Patent · US Active

Device for imparting distance information

US8610879B2 · kind B2 · utility

25Cited by
2References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 3, 2013
Grant dateDec 17, 2013
Priority date—
Expiry dateJun 3, 2033

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61H2201/5097
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Disclosed are methods and devices for imparting distance information to a human subject, for example a visually-impaired subject.

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