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:
Jun. 07, 1983
Filed:
May. 28, 1981
Robert L Carbrey, Boulder, CO (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
A loop network is disclosed in which the ports have access to time slots on each of two buses. The buses carry the time slots in opposite directions. Ports are addressed by marking a bit of a time slot word on one bus and a bit of a time slot word on the other bus so that the two marked bits will arrive within a predetermined number of bit intervals of each other at the addressed port. Time slots are seized by an upstream port writing a predetermined pattern into an arriving idle time slot and by the downstream port recognizing the arrival of that predetermined pattern. A time slot may be reused during the remainder of its passage around the loop after it is rendered idle by the downstream port of a connection.