Integrating digital data with perceptible signals
AssigneeLucent Technologies Inc.
InventorsKatherine G. August, Gregory Alan Wright, Theodore Sizer, II
Life of this patent
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Abstract
A method for combining digital data with a perceptible program signal. The data stream is modulated onto an electromagnetic signal encoding the perceptible signal; the modulating employs a spread spectrum encoding of the data stream. The modulated program signal is transduced into perceptible form. A capture device receives the perceptible signal, and a decoder extracts the spread spectrum encoded data from the received signal. The method is particularly useful in encoding purchase information or watermarking information into the signal.
Claims22
A method, comprising:
- modulating a data stream onto a signal representing program material for human perception, the modulating using a spread spectrum encoding of the data stream;
- transducing the modulated signal into perceptible form;
- capturing and filtering the perceptible signal and transducing it into an electromagnetic form, the filtering removing most of the energy of human voices from the perceptible signal, and extracting a data stream from the filtered signal, the extracting using a spread spectrum decoding;
- initiating communications in response to the extracted data stream, wherein a destination and content of the communications are determined at least in part by the extracted data stream.
The method of claim 18, wherein:
- the programmed response includes hands-free initiation of a telephone call by the device.
A method comprising:
- modulating a data stream onto a signal representing program material for human perception, the modulating performed by a manufacturer of a sound recording of a program signal, the modulating using a spread spectrum encoding of said data stream, the data stream encoding data for initiating and completing a transaction between a human being perceiving said program signal and a vendor of a product described by said data stream;
- transducing the modulated signal into perceptible form;
- capturing the perceptible signal and transducing it into an electromagnetic form, and extracting said data stream from the perceptible signal, the extracting using a spread spectrum decoding;
- initiating communications in response to the extracted data stream, wherein a destination and content of the communications are determined at least in part by the extracted data stream.
Dependencies are inferred from the claim text.