Position sensitive indicator detection
First Claim
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1. A system for detecting states of indicators, comprising:
- a detector containing a plurality of light detecting elements that are arranged relative to the indicators so that light from any of the indicators causes contributions to component signals respectively output from at least two of the light detecting elements, wherein for each of the indicators, the light from the indicator causes contributions to the component signals corresponding to a signal vector characteristic of the indicator; and
an analysis system connected to analyze the component signals to identify the state of one or more of the indicators.
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Abstract
A detector for a test system having multiple indicators uses position sensitive light detection by multiple light detecting elements to produce a measured signal vector. The measured signal vector, which may include fewer components than there are indicators, has a magnitude and a direction that can identify how many and/or which set of the indicators are active. Analysis of the measured vector signal can use vector composition/decomposition techniques.
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Citations
20 Claims
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1. A system for detecting states of indicators, comprising:
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a detector containing a plurality of light detecting elements that are arranged relative to the indicators so that light from any of the indicators causes contributions to component signals respectively output from at least two of the light detecting elements, wherein for each of the indicators, the light from the indicator causes contributions to the component signals corresponding to a signal vector characteristic of the indicator; and an analysis system connected to analyze the component signals to identify the state of one or more of the indicators. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for detecting states of indicators, comprising:
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causing the indicators to emit respective optical signals indicating the states of the indicators; measuring the optical signals using a plurality of light detecting elements, wherein the light detecting elements are positioned so that the optical signal from any of the indicators causes contributions to component signals respectively output from at least two of the light detecting elements, and for each of the indicators, the optical signal from the indicator causes contributions to the component signals corresponding to a signal vector characteristic of the indicator; and analyzing the component signals to identify the state of one or more of the indicators. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification