-
公开(公告)号：US11159266B2
公开(公告)日：2021-10-26
申请号：US16107763
申请日：2018-08-21
申请人： Apple Inc.
发明人： Xi Yang , Peter M. Agboh , Qiyang Wu , Vusthla Sunil Reddy , Shrenik Milapchand , Manjit S. Walia
摘要： A device in an adaptive channel access system may include a processor that is configured initiate access of a channel, and perform a first jammer detection on the channel. The processor is configured to, when a jamming device is detected on the channel, access the channel with a channel occupancy time set to a first duration of time. The processor is configured to, when no jamming devices are detected: access the channel with the channel occupancy time set to the second duration of time that is greater than the first duration, while accessing the channel with the channel occupancy time set to the second duration of time, perform a second jammer detection on the channel, and when the jamming device is detected, cease to access the channel prior to the expiration of the second duration of time, otherwise continue to access the channel without re-initiating access of the channel.
-
公开(公告)号：US20190305595A1
公开(公告)日：2019-10-03
申请号：US15997508
申请日：2018-06-04
申请人： Apple Inc.
发明人： Soumya Mantha , Manjit S. Walia , Rahul A. Sabnani , Yiling Xu
摘要： A wireless power transmitting device includes a plurality of coils and respective wireless power transmitting circuitry coupled to each coil. The wireless power transmitting circuitry coupled to each coil may include an inverter and adjustable circuitry that is configured to mitigated radiated emissions in nominally passive coils in the power transmitting device. The wireless power transmitting circuitry coupled to each coil in the wireless power transmitting device may include adjustable circuitry coupled to an inverter output terminal in parallel or in series with the coil. The adjustable circuitry may have a variable capacitance that is controlled based on whether the coil is in an active or passive mode. The capacitance of the adjustable circuitry may be varied in a repeating cycle when the coil is in a passive mode. The adjustable circuitry may include one or more capacitors coupled between the inverter output terminal and ground.
-
3.发明申请FREQUENCY BANDWIDTH AND CHANNEL DEPENDENT TRANSMITTING POWER FOR LTE DEVICES 审中-公开用于LTE设备的频率带宽和频道依赖发射功率公开(公告)号：US20160360496A1
公开(公告)日：2016-12-08
申请号：US14732080
申请日：2015-06-05
申请人： APPLE INC.
发明人： Abhishek A. Mehta , Jianjian Li , Kaushal K. Mangtani , Manjit S. Walia , Mohit Narang , Peter M. Agboh , Rahul A. Sabnani , Shrenik Milapchand , Vikas O. Jain
CPC分类号： H04W52/283 , H04W52/0209 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/168 , Y02D70/26
摘要： Methods and devices for reducing the power consumption and increasing the efficiency of an LTE transmitter of an electronic device are provided. By way of example, a method includes calculating location data related to a region in which the electronic device may operate via the electronic device, determining via the electronic device a region in which the electronic device is currently operating within based on the location data, and adjusting an output transmitting power of the electronic device based at least in part on the region and one or more frequency operating parameters utilized by the electronic device.
摘要翻译： 提供了用于降低功率消耗并提高电子设备的LTE发射机的效率的方法和设备。 作为示例，一种方法包括计算与电子设备可以经由电子设备操作的区域相关的位置数据，基于位置数据，经由电子设备确定电子设备当前在其中操作的区域;以及 至少部分地基于该电子设备所使用的区域和一个或多个频率操作参数来调整电子设备的输出发送功率。
-
公开(公告)号：US11184810B2
公开(公告)日：2021-11-23
申请号：US16540301
申请日：2019-08-14
申请人： Apple Inc.
发明人： Vusthla Sunil Reddy , Alejandro J. Marquez , Indranil S. Sen , Manjit S. Walia , Peter M. Agboh , Shang-Te Yang , Xiaoming Yu
摘要： Methods and apparatuses are presented to locate a wireless communication device. A target device may be out of range of a source device for normal ranging communications according to a first radio access technology (RAT), such as ultra wideband (UWB) communications. A source device may therefore modify communications according to the first RAT, to increase the transmit power, while removing the data payload. The target device may utilize the signal strength and angle of arrival of the modified communications to guide the user to move toward the source device, e.g., until the target device is within range to perform normal ranging communications. A second RAT, such as Bluetooth, may be used to communicate between the two devices while the target device is out of range of the first RAT. For example, the target device may use the second RAT to communicate to the source device to start/stop transmitting modified communications.
-
公开(公告)号：US20190305596A1
公开(公告)日：2019-10-03
申请号：US16005382
申请日：2018-06-11
申请人： Apple Inc.
发明人： Soumya Mantha , Manjit S. Walia , Rahul A. Sabnani
IPC分类号： H02J50/12 , H02J7/02 , H02M7/5395
摘要： A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may include an inverter configured to drive a resonant circuit and may further include a sinusoidal pulse-width modulation (PWM) signal generator configured to generate a corresponding sinusoidal PWM control signal. The inverter may have an input that receives the sinusoidal PWM control signal. The sinusoidal PWM control signal may exhibit a plurality of different pulse widths summing to the target duty cycle of the sinusoidal PWM control signal. Operated in this way, the wireless power transmitting device exhibits reduced harmonic distortions, which mitigates undesired radiated spurious emissions.
-
公开(公告)号：US20160262110A1
公开(公告)日：2016-09-08
申请号：US14641145
申请日：2015-03-06
申请人： APPLE INC.
发明人： Jianjian Li , Vikas O. Jain , Peter M. Agboh , Kaushal K. Mangtani , Manjit S. Walia , Mohit Narang , Abhishek Mehta , Ruben Caballero
IPC分类号： H04W52/22
CPC分类号： H04W52/226 , H04W52/367 , H04W52/52
摘要： Systems and method for improving design and/or operation of a radio frequency system are provided. One embodiment provides a radio frequency system, which includes a first look-up table that describes a static reference value, association between a maximum output power and a first specification level, and association between a first back off value and a second specification level, in which the first back off value is defined in relation to the static reference value and used to determine a first reduced output power; and a second look-up table that describes association between the maximum output power and a first set of operational parameters and association between the first reduced output power and a second set of operational parameters. The radio frequency system wirelessly transmits the analog electrical signal in compliance with an instructed specification level instruction by determining a desired output power based on the instructed specification level using the first look-up table and implementing operational parameters determined based on the desired output power using the second look-up table.
摘要翻译： 提供了改善射频系统的设计和/或操作的系统和方法。 一个实施例提供一种射频系统，其包括描述静态参考值的第一查找表，最大输出功率和第一规范级之间的关联以及第一退避值和第二规范级之间的关联， 其中第一退避值相对于静态参考值定义并用于确定第一减小输出功率; 以及第二查找表，其描述了最大输出功率与第一组操作参数之间的关联以及第一降低输出功率与第二组操作参数之间的关联。 无线电频率系统通过使用第一查找表根据所指示的规格级别确定期望的输出功率并根据所指示的规范级别指令无线地发送模拟电信号，并且使用第一查询表确定基于期望输出功率确定的操作参数 第二查表。
-
公开(公告)号：US20210051532A1
公开(公告)日：2021-02-18
申请号：US16540301
申请日：2019-08-14
申请人： Apple Inc.
发明人： Vusthla Sunil Reddy , Alejandro J. Marquez , Indranil S. Sen , Manjit S. Walia , Peter M. Agboh , Shang-Te Yang , Xiaoming Yu
摘要： Methods and apparatuses are presented to locate a wireless communication device. A target device may be out of range of a source device for normal ranging communications according to a first radio access technology (RAT), such as ultra wideband (UWB) communications. A source device may therefore modify communications according to the first RAT, to increase the transmit power, while removing the data payload. The target device may utilize the signal strength and angle of arrival of the modified communications to guide the user to move toward the source device, e.g., until the target device is within range to perform normal ranging communications. A second RAT, such as Bluetooth, may be used to communicate between the two devices while the target device is out of range of the first RAT. For example, the target device may use the second RAT to communicate to the source device to start/stop transmitting modified communications.
-
公开(公告)号：US10390313B2
公开(公告)日：2019-08-20
申请号：US15014506
申请日：2016-02-03
申请人： Apple Inc.
发明人： Mohit Narang , Peter Agboh , Vusthla Sunil Reddy , Chia Yiaw Chong , Indranil S. Sen , Ruben Caballero , Manjit S. Walia , Xi Yang
摘要： In order to improve communication with another electronic device, during an advertising mode an electronic device (such as a smartphone) may transmit a packet with advertising information using a default transmit power level. Then, based on feedback about a performance metric associated with the communication from the other electronic device, the electronic device may selectively increase the transmit power level for a subsequent packet. Because this selective increase in the transmit power level may increase the overall power consumption, the change in the transmit power level also may depend on one or more factors, such as a battery power level of the electronic device. However, the selective increase in the transmit power level may, in some instances, decrease the overall power consumption by reducing or eliminating retries.
-
公开(公告)号：US20160066267A1
公开(公告)日：2016-03-03
申请号：US14474718
申请日：2014-09-02
申请人： Apple Inc.
发明人： Mohit Narang , Peter M. Agboh , Vusthla Sunil Reddy , Chia Yiaw Chong , Indranil S. Sen , Ruben Caballero , Manjit S. Walia , Xi Yang
CPC分类号： H04W52/0209 , H04W4/80 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144
摘要： In order to improve communication with another electronic device, during an advertising mode an electronic device (such as a smartphone) may transmit a packet with advertising information using a default transmit power level. Then, based on feedback about a performance metric associated with the communication from the other electronic device, the electronic device may selectively increase the transmit power level for a subsequent packet. Because this selective increase in the transmit power level may increase the overall power consumption, the change in the transmit power level may depend on a battery power level of the electronic device. However, the selective increase in the transmit power level may decrease the overall power consumption by reducing or eliminating retries.
摘要翻译： 为了改善与另一电子设备的通信，在广告模式期间，电子设备（例如智能电话）可以使用默认发送功率电平来发送具有广告信息的分组。 然后，基于与来自其他电子设备的通信相关联的性能度量的反馈，电子设备可以选择性地增加后续分组的发射功率电平。 因为发射功率电平的这种选择性增加可能会增加总功耗，所以发射功率电平的变化可能取决于电子设备的电池功率电平。 然而，发射功率电平的选择性增加可以通过减少或消除重试来降低总功耗。
-
公开(公告)号：US11196298B2
公开(公告)日：2021-12-07
申请号：US16005382
申请日：2018-06-11
申请人： Apple Inc.
发明人： Soumya Mantha , Manjit S. Walia , Rahul A. Sabnani
IPC分类号： H02J50/12 , H02M7/5395 , H02J7/02
摘要： A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may include an inverter configured to drive a resonant circuit and may further include a sinusoidal pulse-width modulation (PWM) signal generator configured to generate a corresponding sinusoidal PWM control signal. The inverter may have an input that receives the sinusoidal PWM control signal. The sinusoidal PWM control signal may exhibit a plurality of different pulse widths summing to the target duty cycle of the sinusoidal PWM control signal. Operated in this way, the wireless power transmitting device exhibits reduced harmonic distortions, which mitigates undesired radiated spurious emissions.
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.017 秒)
