公开(公告)号：US20230354201A1

公开(公告)日：2023-11-02

申请号：US18220721

申请日：2023-07-11

Applicant: Apple Inc.

Inventor： Chia Yiaw Chong ,  Pablo Luis Vila Rodriguez ,  Sajeev Alakkatt Paleri ,  Qiong Wu ,  Kai Bai ,  Hsin-Yuo Liu ,  Peter M. Agboh ,  Derek Keith Shaeffer ,  Daya Krishna

IPC: H04W52/02 ,  H04W74/08

CPC classification number: H04W52/0274 ,  H04W72/0473 ,  H04W72/52 ,  H04W74/085

Abstract: The present disclosure relates to systems and methods for operating a control signal to communicate signals using a first antenna and a first frequency band in response to determining that intra-device operations are occurring or are expected to occur, that a first amount of energy received by the first antenna is less than a threshold amount of energy, and that the first antenna is unaffected by the intra-device operations. The control signal may also delay communication of the signals in response to determining that intra-device operations are occurring, and that first amount of energy is greater than or equal to the threshold amount of energy.

公开(公告)号：US11496983B2

公开(公告)日：2022-11-08

申请号：US14871913

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Chia Yiaw Chong ,  Hsin-Yuo Liu ,  Mohit Narang ,  Peter M. Agboh ,  Sathish Shanbhag Kota

IPC: H04W64/00 ,  H04W52/02 ,  H04W4/80 ,  H04B15/02 ,  H04W72/08 ,  H04W16/14 ,  H04W74/08

Abstract: A technique for reducing interference on conducted RF links involves a determination of active wireless channels in an electronic device. For example, the device can determine whether there are any active cellular, WiFi, and/or Bluetooth channels. If so, any active channels can be removed from a list of possible channels that can be used for generating the RF signals for the conducted RF link. If any idle channels remain available, one or more may be selected for use for the conducted RF link. Those idle channels having a higher offset from any active channels may be given a greater weight in the selection since they should be less likely to be subject to interference. If not, one of the least crowded active channels may be selected for use for the conducted RF link.

公开(公告)号：US20210041295A1

公开(公告)日：2021-02-11

申请号：US16536265

申请日：2019-08-08

Applicant: Apple Inc.

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

IPC: G01J3/433 ,  G01N21/3581

Abstract: Embodiments of a terahertz (THz) sensor module are disclosed for spectroscopy and imaging in a dynamic environment. In an embodiment, a terahertz (THz) sensor module comprises: a THz emitter configured to emit a THz beam into an environment; one or more movable micro-electromechanical system (MEMS) micromirrors; and one or more MEMS motors or actuators coupled to the one or more MEMS micromirrors. The one or more MEMS motors or actuators are configured to move the one or more MEMS micromirrors to change a direction of the THz beam in the environment. A THz receiver is configured to receive a reflection of the THz beam from a reflective object in the environment.

公开(公告)号：US10862567B2

公开(公告)日：2020-12-08

申请号：US15709360

申请日：2017-09-19

Applicant: Apple Inc.

Inventor： Lei Li ,  Peter M. Agboh ,  Xiaojun Chen ,  Qiyang Wu ,  Vusthla Sunil Reddy ,  Mohit Narang

IPC: H04B7/08 ,  H04B1/44 ,  H04B7/06 ,  H04L5/14 ,  H04B17/12 ,  H04B17/318 ,  H04W72/04

Abstract: A wireless communication device includes a number of radio-frequency (RF) antennas and one or more radio circuits. Each radio circuit includes a receive (RX) chain to process RX signals and a transmit (TX) chain to process TX signals. An RF switch network couples at least one RF antenna to at least one radio circuit. A baseband processor controls a configuration of the RF switch network. The baseband processor determines a plurality of parameters and controls the RF switch network based on at least one of the parameters. The parameters are determined during a training interval including at least an inter-frame space (IFS). The configuration of the RF switch network is based on the determined parameters and is employed for selection of an antenna to improve a link performance when used for communication of a next packet following the IFS.

公开(公告)号：US20200067565A1

公开(公告)日：2020-02-27

申请号：US16106354

申请日：2018-08-21

Applicant: Apple Inc.

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

IPC: H04B1/7103

Abstract: Methods and apparatuses are presented to reduce multiuser interference resulting from two or more overlapping ultra wideband (UWB) transmissions by randomizing the start time of packets and/or bursts within the packets. A random offset time may be generated for a packet, and transmission of the packet may be arbitrarily delayed by that random offset time, relative to an earlier time at which the packet is prepared for transmission. A random offset time may be generated for a pulse burst within a symbol of a packet, and transmission of the burst may be delayed by that random offset time, relative to a nominal transmission window within the symbol. The burst may therefore occupy a portion of a guard period following the nominal transmission window. Either procedure, or both procedures, may be used to reduce multiuser interference between two concurrently transmitted packets by randomizing overlap occurring between the bursts.

公开(公告)号：US10455392B2

公开(公告)日：2019-10-22

申请号：US15716712

申请日：2017-09-27

Applicant: Apple Inc.

Inventor： Xinping Zeng ,  Peter M. Agboh ,  Vusthla Sunil Reddy

IPC: H04B5/00 ,  H04B17/21 ,  H04W4/80 ,  H01Q1/52 ,  H01Q1/22 ,  H04B5/02

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：US10187856B2

公开(公告)日：2019-01-22

申请号：US15874678

申请日：2018-01-18

Applicant: Apple Inc.

Inventor： Mohit Narang ,  Peter M. Agboh ,  Qiyang Wu ,  Ruben Caballero ,  Vusthla Sunil Reddy ,  Xi Yang

IPC: H04W52/20 ,  H04L12/26 ,  H04W52/24 ,  H04W52/36 ,  H04W4/80

Abstract: A host device is configured to increase the power output by an internal amplifier of its wireless chipset in response to requests from a remote device. Once the internal amplifier has reached its maximum power, further requests for power increases from the remove device do not similarly lead to automatic power increases being delivered by a external amplifier of the host device. Rather, the host device determines the strength of the link between it and the remote device. If the signal strength is too low, it is an indication that the signal power output by the remote device may not be sufficient to maintain the link and that any further increases in signal power by the host device will have little or no effect on the link. However, if the signal strength from the remote device is sufficient, the host device determines an error rate between it and the remote device. If the error rate is sufficiently low to maintain the link, then the host device will not further increase its signal output power. However, if the error rate is too high, the host device will turn on and/or increase power from its external amplifier to boost the power of its output signal and, thus, improve the error rate between it and the remote device.

公开(公告)号：US20180084456A1

公开(公告)日：2018-03-22

申请号：US15708521

申请日：2017-09-19

Applicant: APPLE INC.

Inventor： Anatoli GOSTEV ,  Louay Alsakka ,  Axel Berny ,  Tad Dreier ,  Joachim Hammerschmidt ,  Lei Li ,  Xiaojun Chen ,  Vusthla Sunil Reddy ,  Peter M. Agboh ,  Mohit Narang

IPC: H04W28/04 ,  H04W84/18 ,  H04W76/02 ,  H04W4/00

Abstract: Exemplary embodiments include a system having a first wireless audio output device configured to connect to a source device via a first piconet and a second wireless audio output device configured to connect to the first wireless audio output device via a second piconet. A schedule of the first piconet includes a plurality of slots associated with an audio packet, a first subset of the slots used by the source device to transmit the audio packet, the first and second wireless audio output devices tuning to the first piconet to listen for the transmissions of the audio packet, and when, after a last one of the first subset of slots, the first or second wireless audio output devices did not receive the audio packet, the first and second wireless audio output devices exchange information via the second piconet such that the both wireless audio output device receive the audio packet.

公开(公告)号：US20170373819A1

公开(公告)日：2017-12-28

申请号：US15189874

申请日：2016-06-22

Applicant: APPLE INC.

Inventor： Hsin-Yuo Liu ,  Peter M. Agboh ,  Mohit Narang ,  Indranil S. Sen ,  Nicholas M. McDonnell ,  Chia-Yiaw Chong

IPC: H04L5/14 ,  H04W4/00 ,  H03F3/24 ,  H03H9/17 ,  H03H9/02 ,  H03H9/64 ,  H04B7/0413 ,  H04W84/12

CPC classification number: H04L5/1461 ,  H03F3/245 ,  H03F3/68 ,  H03F2200/111 ,  H03F2200/451 ,  H03H9/02007 ,  H03H9/171 ,  H03H9/64 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0066 ,  H04W4/80 ,  H04W84/12 ,  H04W88/06

Abstract: Devices and systems useful in concurrently receiving and transmitting Wi-Fi signals and Bluetooth signals in the same frequency band are provided. By way of example, an electronic device includes a transceiver configured to transmit data and to receive data over channels of a first wireless network and a second wireless network concurrently. The transceiver includes a plurality of filters configured to allow the transceiver to transmit the data and to receive the data in the same frequency band by reducing interference between signals of the first wireless network and the second wireless network.

公开(公告)号：US20160374028A1

公开(公告)日：2016-12-22

申请号：US14746133

申请日：2015-06-22

Applicant: APPLE INC.

Inventor： Mohit Narang ,  Peter M. Agboh ,  Qiyang Wu ,  Ruben Caballero ,  Vusthla Sunil Reddy ,  Xi Yang

IPC: H04W52/20 ,  H04L12/26 ,  H04W4/00

CPC classification number: H04W52/20 ,  H04L43/0847 ,  H04L43/16 ,  H04W4/80 ,  H04W52/245 ,  H04W52/246 ,  H04W52/367

Abstract: A host device is configured to increase the power output by an internal amplifier of its wireless chipset in response to requests from a remote device. Once the internal amplifier has reached its maximum power, further requests for power increases from the remove device do not similarly lead to automatic power increases being delivered by a external amplifier of the host device. Rather, the host device determines the strength of the link between it and the remote device. If the signal strength is too low, it is an indication that the signal power output by the remote device may not be sufficient to maintain the link and that any further increases in signal power by the host device will have little or no effect on the link. However, if the signal strength from the remote device is sufficient, the host device determines an error rate between it and the remote device. If the error rate is sufficiently low to maintain the link, then the host device will not further increase its signal output power. However, if the error rate is too high, the host device will turn on and/or increase power from its external amplifier to boost the power of its output signal and, thus, improve the error rate between it and the remote device.

Abstract translation: 主机设备被配置为响应于来自远程设备的请求而增加其无线芯片组的内部放大器的功率输出。 一旦内部放大器达到其最大功率，则从去除装置中进一步要求功率增加不会类似地导致由主机设备的外部放大器传送的自动功率增加。 相反，主机设备确定其与远程设备之间的链路的强度。 如果信号强度太低，则指示远程设备输出的信号功率可能不足以维持链路，并且由主机设备进一步增加的信号功率对链路的影响很小或没有影响 。 然而，如果来自远程设备的信号强度足够，则主机设备确定其与远程设备之间的错误率。 如果错误率足够低以维持链路，则主机设备将不会进一步增加其信号输出功率。 然而，如果错误率太高，主机将会打开和/或从其外部放大器增加功率，以提高其输出信号的功率，从而提高其与远程设备之间的错误率。