Time division multiplex transferring system capable of increasin

Details Time division multiplex transferring system capable of increasin Time division multiplex transferring system capable of increasin

1997-04-24

1999-12-14

Pham, Chi H.

Multiplex communications

Channel assignment techniques

Adaptive selection of channel assignment technique

370468, H04L 1250

Patent

active

060026901

ABSTRACT:
In a time division multiplex transferring system which uses fixed setting, on-demand, and frame relay bandwidths, a first time switch allocates the on-demand and frame relay bandwidths in response to a first allocation setting datum to produce two output signals. A second time switch allocates the on-demand and frame relay bandwidths in response to a second allocation setting datum to produce two output signals. A bandwidth allocation controlling device produces and renews the first and second allocation setting data in response to the connectivity restriction to produce and transmit a first allocation change datum to a counter node. The bandwidth allocation controlling device thereafter produces a first allocation end signal in response to a second allocation end signal from the counter node. The bandwidth allocation controlling device renews the first and second allocation setting data in response to a second allocation change datum from the counter node and thereafter produces and supplies the first allocation end signal to the counter node. A bandwidth switch controlling device produces a first switch signal in response to the first allocation end signal and produces a second switch signal in response to a second switch bit. A selector selects and transmits one of the output signals of the time switches in response to the first and second switch signals, respectively.

REFERENCES:
patent: 5638371 (1997-06-01), Raychaudhuri
patent: 5675576 (1997-10-01), Kalampoukas
patent: 5684791 (1997-11-01), Raychaudhuri
patent: 5825766 (1998-10-01), Kobayashi et al.
patent: 5850398 (1998-12-01), King, Jr.
Office action issued by the Japanese patent office on Oct. 20, 1998 and an english translation therefor.

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