LIGHTING APPARATUS HAVING PLURAL ANALOG OUTPUTS
First Claim
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1. Lighting apparatus comprising:
- an analog input;
a plurality of driving circuits each capable of driving a light source;
a control circuit configured to provide a plurality of analog output signals in response to an analog input signal presented at the analog input, the control circuit embodying a plurality of mappings, each of the mappings relating values of one of the analog output signals to values of the analog input signal presented at the analog input;
wherein each of the plurality of driving circuits is connected to be controlled by one of the analog output signals;
wherein the mappings are such that, for each of the analog output signals, changing the value of the analog input signal within a range causes the analog output signal to vary according to a profile specified by the one of the plurality of mappings associated with the analog output signal.
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Abstract
The invention provides a system of generation of multi-channel analog output signals, from a single analog input signal, and the controlled activation of peripheral devices responsive to the multi-channel analog output signals. A single-channel to multi-channel analog-to-analog converter is provided to convert the single analog input signal to multiple output channels. Uni-directional coupling is used for coupling and mixing the multi-channel outputs and transferring the mixed outputs to a data bus. Signals on the data bus are used to drive the multiple peripheral devices.
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Citations
35 Claims
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1. Lighting apparatus comprising:
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an analog input; a plurality of driving circuits each capable of driving a light source; a control circuit configured to provide a plurality of analog output signals in response to an analog input signal presented at the analog input, the control circuit embodying a plurality of mappings, each of the mappings relating values of one of the analog output signals to values of the analog input signal presented at the analog input; wherein each of the plurality of driving circuits is connected to be controlled by one of the analog output signals; wherein the mappings are such that, for each of the analog output signals, changing the value of the analog input signal within a range causes the analog output signal to vary according to a profile specified by the one of the plurality of mappings associated with the analog output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification