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:
Jul. 29, 2003
Filed:
Jun. 07, 1999
Keith M. Evans, San Jose, CA (US);
Kevin P. Grundy, Fremont, CA (US);
Craig B. Owens, San Carlos, CA (US);
Hughes Electronics Corporation, El Segundo, CA (US);
Abstract
A switching device and method for selecting among a plurality of hosts on a bus, such as a Universal Serial Bus (USB). The switching device includes a first hub to be coupled to first host controller and a second hub to be coupled to second host controller. A first selection device is to be coupled to a first peripheral device and the first and second hub devices. The first selection device is to selectively couple the first peripheral device to one of the first and second host devices in response to a selection signal. A second selection device is to be coupled to a second peripheral device and the first and second hub devices. The second selection device is to selectively couple the second peripheral device to one of the first and second host controllers in response to the selection signal. The selection signal is generated in response to one of the host controllers. During the switching process among the host controllers and peripheral devices, a cable disconnect and reconnect between the host controllers and peripheral devices is emulated.