Patents by Inventor Wei Kao

Wei Kao 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: 20210021947
    Abstract: A sound adjustment method is disclosed. The sound adjustment method includes the following the steps: receiving a sound adjustment command; receiving a right channel sound signal and a left channel sound signal; selecting a corresponding adjustment mode according to the sound adjustment command and processing the right channel sound signal and the left channel sound signal based on the adjustment mode to generate a right channel first sound signal and a left channel first sound signal, wherein different adjustment modes have different intensity adjustment levels; shifting the frequency of the right channel first sound signal by X Hz to generate a right channel second sound signal and shifting the frequency of the left channel first sound signal by Y Hz to generate a left channel second sound signal, wherein 0.5?|X?Y|?100; outputting the right channel second sound signal and the left channel second sound signal.
    Type: Application
    Filed: November 5, 2019
    Publication date: January 21, 2021
    Inventors: Kuo-Wei KAO, Po-Jui WU, Yu-Chieh HUANG, Wei-Lin CHANG, Kai-Yuan HSIAO, Cheng-Te WANG, I-Ting LEE, Kuo-Ping YANG
  • Patent number: 10897665
    Abstract: A method of decreasing the effect of an interference sound is disclosed and includes the following the steps: receiving an input sound by a first microphone and a second microphone to respectively acquire a first sound signal and a second sound signal; determining and acquiring a plurality of sound source position data according to a phase difference between a plurality of sound frames of at least one position low-frequency sound signal of the first sound signal and a plurality of sound frames of at least one position low-frequency sound signal of the second sound signal; determining a probability that a main direction of the input sound is in accordance with a target orientation according to each of the sound source position data; and adjusting, according to the probability, the sound volume of low-frequency sound signals of the first sound signal and the second sound signal being outputted.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: January 19, 2021
    Assignee: PIXART IMAGING INC.
    Inventors: Kuo-Wei Kao, Yu-Chieh Huang, Po-Jui Wu, Kuo-Ping Yang
  • Patent number: 10890553
    Abstract: A sensing device includes a first III-V compound stack and a second III-V compound stack. The first III-V compound stack has a first sensing area, and the second III-V compound stack has a second sensing area. A passivation layer fully covers the second sensing area. The first III-V compound stack is physically separated from the second III-V compound stack, and has material compositions and structures same as the second III-V compound stack.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: January 12, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Kunal Kashyap, Kun-Wei Kao, Yih-Hua Renn, Meng-Lun Tsai, Zong-Xi Chen, Hsin-Mao Liu, Jui-Hung Yeh, Hung-Chi Wang
  • Publication number: 20200395032
    Abstract: A method for eliminating sound is disclosed. The method is applied to an electronic device capable of connecting with a sound playback device and includes a microphone. The method includes the following steps of: receiving a previous input sound via the microphone to generate a previous input sound signal; transmitting the previous input sound signal to the sound playback device; receiving a current input sound via the microphone to generate a current input sound signal; filtering the current input sound signal by removing the previous input sound from the current input sound signal; playing the filtered current input sound signal.
    Type: Application
    Filed: August 27, 2020
    Publication date: December 17, 2020
    Inventors: Kuo-Wei KAO, Cheng-Te WANG, Po-Jui WU, Jian-Ying LI, Kuo-Ping YANG
  • Patent number: 10868166
    Abstract: A semiconductor device is formed by a multi-step etching process that produces trench openings in a silicon substrate immediately adjacent transistor gate structures formed over the substrate surface. The multi-step etching process is a Br-based etching operation with one step including nitrogen and a further step deficient of nitrogen. The etching process does not attack the transistor structure and forms the openings. The openings are bounded by upper surfaces that extend downwardly from the substrate surface and are substantially vertical, and lower surfaces that bulge outwardly from the upper vertical sections and undercut the transistor structure. The openings may be filled with a suitable source/drain material to produce SSD transistors with desirable Idsat characteristics.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: December 15, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ta-Wei Kao, Shiang-Bau Wang, Ming-Jie Huang, Chi-Hsi Wu, Shu-Yuan Ku
  • Publication number: 20200359143
    Abstract: A method of generating sounds for reducing an effect of tinnitus is disclosed. The method includes the following steps: acquiring a sound frequency of a tinnitus sound of a user, and playing a plurality of pure tones within a frequency range during a playback time, wherein the plurality of pure tones include a plurality of first pure tones and a plurality of second pure tones; the plurality of first pure tones and the sound frequency are located at a first frequency area, and the plurality of second pure tones are located at a second frequency area; the first frequency area covers X Hz, where 100?X?12000, the second frequency area covers the remaining portion of the frequency range excluding the first frequency area, and the plurality of first pure tones accounts for M % of the plurality of pure tones, where 50<M?90.
    Type: Application
    Filed: September 3, 2019
    Publication date: November 12, 2020
    Inventors: Kuo-Wei KAO, Neo Bob Chih-Yung YOUNG, Kuo-Ping YANG
  • Patent number: 10796708
    Abstract: A method for eliminating sound is disclosed. The method is applied to an electronic device capable of connecting with a sound playback device and includes a microphone. The method includes the following steps of: receiving a first input sound via the microphone to acquire a first input sound signal; recording the first input sound signal and transmitting the first input sound signal to the sound playback device; receiving a second input sound from the sound playback device to acquire a second input sound signal, wherein the second input sound is generated by the sound playback device according to the first input sound signal; determining a difference in generation times between the first input sound signal and the second input sound signal; and filtering the second input sound signal according to the difference in generation times and the first input sound signal.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 6, 2020
    Assignee: UNLIMITER MFA CO., LTD.
    Inventors: Kuo-Wei Kao, Cheng-Te Wang, Po-Jui Wu, Jian-Ying Li, Kuo-Ping Yang
  • Publication number: 20200296534
    Abstract: A sound playback system and an output sound adjusting method thereof are disclosed. The method includes the follow steps: obtaining an input sound signal and knowing an average input volume of the input sound signal; detecting an ambient noise, and analyzing an average noise volume and a noise frequency hand of the ambient noise; determining whether the average noise volume of the ambient noise is louder than the average input volume; if yes, adjusting a specific frequency band of the input sound signal to increase a first gain value to form an output sound signal, wherein the specific frequency band and the noise frequency band of the ambient noise belongs to the same frequency band or different frequency bands; and playing the output sound signal.
    Type: Application
    Filed: December 6, 2019
    Publication date: September 17, 2020
    Inventors: Cheng-Te WANG, Kuo-Wei KAO, Kuan-Li CHAO, Kuo-Ping YANG
  • Patent number: 10735149
    Abstract: An eye diagram measurement device includes a first mapping circuitry, a count circuitry, a second mapping circuitry and a memory circuitry. The first mapping circuitry maps one of plurality of internal signals of an electronic device to a first data signal having a predetermined number of bits. The counter circuitry performs a counting operation according to the first data signal and a plurality of signal values associated with the predetermined number of bits, to generate a plurality of count signals. The second mapping circuitry maps the count signals respectively to a plurality of eye diagram measurement signals corresponding to a present phase. The memory circuitry stores the eye diagram measurement signals in order to provide the eye diagram measurement signals to an external system for generating an eye diagram measurement result of the electronic device.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: August 4, 2020
    Assignees: GLOBAL UNICHIP CORPORATION, TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wen-Juh Kang, Yu-Chu Chen, Hsun-Wei Kao
  • Publication number: 20200211579
    Abstract: A sound playback system and an output sound adjusting method thereof are disclosed. The method includes the following steps: receiving an input sound signal from a user, wherein the input sound signal includes a voice signal indicating the age of the user; transmitting the input sound signal to a remote voice system; performing a voice recognition process according to the voice signal of the input sound signal to obtain a voice recognition result; adjusting a gain value of each frequency band of an output sound signal according to the voice in recognition result; and transmitting the output sound signal to a near-end electronic device to output the output sound signal to be heard by the user.
    Type: Application
    Filed: November 22, 2019
    Publication date: July 2, 2020
    Inventors: Kuo-Ping YANG, Kuo-Wei KAO, Kai-Yuan HSIAO, Jian-Ying LI
  • Publication number: 20200169803
    Abstract: A method of controlling a headset includes: obtaining a first sound received by a first microphone and obtaining a second sound received by a second microphone; via a control module, determining if a sound energy intensity difference between the first sound and the second sound is greater than an energy threshold; executing a command according to the first sound or the second sound, and a requirement of executing the command includes that the sound energy intensity difference between the first sound and the second sound is greater than the energy threshold.
    Type: Application
    Filed: March 18, 2019
    Publication date: May 28, 2020
    Inventors: Kuo-Wei KAO, Po-Jui WU, Kai-Yuan HSIAO, Kuo-Ping YANG
  • Publication number: 20200145748
    Abstract: A method of decreasing the effect of an interference sound is disclosed and includes the following the steps: receiving an input sound by a first microphone and a second microphone to respectively acquire a first sound signal and a second sound signal; determining and acquiring a plurality of sound source position data according to a phase difference between a plurality of sound frames of at least one position low-frequency sound signal of the first sound signal and a plurality of sound frames of at least one position low-frequency sound signal of the second sound signal; determining a probability that a main direction of the input sound is in accordance with a target orientation according to each of the sound source position data; and adjusting, according to the probability, the sound volume of low-frequency sound signals of the first sound signal and the second sound signal being outputted.
    Type: Application
    Filed: May 2, 2019
    Publication date: May 7, 2020
    Inventors: Kuo-Wei KAO, Yu-Chieh HUANG, Po-Jui WU, Kuo-Ping YANG
  • Patent number: 10615416
    Abstract: A negative electrode material applied to a lithium battery or a sodium battery is provided. The negative electrode material is composed of a first chemical element, a second chemical element and a third chemical element with an atomic ratio of x, 1?x, and 2, wherein 0<x<1, the first chemical element is selected from the group consisting of molybdenum (Mo), chromium (Cr), tungsten (W), manganese (Mn), technetium (Tc) and rhenium (Re), the second chemical element is selected from the group consisting of Mo, Cr and W, the third chemical element is selected from the group consisting of sulfur (S), selenium (Se) and tellurium (Te), and the first chemical element is different from the second chemical element.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 7, 2020
    Assignee: Chung-Yuan Christian University
    Inventors: Chun-Chuen Yang, Wei-Jen Liu, Yung-Hsiang Tung, Irish Valerie Buiser Maggay, Cheng-Wei Kao, Tung-Chi Tsai
  • Patent number: 10607591
    Abstract: A sound playback device and a method for masking interference sound through a noise masking signal thereof are disclosed. The method comprises the steps of: playing an audio signal as a noise masking signal; receiving an ambient sound; analyzing whether the ambient sound has an interference sound in N different frequency bands; if so, finding at least one interference sound frequency band and a time period, and the interference sound conforms to the condition that an instant sound entropy value is greater than a dynamic sound average entropy value, wherein the instant sound entropy value is the calculated sound entropy value in a current sampling time; the dynamic sound average entropy value is an average entropy value of the sum of the previous instant sound entropy values; and increasing an energy of the noise masking signal in the interference sound frequency band and the time period.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: March 31, 2020
    Assignee: UNLIMITER MFA CO., LTD.
    Inventors: Kuo-Wei Kao, Cheng-Te Wang, Yu-Chieh Huang, Wei-Lin Chang, I-Ting Lee, Kuo-Ping Yang
  • Publication number: 20200098382
    Abstract: A method for eliminating sound is disclosed. The method is applied to an electronic device capable of connecting with a sound playback device and includes a microphone. The method includes the following steps of: receiving a first input sound via the microphone to acquire a first input sound signal; recording the first input sound signal and transmitting the first input sound signal to the sound playback device; receiving a second input sound from the sound playback device to acquire a second input sound signal, wherein the second input sound is generated by the sound playback device according to the first input sound signal; determining a difference in generation times between the first input sound signal and the second input sound signal; and filtering the second input sound signal according to the difference in generation times and the first input sound signal.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 26, 2020
    Inventors: Kuo-Wei KAO, Cheng-Te WANG, Po-Jui WU, Jian-Ying LI, Kuo-Ping YANG
  • Publication number: 20200014501
    Abstract: An eye diagram measurement device includes a first mapping circuitry, a count circuitry, a second mapping circuitry and a memory circuitry. The first mapping circuitry maps one of plurality of internal signals of an electronic device to a first data signal having a predetermined number of bits. The counter circuitry performs a counting operation according to the first data signal and a plurality of signal values associated with the predetermined number of bits, to generate a plurality of count signals. The second mapping circuitry maps the count signals respectively to a plurality of eye diagram measurement signals corresponding to a present phase. The memory circuitry stores the eye diagram measurement signals in order to provide the eye diagram measurement signals to an external system for generating an eye diagram measurement result of the electronic device.
    Type: Application
    Filed: May 10, 2019
    Publication date: January 9, 2020
    Inventors: Wen-Juh KANG, Yu-Chu CHEN, Hsun-Wei KAO
  • Publication number: 20200007994
    Abstract: A method of reducing a noise generated by touching a hearing aid includes: obtaining a left ear sound received by a left ear hearing aid and a right ear sound received by a right ear hearing aid; determining if a sound energy intensity difference between the left ear sound and the right ear sound is greater than an energy threshold; if so, determining a larger energy intensity between the left ear sound and the right ear sound; if the energy intensity of the left ear sound is larger, replacing the left ear sound with the right ear sound such that the left and right ear hearing aids both output the right ear sound.
    Type: Application
    Filed: September 19, 2018
    Publication date: January 2, 2020
    Inventors: Kuo-Wei KAO, Kuan-Li CHAO, Po-Jui WU, Jian-Ying LI, Cheng-Te WANG, Kuo-Ping YANG
  • Patent number: 10484290
    Abstract: A bridge module is provided. The bridge module comprises a first transmission unit electrically connected to a host to transfer data with the host at an uplink data transmission rate; a second transmission unit electrically connected to a data transmission device to transfer data with the data transmission device at a downlink data transmission rate; and a processing device configured to adjust the downlink data transmission rate according to the uplink data transmission rate. A data transmission method is also provided.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: November 19, 2019
    Assignee: ASMEDIA TECHNOLOGY INC.
    Inventors: Wei-Kao Chang, Chun-Chih Tai
  • Publication number: 20190055616
    Abstract: A high-efficiency method for producing metal from metal oxide by carbothermic reduction includes step in which a holed cake is provided, which has a composition comprising a metal oxide, a carbonaceous reducing agent, and a binder, and the holed cake has a plurality of holes. The method continues with step in which the holed cake is placed in a high-temperature furnace for carbothermic reduction, to reduce the metal oxide in the holed cake into a metal.
    Type: Application
    Filed: December 21, 2017
    Publication date: February 21, 2019
    Inventors: TSUNG-YEN HUANG, FENG-YI LIN, SHIH-HSIEN LIU, WEI-KAO LU
  • Publication number: 20190051901
    Abstract: A negative electrode material applied to a lithium battery or a sodium battery is provided. The negative electrode material is composed of a first chemical element, a second chemical element and a third chemical element with an atomic ratio of x, 1-x, and 2, wherein 0<x<1, the first chemical element is selected from the group consisting of molybdenum (Mo), chromium (Cr), tungsten (W), manganese (Mn), technetium (Tc) and rhenium (Re), the second chemical element is selected from the group consisting of Mo, Cr and W, the third chemical element is selected from the group consisting of sulfur (S), selenium (Se) and tellurium (Te), and the first chemical element is different from the second chemical element.
    Type: Application
    Filed: November 15, 2017
    Publication date: February 14, 2019
    Inventors: Chun-Chuen YANG, Wei-Jen LIU, Yung-Hsiang TUNG, Irish Valerie Buiser MAGGAY, Cheng-Wei KAO, Tung-Chi TSAI