Method and apparatus for analyte measurement
First Claim
Patent Images
1. A method for a portable computing device having an image sensor and a screen on a same side of the portable computing device to read a reaction area on a test strip, which is located in a peripheral device, the method comprising:
- providing light with a portion of the screen to the peripheral device, which is placed over the image sensor and the portion of the screen and directs the light from the portion of the screen to illuminate the reaction area in a manner that the image sensor on the same side is impinged by the light passing through the reaction area or by the light scattered or reflected from the reaction area;
capturing an image with the image sensor substantially free from ambient light, wherein the image includes the reaction area; and
determining an analyte characteristic based on a color of the captured reaction area in the image.
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Abstract
A method is provided for a portable computing device to read a reaction area on a test strip, which is located in a peripheral device placed over an image sensor and a light source of the portable computing device. Light is provided with the light source, which the peripheral device directs to the reaction area. An image including the reaction area is captured with the image sensor. An analyte characteristic is determined based on a color of the captured reaction area in the image.
51 Citations
18 Claims
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1. A method for a portable computing device having an image sensor and a screen on a same side of the portable computing device to read a reaction area on a test strip, which is located in a peripheral device, the method comprising:
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providing light with a portion of the screen to the peripheral device, which is placed over the image sensor and the portion of the screen and directs the light from the portion of the screen to illuminate the reaction area in a manner that the image sensor on the same side is impinged by the light passing through the reaction area or by the light scattered or reflected from the reaction area; capturing an image with the image sensor substantially free from ambient light, wherein the image includes the reaction area; and determining an analyte characteristic based on a color of the captured reaction area in the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17)
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13. A method for a portable computing device to read a reaction area on a test strip, which is located in a peripheral device placed over an image sensor and a touchscreen of the portable computing device, the method comprising:
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sensing areas on the test strip or the peripheral device contacting the touchscreen, wherein the areas comprises conductive dots made of conductive rubber, conductive fiber, conductive cloth, or a combination thereof; determining an arrangement of the areas, an orientation of the areas, or a combination thereof; based on the arrangement of the areas, the orientation of the areas, or the combination thereof, determining an analyte type, a production batch number of the test strip, an orientation of the reaction area on the test strip, or a combination thereof; providing light with a portion of the touchscreen of the portable computing device, wherein the peripheral device directs light from the touchscreen to the reaction area; capturing an image with the image sensor, wherein the image includes the reaction area; and determining an analyte characteristic based on a color of the captured reaction area in the image.
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18. A method for a portable computing device having an image sensor and a screen on a same side of the portable computing device to read a reaction area on a test strip, which is located in a peripheral device, the method comprising:
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providing light with a portion of the screen to the peripheral device, which is placed over the image sensor and the portion of the screen and directs the light from the portion of the screen to illuminate the reaction area in a manner that the image sensor on the same side receives the light passing through the reaction area or the light scattered or reflected from the reaction area; prior to capturing the image including the reaction area, determining an imaging condition based on a reference area on the test strip; adjusting an image sensor setting based on the imaging condition; capturing an image with the image sensor substantially free from ambient light and based on the image sensor setting, wherein the image includes the reaction area; and determining an analyte characteristic based on a color of the captured reaction area in the image.
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Specification