Low power glare sensor
First Claim
1. A glare detection system, comprising:
- a light receiving surface;
a first input channel providing an indication of the amount of light impinging on a first portion of the light receiving surface;
a second input channel providing an indication of the amount of light impinging on a second portion of the light receiving surface;
a glare signaling circuit (“
GSC”
) having;
(a) a first input port in communication with the first input channel, (b) a second input port in communication with the second input channel, (c) a logic-or gate capable of producing an output signal when the logic-or gate detects that the first input channel or the second input channel indicates glare on the light receiving surface; and
a glare reducing circuit (“
GRC”
) in communication with the logic-or gate, the GRC being capable of reacting when the logic-or gate produces the output signal.
2 Assignments
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Accused Products
Abstract
The invention may be embodied as a glare detection system or as a method of detecting glare. In a system according to the invention, there may be a light receiving surface, a first input channel, a second input channel, a glare signaling circuit and a glare reducing circuit. The first input channel may provide an indication of the amount of light impinging on a first portion of the light receiving surface. The second input channel may provide an indication of the amount of light impinging on a second portion of the light receiving surface. The glare signaling circuit (“GSC”) may have a first input port in communication with the first input channel, a second input port in communication with the second input channel, a logic-or gate capable of producing an output signal when the logic-or gate detects that the first input channel or the second input channel indicates glare on the light receiving surface. The glare reducing circuit (“GRC”) may be in communication with the logic-or gate, and may be capable of reacting when the logic-or gate produces the output signal. For example, the GRC may react by determining where on the light receiving surface glare exists.
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Citations
31 Claims
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1. A glare detection system, comprising:
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a light receiving surface;
a first input channel providing an indication of the amount of light impinging on a first portion of the light receiving surface;
a second input channel providing an indication of the amount of light impinging on a second portion of the light receiving surface;
a glare signaling circuit (“
GSC”
) having;
(a) a first input port in communication with the first input channel, (b) a second input port in communication with the second input channel, (c) a logic-or gate capable of producing an output signal when the logic-or gate detects that the first input channel or the second input channel indicates glare on the light receiving surface; and
a glare reducing circuit (“
GRC”
) in communication with the logic-or gate, the GRC being capable of reacting when the logic-or gate produces the output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of detecting glare, comprising:
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providing a light receiving surface;
receiving a first indication of the amount of light impinging on a first portion of the light receiving surface;
receiving a second indication of the amount of light impinging on a second portion of the light receiving surface;
determining whether the first indication or the second indication indicates glare on the light receiving surface;
providing an output signal when the first indication or the second indication indicates glare on the light receiving surface, wherein the output signal does not indicate where on the light receiving surface glare exists; and
reacting to the output signal by determining where on the light receiving surface glare exists. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A glare detection system, comprising:
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a first light sensor having an output channel;
a second light sensor having an output channel;
a glare signaling circuit (GSC) having a first input in communication with the output channel of the first light sensor, and having a second input in communication with the output channel of the second light sensor, the GSC having a logic-or gate capable of providing an indication of glare when glare is detected on the first light sensor or the second light sensor. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification