Dual-mode dimming of a light
AssigneeGreenwave Systems PTE LTD
InventorKarl S. Jonsson
Life of this patent
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Abstract
A lighting apparatus includes at least one light emitting device, such as one or more LEDs, detection circuitry coupled to a power input of the lighting apparatus and arranged to detect a characteristic of a modulation of the power input, supervisory circuitry, such as a processor, coupled to the detection circuitry, and a network interface, coupled to the supervisory circuitry, to communicate over a network. The supervisory circuitry is adapted to receive a message that includes brightness information over the network, receive information regarding the characteristic of the modulation of the power input from the detection circuitry, and control a brightness of the at least one light emitting device based on the brightness information and the information regarding the characteristic modulation of the power input.
Claims22
A method for controlling brightness of a lighting apparatus, the method comprising:
- receiving a message over a network at the lighting apparatus, and changing a brightness of the lighting apparatus based on the message;
- and
- detecting a change in a characteristic of a modulation of a power input of the lighting apparatus, and changing the brightness of the lighting apparatus based on the change in the characteristic.
An integrated circuit comprising:
- at least one input line;
- at least one output line to control a brightness of a light emitting device;
- and
- a processor coupled to the at least one input line and the at least one output line;
- wherein the processor is configured to:
- receive a message comprising brightness information over a network;
- receive information regarding a modulation of a power line through the at least one input line;
- and
- control the at least one output line based on the brightness information and the information regarding the modulation of the power line.
A lighting apparatus comprising:
- at least one light emitting device;
- detection circuitry coupled to a power input of the lighting apparatus and arranged to detect a characteristic of a modulation of the power input;
- supervisory circuitry coupled to the detection circuitry;
- and
- a network interface, coupled to the supervisory circuitry, to communicate over a network;
- wherein the supervisory circuitry is adapted to
- receive a message comprising brightness information over the network;
- receive information regarding the characteristic of the modulation of the power input from the detection circuitry;
- and
- control a brightness of the at least one light emitting device based on the brightness information and the information regarding the characteristic modulation of the power input.
Dependencies are inferred from the claim text.