Patents by Inventor Jian-An Chen

Jian-An Chen 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: 11227402
    Abstract: A velocity measuring device includes an event sensor, a ranging sensor and a controller. The event sensor could detect a first image frame of an object along a plane at a first time point and detect a second image frame of the object at a second time point. The ranging sensor could detect a first depth of the object along a depth direction at the first time point, wherein the depth direction is substantially perpendicular to the plane and detect a second depth of the object along the depth direction at the second time point. The controller could obtain first-dimensional velocity and a second-dimensional velocity along the plane according to the first image frame, the second image frame, the first depth and the second depth, and obtain a third-dimensional velocity along the depth direction according to the first depth or the second depth.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: January 18, 2022
    Assignee: iCatch Technology, Inc.
    Inventor: Jian-An Chen
  • Publication number: 20210374983
    Abstract: A velocity measuring device includes an event sensor, a ranging sensor and a controller. The event sensor could detect a first image frame of an object along a plane at a first time point and detect a second image frame of the object at a second time point. The ranging sensor could detect a first depth of the object along a depth direction at the first time point, wherein the depth direction is substantially perpendicular to the plane and detect a second depth of the object along the depth direction at the second time point. The controller could obtain first-dimensional velocity and a second-dimensional velocity along the plane according to the first image frame, the second image frame, the first depth and the second depth, and obtain a third-dimensional velocity along the depth direction according to the first depth or the second depth.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventor: Jian-An CHEN
  • Patent number: 10964043
    Abstract: Firstly, a measurement space is defined with a plurality of voxels. When the object is located within the measurement space, at least a depth map of the object is generated by photographing the object from at least a viewpoint. View direction and coordinates of the at least a viewpoint are also obtained. A plurality of redundant voxels, which are not belong to the object, are eliminated from the measurement space according to the at least a map, the view direction and the coordinates of the at least a viewpoint. The volume and/or the dimension of the object is calculated based on remaining voxels of the measurement space after the redundant voxels are eliminated from the measurement space.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: March 30, 2021
    Assignee: ICATCH TECHNOLOGY, INC.
    Inventor: Jian-An Chen
  • Publication number: 20200388045
    Abstract: Firstly, a measurement space is defined with a plurality of voxels. When the object is located within the measurement space, at least a depth map of the object is generated by photographing the object from at least a viewpoint. View direction and coordinates of the at least a viewpoint are also obtained. A plurality of redundant voxels, which are not belong to the object, are eliminated from the measurement space according to the at least a map, the view direction and the coordinates of the at least a viewpoint. The volume and/or the dimension of the object is calculated based on remaining voxels of the measurement space after the redundant voxels are eliminated from the measurement space.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 10, 2020
    Inventor: Jian-An Chen
  • Patent number: 9161413
    Abstract: The present invention is a control method of color temperature and luminance for an LED device and a control system thereof. The control method has the following steps: executing a cold-start motion; determining whether a warm-start motion is executed during a preset time; if yes, adjusting the color temperature of the LED device, and determining whether the warm-start motion is executed again during the preset time; if not, adjusting the luminance of the LED device, and determining whether the warm-start motion is executed again. A user can adjust the color temperature and the luminance of the LED device by turning off and on a switch of the control system.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: October 13, 2015
    Assignees: ANTEYA TECHNOLOGY CORPORATION
    Inventors: Ting-Feng Wu, Sheng-Chieh Tseng, Chin-Chen Chou, Jian-An Chen
  • Publication number: 20150271891
    Abstract: The present invention is a control method of color temperature and luminance for an LED device and a control system thereof. The control method has the following steps: executing a cold-start motion; determining whether a warm-start motion is executed during a preset time; if yes, adjusting the color temperature of the LED device, and determining whether the warm-start motion is executed again during the preset time; if not, adjusting the luminance of the LED device, and determining whether the warm-start motion is executed again. A user can adjust the color temperature and the luminance of the LED device by turning off and on a switch of the control system.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 24, 2015
    Applicants: ANTEYA TECHNOLOGY CORPORATION
    Inventors: Ting-Feng WU, Sheng-Chieh Tseng, Chin-Chen Chou, Jian-An Chen
  • Publication number: 20120256328
    Abstract: A pressure-reduction oxygen dissolving apparatus includes a container, at least one wave-shaped layer in the container for exchanging gases, at least one oxygen storage/exchange tank on each wave-shaped layer for exchanging gases, a water inlet at the top of the container for filling water into the container, a water outlet installed at the bottom of the container for discharging water out from the container, and a gas inlet for filling oxygen into the container. The oxygen enters into the container through the gas inlet to fill up each oxygen storage/exchange tank. After the oxygen has reached a specific pressure, water enters into the container from the water inlet and flows through chambers of the oxygen storage/exchange tank, and oxygen is dissolved in water naturally. Since the pressure increases the dissolved oxygen content significantly, the water outlet can be opened to obtain water with higher oxygen content.
    Type: Application
    Filed: December 25, 2009
    Publication date: October 11, 2012
    Inventor: Jian An Chen
  • Patent number: 8040925
    Abstract: A broadband fiber laser provides a lasing cavity including a reflective minor and at least one fiber Bragg grating for further providing a lasing signal to resonate and be amplified therein. Alternatively, the wavelength of the fiber laser can be either fixed or tunable by varying the central wavelength of the fiber Bragg grating and/or by adjusting the switching status of an optical switch pair.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: October 18, 2011
    Assignee: National Taiwan University of Science and Technology
    Inventors: Shien-Kuei Liaw, Guo-Sing Jhong, Jian-An Chen
  • Publication number: 20100008386
    Abstract: A broadband fiber laser provides a lasing cavity including a reflective minor and at least one fiber Bragg grating for further providing a lasing signal to resonate and be amplified therein. Alternatively, the wavelength of the fiber laser can be either fixed or tunable by varying the central wavelength of the fiber Bragg grating and/or by adjusting the switching status of an optical switch pair.
    Type: Application
    Filed: September 11, 2009
    Publication date: January 14, 2010
    Inventors: Shien-Kuei Liaw, Guo-Sing Jhong, Jian-An Chen
  • Patent number: 7616667
    Abstract: A broadband fiber laser provides a lasing cavity including a reflective mirror and at least one fiber Bragg grating for further providing a lasing signal to resonate and be amplified therein. Alternatively, the wavelength of the fiber laser can be either fixed or tunable by varying the central wavelength of the fiber Bragg grating and/or by adjusting the switching status of an optical switch pair.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: November 10, 2009
    Assignee: National Taiwan University of Science and Technology
    Inventors: Shien-Kuei Liaw, Guo-Sing Jhong, Jian-An Chen
  • Patent number: 7562139
    Abstract: A system for logging events of network devices includes an event management module (110), an event forwarding module (120), a plurality of service modules (130), an event storing module (150), and a user interface (160). The event management module includes an event buffer (111). The service modules generate various events and classify them. Based on a callback function, the event forwarding module collects classified events and sends them to the event management module. The event management module stores events in the event storing module, and provides the events to the user interface for display according to a predefined filtering mechanism. A method for logging events of network devices is also disclosed.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: July 14, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Jain-Chung Wang, Chuan-Cheng Hsu, Jian-An Chen
  • Publication number: 20080267226
    Abstract: A broadband fiber laser provides a lasing cavity including a reflective mirror and at least one fiber Bragg grating for further providing a lasing signal to resonate and be amplified therein. Alternatively, the wavelength of the fiber laser can be either fixed or tunable by varying the central wavelength of the fiber Bragg grating and/or by adjusting the switching status of an optical switch pair.
    Type: Application
    Filed: October 24, 2007
    Publication date: October 30, 2008
    Inventors: Shien-Kuei Liaw, Guo-Sing Jhong, Jian-An Chen
  • Patent number: 7404072
    Abstract: A system for loading images includes a read-only memory (ROM) (160) for storing the images; an initialization module (110) for initializing a running environment of the system, and for starting up a procedure for automatically loading the images; an image-searching module (130) for searching the images in the ROM; an image-validating module (140) for validating the images that are found by the image-searching module; an image-loading module (150) for loading valid images to a memory of a network device. A related method for loading images is also provided.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: July 22, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Jian-An Chen, Chih-Yuan Huang
  • Patent number: 7286484
    Abstract: The present invention provides a method using Q-learning rule to accurately estimate the transmission cost for the multi-rate transmission control (MRTC) for RRC (radio resource control) in the WCDMA network. This method comprises the following iterative steps: first obtaining a system state and an action using an incoming request, a mean of interference and a variance of interference, then obtaining Q values based on the system state and the action. Afterwards, allocating an optimal action with the Q values, and when a new request with a new state arrives, going back to the first step and updating the Q values using the new state and a cost function based on the system state and the action.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: October 23, 2007
    Assignee: Chunghwa Telecom Co., Ltd.
    Inventors: Fang-Chin Ren, Chung-Ju Chang, Yih-Shen Chen, Jian-An Chen
  • Publication number: 20050268085
    Abstract: A system for loading images includes a read-only memory (ROM) (160) for storing the images; an initialization module (110) for initializing a running environment of the system, and for starting up a procedure for automatically loading the images; an image-searching module (130) for searching the images in the ROM; an image-validating module (140) for validating the images that are found by the image-searching module; an image-loading module (150) for loading valid images to a memory of a network device. A related method for loading images is also provided.
    Type: Application
    Filed: March 16, 2005
    Publication date: December 1, 2005
    Applicant: HON HAI Precision Industry CO., LTD.
    Inventors: Jian-An Chen, Chih-Yuan Huang
  • Publication number: 20050198281
    Abstract: A system for logging events of network devices includes an event management module (110), an event forwarding module (120), a plurality of service modules (130), an event storing module (150), and a user interface (160). The event management module includes an event buffer (111). The service modules generate various events and classify them. Based on a callback function, the event forwarding module collects classified events and sends them to the event management module. The event management module stores events in the event storing module, and provides the events to the user interface for display according to a predefined filtering mechanism. A method for logging events of network devices is also disclosed.
    Type: Application
    Filed: March 30, 2005
    Publication date: September 8, 2005
    Applicant: HON HAI Precision Industry CO., LTD.
    Inventors: Jain-Chung Wang, Chuan-Cheng Hsu, Jian-An Chen
  • Publication number: 20040136321
    Abstract: The present invention provides a method using Q-learning rule to accurately estimate the transmission cost for the multi-rate transmission control (MRTC) for RRC (radio resource control) in the WCDMA network. This method comprises the following iterative steps: first obtaining a system state and an action using an incoming request, a mean of interference and a variance of interference, then obtaining Q values based on the system state and the action. Afterwards, allocating an optimal action with the Q values, and when a new request with a new state arrives, going back to the first step and updating the Q values using the new state and a cost function based on the system state and the action.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 15, 2004
    Inventors: Fang-Chin Ren, Chung-Ju Chang, Yih-Shen Chen, Jian-An Chen