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. 18, 2007
Filed:
May. 18, 2004
Nobuyuki Saito, Sapporo, JP;
Yoshimi Oka, Kitahiroshima, JP;
Kenyou Nagao, Sapporo, JP;
Hironobu Kazama, Shiojiri, JP;
Nobuyuki Saito, Sapporo, JP;
Yoshimi Oka, Kitahiroshima, JP;
Kenyou Nagao, Sapporo, JP;
Hironobu Kazama, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A data transfer control device including: a buffer controller which allocates a plurality of pipe regions in a packet buffer and controls access to the packet buffer; and a transfer controller which controls data transfer between the pipe regions and corresponding endpoints. The transfer controller performs processing of pausing data transfer between the pipe regions and the endpoints, the buffer controller performs reconstruction processing which includes at least one of deletion, addition, and size change of the pipe regions after the completion of the pause processing, and then the transfer controller resumes the paused data transfer after the reconstruction processing of the pipe regions. Data in the pipe regions before the reconstruction processing is copied to the pipe regions after the reconstruction processing while preventing the data from being erased.