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公开(公告)号：US20190058507A1
公开(公告)日：2019-02-21
申请号：US15788688
申请日：2017-10-19
Applicant: Apple Inc.
Inventor： Xinping ZENG , Peter M. AGBOH , Vusthla Sunil REDDY
CPC classification number: H04B5/0062 , H04L7/04
Abstract: A transceiver that implements a high dynamic range NFC reader mode receiver may include a transmitter circuit to generate a transmit (TX) signal for communication to a first device via an antenna. The transceiver may further include a receiver circuit that is in communication with the first device via the antenna. The receiver circuit includes a mixer circuit and an adder circuit. The mixer circuit mixes a carrier signal with a first signal to generate a baseband signal. The adder circuit is coupled to the antenna and produces the first signal by adding a receive (RX) signal with a second signal to reduce a component of the TX signal included in the RX signal. The second signal is produced by processing a TX clock signal generated by the transmitter circuit.
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公开(公告)号：US20210391885A1
公开(公告)日：2021-12-16
申请号：US17446440
申请日：2021-08-30
Applicant: Apple Inc.
Inventor： Stephen T. SCHOOLEY , Ross D. ARRIENS , Sara RUSIGNUOLO , Craig S. OGDEN , Ho Cheung CHUNG , Vusthla Sunil REDDY , Jeremy D. BATAILLOU , Xinping ZENG
IPC: H04B1/3888 , H04B1/3827 , H04M1/72412 , H04M1/72454
Abstract: Accessory devices are described herein. An accessory device may include a receptacle for receiving an electronic device. The accessory device may include a case that covers the housing of the electronic device, or a folio that additionally includes a cover can conceal the display of the electronic device. Accessory devices described herein further include wireless circuitry used to communicate with wireless circuitry in the electronic device. The wireless circuitry can be used for various functions and features. For instance, the wireless circuitry in the accessory device can respond to authentication requests from the electronic device, and/or to send authentication requests to the electronic device. Further, the wireless circuitry in the accessory device can send information to the electronic device. Such information may include properties of the accessory device, or information stored on the accessory device that is presented on a display of the electronic device.
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公开(公告)号：US20190097664A1
公开(公告)日：2019-03-28
申请号：US15716430
申请日：2017-09-26
Applicant: Apple Inc.
Inventor： Xinping ZENG , Mohit Narang , Peter M. Agboh , Vusthla Sunil Reddy
CPC classification number: H04B1/30 , H03D1/00 , H03D1/22 , H03D3/005 , H03D3/008 , H03H7/06 , H04B5/0081 , H04B2001/305
Abstract: A transceiver that allows dynamic high-pass filter (HPF) cut-off frequency adjustment may include a mixer circuit to mix a local oscillator (LO) signal with a receive (RX) signal received from a transmitter to generate a baseband signal. The transceiver may further include a high-pass filter (HPF) having an adjustable cut-off frequency that is used to reduce a DC offset of the baseband signal. A control circuit can dynamically control components of the HPF to set the adjustable cut-off frequency at a first frequency during a first time period and at a second frequency during a second time period.
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公开(公告)号：US20240267085A1
公开(公告)日：2024-08-08
申请号：US18639893
申请日：2024-04-18
Applicant: Apple Inc.
Inventor： Vincent CHAUVIN , Peter M. AGBOH , Vusthla Sunil REDDY , Xinping ZENG
Abstract: A device implementing a system for NFC communication includes a processor configured to receive, from an other device, pulse signals for detecting proximity of the device with the other device. The processor is further configured to determine an interval at which the pulse signals are received from the other device. The processor is further configured to determine a time when the other device is expected to transmit a subsequent pulse signal based at least in part on the determined interval. The processor is further configured to transmit a signal to the other device based on the determined time when the other device is expected to transmit the subsequent pulse signal.
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公开(公告)号：US20220060210A1
公开(公告)日：2022-02-24
申请号：US17454005
申请日：2021-11-08
Applicant: Apple Inc.
Inventor： Stephen T. SCHOOLEY , Ross D. ARRIENS , Sara RUSIGNUOLO , Craig S. OGDEN , Ho Cheung CHUNG , Vusthla Sunil REDDY , Jeremy D. BATAILLOU , Xinping ZENG
IPC: H04B1/3888 , H04B1/3827 , H04M1/72454 , H04M1/72412
Abstract: Accessory devices are described herein. An accessory device may include a receptacle for receiving an electronic device. The accessory device may include a case that covers the housing of the electronic device, or a folio that additionally includes a cover can conceal the display of the electronic device. Accessory devices described herein further include wireless circuitry used to communicate with wireless circuitry in the electronic device. The wireless circuitry can be used for various functions and features. For instance, the wireless circuitry in the accessory device can respond to authentication requests from the electronic device, and/or to send authentication requests to the electronic device. Further, the wireless circuitry in the accessory device can send information to the electronic device. Such information may include properties of the accessory device, or information stored on the accessory device that is presented on a display of the electronic device.
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Patent Agency Ranking
公开(公告)号：US20230275611A1
公开(公告)日：2023-08-31
申请号：US18144127
申请日：2023-05-05
Applicant: Apple Inc.
Inventor： Stephen T. SCHOOLEY , Ross D. ARRIENS , Sara RUSIGNUOLO , Craig S. OGDEN , Ho Cheung CHUNG , Vusthla Sunil REDDY , Jeremy D. BATAILLOU , Xinping ZENG
IPC: H04B1/3888 , H04B1/3827 , H04M1/72412 , H04M1/72454
CPC classification number: H04B1/3888 , H04B1/385 , H04M1/72412 , H04M1/72454 , H04B2001/3866 , H04W12/06
Abstract: Accessory devices are described herein. An accessory device may include a receptacle for receiving an electronic device. The accessory device may include a case that covers the housing of the electronic device, or a folio that additionally includes a cover can conceal the display of the electronic device. Accessory devices described herein further include wireless circuitry used to communicate with wireless circuitry in the electronic device. The wireless circuitry can be used for various functions and features. For instance, the wireless circuitry in the accessory device can respond to authentication requests from the electronic device, and/or to send authentication requests to the electronic device. Further, the wireless circuitry in the accessory device can send information to the electronic device. Such information may include properties of the accessory device, or information stored on the accessory device that is presented on a display of the electronic device.
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公开(公告)号：US20200313712A1
公开(公告)日：2020-10-01
申请号：US16517383
申请日：2019-07-19
Applicant: Apple Inc.
Inventor： Stephen T. SCHOOLEY , Ross D. ARRIENS , Sara RUSIGNUOLO , Craig S. OGDEN , Ho Cheung CHUNG , Vusthla Sunil REDDY , Jeremy D. BATAILLOU , Xinping ZENG
IPC: H04B1/3888 , H04M1/725 , H04B1/3827
Abstract: Accessory devices are described herein. An accessory device may include a receptacle for receiving an electronic device. The accessory device may include a case that covers the housing of the electronic device, or a folio that additionally includes a cover can conceal the display of the electronic device. Accessory devices described herein further include wireless circuitry used to communicate with wireless circuitry in the electronic device. The wireless circuitry can be used for various functions and features. For instance, the wireless circuitry in the accessory device can respond to authentication requests from the electronic device, and/or to send authentication requests to the electronic device. Further, the wireless circuitry in the accessory device can send information to the electronic device. Such information may include properties of the accessory device, or information stored on the accessory device that is presented on a display of the electronic device.
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公开(公告)号：US20200089922A1
公开(公告)日：2020-03-19
申请号：US16418933
申请日：2019-05-21
Applicant: Apple Inc.
Inventor： Vincent CHAUVIN , Peter M. AGBOH , Vusthla Sunil REDDY , Xinping ZENG
Abstract: A device implementing a system for NFC communication with a second device includes an antenna and a processor configured to transmit a pulse signal for detection of another device within proximity of the device, and to detect, in conjunction with transmission of the pulse signal, that a first value of a measurement parameter of the antenna satisfies an initial detection factor. The processor is further configured, in response to the detection, to set a confirmation detection factor for the measurement parameter of the antenna based at least in part on the first value of the measurement parameter of the antenna, to transmit a confirmation pulse signal, and to initiate a second polling for reception of data from the other device when a second value of the measurement parameter of the antenna detected in conjunction with transmission of the confirmation pulse signal satisfies the confirmation detection factor.
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公开(公告)号：US20220383005A1
公开(公告)日：2022-12-01
申请号：US17883552
申请日：2022-08-08
Applicant: Apple Inc.
Inventor： Vincent CHAUVIN , Peter M. AGBOH , Vusthla Sunil REDDY , Xinping ZENG
Abstract: A device implementing a system for NFC communication with a second device includes an antenna and a processor configured to transmit a pulse signal for detection of another device within proximity of the device, and to detect, in conjunction with transmission of the pulse signal, that a first value of a measurement parameter of the antenna satisfies an initial detection factor. The processor is further configured, in response to the detection, to set a confirmation detection factor for the measurement parameter of the antenna based at least in part on the first value of the measurement parameter of the antenna, to transmit a confirmation pulse signal, and to initiate a second polling for reception of data from the other device when a second value of the measurement parameter of the antenna detected in conjunction with transmission of the confirmation pulse signal satisfies the confirmation detection factor.
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公开(公告)号：US20210306032A1
公开(公告)日：2021-09-30
申请号：US17236986
申请日：2021-04-21
Applicant: Apple Inc.
Inventor： Vincent CHAUVIN , Peter M. AGBOH , Vusthla Sunil REDDY , Xinping ZENG
Abstract: A device implementing a system for NFC communication includes a processor configured to receive, from an other device, pulse signals for detecting proximity of the device with the other device. The processor is further configured to determine an interval at which the pulse signals are received from the other device. The processor is further configured to determine a time when the other device is expected to transmit a subsequent pulse signal based at least in part on the determined interval. The processor is further configured to transmit a signal to the other device based on the determined time when the other device is expected to transmit the subsequent pulse signal.
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