System and method for training a plurality of equalizers and a m

Details System and method for training a plurality of equalizers and a m System and method for training a plurality of equalizers and a m

1997-05-13

2000-07-11

Pham, Chi H.

Pulse or digital communications

Equalizers

Automatic

375232, H03H 730, H03H 740, H03K 5159

Patent

active

060883898

ABSTRACT:
A system and method for training a plurality of equalizers to recognize a plurality of symbols in a received signal, the plurality of equalizers deriving intermediate symbols from the received signal as a function of at least one filter coefficient, the system including 1) a phase detection circuit that determines a phase error between at least one intermediate symbol and at least one symbol in a predetermined constellation of symbols, and 2) a coefficient modification circuit that modifies at least one filter coefficient of the plurality of equalizers as a function of the phase error to cause the at least one intermediate symbol to converge toward a symbol in the predetermined constellation of symbols as the phase error approaches zero, the intermediate symbols being substantially equal to the predetermined constellation of symbols when the phase error is equal to zero. The system or method may be employed in a modulator/demodulator (MODEM) to enhance the communication of digital data through an analog transmission medium.

REFERENCES:
patent: 4430743 (1984-02-01), Watanabe
patent: 4709374 (1987-11-01), Farrow
patent: 5084902 (1992-01-01), Aotani et al.
patent: 5245611 (1993-09-01), Ling et al.
patent: 5297165 (1994-03-01), Ueda et al.
patent: 5311546 (1994-05-01), Paik et al.
patent: 5386239 (1995-01-01), Wang et al.
patent: 5418817 (1995-05-01), Richter
patent: 5495203 (1996-02-01), Harp et al.
patent: 5506871 (1996-04-01), Hwang et al.
patent: 5598434 (1997-01-01), Kaku et al.
patent: 5602602 (1997-02-01), Hulyalkar
patent: 5610948 (1997-03-01), Ninomiya et al.
patent: 5694423 (1997-12-01), Larsson et al.
patent: 5710792 (1998-01-01), Fukawa et al.
patent: 5805637 (1998-09-01), Hirosaka et al.
patent: 5881110 (1999-03-01), Cochran
patent: 5886748 (1999-03-01), Lee

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