公开(公告)号：US20170207049A1

公开(公告)日：2017-07-20

申请号：US15344598

申请日：2016-11-07

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chih-Chin Yang ,  Chia-Chang Hsu ,  Yun-Kuo Lee

IPC: H01H47/00 ,  G01R19/175 ,  G01R19/00

CPC classification number: H01H47/001 ,  H02H3/046 ,  H02H3/12 ,  H02H5/10

Abstract: A system for actively detecting an alternating current (AC) load includes a first power interface, a second power interface, a switch unit, and a control unit. The first power interface is coupled to an AC source to receive and provide an AC voltage. The second power interface is configured to be coupled to an electronic equipment to provide the AC source to the electronic equipment and provide a connection signal according to whether the electronic equipment is coupled to the second power interface. The switch unit is coupled between the first power interface and the second power interface and receives a switch signal to determine whether the AC voltage is transmitted to the second power interface. The control unit is coupled to the second power interface and the switch unit to provide the switch signal according to the connection signal.

公开(公告)号：US20240160599A1

公开(公告)日：2024-05-16

申请号：US18384395

申请日：2023-10-27

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Shun-Liang Yang ,  Chiun-Shiu Chen ,  Chih-Chin Yang

IPC: G06F13/42

CPC classification number: G06F13/4286 ,  G06F2213/0016

Abstract: A serial communication bus system with a dynamic address table and its control method allows the master device to detect the removal of slave devices from the serial communication bus using allocated addresses and a common initial address through interactive polling. Additionally, when new slave devices connect to the bus, they can be directly detected, and non-conflicting new addresses can be assigned, eliminating the need to reassign addresses for all connected slave devices, as required in the conventional approach.

公开(公告)号：US20240241852A1

公开(公告)日：2024-07-18

申请号：US18541502

申请日：2023-12-15

Applicant: Prolific Technology INC.

Inventor： Shun-Liang Yang ,  Chiun-Shiu Chen ,  Chih-Chin Yang

IPC: G06F13/42

CPC classification number: G06F13/4282 ,  G06F2213/0016

Abstract: A serial communication bus system with dynamic address assignment and its control method are provided in this invention. The system allows the master device to directly assign device addresses to slave devices without the need for additional signals. This assignment is determined by whether the slave device returns a confirmation (ACK) signal, enabling the next address allocation. Slave devices can also obtain unique device addresses through this allocation process. Therefore, with this invention's serial communication bus system and control method featuring dynamic address assignment, existing I2C bus signals can dynamically assign device addresses, facilitating the identification of a plurality of slave devices and preventing address conflicts among them, thereby improving communication transmission.