Methods and apparatus for identifying a digital audio signal
First Claim
1. Apparatus for identifying a digital audio signal, comprising:
- an input which receives the digital audio signal, wherein the digital audio signal contains data from a broadcast or stored digital program signal; and
structure configured to (i) identify a program-identifying code in a compressed portion of the received digital audio signal, (ii) identify a program-identifying code in a decompressed or uncompressed received digital audio signal, (iii) identify a feature signature in a compressed portion of the received digital audio signal, and (iv) identify a feature signature in the decompressed or uncompressed received digital audio signal.
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Accused Products
Abstract
Method and apparatus for identifying broadcast digital audio signals include structure and/or function whereby the digital audio signal is provided to processing structure which is configured to (i) identify a program-identifying code in the received digital audio signal, (ii) identify a program-identifying code in a decompressed received digital audio signal, (iii) identify a feature signature in the received digital audio signal, and (iv) identify a feature signature in the decompressed received digital audio signal. Preferably, such processing structure is disposed in a dwelling or a monitoring site in an audience measurement system, such as the Nielsen TV ratings system.
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Citations
32 Claims
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1. Apparatus for identifying a digital audio signal, comprising:
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an input which receives the digital audio signal, wherein the digital audio signal contains data from a broadcast or stored digital program signal; and structure configured to (i) identify a program-identifying code in a compressed portion of the received digital audio signal, (ii) identify a program-identifying code in a decompressed or uncompressed received digital audio signal, (iii) identify a feature signature in a compressed portion of the received digital audio signal, and (iv) identify a feature signature in the decompressed or uncompressed received digital audio signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for identifying a digital audio signal, the method comprising:
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receiving the digital audio signal at an input, wherein the digital audio signal contains data from a broadcast or stored digital program signal; and configuring processing structure to (i) identify a program-identifying code in a compressed portion of the received digital audio signal, (ii) identify program-identifying code in a decompressed received digital audio signal, (iii) identify a feature signature in a compressed portion of the received digital audio signal, and (iv) identify a feature signature in the decompressed received digital audio signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer readable storage medium which causes one or more computers to carry out a method for identifying a digital audio signal, the computer readable storage medium causing the one or more computers to:
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input the digital audio signal, wherein the digital audio signal contains data from a broadcast or stored digital program signal; and configure processing structure to (i) identify a program-identifying code in a compressed portion of the received digital audio signal, (ii) identify a program-identifying code in a decompressed received digital audio signal, (iii) identify a feature signature in a compressed portion of the received digital audio signal, and (iv) identify a feature signature in the decompressed received digital audio signal. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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Specification