A wall-mountable wireless control device may include an antenna (e.g., a slot antenna or a hybrid slot-patch antenna) for transmitting and/or receiving radio-frequency signals, and may have a conductive material on a large amount (e.g., greater than or equal to approximately 85%) of a front surface
A wall-mountable wireless control device may include an antenna (e.g., a slot antenna or a hybrid slot-patch antenna) for transmitting and/or receiving radio-frequency signals, and may have a conductive material on a large amount (e.g., greater than or equal to approximately 85%) of a front surface of the control device. The wireless control device may operate consistently when installed with different types of faceplate assemblies (e.g., faceplate assemblies having metal and/or plastic components) and when installed with different types of electrical wallboxes (e.g., metal and plastic wallboxes). A faceplate comprising a conductive element may be installed on the wireless control device, such that the conductive element operates as a radiating element of the antenna. The wireless control device may comprise a conductive member (e.g., a conductive label or a conductive strap) extending around a rear enclosure of the wireless control device between opposite sides of a conductive yoke.
대표청구항▼
1. A wall-mountable wireless control device comprising: a yoke configured to mount the control device to an electrical wallbox;a slot antenna, comprising: a conductive element defining a slot; andtwo drive points on opposite sides of the slot, wherein the slot antenna is configured to communicate ra
1. A wall-mountable wireless control device comprising: a yoke configured to mount the control device to an electrical wallbox;a slot antenna, comprising: a conductive element defining a slot; andtwo drive points on opposite sides of the slot, wherein the slot antenna is configured to communicate radio-frequency signals;a radio-frequency communication circuit configured to communicate the radio-frequency signals via the slot antenna; anda control circuit configured to be responsive to the radio-frequency communication circuit. 2. The wireless control device of claim 1, wherein the conductive element of the slot antenna is capacitively coupled to a radiating element. 3. The wireless control device of claim 2, wherein the radiating element defines a second slot substantially aligned with the slot of the conductive element. 4. The wireless control device of claim 3, wherein the radiating element is electrically coupled to the yoke via a single electrical connection. 5. The wireless control device of claim 4, wherein the radiating element is part of a faceplate of the wireless control device. 6. The wireless control device of claim 1, wherein the two drive points comprise respective feet connected to the conductive element that allow for electrical connection between the conductive element and the radio-frequency communication circuit. 7. The wireless control device of claim 6, wherein the radio-frequency communication circuit is configured to drive the feet differentially. 8. The wireless control device of claim 1, further comprising: a bezel configured to be attached to the yoke;wherein the conductive element is located between the bezel and the yoke. 9. The wireless control device of claim 8, further comprising: a user interface provided on the bezel and received through the slot of the conductive element, the user interface comprising an actuation member configured to receive a user input;wherein the control circuit is responsive to the user input received via the actuation member. 10. The wireless control device of claim 1, wherein the two drive points are located at the middle of the slot of the conductive element. 11. The wireless control device of claim 1, wherein the conductive element is configured to operate as a radiating element. 12. The wireless control device of claim 1, wherein the conductive element is part of a faceplate of the wireless control device. 13. A load control device for controlling power delivered from an AC power source to an electrical load, the load control device comprising: a controllably conductive device adapted to be electrically coupled between the AC power source and the electrical load;a slot antenna, comprising: a conductive element defining a slot; andtwo drive points on opposite sides of the slot, wherein the slot antenna is configured to communicate radio-frequency signals;a radio-frequency communication circuit configured to communicate the radiofrequency signals via the slot antenna; anda control circuit configured to be responsive to the radio-frequency communication circuit, and configured to control the controllably conductive device to control the power delivered to the electrical load. 14. The load control device of claim 13, wherein the conductive element of the slot antenna is capacitively coupled to a radiating element. 15. The load control device of claim 14, wherein the radiating element defines a second slot substantially aligned with the slot of the conductive element. 16. A wall-mountable wireless control device comprising: a yoke configured to mount the control device to an electrical wallbox;a user interface configured to receive a user input;an antenna configured to communicate radio-frequency signals;a radio-frequency communication circuit configured to communicate the radio-frequency signals via the antenna;a control circuit configured to be responsive to the user input and the radio-frequency communication circuit; anda conductive element electrically coupled to the yoke via a single electrical connection, the conductive element defining a slot, wherein the user interface is received through the slot of the conductive element, and wherein the conductive element is configured to operate as a radiating element of the antenna. 17. The wireless control device of claim 16, wherein the antenna is capacitively coupled to the conductive element. 18. The wireless control device of claim 17, wherein the antenna defines a second slot substantially aligned with the slot of the conductive element. 19. The wireless control device of claim 18, wherein the control circuit is configured to transmit the radio-frequency signals while receiving the user input. 20. The wireless control device of claim 16, wherein the user interface comprises a touch sensitive actuator.
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이 특허에 인용된 특허 (48)
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