-
公开(公告)号：US11722230B2
公开(公告)日：2023-08-08
申请号：US17065829
申请日：2020-10-08
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.
-
公开(公告)号：US20230361460A1
公开(公告)日：2023-11-09
申请号：US17738787
申请日：2022-05-06
Applicant: Apple Inc.
Inventor： Xiaofang Mu , Chi V Pham , Mingjuan Zhu , Bo Tong Deng , Bo Zhang , Srinivasa Yasasvy Sateesh Bhamidipati , Vineet Nayak , Daniel C Kong
IPC: H01Q1/52 , H01L23/552 , H01L23/498 , H01Q1/48 , H01Q1/22
CPC classification number: H01Q1/526 , H01L23/552 , H01L23/49827 , H01Q1/48 , H01Q1/2283 , H01L2223/6677
Abstract: Techniques to reduce signal interference between wired signals communicated within an electronic device and wireless signals transmitted to or received from antennas of the electronic device are disclosed. The electronic device includes an interposer with an inner fence and an outer fence having offset gaps to prevent a pathway otherwise formed by overlapping tabs, where the pathway allows noise leakage from the wired signals. In some embodiments, the electronic device (e.g., in a main logic board package) includes a ground fencing of ground vias to prevent the noise leakage from harmonics associated with signal vias communicating the wired signals. The spacing between the ground vias is based on frequencies of signals that the ground vias are intended to block.
-
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.
-
公开(公告)号：US11349533B2
公开(公告)日：2022-05-31
申请号：US16145990
申请日：2018-09-28
Applicant: Apple Inc.
IPC: H04B7/0456 , H04B7/06 , H01Q1/22
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.
-
公开(公告)号：US20190319583A1
公开(公告)日：2019-10-17
申请号：US15951946
申请日：2018-04-12
Applicant: Apple Inc.
Inventor： Wassim El-Hassan , Gurusubrahmaniyan Subrahmaniyan Radhakrishnan , Vineet Nayak , Srinivasa Yasasvy Sateesh Bhamidipati , Jaydeep Vijay Ranade
Abstract: The representative embodiments discussed in the present disclosure relate to techniques in which the operating characteristics (e.g., power consumption) of a power amplifier in a transceiver may be regulated according to an operation mode of the transceiver. More specifically, in some embodiments, different LUTs may be employed for each mode of operation to suitably adjust the supply voltage (e.g., bias voltage) and/or quiescent current input to the power amplifier based on an input signal and a margin by which transmission standards are met. Further, in some embodiments, a method to calibrate a LUT for average power tracking and/or envelope tracking in a transceiver mode of operation may be employed to populate a LUT that may be used to suitably adjust the power and/or current consumption of the power amplifier.
-
Patent Agency Ranking
公开(公告)号：US20190081712A1
公开(公告)日：2019-03-14
申请号：US15862279
申请日：2018-01-04
Applicant: Apple Inc.
Inventor： Wassim El-Hassan , Mohammad Reza Ghajar , Gurusubrahmaniyan Subrahmaniyan Radhakrishnan , Vineet Nayak , Srinivasa Yasasvy Sateesh Bhamidipati
Abstract: The representative embodiments discussed in the present disclosure relate to techniques in which the operating characteristics (e.g., gain and/or efficiency) of a power amplifier in a transmitter may be regulated according to an operation mode of the transmitter. More specifically, in some embodiments, different LUTs may be employed for each mode of operation to suitably adjust the supply voltage to the power amplifier and modulate its operating characteristics based on power input to the power amplifier. Further, in some embodiments, a method to calibrate a LUT for ULCA, an operation mode of the transmitter, may be employed to populate a LUT that may be used to suitably adjust the supply voltage during ULCA.
-
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.
-
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.
-
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.
-
公开(公告)号：US20250149782A1
公开(公告)日：2025-05-08
申请号：US19020580
申请日：2025-01-14
Applicant: Apple Inc.
Inventor： Xiaofang Mu , Chi V. Pham , Mingjuan Zhu , Bo Tong Deng , Bo Zhang , Srinivasa Yasasvy Sateesh Bhamidipati , Vineet Nayak , Daniel C. Kong
IPC: H01Q1/52 , H01L23/498 , H01L23/552 , H01Q1/22 , H01Q1/48 , H05K1/02
Abstract: Techniques to reduce signal interference between wired signals communicated within an electronic device and wireless signals transmitted to or received from antennas of the electronic device are disclosed. The electronic device includes an interposer with an inner fence and an outer fence having offset gaps to prevent a pathway otherwise formed by overlapping tabs, where the pathway allows noise leakage from the wired signals. In some embodiments, the electronic device (e.g., in a main logic board package) includes a ground fencing of ground vias to prevent the noise leakage from harmonics associated with signal vias communicating the wired signals. The spacing between the ground vias is based on frequencies of signals that the ground vias are intended to block.
-
-
-
-
-
-
-
-
-
Search Results
14
records
(took 0.013 seconds)
