公开(公告)号：US3564426A

公开(公告)日：1971-02-16

申请号：US3564426D

申请日：1969-01-22

Applicant: GEN TIME CORP

Inventor： ANDERSON WILMER C ,  CRUGER RICHARD

IPC: G04F1/00 ,  H03K23/66 ,  H03K21/32

CPC classification number: H03K23/665 ,  G04F1/005

Abstract: A PRESET TIMER SYSTEM INCLUDING A TIMER WHICH NORMALLY COUNTS AT A REAL TIME RATE AND PROVIDES AN ACTUATION UPON REACHING A FULL COUNT, AND AN ASSOCIATED PRESETTER WHICH SUPPLIES PULSES TO THE TIMER AT A COMPRESSED NON-REAL TIME RATE. SWITCHES ARE SELECTIVELY SET BY THE OPERATOR TO INDICATE THE DESIRED TIMER INTERVAL, AND THESE SWITCHES ARE SO CONNECTED TO ELECTRONIC DECIMAL COUNTERS THAT, WHEN THE TIMER IS PRESET, A NUMBER OF PULSES IS SUP-

LIED TO THE TIMER WHICH IS THE COMPLEMENT OF THE DESIRED TIMER INTERVAL.