Patents by Inventor Humberto Andrade Da Fonseca

Humberto Andrade Da Fonseca 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).

  • Near field RF communicator and timing apparatus
    Patent number: 9515705
    Abstract: A near field communications (NFC) device is disclosed that detects an envelope of a radio frequency (RF) signal. The NFC device includes a peak detector that determines the envelope of the RF signal. The peak detector compares a first differential signal voltage to a second differential signal voltage. The peak detector delays a rising edge of a first differential signal and provides the first differential signal voltage to the peak detector output when the first differential signal voltage is greater than the second differential signal voltage. The peak detector delays a falling edge of a second differential signal and provides the second differential signal voltage to the peak detector output when the second differential signal voltage is greater than the first differential signal voltage.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: December 6, 2016
    Assignee: Broadcom Corporation
    Inventors: Humberto Andrade da Fonseca, Lance Rhys Trodd, Robin Wyndham John Wilson, David John Miles
  • NEAR FIELD RF COMMUNICATOR AND TIMING APPARATUS
    Publication number: 20160127013
    Abstract: A near field communications (NFC) device is disclosed that detects an envelope of a radio frequency (RF) signal. The NFC device includes a peak detector that determines the envelope of the RF signal. The peak detector compares a first differential signal voltage to a second differential signal voltage. The peak detector delays a rising edge of a first differential signal and provides the first differential signal voltage to the peak detector output when the first differential signal voltage is greater than the second differential signal voltage. The peak detector delays a falling edge of a second differential signal and provides the second differential signal voltage to the peak detector output when the second differential signal voltage is greater than the first differential signal voltage.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Applicant: Broadcom Corporation
    Inventors: Humberto Andrade Da FONSECA, Lance Rhys TRODD, Robin Wyndham John WILSON, David John MILES
  • Detecting peaks in a received signal in a near field communications (NFC) device
    Patent number: 9236915
    Abstract: A near field communications (NFC) device is disclosed that detects an envelope of a radio frequency (RF) signal. The NFC device includes a peak detector that determines the envelope of the RF signal. The peak detector compares a first differential signal voltage to a second differential signal voltage. The peak detector delays a rising edge of a first differential signal and provides the first differential signal voltage to the peak detector output when the first differential signal voltage is greater than the second differential signal voltage. The peak detector delays a falling edge of a second differential signal and provides the second differential signal voltage to the peak detector output when the second differential signal voltage is greater than the first differential signal voltage.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 12, 2016
    Assignee: Broadcom Corporation
    Inventors: Humberto Andrade Da Fonseca, Lance Rhys Trodd, Robin Wyndham John Wilson, David John Miles
  • Detecting peaks in a received signal in a near field communications (NFC) device
    Publication number: 20110300799
    Abstract: A near field communications (NFC) device is disclosed that detects an envelope of a radio frequency (RF) signal. The NFC device includes a peak detector that determines the envelope of the RF signal. The peak detector compares a first differential signal voltage to a second differential signal voltage. The peak detector delays a rising edge of a first differential signal and provides the first differential signal voltage to the peak detector output when the first differential signal voltage is greater than the second differential signal voltage. The peak detector delays a falling edge of a second differential signal and provides the second differential signal voltage to the peak detector output when the second differential signal voltage is greater than the first differential signal voltage.
    Type: Application
    Filed: April 27, 2011
    Publication date: December 8, 2011
    Applicant: Broadcom Corporation
    Inventors: Humberto Andrade Da Fonseca, Lance Rhys Trodd, Robin Wyndham John Wilson, David John Miles