公开(公告)号：US2886798A

公开(公告)日：1959-05-12

申请号：US57577456

申请日：1956-04-03

Applicant: IBM

Inventor： WALKER ROBERT M

IPC: G11C11/16

CPC classification number: G11C11/16

公开(公告)号：US3020489A

公开(公告)日：1962-02-06

申请号：US78270658

申请日：1958-12-24

Applicant: IBM

Inventor： WALKER ROBERT M ,  SCHLIG EUGENE S

IPC: G11C11/44 ,  H01L39/00 ,  H03F19/00

CPC classification number: H01L39/00 ,  G11C11/44 ,  H03F19/00 ,  Y10S505/855 ,  Y10S505/857 ,  Y10S505/863

公开(公告)号：US2891153A

公开(公告)日：1959-06-16

申请号：US54192255

申请日：1955-10-21

Applicant: IBM

Inventor： WALKER ROBERT M

IPC: H01J31/06 ,  H03K17/88 ,  H04J3/04

CPC classification number: H04J3/045 ,  H01J31/06 ,  H03K17/88

公开(公告)号：US2718629A

公开(公告)日：1955-09-20

申请号：US44859254

申请日：1954-08-09

Applicant: IBM

Inventor： ANDERSON ARTHUR G ,  HORTON JOHN W ,  WALKER ROBERT M

IPC: G11C11/16

CPC classification number: G11C11/16

公开(公告)号：US3018958A

公开(公告)日：1962-01-30

申请号：US60797056

申请日：1956-08-31

Applicant: IBM

Inventor： WALKER ROBERT M ,  ANDERSON ARTHUR G ,  ROSENHEIM DONALD E

IPC: G06F7/52

CPC classification number: G06F7/525

公开(公告)号：US2832061A

公开(公告)日：1958-04-22

申请号：US48737855

申请日：1955-02-10

Applicant: IBM

Inventor： GARWIN RICHARD L ,  WALKER ROBERT M

IPC: G11C11/16

CPC classification number: G11C11/16

公开(公告)号：US2543650A

公开(公告)日：1951-02-27

申请号：US7957649

申请日：1949-03-04

Applicant: IBM

Inventor： WALKER ROBERT M

IPC: G06G7/34

CPC classification number: G06G7/34

公开(公告)号：CA605148A

公开(公告)日：1960-09-13

申请号：CA605148D

Applicant: IBM

Inventor： WALKER ROBERT M ,  ANDERSON ARTHUR G ,  ROSENHEIM DONALD E

公开(公告)号：CA589673A

公开(公告)日：1959-12-29

申请号：CA589673D

Applicant: IBM

Inventor： WALKER ROBERT M ,  GARWIN RICHARD L

IPC: G11C11/16

Abstract: 817,475. Reactance valve circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 8, 1956 [Feb. 10, 1955], No. 3940/56. Class 40 (5). [Also in Group XIX] In a circuit for decreasing the frequency of a 30 mc/s signal steadily by 4 kc/s per milli-second over a period of 3 milli-seconds, a variable reactance triode 63 forms part of the tank circuit of a Clapp oscillator, the output of which is fed to three doubling stages 50, 51, 52. Oscillation is initiated by a negative signal on a control lead 57, and as a result conduction in the triode is decreased and the frequency of the oscillator lowered. The circuit is described as part of a spin-echo storage system (.see Group XIX).

公开(公告)号：CA571997A

公开(公告)日：1959-03-10

申请号：CA571997D

Applicant: IBM

Inventor： WALKER ROBERT M ,  ANDERSON ARTHUR G ,  HORTON JOHN W