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. 06, 2004
Filed:
Dec. 03, 1998
Fataneh F. Ghodrat, Fort Collins, CO (US);
Michael R. Stein, Fort Collins, CO (US);
David A. Thomas, Fort Collins, CO (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
Isochronous data transfers guarantee data packets are received at a particular frequency and within a prespecified jitter-tolerance. Asynchronous data transfers guarantee data integrity by allowing missed or errant packets to be resent as many times as needed until an error-free packet may be reconstructed at the receiver. Isochronous transfers address real-time needs but do not address the data integrity issue. Asynchronous transfers address the data integrity issue but cannot guarantee error-free data packets will be available so as to meet a real-time constraint. The present invention provides method and apparatus enable isochronous data transfers with improved data integrity. Various link layer and transaction layer mechanisms are taught. An embodiment involving the IEEE 1394 bus specification is addressed in detail.