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. 01, 2000
Filed:
Aug. 28, 1997
Robert Simpson, Redland, GB;
Neil Richards, Cheddar, GB;
Peter Thompson, Newport, GB;
Pascal Moniot, Bernin, FR;
Marcello Coppola, Trapani, IT;
Pierre Dumas, Sevres, FR;
Thierry Grenot, Clamart, FR;
David Mouen Makoua, Nanterre, FR;
SGS-Thomson Microelectronics Limited, Almondsbury Bristol, GB;
Abstract
A network of ATM routing switches transmits digital signal cells of a first type requiring integrity of transmission and a second type accepting some loss in transmission, each switch has buffer circuitry. a plurality of output ports each having a plurality of queues of cells awaiting output, each output port having control circuitry to provide in an output frame control bits indicating the type of cell, a path identifier and the existence of flow congestion at the routing switch which it outputting the frame, thereby inhibiting transmission of further frames to that location until a frame is received from that location indicating that the congestion is cleared.