Patents by Inventor Seth D. Cohen
Seth D. Cohen 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: 20240129142Abstract: Technologies are provided for clockless physically unclonable functions (PUFs) in reconfigurable devices. Embodiments of the disclosed technologies include processing circuitry configured to perform numerous operations. The operations can include receiving a challenge continuous pulse signal, and generating a response continuous pulse signal by iteratively extending the challenge continuous pulse signal in time-domain. In some configurations, the iteratively extending includes generating a next continuous pulse signal by operating on a prior continuous pulse signal according to a stretching function, and generating a second next continuous pulse width signal by operating on the next continuous pulse signal according to a folding function.Type: ApplicationFiled: September 29, 2023Publication date: April 18, 2024Inventor: Seth D. Cohen
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Patent number: 11811954Abstract: Technologies are provided for clockless physically unclonable functions (PUFs) in reconfigurable devices. Embodiments of the disclosed technologies include processing circuitry configured to perform numerous operations. The operations can include receiving a challenge continuous pulse signal, and generating a response continuous pulse signal by iteratively extending the challenge continuous pulse signal in time-domain. In some configurations, the iteratively extending includes generating a next continuous pulse signal by operating on a prior continuous pulse signal according to a stretching function, and generating a second next continuous pulse width signal by operating on the next continuous pulse signal according to a folding function.Type: GrantFiled: January 10, 2022Date of Patent: November 7, 2023Assignee: Kratos SRE, Inc.Inventor: Seth D. Cohen
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Patent number: 11733364Abstract: Backend components for noise radar and techniques for operation of those components are provided. Some embodiments include noise radar apparatuses. A noise radar apparatus may include a first unit that generates a random signal or a broadband noise signal using asynchronous logic gates constituting the first unit. The noise radar apparatus also may include a second unit that generates a reference sequence using the generated random signal or the generated broadband noise signal. The second unit comprises at least one tapped delay line formed by second asynchronous logic gates having sampling functionality and storage functionality. The noise radar apparatus may further include a third unit that receives a return signal correlates the return signal and the reference sequence in nearly real-time using third asynchronous logic gates constituting the third unit.Type: GrantFiled: May 21, 2021Date of Patent: August 22, 2023Assignees: Kratos SRE, Inc., The University of Alabama in HuntsvilleInventors: Seth D. Cohen, Aubrey Beal
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Patent number: 11726433Abstract: Technologies are provided for time-to-digital conversion without reliance on a clocking signal. The technologies include a clockless TDC apparatus that can map continuous pulse-widths to binary bits represented via an iterative chaotic map (e.g., tent map, Bernoulli shift map, or similar). The clockless TDC apparatus can convert separated pulses to a single asynchronous digital pulse that turns on when a sensor detects a first pulse and turns off when the sensor detects a second pulse. The asynchronous digital pulse can be iteratively stretched and folded in time according to the chaotic map. The clockless TDC can generate a binary sequence that represents symbolic dynamics of the chaotic map. The process can be implemented by using an iterative time delay component until a precision of the binary output is either satisfied or overwhelmed by noise or other structural fluctuations of the TDC apparatus.Type: GrantFiled: July 6, 2022Date of Patent: August 15, 2023Assignee: Kratos SRE, Inc.Inventor: Seth D. Cohen
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Publication number: 20230004124Abstract: Technologies are provided for time-to-digital conversion without reliance on a clocking signal. Some embodiments of the technologies include a clockless TDC apparatus that can map continuous pulse-widths to binary bits represented via an iterative chaotic map (e.g., tent map, Bernoulli shift map, or similar). The clockless TDC apparatus can convert separated pulses to a single asynchronous digital pulse that turns on when a sensor detects a first pulse and turns off when the sensor detects a second pulse. The asynchronous digital pulse can be iteratively stretched and folded in time according to the chaotic map. The clockless TDC can generate a binary sequence that represents symbolic dynamics of the chaotic map. The process can be implemented by using an iterative time delay component until a precision of the binary output is either satisfied or overwhelmed by noise or other structural fluctuations of the TDC apparatus.Type: ApplicationFiled: July 6, 2022Publication date: January 5, 2023Inventor: Seth D. Cohen
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Publication number: 20220416769Abstract: Technologies are provided for generation of programmable pulse signals using inverse chaotic maps, without reliance on a clocking signal. Some embodiments of the technologies include an apparatus that can receive a sequence of bits having a defined number of bits, where the sequence of bits represent a desired continuous pulse signal having a programmable width in time-domain. The apparatus can also can receive a precursor continuous pulse signal having an arbitrary width in time-domain that fits within the dynamic range of the apparatus. The apparatus can generate the desired continuous pulse signal by transforming the precursor continuous pulse signal using the sequence of bits and an inverse chaotic map.Type: ApplicationFiled: May 11, 2022Publication date: December 29, 2022Inventor: Seth D. Cohen
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Publication number: 20220353095Abstract: Technologies are provided for clockless physically unclonable functions (PUFs) in reconfigurable devices. Embodiments of the disclosed technologies include processing circuitry configured to perform numerous operations. The operations can include receiving a challenge continuous pulse signal, and generating a response continuous pulse signal by iteratively extending the challenge continuous pulse signal in time-domain. In some configurations, the iteratively extending includes generating a next continuous pulse signal by operating on a prior continuous pulse signal according to a stretching function, and generating a second next continuous pulse width signal by operating on the next continuous pulse signal according to a folding function.Type: ApplicationFiled: January 10, 2022Publication date: November 3, 2022Inventor: Seth D. Cohen
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Patent number: 11415947Abstract: Technologies are provided for time-to-digital conversion without reliance on a clocking signal. The technologies include a clockless TDC apparatus that can map continuous pulse-widths to binary bits represented via an iterative chaotic map (e.g., tent map, Bernoulli shift map, or similar). The clockless TDC apparatus can convert separated pulses to a single asynchronous digital pulse that turns on when a sensor detects a first pulse and turns off when the sensor detects a second pulse. The asynchronous digital pulse can be iteratively stretched and folded in time according to the chaotic map. The clockless TDC can generate a binary sequence that represents symbolic dynamics of the chaotic map. The process can be implemented by using an iterative time delay component until a precision of the binary output is either satisfied or overwhelmed by noise or other structural fluctuations of the TDC apparatus.Type: GrantFiled: June 10, 2019Date of Patent: August 16, 2022Assignee: Kratos SRE, Inc.Inventor: Seth D. Cohen
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Patent number: 11381224Abstract: Technologies are provided for generation of programmable pulse signals using inverse chaotic maps, without reliance on a clocking signal. Some embodiments of the technologies include an apparatus that can receive a sequence of bits having a defined number of bits, where the sequence of bits represent a desired continuous pulse signal having a programmable width in time-domain. The apparatus can also can receive a precursor continuous pulse signal having an arbitrary width in time-domain that fits within the dynamic range of the apparatus. The apparatus can generate the desired continuous pulse signal by transforming the precursor continuous pulse signal using the sequence of bits and an inverse chaotic map.Type: GrantFiled: June 10, 2019Date of Patent: July 5, 2022Assignee: SOUTHERN RESEARCH INSTITUTEInventor: Seth D. Cohen
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Patent number: 11265178Abstract: Technologies are provided for clockless physically unclonable functions (PUFs) in reconfigurable devices. Embodiments of the disclosed technologies include processing circuitry configured to perform numerous operations. The operations can include receiving a challenge continuous pulse signal, and generating a response continuous pulse signal by iteratively extending the challenge continuous pulse signal in time-domain. In some configurations, the iteratively extending includes generating a next continuous pulse signal by operating on a prior continuous pulse signal according to a stretching function, and generating a second next continuous pulse width signal by operating on the next continuous pulse signal according to a folding function.Type: GrantFiled: June 10, 2019Date of Patent: March 1, 2022Assignee: SOUTHERN RESEARCH INSTITUTEInventor: Seth D. Cohen
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Publication number: 20210364617Abstract: Backend components for noise radar and techniques for operation of those components are provided. Some embodiments include noise radar apparatuses. A noise radar apparatus may include a first unit that generates a random signal or a broadband noise signal using asynchronous logic gates constituting the first unit. The noise radar apparatus also may include a second unit that generates a reference sequence using the generated random signal or the generated broadband noise signal. The second unit comprises at least one tapped delay line formed by second asynchronous logic gates having sampling functionality and storage functionality. The noise radar apparatus may further include a third unit that receives a return signal correlates the return signal and the reference sequence in nearly real-time using third asynchronous logic gates constituting the third unit.Type: ApplicationFiled: May 21, 2021Publication date: November 25, 2021Inventors: Seth D. Cohen, Aubrey Beal
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Publication number: 20210247722Abstract: Technologies are provided for time-to-digital conversion without reliance on a clocking signal. Some embodiments of the technologies include a clockless TDC apparatus that can map continuous pulse-widths to binary bits represented via an iterative chaotic map (e.g., tent map, Bernoulli shift map, or similar). The clockless TDC apparatus can convert separated pulses to a single asynchronous digital pulse that turns on when a sensor detects a first pulse and turns off when the sensor detects a second pulse. The asynchronous digital pulse can be iteratively stretched and folded in time according to the chaotic map. The clockless TDC can generate a binary sequence that represents symbolic dynamics of the chaotic map. The process can be implemented by using an iterative time delay component until a precision of the binary output is either satisfied or overwhelmed by noise or other structural fluctuations of the TDC apparatus.Type: ApplicationFiled: June 10, 2019Publication date: August 12, 2021Inventor: Seth D. Cohen
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Publication number: 20210250018Abstract: Technologies are provided for generation of programmable pulse signals using inverse chaotic maps, without reliance on a clocking signal. Some embodiments of the technologies include an apparatus that can receive a sequence of bits having a defined number of bits, where the sequence of bits represent a desired continuous pulse signal having a programmable width in time-domain. The apparatus can also can receive a precursor continuous pulse signal having an arbitrary width in time-domain that fits within the dynamic range of the apparatus. The apparatus can generate the desired continuous pulse signal by transforming the precursor continuous pulse signal using the sequence of bits and an inverse chaotic map.Type: ApplicationFiled: June 10, 2019Publication date: August 12, 2021Inventor: Seth D. Cohen