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:
Feb. 21, 1995
Filed:
Dec. 13, 1993
Robert J Baumert, Allentown, PA (US);
Stephen Barilovits, Charlotte, NC (US);
AT&T Corp., Murray Hill, NJ (US);
Abstract
A hybrid ring network is disclosed having stations capable of transmitting and receiving packet and isochronous data. The ring stations include a latency adjustment buffer (LAB) which stores arriving packet data in one random access memory (PBUF) and both arriving packet and isochronous data in a separate random access memory (IBUF). For retransmission over the ring, packet data is read out only from the PBUF in accordance with the packet's retransmission priority. A LAB may be employed at a slave station and may be pre-programmed with a sufficient latency to compensate for an anticipated insertion or removal of a lobe, without changing the total latency of the ring. When a LAB is employed at a cycle master station the latency of the LAB is controlled by the total ring delay.