-
公开(公告)号：US11949462B2
公开(公告)日：2024-04-02
申请号：US17892961
申请日：2022-08-22
Applicant: Apple Inc.
Inventor： Bertram R Gunzelmann , Zdravko Boos
IPC: H04B10/00 , G02B6/293 , H04B10/2575 , H04B10/61 , H04B10/63
CPC classification number: H04B10/6164 , G02B6/2938 , H04B10/25759 , H04B10/63
Abstract: A communication system may an optical signal generator and a signal path. The generator may generate one or more optical local oscillator (LO) signals and an optical frequency comb. Optical paths and an optical demultiplexer may distribute the optical LO signal(s) and the frequency comb to photodiodes in one or more access points. The photodiodes may be coupled to antenna radiating elements. The optical paths may illuminate each photodiode using a signal pair that includes one of the optical LO signals and one of the carriers from the frequency comb. The photodiodes may convey wireless signals using the antenna radiating elements at frequencies given by the differences in frequency between the signals in the signal pairs. The radiating elements may concurrently convey the wireless signals with different external devices at different frequencies, with different devices at the same frequency, and/or with the same device at the same frequency.
-
公开(公告)号：US20240097743A1
公开(公告)日：2024-03-21
申请号：US18464144
申请日：2023-09-08
Applicant: Apple Inc.
Inventor： Ankit Bhamri , Danila Zaev , Bertram R Gunzelmann , Sharad Sambhwani
CPC classification number: H04B7/04013 , H04L5/0051 , H04W64/003
Abstract: A system may include an access point (AP), user equipment (UE), and a reconfigurable intelligent surface (RIS). The RIS may include an array of elements coupled to adjustable devices controlled to cause the array to reflect signals in different directions. The RIS may be controlled in a first mode in which the AP controls the adjustable devices, a second mode in which the UE controls the adjustable devices, and a third mode in which the RIS controls the adjustable devices. The RIS, AP, or UE may determine which mode to place the RIS in based on a downlink signal transmitted by the AP, an uplink signal transmitted by the UE, measurements of the signals performed on the RIS, a first distance or round trip time between the AP and the RIS, and/or a second distance or round trip time between the UE and the RIS.
-
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.
-
公开(公告)号：US20230396341A1
公开(公告)日：2023-12-07
申请号：US18448586
申请日：2023-08-11
Applicant: Apple Inc.
Inventor： Bertram R Gunzelmann
CPC classification number: H04B10/6162 , H04B2210/006 , H01Q9/065
Abstract: A first device may generate optical signals of different polarizations. Photodiodes may use the optical signals to transmit wireless signals at different polarizations and at a frequency greater than 100 GHz using the optical signals. A second device may receive the wireless signals and may convert the wireless signals into optical signals. A Stokes vector receiver on the second device may generate Stokes vectors based on the optical signals. Control circuitry on the second device may use the Stokes vectors generated for a series of training data in the wireless signals to generate a rotation matrix that characterizes polarization rotation between the first and second devices. The control circuitry may multiply wireless data in subsequently received wireless signals by the rotation matrix to mitigate the polarization rotation and other transmission impairments while using minimal resources.
-
公开(公告)号：US20230370122A1
公开(公告)日：2023-11-16
申请号：US18186895
申请日：2023-03-20
Applicant: Apple Inc.
Inventor： Bertram R Gunzelmann , Stefan Meyer , Jan Ellenbeck
CPC classification number: H04B7/04013 , H04B7/0696 , H01Q3/46
Abstract: A user equipment (UE) device may communicate with an access point (AP) at greater than 100 GHz via a reconfigurable intelligent surface (RIS). The AP may perform a control RAT discovery with the RIS and then a data transfer RAT discovery, during which the AP uses the control RAT to control the RIS to sweep over different RIS beams. The AP may transmit radar waveforms while concurrently sweeping over different AP beams. The AP may gather performance metric values from the radar waveforms after reflection off the RIS during the sweep. The AP may identify an optimal RIS beam that produced the best performance metric values. The AP may use the optimal RIS beam to identify the orientation of the RIS, which the AP may use to select AP and/or RIS beams for conveying wireless data between the AP and the UE via the RIS.
-
Patent Agency Ranking
公开(公告)号：US20230092606A1
公开(公告)日：2023-03-23
申请号：US17892961
申请日：2022-08-22
Applicant: Apple Inc.
Inventor： Bertram R Gunzelmann , Zdravko Boos
IPC: H04B10/61 , G02B6/293 , H04B10/63 , H04B10/2575
Abstract: A communication system may an optical signal generator and a signal path. The generator may generate one or more optical local oscillator (LO) signals and an optical frequency comb. Optical paths and an optical demultiplexer may distribute the optical LO signal(s) and the frequency comb to photodiodes in one or more access points. The photodiodes may be coupled to antenna radiating elements. The optical paths may illuminate each photodiode using a signal pair that includes one of the optical LO signals and one of the carriers from the frequency comb. The photodiodes may convey wireless signals using the antenna radiating elements at frequencies given by the differences in frequency between the signals in the signal pairs. The radiating elements may concurrently convey the wireless signals with different external devices at different frequencies, with different devices at the same frequency, and/or with the same device at the same frequency.
-
公开(公告)号：US12237585B2
公开(公告)日：2025-02-25
申请号：US17827120
申请日：2022-05-27
Applicant: Apple Inc.
Inventor： Bertram R Gunzelmann
Abstract: A wireless system may include a central processor and an access point. The central processor may generate an optical signal on an optical fiber. The optical signal may include an optical local oscillator (LO) signal and one or more carriers. The central processor may modulate different combinations of transverse optical modes, orbital angular momentum, polarization, and/or carrier frequency of the optical signal to concurrently convey respective wireless data streams. The orthogonality of the transverse optical modes, orbital angular momentum, polarization, and carrier frequency may allow many wireless data streams to be modulated onto the optical signal and concurrently transmitted and propagated on the optical fiber independent of each other for transmission to one or more external devices.
-
公开(公告)号：US20240187095A1
公开(公告)日：2024-06-06
申请号：US18440560
申请日：2024-02-13
Applicant: Apple Inc.
Inventor： Zdravko Boos , Bertram R Gunzelmann
IPC: H04B10/112 , H04B10/50 , H04B10/54
CPC classification number: H04B10/112 , H04B10/501 , H04B10/541
Abstract: An electronic device may include an antenna that conveys wireless signals at frequencies greater than 100 GHz. The antenna may include a radiating element coupled to a uni-travelling-carrier photodiode (UTC PD). An optical path may illuminate the UTC PD using a first optical local oscillator (LO) signal and a second optical LO signal. An optical phase shift may be applied to the first optical LO signal. A Mach-Zehnder modulator (MZM) may be interposed on the optical path. During signal transmission, the MZM may modulate wireless data onto the second optical LO signal while control circuitry applies a first bias voltage to the UTC PD. During signal reception, the control circuitry may apply a second bias voltage to the UTC PD that configures the UTC PD to convert received wireless signals into intermediate frequency signals and/or optical signals.
-
公开(公告)号：US11956341B2
公开(公告)日：2024-04-09
申请号：US17830087
申请日：2022-06-01
Applicant: Apple Inc.
Inventor： Zdravko Boos , Alfredo Bismuto , Bertram R Gunzelmann
CPC classification number: H04L7/0075 , H04B10/11
Abstract: An electronic device may include wireless circuitry clocked using an electro-optical phase-locked loop (OPLL) having primary and secondary lasers. A frequency-locked loop (FLL) path and a phase-locked loop (PLL) path may couple an output of the secondary laser to its input. A photodiode may generate a photodiode signal based on the laser output. A digital-to-time converter (DTC) may generate a reference signal. The FLL path may coarsely tune the secondary laser based on the photodiode signal until the secondary laser is frequency locked. Then, the PLL path may finely tune the secondary laser based on the reference signal and the photodiode signal until the phase of the secondary laser is locked to the primary laser. The photodiode signal may be subsampled on the PLL path. This may allow the OPLL to generate optical local oscillator signals with minimal jitter and phase noise.
-
公开(公告)号：US20240089005A1
公开(公告)日：2024-03-14
申请号：US17944726
申请日：2022-09-14
Applicant: Apple Inc.
Inventor： Bertram R Gunzelmann , Nedim Muharemovic , Zdravko Boos , Ramin Khayatzadeh
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.
-
-
-
-
-
-
-
-
-
Search Results
25
records
(took 0.016 seconds)
