公开(公告)号：US2855539A

公开(公告)日：1958-10-07

申请号：US58107256

申请日：1956-04-27

Applicant: BELL TELEPHONE LABOR INC

Inventor： HOOVER JR CHARLES W

IPC: G11C11/23 ,  G11C13/04 ,  H03M1/00

CPC classification number: G11C11/23 ,  G11C13/04 ,  H03M1/32

公开(公告)号：US2855540A

公开(公告)日：1958-10-07

申请号：US58107356

申请日：1956-04-27

Applicant: BELL TELEPHONE LABOR INC

Inventor： HOOVER JR CHARLES W ,  KETCHLEDGE RAYMOND W

IPC: G11C11/23 ,  G11C13/04 ,  H03M1/00 ,  H04B14/04

CPC classification number: H04B14/044 ,  G11C11/23 ,  G11C13/04 ,  H03M1/32

公开(公告)号：US2903598A

公开(公告)日：1959-09-08

申请号：US57389656

申请日：1956-03-26

Applicant: BELL TELEPHONE LABOR INC

Inventor： HOOVER JR CHARLES W

IPC: G11C13/04

CPC classification number: G11C13/04

公开(公告)号：US3145368A

公开(公告)日：1964-08-18

申请号：US85304359

申请日：1959-11-16

Applicant: BELL TELEPHONE LABOR INC

Inventor： HOOVER JR CHARLES W

IPC: G11C11/42 ,  G11C13/04

CPC classification number: H04N3/15 ,  G11C11/42 ,  G11C13/04 ,  G11C13/042 ,  G11C13/048

Abstract: 935,366. Electroluminescent devices. WESTERN ELECTRIC CO. Inc. Oct. 27, 1960 [Nov. 16, 1959], No. 36879/60. Class 39 (1). [Also in Group XIX] The selected row and column conductors of an electroluminescent device 41 are subjected to different frequencies f1, f2, the resulting light being applied to a corresponding area 48 on a storage device with areas of differing opacity, the light passing through the storage device being applied to light-sensitive means 43 with an output 47 which is responsive only to the sum or difference of the said frequencies #1+#2 or #1-#2. A number of frequencies #2-#4 may be applied to different column conductors, Fig. 7, whereby several areas in a row may be read simultaneously at outputs 77-79. Specification 789,660 is referred to.