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公开(公告)号：US11025347B2
公开(公告)日：2021-06-01
申请号：US16921421
申请日：2020-07-06
Applicant: Apple Inc.
Inventor： Xinping Zeng , Vusthla Sunil Reddy , Peter M. Agboh
IPC: H04B15/00 , H03H21/00 , H04B17/309 , H04B5/00
Abstract: Systems, methods, and devices are provided for compensating for distortion of a contactless communication channel. The electronic device may include a radio frequency system that itself includes antenna to transmit and receive data using near-field communication (NFC) and an NFC signal processing circuitry. The NFC signal processing circuitry may receive an NFC signal via a communication channel formed between the electronic device and another electronic device and may determine a baseband reference waveform associated with the electromagnetic NFC signal and may determine an error between a portion of the electromagnetic NFC signal and the baseband reference waveform. Furthermore, the NFC signal processing circuitry may determine whether the error is outside of an acceptable error threshold range and, in response to the error being outside of the acceptable error threshold range, train a filter response of the NFC signal processing circuitry to estimate the communication channel.
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公开(公告)号：US11005533B2
公开(公告)日：2021-05-11
申请号：US16571027
申请日：2019-09-13
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：US10707972B1
公开(公告)日：2020-07-07
申请号：US16356774
申请日：2019-03-18
Applicant: Apple Inc.
Inventor： Xinping Zeng , Vusthla Sunil Reddy , Peter M. Agboh
IPC: H04B15/00 , H04B17/309 , H03H21/00 , H04B5/00
Abstract: Systems, methods, and devices are provided for compensating for distortion of a contactless communication channel. The electronic device may include a radio frequency system that itself includes antenna to transmit and receive data using near-field communication (NFC) and an NFC signal processing circuitry. The NFC signal processing circuitry may receive an NFC signal via a communication channel formed between the electronic device and another electronic device and may determine a baseband reference waveform associated with the electromagnetic NFC signal and may determine an error between a portion of the electromagnetic NFC signal and the baseband reference waveform. Furthermore, the NFC signal processing circuitry may determine whether the error is outside of an acceptable error threshold range and, in response to the error being outside of the acceptable error threshold range, train a filter response of the NFC signal processing circuitry to estimate the communication channel.
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公开(公告)号：US10547290B2
公开(公告)日：2020-01-28
申请号：US15703703
申请日：2017-09-13
Applicant: Apple Inc.
Inventor： Chia Yiaw Chong , Mohit Narang , Peter M. Agboh , Hsin-Yuo Liu , Sultan R. Helmi , Tursunjan Yasin , Ye Chen
Abstract: Systems, methods, and devices are provided to efficiently share an antenna between multiple communication systems and allow for the communication systems to be simultaneously connected to the antenna with less attenuation and/or no fluctuation in signal strength. Communication circuitry may include an antenna that transmits and receives electromagnetic radiation. The communication circuitry may also include an antenna port that provides primary access to the antenna with a first attenuation via an antenna port input. Additionally, the communication circuitry may include a coupler attached to the antenna port. The coupler may provide secondary access to the antenna with a second attenuation.
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公开(公告)号：US10340967B2
公开(公告)日：2019-07-02
申请号：US15716430
申请日：2017-09-26
Applicant: Apple Inc.
Inventor： Xinping Zeng , Mohit Narang , Peter M. Agboh , Vusthla Sunil Reddy
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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Patent Agency Ranking
公开(公告)号：US20190098435A1
公开(公告)日：2019-03-28
申请号：US15716712
申请日：2017-09-27
Applicant: Apple Inc.
Inventor： Xinping Zeng , Peter M. Agboh , Vusthla Sunil Reddy
Abstract: An electronic device includes a transmitter configured to generate a signal. The electronic device also includes tuning circuitry coupled to the transmitter, wherein the tuning circuitry comprises a variable capacitance element and at least one fixed capacitance element having a fixed capacitance, wherein the variable capacitance element is configured to provide a dynamic capacitance based upon a voltage value related to a determined phase difference between the signal and a second signal, wherein the tuning circuitry is configured to adjust a frequency of the first signal to generate a tuned signal based upon a total capacitance comprising the fixed capacitance and the dynamic capacitance. The electronic device further includes an antenna coupled to the tuning circuitry and configured to generate an electromagnetic field based on the tuned signal.
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公开(公告)号：US10206236B2
公开(公告)日：2019-02-12
申请号：US15391953
申请日：2016-12-28
Applicant: APPLE INC.
Inventor： Hsin-Yuo Liu , Ruben Caballero , Mohit Narang , Peter M. Agboh , Paul V. Flynn , Qiong Wu , Nicholas M. McDonnell , Navid Damji , Ming Hu , Wen Zhao
Abstract: A device and method selects an antenna configuration. The method performed at a user equipment includes determining at least one communication functionality that is being used, each communication functionality configured to utilize at least one antenna in a multi-antenna arrangement of the user equipment. The method includes receiving a first indication of whether a cellular communication functionality is being used, the cellular communication functionality configured to utilize at least one antenna in the multi-antenna arrangement. The method includes receiving a second indication of whether a coexistence condition is present. The method includes determining an antenna configuration for the multi-antenna arrangement to be used by the determined communication functionality based upon the determined communication functionality, the first indication, and the second indication. The method includes configuring the multi-antenna arrangement for the determined communication functionality based upon the antenna configuration.
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公开(公告)号：US10178711B2
公开(公告)日：2019-01-08
申请号：US15708584
申请日：2017-09-19
Applicant: APPLE INC.
Inventor： Lei Li , Xiaojun Chen , Vusthla Sunil Reddy , Peter M. Agboh , Mohit Narang
Abstract: Exemplary embodiments include a system having a first wireless audio output device and a second wireless audio output device. One of the first or second audio output devices is configured to one of connect as a slave to a source device in a first piconet and connect as a master to the other one of the first or second audio output devices in a second piconet. The one of the first or second wireless audio output devices determines whether an audio packet transmitted by the source device via the first piconet was received by the first wireless audio output device and the second wireless audio output device, and, when at least one of the first wireless audio output device or the second wireless audio output device did not receive the audio packet, the audio packet is exchanged between the first and second wireless audio output devices via the second piconet.
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公开(公告)号：US09717109B2
公开(公告)日：2017-07-25
申请号：US15170586
申请日：2016-06-01
Applicant: Apple Inc.
Inventor： Xi Yang , Hsin-Yuo Liu , Indranil S. Sen , Vusthla Sunil Reddy , Peter M. Agboh , Mohit Narang , Ruben Caballero , Qiyang Wu
CPC classification number: H04W76/14 , H04B17/318 , H04W4/80 , H04W8/005 , H04W12/06 , H04W84/042 , H04W84/12
Abstract: To establish a connection between electronic devices some embodiments include a system, method, and/or computer program product for password pairing user-interface devices in wireless proximity. A first electronic device (e.g., a keyboard) transmits an advertising packet, and receives a password, where the password has been generated by a second electronic device (e.g., a smartphone) and the password enables pairing between the first electronic device and the second electronic device. The first electronic device transmits a message including the password to the second electronic device, where the second electronic device is within a predefined range of the first electronic device. In some embodiments the first device receives a command from the second electronic device to transition to a discovery mode, transitions to the discovery mode, and transmits a confirmation to the second electronic device that the first device is in the discovery mode.
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公开(公告)号：US09516493B2
公开(公告)日：2016-12-06
申请号：US14712805
申请日：2015-05-14
Applicant: Apple Inc.
Inventor： Adam T. Dohner , Ruben Caballero , Mohit Narang , Xinping Zeng , Vusthla Sunil Reddy , Peter M. Agboh
CPC classification number: H04W8/22 , H04R29/00 , H04R2410/00 , H04W4/02 , H04W4/80
Abstract: This application relates to systems, methods, and apparatus for testing operability of a mobile device with a reader device. In some embodiments, a testing system is set forth for automatically placing the mobile device proximate to the reader device in order to initiate a wireless transaction between the mobile device and the reader device. Depending on whether the mobile device is determined to be operable with the reader device, the testing system can automatically place the mobile device proximate to another reader device for testing. In this way, reductions in testing time can be manifested as a result of automating the testing process.
Abstract translation: 本申请涉及用于测试具有读取器设备的移动设备的可操作性的系统，方法和设备。 在一些实施例中，提出了一种用于将移动设备自动放置在靠近读取器设备的测试系统，以便发起移动设备和读取器设备之间的无线交易。 取决于移动设备是否被确定为与读取器设备可操作，测试系统可以自动将移动设备放置在另一个读取器设备附近进行测试。 以这种方式，测试时间的缩短可以表现为自动化测试过程的结果。
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