公开(公告)号：US20240396655A1

公开(公告)日：2024-11-28

申请号：US18366134

申请日：2023-08-07

Applicant: Apple Inc.

Inventor： Haley A. Taylor ,  Daniel E. Loffgren ,  Glenn D. Henshaw ,  Kevin M. Duffy ,  Sean L. Carstensen

IPC: H04J3/06

Abstract: An electronic device can receive power from a powered accessory and can include a first communication system that communicates with the powered accessory; an internal clock; and a first processing system. Upon connection of the electronic device to the powered accessory, the first processing system can send a time update request to the powered accessory and can update the internal clock based on a time update received from the powered accessory. The powered accessory can include an energy storage device that delivers power to the electronic device; a second communication system that communicates with the electronic device; a real time clock; and a second processing system. Upon connection of the electronic device to the powered accessory and receiving the time update request from the electronic device the processing system can send the time update to the electronic device.