Patents by Inventor Liyan Xie

Liyan Xie 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).

  • Camera interface circuit for barcode scanner
    Patent number: 11347952
    Abstract: A camera interface circuit for a barcode scanner includes a binary conversion block and a selection module. The binary conversion block receives image signals from a camera, and converts gray levels of each pixel in each image frame into binary codes. The selection module alternately provides binary codes of one image frame and image signals of a consecutive image frame as outputs.
    Type: Grant
    Filed: January 1, 2019
    Date of Patent: May 31, 2022
    Assignee: NXP USA, Inc.
    Inventors: Liyan Xie, Mingle Sun, Bin Li, Qiaoyu Ye
  • Doxepin oral transmucosal film
    Patent number: 11179330
    Abstract: The present invention provides an oral transmucosal film or patch for delivering doxepin through the buccal mucosa or sublingual mucosa. The film or patch is a bilayer structure containing a mucoadhesive layer with amorphous doxepin and soluble backing layer without doxepin. The film or patch has satisfactory bioavailability and improved palatability. The mucoadhesive layer comprises 0.5-25% (w/w) of doxepin, 50-96% of one or more film-forming agents, 1-30% (w/w) of one or more adhesives, and 0.05-5% (w/v) of one or more stabilizers. The backing layer comprises 80-100% (w/w) of one or more film-forming agents. Preferred adhesives include povidone, carbomer, and polycarbophil. Preferred stabilizers include butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), citric acid, and ascorbic acid.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: November 23, 2021
    Assignee: Xiamen LP Pharmaceutical Co., Ltd.
    Inventors: Liyan Xie, Yuantao Song, Shengkai Cao, Zhoue Gao, Rongbin Ling
  • DOXEPIN ORAL TRANSMUCOSAL FILM
    Publication number: 20210186859
    Abstract: The present invention provides an oral transmucosal film or patch for delivering doxepin through the buccal mucosa or sublingual mucosa. The film or patch is a bilayer structure containing a mucoadhesive layer with amorphous doxepin and soluble backing layer without doxepin. The film or patch has satisfactory bioavailability and improved palatability. The mucoadhesive layer comprises 0.5-25% (w/w) of doxepin, 50-96% of one or more film-forming agents, 1-30% (w/w) of one or more adhesives, and 0.05-5% (w/v) of one or more stabilizers. The backing layer comprises 80-100% (w/w) of one or more film-forming agents. Preferred adhesives include povidone, carbomer, and polycarbophil. Preferred stabilizers include butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), citric acid, and ascorbic acid.
    Type: Application
    Filed: January 17, 2020
    Publication date: June 24, 2021
    Inventors: Liyan Xie, Yuantao Song, Shengkai Cao, Zhoue Gao, Rongbin Ling
  • CAMERA INTERFACE CIRCUIT FOR BARCODE SCANNER
    Publication number: 20190384953
    Abstract: A camera interface circuit for a barcode scanner includes a binary conversion block and a selection module. The binary conversion block receives image signals from a camera, and converts gray levels of each pixel in each image frame into binary codes. The selection module alternately provides binary codes of one image frame and image signals of a consecutive image frame as outputs.
    Type: Application
    Filed: January 1, 2019
    Publication date: December 19, 2019
    Inventors: Liyan Xie, Mingle Sun, Bin Li, Qiaoyu Ye