Patents by Inventor Guizhi SHI

Guizhi SHI 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).

  • Method of processing card number data and device
    Patent number: 10922680
    Abstract: A method of processing card number data and device including: determining, according to an expiration time corresponding to a card number, a table set corresponding to the card number, and including card number information corresponding to the card number into at least one card number storage table of the table set, wherein the table set comprises a plurality of card number storage tables, each table set corresponds to an expiration time, the expiration time corresponding to all card numbers in the table set is the same as the expiration time corresponding to the table set, and the card number information includes the card number and card number associated data; and after reaching an expiration time corresponding to a table set, performing a cleaning operation on all card number information in the table set. The provided method and device can increase cleaning and maintenance efficiency and reduce maintenance costs.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 16, 2021
    Assignee: CHINA UNIONPAY CO., LTD.
    Inventors: Bin Liu, Jianzhao Wu, Yisheng Fu, Guizhi Shi
  • METHOD OF PROCESSING CARD NUMBER DATA AND DEVICE
    Publication number: 20190012658
    Abstract: A method of processing card number data and device including: determining, according to an expiration time corresponding to a card number, a table set corresponding to the card number, and including card number information corresponding to the card number into at least one card number storage table of the table set, wherein the table set comprises a plurality of card number storage tables, each table set corresponds to an expiration time, the expiration time corresponding to all card numbers in the table set is the same as the expiration time corresponding to the table set, and the card number information includes the card number and card number associated data; and after reaching an expiration time corresponding to a table set, performing a cleaning operation on all card number information in the table set. The provided method and device can increase cleaning and maintenance efficiency and reduce maintenance costs.
    Type: Application
    Filed: December 20, 2016
    Publication date: January 10, 2019
    Applicant: China Unionpay Co., Ltd.
    Inventors: Bin LIU, Jianzhao WU, Yisheng FU, Guizhi SHI