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:
Sep. 23, 2008
Filed:
Mar. 04, 2003
Nobuyuki Saito, Sapporo, JP;
Shinsuke Kubota, Sapporo, JP;
Kuniaki Matsuda, Sapporo, JP;
Kenyou Nagao, Sapporo, JP;
Nobuyuki Saito, Sapporo, JP;
Shinsuke Kubota, Sapporo, JP;
Kuniaki Matsuda, Sapporo, JP;
Kenyou Nagao, Sapporo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
When transfer condition information is set and the start of automatic control transfer is instructed, a transfer controller (host controller) automatically issues a setup stage transaction and automatically transfers a setup stage packet, then, if there is data to be transferred, it automatically issues a data stage transaction and automatically transfers a data stage packet. It then automatically issues a status stage transaction and automatically transfers a status stage packet. Device request data, the total size of transfer data, data stage present/absent information, transfer direction in the data stage, and maximum packet size are set in transfer condition registers. A pipe region is allocated in the packet buffer during host operation of USB On-The-Go.