Patents by Inventor Ram Gupta
Ram Gupta 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: 12006223Abstract: An activated carbon powder comprising activated carbon particles that comprise D-band carbon corresponding to a sp3 hybridized disordered carbon phase and G-band carbon corresponding to a sp2 hybridized graphitic phase at a controlled proportion. Additionally, the activated carbon particles comprise nitrogen at an amount that is in a range of about 0.3 atomic % to about 1.8 atomic % of the activated carbon particles, wherein at least some of the nitrogen atoms are substituted for carbon atoms in the crystal lattice structure of the G-band carbon. Also, the carbon particles have a surface area that is in a range of about 900 m2/g to about 2,500 m2/g, an average pore width in a range of about 1 nm to about 4 nm, a microporous surface area in a range of about 300 m2/g to about 1,350 m2/g, and a cumulative surface area of pores with a hydraulic radius in a range of 0.285 nm to 1.30 nm that is in a range of about 1,000 m2/g to about 3,000 m2/g.Type: GrantFiled: November 12, 2019Date of Patent: June 11, 2024Assignees: Pittsburg State University, Missouri Soybean Merchandising CouncilInventors: Ram Gupta, Pawan Kahol
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Patent number: 11855654Abstract: A successive approximation analog-to-digital converter includes a digital-to-analog converter DAC configured to receive a digital signal. First conversion units of the DAC are configured to sample an analog signal via a first switch and provide a first level voltage. Each first conversion unit includes a first capacitor array and a first switch array controlled from the digital signal. A single second conversion unit of the DAC is configured to provide a second level voltage. The second conversion unit includes a second capacitor array and a second switch array. A comparator operates to compare each of the first level voltages to the second level voltage and to provide a comparison signal based on each comparison and actuation of a set of third switches. A control circuit closes the first switches simultaneously and closes the third switches successively for the conversion of each sampled analog signal.Type: GrantFiled: March 29, 2022Date of Patent: December 26, 2023Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics International N.V.Inventors: Nicolas Moeneclaey, Sri Ram Gupta
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Patent number: 11713998Abstract: According to one aspect, an ambient-light sensor includes a photodiode configured to generate an electrical signal according to an ambient light, a capacitive-feedback transimpedance amplifier connected at its input to the photodiode for receiving a signal generated by the photodiode and for generating as an output an amplified signal from the signal generated by the photodiode, and an auto-zero switch at the input of the capacitive-feedback transimpedance amplifier. The ambient-light sensor further includes a control circuit including a bootstrap circuit configured to receive an initial positive- or zero-voltage logic control signal, and then generate, from this initial logic control signal, an adapted logic control signal having a first positive voltage level and a second negative voltage control level for controlling the auto-zero switch.Type: GrantFiled: May 18, 2022Date of Patent: August 1, 2023Assignees: STMICROELECTRONICS INTERNATIONAL N.V., STMICROELECTRONICS (GRENOBLE 2) SASInventors: Nicolas Moeneclaey, Sri Ram Gupta, Sarika Kushwaha
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Publication number: 20230168291Abstract: A measurement is made of jitter present in a jittery clock signal. A digital sinusoid generator circuit clocked by the jittery clock signal generates a pulse density modulation (PDM) signal corresponding to a sinusoid waveform. The PDM signal is converted by a sigma-delta modulator circuit to an oscillating frequency signal with an output of digital values digital values indicative of oscillating frequency signal phase. Responsive to the jittery clock signal, the digital values indicative of oscillating frequency signal phase are sampled. A digital differentiator circuit determines a digital difference between consecutive samples of the digital values indicative of oscillating frequency signal phase. The digital difference is processed by a digital signal processing circuit to generate a frequency spectrum and determine from signal-to-noise ratio a measurement of jitter in the jittery clock signal.Type: ApplicationFiled: October 19, 2022Publication date: June 1, 2023Applicant: STMicroelectronics International N.V.Inventors: Ankur BAL, Sri Ram GUPTA
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Publication number: 20220373388Abstract: According to one aspect, an ambient-light sensor includes a photodiode configured to generate an electrical signal according to an ambient light, a capacitive-feedback transimpedance amplifier connected at its input to the photodiode for receiving a signal generated by the photodiode and for generating as an output an amplified signal from the signal generated by the photodiode, and an auto-zero switch at the input of the capacitive-feedback transimpedance amplifier. The ambient-light sensor further includes a control circuit including a bootstrap circuit configured to receive an initial positive- or zero-voltage logic control signal, and then generate, from this initial logic control signal, an adapted logic control signal having a first positive voltage level and a second negative voltage control level for controlling the auto-zero switch.Type: ApplicationFiled: May 18, 2022Publication date: November 24, 2022Inventors: Nicolas Moeneclaey, Sri Ram Gupta, Sarika Kushwaha
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Publication number: 20220321140Abstract: A successive approximation analog-to-digital converter includes a digital-to-analog converter DAC configured to receive a digital signal. First conversion units of the DAC are configured to sample an analog signal via a first switch and provide a first level voltage. Each first conversion unit includes a first capacitor array and a first switch array controlled from the digital signal. A single second conversion unit of the DAC is configured to provide a second level voltage. The second conversion unit includes a second capacitor array and a second switch array. A comparator operates to compare each of the first level voltages to the second level voltage and to provide a comparison signal based on each comparison and actuation of a set of third switches. A control circuit closes the first switches simultaneously and closes the third switches successively for the conversion of each sampled analog signal.Type: ApplicationFiled: March 29, 2022Publication date: October 6, 2022Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics International N.V.Inventors: Nicolas MOENECLAEY, Sri Ram GUPTA
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Patent number: 11463098Abstract: An integrated circuit includes a successive approximation register (SAR) analog-to-digital converter (ADC). The ADC includes a bit step selector. During testing of the ADC, the bit step selector selects a number of bits to be tested for a next analog test voltage based on digital values that are within an integer delta value of most recent digital value for a most recent analog test voltage.Type: GrantFiled: June 8, 2021Date of Patent: October 4, 2022Assignee: STMICROELECTRONICS INTERNATIONAL N.V.Inventors: Ankur Bal, Sri Ram Gupta, Rupesh Singh
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Publication number: 20220306477Abstract: An activated carbon powder comprising activated carbon particles that comprise D-band carbon corresponding to a sp3 hybridized disordered carbon phase and G-band carbon corresponding to a sp2 hybridized graphitic phase at a controlled proportion. Additionally, the activated carbon particles comprise nitrogen at an amount that is in a range of about 0.3 atomic % to about 1.8 atomic % of the activated carbon particles, wherein at least some of the nitrogen atoms are substituted for carbon atoms in the crystal lattice structure of the G-band carbon. Also, the carbon particles have a surface area that is in a range of about 900 m2/g to about 2,500 m2/g, an average pore width in a range of about 1 nm to about 4 nm, a microporous surface area in a range of about 300 m2/g to about 1,350 m2/g, and a cumulative surface area of pores with a hydraulic radius in a range of 0.285 nm to 1.30 nm that is in a range of about 1,000 m2/g to about 3,000 m2/g.Type: ApplicationFiled: November 12, 2019Publication date: September 29, 2022Inventors: Ram Gupta, Pawan Kahol
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Publication number: 20220212375Abstract: A stabilizer composition for producing a polymeric hollow article in a rotomolding process has stabilizing amounts of: (i) at least one chroman-based compound according to Formula (V): wherein at least one instance of R21 is OR27, R27 is COR?? or Si(R28)3, and R??, R22, R23 R24, R25 and R26 are as defined herein; (ii) at least one phosphite or phosphonite; and (iii) a basic co-additive selected from alkali metal or alkaline metal salts of higher fatty acids. A polymeric hollow article is made by a process comprising: a) filling a mold with a polyolefin and a stabilizing amount of the stabilizer composition described herewith; b) rotating the mold around at least one axis while heating the mold in an oven, thereby fusing the composition and spreading it to the walls of the mold; c) cooling the mold; and d) opening the mold to remove the resulting polymeric hollow article.Type: ApplicationFiled: March 17, 2022Publication date: July 7, 2022Inventors: Ram GUPTA, Sari-Beth SAMUELS, Thomas STEELE, J. Mon Hei ENG
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Publication number: 20220153959Abstract: Polyolefin compositions of a polyolefin, a chroman-based compound according to Formula (V): and a basic co-additive selected from alkali metal or alkaline metal salts of higher fatty acids are disclosed. Amounts of the chroman-based compound and the basic co-additive are selected to enhance processing stability of the polyolefin composition when subjected to extrusion, even in the absence of antistatic agents and organic phosphites and phosphonites. Masterbatch compositions of a first polyolefin, the chroman-based compound and the basic co-additive can be blended with a second polyolefin, identical to, or compatible with, the first polyolefin to form a stabilized polyolefin composition. Molded articles produced by molding the polyolefin compositions are also disclosed. R21, R22, R23, R24, R25, R26, and R27 are also described.Type: ApplicationFiled: February 3, 2022Publication date: May 19, 2022Inventors: Ram GUPTA, Sari-Beth SAMUELS, J. Mon Hei ENG, Thomas STEELE
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Patent number: 11312043Abstract: The cycle time of polymer compositions subjected to a rotomolding process is improved (i.e.Type: GrantFiled: December 12, 2011Date of Patent: April 26, 2022Assignee: CYTEC TECHNOLOGY CORP.Inventors: Ram Gupta, Sari-Beth Samuels, Thomas Steele, J. Mon Hei Eng
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Patent number: 11267951Abstract: Stabilizer compositions having a chroman-based compound according to Formula (V): and their use in processes for stabilizing organic materials subject to degradation and/or discoloration due to the effects from light, oxygen and heat, and in processes for producing articles from organic materials blended therewith, are provided herein.Type: GrantFiled: June 13, 2012Date of Patent: March 8, 2022Assignee: CYTEC TECHNOLOGY CORP.Inventors: Ram Gupta, Sari-Beth Samuels, J. Mon Hei Eng, Thomas Steele
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Publication number: 20220006467Abstract: An integrated circuit includes a successive approximation register (SAR) analog-to-digital converter (ADC). The ADC includes a bit step selector. During testing of the ADC, the bit step selector selects a number of bits to be tested for a next analog test voltage based on digital values that are within an integer delta value of most recent digital value for a most recent analog test voltage.Type: ApplicationFiled: June 8, 2021Publication date: January 6, 2022Applicant: STMICROELECTRONICS INTERNATIONAL N.V.Inventors: Ankur BAL, Sri Ram GUPTA, Rupesh SINGH
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Patent number: 11124606Abstract: The present invention relates to reaction products H of at least one cyclic urea U, at least one multifunctional aldehyde A and at least one polyol P, process for preparing thereof and compositions comprising thereof.Type: GrantFiled: September 13, 2019Date of Patent: September 21, 2021Assignee: ALLNEX NETHERLANDS B.V.Inventors: Urvee Y. Treasurer, Zachary Wilde, Lawrence Flood, Sarah Quinn, Colin Brogan, Ram Gupta
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Patent number: 10827404Abstract: A method includes obtaining client information from a set of access points. The client information indicates client devices detected by each access point in the set of access points. In some implementations, the method includes grouping the set of access points into a plurality of access point groups based on the client information. The grouping allows each client device to associate with an access point from at least two different access point groups. The method includes, for a first access point group of the plurality of access point groups, migrating the client devices associated with access points in the first access point group to access points in a second access point group of the plurality of access point groups. In some implementations, the method includes configuring the access points in the first access point group while maintaining configuration of the access points in the second access point group.Type: GrantFiled: January 11, 2019Date of Patent: November 3, 2020Assignee: CISCO TECHNOLOGY, INC.Inventors: Ram Gupta, Aditya Kadur, Mark Hendrick, Jr., Bo Chen, Apurv Bhartia, Derrick Lyndon Pallas, Chun Meng Yu
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Patent number: 10651868Abstract: This application relates to modulators for providing time-encoded signals and in particular PWM signals. A modulator (200) has a first controlled oscillator (201P) configured to receive a first oscillator driving signal and output a first oscillation signal (S1). An accumulator (204) is configured to provide an accumulator value (VAL) based on a number of pulses of the first oscillation signal and a hysteretic comparator (205) alternates between first and second output states based on a hysteretic comparison of the accumulator value with a defined reference (REF). The first oscillator driving signal is based on a combination of an input signal and a feedback signal derived from an output of the hysteretic comparator.Type: GrantFiled: December 27, 2018Date of Patent: May 12, 2020Assignee: Cirrus Logic, Inc.Inventor: Sri Ram Gupta
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Patent number: 10647870Abstract: The invention relates to a coating composition comprising a reaction product UA of at least one multifunctional aldehyde A with at least one cyclic urea U, and a crosslinkable resin having at least one kind of functional groups selected from the group consisting of hydroxyl functional groups, acid functional groups, amide functional groups, amino functional groups, imino functional groups, mercaptan functional groups, phosphine functional groups, and carbamate functional groups, characterised in that the degree of etherification, measured as the ratio «(13 O—R)/«(U) of the amount of substance n(—O—R) of alkoxy groups as substituents of the aldehyde carbon atoms of the multifunctional aldehyde chemically bound in the reaction product UA to the amount of substance «(U) of cyclic urea U chemically bound in the reaction products, is less than 0.01 mol/mol, and to a process for the preparation of the reaction product UA.Type: GrantFiled: November 29, 2018Date of Patent: May 12, 2020Assignee: ALLNEX NETHERLANDS B.V.Inventors: Ram Gupta, Lawrence Flood, Urvee Treasurer, Barry Lawless, Colin Brogan
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Publication number: 20200100155Abstract: A method includes obtaining client information from a set of access points. The client information indicates client devices detected by each access point in the set of access points. In some implementations, the method includes grouping the set of access points into a plurality of access point groups based on the client information. The grouping allows each client device to associate with an access point from at least two different access point groups. The method includes, for a first access point group of the plurality of access point groups, migrating the client devices associated with access points in the first access point group to access points in a second access point group of the plurality of access point groups. In some implementations, the method includes configuring the access points in the first access point group while maintaining configuration of the access points in the second access point group.Type: ApplicationFiled: January 11, 2019Publication date: March 26, 2020Inventors: Ram Gupta, Aditya Kadur, Mark Hendrick, JR., Bo Chen, Apurv Bhartia, Derrick Lyndon Pallas, Chun Meng Yu
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Publication number: 20200002475Abstract: The present invention relates to reaction products H of at least one cyclic urea U, at least one multifunctional aldehyde A and at least one polyol P, process for preparing thereof and compositions comprising thereof.Type: ApplicationFiled: September 13, 2019Publication date: January 2, 2020Inventors: Urvee Y. TREASURER, Zachary WILDE, Lawrence FLOOD, Sarah QUINN, Colin BROGAN, Ram GUPTA
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Patent number: 10471005Abstract: Present invention relates to a low dose pharmaceutical composition, preferably oral composition comprising therapeutically effective amount of [(2-hydroxy-4-oxo-6,7,8,9-tetrahydro-4H,5H-10-thia-1,4a-diaza-benzo[a]azulene-3-carbonyl)-amino]-acetic acid (compound A) in the range of 2.5 mg to 60 mg. Present invention also relates to a method of treating inflammatory bowel disease in a mammal by administrating said low dose pharmaceutical composition. Further, present invention relates to a use of the compound A for the preparation of low dose pharmaceutical composition for the treatment of inflammatory bowel disease in a mammal.Type: GrantFiled: February 22, 2017Date of Patent: November 12, 2019Assignee: Torrent Pharmaceuticals LimitedInventors: Chaitanya Dutt, Vijay Chauthaiwale, Ram Gupta, Shitalkumar Zambad, Shailesh Deshpande, Jignesh Kotecha, Ramesh Gupta, Sanjay Srivastava, Laxmikant Chhipa, Jaya Abraham