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

IPC: H03D1/22 ,  H03D3/00 ,  H03H7/06 ,  H04B1/30 ,  H04B5/00

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.

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

IPC: H04W4/00 ,  H04B5/00 ,  H04B5/02 ,  H01Q1/22 ,  H01Q1/52

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.

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

IPC: H04W84/18 ,  H04W88/04 ,  H04L5/00 ,  H04W72/08 ,  H04W72/04 ,  H04W88/06 ,  H04W4/80 ,  H04L1/00

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.

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

IPC: H04W76/02 ,  H04W4/00 ,  H04W8/00 ,  H04W12/06 ,  H04B17/318 ,  H04W84/04 ,  H04W84/12

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.

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

IPC: H04B17/00 ,  H04W8/22 ,  H04R29/00

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。

公开(公告)号：US20160249361A1

公开(公告)日：2016-08-25

申请号：US14850834

申请日：2015-09-10

Applicant: Apple Inc.

Inventor： Lei Li ,  Xiaojun Chen ,  Vusthla Sunil Reddy ,  Diego C. Hernandez ,  Peter M. Agboh ,  Mohit Narang ,  Ruben Caballero ,  Indranil S. Sen

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0064 ,  H04L5/006 ,  H04W72/0453 ,  H04W72/085 ,  H04W84/12

Abstract: In order to improve the quality of communication between electronic devices, one or more sub-channels used during communication between the electronic devices are dynamically modified based on one or more performance metrics and allowed transmit powers of the sub-channels. In particular, when the one or more performance metrics indicate that a distance between the electronic devices falls within a mid-range of distances, the one or more performance metrics may be used to guide selective changes to the sub-channels used during the communication based on the allowed transmit powers. The changes to the sub-channels used during the communication may increase, decrease or leave the total bandwidth unchanged. Moreover, by changing the sub-channels used during the communication, the allowed transmit power(s) of the sub-channel(s) used may be increased, which may improve the performance during the communication.

Abstract translation: 为了提高电子设备之间的通信质量，基于一个或多个性能度量和子信道的允许发送功率动态地修改在电子设备之间通信期间使用的一个或多个子信道。 特别地，当一个或多个性能度量指示电子设备之间的距离落在距离的中间范围内时，可以使用一个或多个性能度量来指导在基于通信期间使用的子信道的选择性改变 关于允许的发射功率。 在通信期间使用的子信道的改变可以增加，减少或保持总带宽不变。 此外，通过改变在通信期间使用的子信道，可以增加所使用的子信道的允许发送功率，这可以提高通信期间的性能。

公开(公告)号：US12015988B2

公开(公告)日：2024-06-18

申请号：US18178763

申请日：2023-03-06

Applicant: Apple Inc.

Inventor： Xi Yang ,  Jianxuan Tu ,  Qiyang Wu ,  Peter M. Agboh ,  Vusthla Sunil Reddy ,  Mark D. Neumann

IPC: H04W52/36 ,  H04W52/28 ,  H04W72/044 ,  H04W72/56

CPC classification number: H04W52/367 ,  H04W52/283 ,  H04W72/0473 ,  H04W72/56

Abstract: Manners of complying with SAR limits at a user equipment (UE) configured to establish a first communication connection using a first radio and a second communication connection using a second radio. The UE determines that a first application associated with the first communication connection is to be prioritized over a second application associated with the second communication connection, determines a specific absorption rate (SAR) value associated with the UE and modifies, responsive to the SAR value associated with the UE, a parameter associated with the first radio or the second radio based on at least the priority of the first application relative to the second application.

公开(公告)号：US11150693B2

公开(公告)日：2021-10-19

申请号：US14641135

申请日：2015-03-06

Applicant: APPLE INC.

Inventor： Vusthla Sunil Reddy ,  XinPing Zeng ,  Peter M. Agboh ,  Mohit Narang ,  Ruben Caballero

IPC: G06F1/16

Abstract: Systems and method for improving performance of a radio frequency system are provided. One embodiment describes a radio frequency system, which may be modified based upon a detected housing and/or accessory of an electronic device. The modifications may counteract impacts of the housings and/or accessories on the radio frequency transmission.

公开(公告)号：US11099072B2

公开(公告)日：2021-08-24

申请号：US16536245

申请日：2019-08-08

Applicant: Apple Inc.

Inventor： Sireesha Ramisetti ,  Chia-Chi Chen ,  Vijendrakumar K. Ashiwal ,  Peter M. Agboh ,  Vusthla Sunil Reddy

IPC: G01J3/42 ,  G01N21/3581

Abstract: Embodiments are disclosed for terahertz spectroscopy and imaging in dynamic environments. In an embodiment, a method comprises emitting a continuous electromagnetic (EM) wave in a terahertz (THz) frequency band into a dynamic environment. The EM THz wave is reflected off an object in the environment. A spectral response of a received signal indicative of the reflected EM wave is determined that includes absorption spectra at a frequency in the THz frequency band. The absorption spectra is indicative of a transmission medium in the environment. The spectral response of the received signal is compensated for fixed and frequency-specific losses. The compensated absorption spectra is compared with known absorption spectra of target transmission mediums. Based on results of the comparing, a particular target transmission medium is identified as being the transmission medium in the environment. The absorption spectra loss is used to determine a concentration level of the target transmission medium.

公开(公告)号：US20210051532A1

公开(公告)日：2021-02-18

申请号：US16540301

申请日：2019-08-14

Applicant: Apple Inc.

Inventor： Vusthla Sunil Reddy ,  Alejandro J. Marquez ,  Indranil S. Sen ,  Manjit S. Walia ,  Peter M. Agboh ,  Shang-Te Yang ,  Xiaoming Yu

IPC: H04W36/00 ,  H04W76/15 ,  H04W36/30 ,  H04W64/00

Abstract: Methods and apparatuses are presented to locate a wireless communication device. A target device may be out of range of a source device for normal ranging communications according to a first radio access technology (RAT), such as ultra wideband (UWB) communications. A source device may therefore modify communications according to the first RAT, to increase the transmit power, while removing the data payload. The target device may utilize the signal strength and angle of arrival of the modified communications to guide the user to move toward the source device, e.g., until the target device is within range to perform normal ranging communications. A second RAT, such as Bluetooth, may be used to communicate between the two devices while the target device is out of range of the first RAT. For example, the target device may use the second RAT to communicate to the source device to start/stop transmitting modified communications.