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:
Apr. 10, 2012
Filed:
Nov. 25, 2008
Huy Tu Nguyen, Laguna Hills, CA (US);
William C. Wong, Cerritos, CA (US);
Kha Nguyen, Anaheim, CA (US);
Yehua Yang, Las Flores, CA (US);
Huy Tu Nguyen, Laguna Hills, CA (US);
William C. Wong, Cerritos, CA (US);
Kha Nguyen, Anaheim, CA (US);
Yehua Yang, Las Flores, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A method and system for command queuing in disk drives may improve performance by queuing multiple commands and sequentially executing them automatically without firmware intervention. The method may use a number of queues, e.g., a staging queue for commands to be executed, an execution queue for commands currently being executed, and a holding queue for commands which have been executed but have not received a status report from a host. With the pipelined nature of queued commands, when data requested by one command are being sent to the host, the queue logic may already be fetching data for the next command. If an error occurs in the transmission, commands in the queues may backtrack and restart from the point where data were last known to have been successfully sent to the host.