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公开(公告)号：US10164469B1
公开(公告)日：2018-12-25
申请号：US15265061
申请日：2016-09-14
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Steven W. Cabral , Vaneet Pathak
Abstract: Wireless power may be transferred using wireless power elements such as coil antennas for inductive wireless power transfer technology or patch antennas for capacitive wireless power transfer technology. These antennas in source equipment may couple in a near-field region to antennas implemented in target equipment. Wireless power may also be transferred from the source equipment to the target equipment using radiating antennas in their far-field regions. Wireless power transfer may be optimized by performing channel estimation operations. Foreign objects can be detected and located using sensors or by analyzing the quality of wireless channels. Optimum power transfer settings may be used to maximize wireless power transfer to a set of the antennas in the target equipment while minimizing power transfer to the foreign object.
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公开(公告)号：US11747441B2
公开(公告)日：2023-09-05
申请号：US16941810
申请日：2020-07-29
Applicant: Apple Inc.
Inventor： Harsha Shirahatti , Sujeet Milind Patole , Jouya Jadidian , Mikheil Tsiklauri , Shun Liu , Vaneet Pathak , Lei Wang , Kumar Gaurav Chhokra
Abstract: An electronic device may utilize various methods or systems to determine whether the electronic device is indoors or outdoors. The electronic device transmits wireless signals (e.g., radio detection and ranging (RADAR) signals). The electronic device receives reflections of the wireless signals. Using these received reflections of the wireless signals, the electronic device determines whether a power amplitude of the reflections is greater than or equal to a threshold value. In response to a determination that the power amplitude is not greater than or equal to the threshold value, the electronic device operates in an outdoor mode or an indoor mode.
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公开(公告)号：US11448747B2
公开(公告)日：2022-09-20
申请号：US16583493
申请日：2019-09-26
Applicant: Apple Inc.
Inventor： Sujeet Milind Patole , Jouya Jadidian , Mikheil Tsiklauri
IPC: G01S13/62 , G06F3/04847
Abstract: An electronic device that selectively performs a predefined action is described. The predefined action can be any action performed by the electronic device, such as changing the power state of the electronic device or a component, change the state of a display, initiating a process, ending a process, etc. During operation, the electronic device may transmit a wireless signal. Then, the electronic device may receive a wireless-return signal associated with an object, which can indicate a time-of-flight of the wireless signal between the electronic device and the object. Moreover, the electronic device may determine a range between the electronic device and the object based at least in part on the wireless-return signal. When the range between the electronic device and the object is less than a threshold value, the electronic device may determine: whether the range between the electronic device and the object is varying and/or whether to perform the predefined action.
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公开(公告)号：US20210096217A1
公开(公告)日：2021-04-01
申请号：US16583522
申请日：2019-09-26
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Chunshu Li , Sujeet Milind Patole , Utku Seckin
Abstract: During operation, a first radar transmitter in an electronic device may provide, via a switch, a first set of electrical signals (such as pulses) during a first time interval to a transmission path, which may result in transmitting of the first wireless signals by an antenna. Then, a second radar transmitter may provide, via the switch, a second set of electrical signals (such as pulses) during a second time interval to the transmission path, which may result in transmitting of the second wireless signals by the antenna. Moreover, N radar receivers in the electronic device may receive first wireless-return signals corresponding to the first set of wireless signals and second wireless-return signals corresponding to the second set of wireless signals. These wireless-return signals may be combined to create a virtual array MIMO radar having an antenna aperture size of 2N.
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公开(公告)号：US20210065965A1
公开(公告)日：2021-03-04
申请号：US17096788
申请日：2020-11-12
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Darshan R. Kasar , Christopher S. Graham , Andro Radchenko
Abstract: A shield for redirecting magnetic field generated from a plurality of transmitter coils includes a ferromagnetic structure divided into segments by a plurality of boundary regions, each segment comprises a first material having a first magnetic permeability and each boundary region comprises a second material having a second magnetic permeability lower than the first magnetic permeability, where the plurality of boundary regions are configured to resist a propagation of magnetic field from a first area of the ferromagnetic structure to a second area of the ferromagnetic structure, where the first area intercepts the magnetic field generated from at least one active transmitter coil of the plurality of transmitter coils.
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Patent Agency Ranking
公开(公告)号：US10928498B1
公开(公告)日：2021-02-23
申请号：US16134029
申请日：2018-09-18
Applicant: Apple Inc.
Inventor： Chunshu Li , Jouya Jadidian , Mikheil Tsiklauri , Vaneet Pathak
Abstract: An electronic device includes M separate radar transmitters and N separate radar receivers co-located in the electronic device, where the M radar transmitters and the N radar receivers are arranged in a circular architecture providing 360° coverage in a horizontal plane. Moreover, the N radar receivers are synchronized, e.g., using a clock signal. During operation, subsets of the M radar transmitters sequentially transmit radar signals and, when a given subset of the M radar transmitters is transmitting, at least a subset of the N radar receivers performs radar measurements. Furthermore, at least the subset of the N radar receivers can perform the radar measurements using circular beamforming. Based at least in part on the radar measurements, the electronic device determines a location of an object in an environment around the electronic device, where the location includes a range and an angular position.
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公开(公告)号：US10153668B1
公开(公告)日：2018-12-11
申请号：US15265359
申请日：2016-09-14
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Steven W. Cabral , Vaneet Pathak
Abstract: A mobile charging device may be used to move a battery or a power cord to a target device. The target device may be a vehicle or other equipment with a battery. Power from the power cord or battery in the charging device may be used to provide power to the target device to recharge the battery in the target device. The charging device may couple a power cord to the target device, may couple a connector in the charging device to the target device, or may use a wireless power transfer element such as a coil antenna to transfer power wirelessly to the target device. Sensors may be used to facilitate alignment between the charging device and target device. Sensors may also be used to dynamically detect and avoid foreign objects in the path of the charging device.
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公开(公告)号：US20240077583A1
公开(公告)日：2024-03-07
申请号：US18460309
申请日：2023-09-01
Applicant: Apple Inc.
Inventor： Harsha Shirahatti , Sujeet Milind Patole , Jouya Jadidian , Mikheil Tsiklauri , Shun Liu , Vaneet Pathak , Lei Wang , Kumar Gaurav Chhokra
Abstract: An electronic device may utilize various methods or systems to determine whether the electronic device is indoors or outdoors. The electronic device transmits wireless signals (e.g., radio detection and ranging (RADAR) signals). The electronic device receives reflections of the wireless signals. Using these received reflections of the wireless signals, the electronic device determines whether a power amplitude of the reflections is greater than or equal to a threshold value. In response to a determination that the power amplitude is not greater than or equal to the threshold value, the electronic device operates in an outdoor mode or an indoor mode.
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公开(公告)号：US11611374B2
公开(公告)日：2023-03-21
申请号：US17394336
申请日：2021-08-04
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Sujeet Milind Patole
IPC: H04B5/00
Abstract: Embodiments are disclosed for a low-frequency detection and ranging. In an embodiment, an apparatus comprises: an open electrode; an alternating current (AC) voltage source configured to supply an excitation voltage to the open electrode at an excitation frequency; a resonant circuit coupled to the open electrode, the resonant circuit configured to oscillate when an object is within a detection distance of the open electrode; one or more processors configured to: obtain time domain samples of an output voltage of the resonant circuit when the resonant circuit is oscillating; convert the time domain samples into frequency domain samples; for each frequency domain sample, determine an amplitude difference and a phase difference as compared to an amplitude and phase of the excitation voltage; and determine a material class of the object based on the amplitude difference and the phase difference.
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公开(公告)号：US20210099022A1
公开(公告)日：2021-04-01
申请号：US17119900
申请日：2020-12-11
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Martin Schauer , Andro Radchenko , Cheung-Wei Lam , Ketan Shringarpure , Vaneet Pathak
Abstract: A wireless power system uses a wireless power transmitting device to transmit wireless power to wireless power receiving devices. The wireless power transmitting device has wireless power transmitting coils that extend under a wireless charging surface. Non-power-transmitting coils and magnetic sensors may be included in the wireless power transmitting device. During wireless power transfer operations, control circuitry in the wireless power transmitting device adjusts drive signals applied to the coils to reduce ambient magnetic fields. The drive signal adjustments are made based on device type information and other information on the wireless power receiving devices and/or magnetic sensor readings from the magnetic sensors. In-phase or out-of-phase drive signals are applied to minimize ambient fields depending on device type.
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