Patents by Inventor Ashkan Vaziri
Ashkan Vaziri 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: 10925518Abstract: The present invention relates to a light-weight, small and portable ambulatory sensor for measuring and monitoring a person's physical activity. Based on these measurements and computations, the invented system quantifies the subject's physical activity, quantifies the subject's gait, determines his or her risk of falling, and automatically detects falls. The invention combines the features of portability, high autonomy, and real-time computational capacity. High autonomy is achieved by using only accelerometers, which have low power consumption rates as compared with gyroscope-based systems. Accelerometer measurements, however, contain significant amounts of noise, which must be removed before further analysis. The invention therefore uses novel time-frequency filters to denoise the measurements, and in conjunction with biomechanical models of human movement, perform the requisite computations, which may also be done in real time.Type: GrantFiled: February 5, 2018Date of Patent: February 23, 2021Assignee: BBY SOLUTIONS, INC.Inventors: Bijan Najafi, Ashkan Vaziri, Ali-Reza Boloori
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Publication number: 20180348025Abstract: Embodiments of the present invention provide programmable materials capable of real-time, significant adjustment in their mechanical response. When combined with autonomous sensing and control strategies, these materials can be used in a new series of structural components with enhanced static and dynamic efficiency. An embodiment of the present invention provides an apparatus comprising an array of one or more unit cells, formed from a material, each cell defining a shape; and links coupled to the unit cells, at least a subset of the links enabling changing of an elasticity of at least a subset of the unit cells or at least a sub- array of the unit cells as a function of a state of the at least a subset of the links, the state including ON and OFF states.Type: ApplicationFiled: April 15, 2016Publication date: December 6, 2018Inventors: Babak Haghpanah Jahromi, Ashkan Vaziri
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Patent number: 9901290Abstract: The present invention relates to a light-weight, small and portable ambulatory sensor for measuring and monitoring a person's physical activity. Based on these measurements and computations, the invented system quantifies the subject's physical activity, quantifies the subject's gait, determines his or her risk of falling, and automatically detects falls. The invention combines the features of portability, high autonomy, and real-time computational capacity. High autonomy is achieved by using only accelerometers, which have low power consumption rates as compared with gyroscope-based systems. Accelerometer measurements, however, contain significant amounts of noise, which must be removed before further analysis. The invention therefore uses novel time-frequency filters to denoise the measurements, and in conjunction with biomechanical models of human movement, perform the requisite computations, which may also be done in real time.Type: GrantFiled: March 16, 2015Date of Patent: February 27, 2018Assignee: BIOSENSICS LLCInventors: Bijan Najafi, Ashkan Vaziri, Ali-Reza Boloori
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Patent number: 9601962Abstract: Described is a wind turbine, a generator and a rotor housing for a generator with an external rotor, the rotor housing comprising a support structure, wherein the support structure is cylindrical shaped, a cone and a ring. The ring and the cone are attached together at an inner side of the cone in a horizontal plane, forming a front part of the rotor housing. The support structure is attached to the cone at a front end of the support structure, forming a side part of the rotor housing, and the support structure is formed out of segmented support structure parts. Also disclosed is the method for making the rotor housing.Type: GrantFiled: July 1, 2014Date of Patent: March 21, 2017Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Anders Sylvester Bjerg, Thomas Soerensen, Ashkan Vaziri Tehrani
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Publication number: 20160100776Abstract: The present invention relates to a light-weight, small and portable ambulatory sensor for measuring and monitoring a person's physical activity. Based on these measurements and computations, the invented system quantifies the subject's physical activity, quantifies the subject's gait, determines his or her risk of falling, and automatically detects falls. The invention combines the features of portability, high autonomy, and real-time computational capacity. High autonomy is achieved by using only accelerometers, which have low power consumption rates as compared with gyroscope-based systems. Accelerometer measurements, however, contain significant amounts of noise, which must be removed before further analysis. The invention therefore uses novel time-frequency filters to denoise the measurements, and in conjunction with biomechanical models of human movement, perform the requisite computations, which may also be done in real time.Type: ApplicationFiled: March 16, 2015Publication date: April 14, 2016Inventors: Bijan Najafi, Ashkan Vaziri, Ali-Reza Boloori
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Publication number: 20150256039Abstract: An outer structure of a generator is provided. A generator includes a rotor and a stator, whereby the generator is a radial flux electrical machine. An outer part of the generator is the stator or the rotor, whereby the outer part of the generator includes a support structure. The support structure is modular and the modules are arranged in rows. The modules are arranged in a staggered manner, so that a module in a first row of modules is connected to two modules of a second row abutting on the first row.Type: ApplicationFiled: September 17, 2013Publication date: September 10, 2015Inventors: Torben Boye Kristensen, Silvio Semmer, Thomas Soerensen, Ashkan Vaziri Tehrani, Klaus Thaarup
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Patent number: 9005141Abstract: The present invention relates to a light-weight, small and portable ambulatory sensor for measuring and monitoring a person's physical activity. Based on these measurements and computations, the invented system quantifies the subject's physical activity, quantifies the subject's gait, determines his or her risk of falling, and automatically detects falls. The invention combines the features of portability, high autonomy, and real-time computational capacity. High autonomy is achieved by using only accelerometers, which have low power consumption rates as compared with gyroscope-based systems. Accelerometer measurements, however, contain significant amounts of noise, which must be removed before further analysis. The invention therefore uses novel time-frequency filters to denoise the measurements, and in conjunction with biomechanical models of human movement, perform the requisite computations, which may also be done in real time.Type: GrantFiled: June 22, 2012Date of Patent: April 14, 2015Assignee: Biosensics, L.L.C.Inventors: Bijan Najafi, Ashkan Vaziri, Ali-Reza Boloori
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Publication number: 20150061295Abstract: Described is a wind turbine, a generator and a rotor housing for a generator with an external rotor, the rotor housing comprising a support structure, wherein the support structure is cylindrical shaped, a cone and a ring. The ring and the cone are attached together at an inner side of the cone in a horizontal plane, forming a front part of the rotor housing. The support structure is attached to the cone at a front end of the support structure, forming a side part of the rotor housing, and the support structure is formed out of segmented support structure parts. Also disclosed is the method for making the rotor housing.Type: ApplicationFiled: July 1, 2014Publication date: March 5, 2015Inventors: ANDERS SYLVESTER BJERG, THOMAS SOERENSEN, ASHKAN VAZIRI TEHRANI
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Patent number: 8206325Abstract: The present invention relates to a light-weight, small and portable ambulatory sensor for measuring and monitoring a person's physical activity. Based on these measurements and computations, the invented system quantifies the subject's physical activity, quantifies the subject's gait, determines his or her risk of falling, and automatically detects falls. The invention combines the features of portability, high autonomy, and real-time computational capacity. High autonomy is achieved by using only accelerometers, which have low power consumption rates as compared with gyroscope-based systems. Accelerometer measurements, however, contain significant amounts of noise, which must be removed before further analysis. The invention therefore uses novel time-frequency filters to denoise the measurements, and in conjunction with biomechanical models of human movement, perform the requisite computations, which may also be done in real time.Type: GrantFiled: October 12, 2008Date of Patent: June 26, 2012Assignee: Biosensics, L.L.C.Inventors: Bijan Najafi, Ashkan Vaziri, Ali-Reza Boloori
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Publication number: 20120076630Abstract: A wind turbine component handling apparatus with a docking device, a lifting device, and a turning device is provided. A method for turning a wind turbine component is also provided. A plurality of pins is mounted to the wind turbine component. The wind turbine component is positioned at a support apparatus such that each pin rests in a cradle element of the support apparatus. The docking device is pushed in the horizontal direction such that openings in the docking device engage the pins. The docking device is lifted, wherein the wind turbine component is lifted by the pins and the docking device is rotated about a horizontal axis, wherein the wind turbine component is rotated about the horizontal axis by the pins. Then, the docking device is lowered until the pins mounted to the wind turbine component rest in the cradle elements of the support apparatus.Type: ApplicationFiled: September 7, 2011Publication date: March 29, 2012Inventor: Ashkan Vaziri Tehrani
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Publication number: 20080026329Abstract: A system and method for producing a plurality of controlled surface irregularities, such as wrinkles, is provided. The system includes a polymeric substrate. An irradiation source is positioned to provide a beam on desired areas of the polymeric substrate. The surface irregularities appear on the exposed region by controlling the relative motion of the polymeric substrate and the irradiation source when scanning the exposed region.Type: ApplicationFiled: July 23, 2007Publication date: January 31, 2008Inventors: Ashkan Vaziri, Myoung-Woon Moon, Sang Hoon Lee, Jeong Yun Sun, Kyu Hwan Oh