Mapper for high data rate signalling

Details Mapper for high data rate signalling Mapper for high data rate signalling

1998-08-28

2000-09-05

Bocure, Tesfaldet

Pulse or digital communications

Transceivers

Modems

375242, H04L 516, H04L 1404

Patent

active

061154156

ABSTRACT:
A pulse amplitude modulated (PAM) mapper includes a constellation matrix memory which stores indications of a plurality of different constellations. The constellations are stored as masks of one hundred twenty-eight bits where a bit set to one indicates that the constellation includes the PCM code represented by the corresponding .mu.-law code.

REFERENCES:
patent: 4924516 (1990-05-01), Bremer et al.
patent: 5031195 (1991-07-01), Chevillat et al.
patent: 5305352 (1994-04-01), Calderbank et al.
patent: 5394437 (1995-02-01), Ayanoglu et al.
patent: 5406583 (1995-04-01), Dagdeviren
patent: 5428643 (1995-06-01), Razzell
patent: 5528625 (1996-06-01), Ayanoglu et al.
patent: 5544328 (1996-08-01), Seshadri
patent: 5774500 (1998-06-01), Zagakis et al.
ITU-T Recommendation V.34, Sep. 1994, "Data Commuication Over the Telephone Network".
"The Capacity of PCM Voiceband Channels", Kalet, et al., IEEE Intern'l Conference on Communications'93, pp. 507-511.
"A Mathematical Theory of Communication". Bell Systems Technical Journal, 27:379-423, 623-656.

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