IP Library Granted Patent US 9,686,136
Granted Patent B1
US 9,686,136 · App. 15/097,833 · Granted Jun 20, 2017

Assembly and method for calibrating a sensor on a wearable device

Inventors: Saikat Dey (Birmingham, MI); Gerrit Reepmeyer (Novi, MI); Anupam Sengupta (Troy, MI); Mikhail Zhavoronkov (Northville, MI); Senni Perumal (Southfield, MI); Steven Friedman (Concord, CA)
Assignee: Guardhat, Inc.
H04L41/082H04B1/385H04L43/16H04W4/005
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Quick Facts
Patent No.
US 9,686,136
App. No.
15/097,833
Granted
Jun 20, 2017
Kind
B1
Abstract

A method calibrates a sensor for a defined parameter using a calibration station adapted to receive the sensor while it is secured to a wearable device. The calibration station includes a device to close the space surrounding the sensor to control the space. A quantity of an element being measured/calibrated is injected into the space. The quantity of the element is then measured by the sensor. A measured signal is transmitted to the calibration station. The measured signal is compared to a predetermined level. The method identifies when the measured signal differs from the predetermined level by a threshold amount and indicates or adjusts the sensor, depending on the application.

Claims (21)

1. A method for calibrating a device for a defined parameter using a calibration station adapted to receive the device while it is secured to a wearable device, the method comprising the steps of:

closing a space surrounding the device to control the space;

presenting a quantity of an element into the space;

measuring the quantity of the element using the device;

creating a measured signal based on the quantity measured;

transmitting the measured signal to the calibration station;

comparing the measured signal to a predetermined level; and

identifying when the measured signal differs from the predetermined level by a threshold amount.

2. A method as set forth in claim 1 including a step of calibrating the device if the measuring signal differs from the predetermined signal by the predetermined threshold.

3. A method as set forth in claim 1 including a step of activating an alert when the measuring signal differs from the predetermined signal by the predetermined threshold.

4. A method as set forth in claim 1 wherein the predetermined level is adjusted based on the user wearing the wearable device.

5. A method as set forth in claim 1 wherein the predetermined level is adjusted based on readings collected from other devices secured to other wearable devices.

6. A method for calibrating a plurality of devices for a defined parameter using a calibration station, wherein a portion of the plurality of devices is located remote of the calibration station, the method comprising the steps of:

calibrating a device local to the calibration station to create a calibrated device;

moving the calibrated device away from the calibration station and adjacent a non-calibrated device located remotely from the calibration station;

measuring a parameter using the calibrated device to create a calibrated reading;

measuring the parameter using the non-calibrated device to create a non-calibrated reading;

comparing the calibrated and non-calibrated readings to create a comparison value;

calibrating the non-calibrated device when the comparison value exceeds a predetermined value; and

changing the status of the non-calibrated device to a calibrated device when the comparison value is less than the predetermined value.

7. A method as set forth in claim 6 including providing instructions to replace each predetermined level stored in each of the portion of the plurality of devices located remote of the calibration station.

Assignments (2)
SECURITY INTEREST Recorded Jan 27, 2023
From: GUARDHAT, INC.
To: SILICON VALLEY BANK
Reel/Frame 062505/0917 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2016
From: DEY, SAIKAT; REEPMEYER, GERRIT; SENGUPTA, ANUPAM; ZHAVORONKOV, MIKHAIL; PERUMAL, SENNI; FRIEDMAN, STEVEN
To: GUARDHAT, INC.
Reel/Frame 038587/0431 →