Remote control having a capacitive touch surface and a mechanism for awakening the remote control

Patent metadata

Field	Value
Publication number	US-9524633-B2
Application number	US-201313826746-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Mar 14, 2013
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

A remote control device having capacitive touch controls may be configured to enter a sleep state (or mode). For example, the remote control device may be configured to enter the sleep state upon expiration of an interval of time since a most recent button press. The remote control may be configured to awaken from the sleep state when one or more portions of a housing of the remote control are deflected, for example, when a user grasps the remote control to actuate one or more of the capacitive touch controls. For example, the remote control device may include a switch. The switch may include a carbon structure that may be configured to contact an open circuit pad on a circuit board to close the corresponding circuit when the housing is deflected and awaken the remote control device from the sleep state.

First claim

What is claimed is:

1. A remote control device configured for use with a load control device, the remote control device comprising:
a housing supporting a capacitive touch surface, the housing having a resiliently deformable portion configured to be operated from a relaxed state to a deformed state, the capacitive touch surface being configured to provide and receive touch controls for controlling an electrical load using the load control device;
a printed circuit board (PCB) disposed in the housing;
at least one light emitting diode (LED);
a control circuit mounted to the PCB and configured to illuminate the at least one LED to indicate the touch controls for controlling the electrical load using the load control device, the control circuit configured to operate in a sleep state in which the control circuit disables the receipt of the touch controls on the capacitive touch surface and un-illuminates the at least one LED to use less power while the remote control device is on;
a switch configured to awaken the control circuit from the sleep state, the switch being supported by the PCB;
a membrane comprising a rim and a partial spherical body attached to the rim having an inward facing surface and an opposed outward facing surface, wherein a top portion of the rim rests on a surface of the PCB supporting the switch, the outward facing surface being in contact with the deformable portion of the housing; and
a portion of a conductive member attached to the inward facing surface of the partial spherical body of the membrane, wherein, when the deformable portion of the housing is deformed into the deformed state, the portion of the conductive member attached to the inward facing surface of the partial spherical body of the membrane makes electrical contact with a portion of the switch such that the control circuit is awakened from the sleep state to illuminate the at least one LED to indicate portions of the capacitive touch surface for receiving the touch controls, and enable the capacitive touch surface to receive the touch controls for controlling the electrical load using the load control device.

2. The remote control device of claim 1 , wherein the capacitive touch surface comprises a front panel, and wherein the front panel comprises a plurality of touch icons, wherein the plurality of touch icons are displayed on an outer surface of the front panel, and wherein each touch icon of the plurality of touch icons corresponds to a different touch control of the touch controls for controlling the electrical load using the load control device.

3. The remote control device of claim 1 , wherein the switch comprises an open circuit pad defining an open circuit.

4. The remote control device of claim 3 , wherein the portion of the conductive member comprises an activated carbon structure.

5. The remote control device of claim 4 , wherein the activated carbon structure attached to the inward facing surface of the partial spherical body of the membrane is spaced apart from the open circuit pad of the switch.

6. The remote control device of claim 4 , wherein the activated carbon structure attached to the inward facing surface of the partial spherical body of the membrane is preloaded such that the activated carbon structure is at least partially inserted into the open circuit pad of the switch.

7. The remote control device of claim 4 , wherein the deformable portion comprises an impedance member support on an interior surface thereof, and wherein the outward facing surface of the partial spherical body of the membrane abuts the impedance member support on the deformable portion of the housing.

8. The remote control device of claim 7 , wherein the deformable portion comprises a convex shape in the relaxed state.

9. The remote control device of claim 7 , wherein the housing further comprises sidewalls attached to the deformable portion, wherein the sidewalls are angled inward from the capacitive touch surface and outward from the deformable portion, and wherein the deformable portion comprises a concave shape in the relaxed state.

10. The remote control device of claim 7 , wherein, when the deformable portion of the housing is flexed into the deformed state, the impedance member support forces the membrane and the activated carbon structure to be at least partially inserted into the open circuit pad such that the open circuit is at least partially closed causing the capacitive touch surface to awaken from the sleep state.

11. A remote control device for controlling an electrical load, the remote control device comprising:
a capacitive touch surface comprising a capacitive touch electrode printed circuit board (PCB), wherein the capacitive touch surface is configured to provide and receive touch controls for controlling the electrical load, and the capacitive touch surface comprising a plurality of icons configured to be illuminated to indicate the touch controls for controlling the electrical load;
a control circuit configured to illuminate the plurality of icons to indicate portions of the capacitive touch surface for receiving the touch controls for controlling the electrical load, the control circuit configured to operate in a sleep state in which the control circuit disables the receipt of the touch controls on the capacitive touch surface and un-illuminates the plurality of icons to use less power while the remote control device is on;
a flexible housing supporting the capacitive touch surface;
a membrane comprising a rim and a partial spherical body attached to the rim having an inward facing surface and an opposed outward facing surface, wherein a top portion of the rim rests on a surface of the capacitive touch electrode PCB, the outward facing surface being in contact with the flexible housing; and
a portion of a conductive member attached to the inward facing surface of the partial spherical body of the membrane, wherein flexing at least a portion of the housing causes the portion of the conductive member to make electrical contact with a switch causing the control circuit to awaken from the sleep state to illuminate the plurality of icons to indicate the portions of the capacitive touch surface for receiving the touch controls, and enable the capacitive touch surface to receive the touch controls for controlling the electrical load.

12. The remote control device of claim 11 , wherein the capacitive touch surface comprises a front panel, and wherein the front panel comprises the plurality of icons, wherein the plurality of icons are displayed on an outer surface of the front panel, and wherein each icon of the plurality of icons corresponds to a different touch control of the touch controls and is configured to be actuated to control the electrical load, wherein the electrical load is a lighting load.

13. The remote control device of claim 12 , wherein the capacitive touch electrode PCB comprises a first surface configured to abut an inner surface of the front panel, wherein the capacitive touch electrode PCB comprises one or more openings therethrough, and wherein the portions of the capacitive touch surface comprise capacitive sensing portions surrounding the openings on the first surface thereof.

14. The remote control device of claim 13 , further comprising one or more light pipes configured to transport light from one or more light emitting diodes (LEDs) to the plurality of icons on the outer surface of the front panel for illumination thereof and a sub-bezel for housing the light pipes and the LEDs.

15. The remote control device of claim 14 , wherein the sub-bezel defines a depressed base portion on a first surface thereo

Assignees

• Lutron Electronics Co

Inventors

• Mann Timothy
• Mcdonald Matthew Philip
• Carmen Jr Lawrence R
• Stevens Jr Robert D

Classifications

• G08C2201/12

  Power saving techniques of remote control or controlled devices · CPC title

• G08C17/02 Primary

  using a radio link · CPC title

• G08C17/00 Primary

  Arrangements for transmitting signals characterised by the use of a wireless electrical link · CPC title

• G08C2201/30

  User interface · CPC title