Patent · US Expired

Voice activated vehicle alarm system

US6028509A · kind A · utility

38Cited by
12References
11Claims
0Family size

Inventor

Key dates

Filing dateMar 18, 1998
Grant dateFeb 22, 2000
Priority date
Expiry dateMar 18, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08B21/02
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

An alarm system for the interior of a vehicle utilizing a temperature sensor measuring the interior temperature of the vehicle and producing a signal when a certain level of temperature is reached. A sound detector also produces a second signal representative of a certain sound intensity within the interior of the vehicle. An AND gate circuit receives the signals from the temperature sensor and the sound detector and generates an output signal. Alarm means is triggered by the output signal of the AND gate circuit.

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