The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Apr. 06, 2005
Daniel Paul Peters, Carlsbad, CA (US);
Stephan Walter Gehring, Menlo Park, CA (US);
Jason Lee Ellis, San Diego, CA (US);
Satish Ananthakrishnan, San Diego, CA (US);
Daniel Paul Peters, Carlsbad, CA (US);
Stephan Walter Gehring, Menlo Park, CA (US);
Jason Lee Ellis, San Diego, CA (US);
Satish Ananthakrishnan, San Diego, CA (US);
General Atomics, San Diego, CA (US);
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.