Patents by Inventor Udara Fernando

Udara Fernando 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).

  • Publication number: 20250126574
    Abstract: Some disclosed devices include an inertial sensor system, a proximity sensor system, an antenna system configured to transmit and receive radio signals and a control system. The control system may be configured for receiving inertial sensor data from the inertial sensor system and controlling the proximity sensor system and/or the antenna system based, at least in part, on the inertial sensor data. In some examples, the control system may be configured for controlling the proximity sensor system and/or the antenna system based, at least in part, on whether the inertial sensor data indicates that the device is being held, is being carried or is on a person's body (e.g., is in the person's pocket).
    Type: Application
    Filed: December 23, 2024
    Publication date: April 17, 2025
    Inventors: Roberto RIMINI, Udara FERNANDO
  • Publication number: 20250096459
    Abstract: Certain aspects provide a method for wireless communication by a device. The method generally includes: transmitting a transmit signal via a first antenna; receiving a first receive signal via a second antenna and a second receive signal via a third antenna, the first receive signal and the second receive signal being associated with the transmit signal; generating a first phase-shifted signal via a first phase shifter based on the first receive signal, and a second phase-shifted signal via a second phase shifter based on the second receive signal; and combining the first phase-shifted signal and the second phase-shifted signal to generate a combined receive signal, wherein a phase-shift setting of at least one of the first phase shifter or the second phase shifter is controlled based on at least one of a mutual coupling component or a phase noise of the combined receive signal.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 20, 2025
    Inventors: Roberto RIMINI, Udara FERNANDO, Chinmaya MISHRA, Chirag Dipak PATEL, Ahmad Bassil ZOUBI
  • Publication number: 20250093486
    Abstract: Certain aspects provide a method for object detection. The method generally includes: transmitting, via a first antenna, a transmit signal generated via a first transmit chain, the transmit signal being generated based on a mixer output signal; receiving a first receive signal via a first receive chain coupled to a second antenna, the first receive signal being associated with the transmit signal; generating, via a first phase shifter, a first phase-shifted signal based on an adjustment signal received via a signal path coupled to the first transmit chain, the adjustment signal being generated based on the mixer output signal; combining the first phase-shifted signal and the first receive signal to generated a combined receive signal, wherein a phase-shift setting of the first phase shifter is controlled based on at least one of a mutual coupling component or a phase noise of the combined receive signal.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 20, 2025
    Inventors: Chinmaya MISHRA, Chirag Dipak PATEL, Roberto RIMINI, Udara FERNANDO, Ahmad Bassil ZOUBI
  • Patent number: 12213080
    Abstract: In certain aspects, a method implemented in a wireless device includes determining a specific absorption rate (SAR) distribution for a first wireless communication technology, determining a power density (PD) distribution for a second wireless communication technology, and combining the SAR distribution and the PD distribution to generate a combined RF exposure distribution. The method also includes determining at least one first maximum allowable power level and at least one second maximum allowable power level for a future time slot based on the combined RF exposure distribution, setting at least one transmission power limit for a first transmitter in the future time slot based on the at least one first maximum allowable power level, and setting at least one transmission power limit for a second transmitter in the future time slot based on the at least one second maximum allowable power level.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: January 28, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Jagadish Nadakuduti, Lin Lu, Paul Guckian, Mingming Cai, Junsheng Han, Udara Fernando, Raghu Challa
  • Patent number: 12207204
    Abstract: Some disclosed devices include an inertial sensor system, a proximity sensor system, an antenna system configured to transmit and receive radio signals and a control system. The control system may be configured for receiving inertial sensor data from the inertial sensor system and controlling the proximity sensor system and/or the antenna system based, at least in part, on the inertial sensor data. In some examples, the control system may be configured for controlling the proximity sensor system and/or the antenna system based, at least in part, on whether the inertial sensor data indicates that the device is being held, is being carried or is on a person's body (e.g., is in the person's pocket).
    Type: Grant
    Filed: September 14, 2023
    Date of Patent: January 21, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Roberto Rimini, Udara Fernando
  • Patent number: 12206167
    Abstract: Aspects described herein include methods and devices for radar integration with a mmW communication module. In some aspects, an apparatus is provided that includes a millimeter wave (mmW) printed circuit board (PCB), with first and second mmW elements, and a radar antenna. The first mmW element is coupled to a first side of the mmW PCB, where the first mmW element is configured for wireless mmW communications at frequencies above approximately 24 gigahertz (GHz). A second mmW element coupled to the first side of the mmW PCB, where the second mmW element is positioned adjacent to the first mmW element and is separated from the first mmW element by a gap spacing. A radar antenna is disposed in the mmW PCB and aligned with the gap spacing between the first mmW element and the second mmW element.
    Type: Grant
    Filed: September 25, 2021
    Date of Patent: January 21, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Jorge Fabrega Sanchez, Mohammad Ali Tassoudji, Udara Fernando
  • Publication number: 20240426977
    Abstract: An apparatus is disclosed for jammer detection. In example aspects, the apparatus includes a wireless transceiver configured to be connected to one or more antennas. The wireless transceiver is configured to translate a received signal from a first frequency to a second frequency using a reference signal to produce a translated received signal, with the reference signal including at least one frequency having an association with one or more targeted frequencies of a potential jamming signal. The wireless transceiver is also configured to convert at least a version of the translated received signal in the analog domain into a converted received signal in the digital domain. The wireless transceiver is further configured to detect that the converted received signal comprises a jamming signal based on the association and using at least one threshold and determine a jamming frequency of the jamming signal based on the frequency of the reference signal.
    Type: Application
    Filed: June 23, 2023
    Publication date: December 26, 2024
    Inventors: Udara Fernando, Ajay Devadatta Kanetkar, Shrenik Patel, Kyle Alexander Douglas
  • Patent number: 12123936
    Abstract: An apparatus is disclosed for proximity detection using multiple power levels. In an example aspect, the apparatus includes a first antenna, a second antenna, and a wireless transceiver coupled to the first antenna and the second antenna. The wireless transceiver is configured to transmit multiple transmit signals at multiple power levels via the first antenna. The wireless transceiver is also configured to receive multiple receive signals via the second antenna. At least one receive signal of the multiple receive signals includes a portion of at least one transmit signal of the multiple transmit signals that is reflected by an object. The wireless transceiver is additionally configured to adjust a transmission parameter based on the at least one receive signal. The transmission parameter varies according to a range to the object.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: October 22, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Mustafa Emin Sahin, Udara Fernando, Roberto Rimini, Raghu Challa, Seunghwan Kim
  • Patent number: 12114270
    Abstract: Methods and apparatus for distinguishing between an antenna of a user equipment (UE) being blocked by a cover (e.g., a protective rubber or plastic case) or by human tissue (e.g., a finger or palm). The transmission power of uplink (UL) signals may be adjusted accordingly, with relatively higher transmission power for open space or a cover and relatively lower transmission power for human tissue. One example method for wireless communications by a UE generally includes transmitting a first signal from the UE, receiving a plurality of signals at the UE based on the transmitted first signal, determining values for at least two different types of parameters based on the received plurality of signals, determining an environmental scenario for the UE based on the values for the at least two different types of parameters, and transmitting a second signal using a transmission power based on the determined environmental scenario.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: October 8, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Seunghwan Kim, Udara Fernando, Eyosias Yoseph Imana, Robert Gilmore
  • Patent number: 12114180
    Abstract: A method for wireless communication performed by a head-mounted user equipment (UE), the method includes determining a first spatial relationship between an eye of a human user of the head-mounted UE and physical transmission and reception ports of the head-mounted UE; based on the first spatial relationship, determining a second spatial relationship between a plurality of radio frequency (RF) beam directions of the head-mounted UE and the eye of the human user; selecting a first RF beam direction from among the plurality of RF beam directions based at least in part on the second spatial relationship with respect to the first RF beam direction; and transmitting or receiving RF radiation using a first RF beam conforming to the first RF beam direction.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: October 8, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Danlu Zhang, Brian Momeyer, Brian Clarke Banister, Udara Fernando, Eyosias Yoseph Imana, Raghu Narayan Challa, Jiaying Pan, Xiaoxin Zhang, Bala Ramasamy
  • Publication number: 20240248543
    Abstract: In some aspects, a device may detect an occurrence of an event associated with the device. The device may transmit a transmission signal responsive to detecting the occurrence of the event. The device may receive a reception signal that is a reflection of the transmission signal from an object. The device may determine, using at least the reception signal, a characteristic of a movement of the object. The device may determine that the characteristic of the movement is indicative of a gesture designated for controlling a function of the device. The device may control the function of the device responsive to determining that the characteristic of the movement is indicative of the gesture. Numerous other aspects are described.
    Type: Application
    Filed: January 24, 2023
    Publication date: July 25, 2024
    Inventors: Roberto RIMINI, Anant GUPTA, Udara FERNANDO
  • Patent number: 12021796
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In certain configurations, the apparatus may be a user equipment (UE). The apparatus may receive configuration information for UL and DL transmissions from another device such as a base station. The apparatus may determine a maximum duty cycle of the UL transmission based on the configuration information. Based on the determined UL maximum duty cycle, the apparatus may determine a transmit power limit for the UL transmission. In one aspect, the apparatus may determine the UL transmit power limit by dividing the power corresponding to a maximum permissible exposure (MPE) limit by the determined maximum UL duty cycle. The apparatus may leverage the forward knowledge of the UL duty cycle to transmit at a power level that complies with the MPE limit while avoiding the poor uplink range associated with static power back-off.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: June 25, 2024
    Assignee: QUALCOMM INCORPORATED
    Inventors: Junsheng Han, Udara Fernando, Lin Lu, John Forrester, Mingming Cai, Tao Luo, Raghu Narayan Challa
  • Publication number: 20240172126
    Abstract: In certain aspects, a method implemented in a wireless device includes determining a specific absorption rate (SAR) distribution for a first wireless communication technology, determining a power density (PD) distribution for a second wireless communication technology, and combining the SAR distribution and the PD distribution to generate a combined RF exposure distribution. The method also includes determining at least one first maximum allowable power level and at least one second maximum allowable power level for a future time slot based on the combined RF exposure distribution, setting at least one transmission power limit for a first transmitter in the future time slot based on the at least one first maximum allowable power level, and setting at least one transmission power limit for a second transmitter in the future time slot based on the at least one second maximum allowable power level.
    Type: Application
    Filed: October 16, 2023
    Publication date: May 23, 2024
    Inventors: Jagadish NADAKUDUTI, Lin LU, Paul GUCKIAN, Mingming CAI, Junsheng HAN, Udara FERNANDO, Raghu CHALLA
  • Publication number: 20240106482
    Abstract: Certain aspects of the present disclosure provide techniques for operating a wireless device pursuant to radio frequency (RF) exposure compliance. A method that may be performed by a wireless device includes switching sensing circuitry to a first mode in response to one or more first criteria being satisfied; switching the sensing circuitry to a second mode in response to one or more second criteria being satisfied; and transmitting a signal at a transmit power determined based at least in part on a radio frequency (RF) exposure limit, and if the sensing circuitry is operating in the second mode, on one or more measurements associated with the sensing circuitry.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 28, 2024
    Inventors: John FORRESTER, Udara FERNANDO, Farhad MESHKATI, Lin LU, Jagadish NADAKUDUTI, Scott HOOVER, Roberto RIMINI, Justin MCGLOIN, Arvind Vardarajan SANTHANAM, Michael Lee MCCLOUD
  • Patent number: 11901973
    Abstract: Certain aspects of the present disclosure provide object detection based on perturbations in a channel model over time. An example portable apparatus includes a primary antenna, a secondary antenna, a transmit path, a radio frequency (RF) coupler, and a receive path. The transmit path is coupled to the primary antenna and configured to output a transmit signal for transmission via the primary antenna. The RF coupler is coupled to the secondary antenna. The receive path has an input selectively coupled between the transmit path and the RF coupler such that when the receive path is coupled to the RF coupler and configured to operate concurrently with the transmit path, the receive path is configured to receive a reflected portion of the transmit signal from an object located in proximity to the portable apparatus.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Sanjay Avasarala, Ryan Scott Castro Spring, Udara Fernando
  • Patent number: 11870478
    Abstract: An apparatus including a housing; sensors configured to sense one or more locations upon which a user is gripping the housing; sensors including antenna modules configured to transmit a signal based on the one or more locations upon which the user is gripping the housing. Another aspect relates to an apparatus including a housing; a set of antenna modules situated proximate at different surface locations along the housing; and a controller configured to operate the set of antenna modules to determine at least one or more electromagnetic leakage coupling between at least one pair of antenna modules of the set. In this aspect, the controller may be configured to select one or more of the set of antenna modules for transmitting a signal based on the one or more electromagnetic leakage coupling associated with one or more of the different locations where a user grips the housing, respectively.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: January 9, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Udara Fernando, Lin Lu
  • Publication number: 20240007965
    Abstract: Some disclosed devices include an inertial sensor system, a proximity sensor system, an antenna system configured to transmit and receive radio signals and a control system. The control system may be configured for receiving inertial sensor data from the inertial sensor system and controlling the proximity sensor system and/or the antenna system based, at least in part, on the inertial sensor data. In some examples, the control system may be configured for controlling the proximity sensor system and/or the antenna system based, at least in part, on whether the inertial sensor data indicates that the device is being held, is being carried or is on a person's body (e.g., is in the person's pocket).
    Type: Application
    Filed: September 14, 2023
    Publication date: January 4, 2024
    Inventors: Roberto RIMINI, Udara FERNANDO
  • Patent number: 11825423
    Abstract: Some disclosed devices include an inertial sensor system, a proximity sensor system, an antenna system configured to transmit and receive radio signals and a control system. The control system may be configured for receiving inertial sensor data from the inertial sensor system and controlling the proximity sensor system and/or the antenna system based, at least in part, on the inertial sensor data. In some examples, the control system may be configured for controlling the proximity sensor system and/or the antenna system based, at least in part, on whether the inertial sensor data indicates that the device is being held, is being carried or is on a person's body (e.g., is in the person's pocket).
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: November 21, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Roberto Rimini, Udara Fernando
  • Patent number: 11792740
    Abstract: In certain aspects, a method implemented in a wireless device includes determining a specific absorption rate (SAR) distribution for a first wireless communication technology, determining a power density (PD) distribution for a second wireless communication technology, and combining the SAR distribution and the PD distribution to generate a combined RF exposure distribution. The method also includes determining at least one first maximum allowable power level and at least one second maximum allowable power level for a future time slot based on the combined RF exposure distribution, setting at least one transmission power limit for a first transmitter in the future time slot based on the at least one first maximum allowable power level, and setting at least one transmission power limit for a second transmitter in the future time slot based on the at least one second maximum allowable power level.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: October 17, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Jagadish Nadakuduti, Lin Lu, Paul Guckian, Mingming Cai, Junsheng Han, Udara Fernando, Raghu Challa
  • Patent number: 11784674
    Abstract: Aspects relate to a calibration of an antenna array module of a wireless communication device in open space. The antenna array module may be used as a proximity sensor to detect an object's proximity relative to the antenna array module. Aspects include displaying an open space calibration instruction on a display of the wireless communication device, transmitting a proximity test signal from the antenna array module, measuring a value of a first signal received at the antenna array module in response to transmitting the proximity test signal, and storing the value of the first signal as an open space calibration value of the antenna array module. The first signal may be measured at cross-polarized antennas of the antenna array module. The value of the first signal may be representative of perturbations of the proximity test signal at the cross-polarized antennas.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: October 10, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Udara Fernando, Brian Clarke Banister, Eyosias Yoseph Imana