US 8,941,330 B2Granted

Light source operation

AssigneeHewlett-Packard Development Company, L.P.

InventorsKay Seah Ng, Kay Hoe Ng, Chee How Lee

Life of this patent

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Abstract

In one example implementation in accordance with the present disclosure, a process is provided. The process includes entering a first mode of operation where a plurality of light sources are permitted to illuminate. The process further includes entering a second mode of operation where the plurality of light sources associated with the first switch are not permitted to illuminate, and where the entering of the second mode of operation is in response to not detecting a presence for a time period. The process still further includes entering a third mode of operation in response to receiving a command, where only a subset of the plurality of light sources are permitted to illuminate and the remainder of the plurality of light sources are not permitted to illuminate.

Claims20

Dependent claims

A method to reduce power consumption, comprising:

entering, by a first switch, a first mode of operation, wherein during the first mode of operation a plurality of light sources associated with the first switch are permitted to illuminate;
entering, by the first switch, a second mode of operation, wherein during the second mode of operation the plurality of light sources associated with the first switch are not permitted to illuminate, and wherein the entering of the second mode of operation is in response to not detecting a presence proximate to the first switch for a time period;
re-entering, by the first switch, the first mode of operation, wherein the re-entering of the first mode of operation is in response to detecting a presence proximate to the first switch;
receiving, by the first switch, a command to enter a third mode of operation, wherein during the third mode of operation only a subset of the plurality of light sources are permitted to illuminate and the remainder of the plurality of light sources are not permitted to illuminate;
and
entering, by the first switch, the third mode of operation.

3 more elements

A first switch, comprising:

a plurality of ports;
a plurality of light sources associated with the plurality of ports;
a presence detector to detect presence proximate to the switch;
and
a power efficiency module communicatively coupled to the presence detector and the plurality of light sources, wherein the power efficiency module is to
cause the first switch to enter a second mode of operation in response to the presence detector not detecting a presence proximate to the first switch for a time period, wherein during the second mode of operation the plurality of light sources associated with the plurality of ports are not permitted to illuminate;
cause the first switch to enter a first mode of operation in response to the presence detector detecting a presence proximate to the first switch, wherein during the first mode of operation the plurality of light sources associated with the plurality of ports are permitted to illuminate;
and
cause the first switch to enter a third mode of operation in response to receiving a first command, wherein during the third mode of operation only a subset of the plurality of light sources associated with the plurality of ports are permitted to illuminate and the remainder of the plurality of light sources associated with the plurality of ports are not permitted to illuminate.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/848,516Filed 21 Mar 2013
Published: US 2014/0285116 A125 Sep 2014
Granted: 27 Jan 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H05B 47/16
Controlling the light source: by timing means
H05B 47/115
In response to determined parameters: by determining the presence or movement of objects or living beings
Y02B 20/40
Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps: control techniques providing energy savings, e.g. smart…
H05B
Electric heating