Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2007-08-28
2007-08-28
Wong, Don (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
Reexamination Certificate
active
10730694
ABSTRACT:
Content-based addressing is used to navigate forward, backward and in a circular fashion through documents in a content space. To enable backward navigation, a descriptor file is created for a new version that contains not only a message digest for the new version, but also a message digest of the older document. A message digest is created for the descriptor file. A user navigates backward starting with the message digest of the descriptor file. To enable forward navigation, a mapping table maps a message digest of an older document into the message digest of the new version. A high-level descriptor file contains the message digest of the original document and the message digest of the mapping table. The message digest of the high-level descriptor file is returned to the user. A user navigates forward starting with the high-level descriptor file message digest. To enable circular navigation, a mapping table maps a message digest of a second document into a message digest of a version of the second document containing a message digest of a first document. The techniques are combined to allow navigation through a complex content space.
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Applicant: Hypertrust NV; PCT; International Search Report; Int'l Filing Date Sep. 12, 2003; Int'l Apl. No.: PCT/IB 03 / 05749.
Carpentier Paul R. M.
Willems Maarten J. P. A.
Winters Joris
Beyer & Weaver, LLP
Caringo, Inc.
Lie Angela M
Wong Don
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