G - Physics – 06 – F
Patent
G - Physics
06
F
354/233
G06F 9/28 (2006.01) G06F 9/38 (2006.01) G06F 9/46 (2006.01)
Patent
CA 1214568
-36- ABSTRACT OF THE DISCLOSURE CONTROLLER FOR CONTROLLING ACCESS TO A PLURALITY OF RECORDS THAT CAN BE ACCESSED AND CHANGED BY SEVERAL INDEPENDENT PROCESSORS A controller for controlling access to a plurality of records that can be accessed and changed by several independent processors comprises: a plurality of flip-flops corresponding in number to the plurality of records with each flip-flop representing a particular record; a means for receiving a programmable control word from any of the processors which identifies multiple records of which access is sought; a means for selecting in parallel and logically ANDing output signals from all of those flip-flops which correspond to the identified records; a means for sending a signal, if the ANDing operation yields a logical ONE, to the processor which sent the control word signaling that it may access and change the identified records; a means for setting in parallel via a single pulse all of those flip-flops which correspond to the identified records if the ANDing operation yields a logical ONE; and a means for storing the control word if the ANDing operation yields a logical ZERO.
459420
Fassbender Charles J.
Burroughs Corporation
R. William Wray & Associates
LandOfFree
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