Patents by Inventor Tariqul Islam
Tariqul Islam 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: 11329373Abstract: A planar antenna includes a radiator and a ground plane, where the radiator is formed on the ground plane. The radiator includes a printed microstrip line. The radiator includes a human face-shaped radiator pattern printed on a side of the substrate. The human face-shaped radiator pattern has an elliptical head portion, two eye portions with printed eyeball portions, two ear portions, and a mouth portion. The printed microstrip line connects to the human face-shaped radiator pattern. The ground plane includes first, second, and third circular defect areas printed on back side of the substrate. The first and second circular defect areas have the same diameter, while the third circular defect area has a diameter smaller than the first and second circular defect areas. The third circular defect area is closer to an end surface of the ground plane than the first and second circular defect areas.Type: GrantFiled: October 22, 2021Date of Patent: May 10, 2022Assignee: King Abdulaziz UniversityInventors: Md Mottahir Alam, Rezaul Azim, Mohammad Tariqul Islam, Asif Irshad Khan, Ibrahim M. Mehedi
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Publication number: 20220102012Abstract: Systems and methods are described for agent-based simulation of each individual's movements in order to monitor the propagation of a disease. An agent-based simulation model has been exemplarily constructed, which is mainly comprised of two parts: student mobility model and disease propagation model. In the student mobility model, movements of students are modeled based on the GIS map (viz. routes, distances) and their daily schedules (e.g. dorms and classrooms/buildings). The disease propagation model represents students' health status (viz. susceptible, pre-symptomatic, asymptomatic, quarantine, isolation, and recovered) based on different factors such as the number of infected students attending the class or living in a dorm, classroom/dorm features (e.g. size, humidity, ventilation), probabilities of disease transmissions (e.g.Type: ApplicationFiled: September 30, 2021Publication date: March 31, 2022Inventors: Young-Jun Son, Saurabh Jain, Bijoy Dripta Barua Chowdhury, Md Tariqul Islam, Yijie Chen
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Publication number: 20220093275Abstract: Systems and methods are disclosed for spatially and temporally mapping safer and riskier and wellbeing areas based on perceived safety/risk and wellbeing, related to perceived viral mitigating health behaviors, known built environment wellbeing features, and predictively modelling movement through locations, and building environment features and operations contributing to viral spread.Type: ApplicationFiled: September 20, 2021Publication date: March 24, 2022Inventors: Esther Sternberg, Bo Yang, Shujuan Li, Matthias Mehl, Saurabh Jain, Bijoy Dripta Barua Chowdhury, Md Tariqul Islam, Young-Jun Son, Altaf Engineer, Philip Stoker, Yijie Chen
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Publication number: 20190194268Abstract: Multimeric defensin proteins (MD) containing at least two defensin peptides joined by a spacer peptide that is resistant to endoproteinase cleavage are disclosed along with compositions comprising the MD proteins and transgenic or genetically edited plants or microorganisms that express the MD to inhibit growth of pathogenic fungi. Such MD proteins, compositions, plants, and microorganisms can provide for improved inhibition of fungal growth when compared to a protein containing only one of the defensin peptides found in the MD.Type: ApplicationFiled: March 10, 2017Publication date: June 27, 2019Inventors: Dilip M Shah, Siva linga sasanka Velivelli, Kazi Tariqul Islam
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Patent number: 9778371Abstract: A system and method for determining transmission delay in a communications system. In some embodiments, satellite positioning information having System Frame Number (SFN) information may be received for a mobile device and observed time difference of arrival (OTDOA) measurements may be received for a mobile device. A location of the mobile device may be determined as a function of the received satellite positioning information. A Global Positioning System (GPS) time estimate may be determined as a function of the determined location of the mobile device. Transmission delay between a node serving the mobile device and an antenna serving the mobile device may be determined as a function of the received OTDOA measurements and determined GPS time estimate.Type: GrantFiled: August 19, 2016Date of Patent: October 3, 2017Assignee: CommScope Technologies LLCInventors: Ariful Hannan, Khalid W. Al-Mufti, Tariqul Islam
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Publication number: 20170045625Abstract: A system and method for determining transmission delay in a communications system. In some embodiments, satellite positioning information having System Frame Number (SFN) information may be received for a mobile device and observed time difference of arrival (OTDOA) measurements may be received for a mobile device. A location of the mobile device may be determined as a function of the received satellite positioning information. A Global Positioning System (GPS) time estimate may be determined as a function of the determined location of the mobile device. Transmission delay between a node serving the mobile device and an antenna serving the mobile device may be determined as a function of the received OTDOA measurements and determined GPS time estimate.Type: ApplicationFiled: August 19, 2016Publication date: February 16, 2017Inventors: Ariful Hannan, Khalid W. Al-Mufti, Tariqul Islam
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Patent number: 9538495Abstract: A system and method for estimating a location of a wireless device receiving signals from plural nodes of a communications network. A wireless device may be directed to transmit a first signal having one or more predetermined parameters. At one or more location measurement units (“LMU”) an uplink time of arrival (“TOA”) measurement between the wireless device and one or more of the plural nodes or LMUs may be determined as a function of the first signal transmitted from the wireless device. Downlink signal measurements of signals received by the wireless device may be collected, and a location of the wireless device determined as a function of the uplink TOA measurements and the collected downlink signal measurements.Type: GrantFiled: April 14, 2014Date of Patent: January 3, 2017Assignee: CommScope Technologies LLCInventors: Ariful Hannan, Tariqul Islam
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Patent number: 9423508Abstract: A system and method for determining transmission delay in a communications system. In some embodiments, satellite positioning information may be received for a mobile device and enhanced cell identification (E-CID) positioning information received for the mobile device. A location of the mobile device may be determined as a function of the received satellite positioning information, and transmission delay between a node serving the mobile device and an antenna serving the mobile device determined as a function of the received E-CID positioning information and the determined location of the mobile device.Type: GrantFiled: January 14, 2013Date of Patent: August 23, 2016Assignee: CommScope Technologies LLCInventors: Ariful Hannan, Khalid W Al-Mufti, Tariqul Islam
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Patent number: 9173058Abstract: A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LTE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.Type: GrantFiled: August 8, 2013Date of Patent: October 27, 2015Assignee: CommScope Technologies LLCInventors: Tariqul Islam, John Carlson
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Publication number: 20140228049Abstract: A system and method for estimating a location of a wireless device receiving signals from plural nodes of a communications network. A wireless device may be directed to transmit a first signal having one or more predetermined parameters. At one or more location measurement units (“LMU”) an uplink time of arrival (“TOA”) measurement between the wireless device and one or more of the plural nodes or LMUs may be determined as a function of the first signal transmitted from the wireless device. Downlink signal measurements of signals received by the wireless device may be collected, and a location of the wireless device determined as a function of the uplink TOA measurements and the collected downlink signal measurements.Type: ApplicationFiled: April 14, 2014Publication date: August 14, 2014Inventors: Ariful Hannan, Tariqul Islam
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Patent number: 8805400Abstract: A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LIE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.Type: GrantFiled: November 22, 2010Date of Patent: August 12, 2014Assignee: Andrew, LLCInventors: Tariqul Islam, John Carlson
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Patent number: 8787942Abstract: A system and method for estimating a location of a wireless device receiving signals from plural nodes of a communications network. A wireless device may be directed to transmit a first signal having one or more predetermined parameters. At one or more location measurement units (“LMU”) an uplink time of arrival (“TOA”) measurement between the wireless device and one or more of the plural nodes or LMUs may be determined as a function of the first signal transmitted from the wireless device. Downlink signal measurements of signals received by the wireless device may be collected, and a location of the wireless device determined as a function of the uplink TOA measurements and the collected downlink signal measurements.Type: GrantFiled: August 5, 2009Date of Patent: July 22, 2014Assignee: Andrew LLCInventors: Ariful Hannan, Tariqul Islam
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Patent number: 8730932Abstract: A system and method for estimating a location of a wireless device receiving signals from plural nodes of a Code Division Multiple Access 2000 communications system. One or more ranges of a wireless device from one or more of the plural nodes may be determined as a function of signals received at the wireless device from the respective one or more plural nodes and as a function of information in an uplink pilot signal. From one or more location measurement units (“LMU”) measurements an uplink time of arrival (“TOA”) measurement from the device may be determined and then an estimation of the location of the wireless device determined as a function of the uplink TOA and determined one or more ranges.Type: GrantFiled: August 5, 2009Date of Patent: May 20, 2014Assignee: Andrew LLCInventor: Tariqul Islam
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Patent number: 8731457Abstract: A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LTE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.Type: GrantFiled: November 22, 2010Date of Patent: May 20, 2014Assignee: Andrew LLCInventors: Tariqul Islam, John Carlson
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Publication number: 20130324155Abstract: A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LTE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.Type: ApplicationFiled: August 8, 2013Publication date: December 5, 2013Applicant: Andrew LLCInventors: Tariqul Islam, John Carlson
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Patent number: 8554248Abstract: A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.Type: GrantFiled: December 5, 2012Date of Patent: October 8, 2013Assignee: Andrew LLCInventors: Tariqul Islam, John Carlson, Khalid Al-Mufti, Ariful Hannan
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Patent number: 8548492Abstract: A system and method for estimating a location of a subscriber station receiving a first signal from a first base station and receiving a second signal from a second base station where the first and second base stations are nodes in a WiMAX or LTE network. A message may be received from the subscriber station containing first and second information, and a range ring determined from the first base station using the first information. A location hyperbola may be determined using the second information wherein the location hyperbola has the first and second base stations as foci. A location of the subscriber station may be estimated using the range ring and the location hyperbola.Type: GrantFiled: November 22, 2010Date of Patent: October 1, 2013Assignee: Andrew LLCInventors: Tariqul Islam, John Carlson
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Patent number: 8463293Abstract: A system and method for estimating a location of wireless devices transmitting signals on channels in a communications system having a plurality of nodes and a plurality of Location Measurement Units (“LMU”). A first plurality of signals from a first channel may be received by one or more of the plural LMUs and a second plurality of signals from a second channel may be received by one or more of the plural LMUs. The received first and second plural signals may be converted into first and second digital signals and then divided into first and second sets of frequency bins, the first and second sets of bins corresponding to the respective channel. Each of the divided signals may be correlated with one or more reference signals, and the correlated signals stored in a database for estimating a location of one or more wireless devices.Type: GrantFiled: September 11, 2012Date of Patent: June 11, 2013Assignee: Andrew LLCInventor: Tariqul Islam
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Publication number: 20130143598Abstract: A method and system for determining the location of a mobile device in a communications network or the proximity of the device to a node in the network. A location request may be received for a mobile device served by a base station in the network. A set of nodes associated with the serving base station may then be tasked and downlink data collected at a first node, the downlink data from a downlink signal received from the serving base station. Downlink frame timing may then be determined as a function of the collected downlink data and uplink data collected at a second node as a function of the determined downlink frame timing. A geographic location for the device or proximity thereof to a node may be determined as a function of the collected uplink data.Type: ApplicationFiled: December 2, 2011Publication date: June 6, 2013Applicant: Andrew, LLCInventors: Navin Srinivasan, Ariful Hannan, Tariqul Islam
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Patent number: RE48505Abstract: A system and method for determining transmission delay in a communications system. In some embodiments, satellite positioning information having System Frame Number (SFN) information may be received for a mobile device and observed time difference of arrival (OTDOA) measurements may be received for a mobile device. A location of the mobile device may be determined as a function of the received satellite positioning information. A Global Positioning System (GPS) time estimate may be determined as a function of the determined location of the mobile device. Transmission delay between a node serving the mobile device and an antenna serving the mobile device may be determined as a function of the received OTDOA measurements and determined GPS time estimate.Type: GrantFiled: October 2, 2019Date of Patent: April 6, 2021Assignee: CommScope Technologies LLCInventors: Ariful Hannan, Khalid W. Al-Mufti, Tariqul Islam