Patents by Inventor Chun-Feng Li

Chun-Feng Li 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: 20240171296
    Abstract: An optical receiving device includes a substrate; an optical receiving chip arranged on the substrate; an optical demultiplexer arranged on the substrate and used to distinguish optical signals into optical signals with different wavelengths; an optical transmission structure optically coupled to the optical demultiplexer and providing the optical signals to the optical demultiplexer; and an optical fiber array fused with optical fibers of the optical demultiplexer, and transmitting the optical signals with different wavelengths to the optical receiving chip.
    Type: Application
    Filed: January 5, 2023
    Publication date: May 23, 2024
    Inventor: CHUN-FENG LI
  • Patent number: 11984419
    Abstract: Package structures and methods for manufacturing the same are provided. The package structure includes a first bump structure formed over a first substrate. The first bump structure includes a first pillar layer formed over the first substrate and a first barrier layer formed over the first pillar layer. In addition, the first barrier layer has a first protruding portion laterally extending outside a first edge of the first pillar layer. The package structure further includes a second bump structure bonded to the first bump structure through a solder joint. In addition, the second bump structure includes a second pillar layer formed over a second substrate and a second barrier layer formed over the second pillar layer. The first protruding portion of the first barrier layer is spaced apart from the solder joint.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: May 14, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Hung Chen, Yu-Nu Hsu, Chun-Chen Liu, Heng-Chi Huang, Chien-Chen Li, Shih-Yen Chen, Cheng-Nan Hsieh, Kuo-Chio Liu, Chen-Shien Chen, Chin-Yu Ku, Te-Hsun Pang, Yuan-Feng Wu, Sen-Chi Chiang
  • Publication number: 20240096297
    Abstract: In some examples, a controller of a wearable device causes display by the wearable device of a test image, and adjusts a color property of the displayed test image. In response to an input provided by a user responsive to the displayed test image as the color property is adjusted, the controller determines a distribution of color wavelengths for an eye of the user, and detects a color vision deficiency of the user based on the determined distribution of color wavelengths. The controller provides control information to control a display device of the wearable device to compensate for the color vision deficiency.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 21, 2024
    Inventors: Hsiang-Ta Ke, Yu-Ren Chen, Chun-Feng Li
  • Publication number: 20240077922
    Abstract: An electronic system using a USB type-C port and an abnormal elimination method thereof are provided. After sending a hard reset request to a power adapter, a host device determines whether to enter an error recovery state according to whether an initialization signal is at a first preset level for a first preset time, so that the initialization signal is changed to a second preset level, or whether to force the initialization signal to change to the second preset level according to whether the initialization signal is at the first preset level for a second preset time.
    Type: Application
    Filed: November 30, 2022
    Publication date: March 7, 2024
    Applicant: Acer Incorporated
    Inventors: Yuan-Yi Li, Ming-Feng Hsieh, Chun-Chih Kuo
  • Patent number: 11474618
    Abstract: Examples of establishing a communication link based on an activity on a keyboard are described. In an example, the activity may be detected on the keyboard of a computing device. Based on the detection, the computing device may send a request to an input device for establishing a wireless communication link with the computing device. Upon receiving an acceptance of the request by the input device, the computing device may establish the wireless communication link with the computing device.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: October 18, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jung Hsing Wang, Hsiang Ta Ke, Yi Hsien Lin, Chun Feng Li
  • Patent number: 11366271
    Abstract: An optical communication module separating the input and output of light signals by birefringence includes first and second planar optical waveguides with a birefringent crystal connected to both. An optical fiber is adjacent to the second planar optical waveguide. An output beam from a transmitter passes through the first planar optical waveguide, the birefringent crystal, and the second planar optical waveguide in sequence, and enters into the optical fiber. An incoming beam from the optical fiber passes through the second planar optical waveguide, the birefringent crystal, and the first planar optical waveguide in sequence, and then falls onto a receiver.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: June 21, 2022
    Assignee: SHUNYUN TECHNOLOGY (ZHONG SHAN) LIMITED
    Inventor: Chun-Feng Li
  • Publication number: 20220137720
    Abstract: Examples of establishing a communication link based on an activity on a keyboard are described. In an example, the activity may be detected on the keyboard of a computing device. Based on the detection, the computing device may send a request to an input device for establishing a wireless communication link with the computing device. Upon receiving an acceptance of the request by the input device, the computing device may establish the wireless communication link with the computing device.
    Type: Application
    Filed: July 24, 2019
    Publication date: May 5, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Jung Hsing Wang, Hsiang Ta Ke, Yi Hsien Lin, Chun Feng Li
  • Publication number: 20220060975
    Abstract: Techniques to identify information associated with an Access Point (AP) are described. The information associated with an AP corresponding to AP Parameters (APP) is received from a user. Based on the information associated with the AP, a unique ID corresponding to the AP is generated. An AP information ID (APID) is generated by combining the unique ID with the SSID.
    Type: Application
    Filed: February 22, 2019
    Publication date: February 24, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Hsuan-Chieh Li, Shu-min Chang, Chun-Feng Li, Tomax Tai
  • Publication number: 20210191045
    Abstract: An optical communication module separating the input and output of light signals by birefringence includes first and second planar optical waveguides with a birefringent crystal connected to both. An optical fiber is adjacent to the second planar optical waveguide. An output beam from a transmitter passes through the first planar optical waveguide, the birefringent crystal, and the second planar optical waveguide in sequence, and enters into the optical fiber. An incoming beam from the optical fiber passes through the second planar optical waveguide, the birefringent crystal, and the first planar optical waveguide in sequence, and then falls onto a receiver.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 24, 2021
    Inventor: CHUN-FENG LI
  • Patent number: 6745129
    Abstract: A wavelet-based method for analysis of singularities improves analysis and information gathering from seismic trace data. A wavelet transform is applied to seismic trace data. The Hölder exponent is calculated for every time point of the wavelet transform for each seismic trace. Hölder exponents are then plotted versus time. These graphs are utilized in place of seismic traces themselves in creating two and three dimensional images. The graphs produced using Hölder exponents greatly improve interpretation of stratigraphic boundaries and other geological information to be readily identified. This provides for better, more accurate stratigraphic analysis. In addition, the nature of the Hölder exponents of the seismic trace are consistent with Hölder exponents calculated from acoustic impedance of the various strata.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: June 1, 2004
    Assignee: The University of Tulsa
    Inventors: Chun-Feng Li, Christopher L. Liner