Patents by Inventor Andrew R. Motzko
Andrew R. Motzko 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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Patent number: 10593358Abstract: A data storage device includes a first actuator and a second actuator rotatable around a common axis. The data storage device further includes a first electrical connector configured to communicate electrical signals to and from the first actuator via a first flexible circuit. The data storage device further includes a second electrical connector separate from but in a stacked arrangement with the first electrical connector. The second electrical connector is configured to communicate electrical signals to and from the second actuator via a second flexible circuit.Type: GrantFiled: August 27, 2019Date of Patent: March 17, 2020Assignee: Seagate Technology LLCInventors: Maxwell Reese Kraus, Roger A. Resh, Andrew R. Motzko, Michael Allen Mewes
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Publication number: 20190385639Abstract: A data storage device includes a first actuator and a second actuator rotatable around a common axis. The data storage device further includes a first electrical connector configured to communicate electrical signals to and from the first actuator via a first flexible circuit. The data storage device further includes a second electrical connector separate from but in a stacked arrangement with the first electrical connector. The second electrical connector is configured to communicate electrical signals to and from the second actuator via a second flexible circuit.Type: ApplicationFiled: August 27, 2019Publication date: December 19, 2019Inventors: Maxwell Reese Kraus, Roger A. Resh, Andrew R. Motzko, Michael Allen Mewes
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Patent number: 10446180Abstract: According to some embodiments, a storage device includes a first actuator and a second actuator rotatable around a common axis. The storage device further includes a first electrical connector configured to communicate electrical signals to and from the first actuator, and a second electrical connector configured to communicate electrical signals to and from the second actuator and to communicate electrical signals to and from the first electrical connector. The storage device includes a hermetically-sealed body, the hermetically-sealed body including a base deck and a top cover, wherein the second electrical connector is configured to send and receive electrical signals to and from the first actuator and the second actuator through a single aperture in the hermetically-sealed body.Type: GrantFiled: March 21, 2018Date of Patent: October 15, 2019Assignee: Seagate Technology LLCInventors: Maxwell Reese Kraus, Roger A. Resh, Andrew R. Motzko, Michael Allen Mewes
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Publication number: 20190295578Abstract: According to some embodiments, a storage device includes a first actuator and a second actuator rotatable around a common axis. The storage device further includes a first electrical connector configured to communicate electrical signals to and from the first actuator, and a second electrical connector configured to communicate electrical signals to and from the second actuator and to communicate electrical signals to and from the first electrical connector. The storage device includes a hermetically-sealed body, the hermetically-sealed body including a base deck and a top cover, wherein the second electrical connector is configured to send and receive electrical signals to and from the first actuator and the second actuator through a single aperture in the hermetically-sealed body.Type: ApplicationFiled: March 21, 2018Publication date: September 26, 2019Inventors: Maxwell Reese Kraus, Roger A. Resh, Andrew R. Motzko, Michael Allen Mewes
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Patent number: 9905273Abstract: An apparatus includes an actuator assembly, a dampening assembly coupled to the actuator assembly, and a vibration sensor assembly coupled to the dampening assembly and coupled to the actuator assembly by way of the dampening assembly. A method includes attaching a dampening assembly to an actuator assembly and attaching a vibration sensor assembly to the dampening assembly. The dampening assembly is positioned between the vibration sensor assembly and the actuator assembly.Type: GrantFiled: April 26, 2016Date of Patent: February 27, 2018Assignee: Seagate Technology LLCInventors: Antanas Daugela, Neal F. Gunderson, Reed D. Hanson, Ricardo P. Freeman, Andrew R. Motzko, Erik J. Lindquist
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Publication number: 20170309312Abstract: An apparatus includes an actuator assembly, a dampening assembly coupled to the actuator assembly, and a vibration sensor assembly coupled to the dampening assembly and coupled to the actuator assembly by way of the dampening assembly. A method includes attaching a dampening assembly to an actuator assembly and attaching a vibration sensor assembly to the dampening assembly. The dampening assembly is positioned between the vibration sensor assembly and the actuator assembly.Type: ApplicationFiled: April 26, 2016Publication date: October 26, 2017Inventors: Antanas Daugela, Neal F. Gunderson, Reed D. Hanson, Ricardo P. Freeman, Andrew R. Motzko, Erik J. Lindquist
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Patent number: 9747934Abstract: Systems and methods for a flexible dynamic loop having reduced impedance are described. The flexible dynamic loop may supply current from a preamplifier to another device, such as a hard disk drive. In one embodiment, a flexible dynamic loop comprises a flexible structure having a set of wire traces. The flexible dynamic loop may also comprise a set of impedance control structures on the flexible structure and perpendicular to a bend radius of the flexible structure, wherein the set of impedance control structures change an impedance level experienced by at least some of the set of wire traces. Some of the impedance control structures may be staggered. The flexible dynamic loop may also include a cover layer formed over the set of impedance control structures, which may be patterned with perforations. The flexible dynamic loop may also include one or more flexible rails connecting some of the impedance control structures.Type: GrantFiled: September 13, 2016Date of Patent: August 29, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Todd M. Lammers, Andrew R. Motzko, Chau Chin Low, Matthew S. Graeff
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Patent number: 9489971Abstract: A system includes a first preamplifier, a second preamplifier and a flex circuit. The first preamplifier is configured to be connected to a first plurality of recording heads. The second preamplifier is configured to be connected to a second plurality of recording heads. At least one of the first plurality of recording heads and at least one of the second plurality of recording heads are configured to concurrently perform read and or write operations. The flex circuit is a single flex circuit configured to connect the first and second preamplifiers to the plurality of recording heads.Type: GrantFiled: January 29, 2015Date of Patent: November 8, 2016Assignee: SEAGATE TECHNOLOGY LLCInventors: Karsten Klarqvist, Andrew R. Motzko, Rick P. Freeman
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Patent number: 7952834Abstract: In accordance with various embodiments, a printed structure of a flex circuit assembly includes a plurality of adjacent land portions formed on a heat conductive stiffener member and which support electrically conductive paths for connection to an integrated circuit. A corresponding plurality of separation channels are formed between the adjacent electrically conductive paths, and thermal energy generated by operation of the integrated circuit is transferred through the separation channels to the stiffener member. In some embodiments, the separation channels retain a fluid, such as air or a low density inert gas, which flows through the separation channels in response to rotation of a rotatable member adjacent the flex circuit assembly. In other embodiments, a dielectric, thermally conductive material fills the separation channels.Type: GrantFiled: February 22, 2008Date of Patent: May 31, 2011Assignee: Seagate Technology LLCInventors: Rick Pfahl Freeman, Andrew R. Motzko
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Patent number: 7742255Abstract: Apparatus and method for head-disc interface (HDI) modal response monitoring. A sensing element disposed on a rigid actuator arm is mechanically impedance matched to a head-disc interface (HDI) supported by the actuator arm to resonate at a predetermined frequency corresponding to at least one disturbance associated with the HDI.Type: GrantFiled: July 11, 2007Date of Patent: June 22, 2010Assignee: Seagate Technology LLCInventors: Antanas Daugela, Subra Nagarajan, Jason W. Riddering, Neal F. Gunderson, John S. Wright, Stefan A. Ionescu, Rick P. Freeman, Erick J. Lindquist, Andrew R. Motzko, Zine Eddine Boutaghou
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Publication number: 20090213542Abstract: In accordance with various embodiments, a printed structure of a flex circuit assembly includes a plurality of adjacent land portions formed on a heat conductive stiffener member and which support electrically conductive paths for connection to an integrated circuit. A corresponding plurality of separation channels are formed between the adjacent electrically conductive paths, and thermal energy generated by operation of the integrated circuit is transferred through the separation channels to the stiffener member. In some embodiments, the separation channels retain a fluid, such as air or a low density inert gas, which flows through the separation channels in response to rotation of a rotatable member adjacent the flex circuit assembly. In other embodiments, a dielectric, thermally conductive material fills the separation channels.Type: ApplicationFiled: February 22, 2008Publication date: August 27, 2009Applicant: Seagate Technology LLCInventors: Rick Pfahl Freeman, Andrew R. Motzko
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Publication number: 20090015962Abstract: Apparatus and method for head-disc interface (HDI) modal response monitoring. A sensing element disposed on a rigid actuator arm is mechanically impedance matched to a head-disc interface (HDI) supported by the actuator arm to resonate at a predetermined frequency corresponding to at least one disturbance associated with the HDI.Type: ApplicationFiled: July 11, 2007Publication date: January 15, 2009Applicant: Seagate Technology LLCInventors: ANTANAS DAUGELA, Subra Nagarajan, Jason W. Riddering, Neal F. Gunderson, John S. Wright, Stefan A. Ionescu, Rick P. Freeman, Erik J. Lindquist, Andrew R. Motzko, Zine Eddine Boutaghou
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Patent number: 7137196Abstract: An interface to make interconnections between the interior and exterior of a sealed enclosure may include a flat connector (FC). The FC may comprise at least one layer of a substantially planar substrate. Each substrate layer may include metallization for conducting signals between contacts on an interior-facing surface and contacts on an exterior-facing surface. In an enclosure with an aperture for passing electrical conductors, the FC may be configured to seal the aperture to inhibit the escape of a low density gas, such as helium, for a long period of time. In one embodiment, the FC may include metallization configured to minimize helium leakage. As such, the FC may conduct electrical signals into and out of the sealed enclosure. Such signals may include, for example, power, control, and data signals for operating devices housed within the enclosure.Type: GrantFiled: July 2, 2004Date of Patent: November 21, 2006Assignee: Seagate Technology LLCInventors: Neal F. Gunderson, Frank W. Bernett, Andrew R. Motzko
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Patent number: 6856490Abstract: A flex cable assembly for use in a disc drive data storage device includes a laminated flex cable and a flex cable support. The flex cable provides electrical communication paths between a moveable head stack assembly and a disc drive printed circuit board. The flex cable support comprises a base and adjacent first and second flex support portions with respective first and second flex support surfaces. The flex cable is routed along the flex support surfaces and exerts a spring force thereagainst as the flex cable attempts to return to a nominally planar orientation. The direction of the second flex support surface establishes the orientation of a dynamic loop between the flex cable support and the head stack assembly. Preferably, a portion of the flex cable pulls away from the second flex support surface to lengthen the dynamic loop in response to movement of the head stack assembly.Type: GrantFiled: June 25, 2002Date of Patent: February 15, 2005Assignee: Seagate Technology LLCInventors: Wolfgang Rosner, Andrew R. Motzko
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Patent number: 6634086Abstract: A head interconnect circuit for connecting transducer elements of a data head to drive circuitry including an alignment finger on a lead tip for aligning leads relative to connectors or solder pads for electrically connecting heads to drive circuitry. A method for connecting a head interconnect circuit to a printed circuit supported on an head actuator including aligning an alignment finger on the lead tip with a printed surface of a drive circuit for soldering leads on the lead tip to solder pads or connectors on the drive circuit.Type: GrantFiled: April 9, 2001Date of Patent: October 21, 2003Assignee: Seagate Technology LLCInventors: Kurt J. Korkowski, Kenneth R. Fastner, Adam K. Himes, Gregory P. Myers, Andrew R. Motzko
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Publication number: 20030147180Abstract: A flex cable assembly for use in a disc drive data storage device includes a laminated flex cable and a flex cable support. The flex cable provides electrical communication paths between a moveable head stack assembly and a disc drive printed circuit board. The flex cable support comprises a base and adjacent first and second flex support portions with respective first and second flex support surfaces. The flex cable is routed along the flex support surfaces and exerts a spring force thereagainst as the flex cable attempts to return to a nominally planar orientation. The direction of the second flex support surface establishes the orientation of a dynamic loop between the flex cable support and the head stack assembly. Preferably, a portion of the flex cable pulls away from the second flex support surface to lengthen the dynamic loop in response to movement of the head stack assembly.Type: ApplicationFiled: June 25, 2002Publication date: August 7, 2003Applicant: Seagate Technology LLCInventors: Wolfgang Rosner, Andrew R. Motzko
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Patent number: 6399889Abstract: A head interconnect circuit for connecting transducer elements of a data head to drive circuitry including an alignment finger on a lead tip for aligning leads relative to connectors or solder pads for electrically connecting heads to drive circuitry. A method for connecting a head interconnect circuit to a printed circuit supported on an head actuator including aligning an alignment finger on the lead tip with a printed surface of a drive circuit for soldering leads on the lead tip to solder pads or connectors on the drive circuit.Type: GrantFiled: September 13, 1999Date of Patent: June 4, 2002Assignee: Seagate Technology LLCInventors: Kurt J. Korkowski, Kenneth R. Fastner, Adam K. Himes, Gregory P. Myers, Andrew R. Motzko
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Publication number: 20010011604Abstract: A head interconnect circuit for connecting transducer elements of a data head to drive circuitry including an alignment finger on a lead tip for aligning leads relative to connectors or solder pads for electrically connecting heads to drive circuitry. A method for connecting a head interconnect circuit to a printed circuit supported on an head actuator including aligning an alignment finger on the lead tip with a printed surface of a drive circuit for soldering leads on the lead tip to solder pads or connectors on the drive circuit.Type: ApplicationFiled: April 9, 2001Publication date: August 9, 2001Inventors: Kurt J. Korkowski, Kenneth R. Fastner, Adam K. Himes, Gregory P. Myers, Andrew R. Motzko
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Patent number: 6016043Abstract: A motor control circuit controls a motor in a disc drive is provided. The motor control circuit includes a commutation circuit which provides commutation signals to the motor to commutate the motor at a commutation frequency. A frequency modulation circuit is operably coupled to the commutation circuit. The frequency modulation circuit provides a modulation signal which frequency modulates the commutation frequency according to a predetermined pattern.Type: GrantFiled: January 28, 1998Date of Patent: January 18, 2000Assignee: Seagate Technology, Inc.Inventors: Andrew R. Motzko, Garry E. Korbel, John M. Baker, Stuart K. Francis
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Patent number: 5633570Abstract: A method of, and an apparatus for, starting a brushless DC motor from standstill in a magnetic data storage system are disclosed. At least one motor position signal written on at least one magnetic disc surface is sensed. A communication state of the motor is determined as a function of the at least one sensed motor position signal. The motor is controlled based upon the determined commutation state.Type: GrantFiled: February 12, 1996Date of Patent: May 27, 1997Assignee: Seagate Technology, Inc.Inventor: Andrew R. Motzko