Multi purpose digital signal regenerative processing apparatus

Details Multi purpose digital signal regenerative processing apparatus Multi purpose digital signal regenerative processing apparatus

1993-04-23

1994-09-06

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 50, 370 691, 370 953, H04J 1300

Patent

active

053454391

ABSTRACT:
A multi purpose digital signal regenerative processing apparatus (1) has three modulation sub-systems (2, 3 and 4) in parallel. Each sub-system is selectively selectable to enable a plurality of users to access, independently of one another, a sub-band of a frequency band in individually selectable access modes and modulation formats. The first sub-system (1) is operable in TDM format, the second (3) is operable in FDM or OFDM format and the third sub-system (4) is operable in CDM format.

REFERENCES:
patent: 4688210 (1987-08-01), Eizenhofer et al.
patent: 4799252 (1989-01-01), Eizenhoffer et al.
patent: 4905221 (1990-02-01), Ichiyoshi
patent: 5191576 (1993-03-01), Pommier et al.

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