Patents by Inventor Eamon Nash
Eamon Nash 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: 11152965Abstract: A pair of programmable state machines may be included in a transmitter integrated circuit of a scanner (e.g. a body scanner) to control the sub-circuits of the transmitter integrated circuit. The first programmable state machine may be used to control the signal processor of the transmitter that facilitates generation of a signal to be transmitted at a target, such as a user to be scanned. The second programmable state machine may be used to control the transmitter's selection of a transmission channel for transmitting the signal in which provides the signal to be transmitted to an antenna. Further, the receiver integrated circuit of the scanner may include a similar pair of programmable state machines for controlling the receive signal processor and receiver of the receiver integrated circuit. The inclusion of the state machines can reduce both the scan time and the circuit complexity of the scanner.Type: GrantFiled: August 10, 2020Date of Patent: October 19, 2021Assignee: Analog Devices, Inc.Inventors: Christopher E Hay, Eamon Nash
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Publication number: 20210314871Abstract: A reader apparatus with software-controller power exciter, and methods for operating the same to wirelessly interrogate an environmental or structural sensor are disclosed. Some aspects of the application are directed to a reader apparatus that transmits high power for a fast cold start of a sensor and subsequently switch to low power transmission in response to an indication signal received from the sensor indicating that a state of charge of the sensor has reached a threshold value such that high power transmission is no longer necessary, thereby extending battery life of the reader apparatus.Type: ApplicationFiled: April 3, 2020Publication date: October 7, 2021Applicant: Analog Devices, Inc.Inventors: Yosef Stein, Eamon Nash
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Publication number: 20200373953Abstract: A pair of programmable state machines may be included in a transmitter integrated circuit of a scanner (e.g. a body scanner) to control the sub-circuits of the transmitter integrated circuit. The first programmable state machine may be used to control the signal processor of the transmitter that facilitates generation of a signal to be transmitted at a target, such as a user to be scanned. The second programmable state machine may be used to control the transmitter's selection of a transmission channel for transmitting the signal in which provides the signal to be transmitted to an antenna. Further, the receiver integrated circuit of the scanner may include a similar pair of programmable state machines for controlling the receive signal processor and receiver of the receiver integrated circuit. The inclusion of the state machines can reduce both the scan time and the circuit complexity of the scanner.Type: ApplicationFiled: August 10, 2020Publication date: November 26, 2020Inventors: Christopher E Hay, Eamon Nash
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Patent number: 10804942Abstract: A pair of programmable state machines may be included in a transmitter integrated circuit of a scanner (e.g. a body scanner) to control the sub-circuits of the transmitter integrated circuit. The first programmable state machine may be used to control the signal processor of the transmitter that facilitates generation of a signal to be transmitted at a target, such as a user to be scanned. The second programmable state machine may be used to control the transmitter's selection of a transmission channel for transmitting the signal in which provides the signal to be transmitted to an antenna. Further, the receiver integrated circuit of the scanner may include a similar pair of programmable state machines for controlling the receive signal processor and receiver of the receiver integrated circuit. The inclusion of the state machines can reduce both the scan time and the circuit complexity of the scanner.Type: GrantFiled: May 24, 2018Date of Patent: October 13, 2020Assignee: Analog Devices, Inc.Inventors: Christopher E Hay, Eamon Nash
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Patent number: 10771097Abstract: A pair of programmable state machines may be included in a transmitter integrated circuit of a scanner (e.g. a body scanner) to control the sub-circuits of the transmitter integrated circuit. The first programmable state machine may be used to control the signal processor of the transmitter that facilitates generation of a signal to be transmitted at a target, such as a user to be scanned. The second programmable state machine may be used to control the transmitter's selection of a transmission channel for transmitting the signal in which provides the signal to be transmitted to an antenna. Further, the receiver integrated circuit of the scanner may include a similar pair of programmable state machines for controlling the receive signal processor and receiver of the receiver integrated circuit. The inclusion of the state machines can reduce both the scan time and the circuit complexity of the scanner.Type: GrantFiled: May 24, 2018Date of Patent: September 8, 2020Assignee: Analog Devices, Inc.Inventors: Christopher E Hay, Eamon Nash
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Publication number: 20190363741Abstract: A pair of programmable state machines may be included in a transmitter integrated circuit of a scanner (e.g. a body scanner) to control the sub-circuits of the transmitter integrated circuit. The first programmable state machine may be used to control the signal processor of the transmitter that facilitates generation of a signal to be transmitted at a target, such as a user to be scanned. The second programmable state machine may be used to control the transmitter's selection of a transmission channel for transmitting the signal in which provides the signal to be transmitted to an antenna. Further, the receiver integrated circuit of the scanner may include a similar pair of programmable state machines for controlling the receive signal processor and receiver of the receiver integrated circuit. The inclusion of the state machines can reduce both the scan time and the circuit complexity of the scanner.Type: ApplicationFiled: May 24, 2018Publication date: November 28, 2019Inventors: Christopher E. Hay, Eamon Nash
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Patent number: 9641146Abstract: Apparatus and methods are disclosed related to radio frequency (RF) power detection. One such apparatus includes a directional coupler, an RF switch, and an RF power detector. The RF switch can selectively change coupling between the directional coupler and the RF power detector. This can enable accurate power detection based on a ratio of power levels, without factory calibration or laser trimming.Type: GrantFiled: May 12, 2010Date of Patent: May 2, 2017Assignee: Analog Devices, Inc.Inventors: Eamon Nash, Dale Wilson, Carlos Calvo
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Patent number: 9379675Abstract: Aspects of this disclosure relate to protecting a circuit, such as an amplifier, from transient overdrive events and/or average overdrive events. In one embodiment, an indication of average power, such as root mean squared (RMS) power of a radio frequency (RF) signal, can be compared to a first threshold and an indication of a peak RF power can be compared to a second threshold. When the indication of average power exceeds the first threshold, an average overdrive event can be detected. When the indication of peak power exceeds the second threshold, a peak overdrive event can be detected. If either a transient overdrive event or an average overdrive event is detected, a circuit, such as an amplifier, can be protected.Type: GrantFiled: May 20, 2014Date of Patent: June 28, 2016Assignee: Analog Devices GlobalInventors: Eamon Nash, Mingming Zhao, Ovidiu Vasile Balaj, Peadar Antony Forbes, Claire Masterson
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Publication number: 20150236658Abstract: Aspects of this disclosure relate to protecting a circuit, such as an amplifier, from transient overdrive events and/or average overdrive events. In one embodiment, an indication of average power, such as root mean squared (RMS) power of a radio frequency (RF) signal, can be compared to a first threshold and an indication of a peak RF power can be compared to a second threshold. When the indication of average power exceeds the first threshold, an average overdrive event can be detected. When the indication of peak power exceeds the second threshold, a peak overdrive event can be detected. If either a transient overdrive event or an average overdrive event is detected, a circuit, such as an amplifier, can be protected.Type: ApplicationFiled: May 20, 2014Publication date: August 20, 2015Inventors: Eamon Nash, Mingming Zhao, Ovidiu Vasile Balaj, Peadar Antony Forbes, Claire Masterson
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Publication number: 20110279192Abstract: Apparatus and methods are disclosed related to radio frequency (RF) power detection. One such apparatus includes a directional coupler, an RF switch, and an RF power detector. The RF switch can selectively change coupling between the directional coupler and the RF power detector. This can enable accurate power detection based on a ratio of power levels, without factory calibration or laser trimming.Type: ApplicationFiled: May 12, 2010Publication date: November 17, 2011Applicant: Analog Devices, Inc.Inventors: Eamon Nash, Dale Wilson, Carlos Calvo
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Patent number: 7260367Abstract: Described is a closed-loop power detector/controller for wireless systems employing a non-constant amplitude envelope modulation scheme. Any AM component in the feedback signal resulting from non-constant amplitude envelope signals is eliminated via feed-forward cancellation of the envelope signal. Generally, a signal representative of the AM variation in the non-constant amplitude envelope signals prior to amplification is obtained. This AM variation signal is then used to cancel any AM component in the feedback signal resulting from the non-constant envelope to create a power amplifier control signal without any AM variation, only the desired ramp profile.Type: GrantFiled: January 23, 2002Date of Patent: August 21, 2007Assignee: Analog Devices, Inc.Inventors: Robert J. McMorrow, Eamon Nash
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Patent number: 7106604Abstract: An RMS-to-DC converter system is disclosed. The system includes a variable gain amplifier having transfer function ripple that receives an input signal and provides an amplifier output signal, a detector that receives the amplifier output signal and provides a detector output signal, an error amplifier that receives the detector output signal and provides an error amplifier output signal having an AC component, and a feedback circuit coupled to the error amplifier output signal and to the variable gain amplifier for providing a feedback signal to the variable gain amplifier that includes an AC component for reducing transfer function ripple of the RMS-to-DC converter system.Type: GrantFiled: February 9, 2004Date of Patent: September 12, 2006Assignee: Analog Devices, Inc.Inventor: Eamon Nash
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Publication number: 20040223349Abstract: An RMS-to-DC converter system is disclosed. The system includes a variable gain amplifier having transfer function ripple that receives an input signal and provides an amplifier output signal, a detector that receives the amplifier output signal and provides a detector output signal, an error amplifier that receives the detector output signal and provides an error amplifier output signal having an AC component, and a feedback circuit coupled to the error amplifier output signal and to the variable gain amplifier for providing a feedback signal to the variable gain amplifier that includes an AC component for reducing transfer function ripple of the RMS-to-DC converter system.Type: ApplicationFiled: February 9, 2004Publication date: November 11, 2004Inventor: Eamon Nash
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Publication number: 20030139153Abstract: Described is a closed-loop power detector/controller for wireless systems employing a non-constant amplitude envelope modulation scheme. Any AM component in the feedback signal resulting from non-constant amplitude envelope signals is eliminated via feed-forward cancellation of the envelope signal. Generally, a signal representative of the AM variation in the non-constant amplitude envelope signals prior to amplification is obtained. This AM variation signal is then used to cancel any AM component in the feedback signal resulting from the non-constant envelope to create a power amplifier control signal without any AM variation, only the desired ramp profile.Type: ApplicationFiled: January 23, 2002Publication date: July 24, 2003Inventors: Robert J. McMorrow, Eamon Nash