Patents by Inventor Shuai Dong

Shuai Dong 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: 20220120899
    Abstract: A ranging device includes a light emission device configured to emit a light pulse sequence, a light guide device, a first light reception device configured to monitor an output optical power of the light emission device, and a second light reception device configured to receive a light pulse signal reflected by an object and determine a distance between the object and the ranging device based on the light pulse signal. The light guide device includes a light incident surface, a reflection surface, and a light emission surface. The reflection surface includes a first reflection surface and a second reflection surface. At least one of the first reflection surface or the second reflection surface has a curved surface shape. The light guide device is configured to receive part of radiation power emitted by the light emission device and conduct the part of the radiation power to the first light reception device.
    Type: Application
    Filed: November 5, 2021
    Publication date: April 21, 2022
    Inventors: Yue YAN, Xiang LIU, Shuai DONG, Huai HUANG
  • Publication number: 20220082665
    Abstract: A method for controlling a scanning field of view (FOV) of a ranging apparatus includes emitting a light pulse sequence, changing the light pulse sequence to exit at different direction via at least three optical elements, wherein controlling the scanning FOV by controlling the at least three optical elements including at least one of controlling at least one of a scan patterns, a position, or a scanning density of the scanning FOV by controlling rotation speeds of the at least three optical elements, and/or controlling an extension direction of the scanning FOV by controlling initial phases of the at least three optical elements.
    Type: Application
    Filed: November 26, 2021
    Publication date: March 17, 2022
    Inventors: Yalin CHEN, Shuai DONG, Xiaoping HONG
  • Publication number: 20220003850
    Abstract: A ranging device includes a threshold determination circuit and a detection channel. The threshold determination circuit is configured to determine a candidate comparison threshold according to a threshold-influencing factor. The detection channel is configured to receive a light pulse signal reflected by an object, convert the light pulse signal into an electrical signal, compare the electrical signal with the candidate comparison threshold, obtain time information of the electrical signal triggering the candidate comparison threshold, and determine a distance between the object and the ranging device according to the time information.
    Type: Application
    Filed: August 19, 2021
    Publication date: January 6, 2022
    Inventors: Xiang LIU, Shuai DONG, Xiaoping HONG
  • Publication number: 20210341588
    Abstract: A ranging device includes a transmitter, a collimation element, a converging element, a detector, and at least one of a first pre-shaping element or a second pre-shaping element. The transmitter is configured to emit a light pulse sequence. The collimation element is configured to collimate the light pulse sequence. The converging element is configured to converge at least part of reflected light reflected by an object. The detector is configured to receive and convert the at least part of the reflected light to an electrical signal, and determine at least one of a distance or an orientation of the object with respect to the ranging device according to the electrical signal. An effective aperture of the collimation element is greater than an effective aperture of the first pre-shaping element, and an effective aperture of the converging element is greater than an effective aperture of the second pre-shaping element.
    Type: Application
    Filed: July 7, 2021
    Publication date: November 4, 2021
    Inventors: Shuai DONG, Xiaoping Hong
  • Publication number: 20210341610
    Abstract: A ranging device includes a light source, a transceiver, a detector, and a light path changing element. The light source is configured to emit a light pulse. The transceiver is configured to collimate the light pulse and converge at least part of reflected light of the light pulse reflected by a detection object. The detector is configured to receive and convert the at least part of the reflected light into an electrical signal for measuring a distance between the detection object and the ranging device. The light path changing element is configured to combine emission light path and reception light path. The light path changing element includes an area configured to transmit or reflect part of the light pulse, and a reception solid angle of the area with respect to the light pulse is 20%-40% of a reception solid angle of the detector with respect to the reflected light.
    Type: Application
    Filed: July 7, 2021
    Publication date: November 4, 2021
    Inventors: Shuai DONG, Xiaoping HONG, Huai HUANG
  • Publication number: 20210333370
    Abstract: The present disclosure provides a light emission method. The method includes emitting a light pulse sequence; changing a propagation direction of the light pulse sequence to scan a surrounding environment; and controlling an emission frequency and/or emission power of the light pulse sequence based on a scanning speed of the light pulse sequence.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Yue YAN, Shuai DONG, Chenghui LONG
  • Publication number: 20210333374
    Abstract: A ranging apparatus includes an emitter and a detector. The emitter is configured to emit a light pulse sequence. The detector is configured to receive and convert a portion of return light reflected by an object into an electrical signal and determine at least one of a distance or an orientation of the object relative to the ranging apparatus according to the electrical signal. At least one of an anti-reflection material or a reflective surface with a predetermined inclined angle is arranged at a non-working surface off an emission optical path of the light pulse sequence and a reception optical path of the return light and is configured to reflect stray light to outside of the detector. The non-working surface includes a surface of the ranging apparatus that the light pulse sequence and the return light do not pass through.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Shuai DONG, Li WANG, Xiongze MEI, Han CHEN
  • Publication number: 20210333401
    Abstract: The present disclosure provides a distance measuring device. The distance measuring device is configured to detect a target scene to generate point cloud data, the point cloud data including a distance and/or an orientation of a detection object relative to the distance measuring device. An accumulation time of the point cloud data of one or more frames is greater than a time interval between outputting the point cloud data of adjacent frames.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Shuai DONG, Yalin CHEN, Fu ZHANG, Xiaoping HONG
  • Publication number: 20210333369
    Abstract: A ranging system includes at least two types of a first-type ranging apparatus, a second-type ranging apparatus, and a third-type ranging apparatus. Each of the first-type ranging apparatus and the second-type ranging apparatus includes a ranging device and a scanner. The ranging device includes a light source, a convergent lens, and a receiver. The third-type ranging apparatus includes a ranging device and a scanner. A FOV of the second-type ranging apparatus is smaller than a FOV of the first-type ranging apparatus. A diameter and a focal length of a convergent lens of the second-type ranging apparatus are greater than a diameter and a focal length of a convergent lens of the first-type ranging apparatus, respectively.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Shuai DONG, Xiaoping HONG, Xiang LIU, Yue YAN, Xiaoyi GUI
  • Publication number: 20210293928
    Abstract: A ranging apparatus includes an emitter, a scanner, a detector, and a controller. The emitter is configured to emit a light pulse sequence. The scanner is configured to change a transmission direction of the light pulse sequence to transmit in different directions in sequence to form a scan field. The detector is configured to receive a reflected light pulse sequence formed by an object reflecting the light pulse sequence and determine at least one of a distance or an orientation of the object relative to the ranging apparatus according to the reflected light pulse sequence. The controller is configured to control the emitter to emit the light pulse sequence at a first emission frequency when scanning the first region and at a second emission frequency higher than the first emission frequency when scanning the second region.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Xiongze MEI, Shuai DONG, Chenghui LONG, Xiaoping HONG
  • Publication number: 20210293929
    Abstract: A ranging system includes a plurality of ranging apparatuses. Each of the plurality of ranging apparatuses is configured to emit a laser pulse sequence, receive a laser pulse sequence reflected by an object, and detect the object according to the laser pulse sequence emitted and the laser pulse sequence received. The two or more ranging apparatuses of the plurality of ranging apparatuses are configured to emit laser pulse sequence with different time sequences and/or to emit different laser pulse sequences.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Shuai DONG, Chenghui LONG, Xiongze MEI, Xiaoping HONG, Fu ZHANG
  • Publication number: 20210281040
    Abstract: The present disclosure provides a laser diode package. The package includes a sealing body, a laser diode chip placed in the sealing body, and a shaping element disposed on an outer surface of the sealing body and configured to shape light emitted from the laser diode chip.
    Type: Application
    Filed: May 25, 2021
    Publication date: September 9, 2021
    Inventors: Xiang LIU, Xiaoping HONG, Shuai DONG
  • Publication number: 20210263303
    Abstract: Disclosed are techniques for scanning an optical beam in two dimensions (e.g. azimuth and elevation) and for increasing or decreasing a field-of-view (FOV) of the scanned beam. Scanning may be performed by various configurations of prisms, rotatable mirrors, and/or rotatable polygonal mirrors. In some configuration, changes to the FOV of the scanned beam may be performed by prisms positioned with a predetermined angular relationship and may include other optical components, as well. Depending on the predetermined angular relationship, the prisms can expand the FOV along one or more axis and/or may compress the FOV along one or more axis.
    Type: Application
    Filed: March 29, 2021
    Publication date: August 26, 2021
    Inventors: Shuai DONG, Xiaoping Hong, Xiang Liu, Huai Huang, Jin Zhao
  • Publication number: 20210257815
    Abstract: A laser diode chip includes a substrate including a first surface and a second surface, and a laser diode array including at least two laser diodes formed at the substrate. Each of the at least two laser diodes includes a P electrode formed at the first surface of the substrate, an N electrode formed at the second surface of the substrate, and a light emitting region formed between the P electrode and N electrode. Adjacent N electrodes of adjacent laser diodes of the at least two laser diodes are isolated from each other.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 19, 2021
    Inventors: Xiang LIU, Shuai DONG, Xiaoping HONG
  • Publication number: 20210159664
    Abstract: The present disclosure provides a laser diode package module. The laser diode package module includes a substrate including a first surface; a cover disposed on the first surface of the substrate; an accommodation space formed between the substrate and the cover; a laser diode die disposed in the accommodation space; and a reflective surface disposed in the accommodation space for outputting light of the laser diode die reflected by the reflective surface and transmitted through a light-transmitting area. The light-transmitting area is at least partially disposed on a surface of the cover opposite the substrate.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Inventors: Xiang LIU, Guoguang ZHENG, Xiaoping HONG, Mingyu WANG, Shuai DONG
  • Publication number: 20150190451
    Abstract: A composition and a method for treating hyperlipidemia caused by excessive consumption of lamb. The composition comprises in various parts: root of anhwei barberry, folium isatidis, garden erphorbia herb, aster ageratoides, Vietnamese sophora root, codonopsis ianceolata, all-grass of snakefoot clubmoss, apanese stephania root, amur barberry root, thymifoious euphorbia herb, puff-ball, meadowrue root and rhizome, cottonrose hibiscus flower, common lantana leaf, herba orostachyos, Japanese dock root, pubescent holly root, Chinese brake herb, fruit of tree-of-heaven ailanthus, Chinese iris seed, European verbena herb, datura seed, wild buckwheat rhizome, filliform cassytha herb, fig, radix cynanchi atrati, bittersweet herb, Chinese pulsatilla root, spreading hedyotis herb, figwort root, herb of hygrometric boea, radix ardisiae crenatae, sowthistle tasselflower herb, weeping forsythia, roughhaired holly root, tree peony bark, membrane of chicken gizzard, carrot, medicated leaven, and radix glycyrrhizae.
    Type: Application
    Filed: December 30, 2014
    Publication date: July 9, 2015
    Inventor: Shuai Dong