Hybrid photonic-electronic subscriber access unit for connecting

Details Hybrid photonic-electronic subscriber access unit for connecting Hybrid photonic-electronic subscriber access unit for connecting

1994-02-17

1995-07-04

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 84, 370 941, 359123, 359125, H04J 1400

Patent

active

054307228

ABSTRACT:
This subscriber access unit includes an electronic subscriber line interface circuit (1) whose functions include: cell header translation, routing label addition and bit rate control (policing). It further includes concentrators (2) including electronic statistical time-division multiplexing devices (34.1, . . . , 34.16) and electronic periodic time-division demultiplexing devices (47.1, . . . , 47.16) and a photonic wavelength-division multiplexing and bit rate changing device (38), a photonic periodic time-division multiplexing without wavelength-division multiplexing device (40), a photonic bit rate conversion and wavelength-division demultiplexing device (43) and a photonic periodic time-division demultiplexing and wavelength-division multiplexing device (41). This structure optimizes use of photonic technology and electronic technology to achieve a minimal implementation cost.

REFERENCES:
patent: 4873681 (1989-10-01), Arthurs et al.
patent: 4939721 (1990-07-01), De Bosio
patent: 4956839 (1990-09-01), Torii et al.
patent: 5276676 (1994-01-01), Horn et al.
patent: 5319484 (1994-06-01), Jacob et al.

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