Journal of Electrical and Electronic Engineering

Volume 2, Issue 6, December 2014

  • New Delta Sigma Modulator Structure Using Second Order Filter in One Stage Technique

    M. Dashtbayazi, M. Sabaghi, M. Rezaei, S. Marjani

    Issue: Volume 2, Issue 6, December 2014
    Pages: 82-88
    Received: 18 December 2014
    Accepted: 6 January 2015
    Published: 14 January 2015
    Abstract: In this paper, a new structure of delta sigma modulator has been proposed in which a second order filter in one stage technique has been taken into the account and a second order noise shaping method and a third order one have been designed by the proposed idea. In the proposed structure an OPAMP has been saved and since in a conventional delta sig... Show More
  • Embedded System for Speech Recognition and Image Processing

    Zhengxi Wei, Jinming Liang

    Issue: Volume 2, Issue 6, December 2014
    Pages: 89-93
    Received: 16 December 2014
    Accepted: 23 December 2014
    Published: 6 February 2015
    Abstract: In recent years, the products of voice terminal and image retrieval show the intelligentized trend, but the mature commodities are rare in the market. This paper presents an embedded design method of intelligent voice terminal based on pattern recognition. The design adopts Samsung S3C2410 ARM as target board, Philips Uda1341TS as audio codec, embe... Show More