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Digital cell phone with hearing aid functionality

  • US 20050135644A1
  • Filed: 10/19/2004
  • Published: 06/23/2005
  • Est. Priority Date: 12/23/2003
  • Status: Abandoned Application
First Claim
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1. A digital cell phone having hearing aid functionality, comprising:

  • a microprocessor;

    a memory, coupled to the microprocessor, for storing at least one program executable by the microprocessor;

    a key pad, coupled to the microprocessor, for entering alphanumeric information to be processed by the microprocessor;

    a display screen, coupled to the microprocessor, for displaying alphanumeric information received from the microprocessor;

    a radio frequency (RF) antenna, coupled to the microprocessor, for transmitting and receiving RF signals;

    a microphone for receiving sound waves and converting the sound waves into an analog signal;

    an analog-to-digital converter (ADC), coupled to the microphone, for converting the analog signal received from the microphone into a digital data format;

    a digital signal processor (DSP) comprising an encoder for encoding digital data into an RF signal format to be transmitted by the RF antenna and a decoder for decoding digital data received by the RF antenna;

    a hearing loss compensation module, coupled to the DSP, for processing digital data in accordance with a hearing loss compensation algorithm;

    a digital-to-analog converter (DAC), coupled to the hearing loss compensation module, for converting the processed digital data received from the hearing loss compensation module into an analog signal; and

    a speaker, coupled to the DAC, for receiving the analog signal from the DAC and outputting audible sound waves adapted for listening by a hearing impaired user.

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