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. 03, 2012
Filed:
Mar. 24, 2009
Akio Takamoto, Matsumoto, JP;
Takeshi Yamada, Matsumoto, JP;
Akio Takamoto, Matsumoto, JP;
Takeshi Yamada, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A USB host is provided which can connect to a USB device via a USB hub, the USB host including, a combination storage unit that stores an upgrade allowable combination, for which upgrading of the USB device is allowed, among a combination of hub identification information for identifying the USB hub and device identification information for identifying the USB device; an identification information acquisition unit acquires hub identification information from the USB hub in compliance with USB standards when the USB hub is connected and acquires device identification information from the USB device in compliance with USB standards when the USB device is in connected to the USB hub; and a command transmission unit that transmits an upgrade command to the USB device when a combination of the acquired hub identification information and the acquired device identification information is identical to the combination stored in the combination storage unit.