Implementation method of information transmission protocol between host device and two-way receiving device

摘要

end. The technical field to which the invention described in the claims belongs;An information transmission protocol implementation method for lossless transmission of information received from a lower device to a higher device such as a host computer.;I. The technical problem to be solved by the invention;An object of the present invention is to provide a method of implementing an information transmission protocol between a higher level device and a two-way receiving device capable of lossless information transmission.;All. Summary of Solution of the Invention;A two-way receiving device for transmitting information received from a lower device to a higher level device, comprising: transmitting the information received from the lower level device to the higher level device and retransmitting the received information according to a received information response. If there is no response to the reception, it is checked whether the response according to the carriage return transmission for a predetermined time period, and if there is no response according to the carriage return transmission to notify the host device that the information transmission failed over the communication line.;la. Important uses of the invention;It can be used for a device that performs bidirectional communication with a host computer.