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. 07, 2004
Filed:
Nov. 01, 2000
Nobutaka Nakamura, Hidaka, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A PCI-PCI bridge is composed of two physically different controllers, i.e., a primary PCI serial transfer controller arranged at a PC, and a secondary PCI serial transfer controller arranged at a docking station. In data transfer between these controllers, preliminary transmission of block data having a block ID assigned thereto and a return of ACK having the block ID assigned thereto are performed asynchronously. The transmission party can determine which data item is the last the receiving party has received by employing a block ID assigned to NAK. When NAK is received from the receiving party, re-transmission from a block waiting for NAK is started. In this manner, data required to transmit a bus transaction between buses can be transferred accurately and speedily between two controllers.