System for addressed timemultiplexed telecommunication

Details System for addressed timemultiplexed telecommunication System for addressed timemultiplexed telecommunication

H - Electricity

04

J

363/22, 344/25

H04J 3/12 (2006.01) H04Q 1/38 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1039867

Abstract of the Disclosure. A system for addressed timemultiplexed telecommunication comprising subscribers apparatus which address selector supplies voltage levels which in a central are converted to binary form and stored in address shift registers. Taken out of the registers the addresser's and addressee's addresses are converted to analogue form and compared with a step voltage from a step voltage generator, and the result of the com- parison controls analogue switches which make the connection between the addresser and the addressee and break the connection when addresser or addressee presses an off-button.

227084

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