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51.发明申请Methods and Apparatus for Testing Electronic Devices Under Specified Radio-frequency Voltage and Current Stress 有权在指定的射频电压和电流应力下测试电子设备的方法和装置公开(公告)号：US20140302797A1
公开(公告)日：2014-10-09
申请号：US13873048
申请日：2013-04-29
Applicant: APPLE INC.
Inventor： Liang Han , Matthew A. Mow , James G. Judkins , Thomas E. Biedka , Ming-Ju Tsai , Robert W. Schlub
IPC: H04W24/06
CPC classification number: H04W24/06 , H03F1/565 , H03F3/195 , H03F3/245 , H03F2200/111 , H03F2200/222 , H04B17/0085 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23
Abstract: Test systems for characterizing devices under test (DUTs) are provided. A test system for testing a DUT in a shunt configuration may include a signal generator and a matching network that is coupled between the signal generator and the DUT and that is optimized to apply desired voltage/current stress to the DUT with reduced source power. The matching network may be configured to provide matching and desired stress levels at two or more frequency bands. In another suitable embodiment, a test system for testing a DUT in a series configuration may include a signal generator, an input matching network coupled between the DUT and a first terminal of the DUT, and an output matching network coupled between the DUT and a second terminal of the DUT. The input and output matching network may be optimized to apply desired voltage/current stress to the DUT with reduced source power.
Abstract translation: 提供了用于表征被测设备（DUT）的测试系统。 用于在分流配置中测试DUT的测试系统可以包括信号发生器和耦合在信号发生器和DUT之间的匹配网络，并且被优化以在具有降低的源功率的DUT上施加期望的电压/电流应力。 匹配网络可以被配置为在两个或更多个频带处提供匹配和期望的应力水平。 在另一个合适的实施例中，用于测试串联配置中的DUT的测试系统可以包括信号发生器，耦合在DUT和DUT的第一端之间的输入匹配网络，以及耦合在DUT和第二个DUT之间的输出匹配网络 DUT的端子。 可以优化输入和输出匹配网络，以便以较低的源功率将所需的电压/电流应力施加到DUT。
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公开(公告)号：US20140266941A1
公开(公告)日：2014-09-18
申请号：US14096417
申请日：2013-12-04
Applicant: Apple Inc.
Inventor： Enrique Ayala Vazquez , Hongfei Hu , Mattia Pascolini , Yuehui Ouyang , Yijun Zhou , Matthew A. Mow , Robert W. Schlub , Erdinc Irci , Salih Yarga , Ming-Ju Tsai , Liang Han , Thomas E. Biedka , Nicholas S. Reimnitz
IPC: H01Q13/10
CPC classification number: H01Q13/103 , H01Q1/243 , H01Q5/357 , H01Q9/145 , H01Q9/42
Abstract: An electronic device may be provided with a housing. The housing may have a periphery that is surrounded by peripheral conductive structures such as a segmented peripheral metal member. A segment of the peripheral metal member may be separated from a ground by a slot. An antenna feed may have a positive antenna terminal coupled to the peripheral metal member and a ground terminal coupled to the ground and may feed both an inverted-F antenna structure that is formed from the peripheral metal member and the ground and a slot antenna structure that is formed from the slot. Control circuitry may tune the antenna by controlling adjustable components that are coupled to the peripheral metal member. The adjustable components may include adjustable inductors and adjustable capacitors.
Abstract translation: 电子设备可以设置有壳体。 壳体可以具有被诸如分段的外围金属构件的外围导电结构包围的周边。 外围金属构件的一段可以通过狭槽与地面分离。 天线馈电可以具有耦合到外围金属构件的正天线端子和耦合到地面的接地端子，并且可以馈送由外围金属构件和地面形成的倒F形天线结构和缝隙天线结构， 由槽形成。 控制电路可以通过控制耦合到外围金属构件的可调组件来调谐天线。 可调部件可以包括可调电感器和可调电容器。
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公开(公告)号：US20140167794A1
公开(公告)日：2014-06-19
申请号：US13715648
申请日：2012-12-14
Applicant: APPLE INC.
Inventor： Jayesh Nath , Liang Han , Matthew A. Mow , Ming-Ju Tsai , Joshua G. Nickel , Hao Xu , Peter Bevelacqua , Mattia Pascolini , Robert W. Schiub , Ruben Caballero
IPC: G01R35/00
CPC classification number: G01R35/007 , G01R31/2822 , G01R31/2879 , G01R31/3191
Abstract: A manufacturing system for assembling wireless electronic devices is provided. The manufacturing system may include test stations for testing the radio-frequency performance of components that are to be assembled within the electronic devices. A reference test station may be calibrated using calibration coupons having known radio-frequency characteristics. The calibration coupons may include transmission line structures. The reference test station may measure verification standards to establish baseline measurement data. The verification standards may include circuitry having electrical components with given impedance values. Many verification coupons may be measured to enable testing for a wide range of impedance values. Test stations in the manufacturing system may subsequently measure the verification standards to generate test measurement data. The test measurement data may be compared to the baseline measurement data to characterize the performance of the test stations to ensure consistent test measurements across the test stations.
Abstract translation: 提供了一种用于组装无线电子设备的制造系统。 制造系统可以包括用于测试要在电子设备内组装的组件的射频性能的测试站。 可以使用具有已知射频特性的校准试样来校准参考测试台。 校准试样可以包括传输线结构。 参考测试站可以测量验证标准以建立基线测量数据。 验证标准可以包括具有给定阻抗值的电气部件的电路。 可以测量许多验证券，以测试宽范围的阻抗值。 制造系统中的测试台随后可以测量验证标准以产生测试测量数据。 可以将测试测量数据与基线测量数据进行比较，以表征测试站的性能，以确保跨越测试站的一致的测试测量。
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54.发明申请公开(公告)号：US20140087668A1
公开(公告)日：2014-03-27
申请号：US13629414
申请日：2012-09-27
Applicant: APPLE INC
Inventor： Matthew A. Mow , Thomas E. Biedka , Ming-Ju Tsai , Liang Han , Xu Han , Anand Lakshmanan , Nanbo Jin , Hongfei Hu , Dean F. Darnell , Joshua G. Nickel , Jayesh Nath , Yijun Zhou , Hao Xu , Yuehui Ouyang , Nirali Shah , Mattia Pascolini , Robert W. Schlub , Ruben Caballero
IPC: H04W24/00
CPC classification number: H04W24/08 , H04B17/318 , H04B17/345 , H04W24/06
Abstract: Radio frequency test systems for characterizing antenna performance in various radio coexistence scenarios are provided. In one suitable arrangement, a test system may be used to perform passive radio coexistence characterization. During passive radio coexistence characterization, at least one signal generator may be used to feed aggressor signals directly to antennas within an electronic device under test (DUT). The aggressor signals may generate undesired interference signals in a victim frequency band, which can then be received and analyzed using a spectrum analyzer. During active radio coexistence characterization, at least one radio communications emulator may be used to communicate with a DUT via a first test antenna. While the DUT is communicating with the at least one radio communications emulator, test signals may also be conveyed between DUT 10 and a second test antenna. Test signals conveyed through the second test antenna may be used in obtaining signal interference level measurements.
Abstract translation: 提供了用于在各种无线电共存场景中表征天线性能的射频测试系统。 在一种合适的布置中，可以使用测试系统来执行被动无线电共存表征。 在被动无线电共存表征期间，可以使用至少一个信号发生器将攻击者信号直接馈送到被测电子设备（DUT）内的天线。 攻击者信号可能在受害频段中产生不期望的干扰信号，然后使用频谱分析仪接收和分析。 在有源无线电共存表征期间，可以使用至少一个无线电通信仿真器来经由第一测试天线与DUT进行通信。 当DUT正在与至少一个无线电通信仿真器进行通信时，也可以在DUT 10和第二测试天线之间传送测试信号。 通过第二测试天线传送的测试信号可用于获得信号干扰电平测量。
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公开(公告)号：US11569858B2
公开(公告)日：2023-01-31
申请号：US16898069
申请日：2020-06-10
Applicant: Apple Inc.
Inventor： Liang Han , Enrique Ayala Vazquez , Thomas E. Biedka , Hongfei Hu , Erdinc Irci , Nanbo Jin , James G. Judkins , Victor C. Lee , Matthew A. Mow , Mattia Pascolini , Ming-Ju Tsai , Yiren Wang , Yuancheng Xu , Yijun Zhou
Abstract: A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.
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Patent Agency Ranking
公开(公告)号：US11322840B2
公开(公告)日：2022-05-03
申请号：US17025987
申请日：2020-09-18
Applicant: Apple Inc.
Inventor： Yiren Wang , Daisong Zhang , Erdinc Irci , Han Wang , Hongfei Hu , Jingni Zhong , Liang Han , Mattia Pascolini , Ming Chen , Nanbo Jin , Tiejun Yu , Yijun Zhou , Yuan Tao , Yuancheng Xu
Abstract: An electronic device may be provided with wireless circuitry and a housing with upper and lower ends. The lower end may include first and second open slot antennas that are directly fed by respective feeds and that radiate in a cellular ultra-high band. The lower end may also include first and second inverted-F antennas. The upper end may include third and fourth inverted-F antennas. The first inverted-F antenna may have a first feed that conveys currents below 2700 MHz and a second feed that conveys antenna currents in the cellular ultra-high band, a wireless local area network band, and/or ultra-wideband frequency bands. If desired, the upper end may include a third open slot antenna that is directly fed by a corresponding antenna feed and that radiates in the cellular ultra-high band and/or in the ultra-wideband frequency bands.
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公开(公告)号：US20200274570A1
公开(公告)日：2020-08-27
申请号：US15930298
申请日：2020-05-12
Applicant: Apple Inc.
Inventor： Liang Han , Matthew A. Mow , Mattia Pascolini , Ruben Caballero , Thomas E. Biedka , Yuancheng Xu , Iyappan Ramachandran
IPC: H04B1/3827 , H04M1/03 , H04M1/02 , G06K9/20 , H04M1/725 , G06K9/62 , G06T7/521 , H04W52/28 , G06T7/55
Abstract: An electronic device may include control circuitry, sensors, and wireless circuitry having antennas. The sensors may generate sensor data that is used by the control circuitry to identify an operating environment for the device. The sensor data may include a grip map generated by a touch-sensitive display, infrared facial recognition image signals or other image signals, an angle of arrival of sound received by a set of microphones, impedance data from an impedance sensor, and any other desired sensor data. The control circuitry may use the sensor data, radio-frequency spatial ranging data, information about whether audio is being played over an ear speaker, and/or information about communications protocols in use to identify the operating environment. The control circuitry may adjust antenna settings for the wireless circuitry based on the identified operating environment to ensure that the antennas operate with satisfactory antenna efficiency regardless of operating conditions.
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公开(公告)号：US10554240B2
公开(公告)日：2020-02-04
申请号：US14980603
申请日：2015-12-28
Applicant: Apple Inc.
Inventor： Liang Han , Matthew A. Mow
Abstract: An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas. The electronic device may have a housing in which control circuitry and radio-frequency transceiver circuitry is mounted. The transceiver circuitry may be used to transmit and receive radio-frequency signals using the antennas. The electronic device may have radio-frequency sensors. The radio-frequency sensors may include current sensors, voltage sensors, power sensors, sensors with taps and switching circuitry that tap signals flowing in a signal path and that may make measurements such as impedance measurements, and radio-frequency sensors with sensor antennas and associated sensor circuits that measure radio-frequency signals received using the sensor antennas. The control circuitry may make wireless circuit adjustments based on measured radio-frequency signals.
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公开(公告)号：US10476167B2
公开(公告)日：2019-11-12
申请号：US15655660
申请日：2017-07-20
Applicant: Apple Inc.
Inventor： Enrique Ayala Vazquez , Nanbo Jin , Hongfei Hu , Han Wang , Erdinc Irci , Erica J. Tong , Matthew A. Mow , Ming-Ju Tsai , Liang Han , Georgios Atmatzakis , Mattia Pascolini
Abstract: An electronic device may include antennas, a ground, and a housing. First and second gaps in the housing may define a segment that forms a resonating element for a first antenna. First, second, third, and fourth antenna feeds may be coupled between the segment and ground. Control circuitry may control adjustable components to place the device in first, second, third, or fourth modes. In the first and second modes, the first and fourth feeds convey signals at the same frequency using a multiple-input and multiple-output scheme while the second and third feeds are inactive. In the third mode, the second feed is active and the first, third, and fourth feeds are inactive. In the fourth mode, the third feed is active and the first, second, and fourth antenna feeds are inactive. Isolating return paths may be coupled between the segment and ground in the first and second modes.
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公开(公告)号：US20190081615A1
公开(公告)日：2019-03-14
申请号：US15700580
申请日：2017-09-11
Applicant: Apple Inc.
Inventor： Jennifer M. Edwards , Yijun Zhou , Yiren Wang , Hao Xu , Ming-Ju Tsai , Victor C. Lee , Liang Han , Matthew A. Mow , Mattia Pascolini
Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include an antenna with an inverted-F antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. The antenna may include a first adjustable component coupled between the antenna resonating element arm and the antenna ground on a first side of the antenna feed and a second adjustable component coupled between the antenna resonating element arm and the antenna ground on a second side of the antenna feed. Control circuitry in the electronic device may adjust the first and second adjustable components between a first tuning mode, a second tuning mode, and a third tuning mode.
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