Patents Assigned to Indian Institute of Technology Madras
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Patent number: 11785612Abstract: The present invention relates to a method of reducing blind decoding attempts by a User Equipment (UE) in a telecommunication network. The method comprises configuring a Search Space (SS) configuration to the UE. A Base Station (BS) signals one of a subset of Aggregation Levels (ALs) to be monitored based on channel quality of the UE and an associated time period, and a value of multiplication factor (k) and an associated time period. The UE iteratively monitors a Physical Downlink Control Channel (PDCCH) on the ALs signalled by the BS till the UE stops receiving a new configuration. The UE performs one of adopting an original configuration, requesting the BS for a new configuration, utilizing a default configuration or utilizing an original configuration.Type: GrantFiled: October 14, 2021Date of Patent: October 10, 2023Assignees: Centre of Excellence in Wireless Technology, Indian Institute of Technology MadrasInventors: Jyothi Pardhasarathy, Deepak Agarwal, Ebin Chacko, Budama Sree Charan Teja Reddy, Chandrasekaran Mohandoss, Thirunageswaram Ramachandran Ramya, Sunil Kaimalettu, Jeniston Deviraj Klutto Milleth, Bhaskar Ramamurthi
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Publication number: 20230288236Abstract: A system for monitoring flow of fluid through a pipeline is disclosed. The system includes a ferromagnetic strip mounted on an outer surface of the pipeline. A solenoid coil is wound around the ferromagnetic strip and is connectable to a power source. A plurality of magnets is positioned over the solenoid coil, wherein each of the plurality of magnets are positioned at a pre-defined orientation with respect to longitudinal axis of the pipeline. A processing unit is communicatively coupled to the solenoid coil. The processing unit generates a plurality of wave modes in the pipeline by supplying power to the solenoid coil in concurrence with the plurality of magnets and the ferromagnetic strip. The processing unit is configured to receive a plurality of wave signals reflected and are then compared with pre-defined wave signals by the processing unit to monitor flow of fluid through the pipeline.Type: ApplicationFiled: July 16, 2021Publication date: September 14, 2023Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)Inventors: Krishnan BALASUBRAMANIAN, Nishanth R.
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Patent number: 11739419Abstract: Improved thin film coatings, cutting tool materials and processes for cutting tool applications are disclosed. A boron-doped graded diamond thin film for forming a highly adhesive surface coating on a cemented carbide (WC—Co) cutting tool material is provided. The thin film is fabricated in a HFCVD reactor. It is made of a bottom layer of BMCD in contact with a surface layer of the cemented carbide, a top layer made of NCD and a transition layer with a decreasing concentration gradient of boron obtained by changing the reaction conditions through ramp up option in hot filament CVD reactor. The top layer has a low friction coefficient. The bottom layer in the coating substrate interface has better interfacial adhesion through cobalt and boron reactivity and decreased cobalt diffusivity in the diamond. The transition layer has minimized lattice mismatch and sharp stress concentration between the top and bottom layers.Type: GrantFiled: April 26, 2018Date of Patent: August 29, 2023Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)Inventors: Kannan Ramasubramaniyan, Narayanan Arunachalam, Ramachandra Rao
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Patent number: 11700626Abstract: Accordingly embodiments herein achieve signaling method and system (2000) for provisioning signalling in an Integrated Access Backhaul (IAB) network (1000). The method includes providing a set of modifications in uplink and downlink signaling for an IAB node (100). The modifications either help to reduce the control channel payload or enable more flexible signaling of resources, improve efficient control channel scheduling and also avoid conflicts that might arise due to discrepancies between semi static and dynamic resource allocation.Type: GrantFiled: July 5, 2022Date of Patent: July 11, 2023Assignees: CENTRE OF EXCELLENCE IN WIRELESS TECHNOLOGY, INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)Inventors: Pardhasarathy Jyothi, Deepak Padmanabhan Maya, Chandrasekaran Mohandoss, Thirunageswaram Ramachandran Ramya, Klutto Milleth Jeniston Deviraj, Bhaskar Ramamurthi
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Publication number: 20230210497Abstract: Embodiments of the present disclosure are directed to a vessel-wall-monitoring device (100) and a method for identifying the walls of blood vessel in a body. The method includes receiving, by the vessel-wall-monitoring device (100), a plurality of ultrasound echo signals from a transducer, wherein the plurality of ultrasound echo signals are transmitted to the transducer from locations of the blood vessel, extracting at least two consecutive ultrasound frames from the plurality of ultrasound echo signals, determining a shift between the at least two consecutive ultrasound frames by comparing samples of the at least two consecutive ultrasound frames, and identifying, a proximal wall and a distal wall of the blood vessel based on the shift between the at least two consecutive ultrasound frames.Type: ApplicationFiled: April 27, 2021Publication date: July 6, 2023Applicant: Indian Institute of Technology Madras (IIT Madras)Inventors: Jayaraj Joseph, Raj Kiran Vangapandu, Nabeel Pilaparambil Mashood, Mohanasankar Sivaprakasam
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Patent number: 11696317Abstract: Accordingly embodiments herein achieve signaling method and system (2000) for provisioning signalling in an Integrated Access Backhaul (IAB) network (1000). The method includes providing a set of modifications in uplink and downlink signaling for an IAB node (100). The modifications either help to reduce the control channel payload or enable more flexible signaling of resources, improve efficient control channel scheduling and also avoid conflicts that might arise due to discrepancies between semi static and dynamic resource allocation.Type: GrantFiled: July 5, 2022Date of Patent: July 4, 2023Assignees: CENTRE OF EXCELLENCE IN WIRELESS TECHNOLOGY, INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRASInventors: Pardhasarathy Jyothi, Deepak Padmanabhan Maya, Chandrasekaran Mohandoss, Thirunageswaram Ramachandran Ramya, Klutto Milleth Jeniston Deviraj, Bhaskar Ramamurthi
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Publication number: 20230200773Abstract: Embodiments of the present disclosure are directed to an vascular-dynamics-monitoring device (100) and methods for tracing a motion of boundaries of a vessel in a human body. The method features an automated gating of vessel walls' echoes in an ultrasound frame input to the vessel, accurate shift estimation for the gated vessel wall region, despite the presence of echoes from moving structures adjacent to the vessel and real-time trace of vessel walls' boundaries.Type: ApplicationFiled: April 27, 2021Publication date: June 29, 2023Applicant: Indian Institute of Technology Madras (IIT Madras)Inventors: Jayaraj Joseph, Raj Kiran Vangapandu, Nabeel Pilaparambil Mashood, Mohanasankar Sivaprakasam
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Publication number: 20230175970Abstract: The disclosure proposes a portable fiber optic measurement device (100) for physical, chemical, and biological sensing applications that facilitates real-time monitoring. The device (100) includes a fiber optic probe cartridge (120) that is removably attached to a measuring device (110). The device (110) includes a light source, a detector, and the associated electronic measurement and control unit along with a display. The device (100) is configured to measure the real-time changes in the light intensity on the fiber probe cartridge side (130). With a U-bent fiber optic probe cartridge (138) as an example, the device (100) is configured to measure the bulk solution refractive index changes, effective refractive index change, or characteristic optical property of analytes including ions, chemical and bio molecules, polymers, compounds, microorganisms present on the fiber core surface (138).Type: ApplicationFiled: August 30, 2021Publication date: June 8, 2023Applicant: Indian Institute of Technology Madras (IIT Madras)Inventors: Raghavendra Sai, V V Lakshmana Swamy
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Publication number: 20230176099Abstract: Accordingly embodiments herein disclose a method for estimating frequencies of multiple sinusoids by an electronic device (100). The method includes receiving a signal, where the signal comprises the multiple sinusoids. Further, the method includes estimating an initial frequency of each of the multiple sinusoids present in the received signal, determining that a first candidate parameter is less than zero, where the candidate parameter is a function of an estimated Signal-to-noise ratio (SNR) and an estimated threshold. Further, the method includes performing zero-padding on the received signal. Further, the method includes re-estimating frequencies obtained from zero-padded version of the received signal. Further, the method includes validating the re-estimated frequencies obtained from zero-padded version of the received signal based on validation criteria. Further, the method includes predicting the re-estimated frequencies or the initial frequencies as optimal frequencies based on the validation.Type: ApplicationFiled: March 18, 2021Publication date: June 8, 2023Applicant: Indian Institute of Technology Madras (IIT Madras)Inventors: Vishnu Palakkal, Coimbatore Subramanian Ramalingam
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Patent number: 11659482Abstract: The present invention relates to a method of signalling in an Integrated Access and Backhaul (IAB) network. The method comprises signalling metrics from a parent IAB node to a child IAB node for association of the child IAB node with the parent IAB node. Information related to multiplexing capability and supported modes of operation is signalled from the child IAB node to the parent IAB node. An active mode of operation is determined at the child IAB node. Timing Advance (TA) for each active mode of operation, guard information for each active mode of operation, and exchanges for In-Band Full Duplexing (IBFD) mode of operation are signalled. Further, fallback capability of IAB nodes during presence of Self-Interference (SI) is also signalled.Type: GrantFiled: June 28, 2021Date of Patent: May 23, 2023Assignees: Centre of Excellence in Wireless Technology and, Indian Institute Of Technology Madras (IIT Madras)Inventors: Priyanka Dey, Deepak Padmanabhan Maya, Thirunageswaram Ramachandran Ramya, Chandrasekaran Mohandoss, Abhijeet Abhimanyu Masal, Sunil Kaimalettu, Jeniston Deviraj Klutto Milleth, Bhaskar Ramamurthi
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Publication number: 20230142159Abstract: A stand-alone miniature in-situ multiaxial universal testing equipment, is disclosed herein. The device comprises a multi-axial loading fixture unit, a data processing unit, an image capturing unit, a data acquisition unit, motor unit, loading jaw, loading heads, displacement sensor, lighting unit and telecentric lens. The device is a stand-alone, in-plane, in-situ miniaturized multiaxial loading fixture that is capable of loading a wide variety of samples including but not limited to, metallic, ceramics and composites.. The loading fixture is capable of in-plane tension, in-plane compression in one-direction or two directions both independently and simultaneously and as well 4-point bending loading of the samples.Type: ApplicationFiled: March 18, 2021Publication date: May 11, 2023Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (HT MADRAS)Inventors: LALITH KUMAR B, GOBIND KUMAR, RAVI KUMAR N.V
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Patent number: 11605429Abstract: Present disclosure relates to a method and a system for searching through a Ternary Content Addressable Memory (TCAM). The system comprises a Digital Light Processing System (DLP) receiving an input query. The DLP comprises a 2-Dimensional array of digital micro mirrors configured for reflecting light from one or more input sources in the TCAM to a predefined position. The system further comprises a detection screen having a detection area. The detection area is configured for generating an image of a resultant pixel according to the reflection of the light, wherein the resultant pixel corresponds to a search result for an input query.Type: GrantFiled: July 1, 2019Date of Patent: March 14, 2023Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)Inventors: Ganesh Chennimalai Sankaran, Krishnamoorthy Sivalingam, Balaji Srinivasan
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Patent number: 11603561Abstract: A method for direct quantification of nucleic acids in real time qPCR. The invention discloses a method for specific quantification of nucleic acids in real time qPCR. The disclosed invention can be achieved in three ways; 1) using a modified primer for qPCR quantification; 2) using strand displacement based probes for qPCR quantification; 3) using label-free endonuclease probe for qPCR quantification. The mechanism of quantification is based on the fact that, DNA, RNA or modified oligonucleotide based light-up dye-aptamer system, where dye is not fluorescent in free state but its fluorescence increases multi-fold when it binds to its specific aptamer.Type: GrantFiled: November 30, 2018Date of Patent: March 14, 2023Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)Inventors: Guhan Jayaraman, Sudeshna Sengupta, Shivansh Goyal
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Patent number: 11573151Abstract: Embodiments herein provide a system (100) to estimate the amplitude of oscillations in a turbulent flow system (102) that exhibits oscillatory instabilities. The system (100) comprises of a sensor (102A) mounted on the turbulent flow system (102) to detect an oscillatory variable in the system obtaining a signal, a signal conditioner (104) that conditions the signal from the sensor, an amplitude estimator (110) that estimates the amplitude of the limit cycle oscillations, and also predict the proximity of the system to the oscillatory instability, a processor (108) connected to the amplitude estimator (110) to compare the predicted oscillation amplitude with a threshold value. The amplitude is estimated by estimating the spectral measure of the time series signal obtained from the system.Type: GrantFiled: July 23, 2019Date of Patent: February 7, 2023Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IITM)Inventors: Induja Pavithran, Vishnu Rajasekharan Unni, Alan John Varghese, Praveen Kasthuri, Raman Pillai Indusekharan Nair Sujith
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Publication number: 20230018319Abstract: A staggered magnet array (SMA) based electromagnetic acoustic transducer (EMAT) system and method for controlling the direction of the ultrasonic waves in the electromagnetic acoustic transducer (EMAT) using staggered magnet array (SMA) configurations, is disclosed herein. The EMAT device proposed herein comprises at least one conductive racetrack coil and at least two magnet arrays wherein the magnet array comprises of permanent magnets, where each magnet is oriented according to a specific configuration to produce ultrasonic waves in order to form an ultrasonic beam by shifting the position of the magnet arrays up or down creating a SMA configuration.Type: ApplicationFiled: November 6, 2020Publication date: January 19, 2023Applicant: Indian Institute of Technology Madras (IIT Madras)Inventors: Krishnan Balasubramanian, Siddharth Shankar
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Patent number: 11553496Abstract: Accordingly embodiments herein achieve signaling method and system (2000) for provisioning signalling in an Integrated Access Backhaul (IAB) network (1000). The method includes providing a set of modifications in uplink and downlink signaling for an IAB node (100). The modifications either help to reduce the control channel payload or enable more flexible signaling of resources, improve efficient control channel scheduling and also avoid conflicts that might arise due to discrepancies between semi static and dynamic resource allocation.Type: GrantFiled: November 6, 2020Date of Patent: January 10, 2023Assignees: CENTRE OF EXCELLENCE IN WIRELESS TECHNOLOGY, INDIAN INSTITUTE OF TECHNOLOGY MADRASInventors: Pardhasarathy Jyothi, Deepak Padmanabhan Maya, Chandrasekaran Mohandoss, Thirunageswaram Ramachandran Ramya, Klutto Milleth Jeniston Deviraj, Bhaskar Ramamurthi
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Patent number: 11536520Abstract: The present invention relates to a method of enhancing heat transfer of metallic surfaces by (1) fabricating hierarchical micro-nanostructured surfaces using etching processes, and (2) fabricating hydrophobic and hydrophilic regions, using a printing or a coating technique, followed by etching. The said method enhances the density of condensation sites over a metallic surface and additionally facilitates the departure of condensed droplets from the surface. Such a surface also enhances the sensible heat transfer characteristics, and improves the coefficient of performance (COP) of refrigeration systems for applications like atmospheric water generators, dehumidifiers, air conditioners, etc.Type: GrantFiled: February 2, 2019Date of Patent: December 27, 2022Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)Inventors: Pradeep Thalappil, Ankit Nagar, Ramesh Kumar, Srikrishnarka Pillalamarri
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Patent number: 11523429Abstract: Embodiments herein provide a method and system for managing Grant-free data transmission in a radio communication network. The proposed method includes composing, by a Base Station (BS), a Select Signal (SS) for a transceiver device, where the SS is configured to control a grant-free data transmission from the transceiver device. Further, the proposed method includes transmitting, by the BS, the SS to the transceiver device. Further, the proposed method includes receiving, by a transceiver device, the SS from the BS. Further, the proposed method includes decoding, by the transceiver device, the SS and furthermore, the proposed method includes controlling, by the transceiver device, a data transmission by one of activating the grant-free data transmission from the transceiver device in response to successful decoding of the SS, and deactivating the grant-free data transmission from the transceiver device in response to unsuccessful decoding of the SS.Type: GrantFiled: January 6, 2018Date of Patent: December 6, 2022Assignees: CENTRE OF EXCELLENCE IN WIRELESS TECHNOLOGY CEWIT, INDIAN INSTITUTE OF TECHNOLOGY MADRASInventors: Nithin Srinivasan, Dhivagar Baskaran, Chandrasekaran Mohandoss, Sunil Kaimalettu, Jeniston Deviraj Klutto Milleth, Bhaskar Ramamurthi
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Publication number: 20220354366Abstract: The present invention relates to a method for estimating lung morphometry based on aerosol deposition characteristics using an imaging means such as a gamma camera to scan the lungs. An adaptive image threshold technique is used to determine the ratio of deposition in central to peripheral region of the lung (C/P ratio). The morphometric parameters such as length and diameter of distal lung airways (P8 and P9 respectively) and mean alveolar diameter (dalv) are determined from aerosol retention data and clearance data.Type: ApplicationFiled: October 13, 2020Publication date: November 10, 2022Applicants: Indian Institute of Technology Madras, Sri Venkateswara Institute of Medical Sciences (SVIMS)Inventors: Mahesh V Panchagnula, Karthiga Devi S G, Mohan Alladi
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Publication number: 20220355298Abstract: A microfluidic analyser and a method of using the same is disclosed. The microfluidic analyser comprising a droplet generator, an analyte flow channel in fluid communication with said droplet generator at a first end, wherein said flow channel is configured to allow the droplets to flow in from the first end and exit from a second opposing end, said flow channel receiving at least one illumination channel positioned at a predetermined location between the first and the second end to excite contents of the droplets and said flow channel further comprising a plurality of receiving channels set at predetermined angles to an axis of the flow channel to interrogate at least one optical signal from the illuminated droplet traversing the flow channel and wherein said receiving channels terminate in a signal detector at the distal end away from the flow channel.Type: ApplicationFiled: July 3, 2020Publication date: November 10, 2022Applicants: CENTRE FOR CELLULAR AND MOLECULAR PLATFORMS, INDIAN INSTITUTE OF TECHNOLOGY MADRASInventors: Taslimarif SAIYED, Preksha GUPTA, Anil PRABHAKAR, Ambili MOHAN