Patents by Inventor Nithya Venkataraman
Nithya Venkataraman 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: 11837215Abstract: Technologies are disclosed for interacting with a virtual assistant to request updates associated with one or more events and/or perform actions. According to some examples, a user may use their voice to interact with a virtual assistant to receive updates relating to events occurring during a certain period of time. For example, a user may request an update associated with one or more events occurring that day. The system may access data sources (e.g., calendar services, email services, etc.) to obtain data associated with the events, tag the events according to one or more conditions indicated by the data, and/or rank the events according to the tags. In addition, to resolve conditions associated with the events, the virtual assistant may also include options in the update to perform certain actions and/or to provide response data. The virtual assistant may generate the update and audibly provide the update to the user.Type: GrantFiled: November 7, 2022Date of Patent: December 5, 2023Assignee: Amazon Technologies, Inc.Inventors: Sunitha Kalkunte Srivatsa, Maayan Aharon, Aakarsh Nair, Nithya Venkataraman, Lohit Bijani
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Patent number: 11495219Abstract: Technologies are disclosed for interacting with a virtual assistant to request updates associated with one or more events and/or perform actions. According to some examples, a user may use their voice to interact with a virtual assistant to receive updates relating to events occurring during a certain period of time. For example, a user may request an update associated with one or more events occurring that day. The system may access data sources (e.g., calendar services, email services, etc.) to obtain data associated with the events, tag the events according to one or more conditions indicated by the data, and/or rank the events according to the tags. In addition, to resolve conditions associated with the events, the virtual assistant may also include options in the update to perform certain actions and/or to provide response data. The virtual assistant may generate the update and audibly provide the update to the user.Type: GrantFiled: September 30, 2019Date of Patent: November 8, 2022Assignee: Amazon Technologies, Inc.Inventors: Sunitha Kalkunte Srivatsa, Maayan Aharon, Aakarsh Nair, Nithya Venkataraman, Lohit Bijani
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Patent number: 8691111Abstract: A liquid crystal composition comprising a chiral dopant compound represented by the following formula: wherein: R1, R2 are independently aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine to form a carbocyclic or heterocyclic ring; R3 and R4 are independently hydrogen, halogen, cyano, alkoxy, NHCOR7, NHSO2R7, COOR7, OCOR7, aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine with either R1 or R2 to form a carbocylic or heterocyclic ring; R5 and R6 are independently hydrogen, CH2, CH, alkyl or aryl either substituted or unsubstituted, COOR7, or combine with L to form a carbocyclic or heterocyclic ring; R7 is aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl or heterocyclic all either substituted or unsubstituted; L is the non-metallic elements required to form a carbocyclic or heterocyclic ring, or a single bond or a double bond; m is 1-3; n is 0-12.Type: GrantFiled: April 26, 2012Date of Patent: April 8, 2014Assignee: Kent Displays Inc.Inventors: Donald R. Diehl, Thomas Welter, Erica N. Montbach, J. William Doane, Nithya Venkataraman
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Patent number: 8329058Abstract: A photodisplay device in which an optically addressed image can be viewed indefinitely, erased and readdressed with a new image is disclosed. Optically responsive reversible photochiral materials are incorporated into a bistable cholesteric liquid crystal in an electrooptic display cell. A high resolution image exposed on the cell is fixed by a low voltage pulse to unpatterned electrodes and can be, at a later time, erased with a high voltage pulse.Type: GrantFiled: June 13, 2007Date of Patent: December 11, 2012Assignees: Kent Displays Incorporated, Kent State UniversityInventors: Quan Li, Lisa M. Green, J. William Doane, Asad A. Khan, Nithya Venkataraman, Irina Shiyanovskaya
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Patent number: 8310630Abstract: The invention features electronic skin including an active layer formed of bistable cholesteric liquid crystal material and articles comprising the skin, the electronic skin having uniform gray scale reflectivity. Also featured is method for producing suitable reduction pulses that will provide a display (e.g., the electronic skin) with uniform gray scale reflectivity. Reduction pulses of narrow width are used to create uniform levels of gray in the electronic skin to overcome display imperfections that cause discontinuity in the gray scale reflectivity.Type: GrantFiled: May 16, 2008Date of Patent: November 13, 2012Assignee: Manning Ventures, Inc.Inventors: Duane W. Marhefka, Nithya Venkataraman, Sankar Barua
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Publication number: 20120273725Abstract: A liquid crystal composition comprising a chiral dopant compound represented by the following formula: wherein: R1, R2 are independently aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine to form a carbocyclic or heterocyclic ring; R3 and R4 are independently hydrogen, halogen, cyano, alkoxy, NHCOR7, NHSO2R7, COOR7, OCOR7, aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl, alkaryl or heterocyclic all either substituted or unsubstituted, or combine with either R1 or R2 to form a carbocylic or heterocyclic ring; R5 and R6 are independently hydrogen, CH2, CH, alkyl or aryl either substituted or unsubstituted, COOR7, or combine with L to form a carbocyclic or heterocyclic ring; R7 is aryl, alkyl, alkenyl, cycloalkyl, alkoxyaryl or heterocyclic all either substituted or unsubstituted; L is the non-metallic elements required to form a carbocyclic or heterocyclic ring, or a single bond or a double bond; m is 1-3; n is 0-12.Type: ApplicationFiled: April 26, 2012Publication date: November 1, 2012Applicants: Kent State University, Kent Displays IncorporatedInventors: Donald R. Diehl, Thomas Welter, Erica N. Montbach, J. William Doane, Nithya Venkataraman
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Patent number: 8199086Abstract: The invention comprises a stacked color photodisplay apparatus using a photosensitive cholesteric liquid crystalline material on which an image can be optically addressed, retained without degradation for an indefinite period of time, electrically erased and a new image addressed. This is similar to a photographic film except that the photodisplay film can be used over and over again similar to digital display but without the cost of addressing electronics. Included is a device for enhancing the brightness of the image and electrooptical devices for optically writing digital images on the photodisplay. Each cell in the stack can be selectively addressed with a different optical image such as the red, green and blue components of a color digital image.Type: GrantFiled: July 1, 2008Date of Patent: June 12, 2012Assignee: Kent Displays IncorporatedInventors: J. William Doane, Asad A. Khan, Erica Montbach, Nithya Venkataraman
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Publication number: 20120086735Abstract: The invention features electronic skin including an active layer formed of bistable cholesteric liquid crystal material and articles comprising the skin, the electronic skin having uniform gray scale reflectivity. Also featured is method for producing suitable reduction pulses that will provide a display (e.g., the electronic skin) with uniform gray scale reflectivity. Reduction pulses of narrow width are used to create uniform levels of gray in the electronic skin to overcome display imperfections that cause discontinuity in the gray scale reflectivity.Type: ApplicationFiled: October 10, 2011Publication date: April 12, 2012Applicant: KENT DISPLAYS INCORPORATEDInventors: Duane W. MARHEFKA, Nithya VENKATARAMAN, Sankar BARUA
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Patent number: 8020475Abstract: The production of liquid crystal displays (LCDS) on plastic substrates is desirable over glass substrates so that the finished product is thinner, lighter, and more robust. Plastic substrates can enable the use of new and different processing techniques which are not possible on glass such as roll-to-roll processing. This invention discusses an advancement which is laser cutting a plastic substrate and display layer. One aspect of the invention is laser cutting and welding together two or more plastic substrates and LCD layer therebetween from a larger sheet or roll of plastic LCDs.Type: GrantFiled: June 1, 2007Date of Patent: September 20, 2011Assignee: Kent Displays IncorporatedInventors: Tod Schneider, Sean Franklin, Nithya Venkataraman, Donald Davis
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Publication number: 20090284691Abstract: The invention features electronic skin including an active layer formed of bistable cholesteric liquid crystal material and articles comprising the skin, the electronic skin having uniform gray scale reflectivity. Also featured is method for producing suitable reduction pulses that will provide a display (e.g., the electronic skin) with uniform gray scale reflectivity. Reduction pulses of narrow width are used to create uniform levels of gray in the electronic skin to overcome display imperfections that cause discontinuity in the gray scale reflectivity.Type: ApplicationFiled: May 16, 2008Publication date: November 19, 2009Inventors: Duane W. Marhefka, Nithya Venkataraman, Sankar Barua
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Publication number: 20080309598Abstract: The invention comprises a stacked color photodisplay apparatus using a photosensitive cholesteric liquid crystalline material on which an image can be optically addressed, retained without degradation for an indefinite period of time, electrically erased and a new image addressed. This is similar to a photographic film except that the photodisplay film can be used over and over again similar to digital display but without the cost of addressing electronics. Included is a device for enhancing the brightness of the image and electrooptical devices for optically writing digital images on the photodisplay. Each cell in the stack can be selectively addressed with a different optical image such as the red, green and blue components of a color digital image.Type: ApplicationFiled: July 1, 2008Publication date: December 18, 2008Inventors: J. William Doane, Asad A. Khan, Erica Montbach, Nithya Venkataraman
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Publication number: 20070277659Abstract: The production of liquid crystal displays (LCDS) on plastic substrates is desirable over glass substrates so that the finished product is thinner, lighter, and more robust. Plastic substrates can enable the use of new and different processing techniques which are not possible on glass such as roll-to-roll processing. This invention discusses an advancement which is laser cutting a plastic substrate and display layer. One aspect of the invention is laser cutting and welding together two or more plastic substrates and LCD layer therebetween from a larger sheet or roll of plastic LCDs.Type: ApplicationFiled: June 1, 2007Publication date: December 6, 2007Applicant: Kent Diplays IncorporatedInventors: Tod SCHNEIDER, Sean Franklin, Nithya Venkataraman, Donald Davis
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Publication number: 20070237906Abstract: A photodisplay device in which an optically addressed image can be viewed indefinitely, erased and readdressed with a new image is disclosed. Optically responsive reversible photochiral materials are incorporated into a bistable cholesteric liquid crystal in an electrooptic display cell. A high resolution image exposed on the cell is fixed by a low voltage pulse to unpatterned electrodes and can be, at a later time, erased with a high voltage pulse.Type: ApplicationFiled: June 13, 2007Publication date: October 11, 2007Applicants: Kent Displays Incorporated, Kent State UniversityInventors: Quan Li, Lisa Green, J. Doane, Asad Khan, Nithya Venkataraman, Irina Shiyanovskaya