Abstract: A sounder for use in mobile apparatus comprising an electronic signal generator and a electroacoustic transducer to generate an audible sound, wherein the sound comprises continuous repetitions of a pre-determined section of substantially broadband sound.
Type:
Application
Filed:
August 26, 2010
Publication date:
June 20, 2013
Applicant:
Brigade Electronics Plc
Inventors:
Christopher Hanson-Abbott, Hubert Geoffrey Leventhall, Kelly Sands
Abstract: A reversing alarm for a vehicle emits an audible signal in the form of pulses of broad band sound when the vehicle is put into reverse gear. The broad band sound allows persons in the vicinity to locate the vehicle, as the human brain is able to process broad band sound to pinpoint the location of the sound source in a way which is not possible with single tone sounds. The alarm is implemented via a simple electronic circuit which uses a zener diode as a signal generator 20 to generate the broad band sound.
Type:
Grant
Filed:
March 19, 2002
Date of Patent:
April 26, 2005
Assignees:
Brigade Electronics Plc, Yamaguchi Electric Ind. Co. Ltd.
Inventors:
Christopher Hanson-Abbott, Masato Yamashita
Abstract: A reversing alarm for a vehicle emits an audible signal in the form of pulses of broad band sound when the vehicle is put into reverse gear. The broad band sound allows persons in the vicinity to locate the vehicle, as the human brain is able to process broad band sound to pinpoint the location of the sound source in a way which is not possible with single tone sounds. The alarm is implemented via a simple electronic circuit which uses a zener diode as a signal generator 20 to generate the broad band sound.
Type:
Grant
Filed:
April 26, 2007
Date of Patent:
May 27, 2014
Assignees:
Yamaguchi Electric Ind. Co. Ltd., Brigade Electronics PLC
Inventors:
Christopher Hanson-Abbott, Masato Yamashita