Patents by Inventor Donghui Wu
Donghui Wu 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: 10223775Abstract: A method for combining array camera images with feature-based ghost removal includes (a) receiving, from an array camera, a first image and a second image respectively captured by a first camera and a second camera of the array camera, (b) rectifying and aligning the first image and the second image, (c) after said rectifying and aligning, identifying features in the first image to produce at least one first feature image each indicating features in the first image, and identifying features in the second image to produce at least one second feature image each indicating features in the second image, (d) comparing the at least one first feature image with the at least one second feature image to determine a ghost mask defining combination weights for combination of the first image with the second image.Type: GrantFiled: September 14, 2016Date of Patent: March 5, 2019Assignee: OmniVision Technologies, Inc.Inventors: Sarvesh Swami, Donghui Wu
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Patent number: 10213374Abstract: Disclosed herein are oral care compositions comprising naringin:Zinc complexes having a 2:1 naringin to zinc molar ratio. Methods of making and using the compositions are also provided.Type: GrantFiled: October 24, 2017Date of Patent: February 26, 2019Assignee: Colgate-Palmolive CompanyInventors: Jane Ong, James Masters, Tatiana Brinzari, Chi-Yuan Cheng, Donghui Wu, Long Pan
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Patent number: 10206493Abstract: An oral care implement having a body having a handle, a head at an end of the handle, and at least one fluid outlet, the head having at least one oral care element extending therefrom; a reservoir in the body and for storing an oral care fluid; and a supply mechanism connected to the body, the supply mechanism having a user-operable selector comprising a cam, and an actuator comprising a follower in contact with the same, the actuator operable to cause the oral care fluid to flow from the reservoir towards the fluid outlet, and wherein the cam is movable relative to the body to cause movement of the follower relative to the body and thereby operate the actuator.Type: GrantFiled: May 8, 2014Date of Patent: February 19, 2019Assignee: Colgate-Palmolive CompanyInventors: Donghui Wu, Matthew Lee Kolb, Paul Donald Carse
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Patent number: 10172441Abstract: An oral care implement having a body comprising a handle and a head, the body having a cavity, and the head having at least one oral care element extending therefrom; a movable wall in the cavity that divides the cavity into first and second reservoirs, the first reservoir for storing an oral care fluid; a fluid outlet through which the oral care fluid is dispensable to an exterior of the oral care implement; a passageway fluidly connecting the first reservoir with the fluid outlet; a control valve movable between a first position and a second position for preventing and permitting fluid flow from the first reservoir, respectively; a first opening fluidly connecting the second reservoir with the exterior of the oral care implement; and a first check valve for permitting and restricting air flow into and out of the second reservoir from the exterior.Type: GrantFiled: May 7, 2014Date of Patent: January 8, 2019Assignee: Colgate-Palmolive CompanyInventors: Donghui Wu, Alan Sorrentino, Robert Moskovich, Eduardo Jimenez, Kenneth Waguespack, Douglas Joseph Hohlbein, Matthew Lee Kolb, Paul Donald Carse
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Patent number: 10172442Abstract: An oral care implement including a body comprising a handle, a head at an end of the handle, and at least one fluid outlet, the head having at least one oral care element extending therefrom; a reservoir, in the body, for storing an oral care fluid; and a pump for pumping the oral care fluid from the reservoir towards the fluid outlet, wherein the pump comprises a first check valve downstream of the reservoir, and a second check valve downstream of the first check valve and upstream of the fluid outlet. One of the first and second check valves comprises a valve seat defining an opening through which the oral care fluid is flowable, a valve member separate from the valve seat and comprising a stopper movable linearly relative to the valve seat, and a resilient element separate from the valve member and biasing the stopper towards the valve seat.Type: GrantFiled: August 18, 2014Date of Patent: January 8, 2019Assignee: Colgate-Palmolive CompanyInventors: Donghui Wu, David Kyung Min Lee
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Publication number: 20180296453Abstract: This invention relates to oral care compositions comprising an effective amount of a basic amino acid in free or salt form, together with an anionic surfactant, and to methods of using and of making such compositions.Type: ApplicationFiled: June 20, 2018Publication date: October 18, 2018Applicant: Colgate-Palmolive CompanyInventors: Michael Prencipe, Diane CUMMINS, Ravi SUBRAMANYAM, Richard SULLIVAN, Ralph Peter SANTARPIA III, Sarita Vera MELLO, Lynette ZAIDEL, Suman CHOPRA, Qin WANG, Gary TAMBS, Virginia Monsul BARNES, Donghui WU, Andre MORGAN, Rajnish KOHLI, Richard ROBINSON, Sergio LEITE, Eric SIMON
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Patent number: 10102434Abstract: A lane detection system includes a non-volatile memory storing machine-readable instructions and an image processor capable of receiving a road image. The image processor, when executing the machine-readable instructions, is capable of: (i) processing the road image to identify a lane candidate within a lane-existing region of the road image, the lane-existing region having (a) a near subregion including an imaged road region nearer to the vehicle and (b) a far subregion including an imaged road region farther from the vehicle, (ii) verifying the lane candidate as a true lane candidate when a minimum distance between (a) a line fit to a portion of the lane candidate in the near subregion and (b) a predetermined reference point in the road image is less than a neighborhood distance; and (iii) extending the true lane candidate into the far subregion to form a detected lane marker demarcating the lane marker.Type: GrantFiled: December 22, 2015Date of Patent: October 16, 2018Assignee: OmniVision Technologies, Inc.Inventors: Lei Yang, Donghui Wu
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Patent number: 10015388Abstract: A method of focusing an image sensor includes scanning a first portion of an image frame from an image sensor a first time at a first rate to produce first focus data. A second portion of the image frame from the image sensor is scanned at a second rate to read image data from the second portion. The first rate is greater than the second rate. The first portion of the image frame is scanned a second time at the first rate to produce second focus data. The first focus data and the second focus data are compared, and the focus of a lens is adjusted in response to the comparison of the first focus data and the second focus data.Type: GrantFiled: September 2, 2016Date of Patent: July 3, 2018Assignee: OmniVision Technologies, Inc.Inventors: Tiejun Dai, Eiichi Funatsu, Donghui Wu, Zheng Yang, Xiao Xie
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Publication number: 20180177695Abstract: This invention relates to a dual phase mouthwash comprising a hydrophilic phase, a hydrophobic phase, and a hydrotrope, wherein the hydrophilic phase comprises an effective amount of a preservative selected from potassium sorbate, sodium benzoate, benzyl alcohol, and a combination thereof, and CPC and a monovalent acid, as well as to methods of using and of making such compositions.Type: ApplicationFiled: December 20, 2017Publication date: June 28, 2018Applicant: Colgate-Palmolive CompanyInventors: Jeffrey Merl Miller, Venda Porter Maloney, Donghui Wu, Adam Pepperney, Hongwei Shen, Vyoma Patel, Chi-Yuan Cheng
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Publication number: 20180110712Abstract: Disclosed herein are oral care compositions comprising naringin:Zinc complexes having a 2:1 naringin to zinc molar ratio. Methods of making and using the compositions are also provided.Type: ApplicationFiled: October 24, 2017Publication date: April 26, 2018Applicant: Colgate-Palmolive CompanyInventors: Jane Ong, James MASTERS, Tatiana BRINZARI, Chi-Yuan CHENG, Donghui WU, Long PAN
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Publication number: 20180075586Abstract: A method for removing a ghost artifact from a multiple-exposure image of a scene method includes steps of generating and segmenting a difference mask, determining a lower threshold and an upper threshold, generating a refined mask, and generating a corrected image. The difference mask includes a plurality of absolute differences in luminance-values between the multiple-exposure image and a first image of the scene. The segmenting step involves segmenting the difference mask into a plurality of blocks. The lower and upper thresholds are based on statistical properties of the blocks. The method generates the refined mask by mapping each absolute difference to a respective one of a plurality refined values, of the refined mask, equal to a function of the absolute difference, the lower threshold, and the upper threshold. The corrected image is a weighted sum of the first image and the multiple-exposure image, weights being based on the refined mask.Type: ApplicationFiled: September 9, 2016Publication date: March 15, 2018Inventors: Sarvesh Swami, Donghui Wu, Timofey Uvarov
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Publication number: 20180075587Abstract: A method for combining array camera images with feature-based ghost removal includes (a) receiving, from an array camera, a first image and a second image respectively captured by a first camera and a second camera of the array camera, (b) rectifying and aligning the first image and the second image, (c) after said rectifying and aligning, identifying features in the first image to produce at least one first feature image each indicating features in the first image, and identifying features in the second image to produce at least one second feature image each indicating features in the second image, (d) comparing the at least one first feature image with the at least one second feature image to determine a ghost mask defining combination weights for combination of the first image with the second image.Type: ApplicationFiled: September 14, 2016Publication date: March 15, 2018Inventors: Sarvesh Swami, Donghui Wu
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Patent number: 9916644Abstract: A method for removing a ghost artifact from a multiple-exposure image of a scene method includes steps of generating and segmenting a difference mask, determining a lower threshold and an upper threshold, generating a refined mask, and generating a corrected image. The difference mask includes a plurality of absolute differences in luminance-values between the multiple-exposure image and a first image of the scene. The segmenting step involves segmenting the difference mask into a plurality of blocks. The lower and upper thresholds are based on statistical properties of the blocks. The method generates the refined mask by mapping each absolute difference to a respective one of a plurality refined values, of the refined mask, equal to a function of the absolute difference, the lower threshold, and the upper threshold. The corrected image is a weighted sum of the first image and the multiple-exposure image, weights being based on the refined mask.Type: GrantFiled: September 9, 2016Date of Patent: March 13, 2018Assignee: OmniVision Technologies, Inc.Inventors: Sarvesh Swami, Donghui Wu, Timofey Uvarov
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Patent number: 9900527Abstract: An imaging system includes an image sensor configured to capture a sequence of images including at least one low dynamic range (LDR) image and at least one high dynamic range (HDR) image. The imaging system also includes readout circuitry. The readout circuitry is coupled to read out image data captured by the image sensor. A processor is coupled to the readout circuitry to receive image data corresponding to the at least one LDR image and image data corresponding to the at least one HDR image. The processor is configured to combine high frequency image data extracted from image data corresponding to the at least one LDR image with low frequency image data extracted from image data corresponding to the at least one HDR image to form a composite image.Type: GrantFiled: March 8, 2016Date of Patent: February 20, 2018Assignee: OmniVision Technologies, Inc.Inventors: Timofey Uvarov, Sarvesh Swami, Donghui Wu
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Patent number: 9809788Abstract: A soap bar composition comprising solid soap and an oil-in-water emulsion, wherein the emulsion comprises one or more surfactants and wherein the emulsion is dispersed within the solid soap.Type: GrantFiled: December 7, 2012Date of Patent: November 7, 2017Assignee: COLGATE-PALMOLIVE COMPANYInventors: Long Pan, Diana Scala, Donghui Wu, Jairaj Mattai, Christine Boyke, Minli Shi, Diane Curley
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Patent number: 9800796Abstract: An imaging system includes an image sensor to capture a sequence of images, including a low dynamic range (LDR) image and a high dynamic range (HDR) image, and a processor coupled to the image sensor to receive the LDR image and the HDR image. The processor receives instructions to perform operations to segment the LDR image and HDR image into a plurality of segments. The processor also scans the plurality of LDR and HDR image segments to find a first image segment in the plurality of LDR image segments and a second image segment in the plurality of HDR image segments. The processor then finds interest points in the first and second image segments, and determines an alignment parameter based on matched interest points. The LDR image and the HDR image are combined in accordance with the alignment parameter.Type: GrantFiled: June 6, 2016Date of Patent: October 24, 2017Assignee: OmniVision Technologies, Inc.Inventors: Wenchao Zhang, Timofey Uvarov, Sarvesh Swami, Willie Teck Tian Png, Donghui Wu
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Publication number: 20170269046Abstract: The present disclosure is directed to a sensing agent. The sensing agent comprises a quantum dot; and a dye moiety coupled to the quantum dot. The sensing agent is capable of sensing at least one analyte chosen from hydrogen sulfide (H2S) and bisulfide. Sensors made from the sensing agents are also disclosed.Type: ApplicationFiled: March 21, 2017Publication date: September 21, 2017Applicant: Colgate-Palmolive CompanyInventors: Venda Porter Maloney, Donghui WU, Long PAN, Preston SNEE, Armen SHAMIRIAN
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Publication number: 20170264839Abstract: An imaging system includes an image sensor configured to capture a sequence of images including at least one low dynamic range (LDR) image and at least one high dynamic range (HDR) image. The imaging system also includes readout circuitry. The readout circuitry is coupled to read out image data captured by the image sensor. A processor is coupled to the readout circuitry to receive image data corresponding to the at least one LDR image and image data corresponding to the at least one HDR image. The processor is configured to combine high frequency image data extracted from image data corresponding to the at least one LDR image with low frequency image data extracted from image data corresponding to the at least one HDR image to form a composite image.Type: ApplicationFiled: March 8, 2016Publication date: September 14, 2017Inventors: Timofey Uvarov, Sarvesh Swami, Donghui Wu
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Patent number: 9743750Abstract: An oral care system including a toothbrush body having a cavity and a dispenser positioned within the cavity. In one aspect, the invention can be an oral care system comprising: a toothbrush body comprising a handle and a head, the toothbrush body extending along a longitudinal axis from a proximal end to a distal end; a plurality of tooth cleaning elements extending from the head; an opening in the proximal end of the toothbrush body that forms a passageway into an internal cavity of the handle; a first dispenser positioned within the internal cavity and comprising a first store of oral care material, the first dispenser resiliently coupled to the toothbrush body to be alterable between: (1) a first retracted state; and (2) a first extended state.Type: GrantFiled: October 18, 2012Date of Patent: August 29, 2017Assignee: COLGATE-PALMOLIVE COMPANYInventors: Christine Boyke, Donghui Wu
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Publication number: 20170238688Abstract: An oral care implement including a body comprising a handle, a head at an end of the handle, and at least one fluid outlet, the head having at least one oral care element extending therefrom; a reservoir, in the body, for storing an oral care fluid; and a pump for pumping the oral care fluid from the reservoir towards the fluid outlet, wherein the pump comprises a first check valve downstream of the reservoir, and a second check valve downstream of the first check valve and upstream of the fluid outlet. One of the first and second check valves comprises a valve seat defining an opening through which the oral care fluid is flowable, a valve member separate from the valve seat and comprising a stopper movable linearly relative to the valve seat, and a resilient element separate from the valve member and biasing the stopper towards the valve seat.Type: ApplicationFiled: August 18, 2014Publication date: August 24, 2017Applicant: COLGATE-PALMOLIVE COMPANYInventors: Donghui WU, David Kyung Min Lee