Telephone switching system

Details Telephone switching system Telephone switching system

1976-12-09

1978-05-02

Robinson, Thomas A.

179 16F, H04M 322

Patent

active

040876454

ABSTRACT:
A telephone switching system utilizing matrices composed of monolithic chips which include a plurality of cross points and controls therefor. The lines and trunks attached to the unique matrices include unique circuitry, such as two-way amplifiers, which compress the signals going into the matrices, but amplify the signals coming out of the matrices. The unique combination of the matrix signal amplitude compressing two-way amplifiers and monolithic chip matrices enables effective utilization of micro-processors for controlling the selection of paths through the matrix on a space division system.

REFERENCES:
patent: 3213391 (1965-10-01), Kovaleski et al.
patent: 3406357 (1968-10-01), Garcia et al.
patent: 3892925 (1975-07-01), Fisk et al.
patent: 3965436 (1976-06-01), Dixon

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