Patents by Inventor Djordje Preradovic
Djordje Preradovic 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: 20240015692Abstract: A method for robust indoor positioning systems includes receiving, from each of a plurality of anchors, a signal based on which a tag distance corresponding to a distance of a tag from the respective anchor is identified, and determining a plurality of anchor sets from the plurality of anchors. The method further includes, for each of the anchor sets, determining, based on the tag distances corresponding to anchors in the anchor set, a preliminary tag location corresponding to the respective anchor set; and determining a final tag location based on the preliminary tag locations.Type: ApplicationFiled: June 30, 2023Publication date: January 11, 2024Inventors: Hossein Najaf-Zadeh, Jae Son, Mark Trayer, Djordje Preradovic, Gabriel Montenegro, José Korneluk
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Publication number: 20230371072Abstract: A wireless communication system for a vehicle includes a wireless access point (AP), an ultra-wide band (UWB) system, a communication link, a controller, and a vehicle system. The UWB system is in communication with the wireless AP via a communication link. The wireless communication system is operable to detect, via the wireless AP, a request for localized wireless communication. The UWB system requests the wireless AP to generate a clear to send (CTS) transmission, which includes selecting an ultra-wide band (UWB) channel, mapping the UWB channel to a plurality of WiFi channels, and transmitting, by the wireless AP, the CTS transmission to each of the plurality of WiFi channels. The UWB system then transmits a UWB message.Type: ApplicationFiled: May 13, 2022Publication date: November 16, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Aaron Adler, Lakshmi V. Thanayankizil, Djordje Preradovic
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Patent number: 11696101Abstract: An exemplary method for indexing transceivers uses wireless ranging functionality. The method includes determining a ranging distance between at least one transceiver and each other transceiver in a plurality of transceivers, determining a transceiver spatial distribution based on the ranging distance between at least one transceiver and each other transceiver in the plurality of transceivers, and indexing each transceiver by applying the transceiver spatial distribution to a spatial distribution map using an electronic control unit (ECU).Type: GrantFiled: December 8, 2021Date of Patent: July 4, 2023Assignee: Continental Automotive Systems, Inc.Inventors: Sudhir Khed, Djordje Preradovic, Akshay Choudhari, Aaron Adler, Julio Kota
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Publication number: 20230179972Abstract: An exemplary method for indexing transceivers uses wireless ranging functionality. The method includes determining a ranging distance between at least one transceiver and each other transceiver in a plurality of transceivers, determining a transceiver spatial distribution based on the ranging distance between at least one transceiver and each other transceiver in the plurality of transceivers, and indexing each transceiver by applying the transceiver spatial distribution to a spatial distribution map using an electronic control unit (ECU).Type: ApplicationFiled: December 8, 2021Publication date: June 8, 2023Inventors: Sudhir Khed, Djordje Preradovic, Akshay Choudhari, Aaron Adler, Julio Kota
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Patent number: 11607915Abstract: A method of measuring a tread depth of a tire includes transmitting at least one radio wave from a transmitter through a tread of the tire. The at least one radio wave reflected from a road surface is received with a receiver. The tread depth of the tire is determined based on comparing the at least one radio wave reflected from the road surface with the at least one radio wave from the transmitter.Type: GrantFiled: January 22, 2020Date of Patent: March 21, 2023Assignee: Continental Automotive Systems, Inc.Inventors: Djordje Preradovic, Aaron James Adler, Akshay Choudhari
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Patent number: 11576049Abstract: A method of operating a communicator includes operating a first receiver of a plurality of receivers on a first channel of a series of channels. A second receiver of the plurality of receivers is operated on a second channel of the series of channels. A third receiver of the plurality of receivers is operated on a third channel of the series of channels. The second receiver that operates on the second channel includes a reception overlap period of about 25% to about 75% with the first receiver that operates on the first channel and a reception overlap period of about 25% to about 75% with the third receiver that operates on the third channel.Type: GrantFiled: December 22, 2020Date of Patent: February 7, 2023Assignee: Continental Automotive Systems, Inc.Inventors: Aaron James Adler, Djordje Preradovic, Akshay Choudhari, Sudhir Khed
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Patent number: 11498373Abstract: A system and method include, among other things, providing at least one vehicle transceiver and at least one tire information sensor for a tire on a vehicle and wirelessly communicating between the at least one vehicle transceiver and the at least one tire information sensor via a signal. A phase shift in the signal is determined and a physical distance between the at least one vehicle transceiver and the at least one tire information sensor is determined based on the phase shift. A position of the at least one tire information sensor within the vehicle is then determined based on the physical distance.Type: GrantFiled: December 30, 2019Date of Patent: November 15, 2022Assignee: Continental Automotive Systems, Inc.Inventors: Aaron Adler, Djordje Preradovic, Akshay Choudhari
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Patent number: 11427157Abstract: A vehicle access system includes an identification device with a first transceiver, a short-range transceiver and a processor configured to control the first transceiver and the short-range transceiver to activate the first transceiver only when a distance measurement between the identification device and a vehicle is within a predefined range as determined utilizing the short-range transceiver.Type: GrantFiled: December 27, 2019Date of Patent: August 30, 2022Assignee: Continental Automotive Systems, Inc.Inventors: Djordje Preradovic, Aaron Adler, David Reimus, Akshay Choudhari
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Patent number: 11218857Abstract: A method for phase ranging of a personal area network device includes receiving an initial personal area network packet and storing header information contained in the initial personal area network packet. A phase shift is measured utilizing information transmitted in place of the stored header information in at least one incoming personal area network packet. A range of the personal area network device is calculated based on the phase shift of the information transmitted in place of the stored header information in an incoming personal area network packet.Type: GrantFiled: December 23, 2019Date of Patent: January 4, 2022Assignee: Continental Automotive Systems, Inc.Inventors: Aaron Adler, Djordje Preradovic, David Reimus, Akshay Choudhari
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Publication number: 20210199793Abstract: A method of determining a distance between a master device and a remote device includes communicating bi-directionally between a transceiver of a master device and a transceiver of a remote device with Bluetooth Low Energy communication, performing a radio frequency ranging sequence in between an advertising interval or a connection interval of the Bluetooth Low Energy communication, and employing the radio frequency ranging sequence to determine a distance between the master device and the remote device.Type: ApplicationFiled: December 27, 2019Publication date: July 1, 2021Inventors: Aaron J. Adler, Djordje Preradovic, David J. Reimus, Akshay Choudhari
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Publication number: 20210199749Abstract: A system and method includes, among other things, providing at least three vehicle transceivers, communicating with each vehicle transceiver via a remote device, and estimating a distance to the remote device for each vehicle transceiver. Estimated distances from the at least three vehicle transceivers and trilateration are used to determine an actual distance of the remote device from the vehicle.Type: ApplicationFiled: December 30, 2019Publication date: July 1, 2021Inventors: Aaron Adler, Djordje Preradovic, Akshay Choudhari
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Publication number: 20210195427Abstract: A method of operating a communicator includes operating a first receiver of a plurality of receivers on a first channel of a series of channels. A second receiver of the plurality of receivers is operated on a second channel of the series of channels. A third receiver of the plurality of receivers is operated on a third channel of the series of channels. The second receiver that operates on the second channel includes a reception overlap period of about 25% to about 75% with the first receiver that operates on the first channel and a reception overlap period of about 25% to about 75% with the third receiver that operates on the third channel.Type: ApplicationFiled: December 22, 2020Publication date: June 24, 2021Inventors: Aaron James Adler, Djordje Preradovic, Akshay Choudhari, Sudhir Khed
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Publication number: 20210188016Abstract: A method of measuring a tread depth of a tire includes transmitting at least one radio wave from a transmitter through a tread of the tire. The at least one radio wave reflected from a road surface is received with a receiver. The tread depth of the tire is determined based on comparing the at least one radio wave reflected from the road surface with the at least one radio wave from the transmitter.Type: ApplicationFiled: January 22, 2020Publication date: June 24, 2021Inventors: Djordje Preradovic, Aaron James Adler, Akshay Choudhari
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Publication number: 20210051457Abstract: A method for phase ranging of a personal area network device includes receiving an initial personal area network packet and storing header information contained in the initial personal area network packet. A phase shift is measured utilizing information transmitted in place of the stored header information in at least one incoming personal area network packet. A range of the personal area network device is calculated based on the phase shift of the information transmitted in place of the stored header information in an incoming personal area network packet.Type: ApplicationFiled: December 23, 2019Publication date: February 18, 2021Inventors: Aaron Adler, Djordje Preradovic, David Reimus, Akshay Choudhari
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Publication number: 20200384951Abstract: A vehicle access system includes an identification device with a first transceiver, a short-range transceiver and a processor configured to control the first transceiver and the short-range transceiver to activate the first transceiver only when a distance measurement between the identification device and a vehicle is within a predefined range as determined utilizing the short-range transceiver.Type: ApplicationFiled: December 27, 2019Publication date: December 10, 2020Inventors: Djordje Preradovic, Aaron Adler, David Reimus, Akshay Choudhari
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Publication number: 20200384815Abstract: A system and method include, among other things, providing at least one vehicle transceiver and at least one tire information sensor for a tire on a vehicle and wirelessly communicating between the at least one vehicle transceiver and the at least one tire information sensor via a signal. A phase shift in the signal is determined and a physical distance between the at least one vehicle transceiver and the at least one tire information sensor is determined based on the phase shift. A position of the at least one tire information sensor within the vehicle is then determined based on the physical distance.Type: ApplicationFiled: December 30, 2019Publication date: December 10, 2020Inventors: Aaron Adler, Djordje Preradovic, Akshay Choudhari
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Publication number: 20200209344Abstract: A vehicle object detection system according to an example of the present disclosure at least two BLE modules configured to communicate with each other and measure RSSI values between the at least two BLE modules. The system also includes a main controller configured to communicate with the at least two BLE modules to receive the measured RSSI values between the at least two BLE modules. At least one of the main controller or at least one of the at least two BLE modules are configured to evaluate said measured RSSI values to detect an object between the at least two BLE modules in response to a change in said measured RSSI values.Type: ApplicationFiled: May 14, 2019Publication date: July 2, 2020Inventors: Aaron Adler, Djordje Preradovic