Capacitive Proximity Sensor Configuration Including an Antenna Ground Plane

摘要

Embodiments of a capacitive sensor configuration for proximity detection by a playback device are provided. The playback device may include a capacitive proximity sensor configured to detect physical movement in a first direction, and a radio frequency (RF) antenna ground plane oriented at a relative angle to the capacitive proximity sensor. The capacitive proximity sensor may include a first metal electrode coupled to the RF antenna ground plane is coupled to the first metal electrode such that the capacitive proximity sensor may be further configured to detect physical movement in a second direction that is substantially the relative angle to the first direction. The playback device may be configured to determine based on a detection of physical movement by the capacitive proximity sensor, a physical approach of an entity towards the playback device from one or more of the first direction and the second direction.

主权项

1. A playback device comprising:
a capacitive proximity sensor configured to detect physical movement in a first direction, wherein the capacitive proximity sensor includes a first metal electrode; a radio frequency (RF) antenna ground plane oriented at a relative angle to the capacitive proximity sensor, wherein the RF antenna ground plane is coupled to the first metal electrode of the capacitive proximity sensor such that the capacitive proximity sensor is further configured to detect physical movement in a second direction, wherein the second direction is at substantially the relative angle to the first direction; a processor; and memory having stored thereon instructions executable by the processor to cause the playback device to perform functions comprising:
determining based on a detection of physical movement by the capacitive proximity sensor, a physical approach of an entity towards the playback device from one or more of the first direction and the second direction.