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Portable phone capable of being switched into hearing aid function

  • US 20050288057A1
  • Filed: 06/23/2004
  • Published: 12/29/2005
  • Est. Priority Date: 06/23/2004
  • Status: Active Grant
First Claim
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1. A portable phone capable of being switched into hearing aid function and having a circuit board disposed therein and a central processing unit disposed on said circuit board, and said central processing unit being coupled to the following components for a signal transmission:

  • a screen, disposed at an appropriate position on a casing of said portable phone;

    a plurality of press buttons, disposed at an easy-to-operate position on said casing of said portable phone;

    a sound receiving unit, for receiving an analog signal transmitted from a surrounding environment within a finite range;

    an analog/digital converting unit, for converting a received audio signal selectively into an analog signal and a digital signal;

    a data processing unit, for appropriately amplifying the volume of said digital signal and filtering noises;

    a sound playback unit, for playing an analog signal with an amplified volume; and

    a toggle unit, for toggling between a hearing aid function and a telephone function.

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