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 for releasing a locking in mobile terminal and mobile terminal using the same
Electronic device
Timing and cell specific system information handling for handover in evolved UTRA
Proximity-based mobile message delivery
Electrode binder composition, electrode slurry, electrode, and electrical storage device
High-speed comparator with asymmetric frequency response
Process for producing dipeptides or dipeptide derivatives
  Randomly Featured Patents
Freewheel clutch with a cage for receiving and retaining the gripping elements
Computer-implemented method for evaluating an investment
Railroad track lubricant
Wrap-around pants
Method and apparatus for performing intra closed subscriber group handover
Battery box
Catalytic converter
Guiding catheter shaft with improved radiopacity on the wire braid
Regulating check valve and fuel injecton valve having the same
Two-cycle engine lubricant composition comprising an ester copolymer and a diester