Time division switch

Details Time division switch Time division switch

1994-01-12

1995-11-14

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 582, 371 204, 371 212, 371 216, H04L 1226

Patent

active

054673402

ABSTRACT:
A time division switch for digital exchange systems that includes speech data storage device to store digitally coded speech data transmitted on the data highway, control data storage device to store control data for control of input/output of speech data at the speech data storage device, address generation device to generate sequential addresses to read/write data for said speech data storage device and said control data storage device, write device to write data to said speech data storage device according to the sequential addresses generated by said address generation device, read device to read data from said speech data storage device according to the control data stored in said control data storage device and test execution device to switch between normal mode for processing of said speech data and test mode to check for any failure in said speech data storage device and said control data storage device.

REFERENCES:
patent: 3909562 (1975-09-01), Lager
patent: 5077744 (1991-12-01), Trainer et al.
patent: 5117393 (1992-05-01), Miyazawa et al.
patent: 5305331 (1994-04-01), Sato et al.

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