Patents by Inventor Geng Xiang Lee
Geng Xiang Lee 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: 11490181Abstract: A device with water drainage for a speaker using a three-dimensional canopy shaped retainer and hydrophobic mesh is provided. The device includes a three-dimensional (3D) retainer having a canopy shape with an outer side and an inner side, the outer side having a generally convex shape and the inner side having a generally concave shape, the 3D retainer comprising apertures therethrough. The device further includes a hydrophobic mesh located at least at the apertures at the outer side of the 3D retainer, the hydrophobic mesh being air-permeable.Type: GrantFiled: July 12, 2021Date of Patent: November 1, 2022Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Ji Ying Choong, Kuang Eng Lim, Geng Xiang Lee, Sze Yen Lim
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Patent number: 11381894Abstract: A device with linear slots for water drainage is provided. The device comprises: a bezel covering a cavity and a microphone/speaker mounted therein, the bezel having outer and inner faces, the inner face facing the cavity; linear slots through the bezel between the faces, the linear slots being obliquely angled relative to an upright axis of the bezel; linear slats separating the linear slots at the bezel and forming sides thereof having dimensions selected to promote formation of water droplets thereon of a size which overcome water surface tension and flow out of the linear slots when the bezel is exposed to one or more of mist, rain, water and humidity; and one or more recesses at the inner face, adjacent to the linear slots, the one or more recesses to collect water from the water droplets as the water flows out of the linear slots.Type: GrantFiled: August 5, 2020Date of Patent: July 5, 2022Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Geng Xiang Lee, Chi T. Tran, Charles B. Harmke, Ji Ying Choong, Kuang Eng Lim
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Publication number: 20220046346Abstract: A device with linear slots for water drainage is provided. The device comprises: a bezel covering a cavity and a microphone/speaker mounted therein, the bezel having outer and inner faces, the inner face facing the cavity; linear slots through the bezel between the faces, the linear slots being obliquely angled relative to an upright axis of the bezel; linear slats separating the linear slots at the bezel and forming sides thereof having dimensions selected to promote formation of water droplets thereon of a size which overcome water surface tension and flow out of the linear slots when the bezel is exposed to one or more of mist, rain, water and humidity; and one or more recesses at the inner face, adjacent to the linear slots, the one or more recesses to collect water from the water droplets as the water flows out of the linear slots.Type: ApplicationFiled: August 5, 2020Publication date: February 10, 2022Inventors: Geng Xiang LEE, Chi T. TRAN, Charles B. HARMKE, Ji Ying CHOONG, Kuang Eng LIM
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Patent number: 11240576Abstract: A device with water drainage for a speaker is provided. The device comprises: a housing having a cavity; a speaker mounted in the cavity; a hydrophobic mesh over at least a portion of the cavity, the hydrophobic mesh being air-permeable; a hydrophilic grill adjacent the hydrophobic mesh at a speaker-facing side of the hydrophilic grill, the hydrophilic grill comprising apertures therethrough, the hydrophobic mesh located at least at the apertures; and a bezel covering the hydrophilic grill, one or more of the housing and the bezel including drainage features.Type: GrantFiled: January 19, 2021Date of Patent: February 1, 2022Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Kuang Eng Lim, Sze Yen Lim, Geng Xiang Lee, Ji Ying Choong
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Patent number: 11134341Abstract: A method and apparatus for processing audio signals. One system includes a communication device including a transceiver configured to send and receive audio data, and a microphone configured to convert sound waves to a first audio signal. A speaker is configured to convert received electrical signals to an acoustic output and is configured to convert sound waves to a second audio signal. An electronic processor connected to the microphone and the speaker is configured to receive the first audio signal from the microphone, receive the second audio signal from the speaker, determine a correlation value between the first audio signal and the second audio signal, and compare the correlation value to a correlation threshold. In response to the correlation value being below the correlation threshold, the electronic processor generates an output signal based on the first audio signal and the second audio signal, and transmits the output signal.Type: GrantFiled: May 4, 2020Date of Patent: September 28, 2021Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Kar Meng Tang, Kurt S. Fienberg, Geng Xiang Lee, Lian Kooi Ng, Thean Hai Ooi
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Patent number: 11082774Abstract: Methods and systems for verification of an environmental seal provided by an encapsulant coating of a bottom-ported MEMS microphone package. A purposeful acoustic leak is provided on an upper surface of a package housing (in the form of an additional acoustic port) and a sealing material is applied to an outer surface of the package housing. A properly applied encapsulant coating will completely seal the additional acoustic port on the upper surface of the package housing. However, the placement of the additional acoustic port on the upper surface of the package housing will have a significant, detectable effect on the frequency response of the microphone if it is not completely sealed by the encapsulant coating. Accordingly, the environmental seal provided by the encapsulant coating is verified by confirming, based on the acoustic frequency response testing, that the encapsulant coating has effectively sealed the additional acoustic port on the upper surface of the package housing.Type: GrantFiled: December 23, 2019Date of Patent: August 3, 2021Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Andrew P. Miehl, Deborah A. Gruenhagen, Geng Xiang Lee, Karl F. Mueller
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Publication number: 20210195341Abstract: Methods and systems for verification of an environmental seal provided by an encapsulant coating of a bottom-ported MEMS microphone package. A purposeful acoustic leak is provided on an upper surface of a package housing (in the form of an additional acoustic port) and a sealing material is applied to an outer surface of the package housing. A properly applied encapsulant coating will completely seal the additional acoustic port on the upper surface of the package housing. However, the placement of the additional acoustic port on the upper surface of the package housing will have a significant, detectable effect on the frequency response of the microphone if it is not completely sealed by the encapsulant coating. Accordingly, the environmental seal provided by the encapsulant coating is verified by confirming, based on the acoustic frequency response testing, that the encapsulant coating has effectively sealed the additional acoustic port on the upper surface of the package housing.Type: ApplicationFiled: December 23, 2019Publication date: June 24, 2021Inventors: ANDREW P. MIEHL, DEBORAH A. GRUENHAGEN, GENG XIANG LEE, KARL F. MUELLER
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Patent number: 10779067Abstract: A grille configured for shielding a microphone cavity. The grille includes a first side. The first side includes a first plurality of parallel slats defining a first plurality of channels extending along a first direction. The grille includes a second side opposite the first side. The second side includes a second plurality of parallel slats defining a second plurality of channels extending along a second direction at a first angle relative to the first direction. The first plurality of parallel slats and the second plurality of parallel slats define a lattice having a plurality of openings extending through the grille. The openings are configured to diffuse air moving across the lattice. The channels and slats are configured to induce capillary action on water coming in contact with the lattice to drain water from the openings and the microphone cavity.Type: GrantFiled: December 20, 2018Date of Patent: September 15, 2020Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Charles B. Harmke, Oleg G. Harizanov, Geng Xiang Lee, Kuang Eng Lim, Michael Page, William Robertson
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Publication number: 20200204894Abstract: A grille configured for shielding a microphone cavity. The grille includes a first side. The first side includes a first plurality of parallel slats defining a first plurality of channels extending along a first direction. The grille includes a second side opposite the first side. The second side includes a second plurality of parallel slats defining a second plurality of channels extending along a second direction at a first angle relative to the first direction. The first plurality of parallel slats and the second plurality of parallel slats define a lattice having a plurality of openings extending through the grille. The openings are configured to diffuse air moving across the lattice. The channels and slats are configured to induce capillary action on water coming in contact with the lattice to drain water from the openings and the microphone cavity.Type: ApplicationFiled: December 20, 2018Publication date: June 25, 2020Inventors: Charles B. Harmke, Oleg G. Harizanov, Geng Xiang Lee, Kuang Eng Lim, Michael Page, William Robertson
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Patent number: 10375760Abstract: A method and apparatus for notifying a user that a device needs to be serviced is provided herein. During operation, a device will determine that at least the first device has been serviced or needs to be serviced. When this occurs, the device will determine members of a personal-area-network (PAN) that includes/included the first device, and notify a user that the PAN members should be serviced as well.Type: GrantFiled: June 9, 2017Date of Patent: August 6, 2019Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Geng Xiang Lee, Anoop Sehgal Paras Ram, Bing Qin Lim, Rm Muthaiah Ramanathan, Chun Meng Tan
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Patent number: 10049420Abstract: A method and apparatus for providing a response/suggestion to a user by a digital assistant is provided herein. During operation the digital assistant will have access to devices connected to it via a personal-area network (PAN). The digital assistant will then tailor any response/suggestion to the user based on PAN devices associated with the network.Type: GrantFiled: July 18, 2017Date of Patent: August 14, 2018Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Geng Xiang Lee, Kok Khian Ng, Luiloon Stephen Kuan, Raamkumar Krishnan, Kong Chin Chee
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Patent number: 9450636Abstract: An intrinsically safe audio power circuit includes redundant electronic fuses disposed between the power input of an audio power amplifier and the battery source of the portable two-way radio device. The electronic fuse circuits are connected in series with each other, and each electronic fuse circuit includes a series switch transistor that can shut off the flow of current between the battery and the audio power amplifier. Each electronic fuse circuit also includes a current sense portion, and when the current through the electronic fuse circuits reaches a current threshold, it will shut off its series switch transistor using an active bias circuit in order to ensure sufficiently rapid shut off.Type: GrantFiled: December 30, 2014Date of Patent: September 20, 2016Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Chen Kok Yeoh, Friedrich Josef Bollmann, Geng Xiang Lee @ Titus Lee, Joo Yih See
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Publication number: 20160191104Abstract: An intrinsically safe audio power circuit includes redundant electronic fuses disposed between the power input of an audio power amplifier and the battery source of the portable two-way radio device. The electronic fuse circuits are connected in series with each other, and each electronic fuse circuit includes a series switch transistor that can shut off the flow of current between the battery and the audio power amplifier. Each electronic fuse circuit also includes a current sense portion, and when the current through the electronic fuse circuits reaches a current threshold, it will shut off its series switch transistor using an active bias circuit in order to ensure sufficiently rapid shut off.Type: ApplicationFiled: December 30, 2014Publication date: June 30, 2016Inventors: CHEN KOK YEOH, FRIEDRICH JOSEF BOLLMANN, GENG XIANG LEE @ TITUS LEE, JOO YIH SEE