Patents by Inventor Francisco Ledesma

Francisco Ledesma 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: 20230254003
    Abstract: Certain aspects of the present disclosure provide techniques and apparatus for calibrating radio frequency (RF) circuits using machine learning. One example method generally includes calibrating a first subset of RF circuit calibration parameters. Values are predicted for a second subset of RF circuit calibration parameters based on a machine learning model and the first subset of RF circuit calibration parameters. The second subset of RF circuit calibration parameters may be distinct from the first subset of RF circuit calibration parameters. At least the first subset of RF circuit calibration parameters is verified, and after the verifying, at least the first subset of RF circuit calibration parameters are written to a memory associated with the RF circuit.
    Type: Application
    Filed: March 22, 2023
    Publication date: August 10, 2023
    Inventors: Lindsey Makana KOSTAS, Rishubh KHURANA, Ahmed YOUSSEF, Francisco LEDESMA, Sergey MURASHOV, Viral RANPARA, Enrique DE LA ROSA, Ming LEUNG, Gurkanwal Singh SAHOTA, Shahnaz SHIRAZI
  • Patent number: 11637582
    Abstract: Certain aspects of the present disclosure provide techniques and apparatus for calibrating radio frequency (RF) circuits using machine learning. One example method generally includes calibrating a first subset of RF circuit calibration parameters. Values are predicted for a second subset of RF circuit calibration parameters based on a machine learning model and the first subset of RF circuit calibration parameters. The second subset of RF circuit calibration parameters may be distinct from the first subset of RF circuit calibration parameters. At least the first subset of RF circuit calibration parameters is verified, and after the verifying, at least the first subset of RF circuit calibration parameters are written to a memory associated with the RF circuit.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: April 25, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Lindsey Makana Kostas, Rishubh Khurana, Ahmed Youssef, Francisco Ledesma, Sergey Murashov, Viral Ranpara, Enrique De La Rosa, Ming Leung, Gurkanwal Singh Sahota, Shahnaz Shirazi
  • Patent number: 10651136
    Abstract: When forming semiconductor devices, plasma-induced damage may be prevented or restricted by providing a conductive path between critical areas and the substrate of the semiconductor device. According to the present disclosure, a negative effect of any such protective structures on the performance of the semiconductor device may be significantly reduced by permanently interrupting the corresponding electrical connection at any appropriate point in time of the manufacturing sequence. Furthermore, respective fuse structures acting as current-sensitive areas may also be implemented in test structures in order to evaluate plasma-induced currents, thereby providing a possibility for a more efficient design of respective protective structures and/or for contributing to superior process control of critical plasma treatments.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: May 12, 2020
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: David Pritchard, Lixia Lei, Francisco Ledesma Rabadan
  • Publication number: 20190074257
    Abstract: When forming semiconductor devices, plasma-induced damage may be prevented or restricted by providing a conductive path between critical areas and the substrate of the semiconductor device. According to the present disclosure, a negative effect of any such protective structures on the performance of the semiconductor device may be significantly reduced by permanently interrupting the corresponding electrical connection at any appropriate point in time of the manufacturing sequence. Furthermore, respective fuse structures acting as current-sensitive areas may also be implemented in test structures in order to evaluate plasma-induced currents, thereby providing a possibility for a more efficient design of respective protective structures and/or for contributing to superior process control of critical plasma treatments.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 7, 2019
    Inventors: David Pritchard, Lixia Lei, Francisco Ledesma Rabadan
  • Patent number: 8060019
    Abstract: Various apparatuses and methods for protecting a transmitter from electrostatic discharge are disclosed herein. For example, some embodiments provide an apparatus including a first ESD clamp connected to an antenna input, a first reactive component connected to the first ESD clamp, a second ESD clamp connected to the first reactive component, and a second reactive component connected between the second ESD clamp and the transmitter.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: November 15, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Brian P. Ginsburg, Yuanying Deng, Mehmet Ozgun, Baher Haroun, Francisco Ledesma
  • Publication number: 20110092246
    Abstract: Various apparatuses and methods for protecting a transmitter from electrostatic discharge are disclosed herein. For example, some embodiments provide an apparatus including a first ESD clamp connected to an antenna input, a first reactive component connected to the first ESD clamp, a second ESD clamp connected to the first reactive component, and a second reactive component connected between the second ESD clamp and the transmitter.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 21, 2011
    Inventors: Brian P. Ginsburg, Yuanying Deng, Mehmet Ozgun, Baher Haroun, Francisco Ledesma
  • Publication number: 20080204601
    Abstract: A low bandwidth signal path is added to copy internal node DC signal to output node. Therefore, for a DC or low frequency signal, the output signal is controlled by this loop. On the other hand, a high frequency signal is not affected because of the low-bandwidth of added loop. Thus, both DC and AC coupling modes are realized for components such as low-voltage video drivers.
    Type: Application
    Filed: February 22, 2007
    Publication date: August 28, 2008
    Applicant: Texas Instruments
    Inventors: Chuanyang Wang, Francisco Ledesma, Alexander Herve Reyes