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United States Patent [w]

Hosemann

US006160795A [ii] Patent Number: [45] Date of Patent:

6,160,795 Dec. 12, 2000

[54] NETWORK COMMUNICATION

[75] Inventor: Axel Hosemann, Rosstal, Germany

[73] Assignee: Siemens Aktiengesellschaft, Munich, Germany

[21] Appl. No.: 09/401,023 [22] Filed: Sep. 21, 1999

Related U.S. Application Data

[63] Continuation of application No. PCT/DE98/00840, Mar. 23, 1998.

[30] Foreign Application Priority Data

Mar. 21, 1997 [DE] Germany 197 11 958

[51] Int. CI.7 H04L 12/56; H04B 3/54

[52] U.S. CI 370/256; 370/401; 370/408

[58] Field of Search 370/254, 255,

370/256, 400, 401, 408

[56] References Cited

U.S. PATENT DOCUMENTS

4,987,536 1/1991 Humblet 370/256

5,029,334 7/1991 Braun .

5,289,460 2/1994 Drake, Ir. et al 370/256

5,386,466 1/1995 Bales et al 370/256

5,428,636 6/1995 Meier 370/256

5,606,669 2/1997 Bertin et al 370/256

5,784,557 7/1998 Oprescu 370/256

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WO 95/01030

Published International Application No.
(Farnsworth et al.), dated Jan. 5, 1995.

Primary Examiner—Ricky Ngo

Attorney, Agent, or Firm—Herbert L. Lerner; Laurence A. Greenberg; Werner H. Sterner

[57] ABSTRACT

A method for communication in a network, in particular for communication in an electrical low voltage network, transmits a status check from a master to a plurality ol slaves in several network paths. A slave that cannot be directly accessed by the master, such as an additionally installed salve, is included in the network with the help of a neighboring slave. The neighboring slave is used as a router slave for the slave that cannot be directly accessed. For this purpose, a network management software for the master is provided with a software module for assigning at least one router slave to each slave. Each slave is assigned a corresponding software module to identify a neighboring slave as a potential router slave. A network for communication is also provided.

11 Claims, 4 Drawing Sheets

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