公开(公告)号：US10567711B1

公开(公告)日：2020-02-18

申请号：US16241800

申请日：2019-01-07

Applicant: Amazon Technologies, Inc.

Inventor： James Steven Skeoch

IPC: H02M7/02 ,  H04N7/18 ,  G08B3/10 ,  H04M11/02 ,  H02M7/217

Abstract: In implementations described herein, A/V recording and communication doorbell devices (“A/V doorbells”) and signaling devices may be powered from a common AC waveform. In some implementations, an A/V doorbell and its corresponding signaling device may be arranged in a circuit loop where a portion of an AC waveform is used to power the A/V doorbell and the other portions of the AC waveform is used to power the signaling device. For example, a positive phase of the AC waveform may be used to power one of the A/V doorbell or signaling device and a negative phase of the AC waveform may be used to power the other of the A/V doorbell or signaling device. In some cases, an energy harvester device may be used to slow charge a battery or supercapacitor from the circuit loop to power the A/V doorbell and/or signaling device.