公开(公告)号：US20190236045A1

公开(公告)日：2019-08-01

申请号：US16259623

申请日：2019-01-28

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Tien-Wei YU ,  Cheng-Sheng CHAN ,  Chiun-Shiu CHEN

IPC: G06F13/40 ,  G06F13/42 ,  G06F13/38

CPC classification number: G06F13/4027 ,  G06F13/387 ,  G06F13/4282 ,  G06F2213/0042 ,  G06F2213/3812

Abstract: A USB bridge including a first USB port, a second USB port, a microcontroller, and a host-to-host function circuit is provided. The first USB port is coupled to the first USB host. The second USB port is coupled to the second USB host. The microcontroller is coupled to the first and the second USB ports. The microcontroller communicates with the first and the second USB hosts via the first and the second USB ports, such that the first and the second USB hosts respectively simulate the USB ports of the first and the second USB hosts as virtual comports. The host-to-host function circuit is coupled to the microcontroller and configured to perform a host-to-host transmission function by simulating the USB ports as virtual comports.

公开(公告)号：US20210019274A1

公开(公告)日：2021-01-21

申请号：US17039850

申请日：2020-09-30

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Tien-Wei YU ,  Cheng-Sheng CHAN ,  Chiun-Shiu CHEN

IPC: G06F13/40 ,  G06F13/42

Abstract: A USB bridge including a first USB port, a second USB port, a microcontroller, and a host-to-host function circuit is provided. The first USB port is coupled to the first USB host. The second USB port is coupled to the second USB host. The microcontroller is coupled to the first and the second USB ports. The microcontroller communicates with the first and the second USB hosts via the first and the second USB ports, such that the first and the second USB hosts respectively simulate the USB ports of the first and the second USB hosts as virtual COM ports. The host-to-host function circuit is coupled to the microcontroller and configured to perform a host-to-host transmission function by simulating the USB ports as virtual COM ports.