公开(公告)号：US3509380A

公开(公告)日：1970-04-28

申请号：US3509380D

申请日：1966-10-26

Applicant: IBM

Inventor： GILLETT JOHN B ,  HALLETT MICHAEL H

IPC: H03K3/012 ,  H03K3/12

CPC classification number: H03K3/012

公开(公告)号：US3599191A

公开(公告)日：1971-08-10

申请号：US3599191D

申请日：1969-04-30

Applicant: IBM

Inventor： GILLETT JOHN B

IPC: B29C37/00 ,  G11C7/00 ,  G11C11/14 ,  G11C5/02

CPC classification number: B29C37/00 ,  G11C7/00

Abstract: A magnetic film memory is non-destructively interrogated by applying an oscillatory signal of frequency f to a selected word line. Output data signals of frequency 2f are generated on the bit lines as a result, the phase of which is characteristic of the information stored. Superimposed on each data signal is a capacitive noise signal of frequency f. The composite signal on each bit line is passed to a filter network which separates the capacitive noise component from the data component. The data signal is sampled once per cycle under control of strobe signals generated from the capacitive noise signal. The strobe signals are timed to coincide with a region of maximum fluctuation of the data signal, the sampled signals indicating the phase of the data signal and hence the binary value stored.

公开(公告)号：US3489963A

公开(公告)日：1970-01-13

申请号：US3489963D

申请日：1967-06-16

Applicant: IBM

Inventor： GILLETT JOHN B

IPC: H01L27/00 ,  H01L27/07 ,  H03F3/45 ,  H01L11/00 ,  H01L3/00 ,  H03F3/14

CPC classification number: H03F3/45089 ,  H01L27/00 ,  H01L27/0772 ,  H03F2203/45314 ,  H03F2203/45498 ,  H03F2203/45552 ,  H03F2203/45702 ,  Y10S148/037 ,  Y10S148/085 ,  Y10S148/136

公开(公告)号：CA1266505A

公开(公告)日：1990-03-06

申请号：CA501726

申请日：1986-02-12

Applicant: IBM

Inventor： GILLETT JOHN B ,  SPREEN JAMES H

IPC: H01F30/00 ,  H02M3/28 ,  H03H7/09 ,  H02M3/337 ,  H01F29/00

Abstract: K11332 D.C. TO D.C. CONVERTER A d.c. to d.c. converter system converts a d.c. signal into a pulsating a.c. signal, which is applied to the primary of a power transformer. A transformer in which the primary and secondary windings are planar is employed to generate the output pulse signal. The planar transformer design provides the inductance required to filter the output signal and reduce the ripple therein, while simultaneously providing tight coupling between the primary and secondary windings. A single turn secondary winding is provided to reduce the number of turns in the transformer and thereby reduce the associated power loss.

公开(公告)号：CA1204831A

公开(公告)日：1986-05-20

申请号：CA462293

申请日：1984-08-31

Applicant: IBM

Inventor： GILLETT JOHN B

IPC: H01R24/00 ,  H01R12/70 ,  H01R12/89 ,  H05K7/14 ,  H01R23/70 ,  H01R13/631

Abstract: ACTUATOR FOR ZERO INSERTION FORCE CONNECTORS An actuator for a zero insertion force printed circuit board connector. Two connectors are used in opposing pairs to connect to parallel edges of a printed circuit board. Moving a first actuator mechanism on the first connector moves the printed circuit board toward the opposite connector to a fixed position and then causes a closing/wiping action of the contacts of the first connector. A second actuator mechanism, located on the second connector, has operation substantially identical to that of the first mechanism except the printed circuit board does not move. The two connectors are mechanically substantially identical and the actuation sequence is independent of the handle sequence. Another embodiment for contacting a single edge of a printed circuit board is disclosed wherein one of the aforementioned two connectors is replaced by a simple guideway.