Method for reading indicia off a display of a mobile device
First Claim
1. A method comprising:
- initiating a scan mode of a scanner to capture images presented on a display of a mobile device;
illuminating, with the scanner, the mobile device for a period of time causing a light sensor of the mobile device to increase a backlight intensity of the display;
when the period of time ends, ceasing illuminating the mobile device and then capturing, with the scanner, images of the display when the display has the increased backlight intensity; and
attempting to decode the captured images.
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Accused Products
Abstract
A method of scanning and reading indicia off a display is disclosed. The method may utilize a light sensor of a mobile device to improve the quality of reading indicia, such as a barcode, off a display. A scanner illuminates the mobile device in order to increase the backlight intensity and obtain a high contrast image on the display and then ceases illumination in order to scan the high contrast image without specular reflection caused by the scanner illumination. In one embodiment, the scanner illuminates the mobile device for a period of time to achieve the maximum level of brightness that the mobile device is capable of emitting on the display in the period of time before ceasing the illumination. In another embodiment, the scanner detects whether the change in brightness is greater than predefined level before ceasing the illumination.
471 Citations
20 Claims
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1. A method comprising:
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initiating a scan mode of a scanner to capture images presented on a display of a mobile device; illuminating, with the scanner, the mobile device for a period of time causing a light sensor of the mobile device to increase a backlight intensity of the display; when the period of time ends, ceasing illuminating the mobile device and then capturing, with the scanner, images of the display when the display has the increased backlight intensity; and attempting to decode the captured images. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A scanner comprising:
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an illumination system; a sensor; and a decoder, wherein the scanner is configured for; in a scan mode, capturing images presented on a display of a mobile device; attempting to decode a first set of captured images for a time period, when the scanner is not illuminating the mobile device; if decoding the first set of captured images in the time period is not successful; illuminating the mobile device; attempting to decode a second set of captured images, detecting whether backlight intensity of the display has increased by more than a predetermined level as compared with a previous measurement, if decoding the second set of captured images is not successful, ceasing illuminating the mobile device, if the backlight intensity has increased more than the predetermined level and then capturing a third set of captured images when the backlight intensity having increased more than the predetermined level; and attempting to decode the third set of captured images. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A scanner system comprising:
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a mobile device; an illumination system; a sensor; and a decoder; wherein the scanner is configured for; in a scan mode, capturing images presented on a display of the mobile device; illuminating the mobile device for a period of time causing a light sensor of the mobile device to increase a backlight intensity of the display; when the period of time ends, ceasing illuminating the mobile device and then capturing images of the display when the display has the increased backlight intensity; and attempting to decode the captured images. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification