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公开(公告)号：US10588086B1
公开(公告)日：2020-03-10
申请号：US16217357
申请日：2018-12-12
Applicant: Apple Inc.
Inventor： Sanjeevi Balasubramanian , Shiva Krishna Narra , Anjaneyulu Maganti , Tarik Tabet , Lydi Smaini , Dhruv Khati , Mohit Narang , Tiberiu Muresan
Abstract: In a method of device-to-device communication, efficient power management is provided when a primary device has a low battery level. The primary device can send synchronization signals and discovery messages to secondary devices by looping through a sequence of transmit power values in a sequence of consecutive frames, where the sequence of transmitting values includes a default power value and a reduced power value.
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公开(公告)号：US20200015169A1
公开(公告)日：2020-01-09
申请号：US16169013
申请日：2018-10-24
Applicant: Apple Inc.
Inventor： Anjaneyulu Maganti , Dhruv Khati , Lydi Smaini , Sanjeevi Balasubramanian , Shiva Krishna Narra , Tarik Tabet , Mohit Narang , Tiberiu Muresan
Abstract: This disclosure relates to techniques and devices for implementing an emergency power save mode (EPSM) in a user equipment device (UE). A UE may enter the EPSM in response to user input. While operating in the EPSM, the UE may power down a display of the UE to preserve battery life and may broadcast an emergency beacon in response to user input to a hardware button of the UE, such as a volume button. The UE may supply sound or haptic feedback in response to broadcasting the emergency beacon.
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公开(公告)号：US10517111B2
公开(公告)日：2019-12-24
申请号：US15708746
申请日：2017-09-19
Applicant: APPLE INC.
Inventor： Lei Li , Xiaojun Chen , Vusthla Sunil Reddy , Mohit Narang , Qiyang Wu , Peter M. Agboh
Abstract: Exemplary embodiments include a method performed by a wireless device configured as a slave in a first piconet and configured as a master in a second piconet. The method includes determining whether the wireless device has data to transmit over the second piconet to an other wireless device, determining an availability of a full slot in a first piconet schedule, selecting a data transmission scheme based on the availability of the full slot in the first piconet schedule and transmitting the data via the second piconet to the other wireless device in accordance with the selected data transmission scheme.
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公开(公告)号：US20190342707A1
公开(公告)日：2019-11-07
申请号：US16511756
申请日：2019-07-15
Applicant: Apple Inc.
Inventor： Amit S. Sant , Alejandro J. Marquez , Indranil S. Sen , Mohit Narang , Shang-Te Yang
Abstract: Methods and devices useful in performing precise indoor localization and tracking are provided. By way of example, a method includes locating and tracking, via a first wireless electronic device, a plurality of other wireless electronic devices within an indoor environment. The method also includes performing front-back detection, performing stationary node detection, performing angle of arrival (AoA) error correction, and performing field of view (FOV) filtering. Performing indoor localization and tracking of the plurality of other wireless electronic devices includes providing an indication of a physical location of the plurality of other wireless electronic devices within the indoor environment.
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公开(公告)号：US20190245591A1
公开(公告)日：2019-08-08
申请号：US16267104
申请日：2019-02-04
Applicant: Apple Inc.
Inventor： Hsin-Yuo Liu , Peter M. Agboh , Mohit Narang , Indranil S. Sen , Nicholas M. McDonnell , Chia Yiaw Chong
IPC: H04B7/0413 , H04B1/40 , H04L5/14 , H04B1/00
Abstract: Devices and systems useful in concurrently receiving and transmitting Wi-Fi signals and Bluetooth signals in the same frequency band are provided. By way of example, an electronic device includes a transceiver configured to transmit data and to receive data over channels of a first wireless network and a second wireless network concurrently. The transceiver includes a plurality of filters configured to allow the transceiver to transmit the data and to receive the data in the same frequency band by reducing interference between signals of the first wireless network and the second wireless network.
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Patent Agency Ranking
公开(公告)号：US10356553B2
公开(公告)日：2019-07-16
申请号：US15619171
申请日：2017-06-09
Applicant: Apple Inc.
Inventor： Amit S. Sant , Alejandro J. Marquez , Indranil S. Sen , Mohit Narang , Shang-Te Yang
Abstract: Methods and devices useful in performing precise indoor localization and tracking are provided. By way of example, a method includes locating and tracking, via a first wireless electronic device, a plurality of other wireless electronic devices within an indoor environment. The method also includes performing front-back detection, performing stationary node detection, performing angle of arrival (AoA) error correction, and performing field of view (FOV) filtering. Performing indoor localization and tracking of the plurality of other wireless electronic devices includes providing an indication of a physical location of the plurality of other wireless electronic devices within the indoor environment.
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公开(公告)号：US20190097664A1
公开(公告)日：2019-03-28
申请号：US15716430
申请日：2017-09-26
Applicant: Apple Inc.
Inventor： Xinping ZENG , Mohit Narang , Peter M. Agboh , Vusthla Sunil Reddy
CPC classification number: H04B1/30 , H03D1/00 , H03D1/22 , H03D3/005 , H03D3/008 , H03H7/06 , H04B5/0081 , H04B2001/305
Abstract: A transceiver that allows dynamic high-pass filter (HPF) cut-off frequency adjustment may include a mixer circuit to mix a local oscillator (LO) signal with a receive (RX) signal received from a transmitter to generate a baseband signal. The transceiver may further include a high-pass filter (HPF) having an adjustable cut-off frequency that is used to reduce a DC offset of the baseband signal. A control circuit can dynamically control components of the HPF to set the adjustable cut-off frequency at a first frequency during a first time period and at a second frequency during a second time period.
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公开(公告)号：US20180314349A1
公开(公告)日：2018-11-01
申请号：US15909769
申请日：2018-03-01
Applicant: Apple Inc.
Inventor： Bing Jiang , Blake R. Marshall , Indranil S. Sen , Liquan Tan , Reza Nasiri Mahalati , Yi Jiang , Mohit Narang
IPC: G06F3/0354 , G06F3/041 , H04B5/00 , H02J50/05
Abstract: A wireless power transmission system may include a wireless power transmitting device such as a tablet computer and a wireless power receiving device such as a computer stylus. A wireless power transmitting capacitor electrode may be formed in the tablet computer. A wireless power receiving capacitor electrode may be formed in the computer stylus. The transmitting capacitor electrode may be driven by a drive signal having a frequency of 900 MHz or greater to produce wireless power. The wireless power may be transmitted from the transmitting capacitor electrode to the receiving capacitor electrode on the stylus via near field capacitive coupling. The transmitting and receiving capacitor electrodes may each include conductive traces on dielectric substrates. The conductive traces may follow meandering paths to maximize the possible capacitive coupling efficiency between the capacitor electrodes and thus the end-to-end charging efficiency of the wireless power transmission system.
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公开(公告)号：US20180146435A1
公开(公告)日：2018-05-24
申请号：US15874678
申请日：2018-01-18
Applicant: Apple Inc.
Inventor： Mohit Narang , Peter M. Agboh , Qiyang Wu , Ruben Caballero , Vusthla Sunil Reddy , Xi Yang
CPC classification number: H04W52/20 , H04L43/0847 , H04L43/16 , H04W4/80 , H04W52/245 , H04W52/246 , H04W52/367
Abstract: A host device is configured to increase the power output by an internal amplifier of its wireless chipset in response to requests from a remote device. Once the internal amplifier has reached its maximum power, further requests for power increases from the remove device do not similarly lead to automatic power increases being delivered by a external amplifier of the host device. Rather, the host device determines the strength of the link between it and the remote device. If the signal strength is too low, it is an indication that the signal power output by the remote device may not be sufficient to maintain the link and that any further increases in signal power by the host device will have little or no effect on the link. However, if the signal strength from the remote device is sufficient, the host device determines an error rate between it and the remote device. If the error rate is sufficiently low to maintain the link, then the host device will not further increase its signal output power. However, if the error rate is too high, the host device will turn on and/or increase power from its external amplifier to boost the power of its output signal and, thus, improve the error rate between it and the remote device.
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公开(公告)号：US09913223B2
公开(公告)日：2018-03-06
申请号：US14746133
申请日：2015-06-22
Applicant: APPLE INC.
Inventor： Mohit Narang , Peter M. Agboh , Qiyang Wu , Ruben Caballero , Vusthla Sunil Reddy , Xi Yang
CPC classification number: H04W52/20 , H04L43/0847 , H04L43/16 , H04W4/80 , H04W52/245 , H04W52/246 , H04W52/367
Abstract: A host device is configured to increase the power output by an internal amplifier of its wireless chipset in response to requests from a remote device coupled via a data link. Once the internal amplifier has reached its maximum power, the host device may determine the strength of the data link between it and the remote device. If the strength is low, it is an indication that further increases in signal power by the host device may have little effect on the link. If the signal strength from the remote device is sufficient, the host device determines an error rate. If the error rate is sufficiently low, the host device will not increase its signal output power. However, if the error rate is too high, the host device may increase power from its external amplifier to improve the error rate of the data link.
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