Patents by Inventor Wenhua Lin

Wenhua Lin 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: 11472929
    Abstract: This invention relates to a high molecular weight nylon powder composition for 3D printing, its preparation method and use. The composition comprises: 100 parts by weight of high-viscosity nylon powder, 1-5 parts by weight of a flow agent, and 0.1-1 parts by weight of an antioxidant; the high-viscosity nylon powder is one or more selected from nylon 6, nylon 66, nylon 11, nylon 12, nylon 612 and nylon 610; or the powder composition is obtained via polymerization reaction of the raw materials comprising the following components, based on the weight parts of lactam monomers or amide monomers: 100 parts by weight of lactam monomers or amide monomers, 0.005-1 parts by weight of a catalyst, and 0.1-1 parts by weight of an antioxidant.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: October 18, 2022
    Assignee: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Yongmei Ma, Kun Zheng, Jingnan Zhang, Xinyu Cao, Fusong Wang, Xuechun Lin, Wenhua Sun, Jian Xu, Jinyong Dong, Chuncheng Li, Wenxin Fu
  • Patent number: 11474298
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for optical couplers comprising a first optical waveguide and a second optical waveguide coupled to form a 2×2 optical unitary matrix to receive a respective first input optical signal and a second input optical signal. In embodiments the first optical waveguide and second optical waveguide form arms that converge alongside each other to direct the first input optical signal and the second input optical signal along a path that integrates a plurality of tunable phase shifters to transform the first input optical signal or the second input optical signal into a first output optical signal and second output optical signal to be output from the 2×2 optical unitary matrix. Additional embodiments may be described and claimed.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: October 18, 2022
    Assignee: Intel Corporation
    Inventor: Wenhua Lin
  • Patent number: 11450312
    Abstract: A speech recognition method includes: obtaining speech information; and determining beginning and ending positions of a candidate speech segment in the speech information by using a weighted finite state transducer (WFST) network. The candidate speech segment is identified as corresponding to a preset keyword. The method also includes clipping the candidate speech segment from the speech information according to the beginning and ending positions of the candidate speech segment; detecting whether the candidate speech segment includes a preset keyword by using a machine learning model; and determining, upon determining that the candidate speech segment comprises the preset keyword, that the speech information comprises the preset keyword.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 20, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Shilun Lin, Xilin Zhang, Wenhua Ma, Bo Liu, Xinhui Li, Li Lu, Xiucai Jiang
  • Publication number: 20220276437
    Abstract: Thermally compensated waveguides are disclosed herein. According to one aspect, the present disclosure proposes new ways to combine negative TOC (NTOC) material layers within the waveguides. NTOC materials can be implemented in one or more of a cladding layer, a core rib/channel waveguide, a horizontally segmented waveguide, a vertically segmented waveguide, a sub-wavelength grating structure, and/or in various other waveguide structure implementations including arbitrary core or cladding shapes. The integration of NTOC materials improves the temperature dependence of the waveguide spectrum. The need for fast and efficient optical-based technologies is increasing as Internet data traffic growth rate is overtaking voice traffic, pushing the need for optical communications.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Applicant: Intel Corporation
    Inventors: Boris Vulovic, Wenhua Lin, Wei Qian, Tiehui Su, Nutan Gautam, Mehbuba Tanzid, Hao-Hsiang Liao
  • Publication number: 20220204956
    Abstract: The invention is directed to novel variant endoglucanases and their use thereof.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 30, 2022
    Applicant: Fornia BioSolutions, Inc.
    Inventors: Jie Yang, Xiyun Zhang, William Buchanan Porterfield, Wenhua Lu, Khin Oo, Goutami Banerjee, Tatsuya Fukushima, Eric Lin Hu
  • Patent number: 11309871
    Abstract: A narrow pulse generation circuit used in a sequential equivalent sampling system. The circuit comprises a crystal oscillator, an edge sharpening circuit, an avalanche transistor single-tube amplifying circuit and a shaping network connected in sequence, wherein the edge sharpening circuit is used for carrying out edge sharpening on a square wave signal generated by the crystal oscillator; the avalanche transistor single-tube amplifying circuit is used for carrying out avalanche amplification on the sharpened square wave signal to generate a Gaussian pulse signal to adjust the amplitude of a pulse; and the RC shaping network is used for shaping the Gaussian pulse signal to adjust the pulse width at the bottom of the pulse to form a narrow pulse signal. The narrow pulse circuit has a simple structure and narrow pulse width at the bottom and facilitates increasing a signal-to-noise ratio of a whole sequential sampling system.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: April 19, 2022
    Assignee: Nantong Institute of Nanjing University of Posts and Telecommunications Co., Ltd.
    Inventors: Zhikuang Cai, Xuanchen Qi, Wenhua Lin, Guowei Shi, Jian Xiao, Yufeng Guo
  • Patent number: 11251876
    Abstract: Embodiments of the present disclosure are directed toward techniques and apparatus comprising at least one layer of an ONN that includes an optical matrix multiplier provided in a semiconductor substrate to receive a plurality of optical signal inputs and to linearly transform the plurality of optical signal inputs into a plurality of optical signal outputs. The optical matrix multiplier comprises one or more 2×2 unitary optical matrices optically interconnected to implement a singular value decomposition (SVD) of a matrix, and a nonlinear optical device coupled with the optical matrix multiplier in the semiconductor substrate, to receive the optical signal outputs and to provide an optical output that is generated in a nonlinear manner in response to the optical signal outputs of the optical matrix multiplier reaching saturation or attenuation. Additional embodiments may be described and claimed.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 15, 2022
    Assignee: Intel Corporation
    Inventors: Wenhua Lin, Amir Khosrowshahi, Casimir Wierzynski
  • Patent number: 11218223
    Abstract: Embodiments of the present disclosure are directed toward techniques and apparatus comprising at least one layer of an ONN that includes an optical matrix multiplier provided in a semiconductor substrate to receive a plurality of optical signal inputs and to linearly transform the plurality of optical signal inputs into a plurality of optical signal outputs. The optical matrix multiplier comprises one or more 2×2 unitary optical matrices optically interconnected to implement a singular value decomposition (SVD) of a matrix, and a nonlinear optical device coupled with the optical matrix multiplier in the semiconductor substrate, to receive the optical signal outputs and to provide an optical output that is generated in a nonlinear manner in response to the optical signal outputs of the optical matrix multiplier reaching saturation or attenuation. Additional embodiments may be described and claimed.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: January 4, 2022
    Assignee: Intel Corporation
    Inventors: Wenhua Lin, Amir Khosrowshahi, Casimir Wierzynski
  • Publication number: 20210364627
    Abstract: An ultra-wideband ground penetrating radar control system, comprising a synchronous clock generating circuit, a GPS positioning module, a measuring wheel encoder module, a digitally controlled delay circuit for equivalent sampling, an analog-to-digital conversion (ADC) circuit, and a main controller. The synchronous clock generating circuit, the GPS positioning module, the measuring wheel encoder module, the digitally controlled delay circuit and the ADC circuit are all connected to the main controller. The synchronous clock generating circuit is further connected to an external ultra-wideband radar transmitter. The digitally controlled delay circuit is further connected to an external sampling pulse generation circuit for equivalent sampling. The ADC circuit is further connected to an external sampling gate for equivalent sampling. The main controller is further connected to an external server via Ethernet. The volume of an ultra-wideband ground penetrating radar control system is reduced.
    Type: Application
    Filed: January 14, 2019
    Publication date: November 25, 2021
    Applicant: Nantong Institute of Nanjing University of Posts and Telecommunications Co.,Ltd.
    Inventors: Zhikuang CAI, Xuanchen QI, Wenhua LIN, Ji WANG, Jian XIAO, Yufeng GUO
  • Publication number: 20210359668
    Abstract: A narrow pulse generation circuit used in a sequential equivalent sampling system. The circuit comprises a crystal oscillator, an edge sharpening circuit, an avalanche transistor single-tube amplifying circuit and a shaping network connected in sequence, wherein the edge sharpening circuit is used for carrying out edge sharpening on a square wave signal generated by the crystal oscillator; the avalanche transistor single-tube amplifying circuit is used for carrying out avalanche amplification on the sharpened square wave signal to generate a Gaussian pulse signal to adjust the amplitude of a pulse; and the RC shaping network is used for shaping the Gaussian pulse signal to adjust the pulse width at the bottom of the pulse to form a narrow pulse signal. The narrow pulse circuit has a simple structure and narrow pulse width at the bottom and facilitates increasing a signal-to-noise ratio of a whole sequential sampling system.
    Type: Application
    Filed: January 14, 2019
    Publication date: November 18, 2021
    Applicant: Nantong Institute of Nanjing University of Posts and Telecommunications Co.,Ltd.
    Inventors: Zhikuang CAI, Xuanchen QI, Wenhua LIN, Guowei SHI, Jian XIAO, Yufeng GUO
  • Publication number: 20210314068
    Abstract: In one embodiment, an apparatus comprises: a coherent optical receiver front-end circuit to receive an optical signal comprising information and further to receive a local oscillator optical signal, and output an orthogonal electrical signal based on the optical signal; a processing circuit coupled to the coherent optical receiver front-end circuit to receive the orthogonal electrical signal and process the orthogonal electrical signal to generate therefrom sum of squares information; and a non-coherent receiver coupled to the processing circuit to recover the information from the sum of squares information. Other embodiments are described and claimed.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 7, 2021
    Inventors: Christian Malouin, Jin Hong, Wenhua Lin
  • Publication number: 20210302652
    Abstract: Techniques for photonic demultiplexers are disclosed. In the illustrative embodiment, an output of an unbalanced interferometer formed from waveguides is positioned to the input of a slab grating, with several output waveguides collecting light in different wavelength ranges to create different channels for the demultiplexer system. In some embodiments, one or more auxiliary structures may be positioned near the input of the grating to change the structure of the spatial modes being provided as an input to the grating in order to alter the spectra of the output channels.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 30, 2021
    Applicant: Intel Corporation
    Inventors: Boris M. Vulovic, Tiehui Su, Nutan Gautam, Wenhua Lin, Mehbuba Tanzid, Ansheng Liu, Wei Qian
  • Publication number: 20210133547
    Abstract: Techniques and configurations for an optical neural network (ONN) with layers of optical matrix multipliers and an optical nonlinearity function are described herein. The techniques provide for programmable matrix multipliers, allowing for a partitioned use of a part of a matrix as needed, for computation efficiency. The techniques provide for multiple pass-through the same optical matrix die on the same photonic integrated circuit (PIC) chip and for connecting multiple layers of the ONN and running through them in sequence. The techniques further provide for scaling the ONN to different sizes. Additional embodiments may be described and claimed.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 6, 2021
    Inventors: Wenhua Lin, Amir Khosrowshahi, Casimir Wierzynski
  • Publication number: 20210132650
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for a photonics integrated circuit (IC) for an optical neural network (ONN). In embodiments, the photonics IC includes monolithically optoelectronic components in a single semiconductor substrate including a combination of one or more of integrated array of light sources, a plurality of optical modulators, an optical unitary matrix multiplier, non-linear optical amplifiers or attenuators, and a plurality of photodetectors. In embodiments, the optical unitary matrix multiplier comprises a plurality of 2×2 unitary optical matrices optically interconnected, wherein each 2×2 unitary optical matrix comprises a plurality of phase shifters. In embodiments, each 2×2 unitary optical matrix is to phase shift, split, and/or combine one or more of the optical signal inputs. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 6, 2021
    Inventors: Wenhua Lin, Casimir Wierzynski, Amir Khosrowshahi, Bharadwaj Parthasarathy, Jin Hong, Robert Blum
  • Publication number: 20210135764
    Abstract: Embodiments of the present disclosure are directed toward techniques and apparatus comprising at least one layer of an ONN that includes an optical matrix multiplier provided in a semiconductor substrate to receive a plurality of optical signal inputs and to linearly transform the plurality of optical signal inputs into a plurality of optical signal outputs. The optical matrix multiplier comprises one or more 2×2 unitary optical matrices optically interconnected to implement a singular value decomposition (SVD) of a matrix, and a nonlinear optical device coupled with the optical matrix multiplier in the semiconductor substrate, to receive the optical signal outputs and to provide an optical output that is generated in a nonlinear manner in response to the optical signal outputs of the optical matrix multiplier reaching saturation or attenuation. Additional embodiments may be described and claimed.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 6, 2021
    Inventors: Wenhua Lin, Amir Khosrowshahi, Casimir Wierzynski
  • Publication number: 20210072784
    Abstract: Embodiments of the present disclosure describe techniques and configurations for a nonlinear optical device used to construct an optical neural network (ONN) with an arbitrary number of layers of matrix multipliers. The nonlinear optical device includes a waveguide to receive optical input and a gain medium coupled with the waveguide, to amplify or attenuate the received optical input, to provide an output that is amplified in a nonlinear manner in response to the optical input reaching saturation, where the nonlinearly amplified output is to provide a nonlinear activation function for an ONN. Additional embodiments may be described and claimed.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 11, 2021
    Inventors: Wenhua Lin, Haisheng Rong, Jin Hong
  • Publication number: 20210063645
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for optical couplers comprising a first optical waveguide and a second optical waveguide coupled to form a 2×2 optical unitary matrix to receive a respective first input optical signal and a second input optical signal. In embodiments the first optical waveguide and second optical waveguide form arms that converge alongside each other to direct the first input optical signal and the second input optical signal along a path that integrates a plurality of tunable phase shifters to transform the first input optical signal or the second input optical signal into a first output optical signal and second output optical signal to be output from the 2×2 optical unitary matrix. Additional embodiments may be described and claimed.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 4, 2021
    Inventor: Wenhua Lin
  • Publication number: 20210064958
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for an optical accelerator including a photonics integrated circuit (PIC) for an optical neural network (ONN). In embodiments, an optical accelerator package includes the PIC and an electronics integrated circuit (EIC) that is heterogeneously integrated into the optical accelerator package to proximally provide pre- and post-processing of optical signal inputs and optical signal outputs provided to and received from an optical matrix multiplier of the PIC. In some embodiments, the EIC is a single EIC or discrete EICs to provide pre- and post-processing of the optical signal inputs and optical signal outputs including optical to electrical and electrical to optical transduction. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 4, 2021
    Inventors: Wenhua Lin, Erik Norden, Bharadwaj Parthasarathy, Jin Hong, Minnie Ho
  • Publication number: 20200252133
    Abstract: Embodiments may relate to an optical transmitter that includes a laser to produce an optical signal, and a modulator to encode data into the optical signal to produce an optical data signal. The optical transmitter may further include an amplifier that is to amplify a power of the optical data signal to produce an output signal. Other embodiments may be described or claimed.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Applicant: Intel Corporation
    Inventors: Jin Hong, Wenhua Lin
  • Patent number: 10718906
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for an optical device having a multiplexer and/or demultiplexer with an input and/or output optical waveguide including one or more waveguide segments tapered according to a non-linear function such as a curve. In embodiments, the one or more waveguide segments is tapered according to, e.g., a quadratic function, a parabolic function, or an exponential function. In accordance with some embodiments, the tapered segment assists in spatially dispersing the propagating light along a substantially uniform phase wavefront at a mirror that includes an echelle grating surface that is shaped to receive/reflect the light at the substantially uniform phase wavefront. In embodiments, the one or more waveguide segments is tapered according to a curve to receive a portion of light from the substantially uniform phase wavefront at the echelle grating surface. Additional embodiments may be described and claimed.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: July 21, 2020
    Assignee: Intel Corporation
    Inventor: Wenhua Lin