Dual-Mode Bluetooth Connections With Same-Device Identity Checks

The patent applies preliminary action by having the Bluetooth earphone determine whether to establish a BLE connection before actually establishing it. The system checks whether the terminal device sending the BLE connection request is the same as the one that initiated the classic Bluetooth connection. This preliminary determination prevents uncertain and unstable connection scenarios where different devices try to connect simultaneously, thereby resolving the contradiction between compatibility and stability.

The patent applies segmentation by dividing the connection management logic into distinct segments: classic Bluetooth connection handling and BLE connection handling. The system segments the determination process to check whether the terminal device for BLE connection is the same as the classic Bluetooth terminal device. This segmentation prevents internal communication chaos by clearly defining the conditions under which each connection type should be established, thus managing the complexity of supporting both technologies.

The patent applies preliminary action by performing device identity determination before establishing the BLE connection. The system checks whether the terminal device sending the BLE connection request is the same as the one that initiated the classic Bluetooth connection. This preliminary check ensures connection certainty by preventing uncertain scenarios where different devices try to connect simultaneously, while still maintaining relatively fast connection establishment.