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Hierarchical data store with look-ahead action

  • US 4,086,629 A
  • Filed: 06/28/1976
  • Issued: 04/25/1978
  • Est. Priority Date: 07/09/1975
  • Status: Expired due to Term
First Claim
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1. A data storage system comprising a main store, a slave store of smaller size but faster access time than the main store, means responsive to a set of store access commands for accessing data items from the slave store, each said store access command having a store access address associated with it, and look-ahead logic comprising:

  • a. means responsive to one of a sub-set of said store access commands to generate an increment signal,b. means for adding said increment signal to said store access address to produce a look-ahead address, andc. means for applying the look-ahead address to the main store to access a data item from the main store for writing into the slave store.

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