One example system for detecting an emergency siren comprises a microphone device, a band pass filter operably coupled to the microphone device and configured to filter sound data from the microphone device to produce filtered sound data, a phase lock loop circuit configured to phase filter the filtered sound data to produce phase filtered data, and a processor configured to determine a presence of a siren signal from the phase filtered data.


    Access

    Download


    Export, share and cite



    Title :

    Phase Lock Loop Siren Detection


    Contributors:

    Publication date :

    2022-09-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme



    Phase Lock Loop Siren Detection

    BALACHANDRAN GANESH | European Patent Office | 2023

    Free access

    Phase lock loop siren detection

    BALACHANDRAN GANESH | European Patent Office | 2022

    Free access

    Phase lock loop siren detection

    BALACHANDRAN GANESH | European Patent Office | 2023

    Free access


    Detection and classification of siren signals and localization of siren signal sources

    JUGAL BUDDHADEV / RAJESH K VENKATESWARAN / ALOK SHARMA et al. | European Patent Office | 2022

    Free access