Patents by Inventor Carl S. Chun

Carl S. Chun 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: 6882227
    Abstract: A transistor bias circuit is provided that is capable of biasing an amplifier transistor having a control terminal, a current-sink terminal, and a current-source terminal in order to control inter-modulation and linearize the output corresponding to radio frequency and microwave frequency ranges. Additionally, an embodiment of the present circuit is capable of dynamic power control. The transistor bias circuit according to the present invention utilizes a leakage current to alter the electrical characteristics of the amplifier transistor. The bias circuit comprises a bias transistor having a control terminal, a current-sink terminal, and a current-source terminal. Additionally, at least one DC input port, at least one resonator element, a diode element, and a resistive element is provided.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: April 19, 2005
    Assignee: Anadigics
    Inventors: Daryl W. Barry, Carl S. Chun, Sangwoo Han, Thomas B. Smith, Michael W. Trippe
  • Publication number: 20040130374
    Abstract: A transistor bias circuit is provided that is capable of biasing an amplifier transistor having a control terminal, a current-sink terminal, and a current-source terminal in order to control inter-modulation and linearize the output corresponding to radio frequency and microwave frequency ranges. Additionally, an embodiment of the present circuit is capable of dynamic power control. The transistor bias circuit according to the present invention utilizes a leakage current to alter the electrical characteristics of the amplifier transistor. The bias circuit comprises a bias transistor having a control terminal, a current-sink terminal, and a current-source terminal. Additionally, at least one DC input port, at least one resonator element, a diode element, and a resistive element is provided.
    Type: Application
    Filed: September 15, 2003
    Publication date: July 8, 2004
    Inventors: Daryl W. Barry, Carl S. Chun, Sangwoo Han, Thomas B. Smith, Michael W. Trippe
  • Patent number: 6645790
    Abstract: The present invention is generally drawn to a system and method for creating RF integrated microwave circuits that can support multiple applications where many RF functions can be derived from a generic integrated circuit after the RF integrated microwave circuit is manufactured. More specifically, the present invention can provide active and passive device building blocks of respective monolithic microwave integrated circuit (MMIC) arrays and substrates that can be coupled together in various ways after manufacture of the integrated circuits to achieve multiple applications. This can accomplished by manufacturing chips with multiple active device blocks that can support various and multiple applications and that can be coupled together in various ways, adjusted, or tuned after manufacture.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 11, 2003
    Assignee: Anadigics, Inc.
    Inventors: Sanjay B. Moghe, Carl S. Chun, Pranav N. Patel, Seung-yup Yoo
  • Publication number: 20020110942
    Abstract: The present invention is generally drawn to a system and method for creating RF integrated microwave circuits that can support multiple applications where many RF functions can be derived from a generic integrated circuit after the RF integrated microwave circuit is manufactured. More specifically, the present invention can provide active and passive device building blocks of respective monolithic microwave integrated circuit (MMIC) arrays and substrates that can be coupled together in various ways after manufacture of the integrated circuits to achieve multiple applications. This can accomplished by manufacturing chips with multiple active device blocks that can support various and multiple applications and that can be coupled together in various ways, adjusted, or tuned after manufacture.
    Type: Application
    Filed: December 21, 2001
    Publication date: August 15, 2002
    Applicant: RF Solutions, Inc.
    Inventors: Sanjay B. Moghe, Carl S. Chun, Pranav N. Patel, Seung-yup Yoo