Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent
1996-12-18
1999-09-14
Tsang, Fan S.
Telephonic communications
Subscriber line or transmission line interface
Network interface device
375346, 704216, H04M 158
Patent
active
059534117
ABSTRACT:
Input/output sample correlation is achieved through the use of first and second correlation tags appended to input and output buffers, respectively. As an output buffer of output samples is prepared, the first correlation tag identifies one of tie output samples in that buffer. As input samples are input and placed into an input buffer, a second correlation tag is appended to the input buffer which identifies the input sample that is input at the time the output sample identified by the first correlation tag is output. Accordingly, a correlation between input and output samples can be used in an echo cancellation operation or the like.
REFERENCES:
patent: 4802132 (1989-01-01), Ohsawa
patent: 5193112 (1993-03-01), Sano
patent: 5239646 (1993-08-01), Kimura
patent: 5278872 (1994-01-01), Greenberg
patent: 5371789 (1994-12-01), Hirano
patent: 5390250 (1995-02-01), Janse et al.
patent: 5418321 (1995-05-01), Keller et al.
patent: 5475791 (1995-12-01), Schalk et al.
patent: 5481753 (1996-01-01), Miyake et al.
patent: 5495473 (1996-02-01), Cox
patent: 5517129 (1996-05-01), Matsui
patent: 5535171 (1996-07-01), Kim et al.
patent: 5546395 (1996-08-01), Sharma et al.
patent: 5615390 (1997-03-01), Kurahara
patent: 5692163 (1997-11-01), Fukushima
patent: 5696990 (1997-12-01), Rosenthal et al.
Intel Corporation
Tsang Fan S.
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