A few days ago, the US Patent and Trademark Office issued a series of Apple patent applications, touching on wireless power transmission and the same dispatching system. The first patent is a multi-port power adapter, which can supply power to multiple electronic devices. The adapter has wired charging and wireless charging. The second patent is a remote charging device, which is divided into a remote transmitter and a receiver, so that it can be charged when it is far away from the charging base. We know that wireless charging now faces many technical problems, first of all, the charging power is limited, and second, the wireless interval is limited. When you have multiple devices to charge, and participate in wireless charging at the same time, the power will become low. The farther the wireless charging transmitter is at the same interval, the lower the charging power will become.