Method and apparatus for generating, sensing and adjusting watermarks
First Claim
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1. A method for generating and adjusting a watermark in a watermarking system comprising a watermark generator and a watermark detector, the method comprising:
- the watermark generator emitting the watermark into an environment;
the watermark detector detecting the watermark;
the watermark detector transmitting a signal to the watermark generator; and
the watermark generator adjusting the generated watermark based on the signal received from the watermark detector.
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Abstract
A method and apparatus for generating and adjusting a watermark in a watermarking system comprising a watermark generator and a watermark detector includes the watermark generator emitting the watermark. The watermark detector detects the watermark. The watermark detector transmits a signal to the watermark generator. The watermark generator then adjusts the generated watermark based on the signal received from the watermark detector.
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Citations
35 Claims
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1. A method for generating and adjusting a watermark in a watermarking system comprising a watermark generator and a watermark detector, the method comprising:
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the watermark generator emitting the watermark into an environment;
the watermark detector detecting the watermark;
the watermark detector transmitting a signal to the watermark generator; and
the watermark generator adjusting the generated watermark based on the signal received from the watermark detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. In a watermarking system comprising a watermark generator generating a watermark into an environment and a watermark detector detecting the watermark, the watermark detector comprising:
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a transmitter;
a sensor; and
a processor in communication with the transmitter and the sensor, wherein an application runs on the processor, the sensor senses the watermark, the processor determines an adjustment for the watermark, and the processor transmits an adjustment signal to the watermark generator through the transmitter. - View Dependent Claims (27, 28, 29)
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30. In a watermarking system comprising a watermark generator generating a watermark into an environment and a watermark detector detecting the watermark, the watermark detector including an integrated circuit (IC) comprising:
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a transmitter;
a sensor; and
a processor in communication with the transmitter and the sensor, wherein an application runs on the processor, the sensor senses the watermark, the processor determines an adjustment for the watermark, and the processor transmits an adjustment signal to the watermark generator through the transmitter. - View Dependent Claims (31, 32, 33)
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34. A method for enabling the recording of sensed data in watermarking system comprising a watermark generator and a sensing device, the method comprising:
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programming the sensing device with a first enabling code;
the watermark generator emitting a watermark embedded with a second enabling code;
the sensing device sensing the watermark with the second enabling code;
the sensing device comparing the second enabling code to the first enabling code; and
the sensing device permitting recording if the first enabling code and the second enabling code are a match.
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35. In a watermarking system comprising a watermark generator generating a watermark embedded with an enabling code into an environment and a sensing device sensing the watermark embedded with the enabling code, the sensing device comprising:
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a sensor;
a memory; and
a processor, in communication with the sensor and the memory, wherein an application runs on the processor, the sensor senses the watermark embedded with the enabling code, the processor searches the memory for a matching enabling code, and the processor permits recording if the embedded enabling code matches the enabling code stored in the memory.
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Specification