Patents Assigned to Gen Engineering Co., Ltd.
  • Hearing aid suitable for use under noisy circumstance
    Patent number: 4409435
    Abstract: A hearing aid in which input signals picked up through a microphone are divided to those of two or more frequency bands by means of a frequency division means, signal outputs of frequency band(s) in which noise signals are included are saturated or reduced by a compensating means such as compression or saturation amplifier, and mixed with signals of other signal of frequency band(s) which are not compensated, whereby ambient noises can be removed from voice sounds.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: October 11, 1983
    Assignee: Gen Engineering Co., Ltd.
    Inventor: Hiroshi Ono