April 23rd, Beijing Time -- According to foreign media reports, the United States Patent and Trademark Office approved a new patent for Apple on Tuesday called "Digital Handshake Lock Between Devices." According to the patent description, users can achieve a secure connection with other devices through the camera on their device.According to the description from the tech blog AppleInsider: Through this patent, each device can use its camera to photograph another device and then find a digital handshake key in the captured image, allowing the two devices to establish a secure connection based on this digital handshake key.Users typically store a large amount of digital content on their iPhones, such as contacts, documents, videos, and music. Currently, users can only transfer content between devices via email or text messages, or by using wireless technologies (such as Bluetooth or Wi-Fi) for data transmission. However, this method requires sharing a network password between different devices, whereas Apple's new patent allows the establishment of a secure connection between two devices simply by taking a photo. (kirk)