Source detection apparatus and method for audience measurement
First Claim
1. A system for determining an operating mode of a recording/playing device comprising a mode identifier including a comparator to process data indicative of:
- a first media signal output by a tuner to tune to a program signal;
a second media signal output by a recording/playing device to at least one of record or play a program;
a third media signal output by a receiver coupled to the recording/playing device; and
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,wherein the mode identifier is 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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Accused Products
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.
94 Citations
35 Claims
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1. A system for determining an operating mode of a recording/playing device comprising a mode identifier including a comparator to process data indicative of:
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a first media signal output by a tuner to tune to a program signal; a second media signal output by a recording/playing device to at least one of record or play a program; a third media signal output by a receiver coupled to the recording/playing device; and 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, wherein the mode identifier is 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, 19, 20)
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21. A method for determining an operating mode of a recording/playing device comprising:
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comparing a first media signal output by a tuner to tune to a program signal with a second media signal output by a recording/playing device to at least one of record or play a program; comparing the second media signal with a third media signal output by a receiver coupled to the recording/playing device; determining the presence or absence of 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 the comparison of the first and second media signals, the comparison of the second and third media signals, and the determination of the presence or absence of the fourth signal. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification