公开(公告)号：US11009930B2

公开(公告)日：2021-05-18

申请号：US16033061

申请日：2018-07-11

Applicant: Microchip Technology Incorporated

Inventor： Jeffrey Hunt ,  Andrew Rogers

IPC: G06F1/26 ,  G06F13/42

Abstract: A universal serial bus (USB) hub includes detection circuits for a D− and a D+ connection of a USB port and a control circuit. The control circuit is configured to disable, detection circuits, respective impedances. After disabling the respective impedances, the USB hub is further configured to detect, at the detection circuits, respective values from the D+ connection and the D− connection. The USB hub is further configured to, based upon the respective values, switch the USB port between a device port configuration and a host port configuration.

公开(公告)号：US20230273888A1

公开(公告)日：2023-08-31

申请号：US18108806

申请日：2023-02-13

Applicant: Microchip Technology Incorporated

Inventor： Andrew Rogers

IPC: G06F13/38 ,  G06F13/42

CPC classification number: G06F13/382 ,  G06F13/4282 ,  G06F2213/0042

Abstract: An apparatus includes two PHY circuits, each including a PHY transmitter circuit and connected to a universal serial bus (USB)-C connector. The apparatus includes a USB circuit to issue a receiver detect signal through one of the PHY transmitters circuit to the USB-C connector, issue another receiver detect signal through the other PHY transmitter circuit to the USB-C connector, determine which receiver detect signal resulted in a termination in a USB-C element, and consequently determine an orientation of a USB plug connected between the apparatus and the USB-C element.

公开(公告)号：US20190332152A1

公开(公告)日：2019-10-31

申请号：US16033061

申请日：2018-07-11

Applicant: Microchip Technology Incorporated

Inventor： Jeffrey Hunt ,  Andrew Rogers

IPC: G06F1/26 ,  G06F13/42

Abstract: A universal serial bus (USB) hub includes detection circuits for a D− and a D+ connection of a USB port and a control circuit. The control circuit is configured to disable, detection circuits, respective impedances. After disabling the respective impedances, the USB hub is further configured to detect, at the detection circuits, respective values from the D+ connection and the D− connection. The USB hub is further configured to, based upon the respective values, switch the USB port between a device port configuration and a host port configuration.

公开(公告)号：US20230289312A1

公开(公告)日：2023-09-14

申请号：US18077385

申请日：2022-12-08

Applicant: Microchip Technology Incorporated

Inventor： Andrew Rogers

IPC: G06F13/40 ,  G06F13/16

CPC classification number: G06F13/4068 ,  G06F13/1694 ,  G06F2213/0042

Abstract: A USB control method comprising: counting errors encountered by a USB connection; comparing a number of counted errors to an error count threshold within a set time frame; identifying a port speed configuration for the USB connection; and changing the port speed configuration for the USB connection to a slower port speed configuration than the identified port speed configuration.

公开(公告)号：US11132040B2

公开(公告)日：2021-09-28

申请号：US16146232

申请日：2018-09-28

Applicant: Microchip Technology Incorporated

Inventor： Brigham Steele ,  Andrew Rogers ,  Shannon Cash ,  Matthew Kalibat

IPC: G06F1/26 ,  G01R21/133 ,  G05B19/042 ,  G05F1/66 ,  G06F1/28 ,  G06F13/38 ,  H02J1/14

Abstract: A Universal Serial Bus (USB) dock includes ports, a processor, and instructions to cause the processor, below a level of an operating system running applications and accessing the USB dock, identify a first port of the plurality of ports as a priority port. The processor may be further caused to detect a connection to the dock. The processor may be further caused to determine whether a candidate port to which the connection is made is the priority port. The processor may be further caused to, based on a determination that the candidate port is the priority port, recover power from other ports and advertise power capabilities of the priority port to a USB element connecting to the dock.

公开(公告)号：US20200012326A1

公开(公告)日：2020-01-09

申请号：US16146232

申请日：2018-09-28

Applicant: Microchip Technology Incorporated

Inventor： Brigham Steele ,  Andrew Rogers ,  Shannon Cash ,  Matthew Kalibat

IPC: G06F1/26 ,  H02J1/14 ,  G06F13/38 ,  G01R21/133 ,  G06F1/28 ,  G05F1/66 ,  G05B19/042

Abstract: A Universal Serial Bus (USB) dock includes ports, a processor, and instructions to cause the processor, below a level of an operating system running applications and accessing the USB dock, identify a first port of the plurality of ports as a priority port. The processor may be further caused to detect a connection to the dock. The processor may be further caused to determine whether a candidate port to which the connection is made is the priority port. The processor may be further caused to, based on a determination that the candidate port is the priority port, recover power from other ports and advertise power capabilities of the priority port to a USB element connecting to the dock.