Multiplex communications – Duplex – Communication over free space
Reexamination Certificate
2005-10-11
2005-10-11
Pezzlo, John (Department: 2662)
Multiplex communications
Duplex
Communication over free space
C370S252000, C709S209000
Reexamination Certificate
active
06954438
ABSTRACT:
A master-slave switch method for reversing roles between nodes in a network environment when the traditional role reversal functionality as defined by the network specification is not implemented within the node is presented. A data terminal which does not support the traditional master-slave switch functionality, progresses as far as establishing an asynchronous connectionless (ACL) connection. The LAN access point then request a role switch, when the reversal of roles fails, the connection is aborted with device addresses of the participating entities being stored. The LAN access point then initiates the reestablishment of the connection in a master role with the data terminal assuming a slave role after verification of the device address of the LAN access point.
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Gratton Dean Anthony
Hickman Graeme
Moore David J.
Morley Kenneth S.
Thomas Nick
3Com Corporation
Pezzlo John
Workman Nydegger
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