Patents by Inventor Fernando Medeiros

Fernando Medeiros 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: 20240106682
    Abstract: Disclosed is a method comprising generating a preamble matrix comprising a plurality of entries, wherein at least a subset of the plurality of entries indicate random-access preambles; obtaining a sequence encoded with the preamble matrix; and transmitting the sequence to one or more user devices.
    Type: Application
    Filed: September 21, 2023
    Publication date: March 28, 2024
    Inventors: Aliye KAYA, Luiz Fernando MEDEIROS
  • Patent number: 11926481
    Abstract: Aspects include a robotic device for inspection of components of a belt conveyor comprising a mobile platform and a robotic arm having a first end coupled to the mobile platform and a second end, the robotic arm configured to guide the second end to contact at least one of the components of the belt conveyor. Further included is a method for inspecting components of a belt conveyor using a robotic device, including: obtaining temperature and/or noise data of at least one of the components of the belt conveyor; and, if the data are outside a range, then: driving a second end a robotic arm of the robotic device for contacting at least one of the components; and obtaining vibration data from at least one of the components.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: March 12, 2024
    Assignees: VALE S.A., UNIVERSIDADE FEDERAL DO RIO DE JANEIRO—UFRJ
    Inventors: Gustavo Medeiros Freitas, Marcos Paulo Torre, Gabriel Carvalho Garcia, Filipe Augusto Santos Rocha, André Stanzani Franca, Felipe Ribeiro Da Fonseca, Fernando Cesar Lizarralde, Ramon Romankevicius Costa, Alex Fernandes Neves, João Carlos Espiúca Monteiro
  • Patent number: 9979904
    Abstract: The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest is may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry for configuring a region of interest for the sensor array is provided as well as a reading-out circuitry for reading-out pixels belonging to the region of interest. In addition, the corresponding methods for programming the region of interest and for reading-out the region of interest are provided. The circuitry for programming and/or reading-out the region of interest includes per pixel provided storage elements for storing an indication of whether a pixel belongs to a region of interest (ROI). These are configured by the programming circuitry and using when reading-out the ROI for only reading out the pixels of the ROI.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: May 22, 2018
    Assignee: INNOVACIONES MICROELECTRÓNICAS S.L. (ANAFOCUS)
    Inventors: Rafael Dominguez Castro, Sergio Morillas Castillo, Rafael Romay Juárez, Fernando Medeiro Hidalgo
  • Patent number: 9894294
    Abstract: The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest with arbitrary geometry may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry is provided for automatic determining of a ROI and reading out the ROI from the sensor array. The circuitry includes a fast reading-out circuitry which is less precise but faster than the accurate reading-out circuitry for reading-out the pixels of the sensor array. The fast reading-out circuitry reads out the pixels with low-level precision and determines by the processing of the fast read-out pixels the ROI which is then provided to an in-pixel ROI programming circuit for storing the ROI identification and by means thereof to the accurate reading-out circuit which then reads out only the pixels determined to belong to the ROI. The accurate read-out circuit is slower than the fast read-out circuit.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: February 13, 2018
    Assignee: INNOVACIONES MICROELECTRÓNICAS S.L. (ANAFOCUS)
    Inventors: Rafael Dominguez Castro, Sergio Morillas Castillo, Rafael Romay Juárez, Fernando Medeiro Hidalgo
  • Patent number: 9554072
    Abstract: The present invention relates to a two- or multiple-stage analog to digital converter. The converter preferably includes an incremental ADC in the first stage. The incremental ADC comprises an integrator and a comparator. After the predefined number of comparisons performed by the comparator, the output of the integrator appropriately scaled is provided to the second stage where it is further sampled. In particular, the scaling gain is inversely proportional to the integrator gain. The second ADC performs the conversion of the remaining least significant bits and then the output of both stages is combined. Moreover, a calibration and correction approaches are provided for the multi-stage ADC.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: January 24, 2017
    Assignee: Innovaciones Microelectrónicas S.L.
    Inventors: Fernando Medeiro Hidalgo, Rafael Domínguez Castro
  • Publication number: 20150365610
    Abstract: The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest with arbitrary geometry may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry is provided for automatic determining of a ROI and reading out the ROI from the sensor array. The circuitry includes a fast reading-out circuitry which is less precise but faster than the accurate reading-out circuitry for reading-out the pixels of the sensor array. The fast reading-out circuitry reads out the pixels with low-level precision and determines by the processing of the fast read-out pixels the ROI which is then provided to an in-pixel ROI programming circuit for storing the ROI identification and by means thereof to the accurate reading-out circuit which then reads out only the pixels determined to belong to the ROI. The accurate read-out circuit is slower than the fast read-out circuit.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 17, 2015
    Applicant: Innovaciones MicroelectróNicas S.L. (Anafocus)
    Inventors: Rafael DOMINGUEZ CASTRO, Sergio MORILLAS CASTILLO, Rafael ROMAY JUÁREZ, Fernando MEDEIRO HIDALGO
  • Publication number: 20150358571
    Abstract: The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest is may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry for configuring a region of interest for the sensor array is provided as well as a reading-out circuitry for reading-out pixels belonging to the region of interest. In addition, the corresponding methods for programming the region of interest and for reading-out the region of interest are provided. The circuitry for programming and/or reading-out the region of interest includes per pixel provided storage elements for storing an indication of whether a pixel belongs to a region of interest (ROI). These are configured by the programming circuitry and using when reading-out the ROI for only reading out the pixels of the ROI.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 10, 2015
    Applicant: Innovaciones Microelectrónicas S.L.(Anafocus)
    Inventors: Rafael DOMINGUEZ CASTRO, Sergio MORILLAS CASTILLO, Rafael ROMAY JUÁREZ, Fernando MEDEIRO HIDALGO
  • Publication number: 20150215553
    Abstract: The present invention relates to a two- or multiple-stage analog to digital converter. The converter preferably includes an incremental ADC in the first stage. The incremental ADC comprises an integrator and a comparator. After the predefined number of comparisons performed by the comparator, the output of the integrator appropriately scaled is provided to the second stage where it is further sampled. In particular, the scaling gain is inversely proportional to the integrator gain. The second ADC performs the conversion of the remaining least significant bits and then the output of both stages is combined. Moreover, a calibration and correction approaches are provided for the multi-stage ADC.
    Type: Application
    Filed: August 7, 2013
    Publication date: July 30, 2015
    Inventors: Fernando Medeiro Hidalgo, Rafael Domínguez Castro
  • Patent number: 8570411
    Abstract: The objective of this invention is to provide a solid-state image pickup device and its driving method that has a minimum circuit area and a wide dynamic range. The invention includes: a sensor array SA; a memory M; and a signal determination circuit DC. The sensor array has plural pixels in an array integrated on a semiconductor substrate. Each pixel sequentially outputs a first signal and a second signal. The memory M is connected to each column of pixels array and stores the first signal or the second signal. The signal determination circuit DC outputs signal (SS) such that it works as follows: when the first signal is input to memory M from the pixel, the signal determination circuit DC determines whether the first signal can be used. If so, the first signal is selected and the second signal is discarded and is not output to memory M. When the second signal is selected, the second signal is uploaded to memory M.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: October 29, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro-Hidalgo, Francisco J. Jimenez-Garrido
  • Patent number: 8400545
    Abstract: This invention is an amplification circuit which limits increased power consumption and circuit surface area use and an imaging device including this amplification circuit. After initially discharging a capacitor, a signal charge corresponding to the difference between pixel signals is transferred repeatedly to the capacitor during an integration phase storing a signal charge proportional to the number of repetitions. The output of amplification is the signal charge accumulated in the capacitor. The gain is independent of the capacitor capacitance ratio. Thus the capacitor size can be smaller than conventional amplification circuits.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: March 19, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro-Hidalgo, Francisco J. Jimenez-Garrido
  • Patent number: 8264568
    Abstract: This invention is an image pickup device that realizes a wide dynamic range while minimizing circuit area using a pixel array that can pick up a low-sensitivity image and a high-sensitivity image. This invention obtains information (S1/S2) needed for generating a correction coefficient using one more than the number of pixels readout circuits (RC1 to RCn+1). This significantly reduces the circuit area compared with the case of using twice as many readout circuits as pixels for generating the correction coefficient.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: September 11, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro-Hidalgo, Francisco J. Jimenez-Garrido
  • Patent number: 8189079
    Abstract: In recent years, the performance of CMOS and CCD image sensors has dramatically improved, and to utilize the improved performance of these sensors, processing circuitry is provided here. This processing circuitry employs a adjustable gain that varies depending on the intensity of the signal from the image sensor so as to reduce noise, reduce area used, and reduce power consumption.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: May 29, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro, Francisco J. Jimenez
  • Publication number: 20100277623
    Abstract: This invention is an image pickup device that realizes a wide dynamic range while minimizing circuit area using a pixel array that can pick up a low-sensitivity image and a high-sensitivity image. This invention obtains information (S1/S2) needed for generating a correction coefficient using one more than the number of pixels readout circuits (RC1 to RCn+1). This significantly reduces the circuit area compared with the case of using twice as many readout circuits as pixels for generating the correction coefficient.
    Type: Application
    Filed: February 4, 2010
    Publication date: November 4, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro-Hidalgo, Francisco J. Jimenez-Garrido
  • Publication number: 20100265373
    Abstract: The objective of this invention is to provide a solid-state image pickup device and its driving method that has a minimum circuit area and a wide dynamic range. The invention includes: a sensor array SA; a memory M; and a signal determination circuit DC. The sensor array has plural pixels in an array integrated on a semiconductor substrate. Each pixel sequentially outputs a first signal and a second signal. The memory M is connected to each column of pixels array and stores the first signal or the second signal. The signal determination circuit DC outputs signal (SS) such that it works as follows: when the first signal is input to memory M from the pixel, the signal determination circuit DC determines whether the first signal can be used. If so, the first signal is selected and the second signal is discarded and is not output to memory M. When the second signal is selected, the second signal is uploaded to memory M.
    Type: Application
    Filed: February 8, 2010
    Publication date: October 21, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro-Hidalgo, Francisco J. Jimenez-Garrido
  • Publication number: 20100259661
    Abstract: This invention is an amplification circuit which limits increased power consumption and circuit surface area use and an imaging device including this amplification circuit. After initially discharging a capacitor, a signal charge corresponding to the difference between pixel signals is transferred repeatedly to the capacitor during an integration phase storing a signal charge proportional to the number of repetitions. The output of amplification is the signal charge accumulated in the capacitor. The gain is independent of the capacitor capacitance ratio. Thus the capacitor size can be smaller than conventional amplification circuits.
    Type: Application
    Filed: February 8, 2010
    Publication date: October 14, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro-Hidalgo, Francisco J. Jimenez-Garrido
  • Publication number: 20100039544
    Abstract: In recent years, the performance of CMOS and CCD image sensors has dramatically improved, and to utilize the improved performance of these sensors, processing circuitry is provided here. This processing circuitry employs a adjustable gain that varies depending on the intensity of the signal from the image sensor so as to reduce noise, reduce area used, and reduce power consumption.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 18, 2010
    Applicant: Texas Instruments Incorporated
    Inventors: Jose Tejada, Rafael Dominguez-Castro, Fernando Medeiro, Francisco J. Jimenez
  • Patent number: 5702001
    Abstract: A container having panels that contain a bag of strip material. The container is movable between a confining position enclosing the bag of strip material and a position in which the bag is relaxed so as to relax snags of looped elastic material that may have arisen during transit. During transit, the strip material has a tendency to flow from the top and over the edges of the bulk to work its way along the sides, potentially snagging with adjacent loop material. During dispensement of the strip material, these snags may give rise to tension spikes. By displacing the panels of the container out of the confining position and into a relaxed position, the confining forces become relieved and thereby the snags relax. The tension spikes otherwise arising during dispensement are thereby eliminated.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: December 30, 1997
    Assignee: The Moore Company
    Inventors: William E. Russell, Barrie G. Hall, Fernando Medeiros