Failure detector circuit, failure detection system, and method
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorNaoei Terasawa
Life of this patent
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Abstract
A failure detector circuit of one embodiment acquires a first signal while transmitted from a first circuit to a second circuit and acquires a second signal while transmitted from the second circuit to a third circuit. The second circuit is located between the first circuit and the third circuit and transmits, to the third circuit, as the second signal, the first signal or a third signal having a given fixed state. The failure detector circuit outputs a fourth signal indicating detection or non-detection of a failure in the second circuit, in accordance with the first signal and the second signal.
Claims20
A failure detector circuit that:
- acquires a first signal while transmitted from a first circuit to a second circuit and acquires a second signal while transmitted from the second circuit to a third circuit, the second circuit that is located between the first circuit and the third circuit and transmits, to the third circuit, as the second signal, the first signal or a third signal having a given fixed state, and
- outputs a fourth signal indicating detection or non-detection of a failure in the second circuit, in accordance with the first signal and the second signal.
A failure detection system, comprising:
- a first circuit that outputs a first signal;
- a second circuit that outputs, as a second signal, the first signal or a third signal having a given fixed state;
- a third circuit that operates by the second signal;
- and
- a failure detector circuit that acquires the first signal and the second signal, and outputs a fourth signal indicating detection or non-detection of a failure in the second circuit, in accordance with the first signal and the second signal.
A method comprising:
- acquiring a first signal while transmitted from a first circuit to a second circuit and acquiring a second signal while transmitted from the second circuit to a third circuit, the second circuit that is located between the first circuit and the third circuit and transmits, to the third circuit, as the second signal, the first signal or a third signal having a given fixed state;
- and
- outputting a fourth signal indicating detection or non-detection of a failure in the second circuit, in accordance with the first signal and the second signal.
Dependencies are inferred from the claim text.