Abstract: This disclosure provides techniques for impedance matching. A radio frequency (RF) device includes a power detector to determine a transmitter leakage and a post-processing unit to determine a receiver leakage, and determines if isolation is acceptable based on the leakages. The RF device may include a device for measuring antenna impedance. Otherwise, the RF device may select multiple tuner settings (e.g., capacitor values) for test signals to be transmitted and received at a target frequency, determine multiple sets of leakage values, determine multiple reflection coefficients based on the multiple sets of leakage values, and determine an estimated antenna impedance at the target frequency based on the reflection coefficients. The RF device then determines impedance tuner settings based on the measured or estimated antenna impedance. Alternatively, the RF device determines impedance tuner settings using an inverse machine-learning model based on a determined matching impedance.
Type:
Grant
Filed:
July 2, 2021
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Björn Lenhart, Joonhoi Hur, Harald Pretl, Rastislav Vazny
Abstract: A user equipment (UE) comprising a processor configured to perform the operations that determines an uplink (UL) slot is described. In exemplary embodiments, the UE receives, from a base station, a scaling factor through a first Radio Resource Control (RRC) signal. The UE may further determines an offset through a second RRC signal. In addition, the UE may receive from the base station, downlink control information (DCI) that includes an indication of an initial time gap. Furthermore, the UE may calculate a new time gap by at least applying the scaling factor to the initial time gap and determine a slot of uplink transmission based on at least the new time gap and the offset.
Type:
Grant
Filed:
August 23, 2023
Date of Patent:
July 16, 2024
Assignee:
APPLE INC.
Inventors:
Chunhai Yao, Chunxuan Ye, Dawei Zhang, Haijing Hu, Haitong Sun, Hong He, Oghenekome Oteri, Sarma V. Vangala, Sigen Ye, Wei Zeng, Weidong Yang, Yushu Zhang
Abstract: An approach is described of an access node that is configured to exchange intended Uplink (UL)/Downlink (DL) direction information for cross-link interference (CLI) management in a wireless communication system. The access node includes processor circuitry and communication circuitry. The processor circuitry is configured to generate a message including the intended UL/DL DL direction information. The communication circuitry is coupled to the processor circuitry, and configured to transmit the message to a second access node to thereby implement CLI management.
Abstract: In some implementations, a first device can record a display screen of a second device remotely. For example, the first device (e.g., a remote computing device) can receive information identifying other computing devices on a network. The first device can receive a selection of one of the other computing devices (e.g., the second device) and send a message to the second device to initiate a recording of the display screen of the second device. In response to receiving the message, the second device can record video frames of images presented on the display of the second device. The second device can send the video frames to the first device for display and/or storage. While recording the images presented on the display screen, the second device can present indicia on the display screen of the second device indicating that a screen recording is in progress.
Type:
Grant
Filed:
September 28, 2022
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Vikrant Kasarabada, Gennadiy Shekhtman, Elena Leyfman, Gregory R. Chapman, Chendi Zhang
Abstract: Attachment devices that can secure a phone or other electronic device in place in a vehicle or other structure. One example can provide an attachment device that can include a stalk portion to attach to a surface or structure in a vehicle, such as a vent cover, dashboard, monitor, cup holder or other surface or structure. The attachment device can further include an attachment feature to provide for an attachment to the electronic device. Further examples can provide power for a phone or other electronic device.
Type:
Grant
Filed:
August 5, 2021
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Demetrios B. Karanikos, Varun K. Sanghvi
Abstract: A mobile device includes a camera and a light source module embedded in the mobile device. The light source module includes at least a laser-pumped phosphor light source that includes a photoluminescent phosphor and a laser diode to generate laser light within a first wavelength range to pump the photoluminescent phosphor. Exposure of the photoluminescent phosphor to the laser light results in emission of visible light within a second wavelength range according to a laser-pumped emission spectrum associated with the photoluminescent phosphor.
Type:
Grant
Filed:
April 14, 2023
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Angelo M. Alaimo, Richard L. Baer, Garam Young, Florian R. Fournier, Blake M. Coughenour, Bryan Dang
Abstract: In an example method, a computer system accesses first data representing three-dimensional content and a plurality of bounding boxes. Each of the bounding boxes encloses at least a portion of the three-dimensional content. The computer system also access second data representing a viewing frustum for rendering the three-dimensional content. Based on the first and the second data, the computer system identifies a subset of the bounding boxes that are visible according to the viewing frustum. For each of the one or more bounding boxes of the subset, the computer system identifies an image tile from among a plurality of image tiles corresponding to the bounding box, and renders one or more video frames in a frame buffer based on the identified image tile.
Abstract: Disclosed techniques relate to distributing graphics work based on priority. In some embodiments, circuitry implements a plurality of tracking slots for sets of graphics work. A set of graphics processor sub-units may each implement multiple distributed hardware slots. Control circuitry may attempt to assign a first set of graphics work having a first priority to a graphics processor sub-unit that is currently executing graphics work having an equal or higher priority than the first priority, where the first set of graphics work is from a first tracking slot. The control circuitry may, in response to a failure of the attempt, generate a signal to graphics software that indicates the failure, wherein the signal indicates the first tracking slot. Disclosed techniques may reduce or avoid problems relating to higher priority work being scheduled behind lower priority work.
Type:
Grant
Filed:
September 7, 2021
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Benjamin Bowman, Fergus W. MacGarry, Kutty Banerjee, Pratik Chandresh Shah
Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for balancing time resource allocation between cellular vehicle-to-everything (C-V2X) and intelligent transport systems (ITSG5)/dedicated short range communication (DSRC). For example, some embodiments are directed to an electronic device including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to monitor, using the radio front end circuitry, a channel for a time period and determine, based on the monitoring the channel, an average channel occupancy level (COL) of the channel over the time period. The processor circuitry can further be configured to compare the average COL to one or more thresholds and change a resource share of long-term evolution (LTE) cellular vehicle-to-everything (C-V2X) intervals based on the comparison.
Type:
Grant
Filed:
March 18, 2020
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Markus Dominik Mueck, Leonardo Gomes Baltar
Abstract: Embodiments are presented herein of apparatuses, systems, baseband processors, and methods for performing vehicle-to-everything sidelink communication. A wireless device receives first control information through a sidelink control channel specifying one or more first time slots for the wireless device to transmit a first acknowledgment message over a sidelink feedback channel. The wireless device transmits second control information through the sidelink control channel specifying one or more second time slots for the wireless device to receive a second acknowledgment message over the sidelink feedback channel. The first and second time slots at least partially overlap, and it is determined whether the first data packet or the second data packet has a higher priority. The acknowledgment message associated with the higher priority data packet is transmitted or received during at least a subset of the overlapping time slots.
Type:
Grant
Filed:
August 5, 2020
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Chunxuan Ye, Chunhai Yao, Dawei Zhang, Haijing Hu, Haitong Sun, Hong He, Oghenekome Oteri, Sigen Ye, Wei Zeng, Weidong Yang, Yushu Zhang, Zhibin Wu
Abstract: An acoustic imaging system coupled to an acoustic medium to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers formed at least in part from a thin-film piezoelectric material, such as PVDF. The array is coupled to the acoustic medium opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.
Type:
Grant
Filed:
March 30, 2022
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Gordon S. Franza, Mohammad Yeke Yazdandoost, Dale Setlak, Marcus C. Yip, Ehsan Khajeh, Aaron S. Tucker, Andrew W. Joyce, Brian M. King, Giovanni Gozzini, Jason S. Griesbach, Henry H. Yang
Abstract: A multi-level power converter with hysteretic control is disclosed. In one embodiment, a power converter includes a switching circuit and a control circuit. The switching circuit includes a plurality of switches, a capacitor, and a switch node coupled to a regulated supply voltage node via an inductor. The switching circuit is configured to couple the switch node to different circuit nodes according to different switch states. The control circuit is configured to activate a particular set of switches according a current switch state, perform a comparison of an output current of the switching circuit to various threshold values, and determine a next switch state using results of the comparison and duty cycle information. Based on these results, the control circuit is configured to cause a transition from the current switch state to the next switch state by activating a different set of switches according to the next switch state.
Abstract: Devices, methods, and graphical interfaces for content applications displayed in an XR environment provide for an efficient and intuitive user experience. In some embodiments, a content application is displayed in a three-dimensional computer-generated environment. In some embodiments, different viewing modes and user interfaces are available for a content application in a three-dimensional computer-generated environment. In some embodiments, different interactions are available with content items displayed in the XR environment.
Type:
Grant
Filed:
December 25, 2022
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Benjamin Hylak, Aaron M. Burns, Nathan Gitter, Jordan A. Cazamias, Alexis H. Palangie
Abstract: A technique for power saving, comprising establishing a radio resource control (RRC) connection with a wireless system, entering an RRC connected mode based on the established RRC connection, receiving, from the wireless system, configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time, determining an enhanced wake-up signal (EWUS) monitoring occasion for a DRX cycle based on the offset time and the DRX on time period, monitoring, during a first DRX cycle, for an EWUS during the EWUS monitoring occasion associated with the first DRX cycle, receiving, from the wireless system, the EWUS during the EWUS monitoring occasion, determining that the EWUS indicates that the wireless device skip one or more future EWUS monitoring occasions, and skipping monitoring for the EWUS based on the indicated skipped one or more future EWUS monitoring occasions.
Type:
Grant
Filed:
October 14, 2020
Date of Patent:
July 16, 2024
Assignee:
Apple Inc.
Inventors:
Sethuraman Gurumoorthy, Fangli Xu, Adesh Kumar, Birgit Breining, Dawei Zhang, Haijing Hu, Longda Xing, Naveen Kumar R. Palle Venkata, Sarma V. Vangala, Sigen Ye, Srirang A. Lovlekar, Wei Zeng, Yuqin Chen, Zhibin Wu
Abstract: A method for Resource Allocation for Msg-3 Transmission on an unlicensed spectrum may include receiving a random access response (RAR) grant comprising a 12-bit frequency domain resource allocation (FDRA) field. If the resource allocation type is type-1 some embodiments may zero padding the FDRA field to interpreting the 12-bit FDRA and determine a starting position of allocated resources where a Scheduled PUSCH Transmission is transmitted in an unlicensed spectrum. Some embodiments may use a virtual Bandwidth Part (BWP) to obtain a starting position and a length of allocated resources.
Type:
Grant
Filed:
May 15, 2020
Date of Patent:
July 16, 2024
Assignee:
APPLE INC.
Inventors:
Hong He, Chunhai Yao, Chunxuan Ye, Dawei Zhang, Haitong Sun, Jie Cui, Oghenekome Oteri, Wei Zeng, Weidong Yang, Yang Tang, Yushu Zhang
Inventors:
Jody Akana, Molly Anderson, Bartley K. Andre, Shota Aoyagi, Anthony Michael Ashcroft, Marine C. Bataille, Jeremy Bataillou, Abidur Rahman Chowdhury, Clara Geneviève Marine Courtaigne, Markus Diebel, Alexandre B. Girard, Jonathan Gomez Garcia, M. Evans Hankey, Anne-Marie Heck, Moises Hernandez Hernandez, Richard P. Howarth, Julian Jaede, Duncan Robert Kerr, Kainoa Kwon-Perez, Nicolas Pedro Lylyk, Peter Russell-Clarke, Benjamin Andrew Shaffer, Clement Tissandier, Eugene Antony Whang
Inventors:
Alice Marlin Brugger, Manuel Dejesus, Joshua Robert Edwards, Jean-Marc Gady, Wesley Bryan Hamm, Russell John Kaaihue Heirakuji, Allison Inouye, Moritz Wilsberg
Inventors:
Jody Akana, Molly Anderson, Bartley K. Andre, Shota Aoyagi, Anthony Michael Ashcroft, Marine C. Bataille, Jeremy Bataillou, Abidur Chowdhury, Markus Diebel, Daniele De Iuliis, M. Evans Hankey, Julian Hoenig, Richard P. Howarth, Jonathan P. Ive, Julian Jaede, Duncan Robert Kerr, Peter Russell-Clarke, Benjamin Andrew Shaffer, Mikael Silvanto, Joe Sung-Ho Tan, Clement Tissandier, Eugene Antony Whang, Rico Zörkendörfer