Patent · US Expired

Ergonomic digitizer stylus

US4707571A · kind A · utility

9Cited by
3References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 29, 1986
Grant dateNov 17, 1987
Priority date
Expiry dateOct 29, 2006

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F3/03545
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A handheld stylus for a digitizer includes a tip that is angled downward to meet the digitizing surface at almost, but not quite, a right angle. The body of the stylus is of a generally triangular cross section. Mounted upon the stylus are pushbutton switches actuatable by a force along a line essentially at right angles to the digitizing surface when the stylus is in use. An anti-rolling winged member keeps the stylus from rolling when it is laid over on its top after use.

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