发明名称 |
Half-duplex echo canceler training using a pilot signal |
摘要 |
A far-end modem transmits a "pilot tone" during the time that a near-end modem is training its echo canceler. Correspondingly, the near-end modem is modified to notch, or filter, out this pilot tone from the received signal. The filtered received signal is then used by the near-end modem to train its echo canceler.
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申请公布号 |
US5828657(A) |
申请公布日期 |
1998.10.27 |
申请号 |
US19950536916 |
申请日期 |
1995.09.29 |
申请人 |
PARADYNE CORPORATION |
发明人 |
BETTS, WILLIAM LEWIS;HAZEN, RAMON B.;SCOTT, ROBERT EARL |
分类号 |
H03H17/02;H04B3/23;H04B7/015;H04B7/26;(IPC1-7):H04J15/00 |
主分类号 |
H03H17/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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