Adapter Firmware Upgrade Feedback Mechanism

The patent implements a feedback mechanism where the adapter sends acknowledgment signals back to the smartphone after receiving each data block. The smartphone monitors these feedback signals to determine whether data transmission was successful. If no feedback or error feedback is received, the smartphone retransmits the data block, ensuring accurate data transmission over the long-distance connection.

The patent performs preliminary actions by dividing the firmware upgrade file into multiple data blocks before transmission and preparing error detection codes in advance. The smartphone and adapter also establish communication protocols and data block structures beforehand, which helps prevent transmission errors and facilitates efficient error handling during the actual data transmission process.

The patent segments the firmware upgrade file into multiple smaller data blocks, each with a manageable size and independent error detection capability. This segmentation allows the system to verify and retransmit only the specific blocks that contain errors rather than the entire firmware file, thereby maintaining high reliability while reducing the overall time loss compared to complete retransmission.

The patent dynamically adjusts transmission parameters such as data block size and retransmission timing based on feedback received during the upgrade process. When transmission conditions are good, larger blocks and faster timing are used; when errors occur, the system adjusts to smaller effective block sizes through selective retransmission, optimizing the balance between reliability and speed.