Source detection apparatus and method for audience measurement
First Claim
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1. A system for determining an operating mode of a recording/playing device comprising:
- a first monitor configured to detect a first media signal output by a tuner configured to tune to a program signal;
a second monitor configured to detect a second media signal output by a recording/playing device configured to at least one of record and play a program;
a third monitor configured to detect a third media signal output by a receiver coupled to the recording/playing device;
a fourth monitor configured to detect a fourth signal that is a recording signal generated by the recording/playing device only during recording of the program to form a recorded program; and
a mode identifier coupled to the first, second, third, and fourth monitors and configured to identify an operating mode of the recording/playing device based on a comparison of the first and second media signals, a comparison of the second and third media signals, and a presence or absence of the fourth signal.
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Abstract
A system identifies which of first and second signal sources is supplying a program signal to a monitored receiver. The first and second signal sources and the monitored receiver are located in a household. The system extracts a reference program signature representative of an output of the monitored receiver and first and second source program signatures representative of an output of the first and second signal sources. The system identifies which of the first and second signal sources is a source of the program signal in response to the reference program signature and the first and second source program signatures.
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Citations
33 Claims
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1. A system for determining an operating mode of a recording/playing device comprising:
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a first monitor configured to detect a first media signal output by a tuner configured to tune to a program signal; a second monitor configured to detect a second media signal output by a recording/playing device configured to at least one of record and play a program; a third monitor configured to detect a third media signal output by a receiver coupled to the recording/playing device; a fourth monitor configured to detect a fourth signal that is a recording signal generated by the recording/playing device only during recording of the program to form a recorded program; and a mode identifier coupled to the first, second, third, and fourth monitors and configured to identify an operating mode of the recording/playing device based on a comparison of the first and second media signals, a comparison of the second and third media signals, and a presence or absence of the fourth signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 33)
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19. A method for determining an operating mode of a recording/playing device comprising:
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monitoring for a first media signal output by a tuner configured to tune to a program signal; monitoring for a second media signal output by a recording/playing device configured to at least one of record and play a program; monitoring for a third media signal output by a receiver coupled to the recording/playing device; monitoring for a fourth signal that is a recording signal generated by the recording/playing device only during recording of the program to form a recorded program; and identifying an operating mode of the recording/playing device based on a comparison of the first and second media signals, a comparison of the second and third media signals, and a presence or absence of the fourth signal. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification