公开(公告)号：US20190227768A1

公开(公告)日：2019-07-25

申请号：US16369285

申请日：2019-03-29

Applicant: EVA Automation, Inc.

Inventor： David Bryant ,  Vanshil Shah ,  Leo Lay ,  Gaylord Yu

IPC: G06F3/16

Abstract: An electronic device may exchange packets with a second electronic device. These packets may include transmit times, based on a given clock in a given electronic device when the packets were transmitted. Moreover, when the packets are received by the electronic device, the electronic device may store associated receive times based on a clock in the electronic device. Using minimum time differences between the transmit and receive times, the electronic device may calculate a time offset between the electronic device and the second electronic device, which may then be used to determine future times in a clock domain of the second electronic device. Moreover, the electronic device may provide additional packets to the second electronic device, where a given additional packet includes audio data, and a playback time, corresponding to a given future time, when the audio data is to be played back by the second electronic device.

公开(公告)号：US10901684B2

公开(公告)日：2021-01-26

申请号：US16369285

申请日：2019-03-29

Applicant: EVA Automation, Inc.

Inventor： David Bryant ,  Vanshil Shah ,  Leo Lay ,  Gaylord Yu

IPC: G06F3/16 ,  H04W56/00 ,  H04R27/00 ,  H04R5/04 ,  H04S7/00

Abstract: An electronic device may exchange packets with a second electronic device. These packets may include transmit times, based on a given clock in a given electronic device when the packets were transmitted. Moreover, when the packets are received by the electronic device, the electronic device may store associated receive times based on a clock in the electronic device. Using minimum time differences between the transmit and receive times, the electronic device may calculate a time offset between the electronic device and the second electronic device, which may then be used to determine future times in a clock domain of the second electronic device. Moreover, the electronic device may provide additional packets to the second electronic device, where a given additional packet includes audio data, and a playback time, corresponding to a given future time, when the audio data is to be played back by the second electronic device.