U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Inter-LAN connection apparatus and inter-LAN connection method

Patent 5151897 Issued on September 29, 1992. Estimated Expiration Date: Icon_subject February 6, 2011. 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.

Patent References

Re33426

Bridge circuit for interconnecting networks
Patent #: 4597078
Issued on: 06/24/1986
Inventor: Kempf

Interconnection of communications networks
Patent #: 4627052
Issued on: 12/02/1986
Inventor: Hoare ,   et al.

Local area network bridge
Patent #: 4715030
Issued on: 12/22/1987
Inventor: Koch ,   et al.

Local area network bridge
Patent #: 4737953
Issued on: 04/12/1988
Inventor: Koch ,   et al.

Network adapter for connecting local area network to backbone network Patent #: 4933937
Issued on: 06/12/1990
Inventor: Konishi

Inventor

Application

No. 651570 filed on 02/06/1991

US Classes:

370/401Bridge or gateway between networks

Examiners

Primary: Olms, Douglas W.
Assistant: Blum, Russell W.

Attorney, Agent or Firm

International Class

H04J 003/08

Foreign Application Priority Data

1990-03-20 JP

Abstract

An inter-LAN connection apparatus and a method for increasing the speed of communication and to expand the network. The inter-LAN connection apparatus has a plurality of ports corresponding to a plurality of LANs, respectively, and a common unit that is commonly connected to the ports. Each of the ports receives a frame supplied from the corresponding LAN, aborts the frame when the destination picked up from the received frame exists in the LAN that is the source of transmission, transfers the frame to the common unit when the destination exists in the LAN different from the LAN that is the source of transmission, and sends the frame transferred from the common unit to the LAN via a corresponding port.

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