Patents by Inventor Miao Lei
Miao Lei 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).
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Patent number: 11368608Abstract: A compressed sensing based object imaging system and an imaging method thereof. The object imaging system comprises a light source generation unit (11), a filter unit (12), an image generation unit (13), an image acquisition unit (14), and an image reconstruction unit (15). The light source generation unit (11) generates experimental laser; the filter unit (12) filters high frequency scattered light and forms parallel light; the image generation unit (13) generates an experimental image in which an object image (16) and a specific measurement matrix (17) are superimposed; the image acquisition unit (14) performs compression sampling on the generated experimental image; and the image reconstruction unit (15) reconstructs sampling data to restore the object image (16).Type: GrantFiled: January 18, 2018Date of Patent: June 21, 2022Assignee: SOUTH CHINA NORMAL UNIVERSITYInventors: Jun Li, Miao Lei, Xiaofang Dai, Shangyuan Wang, Ting Zhong, Chuangxue Liang, Chen Wang, Ping Xie, Ruiqiang Wang
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Publication number: 20210144278Abstract: A compressed sensing based object imaging system and an imaging method thereof. The object imaging system comprises a light source generation unit (11), a filter unit (12), an image generation unit (13), an image acquisition unit (14), and an image reconstruction unit (15). The light source generation unit (11) generates experimental laser; the filter unit (12) filters high frequency scattered light and forms parallel light; the image generation unit (13) generates an experimental image in which an object image (16) and a specific measurement matrix (17) are superimposed; the image acquisition unit (14) performs compression sampling on the generated experimental image; and the image reconstruction unit (15) reconstructs sampling data to restore the object image (16).Type: ApplicationFiled: January 18, 2018Publication date: May 13, 2021Applicant: SOUTH CHINA NORMAL UNIVERSITYInventors: Jun LI, Miao LEI, Xiaofang DAI, Shangyuan WANG, Ting ZHONG, Chuangxue LIANG, Chen WANG, Ping XIE, Ruiqiang WANG
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Patent number: 9934789Abstract: 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: GrantFiled: January 11, 2007Date of Patent: April 3, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
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Patent number: 9848180Abstract: 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: GrantFiled: July 8, 2015Date of Patent: December 19, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
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Patent number: 9706325Abstract: 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: GrantFiled: June 13, 2016Date of Patent: July 11, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
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Patent number: 9667270Abstract: An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.Type: GrantFiled: July 21, 2015Date of Patent: May 30, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Miao Lei, Eunmi Oh
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Patent number: 9552820Abstract: An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.Type: GrantFiled: December 11, 2015Date of Patent: January 24, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Sangchul Ko, Shihwa Lee, Eunmi Oh, Miao Lei
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Patent number: 9479871Abstract: 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: GrantFiled: December 19, 2013Date of Patent: October 25, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
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Publication number: 20160302021Abstract: 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: ApplicationFiled: June 13, 2016Publication date: October 13, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe KIM, Eunmi OH, Kihyun CHOO, Miao LEI
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Patent number: 9369164Abstract: 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: GrantFiled: January 10, 2007Date of Patent: June 14, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
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Publication number: 20160099002Abstract: An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.Type: ApplicationFiled: December 11, 2015Publication date: April 7, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe KIM, Sangchul KO, Shihwa LEE, Eunmi OH, Miao LEI
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Patent number: 9232334Abstract: An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.Type: GrantFiled: September 1, 2014Date of Patent: January 5, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Sangchul Ko, Shihwa Lee, Eunmi Oh, Miao Lei
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Publication number: 20150325244Abstract: An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.Type: ApplicationFiled: July 21, 2015Publication date: November 12, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe KIM, Miao LEI, Eunmi OH
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Publication number: 20150312548Abstract: 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: ApplicationFiled: July 8, 2015Publication date: October 29, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe KIM, Eunmi OH, Kihyun CHOO, Miao LEI
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Patent number: 9100039Abstract: An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.Type: GrantFiled: August 30, 2012Date of Patent: August 4, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Miao Lei, Eunmi Oh
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Patent number: 9087511Abstract: 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: GrantFiled: February 20, 2007Date of Patent: July 21, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe Kim, Eunmi Oh, Kihyun Choo, Miao Lei
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Publication number: 20150131799Abstract: An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.Type: ApplicationFiled: September 1, 2014Publication date: May 14, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Junghoe KIM, Sangchul KO, Shihwa LEE, Eunmi OH, Miao LEI
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Patent number: 8824690Abstract: An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.Type: GrantFiled: May 23, 2011Date of Patent: September 2, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Junghoe Kim, Sangchul Ko, Shihwa Lee, Eunmi Oh, Miao Lei
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Patent number: 8766605Abstract: A bridgeless PFC (power factor correction) converter with improved efficiency is disclosed. The bridgeless PFC converter comprises: a first input terminal and a second input terminal configured to receive an input AC signal; an output terminal; an inductor set comprising N inductors, wherein a first terminal of each inductor is coupled to the first input terminal; and an output stage comprising (N+1) switching circuits coupled between the output terminal and a ground node.Type: GrantFiled: December 2, 2011Date of Patent: July 1, 2014Assignee: Chengdu Monolithic Power Systems Co., Ltd.Inventors: Yuancheng Ren, Bo Zhang, Miao Lei, Junming Zhang, James C Moyer, Eric Yang
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Patent number: 8718804Abstract: In an embodiment, a method of receiving a digital audio signal, using a processor, includes correcting the digital audio signal from lost data. Correcting includes copying frequency domain coefficients of the digital audio signal from a previous frame, adaptively adding random noise coefficients to the copied frequency domain coefficients, and scaling the random noise coefficients and the copied frequency domain coefficients to form recovered frequency domain coefficients. Scaling is controlled with a parameter representing a periodicity or harmonicity of the digital audio signal. A corrected audio signal is produced from the recovered frequency domain coefficients.Type: GrantFiled: May 4, 2010Date of Patent: May 6, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Yang Gao, Herve Taddei, Miao Lei