DSL modem apparatus and initialization method for DSL...

Details DSL modem apparatus and initialization method for DSL... DSL modem apparatus and initialization method for DSL...

2007-04-03

2007-04-03

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Transceivers

Modems

C375S146000, C375S147000, C375S219000, C375S295000, C375S316000

Reexamination Certificate

active

10404072

ABSTRACT:
An ADSL modem apparatus including an IFFT unit that performs an inverse fast Fourier transform on transmission data, an FFT unit that performs a fast Fourier transform on reception data, and a processor that performs an initialization sequence according to a protocol, is provided. During the initialization sequence, the processor maintains and enables an interleave memory to be employed. After data transmission is initiated, the processor instructs a switch controller so that an interleave unit and de-interleave unit can use the interleave memory.

REFERENCES:
patent: 5751741 (1998-05-01), Voith et al.
patent: 6771697 (2004-08-01), Goldstein et al.
patent: 2001/0022810 (2001-09-01), Joo
patent: 2002/0008256 (2002-01-01), Liu
patent: 2002/0196874 (2002-12-01), Tomita et al.
patent: 2003/0223459 (2003-12-01), Tomita et al.
patent: 2003/0223483 (2003-12-01), Noma et al.
patent: 2000-0034006 (2000-06-01), None
patent: 01/10105 (2001-02-01), None
English Language Abstract of KR 2000-0034006.

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