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).
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Patent number: 8988127Abstract: 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: GrantFiled: January 23, 2013Date of Patent: March 24, 2015Assignee: RF Micro Devices, Inc.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Patent number: 8633754Abstract: 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: GrantFiled: July 13, 2012Date of Patent: January 21, 2014Assignee: RF Micro Devices, Inc.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Patent number: 8461898Abstract: 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: GrantFiled: December 23, 2010Date of Patent: June 11, 2013Assignee: RF Micro Devices, Inc.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Patent number: 8386986Abstract: 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: GrantFiled: December 23, 2010Date of Patent: February 26, 2013Assignee: RF Micro Devices, Inc.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Patent number: 8334718Abstract: 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: GrantFiled: December 23, 2010Date of Patent: December 18, 2012Assignee: RF Micro Devices, Inc.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Publication number: 20120280738Abstract: 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: ApplicationFiled: July 13, 2012Publication date: November 8, 2012Applicant: RF MICRO DEVICES, INC.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Publication number: 20110148502Abstract: 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: ApplicationFiled: December 23, 2010Publication date: June 23, 2011Applicant: RF MICRO DEVICES, INC.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Publication number: 20110148503Abstract: 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: ApplicationFiled: December 23, 2010Publication date: June 23, 2011Applicant: RF MICRO DEVICES, INC.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa
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Publication number: 20110148501Abstract: 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: ApplicationFiled: December 23, 2010Publication date: June 23, 2011Applicant: RF MICRO DEVICES, INC.Inventors: Marcus Granger-Jones, Brad Nelson, Ed Franzwa