Patents by Inventor Sandeep Dhawan

Sandeep Dhawan 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).

  • Patent number: 11501091
    Abstract: A real-time speech-to-speech generator and sign gestures converter system is disclosed. The system is still challenging for deaf or hearing impaired people. Embodiments of the invention provide direct speech to speech translation system and further conversion to sign gestures is disclosed. Direct speech to speech translation and further sign gesture conversion uses a one-tier approach, creating a unified-model for whole application. The single-model ecosystem takes in audio (MEL spectrogram) as an input and gives out audio (MEL spectrogram) as an output to a speech-sign converter device with a display. This solves the bottleneck problem by converting the translated speech directly to sign language gesture from first language with emotion by preserving phonetic information along the way. This model needs parallel audio samples in two languages.
    Type: Grant
    Filed: June 11, 2022
    Date of Patent: November 15, 2022
    Inventor: Sandeep Dhawan
  • Publication number: 20220327294
    Abstract: Areal-time speech-to-speech generator and sign gestures converter system is disclosed. The system is still challenging for deaf or hearing impaired people. Embodiments of the invention provide direct speech to speech translation system and further conversion to sign gestures is disclosed. Direct speech to speech translation and further sign gesture conversion uses a one-tier approach, creating a unified-model for whole application. The single-model ecosystem takes in audio (MEL spectrogram) as an input and gives out audio (MEL spectrogram) as an output to a speech-sign converter device with a display. This solves the bottleneck problem by converting the translated speech directly to sign language gesture from first language with emotion by preserving phonetic information along the way. This model needs parallel audio samples in two languages.
    Type: Application
    Filed: June 11, 2022
    Publication date: October 13, 2022
    Inventor: Sandeep Dhawan
  • Patent number: 11361780
    Abstract: Information loss in speech to text conversion and Inability to preserve vocal emotion information without changing the artificial intelligence model infrastructure in a conventional speech to speech translation system are essential drawback of the conventional techniques. Embodiments of the invention provide direct speech to speech translation system is disclosed. Direct speech to speech translation system uses a one-tier approach, creating a unified-model for whole application. The single-model ecosystem takes in audio (mel spectrogram) as an input and gives out audio (mel spectrogram) as an output. This solves the bottleneck problem by not converting speech directly to text but having text as a byproduct of speech to speech translation, preserving phonetic information along the way. This model also uses pre-processing and post-processing scripts but only for the whole model. This model needs parallel audio samples in two languages.
    Type: Grant
    Filed: December 24, 2021
    Date of Patent: June 14, 2022
    Inventors: Sandeep Dhawan, Kapil Dhawan, Dennis Reutter, Chris Beckman, Ahsan Memon
  • Publication number: 20220115028
    Abstract: Information loss in speech to text conversion and Inability to preserve vocal emotion information without changing the artificial intelligence model infrastructure in a conventional speech to speech translation system are essential drawback of the conventional techniques. Embodiments of the invention provide direct speech to speech translation system is disclosed. Direct speech to speech translation system uses a one-tier approach, creating a unified-model for whole application. The single-model ecosystem takes in audio (mel spectrogram) as an input and gives out audio (mel spectrogram) as an output. This solves the bottleneck problem by not converting speech directly to text but having text as a byproduct of speech to speech translation, preserving phonetic information along the way. This model also uses pre-processing and post-processing scripts but only for the whole model. This model needs parallel audio samples in two languages.
    Type: Application
    Filed: December 24, 2021
    Publication date: April 14, 2022
    Inventors: Sandeep Dhawan, Kapil Dhawan, Dennis Reutter, Chris Beckman, Ahsan Memon
  • Patent number: 10196494
    Abstract: In one embodiment, a polymeric sheet, comprising: a foamed layer comprising a polymeric material, wherein the polymeric material has a Tg of greater than or equal to 100° C.; and wherein the sheet has a weight reduction of 10% to 60%, as compared to a solid sheet of the same geometry and size formed from the same polymeric material. The sheet, at the thickness of 1.0 mm, has a smoke density of less than or equal to 200 particles after four minutes of burning according to ASTM E662-06. The sheet is thermoformable.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: February 5, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Constantin Donea, Safwat E. Tadros, Hendrik Cornelis Jacobus de Nooijer, Christianus Johannes Jacobus Maas, Michael M. Laurin, Sandeep Dhawan, Shuailei Ma, Michael J. Davis, Jian Zhou, Yuanqing He
  • Publication number: 20160002429
    Abstract: In one embodiment, a polymeric sheet, comprising: a foamed layer comprising a polymeric material, wherein the polymeric material has a Tg of greater than or equal to 100° C.; and wherein the sheet has a weight reduction of 10% to 60%, as compared to a solid sheet of the same geometry and size formed from the same polymeric material. The sheet, at the thickness of 1.0 mm, has a smoke density of less than or equal to 200 particles after four minutes of burning according to ASTM E662-06. The sheet is thermoformable.
    Type: Application
    Filed: February 21, 2014
    Publication date: January 7, 2016
    Inventors: Constantin Donea, Safwat E. Tadros, Hendrik Cornelis Jacobus de Nooijer, Christianus Johannes Jacobus Maas, Michael M. Laurin, Sandeep Dhawan, Shuailei Ma, Michael J. Davis, Jian Zhou, Yuanqing He
  • Patent number: 8138233
    Abstract: In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: March 20, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Parminder Agarwal, Kristen Cohoon-Brister, Sandeep Dhawan, Robert Russell Gallucci, Ganesh Kannan, Kenneth Frederick Miller, Dhaval Shah
  • Publication number: 20110124821
    Abstract: In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers.
    Type: Application
    Filed: February 4, 2011
    Publication date: May 26, 2011
    Applicant: SABIC INNOVATIVE PLASTICS IP B.F.
    Inventors: Parminder Agarwal, Kristen Cohoon, Sandeep Dhawan, Robert Russell Gallucci, Ganesh Kannan, Kenneth Frederick Miller, Dhaval Shah
  • Patent number: 7902263
    Abstract: The invention relates to a process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component. In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: March 8, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Parminder Agarwal, Kristen Cohoon, Sandeep Dhawan, Robert Russell Gallucci, Ganesh Kannan, Kenneth Frederick Miller, Dhaval Shah
  • Publication number: 20110003964
    Abstract: The invention relates to a process for making modified polybutylene terephththalate random copolymers from a polyethylene terephthalate component. The invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butanediol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from the process.
    Type: Application
    Filed: September 2, 2010
    Publication date: January 6, 2011
    Inventors: Parminder AGARWAL, Kristen COHOON, Sandeep DHAWAN, Robert Russell GALLUCCI, Ganesh KANNAN, Kenneth Frederick MILLER, Deepak RAMARAJU, Gomatam Raghavan RAVI, Dhaval SHAH
  • Patent number: 7858176
    Abstract: The present invention relates to a multilayer article, wherein said multilayer article comprises: (i) a first layer comprising an acrylic resin; (ii) at least one translucent second layer comprising (a) an acrylic resin, optionally further comprising an impact modifier; (b) a rubber modified thermoplastic resin composition; (c) optionally a rheology modifier; and (d) a visual effects additive; (iii) a third layer comprising an acrylonitrile-butadiene-styrene (ABS) resin; and (iv) an optional backing layer comprising either a thermosetting polymer substrate, optionally fiber-reinforced, or glass filled ABS resin.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: December 28, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Sandeep Dhawan, Douglas W. Howie, Jr.
  • Patent number: 7799836
    Abstract: The invention relates to a process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component. The invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butanediol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from the process.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: September 21, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Parminder Agarwal, Kristen Cohoon, Sandeep Dhawan, Robert Russell Gallucci, Ganesh Kannan, Kenneth Frederick Miller, Deepak Ramaraju, Gomatam Raghavan Ravi, Dhaval Shah
  • Publication number: 20100093915
    Abstract: A method is disclosed for preparing an acrylic-styrene-acrylonitrile (ASA) resin, which comprises the steps of: (a) polymerizing a mixture comprising at least one acrylate monomer and at least one polyethylenically unsaturated monomer to form a rubber substrate, followed by (b) polymerizing a mixture of monomers in the presence of the rubber substrate, at least one of which monomers is selected from the group consisting of vinyl aromatic monomers and at least one of which monomers is selected from the group consisting of monoethylenically unsaturated nitrile monomers, and optionally followed by (c) polymerizing one or more monomers in at least one subsequent stage in the presence of the rubber substrate from (b), wherein the one or more monomers comprise at least one monomer selected from the group consisting of (C1-C12)alkyl- and aryl-(meth)acrylate monomers; wherein the amount of unreacted polyethylenically unsaturated monomer remaining in the rubber substrate before step (b) is less than 5.
    Type: Application
    Filed: May 20, 2009
    Publication date: April 15, 2010
    Inventors: Albin Peter Berzinis, Sandeep Dhawan, Viswanathan Kalyanaraman
  • Publication number: 20100004377
    Abstract: Disclosed are compositions comprising (i) a rigid thermoplastic resin comprising structural units derived from a (C1-C12)alkyl (meth)acrylate monomer, and optionally a second monomer selected from the group consisting of a vinyl aromatic monomer, a monoethylenically unsaturated nitrile monomer and mixtures thereof, and (ii) a fluoropolymer additive comprising 30 wt. % to 70 wt. % of a fluoropolymer and 70 wt. % to 30 wt. % of a carrier polymer comprising structural units derived from a vinyl aromatic monomer, or a monoethylenically unsaturated nitrile monomer, or mixtures thereof, wherein the fluoropolymer is at least partially encapsulated by the carrier polymer and wherein the amount of fluoropolymer present in the composition is in a range of 2 parts by weight (pbw) to 25 pbw based on 100 pbw of the composition, and wherein the composition is free of both rubber component and filler. Articles made from the compositions and a method to improve physical properties in the compositions are also disclosed.
    Type: Application
    Filed: July 27, 2009
    Publication date: January 7, 2010
    Inventors: Sandeep Dhawan, Satish Kumar Gaggar
  • Publication number: 20080305323
    Abstract: The present invention relates to a multilayer article, wherein said multilayer article comprises: (i) a first layer comprising an acrylic resin; (ii) at least one translucent second layer comprising (a) an acrylic resin, optionally further comprising an impact modifier; (b) a rubber modified thermoplastic resin composition; (c) optionally a rheology modifier; and (d) a visual effects additive; (iii) a third layer comprising an acrylonitrile-butadiene-styrene (ABS) resin; and (iv) an optional backing layer comprising either a thermosetting polymer substrate, optionally fiber-reinforced, or glass filled ABS resin.
    Type: Application
    Filed: August 14, 2008
    Publication date: December 11, 2008
    Inventors: Sandeep Dhawan, Douglas W. Howie, JR.
  • Publication number: 20080283189
    Abstract: Disclosed is a method for reducing stringiness during hot plate welding of an article comprising a resinous composition which comprises at least one step of contacting with water a surface of the article to be welded. The method also results in improved cycle time for preparation of the final article.
    Type: Application
    Filed: November 1, 2007
    Publication date: November 20, 2008
    Applicant: SABIC INNOVATIVE PLASTICS IP BV
    Inventors: Sandeep Dhawan, Shripathy Vilasagar
  • Patent number: 7413624
    Abstract: The present invention relates to a method for making a multilayer article, wherein said multilayer article comprises: (i) a first layer comprising an acrylic resin; (ii) at least one translucent second layer comprising (a) an acrylic resin, optionally further comprising an impact modifier; (b) a rubber modified thermoplastic resin composition; (c) optionally a rheology modifier; and (d) a visual effects additive; (iii) a third layer comprising an acrylonitrile-butadiene-styrene (ABS) resin; and (iv) an optional backing layer comprising either a thermosetting polymer substrate, optionally fiber-reinforced, or glass filled ABS resin; and wherein said method comprises the steps of: (I) drying the components of the second layer, either individually or in combination, to a volatiles content of less than 0.06 weight % prior to processing a mixture comprising said components to form said second layer; and (II) coextruding the second and third layers, and optionally the first layer to form the multilayer article.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: August 19, 2008
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Sandeep Dhawan, Douglas W. Howie, Jr.
  • Publication number: 20070208160
    Abstract: The invention relates to a process for making modified polybutylene terephththalate random copolymers from a polyethylene terephthalate component. The invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butanediol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from the process.
    Type: Application
    Filed: January 24, 2007
    Publication date: September 6, 2007
    Inventors: Parminder Agarwal, Kristen Cohoon, Sandeep Dhawan, Robert Russell Gallucci, Ganesh Kannan, Kenneth Frederick Miller, Deepak Ramaraju, Gomatam Raghavan Ravi, Dhaval Shah
  • Publication number: 20070203253
    Abstract: The invention relates to a process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component. In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers.
    Type: Application
    Filed: January 24, 2007
    Publication date: August 30, 2007
    Inventors: Parminder Agarwal, Kristen Cohoon, Sandeep Dhawan, Robert Gallucci, Ganesh Kannan, Kenneth Miller, Dhaval Shah
  • Publication number: 20070123655
    Abstract: Disclosed are compositions comprising (i) a rigid thermoplastic resin comprising structural units derived from a (C1-C12)alkyl (meth)acrylate monomer, and optionally a second monomer selected from the group consisting of a vinyl aromatic monomer, a monoethylenically unsaturated nitrile monomer and mixtures thereof, and (ii) 2 parts by weight to 25 parts by weight of a fluoropolymer; wherein the composition is free of both any rubber component and any filler. Articles made from the compositions and a method to improve physical properties in the compositions are also disclosed.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Satish Gaggar, Sandeep Dhawan