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:
Dec. 14, 1993
Filed:
Aug. 27, 1991
Richard J Proctor, Dorset, GB;
Thomas S Maddern, Dorset, GB;
GPT Limited, , GB;
Abstract
An asynchronous transfer mode switching arrangement includes a serial to parallel converter arranged to receive input packets of data, which include routing information, in serial form and convert the packets of data to parallel form. A first random access memory is provided in which each packet of data is entered at an addressed location into the memory, and the address is entered in a respective first-in first-out output queue at the tail. The address at the head of the queue is accessed and the packet of data is read from the first random access memory into a parallel to serial converter and the packet of data is serially delivered to the associated output. The first random access memory and the output queues are controlled by a memory management arrangement to which is connected a broadcast channel routine second random access memory. The memory management arrangement addresses the broadcast channel routine second random access memory with channel index information, and receives information identifying the required output ports.