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:
Jan. 30, 2001
Filed:
Dec. 30, 1997
William L. Quackenbush, Palo Alto, CA (US);
Hon Wah Chin, Palo Alto, CA (US);
Roland G. Chan, Mountain View, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A lossless arbitration scheme combines IEEE 802.3 compliant Medium Access Controllers (MACs) with a centralized arbiter and out of band access control signaling to achieve a spatially confined LAN that looks to attached devices like an IEEE 802.3 LAN, but has no bandwidth loss due to collisions, no excessive collisions and greater short term access fairness than standard Carrier Sense Multiple Access with Collision Detection (CSMA/CD) LANs. Two such spatially confined LANs are combined with an IEEE 802.3 compatible full-duplex point to point link to provide communication between two spatially confined groups of devices without bridges and buffering even when the separation of the groups is not spatially confined.