International Standard Electric Corporation

Roger M Hochreutiner

George A Howells

A time slot interchanging network for use in digital switching. Two shift registers are used, one coupled to receive information from the incoming highway, the other coupled to feed information to the outgoing highway. The shift registers are identical in bit capacity and coupled in parallel. A circulating memory operative at the clock rate of the registers is synchronized with the incoming register to control transfer gates feeding the outgoing register.

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Harlow, United Kingdom

Roger M Hochreutiner