Patents by Inventor Lifeng Zhao

Lifeng Zhao 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: 10964317
    Abstract: The present disclosure provides a voice wakeup method, apparatus and system, a cloud server and a readable medium. The method comprises: receiving a first request input by the user in a voice manner after a smart device enters a voice recognition phase; judging whether the first request after semantic parsing is consistent with pre-stored wakeup words; determining that the received first request is used to re-wake up the smart device if the first request is consistent with the pre-stored wakeup words. According to the above technical solutions, after the smart device enters the voice recognition phase, if the received first request is the wakeup words, the smart device does not perform service satisfaction processing for the first request. Capability of recognizing that the first request is re-wakeup does not cause a command recognition error and thereby can satisfy the user's expectation.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: March 30, 2021
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Xiantang Chang, Lifeng Zhao, Rongjie Chen
  • Patent number: 10959122
    Abstract: A method of wirelessly transmitting data by a first electronic apparatus configured to initially perform communication using a first wireless communication manner, includes: the first electronic apparatus determining whether performing data transmission through a second wireless communication manner is required; the first electronic apparatus sending a data transmission request message through the first wireless communication manner when it is determined that performing data transmission through the second wireless communication manner is required; and the first electronic apparatus performing data transmission with a second electronic apparatus through the second wireless communication manner after a data transmission acknowledgement message is received from the second electronic apparatus through the first wireless communication manner.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yajun Zhi, Jin Zhang, Lifeng Zhao, Fei Wang
  • Patent number: 10908870
    Abstract: The present disclosure provides an audio playing method and device. The method may include the following. When a loading speed of a present audio file containing target audio content is changed during the present audio file is played, a target definition for playing the target audio content is determined. It is determined whether to report an audio file acquisition request to a server based on a preset strategy. When it is determined to report the audio file acquisition request to the server, the audio file acquisition request is reported to the server. The audio file acquisition request may include the target definition and an identifier of a target audio file containing the target audio content. An audio playing instruction sent by the server is acquired. The audio playing instruction may include the target audio file corresponding to the identifier and the target definition. The target audio file is played.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: February 2, 2021
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Xiantang Chang, Lifeng Zhao, Shiwei Yan
  • Publication number: 20210012243
    Abstract: The present disclosure relates to a system and method for providing textile information and visualizing the same. The method for determining a damage level of a textile includes: receiving an image of at least a part of the textile; receiving information about a fabric type of the at least a part of the textile; analyzing the image by using a machine learning method so as to identify a fabric attribute of the at least a part of the textile; determining a severity value associated with the identified fabric attribute by using the machine learning method according to the received image, the identified fabric attribute and the fabric type; and determining the damage level of the textile based on the determined severity value.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Inventors: Hongling CHEN, Haiyan SONG, Yi WEI, Lesheng ZHANG, Xiaozhen ZHANG, Lifeng ZHAO
  • Patent number: 10803861
    Abstract: Embodiments of the present disclosure disclose a method and apparatus for identifying information. One embodiment of the method includes: collecting to-be-processed audio in real-time; performing voice recognition on the to-be-processed audio; performing data-processing on the to-be-processed audio, when the audio is recognized as a wake-up word, the wake-up word is used for instructing performing data-processing on the to-be-processed audio. The embodiment can identify keywords from the to-be-processed audio obtained in real-time and then perform data-processing on the to-be-processed audio, which improves completeness in obtaining the to-be-processed audio and accuracy in performing data-processing on the to-be-processed audio.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: October 13, 2020
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Xiaojian Chen, Lifeng Zhao, Jun Li, Yushu Cao
  • Patent number: 10783884
    Abstract: The present disclosure provides an electronic device-awakening method and apparatus, a device and a computer-readable storage medium. In embodiments of the present disclosure, the user's speech wakeup instruction which is used to awaken the electronic device is obtained, and then an audio data file is selected from at least two audio data files according to the speech wakeup instruction, as a wakeup answer file of the electronic device, so that the wakeup answer file of the electronic device can be played. Since there are more than one selectable audio data files, many types of prompt tones can be provided, thereby achieving the purpose of providing many types of wakeup prompts.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: September 22, 2020
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Rongjie Chen, Lifeng Zhao, Xiantang Chang, Shiwei Yan
  • Publication number: 20200227051
    Abstract: The embodiments of the present disclosure provide a service control method, a service control apparatus and a device, the method including: determining an application service in operating state in an electronic device; and transmitting audio data captured by a microphone to the application service and a control service, where the application service is configured to perform multimedia information interaction according to the audio data, and the control service is configured to control the electronic device according to the audio data, thereby improving flexibility in controlling services in the electronic device.
    Type: Application
    Filed: October 30, 2019
    Publication date: July 16, 2020
    Inventors: Liang HE, Aihui AN, Yu NIU, Lifeng ZHAO, Xiangdong XUE, Ji ZHOU
  • Publication number: 20200227069
    Abstract: A method, device and apparatus for recognizing a voice signal, and a storage medium are provided. The method includes: collecting a voice signal; extracting the voiceprint feature of the voice signal; comparing the voiceprint feature with a pre-stored reference voiceprint feature; and recognizing a content of the voice signal with a voice recognition model, in response to a consistence of the voiceprint feature with the pre-stored reference voiceprint feature. Embodiments of the present application can improve the accuracy of recognizing voice signals.
    Type: Application
    Filed: October 15, 2019
    Publication date: July 16, 2020
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Yong Liu, Ji Zhou, Xiangdong Xue, Peng Wang, Lifeng Zhao
  • Publication number: 20200227049
    Abstract: A method, apparatus, and device for waking up a voice interaction device, and a storage medium are provided. The method includes: acquiring a voice signal; extracting a first voiceprint characteristic of the voice signal; comparing the first voiceprint characteristic with a pre-stored reference voiceprint characteristic to obtain a similarity between the first voiceprint characteristic and the pre-stored reference voiceprint characteristic; comparing the similarity with a preset threshold; and determining that the first voiceprint characteristic is consistent with the reference voiceprint characteristic in response to the similarity larger than the preset threshold; and determining a wake-up word included in content of the voice signal by using a wake-up word recognition model and waking up the voice interaction device. In the embodiments, the ratio for falsely waking up a voice interactive device is reduced.
    Type: Application
    Filed: October 15, 2019
    Publication date: July 16, 2020
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Yong Liu, Ji Zhou, Xiangdong Xue, Peng Wang, Lifeng Zhao
  • Publication number: 20200219503
    Abstract: A method and apparatus for filtering out a voice instruction are provided. The method includes: receiving a conversation voice in a conversation process; determining whether control instruction information is included in the conversation voice; and filtering out the conversation voice with the control instruction information and prohibiting from sending the conversation voice to the opposite equipment of the conversation process. The apparatus includes a receiving module configured to receive a conversation voice in a conversation process, a determination module configured to determine whether control instruction information is included in the conversation voice, and a conversation module configured to filter out the conversation voice and prohibit from sending the conversation voice to an opposite equipment of the conversation process, in response to a determination of control instruction information in the conversation voice.
    Type: Application
    Filed: November 27, 2019
    Publication date: July 9, 2020
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Liang HE, Aihui AN, Yu NIU, Lifeng ZHAO, Xiangdong XUE, Ji ZHOU
  • Publication number: 20190383810
    Abstract: Provided are a method and device for detecting an excessive antigen concentration, and a storage medium. The method includes: subjecting a sample containing antigens to an immune reaction, obtaining a photovoltage value of the sample after subjected to the immune reaction; and determining whether an antigen concentration of the sample is excessive according to the photovoltage value of the sample.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 19, 2019
    Inventors: Quan Gan, Lifeng Zhao, Yawen Han
  • Publication number: 20190345060
    Abstract: Drill cuttings, initially cleaned to remove a majority of drilling fluids therefrom, but which have residual organic species, including hydrocarbons, therein are used in clean technologies to make a wide variety of ceramic and concrete products, such as tiles, slabs, blocks, bricks, pavers, decorative edgings, planters, modular barriers, embankments, medians, dividers, precast products and the like for a variety of commercial sectors. In the case of the concrete products, the organic species in the drill cuttings, including hydrocarbons, are first minimized or degraded in the drill cuttings using an oxidative process, such as photocatalytic oxidation, use of an oxidant or combinations thereof, prior to mixing the drill cuttings with cement and water, to form various concrete products. The products produced have acceptable compressive strengths and minimize or eliminate any leaching of the drill cutting contaminants therefrom.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 14, 2019
    Inventors: Suilan CHEN, Lifeng ZHAO, Vitselle MARTEZ
  • Publication number: 20190318736
    Abstract: The embodiment of the disclosure provides a method for voice controlling, a terminal device, a cloud server and a system. The method includes: receiving voice information that the user performs voice controlling on a terminal device; transmitting voice information to the cloud server, so that the cloud server determines, according to the voice information, a voice control and a control instruction that match the voice information in the current interface, and generates a corresponding voice control instruction; receiving the voice control instruction transmitted by the cloud server; and controlling, according to the voice control instruction, a corresponding voice control of the terminal device to perform an operation. The method of the embodiments of the present disclosure achieves controlling over the controls in the interface through the voice, which deepens the controlling degree of the voice over the terminal device, and improves the user experience.
    Type: Application
    Filed: December 28, 2018
    Publication date: October 17, 2019
    Inventors: LICHAO XU, YUSHU CAO, LISHANG XIAO, LIFENG ZHAO, XIANGDONG XUE, JI ZHOU
  • Publication number: 20190287523
    Abstract: Embodiments of the present disclosure disclose a far-field voice control device and a far-field voice control system. According to an embodiment, the far-field voice control device includes: a far-field voice pickup device and a voice analysis device. The far-field voice pickup device receives a voice sent by a user, and sends the voice to the voice analysis device. The voice analysis device analyzes the voice to determine whether the voice includes a preset wake-up word, and sends the voice to a cloud server communicating with the far-field voice control device if the voice includes the preset wake-up word. That is, a remote user may interact with the far-field voice control system supporting the far-field voice pickup function through voice, thereby achieving the corresponding control function.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 19, 2019
    Inventors: Lifeng Zhao, Dengfeng Wu, Rentai Xing, Jie Chen
  • Publication number: 20190287521
    Abstract: Embodiments of the present disclosure disclose a terminal holder and a far-field voice interaction system. A specific implementation of the terminal holder includes: a far-field voice pickup device and a voice analysis device. The far-field voice pickup device receives voice sent by a user, and sends the voice to the voice analysis device. The voice analysis device analyzes the voice, determines whether the voice contains a preset wake-up word, and sends the voice to a terminal in communication connection with the terminal holder when the preset wake-up word is contained. This embodiment receives voice sent by a user through the terminal holder supporting a far-field voice pickup function, thereby facilitating the far-field voice control over the terminal.
    Type: Application
    Filed: November 29, 2018
    Publication date: September 19, 2019
    Inventors: Hong Su, Peng Li, Lifeng Zhao
  • Publication number: 20190251963
    Abstract: A voice awakening method and device are provided. According to an embodiment, the method includes: receiving voice information of a user; obtaining an awakening confidence level corresponding to the voice information based on the voice information; determining, on the basis of the awakening confidence level, whether the voice information is suspected wake-up voice information; and performing, in response to determining the voice information being the suspected wake-up voice information, a secondary determination on the voice information to obtain a secondary determination result, and determining whether to perform a wake-up operation on the basis of the secondary determination result. The embodiment implements a secondary verification on the voice information, thereby reducing the probability that the smart device is mistakenly awakened.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 15, 2019
    Inventors: Jun Li, Rui Yang, Lifeng Zhao, Xiaojian Chen, Yushu Cao
  • Publication number: 20190147860
    Abstract: Embodiments of the present disclosure disclose a method and apparatus for identifying information. One embodiment of the method includes: collecting to-be-processed audio in real-time; performing voice recognition on the to-be-processed audio; performing data-processing on the to-be-processed audio, when the audio is recognized as a wake-up word, the wake-up word is used for instructing performing data-processing on the to-be-processed audio. The embodiment can identify keywords from the to-be-processed audio obtained in real-time and then perform data-processing on the to-be-processed audio, which improves completeness in obtaining the to-be-processed audio and accuracy in performing data-processing on the to-be-processed audio.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 16, 2019
    Inventors: Xiaojian CHEN, Lifeng ZHAO, Jun LI, Yushu CAO
  • Publication number: 20190132105
    Abstract: An indirect data transmission method may include: calculating an estimated arrival time of a next poll data request of a terminal device according to a receipt time of a poll data request, after the poll data request is received from the terminal device; transmitting data for the terminal device to a cache of a Media Access Control (MAC) layer module at a time point which is a predetermined time length ahead of the estimated arrival time responsive to a determination that there is the data for the terminal device in a network layer module; and transmitting, to the terminal device, an acknowledgement packet indicating that there is the data to be transmitted in the cache of the MAC layer module and the data for the terminal device, responsive to receiving the next poll data request.
    Type: Application
    Filed: October 17, 2018
    Publication date: May 2, 2019
    Inventors: Fei WANG, Jin ZHANG, Lifeng ZHAO, Yajun ZHI, Zhijun LIU
  • Publication number: 20190132763
    Abstract: A method of wirelessly transmitting data by a first electronic apparatus configured to initially perform communication using a first wireless communication manner, includes: the first electronic apparatus determining whether performing data transmission through a second wireless communication manner is required; the first electronic apparatus sending a data transmission request message through the first wireless communication manner when it is determined that performing data transmission through the second wireless communication manner is required; and the first electronic apparatus performing data transmission with a second electronic apparatus through the second wireless communication manner after a data transmission acknowledgement message is received from the second electronic apparatus through the first wireless communication manner.
    Type: Application
    Filed: October 24, 2018
    Publication date: May 2, 2019
    Inventors: YAJUN ZHI, Jin Zhang, Lifeng Zhao, Fei Wang
  • Publication number: 20190013020
    Abstract: The present disclosure provides an electronic device-awakening method and apparatus, a device and a computer-readable storage medium. In embodiments of the present disclosure, the user's speech wakeup instruction which is used to awaken the electronic device is obtained, and then an audio data file is selected from at least two audio data files according to the speech wakeup instruction, as a wakeup answer file of the electronic device, so that the wakeup answer file of the electronic device can be played. Since there are more than one selectable audio data files, many types of prompt tones can be provided, thereby achieving the purpose of providing many types of wakeup prompts.
    Type: Application
    Filed: December 28, 2017
    Publication date: January 10, 2019
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd
    Inventors: Rongjie Chen, Lifeng Zhao, Xiantang Chang, Shiwei Yan