Method of using a calibration system to generate a latency value
First Claim
1. A method of using a calibration system to generate a latency estimate for calibrating a stimulus-response test system, wherein the method comprises:
- [a] providing a calibration system comprising a stimulus sensor, a response actuator device, and a first set of one or more processors;
[b] providing a stimulus-response test system comprising a stimulus output device for delivering stimuli to a subject, a response input device for receiving responses to the stimuli, a second set of one or more processors, and a response input interface for interfacing between the response input device and the second set of processors;
[c] sensing, using the stimulus sensor, a stimulus output event, the stimulus output event being indicative of delivery of stimulus by the stimulus output device to a subject;
[d] recording, using one or more of the first and second set of processors, a stimulus time associated with sensing the stimulus output event;
[e] generating, by one or more of the first and second set of processors, a calibrator response after sensing the stimulus output event, wherein generating the calibrator response comprises;
sending a response actuation signal from the first set of processors to the response actuator device, therebycausing the response actuator device to physically actuate the response input device via mechanical action, and therebycausing the response input device to provide a response input signal to the response input interface;
[f] recording, using one or more of the first and second set of processors, a response time associated with generating the calibrator response;
[g] determining, using one or more of the first and second set of processors, a calibrator delay (tstim/tresp) based on a difference between the stimulus and response times;
[h] receiving a test system delay (ttot) at one or more of the first and second set of processors, the test system delay representing a time difference between generating the stimulus at the test system and recording the response at the test system; and
[i] determining, using one or more of the first and second set of processors, a latency value (tlat) based on a difference between the test system delay (ttot) and the calibrator delay (tstim/resp).
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Abstract
Methods are provided for calibrating stimulus-response test systems which include a stimulus output device for delivering a stimulus to a subject; and a response input device for receiving a response from the subject. One such method comprises: sensing the stimulus event output by the stimulus output device; recording a calibrator stimulus time associated with detection of the stimulus event in a calibrator separate from the stimulus-response test system; generating a calibrator response after sensing the stimulus event, the calibrator response causing a response input port of the stimulus-response test system to receive a calibrator response signal and to deliver a corresponding calibrator response signal to the test controller; recording a calibrator response time associated with generation of the calibrator response in the calibrator; and determining a latency value associated with the stimulus-response test system based at least in part on a difference between the calibrator response time and the calibrator stimulus time.
44 Citations
12 Claims
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1. A method of using a calibration system to generate a latency estimate for calibrating a stimulus-response test system, wherein the method comprises:
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[a] providing a calibration system comprising a stimulus sensor, a response actuator device, and a first set of one or more processors; [b] providing a stimulus-response test system comprising a stimulus output device for delivering stimuli to a subject, a response input device for receiving responses to the stimuli, a second set of one or more processors, and a response input interface for interfacing between the response input device and the second set of processors; [c] sensing, using the stimulus sensor, a stimulus output event, the stimulus output event being indicative of delivery of stimulus by the stimulus output device to a subject; [d] recording, using one or more of the first and second set of processors, a stimulus time associated with sensing the stimulus output event; [e] generating, by one or more of the first and second set of processors, a calibrator response after sensing the stimulus output event, wherein generating the calibrator response comprises; sending a response actuation signal from the first set of processors to the response actuator device, thereby causing the response actuator device to physically actuate the response input device via mechanical action, and thereby causing the response input device to provide a response input signal to the response input interface; [f] recording, using one or more of the first and second set of processors, a response time associated with generating the calibrator response; [g] determining, using one or more of the first and second set of processors, a calibrator delay (tstim/tresp) based on a difference between the stimulus and response times; [h] receiving a test system delay (ttot) at one or more of the first and second set of processors, the test system delay representing a time difference between generating the stimulus at the test system and recording the response at the test system; and [i] determining, using one or more of the first and second set of processors, a latency value (tlat) based on a difference between the test system delay (ttot) and the calibrator delay (tstim/resp). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of using a calibration system to calibrate a stimulus-response test system, wherein the method comprises:
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[a] providing a calibration system comprising a stimulus sensor, a response actuator device, and a first set of one or more processors; [b] providing a stimulus-response test system comprising a stimulus output device for delivering stimuli to a subject, a response input device for receiving responses to the stimuli, a second set of one or more processors, and a response input interface for interfacing between the response input device and the second set of processors; [c] sensing, using the stimulus sensor, a stimulus output event, the stimulus output event being indicative of delivery of stimulus by the stimulus output device to a subject; [d] recording, using one or more of the first and second set of processors, a stimulus time associated with sensing the stimulus output event; [e] generating, by one or more of the first and second set of processors, a calibrator response after sensing the stimulus output event, wherein generating the calibrator response comprises; sending a response actuation signal from the first set of processors to the response actuator device, thereby causing the response actuator device to physically actuate the response input device via mechanical action, and thereby causing the response input device to provide a response input signal to the response input interface; [f] recording, using one or more of the first and second set of processors, a response time associated with generating the calibrator response; [g] determining, using one or more of the first and second set of processors, a calibrator delay (tstim/tresp) based on a difference between the stimulus and response times; [h] receiving a test system delay (ttot) at one or more of the first and second set of processors, the test system delay representing a time difference between generating the stimulus at the test system and recording the response at the test system; [i] determining, using one or more of the first and second set of processors, a latency value (tlat) based on a difference between the test system delay (ttot) and the calibrator delay (tstim/resp); and [j] using the latency value (tlat) to calibrate one or more response times detected by the stimulus-response test system. - View Dependent Claims (12)
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Specification