Patents Assigned to Indian Institute of Technology Delhi
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Patent number: 10891559Abstract: Systems and methods for classifying binary data based training data having a predefined sample size is obtained. The training data is composed of separable binary datasets. An exact bound on Vapnik-Chervonenkis (VC) dimension of a classifier for the training data is determined. The exact bound is based one or more variables defining the hyperplane. The exact bound may be minimized for generating a classifier for predicting one class to which a given data sample of the training data belongs.Type: GrantFiled: December 12, 2014Date of Patent: January 12, 2021Assignee: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventor: Jayadeva
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Publication number: 20200273449Abstract: In the present invention, a method for searching multilingual keywords in mixlingual speech corpus is proposed. This method is capable of searching audio as well as text keywords. The capability of audio search enables it to search out-of-vocabulary (OOV) words. The capability of searching text keywords enables it to perform semantic search. An advanced application of searching keyword translations in mixlingual speech corpus is also possible within posteriorgram framework with this system. Also, a technique for combining information from text and audio keywords is given which further enhances the search performance. This system is based on multiple posteriorgrams based on articulatory classes trained with multiple languages.Type: ApplicationFiled: September 10, 2018Publication date: August 27, 2020Applicants: Indian Institute of Technology, Delhi, Centre for Development of TelematicsInventors: Arun Kumar, Abhimanyu Popli
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Publication number: 20200197899Abstract: The present invention relates to different liquid distributors for monolith in multiphase applications. The present invention more particularly relates to distributor devices in the form of a single injection and multiple injection pipe distributors; shower head distributor comprising a plurality of holes for plunging liquid; a packing of spherical particles with a pre-distributor to split the liquid into manifold streams, before entry into the monolith bed. The present invention provides liquid distributors for monolith in multiphase applications providing improved liquid distribution into the monolith bed resulting in uniform fluid flow in each channel so as to make maximum use of the catalyst surface area.Type: ApplicationFiled: June 27, 2018Publication date: June 25, 2020Applicant: INDIAN INSTITUTE OF TECHNOLOGY, DELHIInventors: Shantanu Roy, Deepali Chugh
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Patent number: 10690662Abstract: The subject matter discloses systems and methods for magnetic capturing of rare cells from a liquid sample. The system includes a capture chip (104) having a longitudinal channel (208) comprising a first part (304) and a second part (306). The capture chip (104) has a capture well (302) near an end of the second part (306) closer to an interfacing region between the first part (304) and the second part (306). The system includes a first set (126) of multiple rows of magnets for the magnetic capturing of the rare cells in the first part (304) of the longitudinal channel (208), where a first row (132) of the first set (126) of multiple rows has magnets that span a length of the first part (304) of the longitudinal channel (208) and each subsequent row of the first set (126) of multiple rows has one magnet less than a previous row.Type: GrantFiled: November 6, 2015Date of Patent: June 23, 2020Assignee: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventors: Ravikrishnan Elangovan, Vivekanandan Perumal, Shalini Gupta, Saurabh Singh
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Publication number: 20200140480Abstract: The present invention relates to an ionic liquid based support of Formula-I: wherein: X? is a heteroatom containing cationic part; W is a halogen containing polymeric solid support; n is an integer in the range of 2 to 8; Y is a hydrophobic anion; R is selected from CO—Z or Z; Z is selected from the group consisting of —Cl, —Br, —OH, —O-Alkyl and combinations thereof. The present invention also relates to a process for preparation of said ionic liquid based support used for di, oligo or polypeptide manufacture.Type: ApplicationFiled: December 28, 2017Publication date: May 7, 2020Applicant: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventors: Sreedevi UPADHYAYULA, Tanmoy PATRA, Subhasis PAUL
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Patent number: 10365263Abstract: Methods and systems for predicting crude oil blend compatibility and optimizing blends for increasing heavy crude oil processing are described. The method includes receiving ratios of physical parameters of crude oils for optimization of crude oil blend. The physical parameter ratios are based on Kinematic Viscosity (V), Sulphur (S), Carbon Residue (C), and American Petroleum Institute (API) gravity. The crude oil blend compatibility (K model) is determined and generated using the physical parameter ratios. The K model is developed by coefficients obtained by regression analysis between the ratios of physical parameters of known crude oils and composite compatibility measure determined from multiple compatibility test results of the known crude oils. The predicted crude oil blend compatibility can be used for optimizing heavy crude oil processing.Type: GrantFiled: March 27, 2018Date of Patent: July 30, 2019Assignees: Indian Institute of Technology, Delhi, Bharat Petroleum Corporation LimitedInventors: Rajeev Kumar, Ravi Kumar Voolapalli, Pranab Kumar Rakshit, Sanjay Bhargava, Sreedevi Upadhyayula
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Patent number: 10330653Abstract: The present invention relates to techniques for determining unknown concentration of constituents of any known mixture. The said techniques comprising: obtaining a plurality of chromatograms relating to known concentration of known mixtures and at least one chromatogram relating to unknown concentration of the known mixture; converting each of the chromatograms into signal vectors; condensing the dimensions of each of the signal vectors for obtaining low dimensional signal vectors; processing the low dimensional signal vectors representing the chromatograms relating to known concentrations to obtain output values; and processing the at least one low dimensional signal vector representing the chromatogram relating to unknown concentration by utilizing the obtained output values for determining the unknown concentration of each of the constitutes of the known mixture.Type: GrantFiled: March 2, 2015Date of Patent: June 25, 2019Assignee: INDIAN INSTITUTE OF TECHNOLOGY, DELHIInventors: Jayadeva Dr., Sanjit Singh Batra, Munishwar Nath Gupta, Joyeeta Mukherjee
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Patent number: 10301373Abstract: The present disclosure provides a process for improved production and extraction of recombinant human serum albumin (rHSA) using E. coli as a host system. The process of the instant disclosure provides enhanced recovery of soluble and functional rHSA over conventional known methods.Type: GrantFiled: May 5, 2017Date of Patent: May 28, 2019Assignee: Indian Institute of Technology, DelhiInventors: Tapan Kumar Chaudhuri, Ashima Sharma
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Patent number: 10193728Abstract: Technologies are generally provided to enable the peak-to-average power ratio (PAPR) in OFDM communication systems to be adjusted to a particular level. In some examples, an N-symbol transmission vector may be partitioned into k equal partitions, a Fast Fourier Transform (FFT) may be performed on each partition, and an interleaving union of FFT results may be generated. The results of the interleaving union may be used for transmission after mapping them to the M subcarriers and performing an M-point IFFT. On the receiver side, FFT may be performed on M subcarriers, where each of L end user devices may be assigned N subcarriers out of M=N*L available subcarriers. The N subcarriers of the FFT results may be de-mapped and subjected to an interleaving partition. Subsequently, an Inverse FFT (IFFT) may be performed on each partition and results of the IFFT operation employed for symbol detection.Type: GrantFiled: November 16, 2013Date of Patent: January 29, 2019Assignee: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventors: Himanshu Nayar, Vinay Joseph Ribeiro, Ranjan Kumar Mallik
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Publication number: 20180365810Abstract: Technologies are generally described to recover diffraction limited amplitude and phase images of objects from single shot image plane hologram data. In some examples, an image processor may receive digital hologram data derived from interference between a reference signal and an unknown object image. The image processor may then attempt to recover a version of the unknown object image by minimizing a cost function associated with the reference signal and the digital hologram data. The cost function may include a data-fit cost component and a constraint cost component, and the image processor may iteratively minimize the cost function by alternately minimizing the data-fit cost component and the constraint cost component.Type: ApplicationFiled: December 12, 2016Publication date: December 20, 2018Applicant: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventors: Kedar Bhalchandra KHARE, Joby Joseph, Mandeep Singh
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Publication number: 20180305543Abstract: The disclosure describes composite fibers reinforced with inorganic nanostructures of high aspect ratio with homogeneous dispersion and alignment along the fiber axis and a process for producing said composite fibers.Type: ApplicationFiled: October 20, 2016Publication date: October 25, 2018Applicant: Indian Institute of Technology DelhiInventors: Ashwini Kumar Agrawal, Manjeet Jassal, Ratyakshi Nain, Amol Gorakh Thite, Suchismita Bhabani, Kiran Yadav
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Patent number: 9967028Abstract: Diversity combining schemes have been extensively used in wireless and free space optical communication systems. The present invention of a system and method for free space optical communications where multiple gain combiner (MGC) provides a better performance as compared to selection combining (SC) and equal gain combining (EGC) and can also be used for wireless applications. It also gives a cost effective solution with a minimal degradation in quality when maximal ratio combining (MRC) is compared in terms of hardware complexity and implementation cost. There is no need for present channel state information. Also, Adaptive weight adjustment is not required in present invention. Therefore, the MGC of system and method disclosed in the present invention is a simple, cost effective and high performance diversity combiner.Type: GrantFiled: October 20, 2015Date of Patent: May 8, 2018Assignee: Indian Institute of Technology DelhiInventors: Vinod Chandra, Devi Chadha, Vineeta Dubey
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Patent number: 9947118Abstract: Techniques described herein are generally related to non-interferometric phase measurements of an optical signal. The various described techniques may be applied to methods, systems, devices or combinations thereof. Some methods for determining phase data of the optical signal may include transmitting the optical signal through a first optical element and obtaining first intensity data at a first focal plane of the first optical element by an optical sensor. Example methods may also include transmitting the optical signal through a second optical element. The second optical element may include a phase transformation mask. Example methods may further include obtaining a second intensity data at a second focal plane of the second optical element by the optical sensor and determining the phase data for the optical signal based on the first intensity data and the second intensity data.Type: GrantFiled: May 27, 2015Date of Patent: April 17, 2018Assignee: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventors: Kedar Bhalchandra Khare, Manoj Kumar Sharma, Paramasivam Senthilkumaran
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Publication number: 20170074840Abstract: The present invention relates to techniques for determining unknown concentration of constituents of any known mixture. The said techniques comprising: obtaining a plurality of chromatograms relating to known concentration of known mixtures and at least one chromatogram relating to unknown concentration of the known mixture; converting each of the chromatograms into signal vectors; condensing the dimensions of each of the signal vectors for obtaining low dimensional signal vectors; processing the low dimensional signal vectors representing the chromatograms relating to known concentrations to obtain output values; and processing the at least one low dimensional signal vector representing the chromatogram relating to unknown concentration by utilizing the obtained output values for determining the unknown concentration of each of the constitutes of the known mixture.Type: ApplicationFiled: March 2, 2015Publication date: March 16, 2017Applicant: INDIAN INSTITUTE OF TECHNOLOGY, DELHIInventors: Jayadeva DR., Sanjit Singh BATRA, Munishwar Nath GUPTA, Joyeeta MUKHERJEE
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Patent number: 9553647Abstract: A system and method for a single spatial stream based multiple-input multiple-output (MIMO) communication system in wireless MIMO channels with a non-zero mean or a fixed component is provided which utilizes deterministic beamforming in the transmitter and deterministic combining at the receiver. For transmission and reception of a data over MIMO channels, the method and system avoids the requirement of knowledge of the instantaneous channel values at the transmitter and the receiver. By assuming perfect knowledge of the mean value of the channel matrix at the transmitter, a beamforming vector is obtained for the transmitter. The receiver utilizes deterministic receive weights which are chosen using the channel statistics.Type: GrantFiled: February 27, 2012Date of Patent: January 24, 2017Assignee: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventors: Ranjan K. Mallik, Manav R. Bhatnagar, Jack Winters
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Patent number: 9422354Abstract: The present invention relates to methods for purification of recombinant human granulocyte colony stimulating factor (rHu GCSF). The present invention particularly relates to methods for purification of rHu GCSF involving techniques such as aqueous two phase extraction and multimodal chromatographic purification to obtain highly purified rHu GCSF. The present invention also provides a pharmaceutical composition comprising the rHu GCSF, purified using the methods described herein.Type: GrantFiled: June 19, 2013Date of Patent: August 23, 2016Assignee: Indian Institute of Technology DelhiInventors: Darpan Gupta, Rahul Bhambure, Rohit Sharma, Anurag Singh Rathore
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Patent number: 9414761Abstract: The present subject matter relates to processing of Electrocardiogram (ECG) signals, and in particular, relates to identifying a QRS complex in an ECG signal. The method includes receiving, and filtering the ECG signal by passing through at least one of a first low-pass filter and a high-pass filter to obtain a filtered ECG signal. The filtered ECG signal is processed based on a moving average technique. Further, a search region is identified in the processed ECG signal, and a maximum amplitude peak is identified in a time interval of the filtered ECG signal that corresponds to a time span of the search region of the processed ECG signal. The maximum amplitude peak is an R peak of the QRS complex. Subsequently, a Q peak and an S peak of the QRS complex is identified based on the R peak.Type: GrantFiled: December 17, 2014Date of Patent: August 16, 2016Assignee: INDIAN INSTITUTE OF TECHNOLOGY DELHIInventors: Basabi Bhaumik, Sanjeev Kumar Jain
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Publication number: 20160173310Abstract: Technologies are generally provided to enable the peak-to-average power ratio (PAPR) in OFDM communication systems to be adjusted to a particular level. In some examples, an N-symbol transmission vector may be partitioned into k equal partitions, a Fast Fourier Transform (FFT) may be performed on each partition, and an interleaving union of FFT results may be generated. The results of the interleaving union may be used for transmission after mapping them to the M subcarriers and performing an M-point IFFT. On the receiver side, FFT may be performed on M subcarriers, where each of L end user devices may be assigned N subcarriers out of M=N*L available subcarriers. The N subcarriers of the FFT results may be de-mapped and subjected to an interleaving partition. Subsequently, an Inverse FFT (IFFT) may be performed on each partition and results of the IFFT operation employed for symbol detection.Type: ApplicationFiled: November 16, 2013Publication date: June 16, 2016Applicant: Indian Institute of Technology DelhiInventors: Himanshu Nayar, Vinay Joseph Ribeiro, Ranjan Kumar Mallik
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Patent number: 9135682Abstract: Techniques described herein are generally related to high resolution image recovery of objects from digital holograms. The various described techniques may be applied to methods, systems, devices or combinations thereof. Some described methods for recovering an image may include receiving reference beam data that corresponds to a reference interference pattern and receiving hologram data corresponding to an object. The method may also include applying a cost function to the hologram data and the reference beam data to determine the object image data associated with the object. The cost function may include a smoothness constraint applied to the object image data. The cost function can be iteratively reduced to obtain object image data corresponding to the object and the obtained object image data can be processed to recover the image of the object from single shot holograms with image resolution greater than conventional holographic imaging system.Type: GrantFiled: March 15, 2013Date of Patent: September 15, 2015Assignee: Indian Institute of Technology DelhiInventors: Kedar Bhalchandra Khare, Joby Joseph, Samsheerali Pothiyil Thottiparambil
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Patent number: 9042211Abstract: A method implemented in a multi-user communication system is described for performing far-end crosstalk (FEXT) cancellation for each victim user. The method comprises performing dynamic programming to allocate resources according to (N?1) normalized disturber coupling values and difference rate function values associated with N total users in the system involved in partial FEXT cancellation. In accordance with some embodiments, dynamic programming comprises selecting a tone and one or more disturbers to be cancelled for the tone.Type: GrantFiled: December 15, 2010Date of Patent: May 26, 2015Assignees: IKANOS COMMUNICATIONS, INC., INDIAN INSTITUTE OF TECHNOLOGY DELHI DEPARTMENT OF ELECTRICAL ENGINEERINGInventors: Pravesh Biyani, Laurent Francis Alloin, Shankar Prakriya, Surendra Prasad