Lighting control
First Claim
1. Apparatus for controlling electrical circuits including lighting circuits, comprising at least one remotely controlled receiver unit responsive to received encoded control signals, said at least one receiver unit comprising:
- means for decoding at least a portion of said received encoded control signals relating to at least two controlled channels for said electrical circuits to produce decoded control signals,signal providing means for each of said at least two controlled channels responsive to said decoded control signals for providing signals to control each of said controlled channels, andselection circuit means coupled between said decoding means and said signal providing means for selecting whether or not particular said decoded control signals result in said provided signals being available to control said channels.
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Accused Products
Abstract
From one aspect the invention provides apparatus for controlling mains electrical circuits including lighting circuits, comprising a remotely controlled receiver unit responsive to received control signals, the receiver unit comprising means for decoding such received control signals in relation to at least two controlled channels for said circuits, means for each channel responsive to plural decoded control signal possibilities for providing signals for the said channel concerned, and selection means associated with the signal providing means for selecting whether or not particular said decoded signal possibilities result in said signals being available and applied to said channel. From another aspect the invention provides apparatus for controlling mains electrical circuits including lighting circuits, comprising control units local to areas or zones served by corresponding said circuits, each local control unit comprising means responsive to local occupancy sensing for switching on of one or more of said circuits and means responsive to other received signals for overriding such switching on irrespective of local occupancy sensing.
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Citations
12 Claims
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1. Apparatus for controlling electrical circuits including lighting circuits, comprising at least one remotely controlled receiver unit responsive to received encoded control signals, said at least one receiver unit comprising:
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means for decoding at least a portion of said received encoded control signals relating to at least two controlled channels for said electrical circuits to produce decoded control signals, signal providing means for each of said at least two controlled channels responsive to said decoded control signals for providing signals to control each of said controlled channels, and selection circuit means coupled between said decoding means and said signal providing means for selecting whether or not particular said decoded control signals result in said provided signals being available to control said channels. - View Dependent Claims (2)
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3. Apparatus for controlling electrical circuits including lighting circuits, comprising at least one local control unit local to an area served by at least one of said electrical circuits, each of said at least one local control unit comprising:
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switching circuit means responsive to local occupancy for switching one or more of said electrical circuits within said area, and override circuit means responsive to received locally originating signals for overriding said switching circuit means irrespective of local occupancy. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
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12. Apparatus for controlling electrical circuits including lighting circuit comprising at least one local control unit for controlling related said circuits, said at least one local control unit comprising:
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at least two controlled channels each serving different groups of said related circuits in terms of supply of load drive signals to said related circuits, selection means for determining which of each of plural possible control signals can pass to each of said controlled channels, decoding means for supplying others of said possible control signals by decoding encoded control signals received by said at least one local control unit from a remote central control unit, local occupancy sensing signal supply means for supplying at least one of said possible control signals, and means for transmitting signals corresponding to said at least one possible control signal from said at least one local control unit to said remote central control unit.
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Specification