Method and System for Optoelectronic Detection and Location of Objects
First Claim
1. A system for locating an object, comprising:
- an optical sensor capable of making light measurements in a field of view;
a motion process that provides relative motion between the object and the optical sensor, such thatthe object passes through the field of view; and
the object crosses a reference position at a reference time;
a process that determines an estimate of the reference time by predicting the reference time; and
a signaling process that produces a signal at a time that is responsive to the estimate of the reference time.
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Accused Products
Abstract
Disclosed are methods and systems for optoelectronic detection and location of moving objects. The disclosed methods and systems capture one-dimensional images of a field of view through which objects may be moving, make measurements in those images, select from among those measurements those that are likely to correspond to objects in the field of view, make decisions responsive to various characteristics of the objects, and produce signals that indicate those decisions. The disclosed methods and systems provide excellent object discrimination, electronic setting of a reference point, no latency, high repeatability, and other advantages that will be apparent to one of ordinary skill in the art.
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Citations
4 Claims
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1. A system for locating an object, comprising:
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an optical sensor capable of making light measurements in a field of view; a motion process that provides relative motion between the object and the optical sensor, such that the object passes through the field of view; and the object crosses a reference position at a reference time; a process that determines an estimate of the reference time by predicting the reference time; and a signaling process that produces a signal at a time that is responsive to the estimate of the reference time.
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2. A system for locating an object, comprising:
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an optical sensor capable of making light measurements in a field of view; a motion process that provides relative motion between the object and the optical sensor, such that the object passes through the field of view; and the object crosses a reference position at a reference time; a process that determines an estimate of the reference time; and a signaling process that uses the estimate of the reference time to produce a signal at a signal time, wherein there is no latency between the reference time and the signal time.
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3. A method for locating an object, comprising:
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using an optical sensor to make light measurements in a field of view; providing relative motion between the object and the optical sensor in a direction of motion, wherein the object passes through the field of view; and the object crosses a reference position at a reference time; determining an estimate of the reference time by predicting the reference time; and producing a signal at a time that is responsive to the estimate of the reference time.
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4. A method for locating an object, comprising:
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using an optical sensor to make light measurements in a field of view; providing relative motion between the object and the optical sensor in a direction of motion, wherein the object passes through the field of view; and the object crosses a reference position at a reference time; determining an estimate of the reference time; and using the estimate of the reference time to produce a signal at a signal time, wherein there is no latency between the reference time and the signal time.
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Specification