Simple code reader
First Claim
1. A medical device assembly comprising:
- a medical device reader configured to perform measurements on a medical device object, the medical device reader comprising a code reader, andthe medical device object configured to be affixed to, aligned with, or inserted into the medical device reader and having a code provided thereon as a pattern imprinted on the object,wherein the code reader comprises;
one or more centroid-measuring photodetectors configured to detect light that has interacted with the pattern, wherein the detected light is indicative of a centroid of the pattern; and
a processing logic configured to;
determine the centroid of the pattern from the detected light, anddetermine the code based on the determined centroid.
1 Assignment
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Accused Products
Abstract
Embodiments of the present disclosure provide code readers for reading codes provided as patterns imprinted on objects. Light interacts with a pattern by e.g. being reflected from or transmitted through the pattern, and at least some of the light that has interacted with the pattern is incident on photosensitive element(s) of one or more photodetectors of a code reader. The code reader employs centroid-measuring photodetector(s), i.e. photodetectors that detect light in such a manner that centroid of a pattern can be obtained directly from the photocurrents generated as a result of the photosensitive elements detecting light incident thereon. The code reader is then configured to process the detected light to determine a centroid of the pattern from the detected light and to decode data encoded in the pattern based on a position of the centroid. Such code readers are substantially less complex than camera-based devices and avoid mechanical scanning.
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Citations
20 Claims
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1. A medical device assembly comprising:
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a medical device reader configured to perform measurements on a medical device object, the medical device reader comprising a code reader, and the medical device object configured to be affixed to, aligned with, or inserted into the medical device reader and having a code provided thereon as a pattern imprinted on the object, wherein the code reader comprises; one or more centroid-measuring photodetectors configured to detect light that has interacted with the pattern, wherein the detected light is indicative of a centroid of the pattern; and a processing logic configured to; determine the centroid of the pattern from the detected light, and determine the code based on the determined centroid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for reading a code provided as a pattern imprinted on a medical device object, the method comprising:
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receiving measurements from one or more centroid-measuring photodetectors of a medical device reader, the one or more centroid-measuring photodetectors configured to measure light that has interacted with the pattern when the medical device object is affixed to, aligned with, or inserted into the medical device reader; determining the centroid of the pattern based on the measurements; and determining the code based on the determined centroid. - View Dependent Claims (17, 18, 19)
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20. A system for reading a code provided as a pattern imprinted on a medical device object, the system comprising:
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means for receiving measurements from one or more centroid-measuring photodetectors of a medical device reader, the one or more centroid-measuring photodetectors configured to measure light that has interacted with the pattern when the medical device object is affixed to, aligned with, or inserted into the medical device reader; means for determining the centroid of the pattern based on the measurements; and means for determining the code based on the determined centroid.
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Specification