Crosspoint switching array

Details Crosspoint switching array Crosspoint switching array

1988-01-04

1989-04-04

Caldwell, Sr., John W.

Communications: electrical

Continuously variable indicating

With meter reading

34082591, 307241, H04Q 900

Patent

active

048189880

ABSTRACT:
A crosspoint switching array of a matrix of crosspoint switches connected in rows and columns. Each crosspoint switch includes an MOS inverter circuit for propagating a digital signal from crosspoint-to-crosspoint along its row. Each crosspoint switch includes a first MOS switch connected to the preceding crosspoint switch in the column and a second MOS switch connected to its row. The second switch is activated to connect the row to the column at a particular crosspoint. Otherwise, the first switch is activated to connect the crosspoint switch to the preceding crosspoint switch in the column. The output of the first or second switch is applied to an MOS inverter circuit for driving the following crosspoint switch in the column.

REFERENCES:
patent: 3715444 (1973-02-01), Pearlman
patent: 3818203 (1974-06-01), Perlowski et al.
patent: 4011543 (1977-03-01), Soref et al.
patent: 4051358 (1977-09-01), Schwartz
patent: 4453096 (1984-06-01), LeCan et al.
patent: 4758745 (1988-07-01), Elgamal et al.

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