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  Clearphone is a multi-purpose health earphone which includes adaptive SNR system and RF receiver. The adaptive SNR system means an environment-aware power management system. By using this scheme, clearphone can save power automatically according to where it is used. And with RF receiver on a chip, clearphone can be used as cordless earphone.

Blocks for Clearphone

  - Analog part : Preamplifier, Sigma-delta analog to digital converter, Adaptive SNR control unit

  - Signal processing part : Digital signal processing

  - Digital part : Sigma-delta digital to analog converter

  - RF Part : RF Receiver

System Concept

Related Papers

  - ESSCIRC 06 [pdf]

  - SOVC 06 [pdf]

  - BioCAS 06 [pdf]

  - JSSC 07 [pdf]

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