Patents by Inventor Son Le
Son Le 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: 20250199906Abstract: A new approach is proposed that contemplates system and method to support multiple error detection and/or correction mechanisms via flexible on-chip memory (OCM) configurations. Here, an OCM includes a plurality of memory banks, wherein each of the plurality of memory banks includes a plurality of memory instances. Under the proposed approach, a first subset of the plurality of memory banks are configured to support a first type of error detection and/or correction mechanism while a second subset of the plurality of memory banks are configured to support a second type of error detection and/or correction mechanism. Moreover, a subset of memory instances within one or more of the plurality of memory banks are configured to store data and extra code words at the same time in order to efficiently support a specific type of error detection and/or correction mechanism.Type: ApplicationFiled: September 23, 2024Publication date: June 19, 2025Inventors: Anh Nguyen, Duc Tran, Hoang Son Le
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Publication number: 20250147141Abstract: A multipath signal is received comprising a PRN code used to determine time of arrival of a signal of interest. A correlated received signal is generated by filtering and correlating of the received multipath signal. Short-term accumulation segments are generated based on the correlated received signal. Doppler hypotheses are applied to each of the short-term accumulation segments to generate phase-corrected short-term accumulated blocks. The phase-corrected short-term accumulated blocks are accumulated to generate long-term accumulated blocks for each Doppler hypothesis. Alternatively, cross-correlation samples are generated for signal samples for each short-term accumulation segment, and the cross-correlation samples are accumulated to generate a long-term accumulated block.Type: ApplicationFiled: June 25, 2024Publication date: May 8, 2025Applicant: NextNav FranceInventors: Rabih CHRABIEH, Vinh Hoang Son LE
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Publication number: 20250119775Abstract: A method involves receiving cellular signals from multiple base stations at a signal monitoring unit. A first long-duration signal accumulation of the cellular signals is performed. First cells associated with the base stations are identified using the first accumulated signal. First cellular network parameters associated with the first identified cells are stored. A signal contribution of the first identified cells is removed from the first cellular signals. A second long-duration signal accumulation of the first cellular signals is performed. Second cells associated with the plurality of base stations are identified using the second accumulated signal, the second identified cells having been obscured by the first cells before the signal contribution of the first cells was removed from the first cellular signals. Second cellular network parameters associated with the second identified cells are stored. The first and second cellular network parameters of the first and second identified cells are then tracked.Type: ApplicationFiled: July 2, 2024Publication date: April 10, 2025Applicant: NextNav FranceInventors: Rabih CHRABIEH, Arnaud DUMENIL, Vinh Hoang Son LE, Laurent SIBONY, Ganda OUEDRAOGO
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Publication number: 20240389065Abstract: A method involves determining estimated positions for multiple cells within a region using cellular signals received by a receiver at multiple known receiver positions. Multiple first cell groups are determined using the multiple cells. Respective estimated positions are determined for each cell group of the first cell groups. Each cell group of the first cell groups is validated using the respective estimated position of each cell group and the known receiver positions. Multiple second cell groups are generated based on the cell group validation. An estimated position of each cell group of the second cell groups is used as an estimated position of a respective base station within the region, and a base station almanac is updated using a respective estimated position for each of the base stations.Type: ApplicationFiled: May 16, 2024Publication date: November 21, 2024Applicant: NextNav FranceInventors: Rabih CHRABIEH, Minh HOANG, Mazen NEIFER, Vinh Hoang Son LE, Laurent SIBONY, Ganda OUEDRAOGO
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Publication number: 20240351580Abstract: A safety control system for self-driving vehicles when traveling in narrow roads with blind turns. The system has features to avoid collision when moving, predict traffic situations at blind turns and assist steering, and warn about safety when traveling in narrow roads. The collision avoidance feature of the surrounding environment when moving is performed based on the signals of the lidar sensors, ultrasonic distance sensors and the cameras on the vehicle. The feature of predicting the situation at the turn based on sound and light signals as the vehicle approaches the turn. The steering assist feature helps to follow the scenario corresponding to the vehicle's prediction when the turn is reached, and provides warning signals such as lights and horns in accordance with traffic situations.Type: ApplicationFiled: February 29, 2024Publication date: October 24, 2024Applicant: ALPHA ASIMOV ROBOTICS COMPANY LIMITEDInventors: ANH SON LE, DUY HUNG NGUYEN
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Patent number: 12119880Abstract: An optical receiver, e.g., for an Optical Supervisory Channel (OSC), whose optical front end comprises a polarization-diversity coherent optical receiver configured to receive a conventional intensity-modulated (e.g., OSC) signal. Four quadrature components of the received OSC signal detected by the polarization-diversity coherent optical receiver are sampled at a relatively high sampling rate and are used to calculate the Stokes parameters of the OSC signal. As a result, the Stokes parameters can be updated at the high sampling rate, which can be suitably selected to enable polarization tracking with a relatively high time resolution and/or at relatively high SOP-rotation speeds. The four detected quadrature components are appropriately combined in the receiver DSP to determine the intensity of the received OSC signal, which is then used in a conventional manner to recover the OSC data encoded therein.Type: GrantFiled: August 10, 2020Date of Patent: October 15, 2024Assignee: Nokia Solutions and Networks OyInventor: Thai Son Le
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Patent number: 11650290Abstract: Determining a target's range profiles is an important issue for coastal surveillance radars because it can give us the knowledge about the target, for example, target's type, target's structure and its length along radial direction. Some modern radars nowaday are equipped with the feature of target's range profile extraction, but the results are not accurate due to limitations in processing algorithms. The invention “system and method of determining target's range profiles for coastal surveillance radars” solves the above problem in the direction of proposing a system of technical solutions and associated algorithm improvements.Type: GrantFiled: December 30, 2020Date of Patent: May 16, 2023Assignee: VIETTEL GROUPInventors: Van Loi Nguyen, Thanh Son Le, Trung Kien Tran
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Patent number: 11650340Abstract: An optical communication system that enables any deployed fiber-optic cable to function as an earthquake-detection sensor. In an example embodiment, a WDM optical transmitter of one network node operates to transmit a CW optical signal together with legacy data-carrying optical signals. At another network node, a low-complexity, low-latency coherent optical receiver is used to obtain time-resolved measurements of the Stokes parameters of the CW optical signal. The signal-processing chain of the optical receiver employs digital filtering to select frequency components of the measurements streams corresponding to seismic disturbances of the fiber-optical cable connecting the nodes. The selected frequency components are then used to compute values of an earthquake indicator, which are reported to a network controller. Based on such reports from three or more nodes, the network controller can determine the epicenter and magnitude of the earthquake and, if warranted, may generate a tsunami forecast.Type: GrantFiled: December 1, 2020Date of Patent: May 16, 2023Assignee: Nokia Solutions and Networks OyInventor: Thai Son Le
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Patent number: 11609296Abstract: A ferromagnetic resonance (FMR) measurement method is disclosed wherein a magnetic film or stack of layers is patterned into elongated structures having a length along a long axis. A magnetic field (H) is applied in two different orientations with respect to the long axis (in-plane parallel and perpendicular to the long axis) or one orientation may be perpendicular-to-plane. In another embodiment, H is applied parallel to a first set of elongated structures with a long axis in the x-axis direction, and perpendicular to a second set of elongated structures with a long axis in the y-axis direction. From the difference in measured resonance frequency (?fr) (for a fixed magnetic field and sweeping through a range of frequencies) or the difference in measured resonance field (?Hr) (for a fixed microwave frequency and sweeping through a range of magnetic field amplitudes), magnetic saturation Ms is determined using formulas of demagnetizing factors.Type: GrantFiled: September 28, 2020Date of Patent: March 21, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Santiago Serrano Guisan, Luc Thomas, Guenole Jan, Son Le
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Publication number: 20230046425Abstract: Described are compounds and compositions for transdifferentiation of glioblastoma cells to antigen presenting cells. Methods of using the compounds and compositions to treat glioblastoma and to induce an immune response against a glioblastoma are also described.Type: ApplicationFiled: December 22, 2020Publication date: February 16, 2023Inventors: David TRAN, Son LE
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Publication number: 20220383102Abstract: Various embodiments analyze the application of satellite imaging and deep learning in predicting ignition and spread of major wildfires. The training data comes from NASA satellite products and historical records of wildfires in the United States. A state-of-the-art technique in neural network image classification may be utilized and yield impressive results for wildfire ignition prediction. In one embodiment, the model may achieve an accuracy rate of 93.5%, a precision rate of 93.2%, a recall rate of 88.9%, and an F-1 score of 90.8%. Direct applications of the model may include wildfire monitoring and wildfire prevention.Type: ApplicationFiled: November 24, 2021Publication date: December 1, 2022Inventors: Son Le, Andrew Engler, Nathaniel Manning
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Patent number: 11491743Abstract: A method of fabricating a gas turbine casing out of composite material of varying thickness, the method including making a strip-shaped fiber texture by three-dimensional weaving; winding the fiber texture as a plurality of superposed layers onto a mandrel of profile corresponding to the profile of the casing that is to be fabricated, so as to obtain a fiber preform of shape corresponding to the shape of the casing that is to be fabricated; and densifying the fiber preform with a matrix; wherein, before beginning to wind the fiber texture onto the mandrel, a reinforcing band of width smaller than the width of the fiber texture is placed on the mandrel in a zone that is to form a retention zone of the casing.Type: GrantFiled: November 28, 2018Date of Patent: November 8, 2022Assignee: SAFRAN AIRCRAFT ENGINESInventors: Son Le Hong, Roland José Yann Mortier, Antoine Phelippeau
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Patent number: 11447768Abstract: The subject invention pertains to a Molecular Cell Diary System (MCDS), which allows identification of the history of somatic alterations in the cell. MCDS comprises one or more combinations of a DNA cutter and a DNA writer expressed under the control of a promoter controlled a cellular event of interest. The DNA cutter and the DNA writer are in a combination are co-expressed when an even of interest occurs. The DNA cutter creates double strand breaks (DSB) in a target DNA in a sequence specific manner and the DNA writer incorporates DNA sequences in the DSB. The endogenous DNA repair machinery synthesizes repairs the DSB. As such, the combination of the DNA cutter and the DNA writer modifies the target DNA and leaves “marks” of the occurrence of the cellular event of interest. These marks are sequenced and the cellular event history of the cell is deciphered.Type: GrantFiled: March 1, 2017Date of Patent: September 20, 2022Assignee: University of Florida Research Foundation, IncorporatedInventors: David Tran, Son Le
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Patent number: 11440827Abstract: A method of preparing and separating biopolymers and biopolymer fractions is useful for wastewater treatment applications from sewage sludge. The method comprising the steps of disrupting the bacterial cell walls of bacteria present in the sewage sludge by at least 75% to release the intracellular contents of the bacterial cells and separating the biopolymers from any contaminants present.Type: GrantFiled: August 1, 2018Date of Patent: September 13, 2022Assignee: UNITED UTILITIES PLCInventor: Minh Son Le
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Patent number: 11397226Abstract: A scanning ferromagnetic resonance (FMR) measurement system is disclosed with a radio frequency (RF) probe and one or two magnetic poles mounted on a holder plate and enable a perpendicular-to-plane or in-plane magnetic field, respectively, at test locations. While the RF probe tip contacts a magnetic film on a whole wafer under test (WUT), a plurality of microwave frequencies (fR) is sequentially transmitted through the probe tip. Simultaneously, a magnetic field (HR) is applied to the contacted region thereby causing a FMR condition in the magnetic film for each pair of (HR, fR) values. RF output signals are transmitted through or reflected from the magnetic film to a RF diode and converted to voltage signals which a controller uses to determine effective anisotropy field, linewidth, damping coefficient, and/or inhomogeneous broadening for a sub-mm area. The WUT is moved to preprogrammed locations to enable multiple FMR measurements at each test location.Type: GrantFiled: August 31, 2020Date of Patent: July 26, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Guenole Jan, Son Le, Luc Thomas, Santiago Serrano Guisan
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Publication number: 20220171081Abstract: An optical communication system that enables any deployed fiber-optic cable to function as an earthquake-detection sensor. In an example embodiment, a WDM optical transmitter of one network node operates to transmit a CW optical signal together with legacy data-carrying optical signals. At another network node, a low-complexity, low-latency coherent optical receiver is used to obtain time-resolved measurements of the Stokes parameters of the CW optical signal. The signal-processing chain of the optical receiver employs digital filtering to select frequency components of the measurements streams corresponding to seismic disturbances of the fiber-optical cable connecting the nodes. The selected frequency components are then used to compute values of an earthquake indicator, which are reported to a network controller. Based on such reports from three or more nodes, the network controller can determine the epicenter and magnitude of the earthquake and, if warranted, may generate a tsunami forecast.Type: ApplicationFiled: December 1, 2020Publication date: June 2, 2022Applicant: Nokia Solutions and Networks OYInventor: Thai Son Le
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Publication number: 20220138919Abstract: An image processing device and image processing methods that improve image quality by reducing latency and improving the performance of local processing are provided. An image processing device using an image input signal as an input and an image output signal as an output includes a first image processing unit and a second image processing unit. The first image processing unit includes a histogram processing unit for extracting image characteristic data from the image input signal, a first image parameter processing unit for creating a first parameter group for performing image processing from the image characteristic data, and an arithmetic processing unit for processing the image input signal to create an image output signal. The second image processing unit has a second image parameter processing unit for creating a second parameter group for performing image processing from the image characteristic data.Type: ApplicationFiled: November 4, 2020Publication date: May 5, 2022Inventors: Quyet Hoang, Hai NGUYEN, Son LE, Kenichi IWATA, Tetsuya SHIBAYAMA
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Patent number: 11309959Abstract: A direct-detection optical data receiver capable of low-latency SSBI cancellation using one or more FIR filters in the chain of digital signal processing thereof. In an example embodiment, a DSP of the receiver may have first and second serially connected FIR filters whose filter coefficients are updated based on a same feedback signal. An SSBI-cancellation circuit of the DSP is configured to estimate the SSBI by summing a scaled square of the filtered signal generated by the first FIR filter and a scaled square of the filtered signal generated by the second FIR filter. In some embodiments, the SSBI-cancellation circuit may have two or more serially connected stages, each of which incrementally improves the accuracy of the SSBI estimate. In some embodiments, the need for dedicated and/or specialized filter-calibration procedures may beneficially be circumvented.Type: GrantFiled: June 2, 2020Date of Patent: April 19, 2022Assignee: NOKIA SOLUTIONS AND NETWORKS OYInventor: Thai Son Le
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Publication number: 20220045766Abstract: An optical receiver, e.g., for an Optical Supervisory Channel (OSC), whose optical front end comprises a polarization-diversity coherent optical receiver configured to receive a conventional intensity-modulated (e.g., OSC) signal. Four quadrature components of the received OSC signal detected by the polarization-diversity coherent optical receiver are sampled at a relatively high sampling rate and are used to calculate the Stokes parameters of the OSC signal. As a result, the Stokes parameters can be updated at the high sampling rate, which can be suitably selected to enable polarization tracking with a relatively high time resolution and/or at relatively high SOP-rotation speeds. The four detected quadrature components are appropriately combined in the receiver DSP to determine the intensity of the received OSC signal, which is then used in a conventional manner to recover the OSC data encoded therein.Type: ApplicationFiled: August 10, 2020Publication date: February 10, 2022Applicant: Nokia Solutions and Networks OYInventor: THAI SON LE
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Patent number: 11237240Abstract: A ferromagnetic resonance (FMR) measurement system is disclosed with a plurality of “m” RF probes and one or more magnetic assemblies to enable a perpendicular-to-plane or in-plane magnetic field (Hap) to be applied simultaneously with a sequence of microwave frequencies (fR) at a plurality of “m” test locations on a magnetic film formed on a whole wafer under test (WUT). A FMR condition occurs in the magnetic film (stack of unpatterned layers or patterned structure) for each pair of (Hap, fR) values. RF input signals are distributed to the RF probes using RF power distribution or routing devices. RF output signals are transmitted through or reflected from the magnetic film to a plurality of “n” RF diodes where 1?n?m, and converted to voltage signals which a controller uses to determine effective anisotropy field, linewidth, damping coefficient, and/or inhomogeneous broadening at the predetermined test locations.Type: GrantFiled: August 24, 2020Date of Patent: February 1, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Santiago Serrano Guisan, Luc Thomas, Son Le, Guenole Jan