US 12,461,882 B2
Method and circuit for multiplexing USB interface, electronic device and storage medium
Zhe Chang, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 18/272,359
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed Feb. 28, 2022, PCT No. PCT/CN2022/078510
§ 371(c)(1), (2) Date Jul. 14, 2023,
PCT Pub. No. WO2022/188658, PCT Pub. Date Sep. 15, 2022.
Claims priority of application No. 202110258065.6 (CN), filed on Mar. 9, 2021.
Prior Publication US 2024/0078208 A1, Mar. 7, 2024
Int. Cl. G06F 13/40 (2006.01); G06F 13/42 (2006.01)
CPC G06F 13/4282 (2013.01) [G06F 2213/0042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for multiplexing a USB interface, an electronic device to which the USB interface belongs comprising a plurality of processor ports; and the method comprising:
acquiring at least one path of level signal other than a service data signal and a ground signal in the USB interface;
determining, according to a logic result of the at least one path of level signal and a predefined correlation, a target port of a target processor corresponding to the logic result as a transmission object of the USB interface, wherein, the predefined correlation comprises a logic result of the at least one path of level signal uniquely corresponding to each port of each processor; and
transmitting received data to the transmission object via the USB interface, and sending data to be sent from the transmission object via the USB interface.