Boots – shoes – and leggings
Patent
1992-01-14
1994-01-18
Shaw, Dale M.
Boots, shoes, and leggings
395550, 364242, G06F 13372, G06F 13376
Patent
active
052806286
ABSTRACT:
For controlling an original interruption request produced in each of peripheral units (12-1 to 12-N), the peripheral units are connected to an interruption control line (20) in common. When the original interruption request is produced, the peripheral unit in question continuously supplies an interruption control signal to the interruption control line unless the interruption control line is already supplied with the interruption control signal from other peripheral units. A timer circuit (23) of the peripheral unit in question times a preselected time interval from a time instant at which the peripheral unit in question begins to supply the interruption control signal to the interruption control line. The timer circuit suspends its operation while an interruption request line (10) is supplied with an interruption request signal from other peripheral units. When the time interval is timed, the peripheral unit in question continuously supplies the interruption request signal to the interruption request line. The time intervals of the timer circuits of the peripheral units are different from each other.
REFERENCES:
patent: 4090239 (1978-05-01), Twibell et al.
patent: 4159516 (1979-06-01), Henrion et al.
patent: 4792890 (1988-12-01), Blair et al.
patent: 5168568 (1992-12-01), Thayer et al.
patent: 5193193 (1993-03-01), Iyer
Dinh D.
Nitsuko Corporation
Shaw Dale M.
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