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. A example playback device includes a capacitive proximity sensor and a radio frequency (RF) antenna. While a grounding plane of the capacitive proximity sensor is decoupled from a grounding plane of the RF antenna, the playback device determines that the playback device will be rendering audio, and responsively causes the grounding plane of the capacitive proximity sensor to be coupled to the grounding plane of the RF antenna while the playback device is rendering audio.

主权项

1. A playback device comprising:
a capacitive proximity sensor; a radio frequency (RF) antenna; one or more processors; and data storage having stored therein instructions executable by the one or more processors to cause the playback device to perform functions comprising: while a grounding plane of the capacitive proximity sensor is decoupled from a grounding plane of the RF antenna, determining that the playback device will be rendering audio; and responsively causing the grounding plane of the capacitive proximity sensor to be coupled to the grounding plane of the RF antenna while the playback device is rendering audio.