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公开(公告)号：US20240088556A1
公开(公告)日：2024-03-14
申请号：US18463234
申请日：2023-09-07
Applicant: Apple Inc.
Inventor： Bertram R Gunzelmann , Zdravko Boos , Ramin Khayatzadeh , Nedim Muharemovic
CPC classification number: H01Q3/2676 , H01Q15/0033
Abstract: An electronic device may include a fully-connected photonic phased antenna array having a set of antennas, each with an antenna resonating element coupled to a set of photodiodes. Optical modulators may receive different wireless data streams and may generate modulated signals. Optical paths may provide the modulated signals generated by each modulator to a different photodiode in each antenna. Sets of optical phase shifters may apply different sets of phase shifts for each of the modulated signals. Optical paths may provide the phase shifted signals to the photodiodes in the antennas. The photodiodes may produce currents that are superposed on the antenna resonating elements. Each antenna may be used to concurrently convey all of the wireless data streams. The phase shifts may configure the array to transmit signals that include the wireless data streams within different respective signal beams.
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公开(公告)号：US10938542B1
公开(公告)日：2021-03-02
申请号：US16582769
申请日：2019-09-25
Applicant: Apple Inc.
Inventor： Nedim Muharemovic , Joonhoi Hur , Rastislav Vazny
IPC: H04L25/03 , H04B1/525 , H04B1/04 , H04B1/16 , H04B1/58 , H03H7/40 , H04L5/14 , H03H7/42 , H03H11/28 , H03H11/34
Abstract: An electrical balance duplexer (EBD) may be used to isolate a transmitter and receiver that share a common antenna. By using impedance gradients to provide impedances that cause balance-unbalance transformers (balun) of the EBD to cut-off access to the common antenna rather than duplicate the antenna impedance, the EBD is balanced. Such cut-offs may have a lower insertion loss than an EBD that merely duplicates the antenna impedance to separate the differential signals of the receiver/transmitter from the common mode signal.
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公开(公告)号：US20230353093A1
公开(公告)日：2023-11-02
申请号：US18186125
申请日：2023-03-17
Applicant: Apple Inc.
Inventor： Zdravko Boos , Bertram R. Gunzelmann , Nedim Muharemovic , Ramin Khayatzadeh , Tomas Sarmiento
IPC: H03D7/16 , H04B10/61 , H04B10/63 , H04B10/2575
CPC classification number: H03D7/165 , H04B10/6164 , H04B10/63 , H04B10/25759
Abstract: An electronic device may include clocking circuitry with primary and secondary lasers that generate first and second optical local oscillator (LO) signals. A phase-locked loop (PLL) may tune the secondary laser based to phase lock the first and second optical LO signals. A self-injection locking loop path may couple an output of the secondary laser to its input. The self-injection locking loop path may include a first mixer and a second mixer. The first mixer may generate a beat signal using the first and second optical LO signals. The second mixer may generate a self-injection locking signal based on the first optical LO signal and the beat signal. A delay line or optical resonator may iteratively self-inject the self-injection locking signal onto the secondary laser. This may serve to minimize phase noise and jitter of the optical LO signals.
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公开(公告)号：US11791974B2
公开(公告)日：2023-10-17
申请号：US17899556
申请日：2022-08-30
Applicant: Apple Inc.
Inventor： Nedim Muharemovic , Joonhoi Hur , Rastislav Vazny
CPC classification number: H04L5/1461 , H03H7/42 , H03H11/28 , H03H11/344 , H04B1/04 , H04B1/16
Abstract: An electrical balance duplexer (EBD) may be used to isolate a transmitter and receiver that share a common antenna. By using impedance gradients to provide impedances that cause balance-unbalance transformers (balun) of the EBD to cut-off access to the common antenna rather than duplicate the antenna impedance, the EBD is balanced. Such cut-offs may have a lower insertion loss than an EBD that merely duplicates the antenna impedance to separate the differential signals of the receiver/transmitter from the common mode signal.
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公开(公告)号：US20210184825A1
公开(公告)日：2021-06-17
申请号：US17188574
申请日：2021-03-01
Applicant: Apple Inc.
Inventor： Nedim Muharemovic , Joonhoi Hur , Rastislav Vazny
Abstract: An electrical balance duplexer (EBD) may be used to isolate a transmitter and receiver that share a common antenna. By using impedance gradients to provide impedances that cause balance-unbalance transformers (balun) of the EBD to cut-off access to the common antenna rather than duplicate the antenna impedance, the EBD is balanced. Such cut-offs may have a lower insertion loss than an EBD that merely duplicates the antenna impedance to separate the differential signals of the receiver/transmitter from the common mode signal.
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Patent Agency Ranking
公开(公告)号：US11632224B2
公开(公告)日：2023-04-18
申请号：US17832171
申请日：2022-06-03
Applicant: Apple Inc.
Inventor： Nedim Muharemovic , Joonhoi Hur , Rastislav Vazny
Abstract: Systems and method are described for improving electrical isolation between a transmission signal and receiver circuitry of a transceiver communicating over one or more wireless networks via one or more shared antennas. The transceiver may include isolation circuitry to facilitate isolation of the transmission signal from the receiver circuitry. However, a leakage current of the transmission signal and noise signals may appear at the receiver circuitry. Presence of the leakage current or the noise signals in the receiver circuitry may cause interference with the reception signal. As such, the isolation circuitry may benefit from additional isolation between the transmission signal and the receiver circuitry to reduce an effect of the leakage current and the noise signals on the reception signal.
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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
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.
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公开(公告)号：US20220303107A1
公开(公告)日：2022-09-22
申请号：US17832171
申请日：2022-06-03
Applicant: Apple Inc.
Inventor： Nedim Muharemovic , Joonhoi Hur , Rastislav Vazny
Abstract: Systems and method are described for improving electrical isolation between a transmission signal and receiver circuitry of a transceiver communicating over one or more wireless networks via one or more shared antennas. The transceiver may include isolation circuitry to facilitate isolation of the transmission signal from the receiver circuitry. However, a leakage current of the transmission signal and noise signals may appear at the receiver circuitry. Presence of the leakage current or the noise signals in the receiver circuitry may cause interference with the reception signal. As such, the isolation circuitry may benefit from additional isolation between the transmission signal and the receiver circuitry to reduce an effect of the leakage current and the noise signals on the reception signal.
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公开(公告)号：US11424900B2
公开(公告)日：2022-08-23
申请号：US17065397
申请日：2020-10-07
Applicant: Apple Inc.
Inventor： Nedim Muharemovic , Joonhoi Hur , Rastislav Vazny
Abstract: Systems and method are described for improving electrical isolation between a transmission signal and receiver circuitry of a transceiver communicating over one or more wireless networks via one or more shared antennas. The transceiver may include isolation circuitry to facilitate isolation of the transmission signal from the receiver circuitry. However, a leakage current of the transmission signal and noise signals may appear at the receiver circuitry. Presence of the leakage current or the noise signals in the receiver circuitry may cause interference with the reception signal. As such, the isolation circuitry may benefit from additional isolation between the transmission signal and the receiver circuitry to reduce an effect of the leakage current and the noise signals on the reception signal.
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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
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.
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