1
Michael E Flynn, Scott Arnold, Stephen J DeLaHunt, Tryggve Fossum, Ricky C Hetherington, David J Webb: Scheme for insuring data consistency between a plurality of cache memories and the main memory in a multi-processor system. Digital Equipment Corporation, Arnold White & Durkee, June 22, 1993: US05222224 (110 worldwide citation)

A method for insuring data consistency between a plurality of individual processor cache memories and the main memory in a multi-processor computer system is provided which is capable of (1) detecting when one of a set of predefined data inconsistency states occurs as a data transaction request is b ...


2
Scott Arnold, James Kann, Stephen J DeLaHunt, Tryggve Fossum: Synchronizing and processing of memory access operations in multiprocessor systems using a directory of lock bits. Digital Equipment Corporation, Arnold White & Durkee, December 29, 1992: US05175837 (75 worldwide citation)

All monitoring and control of locked memory access requests in a multiprocessing computer system is handled by a system control unit (SCU) which controls the parallel operation of a plurality of central processing units (CPUs) and I/O units relative to a common main memory. Locking granularity is de ...


3
Stephen J Delahunt: Data storage unit. International Computers, Lee Smith & Zickert, March 11, 1986: US04575815 (3 worldwide citation)

In a data storage unit, internal timing signals are produced by scanning a writable control memory. Thus, the timing of the storage unit can easily be varied, simply by re-writing the contents of the control memory. This allows the use of a faster clock rate without the necessity for complete redesi ...