Patents by Inventor Ed Franzwa

Ed Franzwa 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: 8988127
    Abstract: In one embodiment, a temperature compensating attenuator is disclosed having an attenuation circuit and a control circuit. The temperature compensating attenuator circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with an impedance attenuation level having a continuous impedance range. The control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the attenuation level of the attenuation circuit. The temperature compensating attenuator includes a temperature compensating circuit that compensates for variations in operation of the attenuation circuit due to a temperature change.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: March 24, 2015
    Assignee: RF Micro Devices, Inc.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Patent number: 8633754
    Abstract: In one embodiment, a variable attenuator is disclosed having an attenuation circuit and a control circuit. The attenuation circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with a variable impedance level having a continuous impedance range. In this manner, the control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the variable attenuation level of the variable attenuator.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 21, 2014
    Assignee: RF Micro Devices, Inc.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Patent number: 8461898
    Abstract: In one embodiment, a temperature compensating attenuator is disclosed having an attenuation circuit and a control circuit. The temperature compensating attenuator circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with an impedance attenuation level having a continuous impedance range. The control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the attenuation level of the attenuation circuit. The temperature compensating attenuator includes a temperature compensating circuit that compensates for variations in operation of the attenuation circuit due to a temperature change.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: June 11, 2013
    Assignee: RF Micro Devices, Inc.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Patent number: 8386986
    Abstract: In one embodiment, a temperature controlled attenuator is disclosed having an attenuation circuit and a control circuit. The attenuation circuit includes a series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with a variable impedance level having a continuous impedance range. Furthermore, the temperature controlled attenuator includes a temperature controlled circuit that adjusts an attenuation level of the attenuation circuit in accordance to an operating temperature. In this manner, the attenuation level of the temperature controlled attenuator is temperature dependent.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: February 26, 2013
    Assignee: RF Micro Devices, Inc.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Patent number: 8334718
    Abstract: In one embodiment, a variable attenuator is disclosed having an attenuation circuit and a control circuit. The attenuation circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with a variable impedance level having a continuous impedance range. In this manner, the control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the variable attenuation level of the variable attenuator.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: December 18, 2012
    Assignee: RF Micro Devices, Inc.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Publication number: 20120280738
    Abstract: In one embodiment, a variable attenuator is disclosed having an attenuation circuit and a control circuit. The attenuation circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with a variable impedance level having a continuous impedance range. In this manner, the control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the variable attenuation level of the variable attenuator.
    Type: Application
    Filed: July 13, 2012
    Publication date: November 8, 2012
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Publication number: 20110148503
    Abstract: In one embodiment, a temperature controlled attenuator is disclosed having an attenuation circuit and a control circuit. The attenuation circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with a variable impedance level having a continuous impedance range. Furthermore, the temperature controlled attenuator includes a temperature controlled circuit that adjusts the attenuation level of the attenuation circuit in accordance to an operating temperature. In this manner, the attenuation level of the temperature controlled attenuator is temperature dependent.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 23, 2011
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Publication number: 20110148502
    Abstract: In one embodiment, a temperature compensating attenuator is disclosed having an attenuation circuit and a control circuit. The temperature compensating attenuator circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with an impedance attenuation level having a continuous impedance range. The control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the attenuation level of the attenuation circuit. The temperature compensating attenuator includes a temperature compensating circuit that compensates for variations in operation of the attenuation circuit due to a temperature change.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 23, 2011
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
  • Publication number: 20110148501
    Abstract: In one embodiment, a variable attenuator is disclosed having an attenuation circuit and a control circuit. The attenuation circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with a variable impedance level having a continuous impedance range. In this manner, the control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the variable attenuation level of the variable attenuator.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 23, 2011
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa