Patent · US Expired

Distress message signal sending device

US5852401A · kind A · utility

55Cited by
2References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 23, 1997
Grant dateDec 22, 1998
Priority date
Expiry dateJun 23, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S2205/006
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

In a wristwatch type distress message sending device worn by the user, a positional information generator receives GPS signals sent by a plurality of GPS satellites and generates positional information on the latitude and longitude of the position of the user. When the user meets a disaster, a distress message signal generator generates a distress message signal containing the positional information generated by the positional information generator. A sender then sends out the distress message signal by radio.

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