Patents by Inventor Ram Kanumalli

Ram Kanumalli 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: 12003244
    Abstract: Embodiments relate to updating spur cancellation at a victim integrated circuit (IC) in accordance with dynamic changes in the operating frequencies of an aggressor IC. The aggressor IC changes its operating frequencies at an update time that is determined in advance. The update time and the changes to the operating frequencies are shared with the victim IC. The victim IC dynamically updates the relationships between frequencies of local clock signals for the victim IC and the aggressor IC. The victim IC generates a spur cancellation parameter based on the updated relationships of local clock frequencies, the update time and the changes to the operating frequencies of the aggressor IC, and configures a spur cancellation circuit. In this way, the victim IC may perform effective spur cancellation despite changes in the operating frequencies of the aggressor IC and deviation of the local clock frequencies.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: June 4, 2024
    Assignee: APPLE INC.
    Inventors: Helena Deirdre O'Shea, Dmitry Cherniavsky, Tim Schoenauer, Ali Moaz, Rahmi Hezar, Ram Kanumalli
  • Patent number: 11902899
    Abstract: A receiver includes a tunable receiving chain, configured to receive a subframe header when tuned to a first receiving bandwidth; a decoder, configured to decode an allocation information from the subframe header, the allocation information indicating an allocation of a plurality of resource blocks in the subframe; and a controller, configured to derive a second receiving bandwidth from the allocation information and to tune the receiving chain to the second receiving bandwidth.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: February 13, 2024
    Assignee: Apple Inc.
    Inventors: Christian Drewes, Giuseppe Patane, Thomas Mayer, Christian Wicpalek, Ram Kanumalli, Burkhard Neurauter
  • Publication number: 20230072903
    Abstract: Embodiments relate to updating spur cancellation at a victim integrated circuit (IC) in accordance with dynamic changes in the operating frequencies of an aggressor IC. The aggressor IC changes its operating frequencies at an update time that is determined in advance. The update time and the changes to the operating frequencies are shared with the victim IC. The victim IC dynamically updates the relationships between frequencies of local clock signals for the victim IC and the aggressor IC. The victim IC generates a spur cancellation parameter based on the updated relationships of local clock frequencies, the update time and the changes to the operating frequencies of the aggressor IC, and configures a spur cancellation circuit. In this way, the victim IC may perform effective spur cancellation despite changes in the operating frequencies of the aggressor IC and deviation of the local clock frequencies.
    Type: Application
    Filed: September 8, 2021
    Publication date: March 9, 2023
    Inventors: Helena Deirdre O'Shea, Dmitry Cherniavsky, Tim Schoenauer, Ali Moaz, Rahmi Hezar, Ram Kanumalli
  • Publication number: 20210392585
    Abstract: A receiver includes a tunable receiving chain, configured to receive a subframe header when tuned to a first receiving bandwidth; a decoder, configured to decode an allocation information from the subframe header, the allocation information indicating an allocation of a plurality of resource blocks in the subframe; and a controller, configured to derive a second receiving bandwidth from the allocation information and to tune the receiving chain to the second receiving bandwidth.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Inventors: Christian Drewes, Giuseppe Patane, Thomas Mayer, Christian Wicpalek, Ram Kanumalli, Burkhard Neurauter
  • Patent number: 11109317
    Abstract: A receiver includes a tunable receiving chain, configured to receive a subframe header when tuned to a first receiving bandwidth; a decoder, configured to decode an allocation information from the subframe header, the allocation information indicating an allocation of a plurality of resource blocks in the subframe; and a controller, configured to derive a second receiving bandwidth from the allocation information and to tune the receiving chain to the second receiving bandwidth.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: August 31, 2021
    Assignee: Apple Inc.
    Inventors: Christian Drewes, Giuseppe Patane, Thomas Mayer, Christian Wicpalek, Ram Kanumalli, Burkhard Neurauter
  • Patent number: 10992335
    Abstract: A transceiver for reducing a distortion component within a baseband receive signal is provided. The distortion component is caused by a baseband transmit signal. The transceiver includes a filter configured to filter the baseband transmit signal using a configurable transfer function to generate a modified baseband transmit signal. The configurable transfer function is based on a leakage component in the baseband receive signal, wherein the leakage component is caused by the baseband transmit signal. The transceiver further includes a processing unit configured to generate, based on the modified baseband transmit signal, an envelope signal representing the envelope of the modified baseband transmit signal. Moreover, the transceiver includes a combiner configured to combine the baseband receive signal and a signal related to the envelope signal.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: April 27, 2021
    Assignee: Apple Inc.
    Inventors: Ahmed Elmaghraby, Ram Kanumalli, Werner Schelmbauer, Stefan Herzinger, Peter Noest
  • Publication number: 20200245248
    Abstract: A receiver includes a tunable receiving chain, configured to receive a subframe header when tuned to a first receiving bandwidth; a decoder, configured to decode an allocation information from the subframe header, the allocation information indicating an allocation of a plurality of resource blocks in the subframe; and a controller, configured to derive a second receiving bandwidth from the allocation information and to tune the receiving chain to the second receiving bandwidth.
    Type: Application
    Filed: August 22, 2016
    Publication date: July 30, 2020
    Inventors: Christian Drewes, Giuseppe Patane, Thomas Mayer, Christian Wicpalek, Ram Kanumalli, Burkhard Neurauter
  • Publication number: 20200119763
    Abstract: A transceiver for reducing a distortion component within a baseband receive signal is provided. The distortion component is caused by a baseband transmit signal. The transceiver includes a filter configured to filter the baseband transmit signal using a configurable transfer function to generate a modified baseband transmit signal. The configurable transfer function is based on a leakage component in the baseband receive signal, wherein the leakage component is caused by the baseband transmit signal. The transceiver further includes a processing unit configured to generate, based on the modified baseband transmit signal, an envelope signal representing the envelope of the modified baseband transmit signal. Moreover, the transceiver includes a combiner configured to combine the baseband receive signal and a signal related to the envelope signal.
    Type: Application
    Filed: June 1, 2017
    Publication date: April 16, 2020
    Inventors: Ahmed Elmaghraby, Ram Kanumalli, Werner Schelmbauer, Stefan Herzinger, Peter Noest
  • Patent number: 10230421
    Abstract: A method for reducing a distortion component within a baseband receive signal is provided. The baseband receive signal is derived from a radio frequency signal and the distortion component is related to an undesired signal component of the radio frequency signal. The method includes generating a first local oscillator signal having a frequency related to a frequency of the undesired signal component. Further the method includes generating an auxiliary baseband signal using the radio frequency signal and the first local oscillator signal. The method further includes generating a second local oscillator signal having a frequency related to a frequency of a desired signal component of the radio frequency signal. Further the method includes generating the baseband receive signal using the radio frequency signal and the second local oscillator signal. The method includes modifying the baseband receive signal based on the auxiliary baseband signal.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: March 12, 2019
    Assignee: Intel IP Corporation
    Inventors: Ram Kanumalli, Andreas Mayer, Werner Schelmbauer, Ahmed S. Elmaghraby, Burkhard Neurauter
  • Publication number: 20180159585
    Abstract: A method for reducing a distortion component within a baseband receive signal is provided. The baseband receive signal is derived from a radio frequency signal and the distortion component is related to an undesired signal component of the radio frequency signal. The method includes generating a first local oscillator signal having a frequency related to a frequency of the undesired signal component. Further the method includes generating an auxiliary baseband signal using the radio frequency signal and the first local oscillator signal. The method further includes generating a second local oscillator signal having a frequency related to a frequency of a desired signal component of the radio frequency signal. Further the method includes generating the baseband receive signal using the radio frequency signal and the second local oscillator signal. The method includes modifying the baseband receive signal based on the auxiliary baseband signal.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 7, 2018
    Inventors: Ram Kanumalli, Andreas Mayer, Werner Schelmbauer, Ahmed S. Elmaghraby, Burkhard Neurauter