Patents by Inventor Ozdal Boyraz
Ozdal Boyraz 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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Publication number: 20230131584Abstract: Various examples for multi-tone continuous wave detection and ranging are disclosed herein. In some embodiments, an initial signal is generated using initial radio frequency (RF) tones, and is emitted as a multi-tone continuous wave signal. The initial signal is reflected from a target and received as a reflected signal. Resultant RF tones, including a frequency, a phase and a power, are determined from the reflected signal in a frequency domain. A frequency-domain sinusoidal wave is fitted to the resultant RF tones in the frequency domain, and a distance to the target is determined using a modulation of the frequency-domain sinusoidal wave. A phase processing algorithm is applied to generate the target distance and speed by triangulating the range information encoded in the backscattered RF tones.Type: ApplicationFiled: September 3, 2021Publication date: April 27, 2023Inventors: Mustafa Mert Bayer, Ozdal Boyraz
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Patent number: 11630189Abstract: Various examples for multi-tone continuous wave detection and ranging are disclosed herein. In some embodiments, an initial signal is generated using initial radio frequency (RF) tones, and is emitted as a multi-tone continuous wave signal. The initial signal is reflected from a target and received as a reflected signal. Resultant RF tones, including a frequency and a power, are determined from the reflected signal in a frequency domain. A frequency-domain sinusoidal wave is fitted to the resultant RF tones in the frequency domain, and a distance to the target is determined using a modulation of the frequency-domain sinusoidal wave.Type: GrantFiled: October 29, 2019Date of Patent: April 18, 2023Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Ozdal Boyraz, Rasul Torun
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Patent number: 11598672Abstract: The present invention features a novel design for a bolometric infrared detector focused on LWIR range for human body high-resolution temperature sensing. The present invention incorporates an efficient plasmonic absorber and VO2 nanobeam to facilitate improvement in both aspects—thermal resolution and spatial resolution. The present invention significantly improves the detectivity, NETD, and responsivity for a smaller form-factor detector active area.Type: GrantFiled: December 8, 2021Date of Patent: March 7, 2023Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Mohammad Wahiduzzaman Khan, Ozdal Boyraz, Jonathan Sullivan, Jaeho Lee, Ziqi Yu
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Publication number: 20220178756Abstract: The present invention features a novel design for a bolometric infrared detector focused on LWIR range for human body high-resolution temperature sensing, The present invention incorporates an efficient plasmonic absorber and VO2 nanobeam to facilitate improvement in both aspects—thermal resolution and spatial resolution. The present invention significantly improves the detectivity, NETD, and responsivity for a smaller form-factor detector active area.Type: ApplicationFiled: December 8, 2021Publication date: June 9, 2022Inventors: Mohammad Wahiduzzama Khan, Ozdal Boyraz, Jonathan Sullivan, Jaeho Lee, Ziqi Yu
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Publication number: 20210382164Abstract: Various examples for multi-tone continuous wave detection and ranging are disclosed herein. In some embodiments, an initial signal is generated using initial radio frequency (RF) tones, and is emitted as a multi-tone continuous wave signal. The initial signal is reflected from a target and received as a reflected signal. Resultant RF tones, including a frequency, a phase and a power, are determined from the reflected signal in a frequency domain. A frequency-domain sinusoidal wave is fitted to the resultant RF tones in the frequency domain, and a distance to the target is determined using a modulation of the frequency-domain sinusoidal wave. A phase processing algorithm is applied to generate the target distance and speed by triangulating the range information encoded in the backscattered RF tones.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Inventors: Mustafa Mert Bayer, Ozdal Boyraz
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Patent number: 11122425Abstract: A physical layer secret key generation scheme exploiting randomness of the road surface and driving behavior is described herein. A symmetric key generation scheme can be implemented in any existing V2V visible light communication. By analyzing and simulating numerous samples taken from NGSIM vehicle trajectory data, the natural driving behavior and road surface roughness can be exploited as a source of randomness to generate symmetric cryptographic security keys.Type: GrantFiled: July 12, 2019Date of Patent: September 14, 2021Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Imam Uz Zaman, Anthony Bahadir Lopez, Mohammad Abdullah Al Faruque, Ozdal Boyraz
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Patent number: 10903992Abstract: Point Optical Link communication security to help resolve the high resource requirements and lack of a trustworthy source of high randomness of existing communication security solutions is described herein. The scheme includes a novel model and a physical layer symmetric cryptographic key generation technique that focuses on exploiting the physical randomness manifested by the Polarization Mode Dispersion effect. This randomness makes it extremely difficult for an adversary to generate the same cryptographic keys as the communicating parties. 128 bit keys with low final mismatch rates (.ltoreq.10%) can be generated, which could easily be truncated for 64-bit and 32-bit keys if necessary.Type: GrantFiled: July 12, 2019Date of Patent: January 26, 2021Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Imam Uz Zaman, Anthony Bahadir Lopez, Mohammad Abdullah Al Faruque, Ozdal Boyraz
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Publication number: 20200150250Abstract: Various examples for multi-tone continuous wave detection and ranging are disclosed herein. In some embodiments, an initial signal is generated using initial radio frequency (RF) tones, and is emitted as a multi-tone continuous wave signal. The initial signal is reflected from a target and received as a reflected signal. Resultant RF tones, including a frequency and a power, are determined from the reflected signal in a frequency domain. A frequency-domain sinusoidal wave is fitted to the resultant RF tones in the frequency domain, and a distance to the target is determined using a modulation of the frequency-domain sinusoidal wave.Type: ApplicationFiled: October 29, 2019Publication date: May 14, 2020Inventors: Ozdal Boyraz, Rasul Torun
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Publication number: 20200021977Abstract: A physical layer secret key generation scheme exploiting randomness of the road surface and driving behavior is described herein. A symmetric key generation scheme can be implemented in any existing V2V visible light communication. By analyzing and simulating numerous samples taken from NGSIM vehicle trajectory data, the natural driving behavior and road surface roughness can be exploited as a source of randomness to generate symmetric cryptographic security keys.Type: ApplicationFiled: July 12, 2019Publication date: January 16, 2020Inventors: Imam Uz Zaman, Anthony Bahadir Lopez, Mohammad Abdullah Al Faruque, Ozdal Boyraz
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Publication number: 20200021433Abstract: Point Optical Link communication security to help resolve the high resource requirements and lack of a trustworthy source of high randomness of existing communication security solutions is described herein. The scheme includes a novel model and a physical layer symmetric cryptographic key generation technique that focuses on exploiting the physical randomness manifested by the PMD effect. This randomness made it extremely difficult for an adversary to generate the same cryptographic keys as the communicating parties. 128 bit keys with low final mismatch rates (?10%) were generated, which could easily be truncated for 64-bit and 32-bit keys if necessary.Type: ApplicationFiled: July 12, 2019Publication date: January 16, 2020Inventors: Imam Uz Zaman, Anthony Bahadir Lopez, Mohammad Abdullah Al Faruque, Ozdal Boyraz
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Patent number: 9726794Abstract: A high index contrast grating (HICG) structure is disclosed. The HICG structure includes plurality of gratings fabricated from a high refractive index layer. The high refractive index layer is situated over a low refractive index substrate, wherein the high refractive index layer is patterned after determining a period and a duty cycle of each of the plurality of gratings for a desired reflection phase profile based on a lookup table. The low refractive index substrate includes sapphire. The plurality of gratings includes polycrystalline or amorphous silicon. The HICG structure includes subwavelength gratings for incident wavelengths of equal to or greater than 2.5 microns. An exemplary method for forming the HICG structure is also disclosed.Type: GrantFiled: May 15, 2015Date of Patent: August 8, 2017Assignee: The Regents of the University of CaliforniaInventor: Ozdal Boyraz
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Publication number: 20150362641Abstract: A high index contrast grating (HICG) structure is disclosed. The HICG structure includes plurality of gratings fabricated from a high refractive index layer. The high refractive index layer is situated over a low refractive index substrate, wherein the high refractive index layer is patterned after determining a period and a duty cycle of each of the plurality of gratings for a desired reflection phase profile based on a lookup table. The low refractive index substrate includes sapphire. The plurality of gratings includes polycrystalline or amorphous silicon. The HICG structure includes subwavelength gratings for incident wavelengths of equal to or greater than 2.5 microns. An exemplary method for forming the HICG structure is also disclosed.Type: ApplicationFiled: May 15, 2015Publication date: December 17, 2015Inventor: Ozdal Boyraz
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Publication number: 20070297462Abstract: A silicon Raman laser that can be electrically switched or modulated and which demonstrates active mode-locking capabilities. The laser can be used with a more traditional glass fiber cavity, or can be fabricated on a single chip with a cavity, or a cascaded cavity, in which the chip fabrication is compatible with widely used silicon chip fabrication methods. The laser can be tuned by adjusting a source pump laser to produce specific output and operates at room temperature. Output is present in the near- and mid-infrared frequency range, and the laser can simultaneously produce output at the Stokes and at the anti-Stokes wavelengths.Type: ApplicationFiled: February 22, 2007Publication date: December 27, 2007Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Bahram Jalali, Ozdal Boyraz
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Patent number: 7254337Abstract: An optical communication system includes a plurality of optical add/drop multiplexers (OADMs). The plurality of OADMs includes at least five low distortion OADMs. Each OADM is coupled between spans of a multiple span communication link and operable to receive a multiple wavelength signal. The multiple wavelength signal includes a plurality of bands of wavelength signals each separated from other bands of wavelength signals by one or more guard-channels. In one embodiment, each of the at least five low distortion OADMs adds/drops a common first band of wavelengths to/from the multiple wavelength signal. In some embodiments, a spectral distortion associated with a pass-through wavelength signal spectrally adjacent to one of the one or more guard-channels is no more than three decibels after exiting the last of the plurality of low distortion OADMs. In those embodiments, the guard-channel is adjacent to the first band of wavelengths.Type: GrantFiled: May 16, 2006Date of Patent: August 7, 2007Assignee: Xtera Communications, Inc.Inventors: Mohammed N. Islam, Andrzej Kaminski, Herve A. Fevrier, Carl A. DeWilde, Ozdal Boyraz
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Patent number: 7068938Abstract: An optical communication system includes a plurality of optical add/drop multiplexers (OADMs). The plurality of OADMs includes at least five low distortion OADMs. Each OADM is coupled between spans of a multiple span communication link and operable to receive a multiple wavelength signal. The multiple wavelength signal includes a plurality of bands of wavelength signals each separated from other bands of wavelength signals by one or more guard-channels. In one embodiment, each of the at least five low distortion OADMs adds/drops a common first band of wavelengths to/from the multiple wavelength signal. In some embodiments, a spectral distortion associated with a pass-through wavelength signal spectrally adjacent to one of the one or more guard-channels is no more than three decibels after exiting the last of the plurality of low distortion OADMs. In those embodiments, the guard-channel is adjacent to the first band of wavelengths.Type: GrantFiled: March 15, 2002Date of Patent: June 27, 2006Assignee: Xtera Communications, Inc.Inventors: Mohammed N. Islam, Andrzej Kaminski, Herve A. Fevrier, Carl A. DeWilde, Ozdal Boyraz
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Patent number: 6744553Abstract: In one aspect of the invention, an apparatus operable to convert wavelengths of a plurality of optical signals includes a coupler operable to receive a pump signal and a plurality of input signals each input signal comprising at least one wavelength different than the wavelengths of others of the plurality of input optical signals. The apparatus further includes an optical medium operable to receive the pump signal and the plurality of input signals from the couplet, wherein the pump signal and each of the plurality of input signals are synchronized to overlap at least partially during at least a part of the time spent traversing the optical medium to facilitate generation of a plurality of converted wavelength signals each comprising a wavelength that is different than the wavelengths of at least some of the plurality of input signals. Various embodiments can result in low cross-talk and/or low polarization sensitivity.Type: GrantFiled: June 20, 2001Date of Patent: June 1, 2004Assignee: Xtera Communications, Inc.Inventors: Mohammed N. Islam, Ozdal Boyraz, Carl A. Dewilde
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Patent number: 6603910Abstract: Method and system are disclosed for stable, multi-wavelength continuous wave (CW) generation using fiber-based supercontinuum and spectrum-slicing of its longitudinal modes. The continuum generated is coherent and stable, making it an attractive alternative as a spectrally-sliced source for continuous, multiple wavelength channels. A 140 nm wide supercontinuum with a 10 GHz repetition rate is generated in <30 meters of fiber. To obtain CW channels with 40 GHz spacing, time-domain multiplexing and longitudinal mode slicing are utilized. To obtain stable, continuous wave operation, short-fiber supercontinuum generation and a pulse interleaving method are utilized. The invention may be utilized as a broadband wavelength-division multiplexed source.Type: GrantFiled: April 30, 2002Date of Patent: August 5, 2003Assignee: The Regents of the University of MichiganInventors: Mohammed N. Islam, Ozdal Boyraz, Jaeyoun Kim
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Publication number: 20020131693Abstract: Method and system are disclosed for stable, multi-wavelength continuous wave (CW) generation using fiber-based supercontinuum and spectrum-slicing of its longitudinal modes. The continuum generated is coherent and stable, making it an attractive alternative as a spectrally-sliced source for continuous, multiple wavelength channels. A 140 nm wide supercontinuum with a 10 GHz repetition rate is generated in <30 meters of fiber. To obtain CW channels with 40 GHz spacing, time-domain multiplexing and longitudinal mode slicing are utilized. To obtain stable, continuous wave operation, short-fiber supercontinuum generation and a pulse interleaving method are utilized. The invention may be utilized as a broadband wavelength-division multiplexed source.Type: ApplicationFiled: April 30, 2002Publication date: September 19, 2002Applicant: The Regents of the University of MichiganInventors: Mohammed N. Islam, Ozdal Boyraz, Jaeyoun Kim
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Patent number: 6381391Abstract: Method and system are disclosed for stable, multi-wavelength continuous wave (CW) generation using fiber-based supercontinuum and spectrum-slicing of its longitudinal modes. The continuum generated is coherent and stable, making it an attractive alternative as a spectrally-sliced source for continuous, multiple wavelength channels. A 140 nm wide supercontinuum with a 10 GHz repetition rate is generated in <30 meters of fiber. To obtain CW channels with 40 GHz spacing, time-domain multiplexing and longitudinal mode slicing are utilized. To obtain stable, continuous wave operation, short-fiber supercontinuum generation and a pulse interleaving method are utilized. The invention may be utilized as a broadband wavelength-division multiplexed source.Type: GrantFiled: December 3, 1999Date of Patent: April 30, 2002Assignee: The Regents of The University of MichiganInventors: Mohammed N. Islam, Ozdal Boyraz, Jaeyoun Kim