Digital switch array

Details Digital switch array Digital switch array

1997-06-20

1999-06-29

Horabik., Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082503, 340826, 34087579, 34082585, 34082586, 34082587, 34082588, 34082589, 370363, 370369, 370376, 370378, H04Q 1104

Patent

active

059174277

ABSTRACT:
A digital switch array, includes a serial input bus providing a plurality of input streams, each defining a plurality of time division multiplexed input channels, a serial output bus providing a plurality of output streams, each defining a plurality of time division multiplexed output channels, and an array of digital switches arranged in rows and columns. Each row is connected to a respective group of input streams and each column is connected to a respective group of output streams. The digital switches are capable of performing timeslot interchange between any input and any output channel. Each digital switch includes an enabling device for each output timeslot so that when the enabling device is enabled the associated output timeslot is driven, and at least first and second enabling inputs which when simultaneously activated cause the enabling device to become enabled. An array of activation lines are arranged in rows and columns. The respective rows of activation lines are connected to the first enabling inputs of each row of the digital switches and the respective columns of activation lines are connected to the second enabling inputs of each column of the digital switches. A selected row and column of the activation lines can be simultaneously activated so that the enabling device of the digital switch whose first input is connected to the activated row and whose second input is connected to the activated column becomes enabled.

REFERENCES:
patent: 4545053 (1985-10-01), Raamot
patent: 4674083 (1987-06-01), Rackin
patent: 5327421 (1994-07-01), Hiller et al.

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