Patent · US Active

Geographically smoothed demographic cartograms and cartogram server

US9934362B2 · kind B2 · utility

0Cited by
1References
29Claims
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Assignee

Inventor

Key dates

Filing dateJun 1, 2015
Grant dateApr 3, 2018
Priority date—
Expiry dateAug 2, 2035

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG16Z99/00
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A contiguous cartogram is distorted proportionally to demographic data associated with geographical areas. The cartogram is associated with an underlying data set (such as health indication data or epidemiological data) that is geographically smoothed to avoid meshing and border effects, and shaded according to a predetermined shading scale. The cartogram may be stacked with other cartograms associated with underlying data sets collected at different times to form a chronological cartogram slideshow to illustrate changes in the underlying data set over time. The chronological cartogram slideshows may be transmitted from a map server via a communications interface to a requesting client.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.