Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-01-06
1995-09-12
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
307 40, 307114, 340313, H04Q 100
Patent
active
054500737
ABSTRACT:
A mechanism for controlling the powering-on and powering-off of control units in a data processing system having a plurality of channels, a plurality of control units, and a communications network of links for linking the channels to the control units. Each control unit includes a power-control table for recording power-control allegiance of the control unit to the channels. Where a control unit receives a power-on command from a channel, it records the identity of the channel in its power-control table. When a channel orders a control unit to power-off, the control unit checks to see if it owes power-control allegiance to the ordering channel. If it does, the control unit deletes the identity from its power-control table. The control unit will not power-off unless its power-control table is empty, indicating that it does not owe allegiance to any other channel.
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IBM Technical Disclosure Bulletin vol. 27, No. 8, Jan. 1985, pp. 4690-4692 "Parallel Interface Switching Mechanism" by Georgiou.
Brown Paul J.
Elliott Joseph C.
Laubli Bernhard
Lynch Kenneth R.
Micka William F.
Augspurger Lynn L.
International Business Machines - Corporation
Marhoefer Laurence J.
Yusko Donald J.
Zimmerman Brian
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