US 2006/0156186 A1 · Intercommunicating apparatus for duplex system capable of detecting failure thereof

Abstract

A parity generating circuit in a 0 side receives input signals on respective signal lines and produces a parity bit based on the input signals. A parallel/serial converting circuit multiplexes parallel signals (or input signals) and the parity bit into a serial signal with reference to a timing signal. A serial/parallel converting circuit in a 1 side reproduces parallel signals and a parity signal and produces a parity check timing signal. A parity checking circuit checks a parity of the parallel signals by the use of the parity signal. If normal, a state holding circuit holds outputs of the parity checking circuit as a state signal. If abnormal, held content of the state holding circuit is cleared.

Claims16

Dependent claims

A method for transmitting a plurality of intercommunicating signals parallel to one another from a first processor unit to a second processor unit of a duplex processor apparatus, said method comprising the steps of:

changing said intercommunicating signals supplied from said first processor unit into a serial signal having a redundancy data structure;
reproducing said intercommunicating signals in the form of parallel signals from said serial signal;
and
supplying the reproduced intercommunicating signals to said second processor unit.

1 more element

accepting said intercommunicating signals, together with a parity signal based on the intercommunicating signals;
changing said intercommunicating signals supplied from said first processor unit and said parity signal into a serial signal having a redundancy data structure;
reproducing said intercommunicating signals and said parity signal in the form of parallel signals from said serial signal;
and
supplying the reproduced intercommunicating signals to said second processor unit, said parity signal not being supplied to said second processor unit.

2 more elements

Dependencies are inferred from the claim text.

Intercommunicating apparatus for duplex system capable of detecting failure thereof

Life of this patent

Intercommunicating apparatus for duplex system capable of detecting failure thereof

Life of this patent

Abstract

Claims16