Patents by Inventor Indranil S. Sen
Indranil S. Sen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200274583Abstract: 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.Type: ApplicationFiled: May 14, 2020Publication date: August 27, 2020Inventors: Hsin-Yuo Liu, Peter M. Agboh, Mohit Narang, Indranil S. Sen, Nicholas M. McDonnell, Chia Yiaw Chong
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Patent number: 10756797Abstract: A user equipment (UE) including at least two antennas configured to allow the UE to communicate via a first connection. The UE selects a connection performance parameter associated with the first connection, generates historical measurement information for the at least two antennas based on the connection performance parameter, for the plurality of antennas, the historical measurement information indicating an expected performance associated with using a selected one of the at least two antennas for a packet transmission and selects, based at least on the historical measurement information, one of the at least two antennas for use in transmitting the packet.Type: GrantFiled: September 12, 2018Date of Patent: August 25, 2020Assignee: Apple Inc.Inventors: Medini Guruprasad, Alejandro J. Marquez, Shang-Te Yang, Mohit Narang, Indranil S. Sen
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Patent number: 10739871Abstract: 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.Type: GrantFiled: March 1, 2018Date of Patent: August 11, 2020Assignee: Apple Inc.Inventors: Bing Jiang, Blake R. Marshall, Indranil S. Sen, Liquan Tan, Reza Nasiri Mahalati, Yi Jiang, Mohit Narang
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Patent number: 10720971Abstract: 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.Type: GrantFiled: February 4, 2019Date of Patent: July 21, 2020Assignee: APPLE INC.Inventors: Hsin-Yuo Liu, Peter M. Agboh, Mohit Narang, Indranil S. Sen, Nicholas M. McDonnell, Chia Yiaw Chong
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Patent number: 10716073Abstract: In an example method, a mobile device connects a voice call for a user. The voice call causes one or more radio frequency transmitters of the mobile device to transmit radio waves at a first power level. Motion data describing movement of the mobile device is obtained, and the orientation of the mobile device is determined based on the motion data. A determination whether the mobile device is on the user's body or on an inanimate object is made based on the orientation of the mobile device over the period of time. The transmit power level is adjusted based on the determination.Type: GrantFiled: August 26, 2016Date of Patent: July 14, 2020Assignee: Apple Inc.Inventors: Gunes Dervisoglu, Indranil S. Sen, Umamahesh Srinivas, Digvijay A. Jadhav, Sunny Kai Pang Chow, Hung A. Pham, Anil K. Kandangath, Xiaoyuan Tu, Jonathan C. King
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Patent number: 10714983Abstract: A wireless power system may use a wireless power transmitting device to transmit wireless power to a wireless power receiving device. The wireless power transmitting device may have microwave antennas that extend along an axis in a staggered arrangement. In the staggered arrangement, the microwave antennas are positioned on alternating sides of the axis. Each microwave antenna is elongated along a dimension that is perpendicular to the axis. Multiple antennas may overlap a wireless power receiving antenna in the wireless power receiving device. Control circuitry may use oscillator and amplifier circuitry to provide antennas that have been overlapped by the wireless power receiving antenna with drive signals. The drive signals may be adjusted based on feedback from the wireless power receiving device to enhance power transmission efficiency. The system may have a wireless power transmitting device with inductive wireless power transmitting coils.Type: GrantFiled: February 22, 2018Date of Patent: July 14, 2020Assignee: Apple Inc.Inventors: Bing Jiang, Martin Schauer, Indranil S. Sen, Jouya Jadidian, Mark D. Neumann, Mohit Narang, Vaneet Pathak, Yi Jiang
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Patent number: 10651670Abstract: An electronic device may transfer power wirelessly to an external device. The electronic device may include a housing having a cavity. A cover layer may be formed over the cavity. An array of antennas may be formed within the cavity. Antennas in the array may transfer wireless charging signals to the external device through the cover layer to charge the external device while the external device is in contact with the cover layer. Impedance detection circuitry may gather impedance matching information from each antenna in the array. Control circuitry may select an antenna having a best impedance match with the external device for transmitting the wireless charging signals. One or more antennas in the array may form a block filter for the selected antenna. Multiple near-field coupled antennas in the array may be selected for transmitting the charging signals to focus the charging signals on the external device.Type: GrantFiled: April 19, 2017Date of Patent: May 12, 2020Assignee: Apple Inc.Inventors: Bing Jiang, Indranil S. Sen, Mohit Narang, Mun Soo Bae
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Patent number: 10644744Abstract: Methods and apparatuses are presented to reduce multiuser interference resulting from two or more overlapping ultra wideband (UWB) transmissions by randomizing the start time of packets and/or bursts within the packets. A random offset time may be generated for a packet, and transmission of the packet may be arbitrarily delayed by that random offset time, relative to an earlier time at which the packet is prepared for transmission. A random offset time may be generated for a pulse burst within a symbol of a packet, and transmission of the burst may be delayed by that random offset time, relative to a nominal transmission window within the symbol. The burst may therefore occupy a portion of a guard period following the nominal transmission window. Either procedure, or both procedures, may be used to reduce multiuser interference between two concurrently transmitted packets by randomizing overlap occurring between the bursts.Type: GrantFiled: August 21, 2018Date of Patent: May 5, 2020Assignee: Apple Inc.Inventors: Xiaoming Yu, Alejandro J. Marquez, Indranil S. Sen, Peter M. Agboh, Shang-Te Yang, Vusthla Sunil Reddy
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Publication number: 20200107274Abstract: Multi-radio wireless network devices are capable of transmitting and/or receiving data from multiple radiofrequency (RF) networks at different bands. Total transmission power limitations may be in place due to, for example, safety reasons. As a result, active management of transmission power may be performed during simultaneous transmission in different bands and/or networks. In some embodiments, the management may take place on group-by-group basis and a network-by-network basis. Antennas may be grouped based on their relative positions and impact on radiation emitted by the devices.Type: ApplicationFiled: April 11, 2019Publication date: April 2, 2020Inventors: Digvijay Arjunrao Jadhav, Indranil S. Sen, Jonathan C. King, Mohit Narang, Prathyusha Sangepu, Qiong Wu, Shrenik Milapchand, Vijay Gadde, Yu Chen
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Publication number: 20200092191Abstract: Methods for a data-less ranging procedure may include initiating a ranging procedure via a polling message transmitted at a first time and receiving response messages at second and third times. The time intervals between the first and second time and the second and third times may be pre-defined. A time of flight may be calculated based on the pre-defined time intervals and the first, second, and third times.Type: ApplicationFiled: September 18, 2018Publication date: March 19, 2020Inventors: Alejandro J. Marquez, Shang-Te Yang, Mohit Narang, Indranil S. Sen, Joachim S. Hammerschmidt, Hung Kwan Oscar Au, Dineshan Poopalaratnam
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Publication number: 20200067565Abstract: Methods and apparatuses are presented to reduce multiuser interference resulting from two or more overlapping ultra wideband (UWB) transmissions by randomizing the start time of packets and/or bursts within the packets. A random offset time may be generated for a packet, and transmission of the packet may be arbitrarily delayed by that random offset time, relative to an earlier time at which the packet is prepared for transmission. A random offset time may be generated for a pulse burst within a symbol of a packet, and transmission of the burst may be delayed by that random offset time, relative to a nominal transmission window within the symbol. The burst may therefore occupy a portion of a guard period following the nominal transmission window. Either procedure, or both procedures, may be used to reduce multiuser interference between two concurrently transmitted packets by randomizing overlap occurring between the bursts.Type: ApplicationFiled: August 21, 2018Publication date: February 27, 2020Inventors: Xiaoming Yu, Alejandro J. Marquez, Indranil S. Sen, Peter M. Agboh, Shang-Te Yang, Vusthla Sunil Reddy
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Publication number: 20200004312Abstract: A technique for dynamically adjusting power use of an input/output (I/O) interface of an electronic device is provided. The electronic device includes an input/output (I/O) interface that facilitates electronic communications with a receiving electronic device, at a particular transmission rate that is dynamically changeable by the electronic device. Transmission power and transmission rate adjustment circuitry determines whether a step-down in a transmission power used for signal transmission at the particular transmission rate is desirable. When desirable, the transmission power is dynamically adjusted down one step, such that less power is used by the I/O interface during the electronic communications.Type: ApplicationFiled: September 12, 2019Publication date: January 2, 2020Inventors: Diego C. Hernandez, Harneet Singh Oberoi, Indranil S. Sen, Kevin C. Camilleri, Ragburam C. Kamath, Vusthla Sunil Reddy
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Publication number: 20190379435Abstract: Systems, methods, and devices for grouping client devices based on sensor data in an assisted wireless communication system are provided. Sensor data may include device mobility, device type, and device application data usage, among other characteristics. An assisted wireless communication system may include client devices sending data to an access point. The clients may send conventional protocol data over a channel and, concurrently, send sensor data over an alternative channel. In some cases, client devices may exchange their protocol data, modify their own protocol data based on the exchanged data, and send the modified protocol data to the access point. This may allow the clients to adjust their grouping.Type: ApplicationFiled: June 8, 2018Publication date: December 12, 2019Inventors: Raghuram C. Kamath, Diego C. Hernandez, Harneet Singh Oberoi, Indranil S. Sen
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Patent number: 10477741Abstract: An inductive power transmission system electromagnetic field shielding apparatus includes an enclosure. The enclosure is configured to surround an electronic device and an inductive power transmitter that inductively transmits power to the electronic device. A communication window or high pass filter is formed in the enclosure. The communication window may include an arrangement of one or more conductive materials defining one or more apertures. The enclosure and the communication window block passage of magnetic flux generated by the inductive power transmitter. The communication window allows passage of communication transmissions associated with the electronic device.Type: GrantFiled: February 9, 2016Date of Patent: November 12, 2019Assignee: APPLE INC.Inventors: Mun Soo Bae, Bing Jiang, Haejoon Jung, Indranil S. Sen, Mohit Narang, Ruben Caballero
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Publication number: 20190342707Abstract: 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.Type: ApplicationFiled: July 15, 2019Publication date: November 7, 2019Inventors: Amit S. Sant, Alejandro J. Marquez, Indranil S. Sen, Mohit Narang, Shang-Te Yang
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Publication number: 20190297457Abstract: Methods and devices are provided for allowing a mobile device (e.g., a key fob or a consumer electronic device, such as a mobile phone, watch, or other wearable device) to interact with a vehicle such that a location of the mobile device can be determined by the vehicle, thereby enabling certain functionality of the vehicle. A device may include both RF antenna(s) and magnetic antenna(s) for determining a location of a mobile device relative to the vehicle. Such a hybrid approach can provide various advantages. Existing magnetic coils on a mobile device (e.g., for charging or communication) may be re-used for distance measurements that are supplemented by the RF measurements. Any device antenna may provide measurements to a machine learning model that determines a region in which the mobile device resides, based on training measurements in the regions.Type: ApplicationFiled: April 1, 2019Publication date: September 26, 2019Applicant: Apple Inc.Inventors: Brent M. Ledvina, Robert W. Brumley, Robert William Mayor, William J. Bencze, Alejandro J. Marquez, Shang-Te Yang, Xu Chen, Indranil S. Sen, Mohit Narang
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Patent number: 10416747Abstract: A technique for dynamically adjusting power use of an input/output (I/O) interface of an electronic device is provided. The electronic device includes an input/output (I/O) interface that facilitates electronic communications with a receiving electronic device, at a particular transmission rate that is dynamically changeable by the electronic device. Transmission power and transmission rate adjustment circuitry determines whether a step-down in a transmission power used for signal transmission at the particular transmission rate is desirable. When desirable, the transmission power is dynamically adjusted down one step, such that less power is used by the I/O interface during the electronic communications.Type: GrantFiled: May 23, 2016Date of Patent: September 17, 2019Assignee: Apple Inc.Inventors: Diego C. Hernandez, Harneet Singh Oberoi, Indranil S. Sen, Kevin C. Camilleri, Raghuram C. Kamath, Vusthla Sunil Reddy
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Patent number: 10390313Abstract: 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.Type: GrantFiled: February 3, 2016Date of Patent: August 20, 2019Assignee: Apple Inc.Inventors: Mohit Narang, Peter Agboh, Vusthla Sunil Reddy, Chia Yiaw Chong, Indranil S. Sen, Ruben Caballero, Manjit S. Walia, Xi Yang
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Publication number: 20190245591Abstract: 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.Type: ApplicationFiled: February 4, 2019Publication date: August 8, 2019Inventors: Hsin-Yuo Liu, Peter M. Agboh, Mohit Narang, Indranil S. Sen, Nicholas M. McDonnell, Chia Yiaw Chong
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Patent number: 10356553Abstract: 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.Type: GrantFiled: June 9, 2017Date of Patent: July 16, 2019Assignee: APPLE INC.Inventors: Amit S. Sant, Alejandro J. Marquez, Indranil S. Sen, Mohit Narang, Shang-Te Yang