Title:
等化器フィルタのタップ係数を発生するための方法および装置
Document Type and Number:
Japanese Patent JP2008519558
Kind Code:
A
Abstract:
A method and apparatus generating an error signal and an update vector signal used to generate filter tap coefficients for an equalizer filter residing in an equalizer. The equalizer filter outputs an equalized signal in response to receiving a sample data stream. The error signal is generated by down-sampling the equalized signal, subtracting the equalized signal from a reference signal, and filtering and down-sampling the resulting signal. Simultaneously, the update vector signal is generated by converting scalar samples of the sample data stream to a data vector signal and descrambling, filtering, and down-sampling the data vector signal. A tap coefficients generator is used to generate the filter tap coefficients for updating the equalizer filter based on the error signal and the update vector signal.
Inventors:
Philip J. Pietraski
Mikhail Berli
Mikhail Berli
Application Number:
JP2007540331A
Publication Date:
June 05, 2008
Filing Date:
October 18, 2005
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H04B7/005; H03H17/00; H03H17/06; H03H21/00; H04B3/06; H04L27/01
Domestic Patent References:
| JP2003281831A | 2003-10-03 | |||
| JP2005175775A | 2005-06-30 | |||
| JPH06326559A | 1994-11-25 | |||
| JP2004326952A | 2004-11-18 | |||
| JP2000115581A | 2000-04-21 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe