公开(公告)号：FR2356325A1

公开(公告)日：1978-01-20

申请号：FR7716040

申请日：1977-05-17

Applicant: IBM

Inventor： SCHINDLER HANS R ,  VETTIGER PETER

IPC: H04M3/02 ,  H04M3/22 ,  H04M19/02 ,  H04M3/00

Abstract: In an extension line circuit, an off-hook condition is detected during ringing by superimposing in each ringing cycle the values of the line current existing at two sampling instants exactly one-half cycle apart, and testing whether the sum (or mean value) exceeds a given threshold. When DC current starts flowing due to the set going off-hook, the mean value of the two values will pass a threshold.

公开(公告)号：FR2343378A1

公开(公告)日：1977-09-30

申请号：FR7702068

申请日：1977-01-18

Applicant: IBM

Inventor： SCHINDLER HANS R ,  VETTIGER PETER

IPC: H04B3/03 ,  H04B1/58 ,  H04M19/00 ,  H04M1/76

Abstract: This invention comprises a telephone hybrid circuit having two opto-coupler arrangements for transferring voice signals from the two-wire line to a port of the switching system on one hand and from a port of the switching system to the two-wire line on the other hand. In addition, a pair of feeder circuits in the form of current sources comprising active elements are provided for feeding a constant positive direct current to one wire of the two-wire line and a negative direct current of equal magnitude to the other wire of the two-wire line. Each of the current sources includes control circuitry for maintaining a constant ratio between the current furnished by the current source and a control current common to both current sources. A control current path is connected to the output of one of the opto-coupler arrangements for generating a common control current in response to a dc signal and a superimposed voice signal received from a port of the switching system. The other opto-coupler arrangement couples the signals from the two-wire line to a port of the switching system.

公开(公告)号：FR2296339A1

公开(公告)日：1976-07-23

申请号：FR7535236

申请日：1975-11-10

Applicant: IBM

Inventor： MULLER HANS-RUDOLF ,  SCHINDLER HANS DR ,  VETTIGER PETER

IPC: H04M1/00 ,  H04M19/00 ,  H04Q3/42 ,  H04Q3/72 ,  H04Q5/00 ,  H04M9/04

公开(公告)号：CA910428A

公开(公告)日：1972-09-19

申请号：CA910428D

Applicant: IBM

Inventor： FREI ARMIN H ,  VETTIGER PETER

公开(公告)号：DE2133322A1

公开(公告)日：1972-01-20

申请号：DE2133322

申请日：1971-07-05

Applicant: IBM

Inventor： HEINZ FREI ARMIN ,  VETTIGER PETER

IPC: H03F3/72 ,  H03G1/00 ,  H03K17/693 ,  H04J3/04 ,  H03K17/00

Abstract: A field-effect transistor is inserted in the series feedback path of a bipolar transistor at whose base terminal the analog input signal to be sampled is applied. The bipolar transistor is continuously maintained in its conductive state by drawing a current I0 from the emitter. The field-effect transistor is switched back and forth between its high and low impedance states by a sampling signal applied to its gate. The analog input signal is amplified, and therefore sampled, only when the field-effect transistor is in its low impedance state.

公开(公告)号：AT514049T

公开(公告)日：2011-07-15

申请号：AT02781555

申请日：2002-11-21

Applicant: IBM

Inventor： CROSS GRAHAM ,  DESPONT MICHEL ,  DUERIG URS ,  GENOLET GREGOIRE ,  SCHLITTLER RETO ,  VETTIGER PETER

IPC: G01B7/34 ,  B81B3/00 ,  B82B3/00 ,  C01B31/02 ,  G01Q70/12 ,  G01Q70/16 ,  G11B9/00 ,  G11C23/00

Abstract: A method for forming a microstructures is described. The method comprises: depositing a seed material on a substrate; growing a nanotube from the seed material; depositing microstructure material on the substrate to embed the nanotube in the microstructure material; and, detaching the substrate to release the microstructure. The resulting mictostructure comprises a body portion and a nanotube embedded in the body portion.

公开(公告)号：DE69838327D1

公开(公告)日：2007-10-11

申请号：DE69838327

申请日：1998-10-30

Applicant: IBM

Inventor： HAEBERLE WALTER ,  LUTWYCHE MARK I ,  VETTIGER PETER

IPC: G05D3/00 ,  H02K41/03 ,  H02K41/035 ,  H02N11/00

Abstract: A scanning or positioning system with at least two degrees of freedom is provided comprising a supporting base (6) equipped with magnets (7.1), a movable platform (1) equipped with at least two electrical coils (2) and suspension elements (4) providing an elastic connection between the movable platform and the supporting base. The electrical coils (2) are positioned flat on the movable platform (1), thereby forming an essentially flat arrangement with the movable platform. Combining the flat arrangement with the flat supporting base yields a scanning or positioning system which is potentially compact, lightweight and flat and which features fast response, low power consumption and a relatively large range of motion, e.g. up to 10mm. The scanning or positioning system with at least two degrees of freedom can be used in the field of scanning probe microscopy or in the field of data storage or imaging.

公开(公告)号：DE60209333D1

公开(公告)日：2006-04-27

申请号：DE60209333

申请日：2002-03-15

Applicant: IBM

Inventor： BINNIG K ,  HAEBERLE WALTER ,  VETTIGER PETER

IPC: G11B9/14 ,  G11B13/00 ,  G11B9/00 ,  G11B11/00 ,  G11B11/16

Abstract: A method for writing data to and/or reading data from locations on a surface via a tip comprises moving the tip between the locations on the surface. At each location, energy is selectively applied to the surface via the tip and the tip and the surface are selectively forced together in synchronization with the application of energy.

公开(公告)号：AU2003253213A1

公开(公告)日：2004-03-19

申请号：AU2003253213

申请日：2003-08-22

Applicant: IBM

Inventor： BINNIG GERD K ,  DESPONT MICHEL ,  LANTZ MARK A ,  VETTIGER PETER

IPC: B81B3/00 ,  G01Q60/58 ,  G11B9/00 ,  G11B9/12 ,  G12B21/02

Abstract: A transducer for detecting movement of an article mounted for movement in a plane, the transducer comprising: a heater facing the plane of movement of the article and having a temperature dependent resistance; and, an edge defined in the article between regions of different thermal conductivity; wherein, as the article describes the movement, the edge moves relative to the heater producing a corresponding variation in heat loss from the heater and a corresponding variation in resistance of the heater.

公开(公告)号：AU2002237483A1

公开(公告)日：2002-10-08

申请号：AU2002237483

申请日：2002-03-14

Applicant: IBM

Inventor： BINNIG GERD K ,  VETTIGER PETER ,  HAEBERLE WALTER

IPC: G11B9/00 ,  G11B9/14 ,  G11B25/06

Abstract: In accordance with the present invention, there is provided an apparatus comprising a tape having an information layer on which information is storable in the form of perturbations, an array of probes that in function faces the tape such that the probes scan the surface of the tape, means for selectively forming the perturbations via the probes, means for detecting the presence of the perturbations via the probes, and drive means for moving the tape relative to the array of probes. The apparatus allows to store high data capacities at a small form factor.