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:
Mar. 24, 2015
Filed:
Aug. 22, 2013
GM Global Technology Operations Llc, Detroit, MI (US);
Susan T. Carruthers, Ann Arbor, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An electric vehicle pedestrian warning system includes an encapsulating container disposed in a location of an electric vehicle (EV) that is exterior to a cabin of the EV. The warning system also includes a speaker affixed to an interior portion of the container, an amplifier coupled to the speaker, a computer processor communicatively coupled to the amplifier, and logic executable by the computer processor. The logic is configured to transmit a sound file to the speaker through the amplifier over a vehicle network upon activation of the EV. The sound file includes a pedestrian warning sound. A first portion of the pedestrian warning sound is output by the speaker and amplified using acoustical properties of the encapsulating container. The first portion of the pedestrian warning sound is amplified in a low frequency range capable of being cancelled by an active noise cancellation system that is located in the interior cabin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile