Patents by Inventor Zheng Gao
Zheng Gao 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: 10741344Abstract: An input mechanism is disclosed. The input mechanism includes a dome support structure defining an opening that extends through the dome support structure, a collapsible dome positioned in the opening and engaged with the dome support structure, and a cover member coupled to the dome support structure and covering the collapsible dome, thereby retaining the collapsible dome within the opening of the dome support structure.Type: GrantFiled: September 24, 2018Date of Patent: August 11, 2020Assignee: APPLE INC.Inventors: Eric A. Knopf, Matthew P. Casebolt, Craig C. Leong, Robert Y. Cao, Bradford J. Zercoe, Dinesh C. Mathew, Zheng Gao, Ryan P. Brooks, Paul X. Wang, Bruce E. Berg
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Patent number: 10734013Abstract: Spin transfer torque (STT) devices with multilayer seed layers that can be used in magnetic recording and memory are provided. One such STT device includes a substrate, and a stack of layers formed on the substrate, where the stack includes a first seed layer directly on the substrate and including Cr, a second seed layer on the first seed layer and including Ta, a ferromagnetic free layer on the second seed layer; a ferromagnetic polarizing layer, and a nonmagnetic spacer layer between the free layer and the polarizing layer. One such method includes fabricating the STT device.Type: GrantFiled: February 15, 2019Date of Patent: August 4, 2020Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.Inventors: Zheng Gao, Masahiko Hashimoto, Susumu Okamura, James Mac Freitag
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Patent number: 10725544Abstract: According to some embodiments, an accessory device for interacting with an electronic device having a touch sensitive surface, is described. The accessory device can include a housing having walls suitable for carrying a processor capable of providing instructions and an interface unit extending through an opening at a distal end of the housing, where the interface unit is capable of interacting with the touch sensitive surface. The accessory device can further include a sensor in communication with the processor and the interface unit, where the sensor is capable of (i) detecting a stimulus generated by the interaction between the interface unit and the touch sensitive surface, and (ii) responding by providing a feedback parameter to the processor that responds by providing a feedback instruction. The accessory device can further include a feedback component that responds to the feedback instruction by transmitting a feedback force to the walls of the housing.Type: GrantFiled: May 11, 2017Date of Patent: July 28, 2020Assignee: Apple Inc.Inventors: Steven J. Taylor, Brenton A. Baugh, Paul X. Wang, Alex J. Lehmann, Ivan S. Maric, Zheng Gao, Qiliang Xu
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Publication number: 20200192484Abstract: Disclosed herein are structures, devices, methods and systems for providing haptic output on an electronic device. In some embodiments, the electronic device includes an actuator configured to move in a first direction. The electronic device also includes a substrate coupled to the actuator. When the actuator moves in the first direction, the substrate or a portion of the substrate, by virtue of being coupled to the actuator, moves in a second direction. In some implementations, the movement of the substrate is perpendicular to the movement of the actuator.Type: ApplicationFiled: February 26, 2020Publication date: June 18, 2020Inventors: Alex J. Lehmann, Juan Pu, Paul X. Wang, Qiliang Xu, Zheng Gao
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Publication number: 20200174572Abstract: An input device, such as a stylus, can include a piezoelectric device for providing haptic feedback and/or detecting user input. The piezoelectric device can be coupled to an inner surface of a housing of the stylus. The piezoelectric device can provide haptic feedback with a force to the housing when an electric voltage is applied to the piezoelectric device. The haptic feedback can provide information to the user relating operation of the stylus with an external device. The piezoelectric device can also produce an electric voltage when an input force is applied to an outer surface of the housing and transmitted to the piezoelectric device. The electric voltage can be used to detect tactile input from a user.Type: ApplicationFiled: February 10, 2020Publication date: June 4, 2020Inventors: Kathleen A. BERGERON, Alex J. LEHMANN, Qiliang XU, Zheng GAO, Paul X. WANG
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Patent number: 10656714Abstract: A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.Type: GrantFiled: March 28, 2018Date of Patent: May 19, 2020Assignee: APPLE INC.Inventors: Christiaan A. Ligtenberg, Brett W. Degner, Ron A. Hopkinson, Asif Hussain, Dinesh C. Mathew, Mikael M. Silvanto, Chang Zhang, Zheng Gao, Robert Y. Cao, Keith J. Hendren, Bryan W. Posner, Simon R. Lancaster-Larocque, Alex J. Lehmann
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Publication number: 20200142501Abstract: A keyboard may be provided that has keys overlapped by a touch sensor. The keyboard may have key sensor circuitry for monitoring switching in the keys for key press input. The keyboard may also have touch sensor circuitry such as capacitive touch sensor circuitry that monitors capacitive electrodes in the touch sensor for touch sensor input such as multitouch gesture input. The keyboard may include an outer layer of fabric that overlaps the keys. The fabric may have openings that are arranged to form alphanumeric characters. Light sources may emit light that passes through the openings and illuminates the alphanumeric characters. The touch sensor may have signal lines that are not visible through the openings. The signal lines may be transparent, may be covered by a diffuser, or may circumvent the openings so that they do not overlap.Type: ApplicationFiled: December 19, 2019Publication date: May 7, 2020Inventors: Paul X. Wang, Chia Chi Wu, Qiliang Xu, Zheng Gao, Daniel D. Sunshine, Aidan N. Zimmerman
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Patent number: 10642356Abstract: Embodiments are directed to a user input device and methods related to the use thereto. In one aspect, an embodiment includes a flexible fabric attachable to a user having a first portion and a second portion. The first portion may be moveable in relation to the second portion. The embodiment may further include a controller configured to identify an input configuration based on a position of the first portion relative to a position of the second portion within a three-dimensional space. The embodiment may further include a haptic feedback structure disposed adjacent the flexible fabric and configured to provide haptic feedback based on the input configuration.Type: GrantFiled: June 21, 2017Date of Patent: May 5, 2020Assignee: Apple Inc.Inventors: Paul X. Wang, Zheng Gao, Reza Nasiri Mahalati, Ray L. Chang
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Patent number: 10643643Abstract: Embodiments of the present disclosure generally relate to a spin torque oscillator device (STO) including a high damping field generation layer or a damping enhancing capping layer for use in microwave assisted magnetic recording (MAMR) write heads. In one embodiment, a STO device for a MAMR write head includes a spin polarization layer, a spacer layer over the spin polarization layer, and a field generation layer over the spacer layer. The field generation layer has a damping in a range from about 0.5% to about 20%.Type: GrantFiled: March 19, 2019Date of Patent: May 5, 2020Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.Inventors: Zheng Gao, James Mac Freitag, Susumu Okamura
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Patent number: 10615551Abstract: Structures, methods, and apparatus that provide connector receptacles that have a reduced tendency to scratch and otherwise mar connector inserts, have an aesthetically-pleasing appearance, and have an improved tactile response when inserts are inserted. Various examples reduce scratches and wear by utilizing domes, cylinders, balls, or other structures as finger contacts in a connector receptacle. Another example provides aesthetically-pleasing connector receptacle enclosures by forming receptacle enclosures using the same type of material, or material having the same or similar color or texture, as is used for enclosing the electronic device that includes the receptacle. Another example provides an aesthetically-pleasing receptacle enclosure by forming receptacle enclosures that are, in part or in whole, contiguous or formed with the housing. Another embodiment provides a connector receptacle having a housing where a portion of the housing has been removed to save space.Type: GrantFiled: November 5, 2018Date of Patent: April 7, 2020Assignee: Apple Inc.Inventors: Zheng Gao, Steve McClure, Joshua Banko, Greg Springer, Min Chul Kim, Joshua Funamura
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Patent number: 10591993Abstract: Disclosed herein are structures, devices, methods and systems for providing haptic output on an electronic device. In some embodiments, the electronic device includes an actuator configured to move in a first direction. The electronic device also includes a substrate coupled to the actuator. When the actuator moves in the first direction, the substrate or a portion of the substrate, by virtue of being coupled to the actuator, moves in a second direction. In some implementations, the movement of the substrate is perpendicular to the movement of the actuator.Type: GrantFiled: January 26, 2017Date of Patent: March 17, 2020Assignee: APPLE INC.Inventors: Alex J. Lehmann, Juan Pu, Paul X. Wang, Qiliang Xu, Zheng Gao
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Patent number: 10590600Abstract: An item such as a fabric-based item may have a layer of fabric with openings that are illuminated by a light source. The openings may form symbols or other shapes and may serve as labels for keyboard keys or other components. The fabric may be formed from transparent strands of material that are coated with opaque material or may be formed from opaque strands of material in which openings are formed by laser drilling. The openings may be covered with a transparent coating layer such as a translucent polymer coating. Translucent material on the fabric may be patterned to form parts of the labels or other shapes created by the illuminated openings.Type: GrantFiled: January 17, 2017Date of Patent: March 17, 2020Assignee: Apple Inc.Inventors: Paul Xiaopeng Wang, Christopher T. Lebedeff, Joel N. Ruscher, Zheng Gao, Siddhartha Hegde, Zhengyu Li
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Publication number: 20200058456Abstract: Methods for assembling low-profile, singulated keyboards by prefabricating key assemblies onto a chassis strip that is divided into individual key assemblies only after the substrate is affixed to a feature plate of keyboard. For example, a row of key assemblies is fabricated onto a chassis strip. The row corresponds to a partial or complete row of keys of the keyboard. The chassis strip is thereafter affixed to a feature plate in a specific location, thereby aligning each prefabricated key assembly to a precise location on the feature plate. While connected, each prefabricated key assembly is independently affixed to the feature plate. Thereafter, interconnecting portions of the chassis strip between the prefabricated key assemblies are removed, thereby singulating each key assembly.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Inventors: Chia Chi Wu, Ming Gao, Zheng Gao, Zyhengyu Li
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Patent number: 10566015Abstract: A spin transfer torque (STT) device has a free ferromagnetic layer that includes a Heusler alloy layer and a template layer beneath and in contact with the Heusler alloy layer. The template layer may be a ferromagnetic alloy comprising one or more of Co, Ni and Fe and the element X, where X is selected from one or, more of Ta, B, Hf, Zr, W, Nb and Mo. A CoFe nanolayer may be formed below and in contact with the template layer. The STT device may be a spin-torque oscillator (STO), like a STO incorporated into the write head of a magnetic recording disk drive. The STT device may also be a STT in-plane or perpendicular magnetic tunnel junction (MTJ) cell for magnetic random access memory (MRAM). The template layer reduces the critical current density of the STT device.Type: GrantFiled: May 10, 2018Date of Patent: February 18, 2020Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.Inventors: James Mac Freitag, Zheng Gao, Masahiko Hashimoto, Sangmun Oh, Hua Al Zeng
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Patent number: 10566151Abstract: An item such as a fabric-based item may have one or more input devices. The input devices may have terminals that are electrically coupled to control circuitry. The control circuitry may make resistance measurements, capacitance measurements, and other measurements on the input devices to determine whether the input devices have been pressed by a user's finger or have otherwise received input. The input devices may be used to form an array of switches for a keyboard, may form buttons on an electronic device housing or case, may be part of an item of clothing, or may be incorporated into other items such as fabric-based items. The input devices may have collapsible fabric structures such as collapsible fabric domes. The terminals of the input devices may be formed from conductive strands of material in the fabric domes or may be supported by other structures that buckle under applied pressure.Type: GrantFiled: January 26, 2017Date of Patent: February 18, 2020Assignee: Apple Inc.Inventors: Paul Xiaopeng Wang, Siddhartha Hegde, Daniel D. Sunshine, Zheng Gao
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Patent number: 10564724Abstract: An input device, such as a stylus, can include a piezoelectric device for providing haptic feedback and/or detecting user input. The piezoelectric device can be coupled to an inner surface of a housing of the stylus. The piezoelectric device can provide haptic feedback with a force to the housing when an electric voltage is applied to the piezoelectric device. The haptic feedback can provide information to the user relating operation of the stylus with an external device. The piezoelectric device can also produce an electric voltage when an input force is applied to an outer surface of the housing and transmitted to the piezoelectric device. The electric voltage can be used to detect tactile input from a user.Type: GrantFiled: August 30, 2017Date of Patent: February 18, 2020Assignee: APPLE INC.Inventors: Kathleen A. Bergeron, Alex J. Lehmann, Qiliang Xu, Zheng Gao, Paul X. Wang
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Publication number: 20200013429Abstract: A spin transfer torque (STT) device is formed on an electrically conductive substrate and includes a ferromagnetic free layer near the substrate, a ferromagnetic polarizing layer and a nonmagnetic spacer layer between the free layer and the polarizing layer. A multilayer structure is located between the substrate and the free layer. The multilayer structure includes a metal or metal alloy seed layer for the free layer and an intermediate oxide layer below and in contact with the seed layer. The intermediate oxide layer reflects spin current from the free layer and thus reduces undesirable damping of the oscillation of the free layer's magnetization by the seed layer.Type: ApplicationFiled: September 16, 2019Publication date: January 9, 2020Applicants: Western Digital Technologies, Inc., Western Digital Technologies, Inc.Inventors: James Mac FREITAG, Susumu OKAMURA, Masahiko HASHIMOTO, Zheng GAO
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Patent number: 10514772Abstract: A keyboard may be provided that has keys overlapped by a touch sensor. The keyboard may have key sensor circuitry for monitoring switching in the keys for key press input. The keyboard may also have touch sensor circuitry such as capacitive touch sensor circuitry that monitors capacitive electrodes in the touch sensor for touch sensor input such as multitouch gesture input. The keyboard may include an outer layer of fabric that overlaps the keys. The fabric may have openings that are arranged to form alphanumeric characters. Light sources may emit light that passes through the openings and illuminates the alphanumeric characters. The touch sensor may have signal lines that are not visible through the openings. The signal lines may be transparent, may be covered by a diffuser, or may circumvent the openings so that they do not overlap.Type: GrantFiled: August 29, 2017Date of Patent: December 24, 2019Assignee: Apple Inc.Inventors: Paul X. Wang, Chia Chi Wu, Qiliang Xu, Zheng Gao, Daniel D. Sunshine, Aidan N. Zimmerman
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Patent number: 10516225Abstract: Connector systems may include a connector receptacle and connector plug or insert. The connector receptacle may include a tongue. The tongue may be formed using a printed circuit board. Contacts may be plated on top and bottom surfaces of the tongue. Retention features may also be located on top and bottom surfaces of tongue. These retention features may be speed bumps or other features. The connector insert may include a leading edge portion formed of plastic, a conductive shield around the insert behind the leasing edge portion, a plurality of spring contacts attached to an inside of the conductive shield, a top row of contacts; and a bottom row of contacts. Other connector receptacles may include a tongue having side ground contacts. The side ground contacts may engage an inside of a plug shield and have contacting portion to fit in openings in the plug shield.Type: GrantFiled: October 15, 2018Date of Patent: December 24, 2019Assignee: Apple Inc.Inventors: Mahmoud R. Amini, Zheng Gao, Nathan N. Ng
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Patent number: 10460752Abstract: A magnetic recording write head and system has a spin-torque oscillator (STO) located between the write head's write pole and trailing shield. The STO's ferromagnetic free layer is located near the write pole with a multilayer seed layer between the write pole and the free layer. The STO's nonmagnetic spacer layer is between the free layer and the STO's ferromagnetic polarizer. The polarizer may be the trailing shield of the write head or a separate polarizer layer. The STO electrical circuitry causes electron flow from the write pole to the trailing shield. The multilayer seed layer removes the spin polarization of electrons from the write pole, which enables electrons reflected from the polarizer layer to become spin polarized, which creates the spin transfer torque on the magnetization of the free layer. The multilayer seed layer includes Mn or a Mn-alloy layer between one or more metal or metal alloy films.Type: GrantFiled: May 10, 2018Date of Patent: October 29, 2019Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.Inventors: James Mac Freitag, Zheng Gao, Masahiko Hashimoto, Sangmun Oh