Patents by Inventor Kai Meng

Kai Meng 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: 11162915
    Abstract: A built-in electrode electrical capacitance tomography sensor, characterized in that the electrical capacitance tomography sensor is a barrel sensor, and sequentially comprises, from inside to outside, an array distribution electrode (1), an electrode insulating sleeve (2), a flange outer tube (3), an insulating tube (4) and a signal transmission line. The array distribution electrode (1) includes N electrode sheets of the same size and consists of measurement ends and fixed ends, N being an integer of 8-16. The electrode is connected to an electrical capacitance tomography signal acquisition system (13) by means of a transmission line, and the acquired electrical capacitance data is sent to the electrical capacitance tomography signal acquisition system (13) by means of a signal transmission line, and is then sent to an imaging computer by means of the electrical capacitance tomography signal acquisition system (13) so as to complete image reconstruction.
    Type: Grant
    Filed: April 28, 2019
    Date of Patent: November 2, 2021
    Assignee: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Shuanghe Meng, Mao Ye, Kai Huang, Qiang Guo, Jingjing Shen, Tao Zhang, Zhongmin Liu
  • Publication number: 20210337311
    Abstract: A two-channel balance method and an electronic device using the same are provided. The two-channel balance method includes the following steps. A gain-frequency information of a two-channel signal is adjusted. A sampling delay information of the two-channel signal is calculated according to a distance information among a sound receiving unit, a left speaker unit and a right speaker unit. A forward test audio file or a surround test audio file is generated according to the sampling delay information. A phase offset information is estimated according to at least the forward test audio file or the surround test audio file. A phase offset direction information is determined. A phase information of the two-channel signal is adjusted according to the phase offset information and the phase offset direction information.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Applicant: Acer Incorporated
    Inventors: Po-Jen TU, Jia-Ren CHANG, Kai-Meng TZENG
  • Patent number: 11158301
    Abstract: A method for eliminating a specific object voice and an ear-wearing audio device using the same are provided. The ear-wearing audio device includes a plurality of voice receiving units, a voice direction tracking unit, a direction enhancement unit, a window cutting unit, a voiceprint recognition unit, a voice cancellation unit and two speakers. The voice receiving units are arranged in an array to obtain a sound signal. The voice direction tracking unit is configured to track a plurality of sound sources to obtain a plurality of sound source directions. The voiceprint recognition unit determines whether the sound signal contains a specific object voice in each of the sound source directions. If the sound signal contains the specific object voice in one of the sound source directions, the voice cancellation adjusts a field pattern using a beamforming technique to eliminate the specific object voice.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 26, 2021
    Assignee: ACER INCORPORATED
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng, Kuei-Ting Tai, Chih-Ta Lin
  • Patent number: 11153703
    Abstract: A specific sound source automatic adjusting method and an electronic device using the same are provided. The electronic device includes a first audio recognition unit, a first multi-sound source determination unit, a directivity analysis unit, a directional separation unit, a second audio recognition unit, a second multi-sound source determination unit and an audio adjustment unit. If the number of sound sources of the original sound signal is larger than or equal to 2, the directivity analysis unit performs a directionality analysis procedure on the original sound signal. The directional separation unit separates out at least one specific directional sub-signal from the original sound signal according to the result of directional analysis procedure. If the number of sound sources of the specific directional sub-signal is equal to 1, the audio adjustment unit performs a sound source adjustment procedure.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 19, 2021
    Assignee: ACER INCORPORATED
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Patent number: 11149271
    Abstract: A method of treating a subject suffering from cancer includes administering an effective amount of a RNA molecule to the subject, wherein the RNA molecule is isolated or derived from a plant of the genus Taxus. A method of inhibiting growth or proliferation of cancer cells includes contacting cancer cells with the RNA molecule; and a pharmaceutical composition for treating cancer includes the RNA molecule and a pharmaceutically tolerable excipient. Also a double-stranded RNA molecule and a recombinant vector include the double-stranded RNA molecule.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: October 19, 2021
    Inventors: Zhi-Hong Jiang, Tong-Meng Yan, Kai-Yue Cao
  • Patent number: 11109175
    Abstract: A sound outputting device, a processing device and a sound controlling method thereof are provided. The sound controlling method includes the following steps. An original left sound signal and an original right sound signal are received. The original left sound signal and the original right sound signal are transformed to be a virtual left sound signal and a virtual right sound signal of a virtual sound source. A rotation degree of a user is detected. The virtual left sound signal and the virtual right sound signal are transformed to be an updated left sound signal and an updated right sound signal.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 31, 2021
    Assignee: ACER INCORPORATED
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Publication number: 20210248992
    Abstract: A method for eliminating a specific object voice and an ear-wearing audio device using the same are provided. The ear-wearing audio device includes a plurality of voice receiving units, a voice direction tracking unit, a direction enhancement unit, a window cutting unit, a voiceprint recognition unit, a voice cancellation unit and two speakers. The voice receiving units are arranged in an array to obtain a sound signal. The voice direction tracking unit is configured to track a plurality of sound sources to obtain a plurality of sound source directions. The voiceprint recognition unit determines whether the sound signal contains a specific object voice in each of the sound source directions. If the sound signal contains the specific object voice in one of the sound source directions, the voice cancellation adjusts a field pattern using a beamforming technique to eliminate the specific object voice.
    Type: Application
    Filed: November 20, 2020
    Publication date: August 12, 2021
    Applicant: Acer Incorporated
    Inventors: Po-Jen TU, Jia-Ren CHANG, Kai-Meng TZENG, Kuei-Ting TAI, Chih-Ta LIN
  • Publication number: 20210250682
    Abstract: A method for regulating a sound source of a designated object and an audio processing device using same are provided. The method includes the following steps. An original two-channel signal is obtained. An included angle of the designated object with respect to an ear of a user is detected. A first beam and a second beam are respectively formed in a clockwise direction and a counterclockwise direction according to the included angle to obtain a bidirectional sound signal. A sound rotation process is performed, so that the ear is directed toward sound source of the designated object, and a rotated two-channel sound signal is obtained. A unidirectional sound signal towards the sound source is obtained. A sound signal characteristic of the designated object is obtained according to the bidirectional sound signal and the unidirectional sound signal and then is regulated to synthesize a regulated two-channel signal.
    Type: Application
    Filed: January 19, 2021
    Publication date: August 12, 2021
    Applicant: Acer Incorporated
    Inventors: Po-Jen TU, Jia-Ren CHANG, Kai-Meng TZENG, Chao-Kuang YANG
  • Publication number: 20210204083
    Abstract: A specific sound source automatic adjusting method and an electronic device using the same are provided. The electronic device includes a first audio recognition unit, a first multi-sound source determination unit, a directivity analysis unit, a directional separation unit, a second audio recognition unit, a second multi-sound source determination unit and an audio adjustment unit. If the number of sound sources of the original sound signal is larger than or equal to 2, the directivity analysis unit performs a directionality analysis procedure on the original sound signal. The directional separation unit separates out at least one specific directional sub-signal from the original sound signal according to the result of directional analysis procedure. If the number of sound sources of the specific directional sub-signal is equal to 1, the audio adjustment unit performs a sound source adjustment procedure.
    Type: Application
    Filed: August 31, 2020
    Publication date: July 1, 2021
    Applicant: Acer Incorporated
    Inventors: Po-Jen TU, Jia-Ren CHANG, Kai-Meng TZENG
  • Publication number: 20210191780
    Abstract: The present application discloses a method and an apparatus for processing a development machine operation task, a device and a storage medium, which relates to the field of deep learning of artificial intelligence. The specific implementation solution is: receiving a task creating request initiated by a client; generating, according to the task creating request, the development machine operation task; allocating a target graphics processing unit (GPU) required for executing the development machine operation task for the development machine operation task; and sending a development machine operation task request to a master node in cluster nodes, where the task request is used to request executing the development machine operation task on the target GPU.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Inventors: Baotong LUO, Henghua ZHANG, Zaibin HU, Kaiwen HUANG, Kai MENG, Weijiang SU, Xiaoyu ZHAI, Panpan LI, Zhenguo LI
  • Patent number: 11026022
    Abstract: The disclosure provides an audio signal processing circuit and an audio signal processing method, adapted for processing the input signal of a speaker configured with a rated power. The audio signal processing circuit includes, but not limited to, an audio signal generator and a power adjuster. The audio signal generator provides an audio signal including a high-frequency signal and a middle and low-frequency signal. The power adjuster is electronically coupled to the audio signal generator, and adjusts the power of the high-frequency signal according to an enhanced power larger than the rated power without adjusting the power of the middle and low-frequency signal. The output signal of the power adjuster can be inputted into the speaker. Accordingly, the transmission range for the high-frequency signal can be improved.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: June 1, 2021
    Assignee: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Patent number: 11019439
    Abstract: An adjusting system and an adjusting method for equalization processing are provided. Frequency band energies of sound receiving signals are obtained. The frequency band energies correspond to different frequency bands, respectively. Target gains corresponding to frequency bands are determined according to the frequency band energies. Frequency responses of filtering processing with respect to a plurality of center frequencies are obtained. Equalization gains corresponding to the frequency bands and having the least gain error are determined. The gain error is related to a difference between the amplitude obtained after the equalization gains are reflected on the frequency responses corresponding to the filtering processing and the target gains. The equalization gains are inputted into the filtering processing according to the corresponding frequency bands. Accordingly, the impact of the filtering processing can be reduced.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: May 25, 2021
    Assignee: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Publication number: 20210152934
    Abstract: The disclosure provides an audio signal processing circuit and an audio signal processing method, adapted for processing the input signal of a speaker configured with a rated power. The audio signal processing circuit includes, but not limited to, an audio signal generator and a power adjuster. The audio signal generator provides an audio signal including a high-frequency signal and a middle and low-frequency signal. The power adjuster is electronically coupled to the audio signal generator, and adjusts the power of the high-frequency signal according to an enhanced power larger than the rated power without adjusting the power of the middle and low-frequency signal. The output signal of the power adjuster can be inputted into the speaker. Accordingly, the transmission range for the high-frequency signal can be improved.
    Type: Application
    Filed: January 13, 2020
    Publication date: May 20, 2021
    Applicant: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Patent number: 11012800
    Abstract: A correction system and a correction method of signal measurement are provided. In the method, a transmitted signal and a received signal are divided into a plurality of transmitted signal groups and a plurality of received signal groups according to a time length, respectively. The received signal is related to a signal received after the transmitted signal is transmitted, and the transmitted signal is a periodic signal. A plurality of to-be-evaluated groups are selected from the received signal groups according to a correlation between the transmitted signal groups and the received signal groups. The correlation corresponds to a delay between the transmitted signal and the received signal. The signal energy of the received signal is determined according to the signal energy of the to-be-evaluated groups. Accordingly, the accuracy of signal measurement can be improved.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: May 18, 2021
    Assignee: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Publication number: 20210092539
    Abstract: An adjusting system and an adjusting method for equalization processing are provided. Frequency band energies of sound receiving signals are obtained. The frequency band energies correspond to different frequency bands, respectively. Target gains corresponding to frequency bands are determined according to the frequency band energies. Frequency responses of filtering processing with respect to a plurality of center frequencies are obtained. Equalization gains corresponding to the frequency bands and having the least gain error are determined. The gain error is related to a difference between the amplitude obtained after the equalization gains are reflected on the frequency responses corresponding to the filtering processing and the target gains. The equalization gains are inputted into the filtering processing according to the corresponding frequency bands. Accordingly, the impact of the filtering processing can be reduced.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 25, 2021
    Applicant: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Publication number: 20210084428
    Abstract: A correction system and a correction method of signal measurement are provided. In the method, a transmitted signal and a received signal are divided into a plurality of transmitted signal groups and a plurality of received signal groups according to a time length, respectively. The received signal is related to a signal received after the transmitted signal is transmitted, and the transmitted signal is a periodic signal. A plurality of to-be-evaluated groups are selected from the received signal groups according to a correlation between the transmitted signal groups and the received signal groups. The correlation corresponds to a delay between the transmitted signal and the received signal. The signal energy of the received signal is determined according to the signal energy of the to-be-evaluated groups. Accordingly, the accuracy of signal measurement can be improved.
    Type: Application
    Filed: January 13, 2020
    Publication date: March 18, 2021
    Applicant: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Patent number: 10924879
    Abstract: A sound effect controlling method and a sound outputting device with dynamic gain adjustment are disclosed. The sound effect controlling method includes the following steps. An original left sound signal and an original right sound signal are transformed to a virtual center sound signal, a virtual left sound signal, a virtual left surrounding sound signal, a virtual right surrounding sound signal and a virtual right sound signal according to a center gain, a left gain, a left surrounding gain, a right surrounding gain and a right gain, which are calculated according to a rotation angle and a dual sound relationship. An updated left sound signal and an updated right sound signal are obtained according to the virtual center sound signal, the virtual left sound signal, the virtual left surrounding sound signal, the virtual right surrounding sound signal and the virtual right sound signal.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: February 16, 2021
    Assignee: ACER INCORPORATED
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Patent number: 10904691
    Abstract: A speaker adjustment method for adjusting a plurality of speakers is provided. The speaker adjustment method includes the following steps: respectively obtaining a plurality of frequency responses of the plurality of speakers by using one microphone; obtaining distance information between the microphone and the plurality of speakers; and adjusting outputs of the plurality of speakers according to the plurality of frequency responses and the distance information. In addition, an electronic device using the speaker adjustment method is also provided.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: January 26, 2021
    Assignee: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Publication number: 20200404418
    Abstract: A Finite Impulse Response (FIR) filter is configured to minimize delay and maximize passband power by adjusting the filter coefficients applied to the sampled values. The FIR filter obtains an input signal and samples the input signal to generate a set of sampled input values. The FIR filter generates a set of filter coefficients, with each filter coefficient based on a corresponding sampled input value in the set of sample input values. The FIR filter selects a subset of sampled input values that have been most recently sampled from the input signal, and selects a subset of filter coefficients corresponding to sampled input values that are not the most recently sampled. The subset of sampled input values is combined with the subset of filter coefficients to generate an output value for the FIR filter.
    Type: Application
    Filed: October 1, 2019
    Publication date: December 24, 2020
    Inventors: Po-Jen TU, Jia-Ren CHANG, Kai-Meng TZENG
  • Publication number: 20200359153
    Abstract: A speaker adjustment method for adjusting a plurality of speakers is provided. The speaker adjustment method includes the following steps: respectively obtaining a plurality of frequency responses of the plurality of speakers by using one microphone; obtaining distance information between the microphone and the plurality of speakers; and adjusting outputs of the plurality of speakers according to the plurality of frequency responses and the distance information. In addition, an electronic device using the speaker adjustment method is also provided.
    Type: Application
    Filed: November 13, 2019
    Publication date: November 12, 2020
    Applicant: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng