Patents by Inventor Nikolai Kozlovski
Nikolai Kozlovski 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: 9817014Abstract: A method is provided for determining a number of revolutions per minute (RPM) of a rotating object. The method includes transmitting interrogation signals at a regular period from a fixed antenna positioned adjacent to the rotating object. The method also includes transmitting echo signals from a sensor antenna positioned on the rotating object, in response to the interrogation signals. The method also includes counting a number of echo signals detected by the fixed antenna, during one revolution of the object. The method also includes determining the RPM of the rotating object based on the number of response signals and the regular period of the signals. A system is also provided for determining the number of revolutions per minute (RPM) of the rotating object.Type: GrantFiled: June 3, 2014Date of Patent: November 14, 2017Assignee: Mnemonics, Inc.Inventor: Nikolai Kozlovski
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Patent number: 9172423Abstract: Methods, systems and devices for correlator time delay extraction for wireless acoustic wave devices. A receiver receives an analog signal as a sum of plural different analog coded signals each having a different time delay and matched filters corresponding to the acoustic devices is used to extract the time delay to recover the original plural different analog coded signals. In an embodiment the acoustic devices generate orthogonal-frequency codes signals with block-time-diversity to reduce the cross-correlation “noise” due to multi-codes. The time diversity spreads the tags ensemble energy in time, thereby reducing the time energy density. An estimate of the delay time using the passband frequency phase slope, or in the time domain by using the correlation peak, is obtained.Type: GrantFiled: May 2, 2012Date of Patent: October 27, 2015Assignee: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski
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Patent number: 9097054Abstract: Methods and systems for passive wireless surface acoustic wave devices for orthogonal frequency coded devices to implement ON-OFF sensors reusing orthogonal frequency code and distinguishing between ON and OFF states using additional PN sequence and on/off switches producing multi-level coding as well as external stimuli for switching and identification of a closure system. An embodiment adds a level of diversity by adding a dibit to each surface acoustic wave devices, thus providing four different possible coding states. The PN on-off coding can be with the dibit for coding in a multi-tag system.Type: GrantFiled: January 27, 2014Date of Patent: August 4, 2015Assignee: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski
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Publication number: 20150068305Abstract: A method is provided for determining a number of revolutions per minute (RPM) of a rotating object. The method includes transmitting interrogation signals at a regular period from a fixed antenna positioned adjacent to the rotating object. The method also includes transmitting echo signals from a sensor antenna positioned on the rotating object, in response to the interrogation signals. The method also includes counting a number of echo signals detected by the fixed antenna, during one revolution of the object. The method also includes determining the RPM of the rotating object based on the number of response signals and the regular period of the signals. A system is also provided for determining the number of revolutions per minute (RPM) of the rotating object.Type: ApplicationFiled: June 3, 2014Publication date: March 12, 2015Inventor: Nikolai Kozlovski
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Publication number: 20140137473Abstract: Methods and systems for passive wireless surface acoustic wave devices for orthogonal frequency coded devices to implement ON-OFF sensors reusing orthogonal frequency code and distinguishing between ON and OFF states using additional PN sequence and on/off switches producing multi-level coding as well as external stimuli for switching and identification of a closure system. An embodiment adds a level of diversity by adding a dibit to each surface acoustic wave devices, thus providing four different possible coding states. The PN on-off coding can be with the dibit for coding in a multi-tag system.Type: ApplicationFiled: January 27, 2014Publication date: May 22, 2014Applicant: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski
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Patent number: 8669871Abstract: Methods and systems for passive wireless surface acoustic wave devices for orthogonal frequency coded devices to implement ON-OFF sensors reusing orthogonal frequency code and distinguishing between ON and OFF states using additional PN sequence and on/off switches producing multi-level coding as well as external stimuli for switching and identification of a closure system. An embodiment adds a level of diversity by adding a dibit to each surface acoustic wave devices, thus providing four different possible coding states. The PN on-off coding can be with the dibit for coding in a multi-tag system.Type: GrantFiled: June 2, 2011Date of Patent: March 11, 2014Assignee: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski
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Patent number: 8169320Abstract: Methods and systems for coding SAW OFC devices to mitigate code collisions in a wireless multi-tag system. Each device producing plural stepped frequencies as an OFC signal with a chip offset delay to increase code diversity. A method for assigning a different OFC to each device includes using a matrix based on the number of OFCs needed and the number chips per code, populating each matrix cell with OFC chip, and assigning the codes from the matrix to the devices. The asynchronous passive multi-tag system includes plural surface acoustic wave devices each producing a different OFC signal having the same number of chips and including a chip offset time delay, an algorithm for assigning OFCs to each device, and a transceiver to transmit an interrogation signal and receive OFC signals in response with minimal code collisions during transmission.Type: GrantFiled: February 18, 2011Date of Patent: May 1, 2012Assignee: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski
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Publication number: 20110285510Abstract: Methods and systems for passive wireless surface acoustic wave devices for orthogonal frequency coded devices to implement ON-OFF sensors reusing orthogonal frequency code and distinguishing between ON and OFF states using additional PN sequence and on/off switches producing multi-level coding as well as external stimuli for switching and identification of a closure system. An embodiment adds a level of diversity by adding a dibit to each surface acoustic wave devices, thus providing four different possible coding states. The PN on-off coding can be with the dibit for coding in a multi-tag system.Type: ApplicationFiled: June 2, 2011Publication date: November 24, 2011Applicant: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski
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Publication number: 20110135026Abstract: Methods and systems for coding SAW OFC devices to mitigate code collisions in a wireless multi-tag system. Each device producing plural stepped frequencies as an OFC signal with a chip offset delay to increase code diversity. A method for assigning a different OCF to each device includes using a matrix based on the number of OFCs needed and the number chips per code, populating each matrix cell with OFC chip, and assigning the codes from the matrix to the devices. The asynchronous passive multi-tag system includes plural surface acoustic wave devices each producing a different OFC signal having the same number of chips and including a chip offset time delay, an algorithm for assigning OFCs to each device, and a transceiver to transmit an interrogation signal and receive OFC signals in response with minimal code collisions during transmission.Type: ApplicationFiled: February 18, 2011Publication date: June 9, 2011Inventors: Donald Malocha, Nikolai Kozlovski
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Patent number: 7952482Abstract: Methods and systems for coding SAW OFC devices to mitigate code collisions in a wireless multi-tag system. Each device producing plural stepped frequencies as an OFC signal with a chip offset delay to increase code diversity. A method for assigning a different OCF to each device includes using a matrix based on the number of OFCs needed and the number chips per code, populating each matrix cell with OFC chip, and assigning the codes from the matrix to the devices. The asynchronous passive multi-tag system includes plural surface acoustic wave devices each producing a different OFC signal having the same number of chips and including a chip offset time delay, an algorithm for assigning OFCs to each device, and a transceiver to transmit an interrogation signal and receive OFC signals in response with minimal code collisions during transmission.Type: GrantFiled: November 13, 2009Date of Patent: May 31, 2011Assignee: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski
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Publication number: 20100117804Abstract: Methods and systems for coding SAW OFC devices to mitigate code collisions in a wireless multi-tag system. Each device producing plural stepped frequencies as an OFC signal with a chip offset delay to increase code diversity. A method for assigning a different OCF to each device includes using a matrix based on the number of OFCs needed and the number chips per code, populating each matrix cell with OFC chip, and assigning the codes from the matrix to the devices. The asynchronous passive multi-tag system includes plural surface acoustic wave devices each producing a different OFC signal having the same number of chips and including a chip offset time delay, an algorithm for assigning OFCs to each device, and a transceiver to transmit an interrogation signal and receive OFC signals in response with minimal code collisions during transmission.Type: ApplicationFiled: November 13, 2009Publication date: May 13, 2010Applicant: University of Central Florida Research Foundation, Inc.Inventors: Donald Malocha, Nikolai Kozlovski