Data transmission method and apparatus having data reuse mechanism

A data transmission apparatus having data reuse mechanism comprising:

• a transmission interface;
• a communication circuit electrically coupled to the transmission interface;
• a memory circuit configured to store a driver corresponding to the communication circuit;
• and
• a processing circuit electrically coupled to the transmission interface and the memory circuit and configured to execute a data transmission method comprising:
• operating the driver that serves as a transmission terminal to analyze under-transmitted data to generate reuse setting information, indication information and packets having a complete packet and a plurality of incomplete packets, wherein the complete packet is disposed ahead of the incomplete packets, the complete packet comprises a reusable data section and each of the incomplete packets comprises a non-reusable data section;
• transmitting the reuse setting information, the indication information and the packets by the transmission terminal through a transmission interface so as to be received by the communication circuit that serves as a receiving terminal;
• identifying the complete packet and the incomplete packets according to the indication information by the receiving terminal;
• determining a data location that a reusable data section corresponds to by the receiving terminal according to the reuse information;
• outputting the complete packet directly by the receiving terminal;
• and
• reconstructing the non-reusable data section of each of the incomplete packets with the reusable data section of the complete packet according to the data location to output a plurality of reconstructed packets by the receiving terminal.