Method of storing a topological network, and methods and apparat

Details Method of storing a topological network, and methods and apparat Method of storing a topological network, and methods and apparat

1991-10-01

1998-05-19

Lintz, Paul R.

Boots, shoes, and leggings

395615, 3644491, 3644494, 3644495, 340990, 340995, G06F 1730

Patent

active

057548463

ABSTRACT:
A topological network, comprising a set of 0-cells (nodes) (28, 29) interconnected by a set of 1-cells (aa, bb, . . . , gg).sub.1 is divided into sections (E, F, G) corresponding to discrete parcels of data for storage in a mass memory such as a CD-ROM. A boundary node (28, 29) is defined at each point where the network traverses a boundary between sections. The parcel of data for a given section includes a chain list record for each 1-cell in the section, which chain list record generally refers directly (TP) to a further 1-cell in the network terminating at the same node. However, no chain list record refers directly to a 1-cell outside the section of the network to which the data parcel relates. An indirect reference (0-C') across the section boundary can be made easily, while an overall saving in data volume is obtained compared with a known method. Further information can be introduced into the data parcels by ordering techniques, enabling the network data to be used in a particularly efficient and systematic manner.

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