Patent Number: 6,253,329

Title: Universal serial bus (USB) hub having a plurality of input power sources

Abstract: A universal serial bus (USB) hub having a plurality of input power sources receives power through an upstream cable or from a local power source unit, and uses it for internal power consumption in the USB hub and for distribution to other USB functions through at least one downstream port. The hub includes a power source interface for inputting both bus power provided through the upstream cable and self-power generated by the local power source unit. Whether or not self-power is to be supplied is determined based on whether or not a user connects an additional power source cable to the USB hub. Thus, it is not necessary for the user to purchase a bus power USB hub or a self-power USB hub separately. The user can easily select a power source supply method which would fit his needs by simply adding a power source cable for self-power.

Inventors: Kang; Hyun-Seek (Suwon, KR)

Assignee: SamSung Electronics Co., Ltd.

International Classification: G06F 1/26 (20060101); G06F 001/28 ()

Expiration Date: 06/26/2018