Resources Contact Us Home
Inter-channel communication in a multi-channel digital hearing instrument

Image Number 3 for United States Patent #8121323.

A multi-channel digital hearing instrument is provided that includes a microphone, an analog-to-digital (A/D) converter, a sound processor, a digital-to-analog (D/A) converter and a speaker. The microphone receives an acoustical signal and generates an analog audio signal. The A/D converter converts the analog audio signal into a digital audio signal. The sound processor includes channel processing circuitry that filters the digital audio signal into a plurality of frequency band-limited audio signals and that provides an automatic gain control function that permits quieter sounds to be amplified at a higher gain than louder sounds and may be configured to the dynamic hearing range of a particular hearing instrument user. The D/A converter converts the output from the sound processor into an analog audio output signal. The speaker converts the analog audio output signal into an acoustical output signal that is directed into the ear canal of the hearing instrument user.

  Recently Added Patents
Method and system for providing intelligent call rejection and call rollover in a data network
System and method for supporting fibre channel over ethernet communication
Steplessly adjustable cymbal locating device
Method and apparatus for performing real time anomaly detection
Method and apparatus for generating soft bit values in reduced-state equalizers
Can seam inspection
Card reader device
  Randomly Featured Patents
Canopy for juvenile playyard
Porous ventricular catheter
Dripless purification manifold and cartridge
Power reduction in time-space switches
Image forming device that performs reverse-transfer operation in accordance with image forming condition
Adjustable auxiliary seat or similar article
Combination skylight/static ventilator
Method for planarizing local interconnects
Enhanced rapid real time kinematics determination method and apparatus
Plastics multi-blade variable-pitch rotor