Systems and Methods for Determination of Cannabis Impairment Using a Triaxial Gyroscope Assembly
First Claim
1. A system for determination of cannabis impairment of a suspect, comprising:
- a triaxial gyroscope assembly configured to attach to a suspect to sense the angular rate of the suspect'"'"'s movement and transmit signals indicative of the suspect'"'"'s movement in accordance with a wireless communication protocol; and
a computing device, spaced apart from the triaxial gyroscope assembly, configured to receive and store the signals indicative of the suspect'"'"'s movement during a finger to nose test, a walk and turn test, a modified Romberg balance test, and a one leg stand test and compute an indicator of cannabis impairment of the suspect based on the signals.
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Accused Products
Abstract
The invention provides systems and methods to determine cannabis impairment using gyroscopes to sense impaired movement of a suspect. The system includes a triaxial gyroscope assembly that transmits wireless signals indicative of the movement to a computing device configured to receive and store the signals and compute and display cannabis impairment of the suspect based on the signals. The method identifies cannabis impairment, including attaching a triaxial gyroscope assembly to a suspect, computing signals indicative of the movement, transmitting the signals to a computing device, and displaying an indicator of cannabis impairment on the computing device.
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Citations
19 Claims
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1. A system for determination of cannabis impairment of a suspect, comprising:
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a triaxial gyroscope assembly configured to attach to a suspect to sense the angular rate of the suspect'"'"'s movement and transmit signals indicative of the suspect'"'"'s movement in accordance with a wireless communication protocol; and a computing device, spaced apart from the triaxial gyroscope assembly, configured to receive and store the signals indicative of the suspect'"'"'s movement during a finger to nose test, a walk and turn test, a modified Romberg balance test, and a one leg stand test and compute an indicator of cannabis impairment of the suspect based on the signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for testing a suspect for cannabis impairment using a triaxial gyroscope assembly that communicates with a computing device, comprising:
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attaching a triaxial gyroscope assembly that outputs data indicative of the angular rate of the suspect'"'"'s movement during psychophysical tests; reading the output data in a microcontroller; formatting a record of the output data; storing the formatted record in a memory; formatting a record of the output data for Bluetooth transmission; sending the formatted record to a computing device; and computing whether the suspect is cannabis impaired based upon the data record of the suspect'"'"'s movement during the psychophysical tests as sensed by the triaxial gyroscope assembly. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system for determination of cannabis impairment of a suspect, comprising:
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a triaxial gyroscope assembly configured to attach to a suspect to sense the angular rate of the suspect'"'"'s movement and transmit signals indicative of the suspect'"'"'s movement in accordance with a wireless communication protocol; and a computing device, spaced apart from the triaxial gyroscope assembly, configured to receive and store the signals indicative of the suspect'"'"'s movement during two or more psychophysical tests and compute an indicator of cannabis impairment if the suspect'"'"'s movements fails in two or more of the psychophysical tests. - View Dependent Claims (19)
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Specification