公开(公告)号：US3193691A

公开(公告)日：1965-07-06

申请号：US86162259

申请日：1959-12-23

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: H03K3/286 ,  H03K3/30 ,  H03K3/45

CPC classification number: H03K3/286 ,  H03K3/30 ,  H03K3/45

公开(公告)号：US3290517A

公开(公告)日：1966-12-06

申请号：US32044463

申请日：1963-10-31

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: H03K19/08 ,  H03K19/10

CPC classification number: H03K19/0813 ,  H03K19/10

Abstract: 1,028,650. Semi-conductor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 30, 1964 [Oct. 31, 1963], No. 39742/64. Heading H3T. [Also in Division G4] A threshold circuit for comparing an input voltage with a decreasing ramp voltage comprises a pair of diodes 16, 18, the junction 14 of which is at the lower voltage as shown in Fig. 2. When the ramp voltage becomes less than the input voltage a signal is passed via capacitor 62 to switch a tunnel diode and cause transistor 68 to give an output at 72. A number of threshold circuits 100, 102, 104 are arranged in Fig. 3 to indicate, by comparison with a ramp voltage from a common generator 106, which of a number of signals is the highest. The first circuit to respond sends a pulse to single-shot 110 to enable gates 112, 114, 116 passing the threshold circuit signal to a corresponding latch 118, 120, 122. The output from the latch activates an indicator 124, 126 or 128.

公开(公告)号：US3200257A

公开(公告)日：1965-08-10

申请号：US1869060

申请日：1960-03-30

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: H03K3/315

CPC classification number: H03K3/315

公开(公告)号：US3519844A

公开(公告)日：1970-07-07

申请号：US3519844D

申请日：1966-12-23

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: H03K19/14 ,  H03K19/10

CPC classification number: H03K19/14

公开(公告)号：US3117304A

公开(公告)日：1964-01-07

申请号：US6681960

申请日：1960-11-02

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: G06F1/10 ,  G06F9/32 ,  G11C11/38 ,  H03K3/315 ,  H03K5/15 ,  H03K17/58

CPC classification number: G06F9/30 ,  G06F1/10 ,  G11C11/38 ,  H03K3/315 ,  H03K5/15046 ,  H03K17/58

公开(公告)号：US3461441A

公开(公告)日：1969-08-12

申请号：US3461441D

申请日：1965-10-22

Applicant: IBM

Inventor： AKMENKALNS IVARS G ,  GAMBLIN RODGER L ,  LORD PHILIP A

IPC: G11C11/06 ,  G11B5/62

CPC classification number: G11C11/0605

公开(公告)号：US3029351A

公开(公告)日：1962-04-10

申请号：US78176458

申请日：1958-12-19

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: H01H1/60

CPC classification number: H01H1/605 ,  Y10T307/924

公开(公告)号：US3015740A

公开(公告)日：1962-01-02

申请号：US78176958

申请日：1958-12-19

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: H03K17/74

CPC classification number: H03K17/74

公开(公告)号：US3417249A

公开(公告)日：1968-12-17

申请号：US33441963

申请日：1963-12-30

Applicant: IBM

Inventor： AKMENKALNS IVARS G ,  WILFINGER RAYMOND J ,  WILSON ALAN D

IPC: H01L31/173 ,  H03K17/94

CPC classification number: H01L31/173 ,  H03K17/941

公开(公告)号：US3382378A

公开(公告)日：1968-05-07

申请号：US36271664

申请日：1964-04-27

Applicant: IBM

Inventor： AKMENKALNS IVARS G

IPC: H03K5/003

CPC classification number: H03K5/003