Document retrieval system employing a preloading procedure

  • US 5,715,445 A
  • Filed: 06/07/1995
  • Issued: 02/03/1998
  • Est. Priority Date: 09/02/1994
  • Status: Expired due to Fees
First Claim
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1. A system for retrieving information comprising:

  • (a) a many-user database that is capable of being accessed by more than one user, wherein numerous documents are stored within the database; and

    (b) a computer comprising a memory unit, a monitor for displaying information to a user, an input device, and a connection to the many-user database, and wherein the computer is running a multi-tasking operating system and is programmed to;

    retrieve a first document from the many-user database over the connection to the many-user database, wherein the text of the first document contains a reference to a second document and also a reference to a third document, wherein the text of the second document contains a reference to a fourth document, and wherein all four documents include textual information,display the first document on the monitor,preload in the background at least a portion of the second document into the memory unit while the user is viewing the first document, and before the second document is requested by the user through the input device,preload in the background at least a portion of the third document into the memory unit while the user is viewing the first document, and before the third document is requested by the user through the input device,display the second document when the second document is requested by the user through the input device, wherein the second document is displayed by retrieving the second document from the memory unit, and by retrieving from the database any portion of the second document not preloaded into the memory unit,delete from the memory unit the portion of the third document stored in the memory unit,preload in the background at least a portion of the fourth document into the memory unit while the user is viewing the second document, and before the fourth document is requested by the user through the input device, anddisplay the fourth document when the fourth document is requested by the user through the input device, wherein the fourth document is displayed by retrieving the fourth document from the memory unit, and by retrieving from the database any portion of the fourth document not preloaded into the memory unit.

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