Power-over-ethernet (POE)-enabled network device and USB device power negotiation using USB to POE protocol conversion
First Claim
Patent Images
1. A method comprising:
- at a Network-Universal Serial Bus (NUSB) adaptor to exchange (i) Power-over-Ethernet (PoE) packets with, and receive power from, a Power Source Equipment (PSE) over a PoE connection with the PSE, and (ii) Universal Serial Bus (USB) messages with, and provide power to, a USB device over a USB connection with the USB device;
receiving a USB power request from the USB device that specifies a power-related parameter for use by the USB device;
converting the received USB power request to a PoE power request that specifies the power-related parameter;
sending the PoE power request to the PSE;
receiving a PoE response from the PSE that indicates acceptance of the sent PoE power request;
converting the received PoE response to a USB response; and
sending the USB response to the USB device.
1 Assignment
0 Petitions
Accused Products
Abstract
A Network-Universal Serial Bus (NUSB) adaptor exchanges Power-over-Ethernet (PoE) packets with, and receives power from, a Power Source Equipment (PSE) over a PoE connection with the PSE, and exchanges Universal Serial Bus (USB) messages with, and provides power to, a USB device over a USB connection with the USB device. The NUSB adaptor converts between a USB power negotiation protocol implemented between the USB device and the NUSB adaptor and a PoE power negotiation protocol implemented between the NUSB adapter and the network device.
18 Citations
23 Claims
-
1. A method comprising:
-
at a Network-Universal Serial Bus (NUSB) adaptor to exchange (i) Power-over-Ethernet (PoE) packets with, and receive power from, a Power Source Equipment (PSE) over a PoE connection with the PSE, and (ii) Universal Serial Bus (USB) messages with, and provide power to, a USB device over a USB connection with the USB device; receiving a USB power request from the USB device that specifies a power-related parameter for use by the USB device; converting the received USB power request to a PoE power request that specifies the power-related parameter; sending the PoE power request to the PSE; receiving a PoE response from the PSE that indicates acceptance of the sent PoE power request; converting the received PoE response to a USB response; and sending the USB response to the USB device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An apparatus comprising:
-
a PoE interface to connect with a Power Source Equipment over a PoE connection; a USB interface to connect with a USB device over a USB connection; a controller coupled to the PoE and USB interfaces, to; receive a USB power request from the USB device that specifies a power-related parameter for use by the USB device; convert the received USB power request to a PoE power request that specifies the power-related parameter; send the PoE power request to the PSE; receive a PoE response from the PSE that indicates acceptance of the sent PoE power request; convert the received PSE response to a USB response that indicates the acceptance; and send the USB response to the USB device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A system comprising:
-
a power source equipment (PSE); a Universal Serial Bus (USB) device; and a Network-USB (NUSB) adaptor to connect with the PSE over a PoE connection and with the USB device over a USB connection, wherein; the NUSB adaptor and the USB exchange USB messages with each other over the USB connection using a USB power negotiation protocol; the NUSB adaptor and PSE exchange PoE packets with each other over the PoE connection using a PoE power negotiation protocol; the NUSB adaptor converts (i) messages from the USB to the PoE power negotiation protocol to convey a power request from the USB device to the PSE, and (ii) packets from the PoE to the USB power negotiation protocol to convey a power request acknowledgement from the PSE to the USB device; the PSE provides power to the NUSB adaptor responsive to the power request; and the NUSB adaptor forwards the power received from the PSE to the USB device. - View Dependent Claims (20, 21, 22, 23)
-
Specification