A Driver for a Light Source
First Claim
1. An apparatus for driving one or more light sources, the apparatus comprisinga monitoring portion configured to observe durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to the apparatus,a mode setting portion configured to select one of a plurality of lighting programs for the apparatus in accordance with the observed durations of one or more active periods,wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, anda control portion configured to, in response to an active period, control provision of operating power from the apparatus to the one or more light sources in accordance with the most recently selected lighting program.
1 Assignment
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Accused Products
Abstract
An arrangement for driving one or more light sources is provided. According to an example embodiment, the arrangement includes observing durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to a driver apparatus, selecting one of a plurality of lighting programs for the driver apparatus in accordance with the observed durations of one or more active periods, wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, and controlling, in response to an active period, provision of operating power from the driver apparatus to the one or more light sources in accordance with the most recently selected lighting program.
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Citations
15 Claims
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1. An apparatus for driving one or more light sources, the apparatus comprising
a monitoring portion configured to observe durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to the apparatus, a mode setting portion configured to select one of a plurality of lighting programs for the apparatus in accordance with the observed durations of one or more active periods, wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, and a control portion configured to, in response to an active period, control provision of operating power from the apparatus to the one or more light sources in accordance with the most recently selected lighting program.
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13. A lighting system, comprising:
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one or more apparatuses, and a control entity configured to controllably divide operating power delivered to said apparatuses into active periods separated by temporary interruptions; wherein at least one of said apparatuses comprises; a monitoring portion configured to observe durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to the apparatus, a mode setting portion configured to select one of a plurality of lighting programs for the apparatus in accordance with the observed durations of one or more active periods, wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, and a control portion configured to, in response to an active period, control provision of operating power from the apparatus to the one or more light sources in accordance with the most recently selected lighting program.
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14. A method for driving one or more light sources, the method comprising observing durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to a driver apparatus,
selecting one of a plurality of lighting programs for the driver apparatus in accordance with the observed durations of one or more active periods, wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, and controlling, in response to an active period, provision of operating power from the driver apparatus to the one or more light sources in accordance with the most recently selected lighting program.
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15. A computer program for driving one or more light sources, the computer program including, stored on a nonvolatile storage medium, one or more sequences of one or more instructions which, when executed by one or more processors, cause a driver apparatus to at least perform the following:
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observe durations of active periods, wherein an active period corresponds to a continuous period of operating power being supplied to the driver apparatus, select one of a plurality of lighting programs for the driver apparatus in accordance with the observed durations of one or more active periods, wherein a lighting program defines the desired characteristics of light provided by the one or more light sources as a function of time for a subsequent active period, and control, in response to an active period, provision of operating power from the driver apparatus to the one or more light sources in accordance with the most recently selected lighting program.
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Specification