Patents Assigned to Yamaguchi Electric Ind. Co. Ltd.
  • Reversing alarm
    Patent number: 6885295
    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
  • Car's back-up alarm fitted with speech function
    Patent number: 4843367
    Abstract: The present invention relates to a car's back-up alarm, and particularly a back-up alarm attachedly provided with a communication function capable of guiding the auto body while the car driver speaking therethrough with person/persons in the outside of the car.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: June 27, 1989
    Assignee: Yamaguchi Electric Ind., Co., Ltd.
    Inventor: Masayuki Saito
  • Reversing alarm
    Patent number: RE44912
    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