Title: Peak detector using automatic threshold control and method therefor
Application Number: 98104066 Application Date: 1998.02.06
Publication Number: 1204772 Publication Date: 1999.01.13
Approval Pub. Date: 2004.02.25 Granted Pub. Date: 2004.02.25
International Classifi-cation: G01R5/00
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name: Soichi Iwamura;Jin-Kyu Jeon
Attorney & Agent: sun lubeng
Abstract:
    A peak detector for a maximum likelihood decoding system, using an automatic threshold control (ATC), and a method therefor are provided. In the peak detector, positive and negative peak values are detected from an input signal having digital information, based on positive and negative threshold values, and then each threshold value is detected according to positive and negative values of the input signal, to reset each threshold value to a predetermined value based on the detected peak value having the opposite polarity thereto. Accordingly, data can be detected exactly, improving performance of Viterbi decoding.
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