Patents Assigned to World Access for the Blind
  • Echolocation systems and methods
    Patent number: 9377530
    Abstract: An echolocation device assists visually impaired persons to navigate their environment. The echolocation device comprises a micro control unit, a power source operably connected to the micro control unit, a band pass preamplifier operably connected to the micro control unit, a power amplifier operably connected to the band pass preamplifier, a piezoelectric speaker operably connected to the power amplifier, and a user interface operably connected to the micro control unit. The device emits sound waves that echo off nearby surrounding objects. The visually impaired person listens to the echoes to determine the location or size of the surrounding objects.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 28, 2016
    Assignee: World Access for the Blind
    Inventors: Daniel Kish, Derik DeVecchio
  • Echolocation Systems and Methods
    Publication number: 20140269189
    Abstract: An echolocation device assists visually impaired persons to navigate their environment. The echolocation device comprises a micro control unit, a power source operably connected to the micro control unit, a band pass preamplifier operably connected to the micro control unit, a power amplifier operably connected to the band pass preamplifier, a piezoelectric speaker operably connected to the power amplifier, and a user interface operably connected to the micro control unit. The device emits sound waves that echo off nearby surrounding objects. The visually impaired person listens to the echoes to determine the location or size of the surrounding objects.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: World Access for the Blind
    Inventors: Daniel Kish, Derik DeVecchio