Patents by Inventor Ding-Wei Huang

Ding-Wei Huang 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: 20200380194
    Abstract: A method (of generating a layout diagram) includes: identifying, in the layout diagram, a group of three or more cells which violates a horizontal constraint vector (HCV) and is arranged so as to exhibit two or more vertically-aligned edge-pairs (VEPs); each VEP including two members representing at least partial portions of vertical edges of corresponding cells of the group; relative to a horizontal direction, the members of each VEP being disposed in edgewise-abutment and separated by a corresponding actual gap; and the HCV having separation thresholds, each of which has a corresponding VEP and represents a corresponding minimum gap in the horizontal direction between the members of the corresponding VEP; and for each of at least one but fewer than all of the separation thresholds, selectively moving a given one of cells corresponding to one of the members of the corresponding VEP thereby to avoid violating the HCV.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 3, 2020
    Inventors: Meng-Kai HSU, Sheng-Hsiung CHEN, Wai-Kei MAK, Ting-Chi WANG, Yu-Hsiang CHENG, Ding-Wei HUANG
  • Patent number: 10776551
    Abstract: A method (of generating a layout diagram) includes: identifying, in the layout diagram, a group of three or more cells which violates a horizontal constraint vector (HCV) and is arranged so as to exhibit two or more vertically-aligned edge-pairs (VEPs); each VEP including two members representing at least partial portions of vertical edges of corresponding cells of the group; relative to a horizontal direction, the members of each VEP being disposed in edgewise-abutment and separated by a corresponding actual gap; and the HCV having separation thresholds, each of which has a corresponding VEP and represents a corresponding minimum gap in the horizontal direction between the members of the corresponding VEP; and for each of at least one but fewer than all of the separation thresholds, selectively moving a given one of cells corresponding to one of the members of the corresponding VEP thereby to avoid violating the HCV.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: September 15, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Meng-Kai Hsu, Sheng-Hsiung Chen, Wai-Kei Mak, Ting-Chi Wang, Yu-Hsiang Cheng, Ding-Wei Huang
  • Publication number: 20200004912
    Abstract: A method (of generating a layout diagram) includes: identifying, in the layout diagram, a group of three or more cells which violates a horizontal constraint vector (HCV) and is arranged so as to exhibit two or more vertically-aligned edge-pairs (VEPs); each VEP including two members representing at least partial portions of vertical edges of corresponding cells of the group; relative to a horizontal direction, the members of each VEP being disposed in edgewise-abutment and separated by a corresponding actual gap; and the HCV having separation thresholds, each of which has a corresponding VEP and represents a corresponding minimum gap in the horizontal direction between the members of the corresponding VEP; and for each of at least one but fewer than all of the separation thresholds, selectively moving a given one of cells corresponding to one of the members of the corresponding VEP thereby to avoid violating the HCV.
    Type: Application
    Filed: June 14, 2019
    Publication date: January 2, 2020
    Inventors: Meng-Kai HSU, Sheng-Hsiung CHEN, Wai-Kei MAK, Ting-Chi WANG, Yu-Hsiang CHENG, Ding-Wei HUANG
  • Patent number: 7003195
    Abstract: A dynamic power equalizer comprises an array waveguide grating having an input waveguide and an output waveguide at one end, and an input waveguide group and an output waveguide group at the other end. The double loops are composed of the input waveguide and the output waveguide group, and the input waveguide group and the output waveguide are used to process the input optical signal components having different powers into the output optical signal having a single and equalized optical power through wavelength-division de-multiplexing and wavelength-division multiplexing, thus achieving dynamic optical power equalization.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: February 21, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Ding-Wei Huang, Shih-Jung Chang, Tsung-Hsuan Chiu
  • Patent number: 6912344
    Abstract: A thermo-optic wave-guide switch. The switch selectively switches the paths of an optical signal. The thermo-optic wave-guide switch includes a multi-mode wave-guide having an input port, a first output port and a second output port, and a thin film heater formed on the side of the multi-mode wave-guide. When the thin film heater does not provide the multi-mode wave-guide with heat and a signal is received by the input port, the first output port outputs the signal in a cross state according to the self-image theorem, and when the thin film heater provides the multi-mode wave-guide with heat and a signal is received by the input port, the second output port outputs the signal in a bar state.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: June 28, 2005
    Assignee: Industrial Technology Research Institute
    Inventors: King-Chang Shu, Ding-Wei Huang, Tsung-Hsuan Chiu, Yinchieh Lai
  • Publication number: 20030099421
    Abstract: A thermo-optic wave-guide switch. The switch selectively switches the paths of an optical signal. The thermo-optic wave-guide switch includes a multi-mode wave-guide having an input port, a first output port and a second output port, and a thin film heater formed on the side of the multi-mode wave-guide. When the thin film heater does not provide the multi-mode wave-guide with heat and a signal is received by the input port, the first output port outputs the signal in a cross state according to the self-image theorem, and when the thin film heater provides the multi-mode wave-guide with heat and a signal is received by the input port, the second output port outputs the signal in a bar state.
    Type: Application
    Filed: May 6, 2002
    Publication date: May 29, 2003
    Inventors: King-Chang Shu, Ding-Wei Huang, Tsung-Hsuan Chiu, Yinchieh Lai
  • Patent number: 6560380
    Abstract: Along with several few-channel and low-density wavelength division multiplexer/de-multiplexer, a novel planar lightwave circuit (PLC) interleaver is invented to achieve high-density wavelength division multiplexing and de-multiplexing in a wavelength division multiplexing fiber communication system. The invention uses a PLC as its basic structure and applies the principle that the product of the number of output optical waveguides and the channel spacing is equal to the free spectral range of the spectrum of any output optical waveguide to make a compact PLC interleaver.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: May 6, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Ding-Wei Huang, Tsung-Hsuan Chiu, Yin-Chieh Lai
  • Publication number: 20020191879
    Abstract: A fiber-optic switchable wavelength filter comprises a fiber grating positioned in the thin section of the fiber, a horn with the tip attached to the side of the fiber, and a piezoelectric transducer fixed to the bottom of the horn. Upon receiving a voltage signal, the piezoelectric transducer can create acoustic wave in the horn, wherein the amplitude of the acoustic vibration in the horn is controlled by the magnitude of the voltage signal. The vibration energy is transferred and focused from the horn to the fiber, such that the operation wavelength is switched by changing the reflectivity of the optical signal at the Bragg wavelength and the reflectivity of the optical signal at the cladding-mode coupling wavelength.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 19, 2002
    Inventors: Wen-fung Liu, Chih-Chung Yang, Ding-Wei Huang
  • Patent number: 6483864
    Abstract: A partial reflective laser output device comprising a partial reflective unit mounted on a laser output device (such as a vertical cavity emitting laser), the partial reflective unit allowing the laser beam emitted from the laser output device to be partially reflected while the rest penetrating through. On one hand, this device decreases the intensity of output laser light so as to comply with the eye safety standard; the reflected light is absorbed by a photodiode (PD) to perform auto power control on the laser output device on the other. In addition, by adjusting the tilting angle of the partial reflective unit or making a curvature thereon, the reflected light can have no destructive interference with the output light and can even be focused onto the PD so that there would be no relative intensity noise problem and the size of the PD can be made smaller to lower the cost.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: November 19, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Rong-Heng Yuang, Chia-Ming Tsai, Ding-Wei Huang, Mu-Tao Chu
  • Publication number: 20020159675
    Abstract: Along with several few-channel and low-density wavelength division multiplexer/de-multiplexer, a novel planar lightwave circuit(PLC) interleaver is invented to achieve high-density wavelength division multiplexing and de-multiplexing in a wavelength division multiplexing fiber communication system. The invention uses a PLC as its basic structure and applies the principle that the product of the number of output optical waveguides and the channel spacing is equal to the free spectral range of the spectrum of any output optical waveguide to make a compact PLC interleaver.
    Type: Application
    Filed: June 25, 2001
    Publication date: October 31, 2002
    Inventors: Ding-Wei Huang, Tsung-Hsuan Chiu, Yin-Chieh Lai
  • Patent number: 6181840
    Abstract: A reflectivity-tunable fiber reflector is disclosed. The Bragg reflectivity of the fiber grating is modulated by exciting the transverse vibration of the fiber through an acoustic wave. The excitation of the transverse vibration, leading to fiber grating tilting and fiber micro-bending, induces the coupling of the fiber core mode into cladding modes. This leads to the reduction of core-mode power and hence that of Bragg reflection. This mechanism is applied by this invention to control the reflectivity of a fiber optic Bragg grating after fabrication. The fiber reflector is suitable for fiber-compatible acousto-optical switching.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: January 30, 2001
    Assignee: National Science Council
    Inventors: Ding-Wei Huang, Wen-Fung Liu, Cheng-Wen Wu, Chih-Chung Yang