发明授权
US08000383B2 Data reproduction apparatus and method capable of determining level value of viterbi decoder, and computer-readable recording medium having recorded thereon program for implementing the data reproduction method
失效
能够确定维特比解码器的电平值的数据再现装置和方法，以及在其上记录了用于实现数据再现方法的程序的计算机可读记录介质
- 专利标题： Data reproduction apparatus and method capable of determining level value of viterbi decoder, and computer-readable recording medium having recorded thereon program for implementing the data reproduction method
- 专利标题（中）： 能够确定维特比解码器的电平值的数据再现装置和方法，以及在其上记录了用于实现数据再现方法的程序的计算机可读记录介质
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申请号： US11965023申请日： 2007-12-27
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公开(公告)号： US08000383B2公开(公告)日： 2011-08-16
- 发明人: Hyun-soo Park
- 申请人： Hyun-soo Park
- 申请人地址： KR Suwon-si
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： KR Suwon-si
- 代理机构： NSIP Law, PC
- 优先权： KR10-2007-0024207 20070312
- 主分类号： H03H7/30
- IPC分类号： H03H7/30 ; H04L27/06
摘要：
A data reproduction apparatus and method to accurately determine an initial level value of a viterbi decoder regardless of whether an operating frequency is in a stable state, and a recording medium having recorded thereon a program for implementing the data reproduction method, the data reproduction apparatus including: a storage unit to store a first input signal; a frequency detection unit to generate a frequency detection signal indicating that a frequency of the first input signal is detected and frequency information of the first input signal based on a second input signal; and a level value determination unit to detect at least one level value for the first input signal by converting a sampling rate for the first input signal based on a ratio between the frequency information and preset frequency information, and to determine the detected level value as an initial level value of the viterbi decoder.