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    Electronic Device with Digital Frequency Discriminator for Wireless Communication
    1.
    发明公开
    Electronic Device with Digital Frequency Discriminator for Wireless Communication 审中-公开

    公开(公告)号：US20240364318A1

    公开(公告)日：2024-10-31

    申请号：US18308221

    申请日：2023-04-27

    Applicant: Apple Inc.

    Inventor： Zdravko Boos ,  Andreas Menkhoff ,  Bertram R Gunzelmann ,  Nedim Muharemovic

    IPC: H03K5/01 ,  H03D7/00

    CPC classification number: H03K5/01 ,  H03D7/00 ,  G04F10/005 ,  H03K2005/00078 ,  H03K2005/00286

    Abstract: An electronic device may include wireless circuitry that conveys wireless signals and that is clocked using clocking circuitry. The clocking circuitry may include a signal source that generates a clock signal and a loop path coupled between the input and the output of the signal source. A digital frequency discriminator (DFD) may be disposed on the loop path. The DFD may include a digital delay and digital phase shifter coupled between an input converter and a digital mixer. The DFD may receive the clock signal and may generate a control signal indicative of phase noise of the clock signal. The DFD may feed the control signal back into the input of the signal source to mitigate the phase noise. The DFD may minimize phase noise of the signal source while minimizing space and power consumption on the device relative to analog frequency discriminators.

    Receiver with photonic antenna array
    2.
    发明授权
    Receiver with photonic antenna array 有权

    公开(公告)号：US12068786B2

    公开(公告)日：2024-08-20

    申请号：US17944726

    申请日：2022-09-14

    Applicant: Apple Inc.

    Inventor： Bertram R Gunzelmann ,  Nedim Muharemovic ,  Zdravko Boos ,  Ramin Khayatzadeh

    IPC: H04B10/50 ,  G02F1/21 ,  H01Q3/26

    CPC classification number: H04B10/505 ,  H01Q3/2676 ,  G02F1/212

    Abstract: An electronic device may include a receiver having a light source that provides an optical signal to an optical splitter. An optical combiner may be coupled to the optical splitter over a set of parallel optical paths. A phased antenna array may have a set of antennas disposed on the optical paths. Each antenna may include an optical modulator disposed on a respective one of the optical paths and an antenna resonating element coupled to the modulator. Incident radio-frequency signals may produce electrical signals on the antenna resonating elements. Optical phase shifters may provide optical phase shifts to the optical signal. The modulators may modulate the optical local oscillator signal using the electrical signals. The optical combiner may generate a combined signal by combining modulated optical signals from the optical paths. A demodulator may recover wireless data from the radio-frequency signals using the combined signal.

    Electronic Devices with High Frequency Reflective Antenna Arrays
    3.
    发明公开
    Electronic Devices with High Frequency Reflective Antenna Arrays 审中-公开

    公开(公告)号：US20240154697A1

    公开(公告)日：2024-05-09

    申请号：US18412237

    申请日：2024-01-12

    Applicant: Apple Inc.

    Inventor： Bertram R. Gunzelmann ,  Zdravko Boos

    IPC: H04B10/116 ,  H04W28/02

    CPC classification number: H04B10/116 ,  H04W28/0215

    Abstract: An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

    Electronic devices with high frequency reflective antenna arrays
    4.
    发明授权
    Electronic devices with high frequency reflective antenna arrays 有权

    公开(公告)号：US11923904B2

    公开(公告)日：2024-03-05

    申请号：US17827290

    申请日：2022-05-27

    Applicant: Apple Inc.

    Inventor： Bertram R Gunzelmann ,  Zdravko Boos

    IPC: H04B10/116 ,  H04W28/02

    CPC classification number: H04B10/116 ,  H04W28/0215

    Abstract: An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

    Electronic Devices with Shared Phase Shifting for High Frequency Communication
    8.
    发明申请
    Electronic Devices with Shared Phase Shifting for High Frequency Communication 有权

    公开(公告)号：US20230093054A1

    公开(公告)日：2023-03-23

    申请号：US17892849

    申请日：2022-08-22

    Applicant: Apple Inc.

    Inventor： Bertram R Gunzelmann ,  Nedim Muharemovic ,  Zdravko Boos

    IPC: H01Q3/26 ,  H01Q3/30

    Abstract: An electronic device may include light sources that generate first and second optical signals. An array may include antennas arranged in rows and columns. First paths may be coupled to each row of the array and second paths may be coupled to each column of the array. First phase shifters may be disposed on the first paths and second phase shifters may be disposed on the second paths. The first phase shifters may apply respective phase shifts to the first optical signal to produce shifted signals for each row. The second phase shifters may apply respective phase shifts to the second optical signal to produce shifted signals for each column. Each antenna may convey wireless signals based on the shifted signals provided to its row and column. Sharing phase shifters in this way may allow the array to perform beam steering while minimizing the number of phase shifters.

    Electronic Devices with High Frequency Reflective Antenna Arrays
    9.
    发明申请
    Electronic Devices with High Frequency Reflective Antenna Arrays 有权

    公开(公告)号：US20230058998A1

    公开(公告)日：2023-02-23

    申请号：US17827290

    申请日：2022-05-27

    Applicant: Apple Inc.

    Inventor： Bertram R. Gunzelmann ,  Zdravko Boos

    IPC: H04B10/116 ,  H04W28/02

    Abstract: An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

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