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:
Jun. 26, 2007
Filed:
Nov. 02, 2005
Takuya Ishida, Sapporo, JP;
Yoshiyuki Kamihara, Sapporo, JP;
Takuya Ishida, Sapporo, JP;
Yoshiyuki Kamihara, Sapporo, JP;
Seiko Espon Corporation, Tokyo, JP;
Abstract
A data transfer control device including a buffer is provided which includes an EParea (a data storage area set to FIFO) and a CSW area (a randomly accessible status storage area), when data and a CSW are allocated as information to be transferred through one end point EPWhen a phase has switched from a USE data phase (data transport) to a status phase (status transport), the information read area is switched from the EParea to the CSW area. and IN data to be transferred from the end point EPto a host is read from the CSW area. A CSWarea for success status and a CSWarea for non-success status are provided, and a status block packet in which is set either success or non-success default information is previously written therein.