Patents by Inventor Vincent J Urick
Vincent J Urick 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: 9768876Abstract: A method of suppressing polarization-dependent loss in a signal. A constant-intensity, analog, optical signal with modulating polarization is transmitted through an optical communications link. The constant-intensity, analog, optical signal with modulating polarization includes an analog radio frequency signal impressed upon a polarization-modulated, laser signal. A polarization-dependent loss of the communications link is determined, the polarization-dependent loss inducing an induced phase shift in the constant-intensity, analog, optical signal with modulating polarization. The constant-intensity, analog, optical signal with modulating polarization is re-oriented using a polarization transformer so as to suppress the induced phase shift.Type: GrantFiled: July 27, 2016Date of Patent: September 19, 2017Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Meredith N. Hutchinson, Nicholas Frigo, Vincent J. Urick
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Interference suppression based on power-dependent transfer function of angle-modulated optical links
Patent number: 9654217Abstract: Systems and method are provided to for suppressing interference signals in optical systems, without prior knowledge of the type of location of the interferers, while maintaining a linear response to small signals of interest (SOI). By exploiting the unique power (or voltage) dependent transmission function of an externally angle-modulated photonic link, embodiments of the present disclosure are configured to provide strong, wideband interference suppression without requiring detailed knowledge of the interfering signal.Type: GrantFiled: February 18, 2016Date of Patent: May 16, 2017Inventors: Jason D. McKinney, Vincent J. Urick, John F. Diehl, Keith J. Williams -
INTERFERENCE SUPPRESSION BASED ON POWER-DEPENDENT TRANSFER FUNCTION OF ANGLE-MODULATED OPTICAL LINKS
Publication number: 20160248503Abstract: Systems and method are provided to for suppressing interference signals in optical systems, without prior knowledge of the type of location of the interferers, while maintaining a linear response to small signals of interest (SOI). By exploiting the unique power (or voltage) dependent transmission function of an externally angle-modulated photonic link, embodiments of the present disclosure are configured to provide strong, wideband interference suppression without requiring detailed knowledge of the interfering signal.Type: ApplicationFiled: February 18, 2016Publication date: August 25, 2016Inventors: Jason D. McKinney, Vincent J. Urick, John F. Diehl, Keith J. Williams -
Patent number: 9172471Abstract: A system for suppressing even-order distortion in a photonic link includes a laser for providing laser light to a first input of a Mach-Zehnder modulator (MZM), where the MZM has a second input for receiving an RF input signal, a third input for applying a DC bias voltage to the MZM, and an optical signal output. A dc-voltage-biased photodiode has an input, coupled to the MZM optical signal output, and a modulated RF signal output. The MZM DC bias voltage is set at a value to generate an even-order distortion amplitude substantially equal to an even-order distortion amplitude from the photodiode and 180 degrees out of phase so as to substantially cancel the photodiode even-order distortion. The invention provides the cancellation of photodiode even-order distortion via predisortion linearization with a MZM biased slightly away from quadrature, employing a single fiber run and a single photodiode. The invention provides an improvement in carrier-to-intermodulation ratio (CIR) upwards of 40 dB.Type: GrantFiled: October 3, 2013Date of Patent: October 27, 2015Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Meredith N. Hutchinson, Joseph M. Singley, Vincent J Urick, Jason D. McKinney, Keith J Williams
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Publication number: 20140270807Abstract: A system for suppressing even-order distortion in a photonic link includes a laser for providing laser light to a first input of a Mach-Zehnder modulator (MZM), where the MZM has a second input for receiving an RF input signal, a third input for applying a DC bias voltage to the MZM, and an optical signal output. A dc-voltage-biased photodiode has an input, coupled to the MZM optical signal output, and a modulated RF signal output. The MZM DC bias voltage is set at a value to generate an even-order distortion amplitude substantially equal to an even-order distortion amplitude from the photodiode and 180 degrees out of phase so as to substantially cancel the photodiode even-order distortion. The invention provides the cancellation of photodiode even-order distortion via predisortion linearization with a MZM biased slightly away from quadrature, employing a single fiber run and a single photodiode. The invention provides an improvement in carrier-to-intermodulation ratio (CIR) upwards of 40 dB.Type: ApplicationFiled: October 3, 2013Publication date: September 18, 2014Inventors: Meredith N. Hutchinson, Joseph M. Singley, Vincent J Urick, Jason D. McKinney, Keith J Williams
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Patent number: 8824901Abstract: A multi-mode optoelectronic oscillator (MM-OEO) includes an OEO cavity having an input for receiving an RF signal and an RF output. The OEO cavity includes a) a first laser having a first laser output, a second laser having a second laser output, b) a modulator having i) a first input coupled to the first laser output, ii) a second input coupled to the second laser output, iii) a third input, iv) a first modulator output, and v) a second modulator output, c) a semiconductor optical amplifier (SOA) having an input coupled to the first modulator output and having an SOA amplified output, d) a photodetector coupled to the SOA amplified output and having an output, and e) a coupler having an input coupled to the photodetector output and having a first output coupled to the third modulator input and a second output, whereby an amplified RF signal is produced at the OEO RF output.Type: GrantFiled: September 14, 2012Date of Patent: September 2, 2014Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Preetpaul S Devgan, Vincent J Urick, Keith J Williams
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Patent number: 8607672Abstract: A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows with a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt. The tool may be comprised of a separate driver and one or more sockets.Type: GrantFiled: November 3, 2011Date of Patent: December 17, 2013Assignee: Lisle CorporationInventors: Vincent J. Urick, Scotty R. Kurtz
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Publication number: 20130256514Abstract: A multi-mode optoelectronic oscillator (MM-OEO) includes an OEO cavity having an input for receiving an RF signal and an RF output. The OEO cavity includes a) a first laser having a first laser output, a second laser having a second laser output, b) a modulator having i) a first input coupled to the first laser output, ii) a second input coupled to the second laser output, iii) a third input, iv) a first modulator output ,and v) a second modulator output, c) a semiconductor optical amplifier (SOA) having an input coupled to the first modulator output and having an SOA amplified output, d) a photodetector coupled to the SOA amplified output and having an output, and e) a coupler having an input coupled to the photodetector output and having a first output coupled to the third modulator input and a second output, whereby an amplified RF signal is produced at the OEO RF output.Type: ApplicationFiled: September 14, 2012Publication date: October 3, 2013Inventors: Preetpaul S. Devgan, Vincent J. Urick, Keith J. Williams
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Patent number: 8272299Abstract: A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows from a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt.Type: GrantFiled: March 1, 2010Date of Patent: September 25, 2012Assignee: Lisle CorporationInventor: Vincent J. Urick, Sr.
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Patent number: 8224188Abstract: A method and system for processing analog optical signals to produce a single RF output free from even-order harmonic distortion. Two analog optical signals of different wavelengths ?1, ?2 are input into a dual-output Mach-Zehnder modulator (MZM), where one wavelength input is high-biased and one wavelength is low-biased. The complementary high- and low-biased wavelengths are output from each arm of the MZM to a multiplexer, which filters out the unwanted high- or low-biased wavelengths from each MZM arm so that both wavelengths are low-biased or high-biased. The signals are passed to a pair of photodiodes, and the photocurrents from the photodiodes are differenced to produce the final RF output. Because of the complementary phase differences between the two low- or high-biased signals generating the photocurrent, all components of the photocurrent except the fundamental and odd-order harmonics cancel each other, resulting in a high-quality RF output free from harmonic distortion.Type: GrantFiled: January 15, 2010Date of Patent: July 17, 2012Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Preetpaul S Devgan, Vincent J Urick, Keith J Williams, John F. Diehl, Christopher E. Sunderman
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Publication number: 20120055293Abstract: A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows with a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt. The tool may be comprised of a separate driver and one or more sockets.Type: ApplicationFiled: November 3, 2011Publication date: March 8, 2012Applicant: Lisle CorporationInventors: Vincent J. Urick, Scotty R. Kurtz
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Publication number: 20110209587Abstract: A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows from a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt.Type: ApplicationFiled: March 1, 2010Publication date: September 1, 2011Inventor: Vincent J. Urick, SR.
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Publication number: 20100266289Abstract: A method and system for processing analog optical signals to produce a single RF output free from even-order harmonic distortion. Two analog optical signals of different wavelengths ?1, ?2 are input into a dual-output Mach-Zehnder modulator (MZM), where one wavelength input is high-biased and one wavelength is low-biased. The complementary high- and low-biased wavelengths are output from each arm of the MZM to a multiplexer, which filters out the unwanted high- or low-biased wavelengths from each MZM arm so that both wavelengths are low-biased or high-biased. The signals are passed to a pair of photodiodes, and the photocurrents from the photodiodes are differenced to produce the final RF output. Because of the complementary phase differences between the two low- or high-biased signals generating the photocurrent, all components of the photocurrent except the fundamental and odd-order harmonics cancel each other, resulting in a high-quality RF output free from harmonic distortion.Type: ApplicationFiled: January 15, 2010Publication date: October 21, 2010Applicant: The Government of the US, as represented by the Secretary of the NavyInventors: Preetpaul S. Devgan, Vincent J. Urick, Keith J. Williams, John F. Diehl, Christopher E. Sunderman