Patents by Inventor Carl R. C. De Ranter

Carl R. C. De Ranter 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).

  • Oscillator topology for very low phase noise operation
    Patent number: 6927643
    Abstract: An oscillator circuit includes a tank circuit, first and second oscillator transistors, and a gain-cell tuning inductor. The tank circuit includes first and second ports, and is configured to resonate at one or more predefined frequencies. The first oscillator transistor includes first port, a second port coupled to the first port of the tank circuit, and a third port. The second oscillator transistor includes a first port, a second port coupled to the second port of the tank circuit, and a third port. The gain-cell tuning inductor is coupled between the third ports of the first and second oscillator transistors and is operable to conduct a biasing signal supplied thereto to the third ports of the first and second oscillator transistors.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: August 9, 2005
    Assignee: RF Magic, Inc.
    Inventors: Raducu Lazarescu, Carl R. C. De Ranter, Bert L. Fransis
  • Oscillator Topology for Very Low Phase Noise Operation
    Publication number: 20040108908
    Abstract: An oscillator circuit includes a tank circuit, first and second oscillator transistors, and a gain-cell tuning inductor. The tank circuit includes first and second ports, and is configured to resonate at one or more predefined frequencies. The first oscillator transistor includes first port, a second port coupled to the first port of the tank circuit, and a third port. The second oscillator transistor includes a first port, a second port coupled to the second port of the tank circuit, and a third port. The gain-cell tuning inductor is coupled between the third ports of the first and second oscillator transistors and is operable to conduct a biasing signal supplied thereto to the third ports of the first and second oscillator transistors.
    Type: Application
    Filed: October 15, 2003
    Publication date: June 10, 2004
    Applicant: RF MAGIC, INC.
    Inventors: Raducu Lazarescu, Carl R. C. De Ranter, Bert L. Fransis