×

Method and apparatus for enhancing remote audio monitoring in security systems

  • US 5,400,011 A
  • Filed: 01/18/1994
  • Issued: 03/21/1995
  • Est. Priority Date: 01/18/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A security system for monitoring a premises from a monitoring center at a remote location, comprising:

  • at least one sensor for detecting the occurrence of an event at said premises;

    at least one microphone at said premises, said microphone producing a live audio signal;

    local recording means for recording an audio signal corresponding to said live audio signal;

    detector means at said premises for receiving said live audio signal from said microphone, for detecting the occurrence of a sound in said live audio signal, and for producing an indication of said occurrence of said sound;

    a local control unit at said premises for establishing a communication link with said monitoring center in response to said detection of the occurrence of an event, for transmitting said indication of said occurrence of said sound to said monitoring center, and for transmitting an audio signal produced by a selected audio source;

    a central control unit at said monitoring center for communicating with said local control unit over said established communication link, for receiving said indication of said occurrence of said event, and for receiving said indication of said occurrence of said sound;

    indication means at said monitoring center connected to said central control unit for providing a perceptible indication of said occurrence of said sound;

    source selection means at said monitoring center connected to said central control unit for selecting an audio source from a group comprising said at least one microphone and said local recording means; and

    a speaker at said monitoring center connected to said central control unit for reproducing sound from said selected audio source.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×