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:
Mar. 10, 2020
Filed:
Oct. 04, 2017
Mcci Corporation, Ithaca, NY (US);
Terrill M. Moore, Trumansburg, NY (US);
MCCI Corporation, Ithaca, NY (US);
Abstract
Apparatus and methods for a USB hub connected to USB host and one or more USB devices to support the USB host and the USB devices to dynamically switch roles such that a product which initially operates as a USB device operates a USB host while a USB host supports additional operation as a USB device. Products such as smartphones, initially operating as USB devices, may dynamically switch roles to become USB hosts. Similarly USB hosts, such as PCs and in-vehicle infotainment systems, initially operating as USB hosts may dynamically support additional operation as USB devices. The USB host operates a USB device stack over a USB host stack such that the USB device stack communicates with a role-switched USB host via the root port that remains in a state acting as USB host. In addition, the USB host maintains a connection to an upstream port of the USB hub.