Port Disconnect Charging Function for USB HUB
AssigneeMicrochip Technology Incorporated
InventorsAtish Ghosh, Donald L. Perkins, Brigham Steele
Life of this patent
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Abstract
A Universal Serial Bus (USB) hub includes a first port that is configured to be switched from a downstream port to an upstream port; a plurality of other ports; and a controller configured to switch a function of the first port from the downstream port to the upstream port responsive to a command from an attached device and further configured to switch at least one of the plurality of other ports from a data and charge port into a port dedicated to charging
Claims25
A Universal Serial Bus (USB) hub comprising :
- a first port that is configured to be switched from a downstream port to an upstream port;
- a plurality of other ports;
- and
- a controller configured to switch a function of the first port from the downstream port to the upstream port responsive to a command from an attached device and further configured to switch at least one of the plurality of other ports from a data and charge port into a port dedicated to charging.
A universal serial bus (USB) hub, comprising:
- a first port that is configured to be switched from a downstream port in a first mode to an upstream port in a second mode;
- a second port that is configured to be switched from an upstream port in the first mode to a downstream port in the second mode;
- and
- at least one third port configured to operate for data transfer in the first mode and as a dedicated charging port in the second mode.
A Universal Serial Bus (USB) hub comprising:
- a plurality of ports;
- a controller configured to switch a function of at least one port of the plurality of ports from a downstream port to an upstream port responsive to a command from an attached device and further configured to switch at least one other of the plurality of ports from a data and charge port into a port dedicated to charging.
A method for operating a Universal Serial Bus (USB) hub including a plurality of ports, the method comprising:
- switching a function of a first port of the plurality of ports from a downstream function to an upstream function responsive to a command from an attached device;
- and
- switching at least one other of the plurality of ports from a data and charge port into a port dedicated to charging.
Dependencies are inferred from the claim text.