Patents by Inventor Rahul Apte

Rahul Apte 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).

  • Patent number: 11342796
    Abstract: Methods, systems, and techniques for safely controlling wireless charging in the presence of a foreign object are presented. A method includes determining a power difference between a power transmitted by a wireless charger and a power received by an electronic device, determining a level of misalignment of the electronic device with respect to the wireless charger; estimating an amount of power difference due to the level of misalignment of the electronic device with respect to the wireless charger, adjusting a power difference threshold for the wireless charger based on the estimated amount of power difference, and controlling operation of the wireless charger based on the power difference and the adjusted power difference threshold.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: May 24, 2022
    Assignee: Google LLC
    Inventors: Qi Tian, Veera Venkata Siva Nagesh Polu, Liang Jia, Liyu Yang, Jae-won Hwang, Rahul Apte, Srikanth Lakshmikanthan, Srenik Suresh Mehta, Robert Thomas Shone
  • Patent number: 11171522
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for improving wireless charging. In some implementations, an electronic device determines a power demand of the electronic device. The electronic device includes a wireless power receiver including a wireless power receiving coil configured to receive power through inductive coupling with a wireless charge. The electronic device determines an operating voltage or operating frequency for the wireless charger based on the power demand of the electronic device. The electronic device sends, to the wireless charger, data indicating the operating voltage or operating frequency for the wireless charger.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: November 9, 2021
    Assignee: Google LLC
    Inventors: Liang Jia, Qi Tian, Liyu Yang, Veera Venkata Siva Nagesh Polu, Srikanth Lakshmikanthan, Rahul Apte, Jae-won Hwang, Srenik Suresh Mehta
  • Publication number: 20200343777
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for improving wireless charging. In some implementations, an electronic device determines a power demand of the electronic device. The electronic device includes a wireless power receiver including a wireless power receiving coil configured to receive power through inductive coupling with a wireless charge. The electronic device determines an operating voltage or operating frequency for the wireless charger based on the power demand of the electronic device. The electronic device sends, to the wireless charger, data indicating the operating voltage or operating frequency for the wireless charger.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 29, 2020
    Inventors: Liang Jia, Qi Tian, Liyu Yang, Veera Venkata Siva Nagesh Polu, Srikanth Lakshmikanthan, Rahul Apte, Jae-won Hwang, Srenik Suresh Mehta
  • Publication number: 20200083754
    Abstract: Methods, systems, and techniques for safely controlling wireless charging in the presence of a foreign object are presented. A method includes determining a power difference between a power transmitted by a wireless charger and a power received by an electronic device, determining a level of misalignment of the electronic device with respect to the wireless charger; estimating an amount of power difference due to the level of misalignment of the electronic device with respect to the wireless charger, adjusting a power difference threshold for the wireless charger based on the estimated amount of power difference, and controlling operation of the wireless charger based on the power difference and the adjusted power difference threshold.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 12, 2020
    Inventors: Qi Tian, Veera Venkata Siva Nagesh Polu, Liang Jia, Liyu Yang, Jae-won Hwang, Rahul Apte, Srikanth Lakshmikanthan, Srenik Suresh Mehta, Robert Thomas Shone
  • Patent number: 8437721
    Abstract: A frequency synthesizer within an FM receiver employs a Phase-Locked Loop (PLL) to generate a Local Oscillator (LO) signal. The LO signal is supplied to a mixer. The FM receiver also includes jammer detection functionality. If no jammer is detected, then the loop bandwidth of the PLL is set to have a relatively high value, thereby favoring suppression of in-band residual FM. If a jammer is detected, then the loop bandwidth of the PLL is set to have a relatively low value, thereby favoring suppression of out-of-band SSB phase noise. By adaptively changing loop bandwidth depending on whether a jammer is detected, performance requirements on sub-circuits within the PLL can be relaxed while still satisfying in-band residual FM and out-of-band SSB phase noise requirements. By allowing the VCO of the PLL to generate more phase noise due to the adaptive changing of loop bandwidth, VCO power consumption can be reduced.
    Type: Grant
    Filed: April 26, 2009
    Date of Patent: May 7, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Zeng, Tzu-wang Pan, I-Hsiang Lin, Jeremy Dunworth, Pushp Trikha, Rahul Apte
  • Patent number: 8254849
    Abstract: An FM radio with a wide frequency range operates in a cell phone without interfering with the VCO of the RF transceiver. The FM transceiver generates a VCO signal whose frequency varies by less than ±7% from the midpoint of a narrow first range. A synthesizer signal is generated by dividing the VCO frequency by a first divisor such that the synthesizer frequency varies over a lower frequency second range. The VCO frequency is also divided by a second divisor such that the synthesizer frequency varies over a third range. The upper limit of the second range falls at the lower limit of the third range. The lower limit of the second range is 85.5 MHz and the upper limit of the third range is 108.0 MHz. By also using a third divisor, a synthesizer signal with a range of 76-108 MHz is generated from the narrow first frequency range.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: August 28, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Tzu-wang Pan, Yi Zeng, I-Hsiang Lin, Pushp K. Trikha, Jeremy D. Dunworth, Rahul Apte
  • Publication number: 20100273442
    Abstract: A frequency synthesizer within an FM receiver employs a Phase-Locked Loop (PLL) to generate a Local Oscillator (LO) signal. The LO signal is supplied to a mixer. The FM receiver also includes jammer detection functionality. If no jammer is detected, then the loop bandwidth of the PLL is set to have a relatively high value, thereby favoring suppression of in-band residual FM. If a jammer is detected, then the loop bandwidth of the PLL is set to have a relatively low value, thereby favoring suppression of out-of-band SSB phase noise. By adaptively changing loop bandwidth depending on whether a jammer is detected, performance requirements on sub-circuits within the PLL can be relaxed while still satisfying in-band residual FM and out-of-band SSB phase noise requirements. By allowing the VCO of the PLL to generate more phase noise due to the adaptive changing of loop bandwidth, VCO power consumption can be reduced.
    Type: Application
    Filed: April 26, 2009
    Publication date: October 28, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Yi Zeng, Tzu-wang Pan, I-Hsiang Lin, Jeremy Dunworth, Pushp Trikha, Rahul Apte
  • Publication number: 20100255802
    Abstract: An FM radio with a wide frequency range operates in a cell phone without interfering with the VCO of the RF transceiver. The FM transceiver generates a VCO signal whose frequency varies by less than ±7% from the midpoint of a narrow first range. A synthesizer signal is generated by dividing the VCO frequency by a first divisor such that the synthesizer frequency varies over a lower frequency second range. The VCO frequency is also divided by a second divisor such that the synthesizer frequency varies over a third range. The upper limit of the second range falls at the lower limit of the third range. The lower limit of the second range is 85.5 MHz and the upper limit of the third range is 108.0 MHz. By also using a third divisor, a synthesizer signal with a range of 76-108 MHz is generated from the narrow first frequency range.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 7, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Tzu-wang Pan, Yi Zeng, I-Hsiang Lin, Pushp K. Trikha, Jeremy D. Dunworth, Rahul Apte