Patents by Inventor Kihyun Choo

Kihyun Choo 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: 20220262377
    Abstract: The disclosure relates to an electronic device and a control method thereof. The electronic device includes a memory, and a processor configured to: obtain first feature data for estimating a waveform by inputting acoustic data of a first quality to a first encoder model; and obtain waveform data of a second quality that is a higher quality than the first quality by inputting the first feature data to a decoder model to.
    Type: Application
    Filed: April 4, 2022
    Publication date: August 18, 2022
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: Sangjun PARK, Kihyun CHOO, Taehwa KANG, Hosang SUNG, Jonghoon JEONG
  • Publication number: 20220246129
    Abstract: A controlling method of a wearable electronic apparatus includes: receiving, by an IMU sensor, a bone conduction signal corresponding to vibration in the user's face, while the wearable electronic apparatus is operated in an ANC mode; identifying a presence or an absence of the user's voice based on the bone conduction signal, based on the identifying the presence of the user's voice, controlling an operation mode of the wearable electronic apparatus to be a different operation mode from the ANC mode; while the wearable electronic apparatus is operated in the different operation mode, identifying presence or absence of the user's voice based on the bone conduction signal, and based on the absence of the user's voice being identified for a predetermined time while the wearable electronic apparatus is operated in the different operation mode, controlling the different operation mode to return to the ANC mode.
    Type: Application
    Filed: January 18, 2022
    Publication date: August 4, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hosang SUNG, Lei YANG, Jonguk YOO, Jonghoon JEONG, Kihyun CHOO
  • Patent number: 11404045
    Abstract: A speech synthesis method performed by an electronic apparatus to synthesize speech from text and includes: obtaining text input to the electronic apparatus; obtaining a text representation by encoding the text using a text encoder of the electronic apparatus; obtaining an audio representation of a first audio frame set from an audio encoder of the electronic apparatus, based on the text representation; obtaining an audio representation of a second audio frame set based on the text representation and the audio representation of the first audio frame set; obtaining an audio feature of the second audio frame set by decoding the audio representation of the second audio frame set; and synthesizing speech based on an audio feature of the first audio frame set and the audio feature of the second audio frame set.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seungdo Choi, Kyoungbo Min, Sangjun Park, Kihyun Choo
  • Publication number: 20220180872
    Abstract: An electronic apparatus, based on a text sentence being input, obtains prosody information of the text sentence, segments the text sentence into a plurality of sentence elements, obtains a speech in which prosody information is reflected to each of the plurality of sentence elements in parallel by inputting the plurality of sentence elements and the prosody information of the text sentence to a text to speech (TTS) module, and merges the speech for the plurality of sentence elements that are obtained in parallel to output speech for the text sentence.
    Type: Application
    Filed: February 24, 2022
    Publication date: June 9, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jonghoon JEONG, Hosang SUNG, Doohwa HONG, Kyoungbo MIN, Eunmi OH, Kihyun CHOO
  • Patent number: 11335325
    Abstract: An electronic device and a controlling method of the electronic device are provided. The electronic device acquires text to respond on a received user's speech, acquires a plurality of pieces of parameter information for determining a style of an output speech corresponding to the text based on information on a type of a plurality of text-to-speech (TTS) databases and the received user's speech, identifies a TTS database corresponding to the plurality of pieces of parameter information among the plurality of TTS databases, identifies a weight set corresponding to the plurality of pieces of parameter information among a plurality of weight sets acquired through a trained artificial intelligence model, adjusts information on the output speech stored in the TTS database based on the weight set, synthesizes the output speech based on the adjusted information on the output speech, and outputs the output speech corresponding to the text.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: May 17, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hosang Sung, Seonho Hwang, Doohwa Hong, Eunmi Oh, Kyoungbo Min, Jonghoon Jeong, Kihyun Choo
  • Publication number: 20220148562
    Abstract: An electronic apparatus and a controlling method thereof are provided. The electronic apparatus includes a microphone; a memory configured to store a text-to-speech (TTS) model and a plurality of evaluation texts; and a processor configured to: obtain a first reference vector of a user speech spoken by a user based the user speech being received through the microphone, generate a plurality of candidate reference vectors based on the first reference vector, obtain a plurality of synthesized sounds by inputting the plurality of candidate reference vectors and the plurality of evaluation texts to the TTS model, identify at least one synthesized sound of the plurality of synthesized sounds based on a similarity between characteristics of the plurality of synthesized sounds and the user speech, and store a second reference vector of the at least one synthesized sound in the memory as a reference vector corresponding to the user for the TTS model.
    Type: Application
    Filed: December 17, 2021
    Publication date: May 12, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangjun PARK, Kyoungbo Min, Kihyun Choo, Seungdo Choi
  • Patent number: 11289083
    Abstract: An electronic apparatus, based on a text sentence being input, obtains prosody information of the text sentence, segments the text sentence into a plurality of sentence elements, obtains a speech in which prosody information is reflected to each of the plurality of sentence elements in parallel by inputting the plurality of sentence elements and the prosody information of the text sentence to a text to speech (TTS) module, and merges the speech for the plurality of sentence elements that are obtained in parallel to output speech for the text sentence.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: March 29, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jonghoon Jeong, Hosang Sung, Doohwa Hong, Kyoungbo Min, Eunmi Oh, Kihyun Choo
  • Publication number: 20210350788
    Abstract: A method, performed by an electronic device, of generating a speech signal corresponding to at least one text is provided. The method includes obtaining feature information with respect to a first sample included in the speech signal, based on the at least one text, obtaining condition information related to a condition under which a bunching operation, in which one or more sample values included in the speech signal are obtained, is performed, based on the feature information, configuring one or more bunching blocks for performing the bunching operation, based on the condition information, obtaining the one or more sample values based on the feature information with respect to the first sample by using the one or more bunching blocks, and generating the speech signal based on the obtained one or more sample values.
    Type: Application
    Filed: March 11, 2021
    Publication date: November 11, 2021
    Inventors: Kihyun CHOO, Sangjun PARK, Nicholas LANE, Ravichander VIPPERLA, Sourav BHATTACHARYA, Syed Samin ISHTIAQ, Taehwa KANG, Jonghoon JEONG
  • Publication number: 20210225358
    Abstract: A system for synthesising expressive speech includes: an interface configured to receive an input text for conversion to speech; a memory; and at least one processor coupled to the memory. The processor is configured to generate, using an expressivity characterisation module, a plurality of expression vectors, wherein each expression vector is a representation of prosodic information in a reference audio style file, and synthesise expressive speech from the input text, using an expressive acoustic model comprising a deep convolutional neural network that is conditioned by at least one of the plurality of expression vectors.
    Type: Application
    Filed: September 29, 2020
    Publication date: July 22, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jesus MONGE ALVAREZ, Holly Francois, Hosang Sung, Seungdo Choi, Kihyun Choo, Sangjun Park
  • Publication number: 20210065678
    Abstract: A speech synthesis method performed by an electronic apparatus to synthesize speech from text and includes: obtaining text input to the electronic apparatus; obtaining a text representation by encoding the text using a text encoder of the electronic apparatus; obtaining an audio representation of a first audio frame set from an audio encoder of the electronic apparatus, based on the text representation; obtaining an audio representation of a second audio frame set based on the text representation and the audio representation of the first audio frame set; obtaining an audio feature of the second audio frame set by decoding the audio representation of the second audio frame set; and synthesizing speech based on an audio feature of the first audio frame set and the audio feature of the second audio frame set.
    Type: Application
    Filed: August 31, 2020
    Publication date: March 4, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seungdo CHOI, Kyoungbo MIN, Sangjun PARK, Kihyun CHOO
  • Publication number: 20200279551
    Abstract: An electronic apparatus which acquires input data to be input into a TTS module for outputting a voice through the TTS module, acquires a voice signal corresponding to the input data through the TTS module, detects an error in the acquired voice signal based on the input data, corrects the input data based on the detection result, and acquires a corrected voice signal corresponding to the corrected input data through the TTS module.
    Type: Application
    Filed: February 12, 2020
    Publication date: September 3, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hosang Sung, Kyoungbo Min, Seonho Hwang, Doohwa Hong, Eunmi Oh, Jonghoon Jeong, Kihyun Choo
  • Publication number: 20200234693
    Abstract: An electronic device and a controlling method of the electronic device are provided. The electronic device acquires text to respond on a received user's speech, acquires a plurality of pieces of parameter information for determining a style of an output speech corresponding to the text based on information on a type of a plurality of text-to-speech (TTS) databases and the received user's speech, identifies a TTS database corresponding to the plurality of pieces of parameter information among the plurality of TTS databases, identifies a weight set corresponding to the plurality of pieces of parameter information among a plurality of weight sets acquired through a trained artificial intelligence model, adjusts information on the output speech stored in the TTS database based on the weight set, synthesizes the output speech based on the adjusted information on the output speech, and outputs the output speech corresponding to the text.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 23, 2020
    Inventors: Hosang SUNG, Seonho HWANG, Doohwa HONG, Eunmi OH, Kyoungbo MIN, Jonghoon JEONG, Kihyun CHOO
  • Publication number: 20200152194
    Abstract: An electronic apparatus, based on a text sentence being input, obtains prosody information of the text sentence, segments the text sentence into a plurality of sentence elements, obtains a speech in which prosody information is reflected to each of the plurality of sentence elements in parallel by inputting the plurality of sentence elements and the prosody information of the text sentence to a text to speech (TTS) module, and merges the speech for the plurality of sentence elements that are obtained in parallel to output speech for the text sentence.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 14, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jonghoon JEONG, Hosang SUNG, Doohwa HONG, Kyoungbo MIN, Eunmi OH, Kihyun CHOO
  • Patent number: 9934789
    Abstract: A method, medium, and apparatus with scalable channel decoding. The method includes recognizing the configuration of channels or speakers, calculating the respective number of same path decoding levels for each multi-channel signal using the recognized configuration of the channels or speakers, and performing decoding and up-mixing according to the calculated respective number of decoding levels.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: April 3, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
  • Patent number: 9848180
    Abstract: Surround audio decoding for selectively generating an audio signal from a multi-channel signal. In the surround audio decoding, a down-mixed signal, e.g., as down-mixed by an encoding terminal, is selectively up-mixed to a stereo signal or a multi-channel signal, by generating spatial information for generating the stereo signal, using spatial information for up-mixing the down-mixed signal to the multi-channel signal.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
  • Patent number: 9706325
    Abstract: A method, medium, and system decoding and/or encoding multiple channels. Accordingly, down-mixed multiple channels can be decoded/up-mixed to a left channel and a right channel during a first stage, thereby enabling a high quality sound output even in scalable channel decoding.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
  • Patent number: 9479871
    Abstract: A method, medium, and system generating a 3-dimensional (3D) stereo signal in a decoder by using a surround data stream. According to such a method, medium, and system, a head related transfer function (HRTF) is applied in a quadrature mirror filter (QMF) domain, thereby generating a 3D stereo signal by using a surround data stream.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: October 25, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
  • Publication number: 20160302021
    Abstract: A method, medium, and system decoding and/or encoding multiple channels. Accordingly, down-mixed multiple channels can be decoded/up-mixed to a left channel and a right channel during a first stage, thereby enabling a high quality sound output even in scalable channel decoding.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 13, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghoe KIM, Eunmi OH, Kihyun CHOO, Miao LEI
  • Patent number: 9369164
    Abstract: A method, medium, and system decoding and/or encoding multiple channels. Accordingly, down-mixed multiple channels can be decoded/up-mixed to a left channel and a right channel during a first stage, thereby enabling a high quality sound output even in scalable channel decoding.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
  • Publication number: 20150312548
    Abstract: Surround audio decoding for selectively generating an audio signal from a multi-channel signal. In the surround audio decoding, a down-mixed signal, e.g., as down-mixed by an encoding terminal, is selectively up-mixed to a stereo signal or a multi-channel signal, by generating spatial information for generating the stereo signal, using spatial information for up-mixing the down-mixed signal to the multi-channel signal.
    Type: Application
    Filed: July 8, 2015
    Publication date: October 29, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghoe KIM, Eunmi OH, Kihyun CHOO, Miao LEI