Duplexed processor system

Details Duplexed processor system Duplexed processor system

2007-01-09

2007-01-09

Browne, Lynne H. (Department: 2116)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data routing

Least weight routing

C709S201000, C709S202000, C713S375000

Reexamination Certificate

active

10400336

ABSTRACT:
A high-performance and miniaturizable duplexed processor system is provided. In communications between respective corresponding processor units on 0- and 1-system processor cards C0and C1, a sequence number is added to transmission data to assess the continuity of the transmission data, and to thereby retransmit missing data. Also, in communications between processor units on the same processor card, interprocessor connection units PC0and PC1autonomously transfer data. Furthermore, each processor card is equipped with an input/output unit (an input/output switching unit and an input/output interface unit), so that each input/output switching unit IC0and IC1switches input data paths according to operating states of the processor card equipped therewith.

REFERENCES:
patent: 6377979 (2002-04-01), Yamashita et al.
patent: 6446058 (2002-09-01), Brown
patent: 6788648 (2004-09-01), Peterson
Ono, Kazuya et al., “Development of Control Processor for Switching Node”, Communications Society, 2001, p. 130.

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