Patents by Inventor Ming Leung

Ming Leung 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).

  • Patent number: 11404651
    Abstract: Disclosed in the present invention are a novel organometallic complex and an application thereof in organic electronic devices, particularly in organic phosphorescent light emitting diodes. The present invention further relates to organic electronic devices, in particular organic light emitting diodes (OLEDs), that comprise the organometallic complex according to the present invention, and an application thereof in display and illumination technologies. By means of optimizing the structure of a device and changing the concentration of the metal complex in a matrix thereof, optimal device performance may be achieved, facilitating the implementation of a high-efficiency, high-brightness and high-stability OLED devices, and providing a better material option for full-color display and illumination applications.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 2, 2022
    Assignee: Guangzhou Chinaray Optoelectronic Materials Ltd.
    Inventors: Chi Ming Leung, Hong Huang, Junyou Pan
  • Publication number: 20220112655
    Abstract: A method and an integrated system for dyeing synthetic, natural, and blended textiles in the form of fabrics, yarns, and garments are provided. The integrated system includes a first pressurizing pump for pressurizing liquefied CO2 to supercritical CO2 (Sc—CO2); a second pressurizing pump for pressurizing CO2 to liquefied CO2; a liquefied CO2 storage vessel for storing the liquefied CO2 and the separated liquefied CO2 from the one or more cyclone separators; a heater for heating the Sc—CO2; a dyestuff vessel for mixing a dyestuff and the Sc—CO2 to obtain Sc—CO2-mixed dyestuff; a dyeing vessel for dyeing the textile by circulating the Sc—CO2 and the Sc—CO2-mixed dyestuff between the dyeing vessel and the dyestuff vessel; and one or more cyclone separators for removing the dyestuff from the Sc—CO2-mixed dyestuff to obtain separated liquefied CO2.
    Type: Application
    Filed: March 13, 2019
    Publication date: April 14, 2022
    Inventors: Edwin Yee Man KEH, Lei YAO, Alex Hok Chung CHAN, John Kin Ming LEUNG, Jason Lap Hung CHAN, Wendy Lee Ying YU
  • Patent number: 11288544
    Abstract: A method of generating a training sample for matching unlabelled objects in a sequence of images. A first representation of unlabelled objects is generated from images of a first and second set of images. A second representation of the unlabelled objects is generated using an unsupervised method. An anchor image in the first set is selected. A first set of candidate images in the second set that are close to the anchor image in both the first and second representations, is determined. A second set of candidate images in the second set that are distant from the anchor image in either the first or the second representations, is determined. A match candidate image is selected from the first set or the second set of candidate images. The training sample is generated from at least the anchor image and the match candidate image.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: March 29, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ka Ming Leung, Getian Ye
  • Publication number: 20220086100
    Abstract: Examples described herein relate to a network interface device. The network interface device can include circuitry to select a packet for transmission from among at least one time-based queue and at least one priority-based queue based on a departure time stamp value associated with the packet and a current time value. The network interface device can include circuitry to cause transmission of the selected packet. The circuitry can select a packet for transmission from the at least one time-based queue based on the current time value and based on the associated departure time stamp value.
    Type: Application
    Filed: November 24, 2021
    Publication date: March 17, 2022
    Inventors: Daniel Christian BIEDERMAN, Jin YAN, Ho-Ming LEUNG
  • Publication number: 20220064197
    Abstract: A phosphine oxide group-contained transition metal complex represented by chemical formula (1), and a polymer, a mixture, a composition, and an organic electronic device.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 3, 2022
    Applicant: GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD.
    Inventors: Chi Ming LEUNG, Sihang CHEN, Hong HUANG, Junyou PAN, Caijuan YAN
  • Publication number: 20210307680
    Abstract: An evaluation system including a hardware system for collecting real-time data for evaluating sleeping comfort performance of a bedding system is disclosed. The hardware system includes a thermal and moisture comfort measurement system, a thermal and moisture comfort control system, a biomechanical comfort control system, and a biomechanical comfort measurement system. The evaluation system also includes a computational system having a processor and a tactile database, and a portable device. The computational system is configured to receive and process the real-time data from the hardware system, and is communicatively connected to the portable device for transmitting real-time data for evaluating the bedding system and adjusting the hardware system.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 7, 2021
    Inventors: Gloria Lei Yao, John Kin-ming Leung, Erika Kit-shan Ngan, Ryan Sai-yuk Leung, Siu-cheung Ho, Lv Ru, Hing-leung Chan, Jasmine Li Chi, Yammy Yan-yi Cheng, Christopher Wui-ka Ho, Venus Hoi-yan Lee, Cathy Hiu-ching Li
  • Publication number: 20210153602
    Abstract: A shoe includes a knit upper and a sole secured to the knit upper. The knit upper is formed with a first type of knit structure knitted with a thermoplastic yarn in a first area. The first area is in at least the toe region of the knit upper. In a second area including at least the medial and lateral metatarsal regions of the knit upper, the knit upper is formed with a second type of knit structure knitted with a second yarn having a higher melting temperature than the thermoplastic yarn. A rear boundary line of the first area and a forward boundary line of the second area define a boundary line between the first and second areas.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Ryan Polgar, Mattias Verfl, Laura Greelish, Wai Ming Leung
  • Patent number: 10980196
    Abstract: A perforated subirrigation and drainage pipe includes a pipe body and a permeation irrigation inner pipe. The permeation irrigation inner pipe is integrally formed with the pipe body and disposed at a top of an interior of the pipe body along a longitudinal direction thereof; multiple irrigation perforations, distributed along a longitudinal direction of the permeation irrigation inner pipe, are provided on a pipe wall of a bottom thereof; and an opening is provided on a pipe wall of a bottom of the pipe body; two flow guide baffles are respectively located at two sides of the opening and on an inner wall of the pipe body; a first irrigation and drainage channel is formed between each flow guide baffle and an outer wall of the permeation irrigation inner pipe, between each flow guide baffle and the inner wall of the pipe body, and between the two flow guide baffles.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: April 20, 2021
    Inventor: Yan Ming Leung
  • Publication number: 20210083203
    Abstract: Disclosed in the present invention are a novel organometallic complex and an application thereof in organic electronic devices, particularly in organic phosphorescent light emitting diodes. The present invention further relates to organic electronic devices, in particular organic light emitting diodes (OLEDs), that comprise the organometallic complex according to the present invention, and an application thereof in display and illumination technologies. By means of optimizing the structure of a device and changing the concentration of the metal complex in a matrix thereof, optimal device performance may be achieved, facilitating the implementation of a high-efficiency, high-brightness and high-stability OLED devices, and providing a better material option for full-color display and illumination applications.
    Type: Application
    Filed: December 10, 2018
    Publication date: March 18, 2021
    Applicant: GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD.
    Inventors: Chi Ming LEUNG, Hong HUANG, Junyou PAN
  • Publication number: 20200325393
    Abstract: Disclosed are a transition metal complex, a polymer, a mixture, a composition and the use thereof, wherein the transition metal complex has a structure of the general formula as shown in formula (1): The transition metal complex has a novel structure, and is an iridium (III) complex comprising rigid cycloalkyl groups. Since this type of auxiliary ligand increases the rigidity and symmetry of a molecule, the rigidity of a molecule is increased relative to a common ligand without the cycloalkyl groups, and as such, the whole complex has better chemical, optical, electrical and thermal stabilities. At the same time, since the modification occurs on the auxiliary ligand, the effect on the wavelength of the luminous maximum peak caused by a main ligand is relatively low, and therefore, a saturated luminous color may be retained.
    Type: Application
    Filed: December 6, 2018
    Publication date: October 15, 2020
    Applicant: GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD.
    Inventors: Chi Ming LEUNG, Hong HUANG, Junyou PAN
  • Publication number: 20200257940
    Abstract: A method of generating a training sample for matching unlabelled objects in a sequence of images. A first representation of unlabelled objects is generated from images of a first and second set of images. A second representation of the unlabelled objects is generated using an unsupervised method. An anchor image in the first set is selected. A first set of candidate images in the second set that are close to the anchor image in both the first and second representations, is determined. A second set of candidate images in the second set that are distant from the anchor image in either the first or the second representations, is determined. A match candidate image is selected from the first set or the second set of candidate images. The training sample is generated from at least the anchor image and the match candidate image.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 13, 2020
    Inventors: KA MING LEUNG, GETIAN YE
  • Patent number: 10579901
    Abstract: A method of comparing objects in images. A dictionary determined from a plurality of feature vectors formed from a test image and codes formed by applying the dictionary to the feature vectors, is received. The dictionary is based on a modified manifold obtained by determining correspondences for codes using pairwise similarities between codes. Comparison codes are determined for the objects in the images by applying the dictionary to feature vectors of the objects in the images. The objects in the images are compared based on the comparison codes of the objects.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 3, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Getian Ye, Ka Ming Leung
  • Patent number: 10546208
    Abstract: A method of selecting at least one video frame of a video sequence comprising a plurality of video frames. The method determines a time for analysis based on length of the video sequence and processing capability of a running device. A first sampling pattern is based on the determined time for analysis. A first set of frames in the video sequence is sampled using a first sampling pattern. The first set is sampled infrequently throughout the video sequence in accordance with the first sampling pattern. A candidate frame is determined from the sampled frames based on image quality. A second set of the frames comprising one or more of the frames in a narrow range of the video sequence near the determined candidate frame, is determined in accordance with a second sampling pattern. At least one of the video frames is selected from the sampled frames based on image quality.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: January 28, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sammy Chan, Ian Robert Boreham, Ka Ming Leung, Mark Ronald Tainsh
  • Patent number: 10503981
    Abstract: A method of determining similarity of objects in images. Feature vectors are determined for objects in images captured by cameras operating in a training domain. Feature vectors are determined for the objects in images captured by cameras operating in a target domain, the cameras of the target domain operating with different environmental factors to the cameras of the training domain. A mapping is determined for a difference in the feature vectors of the training domain and the target domain. The difference in the feature vectors of the training domain and the target domain is converted to a matching space by applying the determined mapping to the feature vectors of the training domain and the target domain. A classifier is determined using data associated with the feature vectors of the training domain in the matching space.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Getian Ye, Ka Ming Leung
  • Publication number: 20190334099
    Abstract: A transition metal complex and an application thereof, a mixture and an organic electronic device, the structure of the transition metal complex being represented by general formula (I), wherein the definition of the symbols in general formula (I) is the same as that provided in the description.
    Type: Application
    Filed: June 13, 2019
    Publication date: October 31, 2019
    Applicant: GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD.
    Inventors: Chi Ming LEUNG, Hong HUANG, Junyou PAN
  • Patent number: 10458047
    Abstract: The present disclosure related to a system and method for recycling fibers from textiles waste. The system includes a first sanitization device; a pre-processing device; a fabric sorting device; a storage device; a fiber processing device; and a second sanitization device mounted in the fiber processing device. The first sanitization device, the pre-processing device, the fabric sorting device, the storage device and the fiber processing device are arranged along a transmission path of the textiles waste.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: October 29, 2019
    Assignee: Novetex Textiles Limited
    Inventors: Edwin Yee Man Keh, Milton Chan, Lei Yao, Kin-Ming Leung, Xiao Liao, Alex Chan, Li Chi, Xinxin Huang
  • Patent number: 10372994
    Abstract: A method of selecting at least one video frame of a video sequence. A plurality of faces is detected in at least one video frame of the video sequence. An orientation of the detected faces is tracked over a series of subsequent video frames to determine whether a first detected face is turning towards a second detected face. The method then determines, using the tracked orientation of the detected faces, a portion of the video sequence in which the first and second detected faces are oriented towards each other for at least a predetermined number of frames defining a gaze fixation of the detected faces. At least one video frame is selected from the determined portion of the video sequence, the selected video frame capturing the gaze fixation of the detected faces.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: August 6, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sammy Chan, Ka Ming Leung, Mark Ronald Tainsh
  • Publication number: 20190226125
    Abstract: The present disclosure related to a system and method for recycling fibers from textiles waste. The system includes a first sanitization device; a pre-processing device; a fabric sorting device; a storage device; a fiber processing device; and a second sanitization device mounted in the fiber processing device. The first sanitization device, the pre-processing device, the fabric sorting device, the storage device and the fiber processing device are arranged along a transmission path of the textiles waste.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 25, 2019
    Inventors: Edwin Yee Man KEH, Milton Chan, Lei Yao, Kin-Ming Leung, Xiao Liao, Alex Chan, Li Chi, Xinxin Huang
  • Publication number: 20190222075
    Abstract: A low-voltage direct current motor has a stator and a rotor rotatable relative to the stator. The rotor includes a rotary shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft adjacent to the rotor core, and rotor windings wound about poles of the rotor core and electrically connected to the commutator. The stator includes a round housing, a permanent magnet mounted to an inner surface of the housing, and brushes disposed in sliding contact with the commutator. An input voltage of the motor is in the range of 7 to 36V, and a ratio of an outer diameter of the rotor core to an outer diameter of the housing is in the range of 67% to 75%.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 18, 2019
    Inventors: Ming Cen LU, Chi Keung LAW, Ngai Ming LEUNG
  • Publication number: 20190171905
    Abstract: A method of comparing objects in images. A dictionary determined from a plurality of feature vectors formed from a test image and codes formed by applying the dictionary to the feature vectors, is received. The dictionary is based on a modified manifold obtained by determining correspondences for codes using pairwise similarities between codes. Comparison codes are determined for the objects in the images by applying the dictionary to feature vectors of the objects in the images. The objects in the images are compared based on the comparison codes of the objects.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 6, 2019
    Inventors: Getian Ye, Ka Ming Leung