Wireless device attachment and detachment system, apparatus and method
US7149834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2005 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Apr 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/3814
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A polling method, apparatus, and system to detect the attachment and detachment of Universal Serial Bus devices in a wireless system. A hub provides a wired connection to the host and wireless attachment points for its devices, The host periodically queries the hub for changes in the hub's status register by sending a polling message through each of its wireless ports, and awaits a response. A peripheral device that wishes to attach to the system responds by sending its unique peripheral address. If a device currently occupies the port, the hub sends out the device's unique address in the polling message. If the device is still present, it responds by sending its unique peripheral address. If a response is not received after multiple retries, the device is considered detached. The hub thus determines the status of the ports and updates the status register, which is queried by the host.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.