A TELEGRAPH SIGNAL RECEIVING ARRANGEMENT FOR PERFORMING DETECTION AND PROCESSING OF SIGNALS ON INCOMING TELEGRAPH LINES

摘要

The invention concerns improvements to telegraph character receiving systems in which a control block is designed to perform both the transition or change detecting operation on a plurality of lines and the transition processing operation. The control block will initially be switched into the transition detecting operation wherein it scans the lines to detect transitions, upon detection of at least one transition, a switching circuit operates and switches the control block into the transition processing operation wherein it operates to reconstitute the characters whereto each transition belongs. When the processing of the transition is completed, the switching circuit operates anew and again switches the control block into the transition detection operation. The alternate operating process enables the use, for transition processing operations, of a large proportion of the circuits used for the transition detecting operations, and thereby economical utilization of the equipment.