Patents by Inventor Zheng Dong Zeng

Zheng Dong Zeng 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: 20240306904
    Abstract: Examples relate to a system for a scientific or surgical imaging system, to a scientific or surgical imaging system comprising such a system, and to a corresponding method and computer program. The system comprises one or more processors and one or more storage devices. The system is configured to obtain information on one or more illumination parameters used by an illumination system, the illumination system being separate from the scientific or surgical optical imaging system, from the illumination system. The system is configured to determine at least one parameter for using an optical imaging sensor of an imaging device of the scientific or surgical optical imaging system based on the one or more illumination parameters.
    Type: Application
    Filed: March 15, 2024
    Publication date: September 19, 2024
    Inventors: Alvin KOK, Jiahao PAN, Gao YANG, Zheng-Dong ZENG, Charles ZHANG, Zhen YE, Qingsong ZOU, Gim Tong TEO
  • Publication number: 20240197173
    Abstract: Examples relate to an ophthalmic microscope system and to a corresponding system, method and computer program for an ophthalmic microscope system. The system comprises one or more processors and one or more storage devices. The system is configured to obtain intraoperative sensor data of an eye from at least one imaging device of the ophthalmic microscope system. The system is configured to process the intraoperative sensor data using a machine-learning model. The machine-learning model is trained to output information on one or more anatomical features of the eye based on the intraoperative sensor data. The system is configured to generate a display signal for a display device of the ophthalmic microscope system based on the information on the one or more anatomical features of the eye. The display signal comprises a visual guidance overlay for guiding a user of the ophthalmic microscope system with respect to the one or more anatomical features of the eye.
    Type: Application
    Filed: April 7, 2022
    Publication date: June 20, 2024
    Inventors: Alvin KOK, Gao YANG, Zheng-Dong ZENG, Jiahao PAN
  • Publication number: 20240188796
    Abstract: An apparatus for processing image data of tissue that includes at least one processor is disclosed. The apparatus is configured for determining a profile from a plurality of profiles, and applying a plurality of settings from the determined profile. The apparatus determines the image based on the applied settings, and outputs data for displaying at least one image. Each profile includes a plurality of settings. Each profile can be configured to enhance and/or suppress anatomical features of the image.
    Type: Application
    Filed: March 31, 2022
    Publication date: June 13, 2024
    Inventors: Alvin KOK, Gao YANG, Zheng-Dong ZENG, Jiahao PAN
  • Patent number: 10591711
    Abstract: A microscope (10) for obtaining a high dynamic range synthesized image (21) of an object (12) from a plurality of low dynamic range input images (19) comprises a controller (14), an incoherent light source (16) for illuminating the object (12) at different light intensity levels, and a recording device (18) for recording the plurality of low dynamic range input images (19), wherein each of the low dynamic range input images (19) is recorded at a different light intensity level. The controller (14) is configured to control the recording device (18) such that during recording of the series of the low dynamic range images the recording parameters for obtaining the plurality of low dynamic range input images (19) are kept constant.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: March 17, 2020
    Assignees: Leica Microsystems (Schweiz) AG, Leica Instruments (Singapore) Pte Ltd
    Inventors: Zheng-Dong Zeng, Qing-Song Zou, Urs Schmid
  • Publication number: 20170307869
    Abstract: A microscope (10) for obtaining a high dynamic range synthesized image (21) of an object (12) from a plurality of low dynamic range input images (19) comprises a controller (14), an incoherent light source (16) for illuminating the object (12) at different light intensity levels, and a recording device (18) for recording the plurality of low dynamic range input images (19), wherein each of the low dynamic range input images (19) is recorded at a different light intensity level. The controller (14) is configured to control the recording device (18) such that during recording of the series of the low dynamic range images the recording parameters for obtaining the plurality of low dynamic range input images (19) are kept constant.
    Type: Application
    Filed: October 6, 2014
    Publication date: October 26, 2017
    Inventors: Zheng-Dong ZENG, Qing-Song ZOU, Urs SCHMID
  • Patent number: 7644505
    Abstract: The levelling rod (1) for a level determining apparatus (2) has position indications therealong along expressed by barcode symbols (11, 12). At least some of said barcode symbols are color barcode symbols, the color serving to encode said position indications. The barcode symbols can be organised in first and second blocks (12, 11) of barcode symbols, each providing a position indication, wherein the length (Ls) occupied along the rod (1) by a first block (12) is smaller than the length (Lb) occupied along the rod by a second block (11), the first blocks thereby providing a finer position indication than the second blocks. The first blocks (12) of barcode symbols can be formed of monochrome and color bar code symbols, e.g. just one color barcode symbol and at least one monochrome barcode symbol, while the second blocks (11) can be formed purely of color barcode symbols. The invention also relates to a level determining apparatus specifically adapted for the above rod, and to a method of using that rod.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: January 12, 2010
    Assignee: Leica Geosystems AG
    Inventors: Zheng Dong Zeng, Charles Leopold Elisabeth Dumoulin, Chin Keong Ng, Keliang Zhou
  • Patent number: 5910140
    Abstract: The laser medical device includes a Nd:YAlO.sub.3 laser crystal; a pumping system which illuminates the laser crystal with light irradiated from a pumping light source and achieves population inversion of Nd.sup.3+ ion in the laser crystal; and a resonant cavity for resonating light emitted from the Nd.sup.3+ ion to output a laser light having a predetermined wavelength, wherein the wavelength of the laser light falls within the transparent range of quartz optical fibers. The laser medical device may also include a quartz optical fiber for transmitting the laser light; an optical fiber injector for focusing the laser light output by the resonant cavity on one end of the optical fiber; and an optical fiber pen which is coupled to another end of the optical fiber for aiming the laser light transmitted through the optical fiber at a desired location of a subject. These devices use Nd:YAlO.sub.3 crystal as an active laser material and output laser light having a wavelength, such as 1341.4 nm and 1079.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: June 8, 1999
    Assignee: Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
    Inventors: Hong Yuan Shen, Rui Rong Zeng, Yu Ping Zhou, Gui Fang Yu, Cheng Hui Huang, Zheng Dong Zeng, Wen Xiong Lin, Rui Fen Wu