Patents by Inventor Geoff Hatcher
Geoff Hatcher 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: 8577312Abstract: A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated current envelope signal. A controller receives power level data and generates attenuation control data for the voltage envelope signal and the current envelope signal. A detector receives the voltage envelope signal and the current envelope signal and generates a control signal based on the greater of the voltage envelope signal and the current envelope signal. A power amplifier level controller receives the control signal and generates a power amplifier level control signal.Type: GrantFiled: September 13, 2011Date of Patent: November 5, 2013Assignee: Axiom Microdevices, Inc.Inventors: Rahul Magoon, Scott D. Kee, Seyed-Ali Hajimiri, Ichiro Aoki, Roberto Aparicio Joo, Morten Damgaard, Setu Mohta, Geoff Hatcher
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Patent number: 8285239Abstract: A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.Type: GrantFiled: October 4, 2011Date of Patent: October 9, 2012Assignee: Axiom Microdevices, Inc.Inventors: Alyosha Molnar, Morten Damgaard, Geoff Hatcher, Kenneth Chai-en Wu
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Publication number: 20120027137Abstract: A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.Type: ApplicationFiled: October 4, 2011Publication date: February 2, 2012Inventors: Alyosha Molnar, Morten Damgaard, Geoff Hatcher, Kenneth Chai-en Wu
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Publication number: 20120001693Abstract: A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated current envelope signal. A controller receives power level data and generates attenuation control data for the voltage envelope signal and the current envelope signal. A detector receives the voltage envelope signal and the current envelope signal and generates a control signal based on the greater of the voltage envelope signal and the current envelope signal. A power amplifier level controller receives the control signal and generates a power amplifier level control signal.Type: ApplicationFiled: September 13, 2011Publication date: January 5, 2012Inventors: Rahul Magoon, Scott D. Kee, Seyed-Ali Hajimiri, Ichiro Aoki, Roberto Aparicio Joo, Morten Damgaard, Setu Mohta, Geoff Hatcher
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Patent number: 8032102Abstract: A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.Type: GrantFiled: January 15, 2008Date of Patent: October 4, 2011Assignee: Axiom Microdevices, Inc.Inventors: Alyosha Molnar, Morten Damgaard, Geoff Hatcher, Kenneth Chai-en Wu
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Patent number: 8019292Abstract: A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated current envelope signal. A controller receives power level data and generates attenuation control data for the voltage envelope signal and the current envelope signal. A detector receives the voltage envelope signal and the current envelope signal and generates a control signal based on the greater of the voltage envelope signal and the current envelope signal. A power amplifier level controller receives the control signal and generates a power amplifier level control signal.Type: GrantFiled: July 11, 2007Date of Patent: September 13, 2011Assignee: Axiom Microdevices, Inc.Inventors: Rahul Magoon, Scott Kee, Seyed-Ali Hajimiri, Ichiro Aoki, Roberto Aparicio Joo, Morten Damgaard, Setu Mohta, Geoff Hatcher
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Patent number: 7576614Abstract: A phase-locked loop (PLL) is disclosed. One embodiment, among others, includes a PLL that provides a control signal and a square root module configured to receive state information, the state information corresponding to tuning information, the square root module further configured to multiply the control signal by a square root of the state information to provide a tuning signal.Type: GrantFiled: June 27, 2007Date of Patent: August 18, 2009Assignee: Skyworks Solutions, Inc.Inventors: Jeffrey Zachan, Geoff Hatcher, Edward Youssoufian
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Publication number: 20090181633Abstract: A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.Type: ApplicationFiled: January 15, 2008Publication date: July 16, 2009Inventors: Alyosha Molnar, Morten Damgaard, Geoff Hatcher, Kenneth Chai-en Wu
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Publication number: 20090015324Abstract: A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated current envelope signal. A controller receives power level data and generates attenuation control data for the voltage envelope signal and the current envelope signal. A detector receives the voltage envelope signal and the current envelope signal and generates a control signal based on the greater of the voltage envelope signal and the current envelope signal. A power amplifier level controller receives the control signal and generates a power amplifier level control signal.Type: ApplicationFiled: July 11, 2007Publication date: January 15, 2009Inventors: Rahul Magoon, Scott D. Kee, Seyed-Ali Hajimiri, Ichiro Aoki, Roberto Aparicio Joo, Morten Damgaard, Setu Mohta, Geoff Hatcher
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Publication number: 20070247200Abstract: A phase-locked loop (PLL) is disclosed. One embodiment, among others, includes a PLL that provides a control signal and a square root module configured to receive state information, the state information corresponding to tuning information, the square root module further configured to multiply the control signal by a square root of the state information to provide a tuning signal.Type: ApplicationFiled: June 27, 2007Publication date: October 25, 2007Applicant: SKYWORKS SOLUTIONS, INC.Inventors: Jeffrey Zachan, Geoff Hatcher, Edward Youssoufian
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Patent number: 7256629Abstract: A phase-locked loop (PLL) is disclosed. One embodiment, among others, includes a PLL that provides a control signal and a square root module configured to receive state information, the state information corresponding to tuning information, the square root module further configured to multiply the control signal by a square root of the state information to provide a tuning signal.Type: GrantFiled: March 21, 2006Date of Patent: August 14, 2007Assignee: Skyworks, Solutions, Inc.Inventors: Jeffrey M. Zachan, Geoff Hatcher, Edward Youssoufian
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Patent number: 7138839Abstract: A phase-locked loop (PLL) is disclosed. One embodiment, among others, includes a PLL that provides a control current and varies the control current in proportion to an inverse of N squared. N is the ratio of the output frequency of the PLL system to the reference frequency of the PLL system. The varying of the control current compensates for bandwidth changes of the PLL system.Type: GrantFiled: May 19, 2004Date of Patent: November 21, 2006Assignee: Skyworks Solutions, Inc.Inventors: Jeffrey M. Zachan, Geoff Hatcher, Edward Youssoufian
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Publication number: 20060158235Abstract: A phase-locked loop (PLL) is disclosed. One embodiment, among others, includes a PLL that provides a control signal and a square root module configured to receive state information, the state information corresponding to tuning information, the square root module further configured to multiply the control signal by a square root of the state information to provide a tuning signal.Type: ApplicationFiled: March 21, 2006Publication date: July 20, 2006Inventors: Jeffrey Zachan, Geoff Hatcher, Edward Youssoufian
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Publication number: 20050258907Abstract: A phase-locked loop (PLL) is disclosed. One embodiment, among others, includes a PLL that provides a control current and varies the control current in proportion to an inverse of N squared. N is the ratio of the output frequency of the PLL system to the reference frequency of the PLL system. The varying of the control current compensates for bandwidth changes of the PLL system.Type: ApplicationFiled: May 19, 2004Publication date: November 24, 2005Inventors: Jeffrey Zachan, Geoff Hatcher, Edward Youssoufian