Lock processing system

Details Lock processing system Lock processing system

1991-12-23

1992-12-29

Fleming, Michael R.

Boots, shoes, and leggings

3642468, 364230, 364DIG1, 3649692, 364DIG2, G06F 1314

Patent

active

051758610

ABSTRACT:
A lock processing system which judges locking requests from a plurality of processors. The lock processing system contains two system control units. Locking or unlocking information is transferred between the two system control units. The lock processing system stores the information transferred between the two system control units and judges whether there is a conflict for locking or unlocking. The lock processing system dispenses with hardware otherwise needed for transferring between system control units.

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patent: 4480304 (1984-10-01), Carr et al.
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patent: 4587609 (1986-05-01), Boudreau et al.
patent: 4805106 (1989-02-01), Pfeifer
patent: 4937733 (1990-06-01), Gillett, Jr. et al.
patent: 4984153 (1991-01-01), Kregness et al.

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