公开(公告)号：US3902101A

公开(公告)日：1975-08-26

申请号：US38202873

申请日：1973-07-23

Applicant: BELL TELEPHONE LABOR INC

Inventor： ANGNER RONALD JOSEPH ,  FEINER ALEXANDER ,  OLSEN MERLE VICTOR

IPC: H01H47/00

CPC classification number: H01H47/001

Abstract: The use of a group of relays, all having only make contacts interconnected in a manner to allow a single current pulse to selectively operate one relay while at the same time releasing all the other relays, has resulted in the design of circuits where a one-hot out-of-n code can be used to control the operational states of the circuits. The fact that the relays have remanent reed sealed contacts and are thus self-latching greatly simplifies minimumization of peripheral equipment and reduces control complexity since a single current pulse can both select the desired circuit state by operating one of the relays and release any other operated relay.