Patents by Inventor Liangnan Wu

Liangnan 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).

  • Publication number: 20230298015
    Abstract: Systems and methods for validating information of a user by registering a user private identifier to a registry may generate a user public key and a user private key, the keys together forming a user cryptographic public/private key pair, generate generating a nonce value using a cryptographic random generator, generate the user public identifier, wherein the user public identifier is a hash value generated by applying a cryptographic hash function to: the user public key, the nonce value, and at least one identity trait that the user has previously registered with the registry, sign the user public identifier with the user private key to obtain a signed user public identifier, generate a zero knowledge proof of the at least one identity trait; and transmit to the registry computer system: the user public identifier, the signed user public identifier, the user public key, and the zero knowledge proof.
    Type: Application
    Filed: March 20, 2023
    Publication date: September 21, 2023
    Inventors: Mehmet Sabir Kiraz, Suleyman Kardas, Liangnan Wu
  • Publication number: 20140247470
    Abstract: A process and system to transform a digital photograph of a text document into a scan-quality image is disclosed. By extracting the document text from the image, and analyzing visual clues from the text, a grid is constructed over the image representing the distortions in the image. Transforming the image to straighten this grid removes distortions introduced by the camera image-capture process. Variations in lighting, the extraction of text line information, and the modeling of curved lines in the image may be corrected.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 4, 2014
    Applicant: Compulink Managment Center, Inc.
    Inventors: Martin G. Hunt, Maria A. Pavlovskaia, Logan M.K. Gordon, William W. Tipton, Trang T. Pham, Darryl H. Yong, Weiqing Gu, James O. Egan, Liangnan Wu, Kin-Chung Wong
  • Publication number: 20100073735
    Abstract: A process and system to transform a digital photograph of a text document into a scan-quality image is disclosed. By extracting the document text from the image, and analyzing visual clues from the text, a grid is constructed over the image representing the distortions in the image. Transforming the image to straighten this grid removes distortions introduced by the camera image-capture process. Variations in lighting, the extraction of text line information, and the modeling of curved lines in the image may be corrected.
    Type: Application
    Filed: May 6, 2009
    Publication date: March 25, 2010
    Inventors: Martin G. Hunt, Maria A. Pavlovskaia, Logan M.K. Gordon, William W. Tipton, Trang T. Pham, Darryl H. Yong, Weiqing Gu, James O. Egan, Liangnan Wu, Kin-Chung Wong