公开(公告)号：US20210041376A1

公开(公告)日：2021-02-11

申请号：US16536266

申请日：2019-08-08

Applicant: Apple Inc.

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

IPC: G01N22/00

Abstract: Embodiments are disclosed for terahertz spectroscopy and imaging in dynamic environments. In an embodiment, a method comprises using a sensor of an electronic device to determine an orientation of the electronic device. A transmitter of the electronic device emits an electromagnetic (EM) wave in a terahertz (THz) frequency band into a dynamic environment according to a power duty cycle that is determined at least in part by the orientation. A receiver of the electronic device receives a reflected EM wave from the environment. A spectral response of the reflected EM wave is determined that includes absorption spectra that is indicative of the transmission medium in the environment. The absorption spectra are compared with known absorption spectra of target transmission mediums. Based on the comparing, a particular target transmission medium is identified as being the transmission medium in the environment, and a concentration level of the identified target transmission medium in the environment is determined.

公开(公告)号：US20200336220A1

公开(公告)日：2020-10-22

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

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.

公开(公告)号：US10602397B2

公开(公告)日：2020-03-24

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: H04H20/71 ,  H04W28/04 ,  H04L29/14 ,  H04R1/10 ,  H04L29/06 ,  H04L1/16 ,  H04L1/18 ,  H04W76/14 ,  H04W84/18 ,  H04W88/04 ,  H04R5/033 ,  H04W84/20 ,  H04L1/00 ,  H04W4/80 ,  H04W56/00 ,  H04W72/04

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：US10567041B2

公开(公告)日：2020-02-18

申请号：US15788688

申请日：2017-10-19

Applicant: Apple Inc.

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

IPC: H04B5/00 ,  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.

公开(公告)号：US20200004312A1

公开(公告)日：2020-01-02

申请号：US16569383

申请日：2019-09-12

Applicant: Apple Inc.

Inventor： Diego C. Hernandez ,  Harneet Singh Oberoi ,  Indranil S. Sen ,  Kevin C. Camilleri ,  Ragburam C. Kamath ,  Vusthla Sunil Reddy

IPC: G06F1/3212 ,  G06F1/3234

Abstract: A technique for dynamically adjusting power use of an input/output (I/O) interface of an electronic device is provided. The electronic device includes an input/output (I/O) interface that facilitates electronic communications with a receiving electronic device, at a particular transmission rate that is dynamically changeable by the electronic device. Transmission power and transmission rate adjustment circuitry determines whether a step-down in a transmission power used for signal transmission at the particular transmission rate is desirable. When desirable, the transmission power is dynamically adjusted down one step, such that less power is used by the I/O interface during the electronic communications.

公开(公告)号：US10390313B2

公开(公告)日：2019-08-20

申请号：US15014506

申请日：2016-02-03

Applicant: Apple Inc.

Inventor： Mohit Narang ,  Peter Agboh ,  Vusthla Sunil Reddy ,  Chia Yiaw Chong ,  Indranil S. Sen ,  Ruben Caballero ,  Manjit S. Walia ,  Xi Yang

IPC: H04W52/28 ,  H04W72/04 ,  H04W4/02 ,  H04W52/02 ,  H04W4/80

Abstract: In order to improve communication with another electronic device, during an advertising mode an electronic device (such as a smartphone) may transmit a packet with advertising information using a default transmit power level. Then, based on feedback about a performance metric associated with the communication from the other electronic device, the electronic device may selectively increase the transmit power level for a subsequent packet. Because this selective increase in the transmit power level may increase the overall power consumption, the change in the transmit power level also may depend on one or more factors, such as a battery power level of the electronic device. However, the selective increase in the transmit power level may, in some instances, decrease the overall power consumption by reducing or eliminating retries.

公开(公告)号：US10263753B2

公开(公告)日：2019-04-16

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: H04L5/00 ,  H04W72/08 ,  H04W84/12 ,  H04W72/04

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.

公开(公告)号：US20160262028A1

公开(公告)日：2016-09-08

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: H04W24/02 ,  G06F1/16 ,  H04W72/02

CPC classification number: G06F1/163 ,  G06F1/1656 ,  G06F1/1698

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.

Abstract translation: 提供了一种用于提高射频系统性能的系统和方法。 一个实施例描述了可以基于检测到的电子设备的壳体和/或附件来修改的射频系统。 这些修改可以抵消外壳和/或附件对射频传输的影响。

公开(公告)号：US20160094934A1

公开(公告)日：2016-03-31

申请号：US14502357

申请日：2014-09-30

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: H04W4/00 ,  H04W8/00 ,  H04W76/02

CPC classification number: H04W76/14 ,  H04B17/318 ,  H04W4/80 ,  H04W8/005 ,  H04W12/06 ,  H04W84/042 ,  H04W84/12

Abstract: In order to establish a connection between electronic devices, after receiving an advertising packet from another electronic device, an electronic device compares a performance metric associated with the communication with the other electronic device with a threshold value. Based on the comparison, the electronic device provides pairing-intent information specifying a pairing intent for the electronic device and the other electronic device for presentation by the other electronic device. Moreover, after receiving additional pairing-intent information specifying the pairing intent from the other electronic device, the electronic device establishes the connection with the other electronic device when the additional pairing-intent information matches the pairing-intent information. For example, the pairing intent may include a gesture and/or a sequence of one or more characters, and the additional pairing-intent information may include: the sequence of one or more characters; accelerometer data corresponding to the gesture; and/or user-interface data corresponding to the gesture.

Abstract translation: 为了建立电子设备之间的连接，在从另一电子设备接收到广告包之后，电子设备将具有与其他电子设备的通信相关联的性能度量与阈值进行比较。 基于比较，电子设备提供了配对意图信息，其指定用于电子设备和另一电子设备的配对意图以供另一电子设备呈现。 此外，当从另一电子设备接收到指定配对意图的附加配对意图信息时，当附加配对意图信息与配对意图信息匹配时，电子设备建立与另一电子设备的连接。 例如，配对意图可以包括手势和/或一个或多个字符的序列，并且附加配对意图信息可以包括：一个或多个字符的序列; 对应于手势的加速度计数据; 和/或对应于该手势的用户界面数据。

公开(公告)号：US20160066267A1

公开(公告)日：2016-03-03

申请号：US14474718

申请日：2014-09-02

Applicant: Apple Inc.

Inventor： Mohit Narang ,  Peter M. Agboh ,  Vusthla Sunil Reddy ,  Chia Yiaw Chong ,  Indranil S. Sen ,  Ruben Caballero ,  Manjit S. Walia ,  Xi Yang

IPC: H04W52/02 ,  H04W4/00

CPC classification number: H04W52/0209 ,  H04W4/80 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: In order to improve communication with another electronic device, during an advertising mode an electronic device (such as a smartphone) may transmit a packet with advertising information using a default transmit power level. Then, based on feedback about a performance metric associated with the communication from the other electronic device, the electronic device may selectively increase the transmit power level for a subsequent packet. Because this selective increase in the transmit power level may increase the overall power consumption, the change in the transmit power level may depend on a battery power level of the electronic device. However, the selective increase in the transmit power level may decrease the overall power consumption by reducing or eliminating retries.

Abstract translation: 为了改善与另一电子设备的通信，在广告模式期间，电子设备（例如智能电话）可以使用默认发送功率电平来发送具有广告信息的分组。 然后，基于与来自其他电子设备的通信相关联的性能度量的反馈，电子设备可以选择性地增加后续分组的发射功率电平。 因为发射功率电平的这种选择性增加可能会增加总功耗，所以发射功率电平的变化可能取决于电子设备的电池功率电平。 然而，发射功率电平的选择性增加可以通过减少或消除重试来降低总功耗。