Boots – shoes – and leggings
Patent
1983-05-16
1988-03-22
Zache, Raulfe B.
Boots, shoes, and leggings
G06F 1100
Patent
active
047333669
ABSTRACT:
Logic circuitry for use in electrical apparatus for providing an interrupt signal to a controller when there is a power failure in the electrical apparatus. The logic circuitry is connected to a bus from the controller. When the logic circuitry receives a power failure signal, it sets an interrupt state register and provides an interrupt signal on the bus as long as the interrupt state register is set. If the power failure signal no longer indicates a power failure, the logic circuitry responds to a signal from the controller indicating that the interrupt has been received by resetting the interrupt state register, thereby ending the interrupt. However, if the power failure signal is still active, the logic circuitry will not reset the interrupt state register in response to the signal from the controller. The logic circuitry is incorporated into a system having a plurality of individual electrical apparatuses, each of which is capable of generating an interrupt signal when it detects a power failure in itself, and a plurality of controllers, each controller having an associated bus connected to each individual apparatus such that the system can be configured to allow any selected one of said controllers to be connected to and control any selected one of said apparatuses. The logic circuitry receives the power failure signal from the selected apparatus, provides the interrupt signal to the appropriate controller and resets the interrupt state register under control of the controller if the power failure signal from the selected apparatus is no longer present.
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DeYesso Joseph P.
Gershenson Edward
Joseph Paul F.
Lemone Louis A.
Lippitt Mark C.
Data General Corporation
Munteanu Florin
Zache Raulfe B.
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