Audience measurement systems and methods for digital television
First Claim
1. A rating system to monitor a digital television or radio receiver, the receiver to receive a broadcast channel comprising multiple programs, at least one of the programs being packed as a minor channel in the broadcast channel and each minor channel including an identification datum, the receiver to read a first identification datum from a first channel to which the receiver is tuned and to subsequently read a second identification datum from a second channel to which the receiver is tuned, the rating system comprising:
- a software agent to read the first identification datum from a packet label included in a first packet of a digital stream corresponding to the first channel and to time stamp the first identification datum at a first time at which the first identification datum is read, the software agent to read the second identification datum from a second packet label included in a second packet of a digital stream corresponding to the second channel and to time stamp the second identification datum at a second time at which the second identification datum is read;
a detector to detect an audio code embedded in an audio portion of at least one of the programs;
an extractor to extract a signature from one or more characteristic features of the audio portion of the at least one of the programs;
wherein at least one of the first and second channels is a minor channel and the system is to use the software agent and at least one of the detector and the extractor to record data to identify a first program tuned by the receiver.
4 Assignments
0 Petitions
Accused Products
Abstract
A television audience measurement system measures viewing of a television program viewed on digital television located in a statistically selected site by (i) retrieving an audience measurement data packet from a television set in order to identify the television program, (ii) detecting an audio code embedded in the television program in order to identify the television program, (iii) extracting an audio signature from the television program in order to identify the television program, (iv) identifying the television program through use of a software agent, and (v) selecting at least one of the retrieving means, the detecting means, the extracting means, and the software agent in order to identify the television program.
153 Citations
27 Claims
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1. A rating system to monitor a digital television or radio receiver, the receiver to receive a broadcast channel comprising multiple programs, at least one of the programs being packed as a minor channel in the broadcast channel and each minor channel including an identification datum, the receiver to read a first identification datum from a first channel to which the receiver is tuned and to subsequently read a second identification datum from a second channel to which the receiver is tuned, the rating system comprising:
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a software agent to read the first identification datum from a packet label included in a first packet of a digital stream corresponding to the first channel and to time stamp the first identification datum at a first time at which the first identification datum is read, the software agent to read the second identification datum from a second packet label included in a second packet of a digital stream corresponding to the second channel and to time stamp the second identification datum at a second time at which the second identification datum is read; a detector to detect an audio code embedded in an audio portion of at least one of the programs; an extractor to extract a signature from one or more characteristic features of the audio portion of the at least one of the programs; wherein at least one of the first and second channels is a minor channel and the system is to use the software agent and at least one of the detector and the extractor to record data to identify a first program tuned by the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of rating digital television or radio programs, the method comprising:
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receiving multiple programs packed as minor channels in a broadcast channel, each minor channel including a respective identification datum, reading, with a software agent, a first identification datum from a digital stream corresponding to a first channel tuned by a digital receiver; when the first identification datum is decodable, timestamping, with the software agent, the first identification datum at approximately a time at which the first identification datum is read; reading, with the software agent, a second identification datum from a digital stream corresponding to a second channel tuned by the receiver, at least one of the first and second channels being a minor channel; when the second identification datum is decodable, timestamping, with the software agent, the second identification datum at approximately a time at which the second identification datum is read; when at least one of the first or second identification data is not decodable, performing at least one of; detecting, with a detector, an audio code embedded in an audio portion of the digital stream; extracting, with an extractor, an audio signature from one or more characteristic features of the audio portion of the digital stream; and recording data from the software agent and at least one of the extractor and the detector to identify a first program tuned by the receiver. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification