least one satellite broadcast channel. 20. The method of claim 1, wherein said extracted identification information is used to identify at least one of: (i) a broadcast advertisement content, (ii) a broadcast music content, (iii) a broadcast television or radio program content. 21. The method of claim 1, wherein: effectiveness of monitoring is enhanced by measuring received transmission channel characteristics to provide a measure of quality of at least one of a received transmission or a transmission channel. 22. The method of claim 21, wherein said received transmission channel characteristics comprise at least one of Signal-to-Noise-Ratio (SNR) and dropped packet rate. 23. The method of claim 1, wherein a type and an extent of impairments present in a transmission channel are identified based on quality of information extracted from said embedded multimedia content carried on said channel. 24. The method of claim 1, wherein multiple points of origin of a composite transmission of said embedded multimedia content are differentiated. 25. The method of claim 24, wherein said multiple points of origin comprise at least one of: (i) a local broadcast segment of a given networked television broadcast, (ii) a regional broadcast segment of a given networked television broadcast, (iii) a national broadcast segment of a given networked television broadcast, (iv) an interstitially inserted advertisement in an Internet stream. 26. The method of claim 1, wherein, prior to transmission of said embedded multimedia content, said embedded multimedia content is examined for a presence of a valid watermark. 27. The method of claim 26, wherein validity of an embedded watermark is ascertained by verifying identification information obtained from extraction of said watermark against information residing in a database. 28. A method for monitoring broadcast multi-media content, comprising: (a) receiving multimedia source content; (b generating identification information related to said multimedia source content; (c) imperceptibly and repeatedly embedding an audio component of said multimedia source content with said identification information to produce an embedded multimedia content; (d) transferring said identification information to a central repository; and (e) transmitting said embedded multimedia content through one or more broadcast networks, wherein copies of embedded information are extracted from said transmitted multimedia content, and spacing of said extracted copies of embedded information is used to estimate boundaries of back-to-back encoded multimedia clips. 29. A system for monitoring broadcast multi-media content, comprising: (a) a receiver configured to receive multimedia source content; (b) identification information generating means configured to generate identification information related to said multimedia source content; (c) an embedder configured to imperceptibly and repeatedly embed an audio component of said multimedia source content with said identification information to produce an embedded multimedia content; (d) transfer means configured to transfer said identification information to a central repository; (e) a transmitter configured to broadcast said embedded multimedia content through one or more broadcast networks; (f) reception means configured to receive said embedded multimedia content after transmission through said one or more broadcast networks; and (g) a processor configured to process said received broadcast multimedia content to extract identification information related thereto, wherein extraction of multiple copies of embedded information is used to estimate a duration of multimedia content embedded with identification information. 30. The multimedia monitoring system of claim 29, further comprising watermark assessment means configured to produce a detectability metric by assessing the success of said embedding and transfer means for transferring said detectability metric together with said identification information to a central repository. 31. The multimedia monitoring system of claim 30, wherein said detectability metric is used at monitoring sites to improve reliability of detection reports. 32. The multimedia monitoring system of claim 30, wherein said detectability metric and measured transmission channel characteristics are used at said monitoring sites to improve reliability of multimedia monitoring. 33. The multimedia monitoring system of claim 30, wherein said identification information is re-embeddable with a modified embedding strength based on said detectability metric. 34. The multimedia monitoring system of claim 29, wherein extraction of embedded information is conducted in the presence of multiple transmission channel impairments. 35. The multimedia monitoring system of claim 29, wherein said embedding is repeated in temporal domain. 36. The multimedia monitoring system of claim 29, wherein said embedding is repeated in different frequency domains. 37. The multimedia monitoring system of claim 29, wherein said embedding is repeated in both temporal and frequency domains. 38. The multimedia monitoring system of claim 29, wherein extraction of said multiple copies of embedded information is used to improve reliability of multimedia monitoring. 39. The multimedia monitoring system of claim 29, wherein said multiple copies are extracted from said embedded multimedia content received from a single transmission channel. 40. The multimedia monitoring system of claim 29, wherein said multiple copies are extracted from said embedded multimedia content received from a plurality of transmission channels. 41. The multimedia monitoring system of claim 29, wherein said multiple copies are extracted using a redundant network of receivers. 42. The multimedia monitoring system of claim 41, wherein said redundant receivers are deployed in separate geographical locations. 43. The multimedia monitoring system of claim 29, wherein at least one of said one or more broadcast networks is a terrestrial broadcast channel. 44. The multimedia monitoring system of claim 29, wherein at least one of said one or more broadcast networks is an Internet broadcast channel. 45. The multimedia monitoring system of claim 29, wherein at least one of said one or more broadcast networks is a cable broadcast channel. 46. The multimedia monitoring system of claim 29, wherein at least one of said one or more broadcast networks is satellite broadcast channel. 47. The multimedia monitoring system of claim 29, wherein said extracted identification information is used to identify at least one of: (i) a broadcast advertisement content, (ii) a broadcast music content, (iii) a broadcast television or radio program content. 48. The multimedia monitoring system of claim 29, wherein effectiveness of monitoring is enhanced by measuring received transmission channel characteristics to provide a measure of quality of at least one of a received transmission or a transmission channel. 49. The multimedia monitoring system of claim 48, wherein said channel characteristics comprise at least one of a Signal-to-Noise-Ratio (SNR) and a dropped packet rate. 50. The multimedia monitoring system of claim 29, wherein a type and an extent of impairments present in said one or more broadcast networks are identified based on quality of extracted information from said embedded multimedia content. 51. The multimedia monitoring system of claim 29, wherein multiple points of origin of a composite transmission of said embedded multimedia content are differentiated. 52. The multimedia monitoring system of claim 51, wherein said multiple points of origin comprise at least one of: (i) a local broadcast segment of a given networked television broadcast, (ii) a regional broadcast segment of a given networked television broadcast, (iii) a national broadcast segment of a given networked television broadcast, (iv) an interstitially inserted advertisement in an Internet stream. 53. The multimedia monitoring system of claim 29, further configured to examine said embedded multimedia content for presence of a valid watermark prior to the transmission of said embedded multimedia content. 54. The system in accordance with claim 53, further configured to ascertain validity of an embedded watermark by verifying identification information obtained from extraction of said watermark against information residing in a database. 55. A system for monitoring broadcast multi-media content, comprising: (a) a receiver configured to receive multimedia source content; (b) identification information generating means configured to generate identification information related to said multimedia source content; (c) an embedder configured to imperceptibly and repeatedly embed an audio component of said multimedia source content with said identification information to produce an embedded multimedia content; (d) transfer means configured to transfer said identification information to a central repository; (e) a transmitter configured to broadcast said embedded multimedia content through one or more broadcast networks; (f) reception means configured to receive said broadcast multimedia content; and (g) a processor configured to process said received broadcast multimedia content to extract identification information related thereto, wherein spacing of extracted copies of embedded information is used to estimate boundaries of back-to-back encoded multimedia clips.