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AssigneeArbitron Inc.
InventorsVictor A. Aijala, Gerald B. Cohen, James M. Jensen, Wendell D. Lynch, Juan C. Urbi
Estimating the term…
Methods and apparatus for encoding and decoding information in broadcast or recorded segment signals are described. In certain embodiments, an audience monitoring system encodes identification information in the audio signal portion of a broadcast or recorded segment using spread spectrum encoding. A personal monitoring device receives an acoustically reproduced version of the broadcast or recorded signal via a microphone, decodes the identification information from the audio signal portion despite significant ambient noise, and stores this information, automatically providing a diary for the audience member which is later uploaded to a centralized facility. A separate monitoring device decodes additional information from the broadcast signal, which is matched with the audience diary information at the central facility. This monitor may simultaneously send data to the centralized facility using a dial-up telephone line, and receive data from the centralized facility through a signal encoded using a spread spectrum technique and modulated with a broadcast signal from a third-party.
A method for detecting encoded information in broadcast or recorded audio signals, comprising the steps of:
A method for detecting encoded information in broadcast or recorded audio signals, comprising the steps of:
A method for determining a source or sources of at least one copyrighted work included in broadcast or recorded audio signals, comprising the steps of:
A method for determining a source or sources of at least one commercial advertisement in broadcast or recorded audio signals, comprising the steps of:
A method of encoding information in audio signals to be broadcast or recorded, comprising the steps of:
A method of encoding information in audio signals to be broadcast or recorded and detecting the encoded information therein, comprising the steps of:
An apparatus for detecting encoded information in broadcast or recorded audio signals, comprising:
An apparatus for detecting encoded information in broadcast or recorded audio signals, comprising:
An apparatus for determining a source or sources of at least one copyrighted work included in broadcast or recorded audio signals, comprising:
An apparatus for determining a source or sources of at least one commercial advertisement in broadcast or recorded audio signals, comprising:
An apparatus for encoding information in audio signals to be broadcast or recorded, comprising:
An apparatus for encoding information in audio signals to be broadcast or recorded and detecting the encoded information therein, comprising:
An encoded broadcast signal produced by:
An encoded recorded signal produced by:
A method of encoding information in audio signals to be broadcast or recorded, comprising the steps of:
An apparatus for encoding information in audio signals to be broadcast or recorded, comprising:
Dependencies are inferred from the claim text.