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. 25, 2008
Filed:
Mar. 04, 2003
Nobuyuki Saito, Sapporo, JP;
Hiroaki Shimono, Sapporo, JP;
Takuya Ishida, Sapporo, JP;
Yoshiyuki Kamihara, Sapporo, JP;
Kenyou Nagao, Sapporo, JP;
Nobuyuki Saito, Sapporo, JP;
Hiroaki Shimono, Sapporo, JP;
Takuya Ishida, Sapporo, JP;
Yoshiyuki Kamihara, Sapporo, JP;
Kenyou Nagao, Sapporo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A transaction is automatically issued with respect to one of end points and data is automatically transferred while the remaining data size of the transfer data is calculated based on the total size and the maximum packet size. When the remaining data size in the current transaction is less than the maximum packet size, the next transaction is issued automatically, and a short packet is transferred automatically to nest one of the end points. When the payload size of the packet to be transferred by the current transaction is the maximum packet size and the remaining data size of the transfer data is zero, a short packet of zero data length is transferred automatically to the next one of the end points. When DMA transfer is complete and the remaining data to be transferred is zero, a short packet of zero data length is transferred automatically in response to an IN token from a host. Data transfer according to USB On-The-Go is performed.