Interface unit and communication system having a...

Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus access regulation

Reexamination Certificate

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C710S306000, C709S251000

Reexamination Certificate

active

08001306

ABSTRACT:
An interface unit is provided for a communication system comprising a master unit and a plurality of slave units serially connecting the master unit via a double ring structure comprising a first communication path and a second communication path. The interface unit comprises a first switching unit, which is configured to output information signals received by the master unit as a first information signal to the first communication path and as a second information signal to the second communication path; and a second switching unit, which is configured to forward the first information signal circulating on the first communication path and second information signal circulating on the second communication path to the master unit.

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