Patents by Inventor Nam Phan

Nam Phan 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).

  • Patent number: 11966837
    Abstract: In an approach for compressing a neural network, a processor receives a neural network, wherein the neural network has been trained on a set of training data. A processor receives a compression ratio. A processor compresses the neural network based on the compression ratio using an optimization model to solve for sparse weights. A processor re-trains the compressed neural network with the sparse weights. A processor outputs the re-trained neural network.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: April 23, 2024
    Assignee: International Business Machines Corporation
    Inventors: Dzung Phan, Lam Nguyen, Nam H. Nguyen, Jayant R. Kalagnanam
  • Patent number: 11929538
    Abstract: A RF dielectric filter comprising a block of dielectric material including top and bottom exterior longitudinal surfaces and side exterior surfaces covered with a layer of conductive material. RF signal input/output pads are located at opposed ends of the block. Each of the RF signal input/output pads comprises a strip of conductive material bridging between the bottom exterior surface and the side exterior surface. A strip or region of dielectric material surrounds all the sides of the elongate strip of conductive material except for one end of the strip of conductive material on the side exterior surface which is in a direct unitary coupling relationship with the remainder of the conductive material on the side exterior surface. In one embodiment, the strip or region of dielectric material is generally U-shaped and can vary in width.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: March 12, 2024
    Assignee: CTS Corporation
    Inventors: Dong Jing, Gabriel Lopez, Nam Phan
  • Publication number: 20220200113
    Abstract: A RF dielectric filter comprising a block of dielectric material including top and bottom exterior longitudinal surfaces and side exterior surfaces covered with a layer of conductive material. RF signal input/output pads are located at opposed ends of the block. Each of the RF signal input/output pads comprises a strip of conductive material bridging between the bottom exterior surface and the side exterior surface. A strip or region of dielectric material surrounds all the sides of the elongate strip of conductive material except for one end of the strip of conductive material on the side exterior surface which is in a direct unitary coupling relationship with the remainder of the conductive material on the side exterior surface. In one embodiment, the strip or region of dielectric material is generally U-shaped and can vary in width.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Applicant: CTS Corporation
    Inventors: Dong Jing, Gabriel Lopez, Nam Phan
  • Patent number: 9666921
    Abstract: A dielectric wave guide filter comprising a block of dielectric material defining a plurality of resonators separated by an interior layer of conductive material. A first direct path for the transmission of an RF signal is defined by the plurality of resonators. An external substrate is coupled to an exterior surface of the block of dielectric material and defines a pair of RF signal input/output transmission vias filled with a conductive material and an interior RF signal transmission line extending between and interconnecting the pair or RF signal input/output transmission vias and providing an indirect cross-coupling path for the RF signal between two of the resonators separated by the interior layer of conductive material.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: May 30, 2017
    Assignee: CTS Corporation
    Inventors: Alexandre Rogozine, Nam Phan
  • Patent number: 9583805
    Abstract: An RF filter assembly comprising a substrate, an RF waveguide filter mounted on the substrate and a pair of alignment/mounting/RF signal transmission pins extending from respective apertures in the substrate into respective through-holes in the RF filter. In one embodiment, the RF waveguide filter is comprised of first and second blocks of dielectric material coupled together in an abutting side-by-side relationship and the pair of through-holes are defined in the first and second blocks respectively. In one embodiment, respective RF signal transmission pads defined on the respective first and second blocks of dielectric material are abutted against respective RF signal transmission pads defined on the substrate and interconnected by an RF signal transmission line in the interior of the substrate for transmitting the RF signal between the first and second blocks of dielectric material.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: February 28, 2017
    Assignee: CTS Corporation
    Inventors: Hugo Enrique Cuadras, Nam Phan
  • Publication number: 20160380322
    Abstract: A dielectric wave guide filter comprising a block of dielectric material defining a plurality of resonators separated by an interior layer of conductive material. A first direct path for the transmission of an RF signal is defined by the plurality of resonators. An external substrate is coupled to an exterior surface of the block of dielectric material and defines a pair of RF signal input/output transmission vias filled with a conductive material and an interior RF signal transmission line extending between and interconnecting the pair or RF signal input/output transmission vias and providing an indirect cross-coupling path for the RF signal between two of the resonators separated by the interior layer of conductive material.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventors: Alexandre Rogozine, Nam Phan
  • Patent number: 9466864
    Abstract: An RF duplexer waveguide filter module for the transmission and filtering of TX and RX RF signals comprising a substrate with TX and RX filter assemblies mounted thereon. One or both of the TX and RX filter assemblies comprises an RF waveguide filter assembly including a plurality of blocks of dielectric material coupled together in a side-by-side relationship. Each of the blocks of dielectric material defines at least one slit and at least one internal RF signal transmission window. One or both of the end blocks defines a step and a through-hole terminating in an opening in the step. In one embodiment, the RF duplexer waveguide filter module additionally comprises an RF antenna waveguide filter extending between and coupling the TX and RX filter assemblies to an antenna RF signal transmission line.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: October 11, 2016
    Assignee: CTS Corporation
    Inventors: Alexandre Rogozine, Reddy Vangala, Nam Phan
  • Patent number: 9437909
    Abstract: A waveguide filter comprising a base block of dielectric material defining at least first and second resonators and a bridge block seated on top of the base block and defining at least a third resonator. In one embodiment, the base block comprises first and second base blocks that have been coupled together in an end to end relationship. An external transmission line or an interior RF signal transmission window or an RF signal transmission bridge provides a cross-coupling RF signal transmission path between the first and second resonators. At least first and second interior RF signal transmission windows provide a direct RF signal transmission path between the first and third resonators and the second and third resonators respectively.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: September 6, 2016
    Assignee: CTS Corporation
    Inventors: Reddy Vangala, Nam Phan
  • Publication number: 20160087322
    Abstract: A waveguide filter comprising a base block of dielectric material defining at least first and second resonators and a bridge block seated on top of the base block and defining at least a third resonator. In one embodiment, the base block comprises first and second base blocks that have been coupled together in an end to end relationship. An external transmission line or an interior RF signal transmission window or an RF signal transmission bridge provides a cross-coupling RF signal transmission path between the first and second resonators. At least first and second interior RF signal transmission windows provide a direct RF signal transmission path between the first and third resonators and the second and third resonators respectively.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 24, 2016
    Inventors: Reddy Vangala, Nam Phan
  • Publication number: 20150295294
    Abstract: An RF duplexer waveguide filter module for the transmission and filtering of TX and RX RF signals comprising a substrate with TX and RX filter assemblies mounted thereon. One or both of the TX and RX filter assemblies comprises an RF waveguide filter assembly including a plurality of blocks of dielectric material coupled together in a side-by-side relationship. Each of the blocks of dielectric material defines at least one slit and at least one internal RF signal transmission window. One or both of the end blocks defines a step and a through-hole terminating in an opening in the step. In one embodiment, the RF duplexer waveguide filter module additionally comprises an RF antenna waveguide filter extending between and coupling the TX and RX filter assemblies to an antenna RF signal transmission line.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 15, 2015
    Inventors: Alexandre Rogozine, Reddy Vangala, Nam Phan
  • Patent number: 9130258
    Abstract: A waveguide filter comprising a base block of dielectric material defining at least first and second resonators and a bridge block seated on top of the base block and defining at least a third resonator. In one embodiment, the base block comprises first and second base blocks that have been coupled together in an end to end relationship. An external transmission line or an interior RF signal transmission window or an RF signal transmission bridge provides a cross-coupling RF signal transmission path between the first and second resonators. At least first and second interior RF signal transmission windows provide a direct RF signal transmission path between the first and third resonators and the second and third resonators respectively.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: September 8, 2015
    Assignee: CTS CORPORATION
    Inventors: Reddy Vangala, Nam Phan
  • Publication number: 20150207193
    Abstract: An RF filter assembly comprising a substrate, an RF waveguide filter mounted on the substrate and a pair of alignment/mounting/RF signal transmission pins extending from respective apertures in the substrate into respective through-holes in the RF filter. In one embodiment, the RF waveguide filter is comprised of first and second blocks of dielectric material coupled together in an abutting side-by-side relationship and the pair of through-holes are defined in the first and second blocks respectively. In one embodiment, respective RF signal transmission pads defined on the respective first and second blocks of dielectric material are abutted against respective RF signal transmission pads defined on the substrate and interconnected by an RF signal transmission line in the interior of the substrate for transmitting the RF signal between the first and second blocks of dielectric material.
    Type: Application
    Filed: April 1, 2015
    Publication date: July 23, 2015
    Inventors: Hugo Enrique Cuadras, Nam Phan
  • Publication number: 20150084720
    Abstract: A waveguide filter comprising a base block of dielectric material defining at least first and second resonators and a bridge block seated on top of the base block and defining at least a third resonator. In one embodiment, the base block comprises first and second base blocks that have been coupled together in an end to end relationship. An external transmission line or an interior RF signal transmission window or an RF signal transmission bridge provides a cross-coupling RF signal transmission path between the first and second resonators. At least first and second interior RF signal transmission windows provide a direct RF signal transmission path between the first and third resonators and the second and third resonators respectively.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Applicant: CTS Corporation
    Inventors: Reddy Vangala, Nam Phan