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. 23, 2008
Filed:
Feb. 21, 2003
Nobuyuki Saito, Sapporo, JP;
Hiroaki Shimono, Sapporo, JP;
Yoshiyuki Kamihara, Sapporo, JP;
Hironobu Kazama, Sapporo, JP;
Nobuyuki Saito, Sapporo, JP;
Hiroaki Shimono, Sapporo, JP;
Yoshiyuki Kamihara, Sapporo, JP;
Hironobu Kazama, Sapporo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A data transfer control device includes an OTG (state) controller which controls a plurality of states including a host operation state and a peripheral operation state, a host controller which is connected with a transceiver during the host operation, a peripheral controller which is connected with the transceiver during the peripheral operation, a register section including transfer condition registers which are used commonly during the host operation and the peripheral operation, and a buffer controller which controls access to a packet buffer used commonly by the host controller and the peripheral controller. Pipe regions PIPEto PIPEe are allocated in the packet buffer during the host operation, and endpoint regions EPto EPe are allocated in the packet buffer during the peripheral operation.