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公开(公告)号：US11134328B2
公开(公告)日：2021-09-28
申请号：US16878556
申请日：2020-05-19
申请人： Apple Inc.
发明人： Jared M. Kole , Daniel R. Bloom , Audrey L. Sheng , Tian Shi Li , Eugene Antony Whang , Edward Siahaan , Phillip Qian , Alex C. Hellwig , Oliver M. Hewitt , Yuta Kuboyama , Christopher S. Erickson , Sneha Kadetotad , Edwin J. Corona Aparicio , Rajesh Anantharaman , Jacob E. Mattingley , Tsu-Hui Lin , Robert D. Zupke , Dustin A. Hatfield , Axit H. Patel
IPC分类号： H04R1/10 , H04R5/033 , H04R5/04 , G10K11/178
摘要： This disclosure includes several different features suitable for use in circumaural and supra-aural headphones designs. Designs that include earpad assemblies that improve acoustic isolation are discussed. User convenience features that include automatically detecting the orientation of the headphones on a user's head are also discussed. Various power-saving features, design features, sensor configurations and user comfort features are also discussed.
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公开(公告)号：US20190081516A1
公开(公告)日：2019-03-14
申请号：US15875127
申请日：2018-01-19
申请人： Apple Inc.
摘要： A wireless power transmission system has a wireless power receiving device that is located on a charging surface of a wireless power transmitting device. The wireless power receiving device has a wireless power receiving coil and the wireless power transmitting device has a wireless power transmitting coil array. Signal measurement circuitry coupled to the coil array may make measurements while the control circuitry uses the inverter circuitry to apply excitation signals to each of the coils. Foreign objects on the coil array such as metallic objects without wireless power receiving coils can be detected using foreign object detection. When multiple wireless power receiving devices are present on the wireless power transmitting device, steps may be taken to isolate measurements from the coils associated with each wireless power receiving device. Foreign object detection may then be performed on these modified measurements.
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公开(公告)号：US20190074722A1
公开(公告)日：2019-03-07
申请号：US15875418
申请日：2018-01-19
申请人： Apple Inc.
摘要： A wireless power transmission system has a wireless power receiving device with a wireless power receiving coil that is located on a charging surface of a wireless power transmitting device with a wireless power transmitting coil array. Control circuitry in the wireless power transmitting device may use inverter circuitry to supply alternating-current signals to coils in the coil array, thereby transmitting wireless power signals. The control circuitry may also be used to detect foreign objects on the coil array such as metallic objects without wireless power receiving coils. For example, control circuitry may use inductance measurements from the coils in the coil array to identify segments of the coil array that correspond to potential wireless power receiving devices. The control circuitry may control wireless power transmission based on a comparison between the number of identified segments corresponding to potential wireless power receiving devices and a number of received device-identifiers.
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公开(公告)号：US20200280786A1
公开(公告)日：2020-09-03
申请号：US16878556
申请日：2020-05-19
申请人： Apple Inc.
发明人： Jared M. Kole , Daniel R. Bloom , Audrey L. Sheng , Tian Shi Li , Eugene Antony Whang , Edward Siahaan , Phillip Qian , Alex C. Hellwig , Oliver M. Hewitt , Yuta Kuboyama , Christopher S. Erickson , Sneha Kadetotad , Edwin J. Corona Aparicio , Rajesh Anantharaman , Jacob E. Mattingley , Tsu-Hui Lin , Robert D. Zupke , Dustin A. Hatfield , Axit H. Patel
摘要： This disclosure includes several different features suitable for use in circumaural and supra-aural headphones designs. Designs that include earpad assemblies that improve acoustic isolation are discussed. User convenience features that include automatically detecting the orientation of the headphones on a user's head are also discussed. Various power-saving features, design features, sensor configurations and user comfort features are also discussed.
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公开(公告)号：US11025098B2
公开(公告)日：2021-06-01
申请号：US15875287
申请日：2018-01-19
申请人： Apple Inc.
IPC分类号： H02J50/60 , H02J7/02 , H02J50/12 , G08B21/18 , G06K9/62 , G01R27/26 , H01F38/14 , H04B5/00 , G08B3/10 , G08B5/22
摘要： A wireless power transmission system has a wireless power receiving device with a wireless power receiving coil that is located on a charging surface of a wireless power transmitting device with a wireless power transmitting coil array. Control circuitry in the wireless power transmitting device may use inverter circuitry to supply alternating-current signals to coils in the coil array, thereby transmitting wireless power signals. The control circuitry may also be used to detect foreign objects on the coil array such as metallic objects without wireless power receiving coils. For example, control circuitry may use inductance measurements from the coils in the coil array to determine a probability value indicative of whether a foreign object is present on the charging surface. The control circuitry may compare the probability value to a threshold and take suitable action in response to the comparison.
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公开(公告)号：US10236725B1
公开(公告)日：2019-03-19
申请号：US15875418
申请日：2018-01-19
申请人： Apple Inc.
摘要： A wireless power transmission system has a wireless power receiving device with a wireless power receiving coil that is located on a charging surface of a wireless power transmitting device with a wireless power transmitting coil array. Control circuitry in the wireless power transmitting device may use inverter circuitry to supply alternating-current signals to coils in the coil array, thereby transmitting wireless power signals. The control circuitry may also be used to detect foreign objects on the coil array such as metallic objects without wireless power receiving coils. For example, control circuitry may use inductance measurements from the coils in the coil array to identify segments of the coil array that correspond to potential wireless power receiving devices. The control circuitry may control wireless power transmission based on a comparison between the number of identified segments corresponding to potential wireless power receiving devices and a number of received device-identifiers.
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公开(公告)号：US10797534B2
公开(公告)日：2020-10-06
申请号：US15875127
申请日：2018-01-19
申请人： Apple Inc.
摘要： A wireless power transmission system has a wireless power receiving device that is located on a charging surface of a wireless power transmitting device. The wireless power receiving device has a wireless power receiving coil and the wireless power transmitting device has a wireless power transmitting coil array. Signal measurement circuitry coupled to the coil array may make measurements while the control circuitry uses the inverter circuitry to apply excitation signals to each of the coils. Foreign objects on the coil array such as metallic objects without wireless power receiving coils can be detected using foreign object detection. When multiple wireless power receiving devices are present on the wireless power transmitting device, steps may be taken to isolate measurements from the coils associated with each wireless power receiving device. Foreign object detection may then be performed on these modified measurements.
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公开(公告)号：US20190074730A1
公开(公告)日：2019-03-07
申请号：US15875287
申请日：2018-01-19
申请人： Apple Inc.
摘要： A wireless power transmission system has a wireless power receiving device with a wireless power receiving coil that is located on a charging surface of a wireless power transmitting device with a wireless power transmitting coil array. Control circuitry in the wireless power transmitting device may use inverter circuitry to supply alternating-current signals to coils in the coil array, thereby transmitting wireless power signals. The control circuitry may also be used to detect foreign objects on the coil array such as metallic objects without wireless power receiving coils. For example, control circuitry may use inductance measurements from the coils in the coil array to determine a probability value indicative of whether a foreign object is present on the charging surface. The control circuitry may compare the probability value to a threshold and take suitable action in response to the comparison.
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