Multi-user read-ahead memory

Details Multi-user read-ahead memory Multi-user read-ahead memory

1983-10-24

1986-11-04

Thomas, James D.

Boots, shoes, and leggings

365222, G06F 1200, G06F 1216

Patent

active

046213201

ABSTRACT:
A digital computer memory prefetches, or reads ahead, a next sequential, odd, address data word from a backing memory store containing all such odd address data words to a high speed buffer register simultaneously that the memory fetches the immediately preceding, even address data word from a backing memory store containing all such even address data words to that requestor-user, one of selective one(s) of a multiplicity of such requestor-users with which the memory communicates, which is addressably reading such even address data word. Selective one(s) of the requestor-users, which one(s) is (are) predominantly sequential in successive read addressings, does (do) enable such prefetching through a unique signal communicated to the memory. Remaining requestor-users do disable, via the alternative condition of the same signal, any prefetching; causing thereby no disturbance to the priorly read-ahead, odd address, data word. Any requestor-user may addressably read, necessarily at the odd address, the read-ahead data word from the high speed buffer register at a read response time improved from fetching data words from the backing store. Refreshing of a dynamic random access memory backing store is obtained simultaneously with any such read of the read-ahead data word, thereby reducing the time overhead of such refreshing on the productive availability of the memory.

REFERENCES:
patent: 4048623 (1977-09-01), Gruner
patent: 4156905 (1979-05-01), Fassbender
patent: 4157587 (1979-06-01), Joyce
patent: 4172282 (1979-10-01), Aichelmann
patent: 4185323 (1980-01-01), Johnson
patent: 4292674 (1981-09-01), Scheuneman
patent: 4357686 (1982-11-01), Scheuneman
patent: 4424561 (1984-01-01), Stanley
patent: 4438493 (1984-03-01), Cushing
patent: 4439827 (1984-03-01), Wilkes

Affiliated with

Also associated with

Rating

Multi-user read-ahead memory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-user read-ahead memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-user read-ahead memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-699485