Patents by Inventor Chun-Da Wu

Chun-Da Wu 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: 11913981
    Abstract: An electrostatic sensing system configured to sense an electrostatic information of a fluid inside a fluid distribution component and including an electrostatic sensing assembly, a signal amplifier and an analog-to-digital converter. The electrostatic sensing assembly includes a sensing component, and a shield. The sensing component is configured to be disposed at the fluid distribution component. The sensing component is disposed through the fluid distribution component so as to be partially located in the fluid distribution component. The shield surrounds a part of the sensing component that is located in the fluid distribution component. At least part of the shield is located on an upstream side of the sensing component. The signal amplifier is electrically connected to the sensing component. The analog-to-digital converter is electrically connected to the signal amplifier. The shield has an opening spaced apart from the sensing component.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: February 27, 2024
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Mean-Jue Tung, Ming-Da Yang, Shi-Yuan Tong, Yu-Ting Huang, Chun-Pin Wu
  • Patent number: 11863449
    Abstract: A communication device which is configured to receive a data flow includes a monitor port and a packet processor. The monitor port is configured to receive a packet of the data flow. The packet processor is coupled to the monitor port, and the packet processor is configured to compute a digest value of the packet and compute an identification code of the packet according to the digest value of the packet, and the packet processor searches a status value associated with the identification code in a lookup table so as to determine whether a dropping event of the data flow is recorded.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: January 2, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Kuo-Cheng Lu, Chun-Da Wu, Yu-Hsiu Lin
  • Patent number: 11818580
    Abstract: Methods and apparatus for detecting, in a gateway device configured for facilitating communication between an intranet and an external network, the existence of an unauthorized wireless access point in the intranet. The method includes determining whether a packet received at the gateway originates from one of the wireless devices. If a received at the gateway originates from a wireless device, the method includes determining whether a source MAC address associated with the packet is one of the set of known MAC addresses. If not, the method further includes taking a remedial action to prevent the unauthorized wireless access point from accessing one of the intranet and the external network.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: November 14, 2023
    Assignee: Trend Micro Incorporated
    Inventor: Chun-Da Wu
  • Publication number: 20210409329
    Abstract: A communication device which is configured to receive a data flow includes a monitor port and a packet processor. The monitor port is configured to receive a packet of the data flow. The packet processor is coupled to the monitor port, and the packet processor is configured to compute a digest value of the packet and compute an identification code of the packet according to the digest value of the packet, and the packet processor searches a status value associated with the identification code in a lookup table so as to determine whether a dropping event of the data flow is recorded.
    Type: Application
    Filed: October 8, 2020
    Publication date: December 30, 2021
    Inventors: Kuo-Cheng Lu, Chun-Da Wu, Yu-Hsiu Lin
  • Patent number: 10122638
    Abstract: A network device includes a packet classifying unit and a packet processing unit. The packet processing unit includes processors coupled in series. Each processor includes a storage unit and an operating unit. Data packets are classified into packet types corresponding to different pipelines by the packet classifying unit. The storage unit stores characteristic values and operation data corresponding to different pipelines. The operating unit processes data packets output from the previous stage (e.g., classified data packets) in accordance with their packet types, characteristic values and the corresponding operation data.
    Type: Grant
    Filed: June 19, 2016
    Date of Patent: November 6, 2018
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chun-Da Wu, Hong-June Hsue
  • Patent number: 10069721
    Abstract: The present invention discloses a communication device applicable to a stacking communication system. The communication device comprises: a plurality of communication ports operable to constitute a part of an internal transmission path of the stacking communication system; a storage unit operable to store a reference path table; and a controller operable to receive a frame and then determine whether the frame should be forwarded, wherein if the frame should be forwarded, the controller is operable to choose one among the communication ports according to the reference path table and the content of the frame to forward the frame or a frame derived therefrom to the internal transmission path of the stacking communication system.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 4, 2018
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Mao-Lin Huang, Chun-Da Wu
  • Publication number: 20170155591
    Abstract: A network device includes a packet classifying unit and a packet processing unit. The packet processing unit includes processors coupled in series. Each processor includes a storage unit and an operating unit. Data packets are classified into packet types corresponding to different pipelines by the packet classifying unit. The storage unit stores characteristic values and operation data corresponding to different pipelines. The operating unit processes data packets output from the previous stage (e.g., classified data packets) in accordance with their packet types, characteristic values and the corresponding operation data.
    Type: Application
    Filed: June 19, 2016
    Publication date: June 1, 2017
    Inventors: Chun-Da WU, Hong-June HSUE
  • Publication number: 20170063688
    Abstract: The present invention discloses a communication device applicable to a stacking communication system. The communication device comprises: a plurality of communication ports operable to constitute a part of an internal transmission path of the stacking communication system; a storage unit operable to store a reference path table; and a controller operable to receive a frame and then determine whether the frame should be forwarded, wherein if the frame should be forwarded, the controller is operable to choose one among the communication ports according to the reference path table and the content of the frame to forward the frame or a frame derived therefrom to the internal transmission path of the stacking communication system.
    Type: Application
    Filed: August 9, 2016
    Publication date: March 2, 2017
    Inventors: MAO-LIN HUANG, CHUN-DA WU
  • Publication number: 20130290535
    Abstract: An executing apparatus coupled to a main control unit for managing an access control list (ACL) is provided. The executing apparatus is utilized for receiving a specific command transmitted from the main control unit and managing a plurality of rule information of the ACL stored in a storage circuit according to the specific command received.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 31, 2013
    Applicant: Realtek Semiconductor Corp.
    Inventors: Chengwei Du, Chun-Da Wu, Hong-June Hsue
  • Patent number: 8443095
    Abstract: Techniques for efficiently determining the boundary between files and for ascertaining the difference between a HEAD response and a GET response. Embodiments of the invention only need to check the responses from the server, instead of having to check to both the responses from the server and the requests from the client, in order to ascertain the boundary between files and to ascertain whether a response from the server is a HEAD response or a GET response.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: May 14, 2013
    Assignee: Trend Micro Incorporated
    Inventors: Chun-Da Wu, Chia-Chi Chang
  • Patent number: 8370931
    Abstract: Multi-behavior matching in a computer system is performed in order to identify suspicious sequences of activities. System behavior is captured using driver hooks. A behavior monitoring system determines the process to which the system behavior belongs by processing a table. This includes using the process ID and thread ID of the system behavior as lookups into the table. A multi-behavior matching algorithm is applied to determine if there is any matching suspicious behavior by matching sets of rules (a policy) to system events caused by a particular process. A state machine is used to keep track of matching policies. Options to the rules and policies (such as “offset,” “depth,” “distance,” “within,” “ordered” and “occurrence/interval”) are used to refine when a rule or policy is allowed to produce a positive match, reducing false positives.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: February 5, 2013
    Assignee: Trend Micro Incorporated
    Inventors: Hao-Liang Chien, Ming-Chang Shih, Chun-Da Wu
  • Patent number: 8079085
    Abstract: A program installed on a computer system registers and is placed on an installed program list or an uninstall software list. A check of the uninstall software list (USL) is added as a secondary verification mechanism to a behavior monitoring engine. A signature-based malware scan engine may be used. If the scan engine does not flag the file as malware, then the behavior monitoring engine monitors the activities performed by the underlying application. When the behavior monitoring engine flags an activity as potentially suspicious, the USL is checked to determine if the application running the process is on the USL. If so, then the process is treated as legitimate and there is no need to alert the user. Only if both the behavior is flagged as suspicious and the application performing the behavior is not on the USL will the user receive an alert as to the potential malware.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: December 13, 2011
    Assignee: Trend Micro Incorporated
    Inventors: Chun-Da Wu, Ming-Yan Sun, Chien-Hua Lu