Patents by Inventor Miguel Rojas

Miguel Rojas 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: 20240153694
    Abstract: A liquid cooled bobbin for a wire wound magnetic device having an electro-insulating bobbin (20) with a first outer surface (21) of a closed contour, therearound, for supporting at least one first conductor wire winding (DX) wound around a first axis (X) defined by the electro-insulating bobbin (20), and a chamber (30) within the electro-insulating bobbin (20), the chamber being integrable to a sealed cooling circuit through connection ports (31) allowing a path of a cooling liquid through the chamber (30). The chamber (30) has two parallel walls (32, 33) of the electro-insulating bobbin (20), one of the walls (32, 33) providing the first outer surface (21), and the chamber (30) extends at least around most of the closed contour of the first outer surface (21).
    Type: Application
    Filed: February 25, 2022
    Publication date: May 9, 2024
    Inventors: Claudio CANETE CABEZA, Antonio ROJAS CUEVAS, Francisco Ezequiel NAVARRO PEREZ, Miguel Angel ARIZA BAQUERO
  • Patent number: 10020739
    Abstract: An integrated current replicator includes a first current sense resistor configured to sense a first input current to a power converter during a primary portion of a duty cycle and a first transconductance amplifier configured produce a first voltage at a common circuit node proportional to the first input current during the primary portion of the duty cycle. The integrated current replicator includes a second current sense resistor configured to sense a second input current to the power converter during a complementary portion of the duty cycle and a second transconductance amplifier configured produce a second voltage at the common circuit node proportional to the second input current during the complementary portion of the duty cycle. The integrated current replicator includes an amplifier configured to produce a voltage replicating the first input current and the second input current from the first voltage and the second voltage.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: July 10, 2018
    Assignee: Altera Corporation
    Inventors: Douglas Dean Lopata, Jeffrey Demski, Jay Norton, Miguel Rojas-Gonzalez
  • Patent number: 9673192
    Abstract: A semiconductor device including a resistor metallic layer and method forming the same. In one embodiment, the semiconductor device includes a source region and a drain region of a power switch on a substrate. The semiconductor device also includes the resistor metallic layer over the source region and the drain region of the power switch. The resistor metallic layer includes a current sense resistor including a first current sense resistor metallic strip coupled between a first cross member and a second cross member, and a first gain resistor including a first gain resistor metallic strip coupled to the first cross member. The semiconductor device also includes an amplifier over the substrate and coupled to the first gain resistor metallic strip.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: June 6, 2017
    Assignee: Altera Corporation
    Inventors: Douglas Dean Lopata, Jeffrey Demski, Jay Norton, Miguel Rojas-Gonzales
  • Patent number: 9536938
    Abstract: A semiconductor device including a resistor metallic layer and method forming the same. In one embodiment, the semiconductor device includes a source region and a drain region of a semiconductor switch on a substrate. The semiconductor device also includes the resistor metallic layer over the source region and the drain region of the semiconductor switch. The resistor metallic layer includes a first resistor with a first resistor metallic strip coupled between a first cross member and a second cross member of the resistor metallic layer.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 3, 2017
    Assignee: Altera Corporation
    Inventors: Douglas Dean Lopata, Jeffrey Demski, Jay Norton, Miguel Rojas-Gonzales
  • Patent number: 9508785
    Abstract: A semiconductor device including a resistor metallic layer and method forming the same. In one embodiment, the semiconductor device includes a source region and a drain region of a semiconductor switch on a substrate. The semiconductor device also includes the resistor metallic layer over the source region and the drain region of the semiconductor switch. The resistor metallic layer includes a first resistor with a first resistor metallic strip coupled between a first cross member and a second cross member of the resistor metallic layer.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: November 29, 2016
    Assignee: Altera Corporation
    Inventors: Douglas Dean Lopata, Jeffrey Demski, Jay Norton, Miguel Rojas-Gonzales
  • Publication number: 20150280558
    Abstract: An integrated current replicator includes a first current sense resistor configured to sense a first input current to a power converter during a primary portion of a duty cycle and a first transconductance amplifier configured produce a first voltage at a common circuit node proportional to the first input current during the primary portion of the duty cycle. The integrated current replicator includes a second current sense resistor configured to sense a second input current to the power converter during a complementary portion of the duty cycle and a second transconductance amplifier configured produce a second voltage at the common circuit node proportional to the second input current during the complementary portion of the duty cycle. The integrated current replicator includes an amplifier configured to produce a voltage replicating the first input current and the second input current from the first voltage and the second voltage.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 1, 2015
    Applicant: ALTERA CORPORATION
    Inventors: Douglas Dean Lopata, Jeffrey Demski, Jay Norton, Miguel Rojas-Gonzalez
  • Publication number: 20130014646
    Abstract: The invention provides an air filter system specially designed to fit over the air conditioning and heat vents located on the dashboard of a vehicle. The filter provides an adhesively attached filter containing activated charcoal and an air freshening scent to provide a more pleasant and healthy intake of air.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 17, 2013
    Inventors: Miguel Rojas, Miriam V. Cabrera, Dulce M. Cabrera
  • Publication number: 20110143700
    Abstract: Method and device for detecting a target spectrum and its frequency location in a scenario contaminated with strong jammers on other interferers. The detection is based on the geodesic distance between the correlation matrix (RD) of the received signal and the correlation matrix (RT) of the target spectrum (TS) which is assumed known in shape and bandwidth. The detection happens when the threshold (Formula (I)) is overcome. The frequency location is based on the minimization of the mean square error between RD and RT.
    Type: Application
    Filed: June 25, 2008
    Publication date: June 16, 2011
    Applicant: Fundacio Centre Techologic De Telecommunicacions De Catalunya
    Inventors: Angel Miguel Lagunas Hernandez, Isabel Ana Perez-Neira, Xavier Mestre Pons, Angel Miguel Rojas Hernandez
  • Publication number: 20070229000
    Abstract: This invention is referred to an energy saving device which supplies the high efficiency sodium steam lamps and a method providing additional savings of electrical energy by means of the temporary reduction in the luminous flow of a high efficiency sodium steam lamp. The energy saving device includes in its operation protection against low voltage supply, regulation of supply voltage and protection in absence or damage of the lamp. In turn, the method includes a sequence for a reliable ignition of the lamp, a modulation routine in frequency for elimination of acoustic resonance and an automatic turn off sequence in view of damage of the photocell which is a consequence in this type of devices, as well as a consumption detection system to keep the output power steady and therefore, keep the power consumption under a steady value.
    Type: Application
    Filed: October 27, 2006
    Publication date: October 4, 2007
    Applicant: LUXTRONIC, S.A. DE CV
    Inventors: Jose D'Acosta Ruiz, Jose Luna Peralta, Miguel Rojas Gutierrez
  • Publication number: 20050030156
    Abstract: The invention comprises a long-range wireless vehicle command system that can be used to provide commands to a conventional remote vehicle starter over long distances. The long-range wireless vehicle command system may be based on existing wireless technology such as a pager and the transmitter of a remote vehicle starter.
    Type: Application
    Filed: July 23, 2004
    Publication date: February 10, 2005
    Inventors: Ronel Alfonso, Miguel Rojas, Marlene Falcon