The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Jun. 22, 2023
Applicant:
Waymo Llc, Mountain View, CA (US);
Inventor:
Ganesh Balachandran, Mountain View, CA (US);
Assignee:
Waymo LLC, Mountain View, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/087 (2006.01); G08B 1/08 (2006.01); G08G 1/0965 (2006.01); G08G 1/0967 (2006.01);
U.S. Cl.
CPC ...
G08G 1/087 (2013.01); G08B 1/08 (2013.01); G08G 1/0965 (2013.01); G08G 1/096791 (2013.01);
Abstract
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.