中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

46 records (took 0.018 seconds)

    Systems and methods for reducing inter-carrier interference in device-to-device (D2D) communication
    21.
    发明授权
    Systems and methods for reducing inter-carrier interference in device-to-device (D2D) communication 有权

    公开(公告)号：US10666471B2

    公开(公告)日：2020-05-26

    申请号：US16132697

    申请日：2018-09-17

    Applicant: Apple Inc.

    Inventor： Lydi Smaini ,  Tarik Tabet ,  Ronald W. Dimpflmaier

    IPC: H04L25/03 ,  H04W72/04 ,  H04L5/00

    Abstract: Systems, methods, and devices are provided for reducing and/or eliminating impact of inter-carrier interference on wireless signals transmitted and received via off-grid radio communications (e.g., Device-to-Device (D2D) communication). The method may include using circuitry to generate a plurality of subcarriers associated with a data signal, such that the plurality of subcarriers transmit the data signal along a narrowband transmission channel. The method may involve using the circuitry to remove a null subcarrier of the plurality of subcarriers that is located at a direct current (DC) frequency. The method may also involve generating an asymmetrical frequency spectrum for a portion of the plurality of subcarriers centered about the removed null subcarrier. The method may also include transmitting the plurality of subcarriers to another electronic device via D2D communication.

    RF RADIOHEAD WITH OPTICAL INTERCONNECTION TO BASEBAND PROCESSOR
    22.
    发明申请
    RF RADIOHEAD WITH OPTICAL INTERCONNECTION TO BASEBAND PROCESSOR 审中-公开

    公开(公告)号：US20190098699A1

    公开(公告)日：2019-03-28

    申请号：US15716730

    申请日：2017-09-27

    Applicant: Apple Inc.

    Inventor： Rastislav Vazny ,  Matthias Sauer ,  Ronald W. Dimpflmaier

    IPC: H04W88/08 ,  H04W40/06

    Abstract: A portable electronic device includes a baseband integrated circuit configured to generate communication data and control signals. The portable electronic device also includes an optical path configured to be coupled to the baseband integrated circuit to transmit the data signals from the baseband integrated circuit. The portable electronic device additionally includes a radiohead configured to be coupled to the optical path to receive the data signals transmitted along the optical path from the baseband integrated circuit.

    Reconfigurable Feed-Forward for Electrical Balance Duplexers (EBD)
    25.
    发明申请
    Reconfigurable Feed-Forward for Electrical Balance Duplexers (EBD) 审中-公开

    公开(公告)号：US20200083867A1

    公开(公告)日：2020-03-12

    申请号：US16123826

    申请日：2018-09-06

    Applicant: Apple Inc.

    Inventor： Joonhoi Hur ,  Rastislav Vazny ,  Ronald W. Dimpflmaier

    IPC: H03H9/72 ,  H03H7/46 ,  H04L5/14 ,  H04B1/52 ,  H03H9/145 ,  H03H9/64 ,  H04B1/12

    Abstract: Systems, methods, and devices for reducing insertion loss and/or swapping transmitter (TX) and receiver (RX) frequencies in an electrical balance duplexer (EBD) used in a transceiver device for frequency division duplexing (FDD) applications are provided. Feed-forward receiver path from the antenna to a low noise amplifier (LNA) and a feed-forward path from the antenna to a power amplifier (PA) of the EBD may be used for reducing insertion loss of the RX and TX signals. In some embodiments, switches may be used to selectively alter operational modes for varied levels of isolation and/or swapping of TX and RX frequencies.

    Low-power receiving using a jamming detection mode
    28.
    发明授权
    Low-power receiving using a jamming detection mode 有权

    公开(公告)号：US10461789B2

    公开(公告)日：2019-10-29

    申请号：US16010208

    申请日：2018-06-15

    Applicant: Apple Inc.

    Inventor： Ronald W. Dimpflmaier ,  Matthias Sauer ,  Bernd W. Adler

    IPC: H04B1/16 ,  H04B1/10 ,  H04B1/18 ,  H04K3/00

    Abstract: A low-power scouting receiver is presented that provides an ability perform low-power scouting functions at a relatively low power. The low-power scouting functions determine context information for the receiver and enable fine-tuning of other receiver operations based on the context information. The low-power scouting functions include receiver control and switching, jammer detection, self-interference detection, or other context-dependent radio parameters.

    CONVERGED TRANSMITTER ARCHITECTURE WITH REDUCED POWER CONSUMPTION
    29.
    发明申请
    CONVERGED TRANSMITTER ARCHITECTURE WITH REDUCED POWER CONSUMPTION 审中-公开

    公开(公告)号：US20190097671A1

    公开(公告)日：2019-03-28

    申请号：US15715739

    申请日：2017-09-26

    Applicant: Apple Inc.

    Inventor： Ronald W. Dimpflmaier ,  Rastislav Vazny ,  Lydi R. Smaini

    IPC: H04B1/44 ,  H04B1/04 ,  H04W52/52 ,  H01L23/66 ,  H01Q7/00 ,  H03F3/24 ,  H04B1/3827

    Abstract: The present disclosure relates to radiofrequency (RF) communications systems that may operate efficiently over a broad range of signal output levels. Electronic devices may employ amplification circuitry in the communication RF systems to provide output signal power. For example, amplification provided by external power amplifiers disposed in front-end modules may be more efficient at a higher range of output signal power, but may be inefficient at a lower range of output signal power. The disclosure relates to architectures for RF communication systems having transceivers and front-end modules that may provide power-efficient over broad ranges. Front-end modules may, for example, be managed to disable and/or enable external power amplifiers based of the output signal power. Transceivers may, for example, include internal power amplifier which may provide amplification for low output signals, and may operate as a driver to the external power amplifier of the front-end module for high output signals. Methods for managing the circuitry are also discussed.

Patent Agency Ranking