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公开(公告)号：US11353390B2
公开(公告)日：2022-06-07
申请号：US16725951
申请日：2019-12-23
Applicant: Apple Inc.
Inventor： Miaolei Yan , Gregory B. Arndt , Mehmet Mutlu
IPC: G01B9/02056 , G01N15/06 , H03M1/12 , G01B9/02017
Abstract: A portable communication device includes one or more optical detectors to generate an analog signal in response to a change in an intra-cavity or an emitted optical power of a light source due to light backscattered from a particle and an application-specific integrated circuit (ASIC). The particle is illuminated via a light source. The ASIC includes an analog-to-digital converter (ADC) circuit, a digital delay circuit, a particle detector module and a processor. The ADC converts the analog signal to a digital signal. The digital delay circuit can store the digital signal for a predetermined or dynamically variable time interval. The particle detector module can analyze the digital signal and can generate an enable signal upon detecting a particle signature in the digital signal. The processor is coupled to the digital delay circuit and can start processing the digital signal in response to the enable signal.
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12.发明授权公开(公告)号：US11280714B2
公开(公告)日：2022-03-22
申请号：US16547466
申请日：2019-08-21
Applicant: Apple Inc.
Inventor： Omid Momtahan , Mehmet Mutlu , Miaolei Yan , Richard Yeh
Abstract: An apparatus for particulate matter (PM) measurement includes a first light source to generate a first light beam and a second light source disposed at a first distance from the first light source to generate a second light beam in parallel to the first light beam to illuminate a PM. The apparatus further includes a first light detector to measure a first timing corresponding to a first self-mixing signal resulting from a reflection and/or back-scattering of the first light beam from a PM, and a second light detector to measure a second timing corresponding to a second self-mixing signal resulting from a reflection and/or back-scattering of the second light beam from the PM. A processor can determine a first velocity of the PM based on a spatial separation between centers of the first light beam and the second light beam and a temporal separation between the first timing and the second timing.
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公开(公告)号：US20200319082A1
公开(公告)日：2020-10-08
申请号：US16833199
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Mehmet Mutlu , Miaolei Yan , Michael K. Brown , Richard Yeh
Abstract: Various sensors, including particulate matter sensors, are described. One particulate matter sensor includes a self-mixing interferometry sensor and a set of one or more optical elements. The set of one or more optical elements is positioned to receive an optical emission of the self-mixing interferometry sensor, split the optical emission into multiple beams, and direct each beam of the multiple beams in a different direction. The self-mixing interferometry sensor is configured to generate particle speed information for particles passing through respective measurement regions of the multiple beams.
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14.发明申请公开(公告)号：US20200064249A1
公开(公告)日：2020-02-27
申请号：US16547466
申请日：2019-08-21
Applicant: Apple Inc.
Inventor： Omid MOMTAHAN , Mehmet Mutlu , Miaolei Yan , Richard Yeh
Abstract: An apparatus for particulate matter (PM) measurement includes a first light source to generate a first light beam and a second light source disposed at a first distance from the first light source to generate a second light beam in parallel to the first light beam to illuminate a PM. The apparatus further includes a first light detector to measure a first timing corresponding to a first self-mixing signal resulting from a reflection and/or back-scattering of the first light beam from a PM, and a second light detector to measure a second timing corresponding to a second self-mixing signal resulting from a reflection and/or back-scattering of the second light beam from the PM. A processor can determine a first velocity of the PM based on a spatial separation between centers of the first light beam and the second light beam and a temporal separation between the first timing and the second timing.
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公开(公告)号：US10462544B2
公开(公告)日：2019-10-29
申请号：US16053628
申请日：2018-08-02
Applicant: Apple Inc.
Inventor： Miaolei Yan , David MacNeil , Michael K. Brown , Richard Yeh
Abstract: A portable communication device includes a transducer enclosed in an enclosure. An opening allows flow of air between the transducer enclosed in the enclosure and a surrounding environment. The enclosure protects the transducer from misreading due to occlusion of environmental aggressors on the transducer. The enclosure is configured to repel the environmental aggressors away from a surface of the transducer and to keep a portion of the opening unclogged to maintain an air flow to the transducer.
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Patent Agency Ranking
16.发明授权公开(公告)号：US11351285B2
公开(公告)日：2022-06-07
申请号：US16258432
申请日：2019-01-25
Applicant: Apple Inc.
Inventor： Michael K. Brown , Ashwin Balasubramanian , Miaolei Yan
Abstract: A portable communication device includes an apparatus for environmental sensing. The apparatus includes a housing, one or more environmental sensors and an ozone source. The housing includes one or more ports for allowing air flow between the surrounding environment and a cavity of the housing. The environmental sensors are coupled to the housing and can sense an environmental agent included in the air flow. The ozone source can generate ozone gas within the cavity of the housing to decompose unwanted organic compounds inside the port.
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公开(公告)号：US11211515B2
公开(公告)日：2021-12-28
申请号：US16287965
申请日：2019-02-27
Applicant: Apple Inc.
Inventor： Tongbi T. Jiang , Miaolei Yan
Abstract: A device includes a semiconductor chip, and a semiconductor chip package in which the semiconductor chip is packaged. The semiconductor chip has a first major surface opposite a second major surface, and a set of four edges extending between the first major surface and the second major surface. The semiconductor chip package includes at least first and second electrodes exposed to an exterior of the semiconductor chip package and positioned apart from the semiconductor chip. The at least first and second electrodes overlap only one edge of the semiconductor chip. The semiconductor chip package also includes a filler that is molded between the semiconductor chip and each of the at least first and second electrodes.
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18.发明授权公开(公告)号：US11112235B2
公开(公告)日：2021-09-07
申请号：US16833271
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Mehmet Mutlu , Miaolei Yan
IPC: G01B9/02 , G01N15/06 , G01N15/10 , G01S7/4912 , G01S17/58
Abstract: A portable electronic device is operable in a particulate matter concentration mode where the portable electronic device uses a self-mixing interferometry sensor to emit a beam of coherent light from an optical resonant cavity, receive a reflection or backscatter of the beam into the optical resonant cavity, produce a self-mixing signal resulting from a reflection or backscatter of the beam of coherent light, and determine a particle velocity and/or particulate matter concentration using the self-mixing signal. The portable electronic device is also operable in an absolute distance mode where the portable electronic device determines whether or not an absolute distance determined using the self-mixing signal is outside or within a particulate sensing volume associated with the beam of coherent light. If not, the portable electronic device may determine a contamination and/or obstruction is present that may result in inaccurate particle velocity and/or particulate matter concentration determination.
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公开(公告)号：US20200274020A1
公开(公告)日：2020-08-27
申请号：US16287965
申请日：2019-02-27
Applicant: Apple Inc.
Inventor： Tongbi T. Jiang , Miaolei Yan
Abstract: A device includes a semiconductor chip, and a semiconductor chip package in which the semiconductor chip is packaged. The semiconductor chip has a first major surface opposite a second major surface, and a set of four edges extending between the first major surface and the second major surface. The semiconductor chip package includes at least first and second electrodes exposed to an exterior of the semiconductor chip package and positioned apart from the semiconductor chip. The at least first and second electrodes overlap only one edge of the semiconductor chip. The semiconductor chip package also includes a filler that is molded between the semiconductor chip and each of the at least first and second electrodes.
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20.发明申请公开(公告)号：US20200237947A1
公开(公告)日：2020-07-30
申请号：US16258432
申请日：2019-01-25
Applicant: Apple Inc.
Inventor： Michael K. BROWN , Ashwin Balasubramanian , Miaolei Yan
IPC: A61L9/03
Abstract: A portable communication device includes an apparatus for environmental sensing. The apparatus includes a housing, one or more environmental sensors and an ozone source. The housing includes one or more ports for allowing air flow between the surrounding environment and a cavity of the housing. The environmental sensors are coupled to the housing and can sense an environmental agent included in the air flow. The ozone source can generate ozone gas within the cavity of the housing to decompose unwanted organic compounds inside the port.
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