Patents by Inventor Fernando N. Hidalgo

Fernando N. Hidalgo 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).

  • Wireless transceiver and method of operating the same
    Patent number: 7937064
    Abstract: A transceiver 400 is provided in an ultrawide bandwidth device, which includes an antenna 110, a transmitter circuit 145, and a receiver circuit 165. A transmitter amplifier 440 is provided between the antenna 110 and the transmitter circuit 145, and is configured to have an operational transmitter output impedance when the transceiver 400 is in a transmit mode and an isolation transmitter output impedance when the transceiver 400 is in a receive mode. A receiver amplifier 460 is provided between the antenna 110 and the receiver circuit 165, and is configured to have an operational receiver input impedance when the transceiver 400 is in a receive mode and an isolation receiver input impedance when the transceiver 400 is in a transmit mode. The isolation transmitter output impedance is greater than the operational receiver input impedance, and the isolation receiver input impedance is greater than the operational transmitter output impedance.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: May 3, 2011
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Phuong T. Huynh, John W. McCorkle, Fernando N. Hidalgo
  • Wireless transceiver and method of operating the same
    Patent number: 7324790
    Abstract: A transceiver 400 is provided in an ultrawide bandwidth device, which includes an antenna 110, a transmitter circuit 145, and a receiver circuit 165. A transmitter amplifier 440 is provided between the antenna 110 and the transmitter circuit 145, and is configured to have an operational transmitter output impedance when the transceiver 400 is in a transmit mode and an isolation transmitter output impedance when the transceiver 400 is in a receive mode. A receiver amplifier 460 is provided between the antenna 110 and the receiver circuit 165, and is configured to have an operational receiver input impedance when the transceiver 400 is in a receive mode and an isolation receiver input impedance when the transceiver 400 is in a transmit mode. The isolation transmitter output impedance is greater than the operational receiver input impedance, and the isolation receiver input impedance is greater than the operational transmitter output impedance.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: January 29, 2008
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Phuong T. Hyunh, John W. McCorkle, Fernando N. Hidalgo
  • Display driver having a low power mode
    Patent number: 5859625
    Abstract: A display driver circuit (100) includes N scanning drivers (150) for driving a scanning set of display electrodes of a display panel (160) with a set of scanning signals (155), P information drivers (130) for driving an information set of display electrodes of the display panel (160) with a set of information signals (135), and a control section (120) having a first mode and a second mode. In the first mode the control section (120) controls the N scanning drivers (150) to generate N different scanning signals (155). In the second mode the control section controls the N scanning drivers (150) to generate a common scanning signal by S of the scanning drivers (156) and N-S different scanning signals by N-S drivers of the scanning drivers (157), wherein N, P and S are positive integers.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: January 12, 1999
    Assignee: Motorola, Inc.
    Inventors: Eytan Hartung, Fernando N. Hidalgo