Crosspoint matrix

Details Crosspoint matrix Crosspoint matrix

1992-07-02

1994-10-11

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 54, 34082579, H04Q 1104

Patent

active

053553705

ABSTRACT:
A crosspoint matrix with integrated matte generators includes double buffered internal storage registers which may be serially loaded with mode and selection data to enable the crosspoint matrix to operate in a crosspoint mode wherein a selected input bus is directed to selected output bus. Further, the crosspoint matrix may be operated in a matte generator mode wherein the stored data is supplied to the output bus as a matte signal. The matte signal may be selectively toggled through a series of values to enable operation with both D1 and D2 signals. The data is latched in response to a vertical pulse which enables data values to be written in non-real time as a background task while the actual switch of data is accomplished only upon receipt of a vertical pulse.

REFERENCES:
patent: 4837763 (1989-06-01), Sasaki
patent: 4926423 (1990-05-01), Zukowski
patent: 5130985 (1992-07-01), Kondo et al.

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