Time switch with a dual memory structure-type control memory

Details Time switch with a dual memory structure-type control memory Time switch with a dual memory structure-type control memory

H - Electricity

04

Q

363/17, 354/47

H04Q 11/04 (2006.01) H04Q 11/08 (2006.01)

Patent

CA 1293804

ABSTRACT OF THE DISCLOSURE A time switch with a dual structure-type control memory utilizing a time division time switch. m e switch is equipped with a speech memory unit into which digital signals to be interchanged are temporarily written, and a control memory unit into which addresses to be accessed by the speech memory unit are written. The control memory unit has first and second memories. Each memory has an input/output section connected to a memory controller. The memories are set during hard and soft cycles so that when either one of the memories is set in a hard cycle the other memory is set in a soft cycle. The hard cycle is a speech-control data read-only mode. The soft cycle is a speech-control data read-write mode under control from the corresponding memory controller.

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