INFRARED EMISSION SENSOR
First Claim
1. A motion sensor for detecting motion and providing a control signal, comprising:
- at least one infrared transmitter;
at least one infrared receiver for receiving a reflected signal from said at least one infrared transmitter;
said at least one infrared transmitter contained in a first housing;
said at least one infrared receiver contained in a second housing;
said receiving a reflected signal from said at least one infrared transmitter coupled to at least one control circuit; and
said at least one control circuit controlling at least one output.
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Accused Products
Abstract
13A control keypad assembly that employs an infrared transmitter and receiver to detect the presence of a human body and control a variety of output devices. The control circuit requires that the infrared receiver and the infrared transmitter be housed in separate switch button to eliminate the false triggering caused by other heat-emitting devices and by spurious reflections. By separating the two infrared sensor components, the control circuit is only triggered when the receiver component receives a reflection from the transmitter component. This triggering allows the backlight of the control keypad assembly to illuminate the face of the keypad and the variety of buttons on its face, as well as control a variety of other output devices.
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Citations
17 Claims
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1. A motion sensor for detecting motion and providing a control signal, comprising:
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at least one infrared transmitter;
at least one infrared receiver for receiving a reflected signal from said at least one infrared transmitter;
said at least one infrared transmitter contained in a first housing;
said at least one infrared receiver contained in a second housing;
said receiving a reflected signal from said at least one infrared transmitter coupled to at least one control circuit; and
said at least one control circuit controlling at least one output. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A control keypad configuration, said keypad configuration comprising:
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at least one control circuit for controlling at least one output device;
at least one button on said control keypad configuration;
said at least one button including a LED for illuminating the surface of said at least one button;
at least one infrared transmitter located adjacent to said control keypad configuration;
at least one infrared receiver for receiving a reflected signal from said at least one infrared transmitter;
said at least one infrared transmitter contained in a first housing;
said at least one infrared receiver contained in a second housing;
a receiving mechanism receiving a reflected signal from said at least one infrared transmitter;
said receiving mechanism coupled to said at least one control circuit; and
an illumination mechanism illuminating said at least one button upon said receiving a reflected signal from said at least one infrared transmitter. - View Dependent Claims (8, 9, 10, 11)
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12. A method for detecting the presence of a human body, comprising:
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at least one infrared transmitter;
at least one infrared receiver for receiving a reflected signal from said at least one infrared transmitter;
said at least one infrared transmitter contained in a first housing;
said at least one infrared receiver contained in a second housing;
at least one control circuit coupled to said at least one infrared receiver;
said detecting the presence of a human body occurring when a reflection from said infrared transmitter is received by said infrared receiver; and
said control circuit coupled to at least one output device for controlling the status of said at least one output device. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification