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公开(公告)号：US20240323471A1
公开(公告)日：2024-09-26
申请号：US18592372
申请日：2024-02-29
Applicant: Apple Inc.
Inventor： Daphne I. Gorman , Wassim El-Hassan
IPC: H04N21/41 , G06F3/0346 , G06F3/0354 , H04N21/414 , H04N21/426 , H04N21/4363 , H04N21/643
CPC classification number: H04N21/41265 , G06F3/0346 , G06F3/03545 , H04N21/41407 , H04N21/42607 , H04N21/43637 , H04N21/643
Abstract: A stylus usable with an electronic device to provide an input to the electronic device, may include a stylus body, a battery within the stylus body, a first antenna configured to receive a broadcast signal, the broadcast signal including video content, a second antenna configured to communicate with a remote electronic device via a wireless communication protocol, and a processing system configured to receive the broadcast signal from the antenna, demodulate the broadcast signal to produce a digital content signal including the video content, encode the digital content signal according to the wireless communication protocol to produce an encoded digital content signal, and send to the remote electronic device, via the second antenna, the encoded digital content signal.
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2.发明公开公开(公告)号：US20240297669A1
公开(公告)日：2024-09-05
申请号：US18430059
申请日：2024-02-01
Applicant: Apple Inc.
Inventor： Wassim El-Hassan , Brian H Bremer , Lydi Smaini , Abhinav Dayal , Daphne I Gorman , Xuefeng Zhao , Kai Bai
CPC classification number: H04B1/0064 , H03F3/19 , H04B1/0075 , H03F2200/451
Abstract: Wireless communication circuitry includes a single transmission pathway for transmitting radio frequency signals in different frequency bands used for communicating on different types of wireless networks.
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公开(公告)号：US20240147365A1
公开(公告)日：2024-05-02
申请号：US18474921
申请日：2023-09-26
Applicant: Apple Inc.
Inventor： Wassim El-Hassan , Abhinav Dayal , Andrea Ruaro , Brian H. Bremer , Daphne I. Gorman , Lydi Smaini
IPC: H04W52/02
CPC classification number: H04W52/0229 , H04W52/0245
Abstract: Electronic devices may be provided with wireless circuitry having an antenna, a primary receiver, and a secondary receiver. The primary receiver may be coupled to the antenna over a first signal path having a low noise amplifier. An input of the primary receiver may be coupled to the first signal path and an input of the secondary receiver may be coupled to a node on the first signal path over a second signal path. The primary receiver may consume more power and exhibit more linearity than the secondary receiver. The secondary receiver may wake while the primary receiver is asleep and may wake the primary receiver when paging signals are received. If desired, the wireless circuitry may be switched between a single-receiver mode and a receiver diversity mode based on wireless performance metric data gathered by the primary receiver and/or the secondary receiver.
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公开(公告)号：US20200106506A1
公开(公告)日：2020-04-02
申请号：US16145829
申请日：2018-09-28
Applicant: Apple Inc.
IPC: H04B7/06 , H04B7/0456
Abstract: Wireless network interfaces that are capable of transmitting and/or receiving beamformed radiofrequency (RF) signals may be assisted by the use of codebooks. Electronic devices with memory to store a database of codebooks may be used to increase the number of entries available for operation. The database of codebooks may employ environmental parameters to improve efficiency of the wireless network interface. Methods for calibration of electronic devices and/or adjustment and selection of codebooks based on the parameters are also described. The calibration may employ a testing chamber that measure powers at in a limited number of angles.
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公开(公告)号：US09654154B2
公开(公告)日：2017-05-16
申请号：US14794412
申请日：2015-07-08
Applicant: Apple Inc.
IPC: H03F1/32 , H03G3/30 , H04W52/02 , H04B1/04 , H03F3/19 , H03G1/00 , H03F1/02 , H03G3/00 , H03F3/24 , H04B17/13
CPC classification number: H04B1/0475 , H03F1/0211 , H03F1/0227 , H03F1/3247 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/321 , H03F2200/451 , H03F2201/3227 , H03G1/0005 , H03G3/004 , H04B17/13 , H04W52/0225 , H04W52/0251 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/40
Abstract: Systems and method for improving operation of a radio frequency system are provided. One embodiment includes instructions to execute a coarse calibration to associate a first output power with a first operational parameter set; instruct the radio frequency system to transmit a signal based at least in part on the first operational parameter set and a base detrough function; determine performance metrics resulting from transmission of the signal; determine changes in the performance metrics resulting from operating the radio frequency based at least in part on the first operational parameter set and each of a plurality of augmented detrough functions; and associate a second operational parameter set with a second output power, in which the second operational parameter set includes one of the plurality of augmented detrough functions selected based at least in part on the changes that reduce margin between the performance metrics and performance metric thresholds.
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Patent Agency Ranking
公开(公告)号：US09634695B1
公开(公告)日：2017-04-25
申请号：US15269805
申请日：2016-09-19
Applicant: Apple Inc.
Inventor： Gurusubrahmaniyan Subrahmaniyan Radhakrishnan , Wassim El-Hassan , Srinivasa Yasasvy Sateesh Bhamidipati , Hailong Yang
CPC classification number: H04B1/04 , H04B1/0475 , H04B2001/0425 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23 , Y02D70/40
Abstract: An electronic device may include wireless communications circuitry that has first and second digital predistortion circuits. The first predistortion circuit receives a first signal at a first frequency while the second predistortion circuit receives a second signal at a second frequency. The first circuit may perform predistortion operations on the first signal using non-unity predistortion coefficients to generate a predistorted signal. The second circuit may apply unity predistortion coefficients to the second signal to generate an undistorted signal. An adder may combine the predistorted and undistorted signals to generate a combined signal that is amplified by amplifier circuitry. An antenna may transmit the amplified signal. By over-distorting the first signal with the first predistortion circuit while the second predistortion circuit does not distort the second signal, the circuitry may mitigate non-linearity in the amplifier while allowing for carrier aggregation operations to be performed with minimal power consumption.
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公开(公告)号：US20230361889A1
公开(公告)日：2023-11-09
申请号：US18356898
申请日：2023-07-21
Applicant: Apple Inc.
Inventor： Wassim El-Hassan , Gurusubrahmaniyan Subrahmaniyan Radhakrishnan , Srinivasa Yasasvy Sateesh Bhamidipati , Daphne Irene Gorman , Vineet Nayak , Xuefeng Zhao
CPC classification number: H04B17/13 , H01Q1/002 , H01Q3/34 , H01Q23/00 , H04B17/102 , H04W52/228
Abstract: A radio frequency device includes antennas, transmitters, power detectors, a memory storing instructions and an antenna gain lookup table, and processors. The processors execute instructions that include instructing the transmitters to send transmission signals through the antennas to form a first beamformed signal having a first beam direction and a first frequency using multiple input powers. The instructions include determining radio frequency integrated circuit (RFIC) gains associated with the transmitters based on the transmission signals using the power detectors. Moreover, the instructions include determining the antenna gains for the antennas based on the first beam direction and the first frequency of the first beamformed signal, and the antenna gain lookup table. The instructions also include determining total gains based on the RFIC gains and the antenna gains, and adjusting the input powers based on the total gains and a back off power signal.
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8.发明授权公开(公告)号：US11012164B2
公开(公告)日：2021-05-18
申请号：US16585335
申请日：2019-09-27
Applicant: Apple Inc.
Inventor： Wassim El-Hassan , Bassel Husam Alesh , Srinivasa Yasasvy Sateesh Bhamidipati , Daphne Irene Gorman , Vineet Nayak , Xuefeng Zhao , Xiaohui Gong
Abstract: An electronic device has multiple transmitters to transmit multiple signals. The electronic device also has a receiver to receive a signal. Moreover, the electronic device has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to send a test transmission signal from a transmitter of the multiple of transmitters, receive the test transmission signal at the receiver, and determine a gain of the test transmission signal. In response to determining that the gain is within a threshold range of an initial gain, the instructions cause the processor to send an indication that the receiver is operating as expected.
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公开(公告)号：US10833750B2
公开(公告)日：2020-11-10
申请号：US16145829
申请日：2018-09-28
Applicant: Apple Inc.
IPC: H04B7/06 , H04B7/0456 , H04L25/03 , H04B7/0426
Abstract: Wireless network interfaces that are capable of transmitting and/or receiving beamformed radiofrequency (RF) signals may be assisted by the use of codebooks. Electronic devices with memory to store a database of codebooks may be used to increase the number of entries available for operation. The database of codebooks may employ environmental parameters to improve efficiency of the wireless network interface. Methods for calibration of electronic devices and/or adjustment and selection of codebooks based on the parameters are also described. The calibration may employ a testing chamber that measure powers at in a limited number of angles.
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公开(公告)号：US10666366B2
公开(公告)日：2020-05-26
申请号：US16026808
申请日：2018-07-03
Applicant: Apple Inc.
Inventor： Wassim El-Hassan , Yingjie Xu
Abstract: An electronic device may include a feedback circuit that may determine an error of a first signal to be transmitted to a second electronic device. The electronic device may also include a transceiver that may adjust the first signal based on the error and send the adjusted first signal to the second electronic device. The electronic device may also include a coupler circuitry configured to route a second signal received from the second electronic device or a third electronic device to the feedback circuit, such that the feedback circuit may determine one or more properties associated with the second signal.
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