Patents by Inventor Walter Haeberle
Walter Haeberle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240060537Abstract: Provided are a tape guide roller and tape drive having a guide roller having magnets and bushings to stabilize a roller barrel for a tape medium. The tape guide roller has a roller barrel extending around a vertical axis. The tape medium passes across the roller barrel to guide the tape medium on a tape path. A plurality of magnets positioned with respect to the vertical axis provide an axial force to stabilize the tape guide roller axially.Type: ApplicationFiled: August 22, 2022Publication date: February 22, 2024Inventors: Kevin Bruce JUDD, Walter HAEBERLE, Simeon FURRER, Mark Alfred LANTZ, Armando ARGUMEDO
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Patent number: 10783920Abstract: A method of operating a magnetic tape within a tape drive. The tape drive comprises a tape head, which shows a tape-bearing surface meant to face a front side of a magnetic tape, in operation. The tape-bearing surface comprises a transducer area. This area includes at least one transducer, which is a read or write element configured to read or write to the magnetic tape, respectively. The method may include driving the tape (along a longitudinal direction of circulation thereof above the tape-bearing surface) and concomitantly ejecting a gas flow toward the transducer area. The gas flow ejected impinges on the back side of the driven tape (e.g., opposite to the front side of the tape), so as to locally urge the front side of the tape against the transducer area and thereby read or write to the tape via said at least one transducer.Type: GrantFiled: October 4, 2019Date of Patent: September 22, 2020Assignee: International Business Machines CorporationInventors: Hugo E. Rothuizen, Peter Reininger, Walter Haeberle, Mark A. Lantz
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Publication number: 20200058324Abstract: A method of operating a magnetic tape within a tape drive. The tape drive comprises a tape head, which shows a tape-bearing surface meant to face a front side of a magnetic tape, in operation. The tape-bearing surface comprises a transducer area. This area includes at least one transducer, which is a read or write element configured to read or write to the magnetic tape, respectively. The method may include driving the tape (along a longitudinal direction of circulation thereof above the tape-bearing surface) and concomitantly ejecting a gas flow toward the transducer area. The gas flow ejected impinges on the back side of the driven tape (e.g., opposite to the front side of the tape), so as to locally urge the front side of the tape against the transducer area and thereby read or write to the tape via said at least one transducer.Type: ApplicationFiled: October 4, 2019Publication date: February 20, 2020Inventors: Hugo E. Rothuizen, Peter Reininger, Walter Haeberle, Mark A. Lantz
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Patent number: 10551214Abstract: A sensor arrangement for position sensing comprises a row of multiple magnetoresistive elements. A magnetic field source (3) provides a magnetic field with a first magnetic pole (N) and a second magnetic pole (S). The magnetic field source (3) is arranged such that magnetoresistive elements of the row face one of: the first magnetic pole (N) or second magnetic pole (S). The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the magnetoresistive element relative to the magnetic field source (3). A measurement unit is configured to determine a position of the magnetic field source (3) relative to the magnetoresistive elements of the row dependent on the first output signals of the magnetoresistive elements.Type: GrantFiled: December 27, 2017Date of Patent: February 4, 2020Assignee: International Business Machines CorporationInventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tuma Tomas
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Patent number: 10522182Abstract: A method of operating a magnetic tape within a tape drive. The tape drive comprises a tape head, which shows a tape-bearing surface meant to face a front side of a magnetic tape, in operation. The tape-bearing surface comprises a transducer area. This area includes at least one transducer, which is a read or write element configured to read or write to the magnetic tape, respectively. The method may include driving the tape (along a longitudinal direction of circulation thereof above the tape-bearing surface) and concomitantly ejecting a gas flow toward the transducer area. The gas flow ejected impinges on the back side of the driven tape (e.g., opposite to the front side of the tape), so as to locally urge the front side of the tape against the transducer area and thereby read or write to the tape via said at least one transducer.Type: GrantFiled: August 20, 2018Date of Patent: December 31, 2019Assignee: International Business Machines CorporationInventors: Hugo E. Rothuizen, Peter Reininger, Walter Haeberle, Mark A. Lantz
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Patent number: 10378923Abstract: A sensor arrangement for position sensing comprises a row of multiple magnetoresistive elements. A magnetic field source (3) provides a magnetic field with a first magnetic pole (N) and a second magnetic pole (S). The magnetic field source (3) is arranged such that magnetoresistive elements of the row face one of: the first magnetic pole (N) or second magnetic pole (S). The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the magnetoresistive element relative to the magnetic field source (3). A measurement unit is configured to determine a position of the magnetic field source (3) relative to the magnetoresistive elements of the row dependent on the first output signals of the magnetoresistive elements.Type: GrantFiled: December 27, 2017Date of Patent: August 13, 2019Assignee: International Business Machines CorporationInventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tuma Tomas
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Publication number: 20180120129Abstract: A sensor arrangement for position sensing comprises a row of multiple magnetoresistive elements. A magnetic field source (3) provides a magnetic field with a first magnetic pole (N) and a second magnetic pole (S). The magnetic field source (3) is arranged such that magnetoresistive elements of the row face one of: the first magnetic pole (N) or second magnetic pole (S). The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the magnetoresistive element relative to the magnetic field source (3). A measurement unit is configured to determine a position of the magnetic field source (3) relative to the magnetoresistive elements of the row dependent on the first output signals of the magnetoresistive elements.Type: ApplicationFiled: December 27, 2017Publication date: May 3, 2018Inventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tuma Tomas
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Patent number: 9945693Abstract: A method for determining of a position of an object using a sensor arrangement that includes a first magnetoresistive element and a second magnetoresistive element. A source provides a magnetic field with first and second magnetic poles. The source is arranged between the first magnetoresistive element and the second magnetoresistive element with the first magnetic pole facing the first magnetoresistive element and the second magnetic pole facing the second magnetoresistive element. The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the first magnetoresistive element relative to the magnetic field source. The second magnetoresistive element is arranged in the magnetic field and provides a second output signal dependent on a position of the second magnetoresistive element relative to the magnetic field source.Type: GrantFiled: August 13, 2015Date of Patent: April 17, 2018Assignee: International Business Machines CorporationInventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tuma Tomas
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Patent number: 9759578Abstract: A sensor arrangement for position sensing comprises a first magnetoresistive element (1) and a second magnetoresistive element (2). A magnetic field source (3) provides a magnetic field with a first magnetic pole (N) and a second magnetic pole (S). The magnetic field source (3) is arranged between the first magnetoresistive element (1) and the second magnetoresistive element (2) with the first magnetic pole (N) facing the first magnetoresistive element (1) and the second magnetic pole (S) facing the second magnetoresistive element (2). The first magnetoresistive element (1) is arranged in the magnetic field and provides a first output signal (R1) dependent on a position of the first magnetoresistive element (1) relative to the magnetic field source (3). The second magnetoresistive element (2) is arranged in the magnetic field and provides a second output signal (R2) dependent on a position of the second magnetoresistive element (2) relative to the magnetic field source (3).Type: GrantFiled: March 12, 2015Date of Patent: September 12, 2017Assignee: International Business Machines CorporationInventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tuma Tomas
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Publication number: 20160265939Abstract: A method for determining of a position of an object using a sensor arrangement that includes a first magnetoresistive element and a second magnetoresistive element. A source provides a magnetic field with first and second magnetic poles. The source is arranged between the first magnetoresistive element and the second magnetoresistive element with the first magnetic pole facing the first magnetoresistive element and the second magnetic pole facing the second magnetoresistive element. The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the first magnetoresistive element relative to the magnetic field source. The second magnetoresistive element is arranged in the magnetic field and provides a second output signal dependent on a position of the second magnetoresistive element relative to the magnetic field source.Type: ApplicationFiled: August 13, 2015Publication date: September 15, 2016Inventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tuma Tomas
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Publication number: 20160265895Abstract: A sensor arrangement for position sensing comprises a first magnetoresistive element (1) and a second magnetoresistive element (2). A magnetic field source (3) provides a magnetic field with a first magnetic pole (N) and a second magnetic pole (S). The magnetic field source (3) is arranged between the first magnetoresistive element (1) and the second magnetoresistive element (2) with the first magnetic pole (N) facing the first magnetoresistive element (1) and the second magnetic pole (S) facing the second magnetoresistive element (2). The first magnetoresistive element (1) is arranged in the magnetic field and provides a first output signal (R1) dependent on a position of the first magnetoresistive element (1) relative to the magnetic field source (3). The second magnetoresistive element (2) is arranged in the magnetic field and provides a second output signal (R2) dependent on a position of the second magnetoresistive element (2) relative to the magnetic field source (3).Type: ApplicationFiled: March 12, 2015Publication date: September 15, 2016Inventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tuma Tomas
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Patent number: 9251847Abstract: A tape head system. The tape head system includes: a head for reading from and/or writing to magnetic tape; a support; and at least one leaf spring assembly supporting the head moveably relative to the support so as to allow the head to follow a motion of the tape, the at least one leaf spring assembly including at least one leaf spring and at least one damping element configured for damping a motion of the head relative to the support.Type: GrantFiled: March 3, 2014Date of Patent: February 2, 2016Assignee: International Business Machines CorporationInventors: Walter Haeberle, Mark A Lantz, Hugo E Rothuizen
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Publication number: 20150248915Abstract: A tape head system. The tape head system includes: a head for reading from and/or writing to magnetic tape; a support; and at least one leaf spring assembly supporting the head moveably relative to the support so as to allow the head to follow a motion of the tape, the at least one leaf spring assembly including at least one leaf spring and at least one damping element configured for damping a motion of the head relative to the support.Type: ApplicationFiled: March 3, 2014Publication date: September 3, 2015Applicant: International Business Machines CorporationInventors: Walter Haeberle, Mark A. Lantz, Hugo E. Rothuizen
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Publication number: 20130321892Abstract: A positioning device for scanning a surface includes a movable element; at least one spring-like element having a resilience element for providing a tunable resilience in at least one direction; wherein the spring-like element is configured to tune the resilience by applying a force onto the resilience element of the at least one spring-like element.Type: ApplicationFiled: June 26, 2013Publication date: December 5, 2013Inventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tomas Tuma
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Publication number: 20130318793Abstract: A positioning device for scanning a surface includes a movable element; at least one spring-like element having a resilience element for providing a tunable resilience in at least one direction; wherein the spring-like element is configured to tune the resilience by applying a force onto the resilience element of the at least one spring-like element.Type: ApplicationFiled: May 23, 2013Publication date: December 5, 2013Applicant: International Business Machines CorporationInventors: Walter Haeberle, Angeliki Pantazi, Abu Sebastian, Tomas Tuma
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Patent number: 8587892Abstract: Method for operating a storage device with a tape and a head wherein the head comprises a first and a second read element. Each read element is operable to detect servo-pattern of a particular servo band. The first and the second read element are arranged such that the tape at first passes one of both read elements and subsequently passes the other of both read elements when the tape moves in a predetermined longitudinal direction. A tape transport direction of the tape along the longitudinal direction is determined. The first read element is selected dependent on the determined tape transport direction, when the determined tape transport direction represents a direction where the tape at first passes the first read element and subsequently the second read element. Otherwise the second read element is selected. A position error signal is determined dependent on the selected read element.Type: GrantFiled: January 27, 2011Date of Patent: November 19, 2013Assignee: International Business Machines CorporationInventors: Evangelos S. Eleftheriou, Walter Haeberle, Jens Jelitto, Angeliki Pantazi
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Publication number: 20120293889Abstract: Method for operating a storage device with a tape and a head wherein the head comprises a first and a second read element. Each read element is operable to detect servo-pattern of a particular servo band. The first and the second read element are arranged such that the tape at first passes one of both read elements and subsequently passes the other of both read elements when the tape moves in a predetermined longitudinal direction. A tape transport direction of the tape along the longitudinal direction is determined. The first read element is selected dependent on the determined tape transport direction, when the determined tape transport direction represents a direction where the tape at first passes the first read element and subsequently the second read element. Otherwise the second read element is selected. A position error signal is determined dependent on the selected read element.Type: ApplicationFiled: January 27, 2011Publication date: November 22, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Evangelos S. Eleftheriou, Walter Haeberle, Jens Jelitto, Angeliki Pantazi
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Patent number: 8107353Abstract: A data storage device comprises a storage medium, at least one probe designed for creating indentation marks in the storage medium, a control unit designed for creating a control parameter (CTRL) acting on the probe resulting in the creation of one indentation mark. The control unit is further designed for modifying the control parameter (CTRL), if at least a given number of consecutive indentation marks with a given minimum distance between each other should be created. According to the method the control parameter (CTRL) is modified if at least a given number of consecutive marks with a given minimum distance between each other should be created.Type: GrantFiled: June 21, 2005Date of Patent: January 31, 2012Assignee: International Business Machines CorporationInventors: Haris Pozidis, Walter Haeberle, Dorothea W. Wiesmann
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Patent number: 8107189Abstract: A tape mounting apparatus for a magnetic tape data storage device which includes a movable structure movably attached to a base. The movable structure moves partially within the base and is powered by a motor unit. The moveable structure has at least a load position and a transport position. A tape guide device is positioned within the movable structure such that a tape passes over the tape guide device and between a tape reading head and the tape guide device. The base is attached to a body of a magnetic tape data storage drive.Type: GrantFiled: February 26, 2009Date of Patent: January 31, 2012Assignee: International Business Machines CorporationInventors: Walter Haeberle, Mark Alfred Lantz, Venkataraman Kartik
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Patent number: 8026719Abstract: A topography sensor and method include a probe configured to traverse a surface to determine a topography. A stray magnetic field is disposed in proximity to the probe. A magneto-resistive sensor is configured so that the stray magnetic field passing through it changes in accordance with positional changes of the probe as the probe tip traverses the surface.Type: GrantFiled: October 3, 2008Date of Patent: September 27, 2011Assignee: International Business Machines CorporationInventors: Peter Baechtold, Urs T. Duerig, Walter Haeberle, Armin W. Knoll, Charalampos Pozidis, Deepak Ranjan Sahoo, Gian R. Salis, Abu Sebastian