Patents Assigned to AT&T Technologies
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Patent number: 11984108Abstract: A method and system for noise cancellation is disclosed. In one embodiment, the method may include receiving, from a first sensor, a first signal indicative of a noise generated by an equipment. The first sensor may be configured to generate the first signal indicative of the noise generated by the equipment. The first sensor may be positioned in proximity to the equipment. The method may further include generating a noise cancellation signal based on the first signal and triggering a speaker to generate a sound corresponding to the noise cancellation signal, wherein the speaker is positioned in proximity to the equipment.Type: GrantFiled: March 30, 2022Date of Patent: May 14, 2024Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventor: Dennis J
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Patent number: 11981240Abstract: This disclosure relates to controlling temperature inside a receptacle 102 in a vehicle. In an embodiment, a temperature-controlled system for a vehicle is disclosed. The temperature-controlled system may include a receptacle 102 having at least one inlet 104, and a housing 106 fitted to the receptacle 102. The housing 106 may include an opening 108. The opening 108 may be configured to be fluidically coupled to a heating, ventilation, and air conditioning (HVAC) vent of the vehicle. The housing 106 may further include an open front face 110 fluidically coupled to the at least one inlet 104 of the receptacle 102, and a gate assembly mounted on the housing 106. The gate assembly 106 may include a gate configured to engage or disengage with the opening 108 to fluidically couple or fluidically decouple, respectively, the opening 108 to the vent.Type: GrantFiled: September 27, 2019Date of Patent: May 14, 2024Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Hariprasad V Prabhakar, Ratheesh Kizhakke Valappil, Ashish Singh
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Patent number: 11972673Abstract: A system (102) for assisting a patient to raise an alarm is disclosed. The system (102) may include a sensor (106) configured to be positioned at a head region of the patient and to detect movement of head of the patient. The system (102) may further include a patient assisting device (104) coupled to the sensor (106). The patient assisting device (104) may be configured to receive, from the sensor (106), a signal corresponding to the movement of the head of the patient, determine a state of alarm value from the signal, and generate an alarm based on the state of alarm value.Type: GrantFiled: June 24, 2022Date of Patent: April 30, 2024Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Jagdish Prasad Sahu, Keyur Bhalodiya, Ashish Kumar, Rishabh Ranjan
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Patent number: 11965251Abstract: A fluid tight, fully-densified, coating is prepared by a High Velocity Oxygen Fuel (“HVOF”) process that dilutes oxygen with an inert gas. The inert gas is pre-mixed with oxygen prior to the oxygen entering a combustion chamber. The resultant flame temperature is lowered a controlled amount to eliminate, minimize or reduce oxidation of power feedstock that is injected into the thermal spray torch. The ability to reduce the flame temperature allows a relatively smaller particle feedstock to be deposited without significant oxidation. The dilution process creates an as-deposited fully-dense, fluid tight coating.Type: GrantFiled: August 5, 2019Date of Patent: April 23, 2024Assignee: Praxair S.T. Technology, Inc.Inventors: Daming Wang, Ardy S Kleyman, Kasey D Hughes
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Patent number: 11931868Abstract: A wrench head for a universal wrench is disclosed that may include a housing having an upper portion and a lower portion. The wrench head may further include a base plate positioned inside the housing towards the upper portion of the housing, and a plurality of push-rods positioned inside the housing. The wrench head may further include a resilient member positioned inside the housing between the base plate and the distal end of each of the plurality of push-rods. In the default position, the resilient member biases each of the plurality of push-rods, and in the retracted position, the proximal end of each of the plurality of push-rods is pushed against the resilient member to be received along with a portion of the resilient member by a compartment of the plurality of compartments defined at the bottom surface of the base plate.Type: GrantFiled: February 2, 2022Date of Patent: March 19, 2024Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventor: Shubham Shrivastava
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Patent number: 11875186Abstract: A system manages resources based on a hardware transactional memory unit. The system stores a system profile map comprising system profiles of applications. The system profile of an application stores information describing system resource utilization of the application. If a request for resources for executing a new application is received, a hardware transactional memory unit determines an amount of memory to be allocated for executing the new application and allocates memory partitions for executing the new application. The system profile of the new application is compared with system profiles in the system profile map. If there are any indicators of compromise representing potential compromise of the new application the request for resources for the new application is denied. The system generates and uses true random numbers.Type: GrantFiled: June 8, 2023Date of Patent: January 16, 2024Assignee: B Q T TechnologiesInventor: Dipnarayan Guha
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Patent number: 11827808Abstract: Polyurethane-based coatings which exhibit superior erosion and heat resistance combined with antifouling and chemical resistance that are useful for protection of metal components are provided. The coatings are characterized by enhanced particle erosion resistance and enhanced heat resistance and are derived from specific multicomponent slurry compositions.Type: GrantFiled: January 30, 2020Date of Patent: November 28, 2023Assignee: Praxair S.T. Technology, Inc.Inventors: Mark W Perpall, Irina Belov
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Patent number: 11822589Abstract: In an embodiment, a method of performing summarization of text is disclosed. The method may include receiving an input text including a plurality of paragraphs and a user-query including one or more tokens. The method may further include segregating the input text into the plurality of paragraphs, creating a plurality of paragraph-vectors representative of the plurality of paragraphs, and clustering the plurality of paragraph-vectors to generate one or more clusters of paragraph-vectors. The method may further include determining a relevant cluster of paragraph-vectors from the one or more clusters of paragraph-vectors, based on a degree of similarity of each cluster of paragraph-vectors with the user-query. The relevant cluster of paragraph-vectors is representative of a set of relevant paragraphs from the input text. The set of relevant paragraphs corresponding to the relevant cluster of paragraph-vectors may be outputted.Type: GrantFiled: September 16, 2021Date of Patent: November 21, 2023Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Madhusudan Singh, Aritra Ghosh Dastidar, Vanapalli Venkata Nirmal Ramesh Rayulu
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Patent number: 11818185Abstract: This disclosure relates to methods and systems for providing contemporaneous audio streaming from a host Bluetooth device (201) to a plurality of receiving Bluetooth devices (202). In an embodiment, a method (400) may include disabling a stream end point (SEP) restriction in an audio streaming profile of a Bluetooth protocol stack of the host Bluetooth device (201) to allow contemporaneous connection between the host Bluetooth device (201) and each of the plurality of receiving Bluetooth devices (202). The method may further include creating one or more streaming sessions in the Bluetooth protocol stack in response to one or more connection requests from one or more receiving Bluetooth devices, wherein the one or more streaming sessions are mutually independent of each other, and wherein each streaming session correspond to one receiving Bluetooth device and comprise an instance of an audio streaming protocol and an instance of a streaming channel.Type: GrantFiled: March 28, 2019Date of Patent: November 14, 2023Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Abhirup Anjan Mitra, Sanjay Shivkumar Mishra, Avinash Ramesh Barai
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Patent number: 11814814Abstract: This disclosure relates to a hydraulic system for a hydro-mechanical machine comprising a rotary mechanism and a boom cylinder The hydraulic system includes a primary accumulator configured to receive and store high-pressure fluid in response to starting and stopping of the rotary mechanism. A control system configured to enable passage of the high-pressure fluid stored in the primary accumulator to a rotary control valve configured to control the rotary mechanism, and a boom control valve configured to control the boom cylinder through the hydraulic supply circuit, based on a predefined pressure threshold associated with the primary accumulator. A secondary accumulator coupled to the primary accumulator and the control system via the hydraulic supply circuit is configured to store surplus high-pressure fluid provided by the primary accumulator through the hydraulic supply circuit.Type: GrantFiled: March 18, 2020Date of Patent: November 14, 2023Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Atul Chandra Tripathi, Shailendra J Shrivastava
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Patent number: 11803978Abstract: A method of generating a composite image from multiple images captured for a subject is disclosed. In some embodiments, the method may include receiving, via an image capturing device, a plurality of sets of images of at least a portion of a subject. The images within a set of images may be captured at a plurality of vertical positions with respect to an associated fixed section of a horizontal plane. The method may further include generating a plurality of focus-stacked images corresponding to the plurality of sets of images, for example, by combining the images in the associated set of images. The method may further include aligning the plurality of focus-stacked images in the horizontal plane based on a horizontal coordinate transformation model to generate a composite image representing the subject.Type: GrantFiled: March 2, 2022Date of Patent: October 31, 2023Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Sunil Kv, Kasthuri Thiyagarajan, Arangarajan P, Gineesh Sukumaran, Karthigeyan S
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Patent number: 11725548Abstract: The present disclosure relates to a camless engine in which a camless system is configured for controlling one or more engine valves of an internal combustion engine is disclosed. The system comprises a pneumatic accumulator configured to store compressed air, and at least one pneumatic actuator having a piston rod. The pneumatic actuator is configured for abutment with the engine valves of the internal combustion engine. The system further comprises at least one pneumatic control valve fluidly connected between the pneumatic accumulator and the pneumatic actuator, a sensor configured to sense an engine parameter and to transmit a signal to actuate the pneumatic control valves and an electronic control unit configured to control the pneumatic valves based on the signal received from the sensor.Type: GrantFiled: June 22, 2022Date of Patent: August 15, 2023Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventor: Murtuza Gunderwala
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Patent number: 11582134Abstract: A method and system for remote testing of a plurality of devices is disclosed. The method may include receiving a request from a client system to perform testing on a set of remote devices. The local system and the client system are connected via a first network connection and the plurality of remote devices are connected to the local system via a second network connection. The method may further include receiving an input from the client system with reference to a test-suite to perform a testing action on the set of remote devices, generating a test command corresponding to the input, and transmitting the test command to each of the set of remote devices. The method may further include receiving feedback from each of the set of remote devices and transmitting the feedback to the client system.Type: GrantFiled: December 17, 2021Date of Patent: February 14, 2023Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Sumanth Roshan Raj Manuel, Nikita Swain
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Patent number: 11535560Abstract: Hexavalent chromium-free slurry formulations which are suitable in the production of ceramic overlay coating systems are described. The formulations provide superior hot corrosion and heat oxidation protection for superalloy substrates. A basecoat slurry and topcoat slurry are provided. The basecoat slurry includes an aluminum phosphate based aqueous solution having a molar ratio of Al:PO4 higher than about 1:3 with the incorporation of metal oxide particles. The topcoat slurry includes an aluminum phosphate based aqueous solution having a molar ratio of Al:PO4 higher than about 1:3. Both of the basecoat slurry and the topcoat slurry are hexavalent chromium-free.Type: GrantFiled: May 8, 2019Date of Patent: December 27, 2022Assignee: Praxair S.T. Technology, Inc.Inventors: Irina Belov, Zhihong Tang, Brian Fitzwater, Daryl G Copeland
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Patent number: 11493913Abstract: This disclosure relates to a method and system for monitoring health and predicting failure of an electro-mechanical machine. In an embodiment, the method may include receiving a plurality of operational parameters with respect to the electro-mechanical machine and determining a set of features and a set of events, based on the plurality of operational parameters. The method may further include detecting one or more fault signatures associated the electro-mechanical machine based on at least one of the plurality of operational parameters, the set of features, or the set of events. The method may further include determining at least one of a time to the possible failure and a remaining useful life of the electro-mechanical machine based on at least one of the plurality of operational parameters, the set of features, the set of events, or the one or more fault signature, by using a hybrid machine learning model.Type: GrantFiled: March 28, 2019Date of Patent: November 8, 2022Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Shailendra Shukla, Mayur J Dhameliya, Ratheen Chaturvedi, Santosh Jadhav, Uddipan Paul, Siddhant Malhotra
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Patent number: 11486587Abstract: An HVAC system is disclosed. The HVAC system includes at least one heat exchanger unit disposed within a predefined area. The HVAC system further includes at least one frame cooperating with each of the at least one heat exchanger unit. The at least one frame includes a guiding assembly configured to move each of the at least one heat exchanger unit across the predefined area. The guiding assembly includes a guiding rail. The guiding assembly further includes at least one slider cooperating with the guiding rail to enable movement of the at least one heat exchanger unit. Each of the at least one slider comprises a fastening unit configured to attach a heat exchanger unit to an associated slider. The guiding assembly includes at least one actuator, wherein each of the at least one actuator is configured to move an associated slider from the at least one slider.Type: GrantFiled: November 23, 2018Date of Patent: November 1, 2022Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Murlidharan Karunanidhi, Senthilkumar Chandrasekaran, Suresh Kodisana, Aravind Subramanian
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Patent number: 11479841Abstract: This invention relates to a thin and texturized film that can be applied onto a non-smooth surface to improve hardness, corrosion resistance and wear resistance properties of the surface while maintaining the underlying profile of the non-smooth surface. An additive overlaying process can be employed to produce the thin and texturized film on the non-smooth surfaces without substantial alteration or degradation of the underlying surface texture or profile of the non-smooth surfaces so as to sufficiently preserve the underlying surface texture or profile. The thin and texturized film fully covers the non-smooth in a uniform manner and maintains the surface profile.Type: GrantFiled: June 8, 2018Date of Patent: October 25, 2022Assignee: Praxair S.T. Technology, Inc.Inventors: Ardy S Kleyman, Daming Wang, Kasey Hughes
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Patent number: 11302017Abstract: A method of generating a composite image from multiple images captured for a subject is disclosed. In some embodiments, the method may include receiving, via an image capturing device, a plurality of sets of images of at least a portion of a subject. The images within a set of images may be captured at a plurality of vertical positions with respect to an associated fixed section of a horizontal plane. The method may further include generating a plurality of focus-stacked images corresponding to the plurality of sets of images, for example, by combining the images in the associated set of images. The method may further include aligning the plurality of focus-stacked images in the horizontal plane based on a horizontal coordinate transformation model to generate a composite image representing the subject.Type: GrantFiled: March 12, 2020Date of Patent: April 12, 2022Assignee: L&T TECHNOLOGY SERVICES LIMITEDInventors: Sunil Kv, Kasthuri Thiyagarajan, Arangarajan P, Gineesh Sukumaran, Karthigeyan S
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Patent number: 11261135Abstract: Hexavalent chromium-free slurries are provided that are capable of achieving a full cure at temperatures as low as 330-450 degrees F., thus making the coatings especially suitable for application on temperature sensitive base materials. The slurries are suitable in the production of protective coating systems formed by novel silicate-based basecoats that are sealed with novel phosphate-based topcoats. The coating systems exhibit acceptable corrosion and heat resistance and are capable of replacing traditional chromate-containing coating systems.Type: GrantFiled: March 30, 2020Date of Patent: March 1, 2022Assignee: Praxair S.T. Technology, Inc.Inventors: Irina Belov, Thomas F. Lewis, III
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Patent number: 11225441Abstract: A composition based on a certain chromium-free silicate-based binder is described. The composition is an aqueous solution of lithium-doped potassium silicate in combination with an aluminum or aluminum alloy powder, zinc powder or a combination thereof. The coatings of the present invention are capable of achieving a full cure at temperatures as low as 350-450 degrees F. by the inclusion of a colloidal solution of a nano-sized ceria, thus making the coatings especially suitable for application on temperature sensitive base materials.Type: GrantFiled: October 18, 2018Date of Patent: January 18, 2022Assignee: Praxair S.T. Technology, Inc.Inventors: Irina Belov, Daryl Copeland