Patents by Inventor Benjamin Blalock

Benjamin Blalock 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: 8010591
    Abstract: A differential output analog multiplier circuit utilizing four G4-FETs, each source connected to a current source. The four G4-FETs may be grouped into two pairs of two G4-FETs each, where one pair has its drains connected to a load, and the other par has its drains connected to another load. The differential output voltage is taken at the two loads. In one embodiment, for each G4-FET, the first and second junction gates are each connected together, where a first input voltage is applied to the front gates of each pair, and a second input voltage is applied to the first junction gates of each pair. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: August 30, 2011
    Assignee: California Institute of Technology
    Inventors: Mohammad M. Mojarradi, Benjamin Blalock, Sorin Cristoloveanu, Suheng Chen, Kerem Akarvardar
  • Patent number: 7514964
    Abstract: An universal and programmable logic gate based on G4-FET technology is disclosed, leading to the design of more efficient logic circuits. A new full adder design based on the G4-FET is also presented. The G4-FET can also function as a unique router device offering coplanar crossing of signal paths that are isolated and perpendicular to one another. This has the potential of overcoming major limitations in VLSI design where complex interconnection schemes have become increasingly problematic.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: April 7, 2009
    Assignee: California Institute of Technology
    Inventors: Amir Fijany, Farrokh Vatan, Kerem Akarvardar, Benjamin Blalock, Suheng Chen, Sorin Cristoloveanu, Elzbieta Kolawa, Mohammad M. Mojarradi, Nikzad Toomarian
  • Publication number: 20080001658
    Abstract: A differential output analog multiplier circuit utilizing four G4-FETs, each source connected to a current source. The four G4-FETs may be grouped into two pairs of two G4-FETs each, where one pair has its drains connected to a load, and the other par has its drains connected to another load. The differential output voltage is taken at the two loads. In one embodiment, for each G4-FET, the first and second junction gates are each connected together, where a first input voltage is applied to the front gates of each pair, and a second input voltage is applied to the first junction gates of each pair. Other embodiments are described and claimed.
    Type: Application
    Filed: May 21, 2007
    Publication date: January 3, 2008
    Inventors: Mohammad Mojarradi, Benjamin Blalock, Sorin Cristoloveanu, Suheng Chen, Kerem Akarvardar
  • Publication number: 20070229158
    Abstract: The present invention relates to a reference current circuit. The reference circuit comprises a low-level current bias circuit, a voltage proportional-to-absolute temperature generator for creating a proportional-to-absolute temperature voltage (VPTAT), and a MOSFET-based constant-IC regulator circuit. The MOSFET-based constant-IC regulator circuit includes a constant-IC input and constant-IC output. The constant-IC input is electrically connected with the VPTAT generator such that the voltage proportional-to-absolute temperature is the input into the constant-IC regulator circuit. Thus the constant-IC output maintains the constant-IC ratio across any temperature range.
    Type: Application
    Filed: December 7, 2006
    Publication date: October 4, 2007
    Inventors: Mohammad Mojarradi, Greg Levanas, Yuan Chen, Raymond Cozy, Robert Greenwell, Stephen Terry, Benjamin Blalock
  • Publication number: 20070008013
    Abstract: An universal and programmable logic gate based on G4-FET technology is disclosed, leading to the design of more efficient logic circuits. A new full adder design based on the G4-FET is also presented. The G4-FET can also function as a unique router device offering coplanar crossing of signal paths that are isolated and perpendicular to one another. This has the potential of overcoming major limitations in VLSI design where complex interconnection schemes have become increasingly problematic.
    Type: Application
    Filed: March 15, 2006
    Publication date: January 11, 2007
    Inventors: Amir Fijany, Farrokh Vatan, Kerem Akarvardar, Benjamin Blalock, Suheng Chen, Sorin Cristoloveanu, Elzbieta Kolawa, Mohammad Mojarradi, Nikzad Toomarian
  • Patent number: 6503782
    Abstract: A method and device produced for design, construction, and use of integrated circuits in wide bandgap semiconductors, including methods for fabrication of n-channel and p-channel junction field effect transistors on a single wafer or die, such that the produced devices may have pinchoff voltages of either positive or negative polarities. A first layer of either p-type or n-type is formed as a base. An alternating, channel layer of either n-type or p-type is then formed, followed by another layer of the same type as the first layer. Etching is used to provide contacts for the gates, source, and drain of the device. In one variation, pinchoff voltage is controlled via dopant level and thickness the channel region. In another variation, pinchoff voltage is controlled by variation of dopant level across the channel layer; and in another variation, pinchoff voltage is controlled by both thickness and variation of dopant level.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: January 7, 2003
    Assignee: Mississippi State University Research and Technology Corporation (RTC)
    Inventors: Jeffrey Blaine Casady, Benjamin Blalock, Stephen E. Saddow, Michael S. Mazzola
  • Publication number: 20020123174
    Abstract: A method and device produced for design, construction, and use of integrated circuits in wide bandgap semiconductors, including methods for fabrication of n-channel and p-channel junction field effect transistors on a single wafer or die, such that the produced devices may have pinchoff voltages of either positive or negative polarities. A first layer of either p-type or n-type is formed as a base. An alternating, channel layer of either n-type or p-type is then formed, followed by another layer of the same type as the first layer. Etching is used to provide contacts for the gates, source, and drain of the device. In one variation, pinchoff voltage is controlled via dopant level and thickness the channel region. In another variation, pinchoff voltage is controlled by variation of dopant level across the channel layer; and in another variation, pinchoff voltage is controlled by both thickness and variation of dopant level.
    Type: Application
    Filed: March 2, 2001
    Publication date: September 5, 2002
    Inventors: Jeffrey Blaine Casady, Benjamin Blalock, Stephen E. Saddow, Michael S. Mazzola