Patents by Inventor Benjamin Leung

Benjamin Leung 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).

  • Patent number: 11417794
    Abstract: A growth mask layer is formed over a semiconductor material layer on a substrate. Optionally, a patterned hard mask layer can be formed over the growth mask layer. A nano-imprint lithography (NIL) resist layer is applied, and is imprinted with a pattern of recesses by stamping. The pattern in the NIL resist layer through the growth mask layer to provide a patterned growth mask layer with clusters of openings therein. If a patterned hard mask layer is employed, the patterned hard mask can prevent transfer of the pattern in the area covered by the patterned hard mask layer. Semiconductor material portions, such as nanowires can be formed in a cluster configuration through the clusters of openings in the patterned growth mask layer. Alignment marks can be formed concurrently with formation of semiconductor material portions by employing nano-imprint lithography.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 16, 2022
    Assignee: NANOSYS, INC.
    Inventors: Zulal Tezcan Ozel, Tsun Lau, Benjamin Leung, Fariba Danesh
  • Publication number: 20220179510
    Abstract: This document describes techniques and devices for detecting twist input with an interactive cord. An interactive cord may be constructed with one or more conductive yarns wrapped around a cable in a first direction (e.g., clockwise), and one or more conductive yarns wrapped around the cable in a second direction that is opposite the first direction (e.g., counter-clockwise). A controller measures one or more capacitance values associated with the conductive yarns. In response to detecting a change in the one or more capacitance values, the controller determines that the change in the capacitance values corresponds to twist input caused by the user twisting the interactive cord. Then, the controller initiates one or more functions based on the twist input, such as by controlling audio to a headset by increasing or decreasing the volume, scrolling through menu items, and so forth.
    Type: Application
    Filed: February 24, 2022
    Publication date: June 9, 2022
    Applicant: Google LLC
    Inventors: Thad Eugene Starner, Karissa A. Sawyer, Greg Ellis Priest-Dorman, Jonathan Moeller, Nidhi Rathi, Jianyi Liu, Yao Ding, Chi Kin Benjamin Leung
  • Patent number: 11294511
    Abstract: This document describes techniques and devices for detecting twist input with an interactive cord. An interactive cord may be constructed with one or more conductive yarns wrapped around a cable in a first direction (e.g., clockwise), and one or more conductive yarns wrapped around the cable in a second direction that is opposite the first direction (e.g., counter-clockwise). A controller measures one or more capacitance values associated with the conductive yarns. In response to detecting a change in the one or more capacitance values, the controller determines that the change in the capacitance values corresponds to twist input caused by the user twisting the interactive cord. Then, the controller initiates one or more functions based on the twist input, such as by controlling audio to a headset by increasing or decreasing the volume, scrolling through menu items, and so forth.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: April 5, 2022
    Assignee: Google LLC
    Inventors: Thad Eugene Starner, Karissa A. Sawyer, Greg Ellis Priest-Dorman, Jonathan Moeller, Nidhi Rathi, Jianyi Liu, Yao Ding, Chi Kin Benjamin Leung
  • Patent number: 11257983
    Abstract: A light emitting device, such as an LED, is formed by forming a plurality of semiconductor nanostructures having a doping of a first conductivity type through, and over, a growth mask layer overlying a doped compound semiconductor layer. Each of the plurality of semiconductor nanostructures includes a nanofrustum including a bottom surface, a top surface, tapered planar sidewalls, and a height that is less than a maximum lateral dimension of the top surface, and a pillar portion contacting the bottom surface of the nanofrustum and located within a respective one of the openings through the growth mask layer. A plurality of active regions on the nanofrustums. A second conductivity type semiconductor material layer is formed on each of the plurality of active regions.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: February 22, 2022
    Assignee: NANOSYS, INC.
    Inventors: Richard P. Schneider, Jr., Benjamin Leung, Fariba Danesh, Zulal Tezcan Ozel, Miao-Chan Tsai
  • Publication number: 20210367106
    Abstract: The disclosure describes various aspects of strain management layers for light emitting elements such as light-emitting diodes (LEDs). The present disclosure describes an LED structure formed on a substrate and having a strain management region supported on the substrate, and an active region configured to provide a light emission associated with the LED structure. The strain management region includes a first layer including a superlattice having a plurality of repeated first and second sublayers, and a second layer including a bulk layer. In an embodiment, at least one of the first and second sublayers and the bulk layer includes a composition of InxAlyGa1-x-yN. A device having multiple LED structures and a method of making the LED structure are also described.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 25, 2021
    Inventors: Miao-Chan TSAI, Benjamin LEUNG, Richard Peter SCHNEIDER
  • Publication number: 20210367099
    Abstract: A light emitting diode (LED) structure includes a semiconductor template having a template top-surface, an active quantum well (QW) structure formed over the semiconductor template, and a p-type layer. The p-type layer has a bottom-surface that faces the active QW and the template top-surface. The bottom-surface includes a recess sidewall. The recess sidewall of the p-type layer is configured for promoting injection of holes into the active QW structure through a QW sidewall of the active QW structure.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 25, 2021
    Inventors: Benjamin LEUNG, Miao-Chan TSAI
  • Publication number: 20210343897
    Abstract: A light-emitting diode (LED) structure includes an active region that has at least one aluminum-containing quantum well (QW) stack that emits light from the LED structure when activated. The LED structure exhibits a modified internal quantum efficiency value, which is higher than a LED structure that does not include aluminum within a QW stack. The LED structure also exhibits a modified peak wavelength, which is longer than an unmodified peak wavelength of the unmodified LED structure.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 4, 2021
    Inventors: Ying-Lan CHANG, Benjamin LEUNG, Miao-Chan TSAI, Richard Peter SCHNEIDER, Sheila HURTT, Gang HE
  • Publication number: 20210341292
    Abstract: The technology provides for a pair of earbuds. For instance, a first earbud may include a first antenna, and a second earbud may include a second antenna. The pair of earbuds may further include one or more processors configured to receive, from the first antenna, a first signal from a beacon, and receive, from the second antenna, a second signal from the beacon. Based on the first signal and the second signal, the one or more processors may determine at least one signal strength. The one or more processors may determine a position of the user relative to the beacon based on the at least one signal strength.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Inventors: Jiang Zhu, Chi Kin Benjamin Leung
  • Publication number: 20210298098
    Abstract: The technology relates to establishing wireless communication links, or connections, between a first audio accessory device, a second audio accessory device, and a client computing device. After receiving signals from the client computing device to initiate audio output, the first audio accessory device and the second audio accessory device may both perform a series of steps in parallel to establish connections with the client computing device and with each other. The series of steps may include relaying one or more acknowledgement (ACK) signals between the audio accessory devices in order to confirm proper receipt of the signals from the client computing device at both audio accessory devices. Alternatively, the series of steps may include transmitting a jamming signal from one of the audio accessory devices in order to prevent an ACK signal from the other audio accessory device from reaching the client computing device and initiating audio output.
    Type: Application
    Filed: June 8, 2021
    Publication date: September 23, 2021
    Inventors: Hongyang Deng, Shijing Xian, Guang Xie, Chi Kin Benjamin Leung
  • Patent number: 11105636
    Abstract: The technology provides for a pair of earbuds. For instance, a first earbud may include a first antenna, and a second earbud may include a second antenna. The pair of earbuds may further include one or more processors configured to receive, from the first antenna, a first signal from a beacon, and receive, from the second antenna, a second signal from the beacon. Based on the first signal and the second signal, the one or more processors may determine at least one signal strength. The one or more processors may determine a position of the user relative to the beacon based on the at least one signal strength.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: August 31, 2021
    Assignee: Google LLC
    Inventors: Jiang Zhu, Chi Kin Benjamin Leung
  • Publication number: 20210249892
    Abstract: A first electronic device, electronically coupled to a second device for supplying a charge to the second electronic device, tracks the voltage requirements of the second device and dynamically adjusts its output voltage upwards or downwards to match such requirements. The second electronic device may provide feedback to the first electronic device through a feedback loop. The feedback may include an indication of the voltage requirements and/or instructions for adjusting the voltage output of the first electronic device. The second device may be, for example, a wearable audio device, while the first device is a case for the wearable audio device.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Inventors: Yao Ding, Trevor Hermosillo, Maksim Shmukler, Chi Kin Benjamin Leung
  • Patent number: 11071150
    Abstract: The technology relates to establishing wireless communication links, or connections, between a first audio accessory device, a second audio accessory device, and a client computing device. After receiving signals from the client computing device to initiate audio output, the first audio accessory device and the second audio accessory device may both perform a series of steps in parallel to establish connections with the client computing device and with each other. The series of steps may include relaying one or more acknowledgement (ACK) signals between the audio accessory devices in order to confirm proper receipt of the signals from the client computing device at both audio accessory devices. Alternatively, the series of steps may include transmitting a jamming signal from one of the audio accessory devices in order to prevent an ACK signal from the other audio accessory device from reaching the client computing device and initiating audio output.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: July 20, 2021
    Assignee: Google LLC
    Inventors: Hongyang Deng, Shijing Xian, Guang Xie, Chi Kin Benjamin Leung
  • Publication number: 20210202789
    Abstract: A growth mask layer is formed over a semiconductor material layer on a substrate. Optionally, a patterned hard mask layer can be formed over the growth mask layer. A nano-imprint lithography (NIL) resist layer is applied, and is imprinted with a pattern of recesses by stamping. The pattern in the NIL resist layer through the growth mask layer to provide a patterned growth mask layer with clusters of openings therein. If a patterned hard mask layer is employed, the patterned hard mask can prevent transfer of the pattern in the area covered by the patterned hard mask layer. Semiconductor material portions, such as nanowires can be formed in a cluster configuration through the clusters of openings in the patterned growth mask layer. Alignment marks can be formed concurrently with formation of semiconductor material portions by employing nano-imprint lithography.
    Type: Application
    Filed: August 14, 2018
    Publication date: July 1, 2021
    Inventors: Zulal TEZCAN, Tsun LAU, Benjamin LEUNG, Fariba DANESH
  • Patent number: 11025084
    Abstract: A first electronic device, electronically coupled to a second device for supplying a charge to the second electronic device, tracks the voltage requirements of the second device and dynamically adjusts its output voltage upwards or downwards to match such requirements. The second electronic device may provide feedback to the first electronic device through a feedback loop. The feedback may include an indication of the voltage requirements and/or instructions for adjusting the voltage output of the first electronic device. The second device may be, for example, a wearable audio device, while the first device is a case for the wearable audio device.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 1, 2021
    Assignee: Google LLC
    Inventors: Yao Ding, Trevor Hermosillo, Maksim Shmukler, Chi Kin Benjamin Leung
  • Publication number: 20200333141
    Abstract: The technology provides for a pair of earbuds. For instance, a first earbud may include a first antenna, and a second earbud may include a second antenna. The pair of earbuds may further include one or more processors configured to receive, from the first antenna, a first signal from a beacon, and receive, from the second antenna, a second signal from the beacon. Based on the first signal and the second signal, the one or more processors may determine at least one signal strength. The one or more processors may determine a position of the user relative to the beacon based on the at least one signal strength.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 22, 2020
    Inventors: Jiang Zhu, Chi Kin Benjamin Leung
  • Publication number: 20200274029
    Abstract: A light emitting device, such as an LED, is formed by forming a plurality of semiconductor nanostructures having a doping of a first conductivity type through, and over, a growth mask layer overlying a doped compound semiconductor layer. Each of the plurality of semiconductor nanostructures includes a nanofrustum including a bottom surface, a top surface, tapered planar sidewalls, and a height that is less than a maximum lateral dimension of the top surface, and a pillar portion contacting the bottom surface of the nanofrustum and located within a respective one of the openings through the growth mask layer. A plurality of active regions on the nanofrustums. A second conductivity type semiconductor material layer is formed on each of the plurality of active regions.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 27, 2020
    Inventors: Richard P. Schneider, JR., Benjamin Leung, Fariba Danesh, Zulal Tezcan Ozel, Miao-Chan Tsai
  • Patent number: 10707374
    Abstract: A method of forming a light emitting device includes forming a growth mask layer including openings on a doped compound semiconductor layer, forming first light emitting diode (LED) subpixels by forming a plurality of active regions and second conductivity type semiconductor material layers employing selective epitaxy processes, and transferring each first LED subpixel to a backplane. An anode contact electrode may be formed on the second conductivity type semiconductor material layers for redundancy. The doped compound semiconductor layer may be patterned with tapered sidewalls to enhance etendue. An optically clear encapsulation matrix may be formed on the doped compound semiconductor material layer to enhance etendue. Lift-off processes may be employed for the active regions. Cracking of the LEDs may be suppressed employing a thick reflector layer.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: July 7, 2020
    Assignee: GLO AB
    Inventors: Fariba Danesh, Benjamin Leung, Tsun Lau, Zulal Tezcan, Miao-Chan Tsai, Max Batres, Michael Joseph Cich
  • Publication number: 20200213705
    Abstract: A case (100) is provided for housing and charging one or more wireless devices (180), such as wireless earbuds. The case (100) includes capacitive sensing circuitry (120) for detecting whether the wireless devices (180) are positioned inside the case (100) based on a capacitance of the wireless devices (180). The case (100) also includes a transceiver (150) for transmitting data to and receiving data from the wireless devices (180). When the wireless devices (180) are positioned inside the case (100), an electrical component (110) inside the case operatively connects the capacitive sensing circuitry (120) and the transceiver (150) of the case (100) to the wireless devices (180). The case (100) further includes one or more processors (140) for controlling the capacitive sensing circuitry (120), the transceiver (150), and the electrical component (110).
    Type: Application
    Filed: September 7, 2018
    Publication date: July 2, 2020
    Applicants: Google LLC, Google LLC
    Inventors: Yao Ding, Kenneth Albanowski, Maksim Shmukler, Trevor Hermosillo, Chi Kin Benjamin Leung
  • Publication number: 20200135977
    Abstract: The disclosure describes various aspects of using optical elements monolithically integrated with light-emitting diode (LED) structures. In an aspect, a light emitting device includes a single LED structure having an active region and a single optical element disposed on the LED structure and configured to collimate and steer light emitted by the LED structure. One or more additional optical elements may also be disposed on the LED structure. In another aspect, a light emitting device may include multiple LED structures and a single optical element disposed on the multiple LED structures and configured to collimate and steer light emitted by the multiple LED structures. For each of these aspects, the LED structure(s) and the optical element(s) are made of a material that includes GaN, the LED structure(s) has a corresponding active region, and the LED structure(s) has a corresponding reflective contact disposed opposite to the optical element(s).
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Benjamin LEUNG, Miao-Chan TSAI, Sheila HURTT, Gang HE, Richard Peter SCHNEIDER, JR.
  • Publication number: 20200127482
    Abstract: A first electronic device, electronically coupled to a second device for supplying a charge to the second electronic device, tracks the voltage requirements of the second device and dynamically adjusts its output voltage upwards or downwards to match such requirements. The second electronic device may provide feedback to the first electronic device through a feedback loop. The feedback may include an indication of the voltage requirements and/or instructions for adjusting the voltage output of the first electronic device. The second device may be, for example, a wearable audio device, while the first device is a case for the wearable audio device.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Inventors: Yao Ding, Trevor Hermosillo, Maksim Shmukler, Chi Kin Benjamin Leung