Lighting Control System
First Claim
1. An electronic device, comprising:
- a light source configured to provide illumination and to transmit data optically through free space;
a light detector configured to receive data transmitted optically through free space; and
control circuitry configured to produce commands in response to input and to transmit said commands using the light source.
4 Assignments
0 Petitions
Accused Products
Abstract
Intelligent illumination device are disclosed that use components in an LED light to perform one or more of a wide variety of desirable lighting functions for very low cost. The LEDs that produce light can be periodically turned off momentarily, for example, for a duration that the human eye cannot perceive, in order for the light to receive commands optically. The optically transmitted commands can be sent to the light, for example, using a remove control device. The illumination device can use the LEDs that are currently off to receive the data and then configure the light accordingly, or to measure light. Such light can be ambient light for a photosensor function, or light from other LEDs in the illumination device to adjust the color mix.
93 Citations
31 Claims
-
1. An electronic device, comprising:
-
a light source configured to provide illumination and to transmit data optically through free space; a light detector configured to receive data transmitted optically through free space; and control circuitry configured to produce commands in response to input and to transmit said commands using the light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A lighting system comprising:
-
a light source configured to receive commands communicated optically through free space; a building controller configured to control the lighting system; and a human machine interface (HMI) configured to receive commands from the building controller and to forward said commands to the light source optically through free space. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
-
-
24. An electronic device, comprising:
-
a display interface to enable a user to provide input to the electronic device; control circuitry configured to produce commands in response to such input; and a light source configured to provide illumination of the display and to transmit commands optically through free space. - View Dependent Claims (25)
-
-
26. A method to transmit data from a light source, comprising;
-
configuring the light source to produce a particular average output light level; controlling the light source to emit at least two different output light levels during a period of time when transmitting data; reducing the output light level for a period of time before or after the period of time when transmitting data. - View Dependent Claims (27, 28, 29, 30, 31)
-
Specification