Patent ID: 11928075
Assignee: DELTA ELECTRONICS, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of transmitting data and command through RS232 serial port, incorporated with a user-end device and a server-end device connected through an RS232 serial port, comprising:
a) controlling a first counter of the user-end device and a second counter of the server-end device to accumulate synchronously when the server-end device transmits data to the user-end device;
b) re-executing the step a) repeatedly until counts of the first counter and the second counter reach a triggering threshold;
c) stopping transmitting the data to the user-end device for a waiting time period and temporarily storing the data to be sent during the waiting time period by the server-end device when the counts of the first counter and the second counter reach the triggering threshold;
d) sending a control command to the server-end device in the waiting time period by the user-end device; and
e) clearing the first counter and the second counter after the waiting time period has elapsed, and then restoring to transmit the data to the user-end device by the server-end device.