Patents by Inventor Tianning Xu
Tianning Xu 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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Publication number: 20090021752Abstract: A laparoscopy simulator includes two rods and an orientation sensor that determines the orientation of the rods. An optical sensor is used to determine measurements of each rod based on the rotation of the rod around a central axis of the rod and a sliding of the rod along the central axis. An accelerometer is used to determine additional measurements of each rod based on a rotation of the rod around two additional rotation axes of the simulator. The measurements are used to determine the overall orientation of the rods.Type: ApplicationFiled: July 18, 2007Publication date: January 22, 2009Applicant: Immersion Medical, Inc.Inventors: Rob Cohen, Tianning Xu
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Publication number: 20080071161Abstract: A system and method for determining and tracking healing progress of a wound may include receiving a trace of a wound via an electronic display device and a wound depth measurement. A wound volume may be calculated from an area of the trace of the wound and the wound depth measurement. One embodiment may include receiving an image of a wound, displaying the image of the wound on an electronic display, enabling a user to generate indicia on the image of the wound, and generating trace lines between successive indicia to create a closed boundary that defines a perimeter of the wound.Type: ApplicationFiled: September 18, 2007Publication date: March 20, 2008Inventors: Jonathan Jaeb, Tianning Xu, Christopher Locke, Mark Stephen Beard
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Publication number: 20080071162Abstract: A system and method for analyzing tissue healing may include an image capture device and a reference color marker of a predetermined color. A processing unit may be in communication with the image capture device, and be configured to receive image data from the image capture device. The image data may include image of a tissue site and the reference color marker. At least one image parameter may be adjusted based on at least a portion of the image of the reference color marker to normalize the image data. The normalized image data may be presented to a clinician.Type: ApplicationFiled: September 18, 2007Publication date: March 20, 2008Inventors: Jonathan Jaeb, Tianning Xu, Christopher Locke, Mark Beard
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Publication number: 20070276195Abstract: Systems and methods for capturing and digitizing an image of a wound and/or a wound trace from a patient and determining there from a degree of change in the characteristics of the wound. A first embodiment includes a transparent/translucent film onto which a dark outline of the wound is traced. The film is fixed to a reference template that provides a geometrically defined reference area. The film/template assembly is imaged with a digital imaging device associated with a handheld digital processor (such as a PDA). The digital image of the template and the wound trace are analyzed to identify the wound tracing and quantify the area within the closed curve. A second embodiment includes imaging the wound site with a reference tag and viewing the image on a display with an associated graphical data input device. A trace of the wound perimeter is made on display with the graphical data input device to establish a data set for the wound perimeter.Type: ApplicationFiled: May 12, 2006Publication date: November 29, 2007Applicant: KCI Licensing, Inc.Inventors: Tianning Xu, Jonathan Jaeb
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Publication number: 20070276309Abstract: Systems and methods for capturing and digitizing an image of a wound and/or a wound trace from a patient and determining there from a degree of change in the characteristics of the wound. A first embodiment includes a transparent/translucent film onto which a dark outline of the wound is traced. The film is fixed to a reference template that provides a geometrically defined reference area. The film/template assembly is imaged with a digital imaging device associated with a handheld digital processor (such as a PDA). The digital image of the template and the wound trace are analyzed to identify the wound tracing and quantify the area within the closed curve. A second embodiment includes imaging the wound site with a reference tag and viewing the image on a display with an associated graphical data input device. A trace of the wound perimeter is made on display with the graphical data input device to establish a data set for the wound perimeter.Type: ApplicationFiled: May 12, 2006Publication date: November 29, 2007Applicant: KCI Licensing, Inc.Inventors: Tianning Xu, Jonathan Jaeb
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Publication number: 20070260226Abstract: A wound exudate removal and isolation system includes a porous dressing, a canister in fluid communication with the dressing, and a first valve positioned between the dressing and the canister. The first valve is positionable between an open position and a closed position. A disposal line is fluidly connected to the canister and includes a second valve that is positionable between an open position and a closed position. A pump is fluidly connected to the canister and is configured to draw wound exudate from the dressing into the canister when the first valve is open and the second valve is closed. The pump is configured to force wound exudate from the canister into the disposal line when the first valve is closed and the second valve is open.Type: ApplicationFiled: December 6, 2006Publication date: November 8, 2007Applicant: KCI Licensing, Inc.Inventors: Jonathan Jaeb, Tab Randolph, Randall Kelch, Xiaolu Zheng, Devin Ginther, Tianning Xu, Jennifer Novak, T. Sanders
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Patent number: 7212655Abstract: A biometric verification system for controlling access is provided that does not rely on a non-biometric discriminator, such as a PIN or magnetic card, to convert a one-to-many verification task to a one-to-one verification task. The system enrolls authorized users by obtaining digitized fingerprint templates from them and storing them in a database. Video cameras and fingerprint sensors are provided for use in authenticating persons seeking access. Software compares a digital representation of a captured human facial image with stored facial images in a database of facial images, generating a match confidence therefrom and rank-ordering the database from highest to lowest match confidence. The software then compares captured human fingerprints with stored fingerprint templates associated with the rank-ordered database to verify the identity of the person and provide an output signal indicative of recognition.Type: GrantFiled: October 19, 2005Date of Patent: May 1, 2007Inventors: David M. Tumey, Tianning Xu, Craig Arndt
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Patent number: 7062073Abstract: An articulated and animated toy capable of recognizing human users and selected inanimate objects and interacting therewith which includes a computer-based device having stored thereon encoded first human or human-like facial images, a video camera and video digitizer for acquiring data representative of a second human or human-like facial image, and software resident within said computer-based device for facial recognition, which includes Principal Component Analysis, Neural Networks, or another equivalent algorithm for comparing said first human or human-like facial images with said second human or human-like facial image and producing an output signal therefrom for use in identifying said human users. The apparatus can further include software for recognizing speech, generating speech and controlling animation of the articulated toy. In addition, said computer-based device is capable of learning and storing information pertaining to each of said human users such as name, age, sex, favorite color, etc.Type: GrantFiled: January 19, 2000Date of Patent: June 13, 2006Inventors: David M. Tumey, Tianning Xu
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Patent number: 7039221Abstract: A biometric facial image verification system capable of recognizing human users which includes a smart-card having stored thereon encoded first human facial images, a video camera and video digitizer embedded within said smart-card for acquiring data representative of a second human facial image. A computer-based device with a docking station capable of receiving said smart-card and software resident within said computer-based device for facial recognition, which includes Principal Component Analysis, Neural Networks, or another equivalent algorithm for comparing said first human facial images with said second human facial image and producing an output signal therefrom for use in verifying the identity of said human users. The apparatus can further include software for fingerprint and speech recognition.Type: GrantFiled: April 7, 2000Date of Patent: May 2, 2006Inventors: David M. Tumey, Tianning Xu, Craig M. Arndt
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Patent number: 7020310Abstract: An articulated and animated toy capable of recognizing human users and interacting therewith includes a computer-based device storing encoded first human fingerprint data, a fingerprint sensor for acquirin data representative of a second human fingerprint, and software for fingerprint verification. The apparatus can further include software for recognizing speech, generating speech and controlling animation of the articulated toy. In addition, the toy is capable of learning and storing information pertaining to each of said human users such as name, age, sex, favorite color, etc., and to interact with each of said human users on an individual basis, providing entertainment tailored specifically to each of said human users.Type: GrantFiled: September 1, 2004Date of Patent: March 28, 2006Assignee: Intelligent Verification Systems, Inc.Inventors: David M. Tumey, Tianning Xu, Craig M. Arndt
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Publication number: 20060050932Abstract: A biometric verification system for controlling access is provided that does not rely on a non-biometric discriminator, such as a PIN or magnetic card, to convert a one-to-many verification task to a one-to-one verification task. The system enrolls authorized users by obtaining digitized fingerprint templates from them and storing them in a database. Video cameras and fingerprint sensors are provided for use in authenticating persons seeking access. Software compares a digital representation of a captured human facial image with stored facial images in a database of facial images, generating a match confidence therefrom and rank-ordering the database from highest to lowest match confidence. The software then compares captured human fingerprints with stored fingerprint templates associated with the rank-ordered database to verify the identity of the person and provide an output signal indicative of recognition.Type: ApplicationFiled: October 19, 2005Publication date: March 9, 2006Inventors: David Tumey, Tianning Xu, Craig Arndt
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Publication number: 20060020212Abstract: A portable vein locating device includes one or more infrared illuminators for transmission through a patient's skin of infrared light and a vein imaging module for determining the location of a vein beneath the skin by detecting the absence of backscattered infrared light. As the device is passed over a patient's skin, infrared light from the infrared illuminators penetrates through the patient's skin and is absorbed by veins under the skin but scattered by the fat and other tissues surrounding the veins. Backscattered infrared light from the areas about the veins is detected by the vein imaging module, which includes a number of infrared light detectors, for detecting the backscattered light, and a display, for indicating to the medical caregiver the location beneath the skin of detected veins.Type: ApplicationFiled: July 26, 2004Publication date: January 26, 2006Inventors: Tianning Xu, Yufang Dai
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Patent number: 6963659Abstract: A biometric verification system for controlling access is provided that does not rely on a non-biometric discriminator, such as a PIN or magnetic card, to convert a one-to-many verification task to a one-to-one verification task. The system enrolls authorized users by obtaining digitized fingerprint templates from them and storing them in a database. Video cameras and fingerprint sensors are provided for use in authenticating persons seeking access. Software compares a digital representation of a captured human facial image with stored facial images in a database of facial images, generating a match confidence therefrom and rank-ordering the database from highest to lowest match confidence. The software then compares captured human fingerprints with stored fingerprint templates associated with the rank-ordered database to verify the identity of the person and provide an output signal indicative of recognition.Type: GrantFiled: September 12, 2001Date of Patent: November 8, 2005Assignee: FaceKey Corp.Inventors: David M. Tumey, Tianning Xu, Craig Arndt
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Publication number: 20050031172Abstract: An articulated and animated toy capable of recognizing human users and interacting therewith which includes a computer-based device having stored thereon encoded first human fingerprint data, a fingerprint sensor for acquiring data representative of a second human fingerprint, and software resident within said computer-based device for fingerprint verification, which includes minutiae analysis, neural networks, or another equivalent algorithm for comparing said first human fingerprint data with said second human fingerprint data and producing an output signal therefrom for use in identifying said human users. The apparatus can further include software for recognizing speech, generating speech and controlling animation of the articulated toy. In addition, said computer-based device is capable of learning and storing information pertaining to each of said human users such as name, age, sex, favorite color, etc.Type: ApplicationFiled: September 1, 2004Publication date: February 10, 2005Inventors: David Tumey, Tianning Xu, Craig Arndt
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Patent number: 6807291Abstract: An articulated and animated toy capable of recognizing human users and interacting therewith which includes a computer-based device having stored thereon encoded first human fingerprint data, a fingerprint sensor for acquiring data representative of a second human fingerprint, and software resident within said computer-based device for fingerprint verification, which includes minutiae analysis, neural networks, or another equivalent algorithm for comparing said first human fingerprint data with said second human fingerprint data and producing an output signal therefrom for use in identifying said human users. The apparatus can further include software for recognizing speech, generating speech and controlling animation of the articulated toy. In addition, said computer-based device is capable of learning and storing information pertaining to each of said human users such as name, age, sex, favorite color, etc.Type: GrantFiled: June 6, 2000Date of Patent: October 19, 2004Assignee: Intelligent Verification Systems, Inc.Inventors: David M. Tumey, Tianning Xu, Craig M. Arndt
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Patent number: 6794986Abstract: An automated access control apparatus and method. Identification data is compared with stored data to determine if a person should be granted access to an area. If granted access, the person is prompted to indicate a number of guests desiring access. As the person and the guests pass through entrance, the persons are counted and proper personnel is notified if an unauthorized number of persons enters the area. Unauthorized entries are recorded as image data that can be played in real time or at a later time for review. Guest entry is logged for billing purposes.Type: GrantFiled: October 1, 2002Date of Patent: September 21, 2004Assignee: Biokey, Ltd.Inventors: Daniel R. Puchek, Tianning Xu, David M. Tumey
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Publication number: 20030034876Abstract: An automated access control apparatus and method. Identification data is compared with stored data to determine if a person should be granted access to an area. If granted access, the person is prompted to indicate a number of guests desiring access. As the person and the guests pass through entrance, the persons are counted and proper personnel is notified if an unauthorized number of persons enters the area. Unauthorized entries are recorded as image data that can be played in real time or at a later time for review. Guest entry is logged for billing purposes.Type: ApplicationFiled: October 1, 2002Publication date: February 20, 2003Applicant: BIOKEY, LTD.Inventors: Daniel R. Puchek, Tianning Xu, David M. Tumey
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Patent number: 6504470Abstract: An automated access control apparatus and method. Identification data is compared with stored data to determine if a person should be granted access to an area. If granted access, the person is prompted to indicate a number of guests desiring access. As the person and the guests pass through entrance, the persons are counted and proper personnel is notified if an unauthorized number of persons enters the area. Unauthorized entries are recorded as image data that can be played in real time or at a later time for review. Guest entry is logged for billing purposes.Type: GrantFiled: January 16, 2001Date of Patent: January 7, 2003Assignee: Nextgenid, Ltd.Inventors: Daniel R. Puchek, Tianning Xu, David M. Tumey
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Patent number: 6496595Abstract: An access control apparatus and method. Enrollment is conducted at a centralized server and enrollment data, such as identification data is downloaded to plural local access units at respective entrances to a restricted area. The local access units then collect data of a person upon an attempted entry in to the area and compare the data with downloaded enrollment data to determine if the person is authorized for access. If the person is authorized, an access control device is operated to open a door, gate, or the like of the entrance. The enrollment data can be biometric data and the same type or different type of biometric data can be collected at the local access units. If a different type of data is collected at the local access units and is correlated to data stored on the local access unit, data of the same type as the downloaded data is collected and compared to the downloaded data for access control.Type: GrantFiled: May 19, 2000Date of Patent: December 17, 2002Assignee: Nextgenid, Ltd.Inventors: Daniel R. Puchek, Tianning Xu, David M. Tumey
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Patent number: 6447460Abstract: An automated screening tool for the exclusion of deep venous thrombosis generally comprises a sensor array for gathering thermal data from the lower limbs of a patient suspected of DVT; a processor for automated analysis of the gathered data; and a display device for reporting the exclusion or non-exclusion of DVT. In the preferred embodiment of the present invention, a microprocessor based system is utilized to control the gathering of thermal data and, thereafter, the reporting of the gathered data to the processor. According to the preferred method for use of the present invention, the gathered thermal data is utilized, alone or in combination with other indicators, as a factor for exclusion of DVT based upon an implemented algorithm. According to the preferred embodiment of the present invention, a neural network or genetic algorithm is implemented within the processor in order to make an entirely objective determination relative the presence of DVT.Type: GrantFiled: April 5, 1999Date of Patent: September 10, 2002Assignee: KCI Licensing, Inc.Inventors: X. Lu Zheng, Tianning Xu, David M. Tumey