Method and apparatus for recording sensor data
First Claim
1. A method for recording sensor data with a video signal to protect the sensor data, the sensor data being contained in signals from one or more sensors, the method comprising the steps of:
- a) encrypting the signals from the one or more sensors;
b) combining the video signal and the encrypted signals to produce an output signal; and
c) recording the output signal on a recording medium.
11 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for recording sensor data. The analog and digital signals containing the sensor data are accompanied by a concurrent analog video signal. The analog signals are converted to digital form and highly redundant signals are compressed according to conventional compression techniques. The resulting compressed and uncompressed signals are encrypted and stored on a removable hard disk. The data stored on the removable hard disk can later be played back to reconstruct the original signals while assuring that the played back signals are correct reconstructions of the original signals.
360 Citations
24 Claims
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1. A method for recording sensor data with a video signal to protect the sensor data, the sensor data being contained in signals from one or more sensors, the method comprising the steps of:
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a) encrypting the signals from the one or more sensors; b) combining the video signal and the encrypted signals to produce an output signal; and c) recording the output signal on a recording medium. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for retrieving sensor data originally produced by one or more sensors, the sensor data being encrypted with a video signal to produce a recorded signal that protects the sensor data and being contained in signals from one or more sensors, the method comprising the steps of:
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a) playing back the recorded signal to produce a played-back signal; b) decrypting the played-back signal to produce a video signal and one or more sensor signals containing data originally produced by one or more sensors; and c) processing the one or more sensor signals to produce the sensor data. - View Dependent Claims (8, 9, 10)
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11. A method for recording sensor data with a video signal to protect the sensor data, the sensor data being contained in signals from one or more sensors, the method comprising the steps of:
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a) compressing the video signal to produce a compressed video signal; b) combining the compressed video signal and the signals from the one or more sensors to produce a digital signal; c) encrypting the digital signal to produce an output signal; and d) recording the output signal on a recording medium. - View Dependent Claims (12, 13, 14, 15)
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16. Apparatus for recording sensor data with a video signal, the sensor data being contained in signals from one or more sensors, the apparatus comprising:
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an encryption circuit to encrypt the signals from the one or more sensors; a signal processing circuit to combine the video signal and the encrypted signals to produce an output signal; and a recorder to record the output signal on a recording medium. - View Dependent Claims (17, 18, 19, 20, 21)
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22. Apparatus for recording sensor data with a video signal to protect the sensor data, the sensor data being contained in signals from one or more sensors, the apparatus comprising:
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a compression circuit to compress the video signal; a signal processing circuit to combine the compressed video signal and the signals from the one or more sensors and produce a digital signal therefrom; an encryption circuit to encrypt the digital signal and produce an output signal therefrom; and a recorder to record the output signal on a recording medium. - View Dependent Claims (23)
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24. Apparatus for retrieving sensor data originally produced by one or more sensors, the sensor data being encrypted with a video signal to produce a recorded signal that protects the sensor data and being contained in signals from one or more sensors, the apparatus comprising:
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a play-back circuit to play back the recorded signal to produce a played-back signal; a decryption circuit to decrypt the played-back signal to produce a video signal and one or more sensor signals containing data originally produced by one or more sensors, wherein at least one of the sensor signals is a digital signal that has been encrypted with a digital encryption procedure; a logic circuit to determine whether any of the one or more sensor signals are digital signals; and a signal processing circuit to process the one or more sensor signals to produce the sensor data, the signal processing circuit including a decompression circuit to decompress any digital sensor signals.
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Specification