Apple Inc.

Other

Peter M Agboh

Vusthla Sunil Reddy

Mohit Narang

Hsin-Yuo Liu

Ruben Caballero

Indranil S Sen

Lei Li

Xiaojun Chen

Chia Yiaw Chong

Xinping Zeng

Xi Yang

Qiyang Wu

Nicholas M McDonnell

Vincent Chauvin

Manjit S Walia

Qiong Wu

Derek Keith Shaeffer

Joachim S Hammerschmidt

Camille Chen

Axel Dominique Berny

Alejandro J Marquez

Shang-Te Yang

Siegfried Lehmann

Anatoli Gostev

Vijendrakumar K Ashiwal

Sireesha Ramisetti

Tad J Dreier

Xiaoming Yu

Kai Bai

Louay Alsakka

Sajeev Alakkatt Paleri

Chia-Chi Chen

Daya Krishna

Pablo Luis Vila Rodriguez

Wen Zhao

Navid Damji

Paul V Flynn

Ming Hu

Diego C Hernandez

Mark D Neumann

Sathish Shanbhag Kota

Jianxuan Tu

Christiaan A Hartman

Pierre B Vandwalle

Digvijay Arjunrao Jadhav

Jordi Agud Ruiz

Ye Chen

Shrenik Milapchand

Tatsuya Nagae

Ali Pourghorban Saghati

Vikas O Jain

Kenyu Abe

Seunghoi Kim

Pradeep K Marri

Sultan R Helmi

Tursunjan Yasin

Jianjian Li

Kaushal K Mangtani

Abhishek Mehta

Chia-Yiaw Chong

Hsin-You Liu

Adam T Dohner

Vusthia Sunil Reddy

XinPing Zeng

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.

Active near-field communication device facilitation of low power card detection

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.

Listen-before-talk systems, devices, and methods based on intra-device operations

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.

Multi-radio filtering front-end circuitry for transceiver systems

Methods performed by a first sink device, a source device, or a second sink device. The first sink device is connected to a source device via a first communication link and a second sink device via a second communication link, wherein the second sink device is configured to eavesdrop on communications between the first sink device and the source device on the first communication link. The methods include determining an occurrence of a trigger event and modifying an operation of at least one of the first sink device, the second sink device or the source device based at least on the trigger event occurring.

Coordinated transmission and control for audio output devices

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.

Dynamic adjustment of transmission parameters

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.

Real-time relay of wireless communications

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.

Terahertz spectroscopy and imaging in dynamic environments with performance enhancements using ambient sensors

Embodiments are disclosed for terahertz spectroscopy and imaging in dynamic environments. In an embodiment, a transmitter of an electronic device emits a continuous electromagnetic (EM) wave in the terahertz (THz) frequency band into a dynamic environment that includes a transmission medium that changes over time. A receiver of the electronic device, receives an EM wave reflected off an object in the environment and determines a spectral response of the reflected EM wave. The spectral response includes absorption spectra at a frequency in the THz frequency band that is indicative of a known target transmission medium. The absorption spectra of the target transmission medium and a path length of the reflected EM wave signal are used to obtain the concentration level of the target transmission medium from a reference library of known concentration levels.

Terahertz spectroscopy and imaging in dynamic environments

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.

Techniques for selecting conducted RF links for mitigating multi-radio coexistence

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.

Coexistence of wireless technologies on an antenna

Growing community of inventors

Burlingame, CA, United States of America

Peter M Agboh