Switching apparatus for switched network of asynchronous transfer mode

Patent 5339310 Issued on August 16, 1994. Estimated Expiration Date:

March 11, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

ATM switching system
Patent #: 4956839
Issued on: 09/11/1990
Inventor: Torii, et al.

Resequencing system for a switching node
Patent #: 5127000
Issued on: 06/30/1992
Inventor: Henrion

Bit-slice asynchronous transfer mode switching system Patent #: 5189666
Issued on: 02/23/1993
Inventor: Kagawa

Inventor

Taniguchi, Ikuo

Assignee

Nippon Telegraph and Telephone Corporation

Application

No. 849339 filed on 03/11/1992

US Classes:

370/397Employing logical addressing for routing (e.g., VP or VC)

Examiners

Primary: Olms, Douglas W.
Assistant: Ton, Dang

Attorney, Agent or Firm

Staas & Halsey

International Class

H04L 012/56

Foreign Application Priority Data

1991-03-14 JP

Abstract

A switching apparatus for a switched network of the asynchronous transfer mode includes a path inspection control device connected to an input interface board, a switching network, and an output interface board. Cells for path inspection are supplied parallel to the input interface board; routing information is supplied to the switching network; the transmissions of the cells for path inspection are simultaneously switched accordingly; the cells for path inspection are delivered in parallel formation from the output interface board; the cells for path inspection delivered from the output interface board are compared with predetermined comparison data, and the routing information and the cells for path inspection or the comparison data are changed in synchronization with predetermined time signals.