专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20220343932A1 PSD OPTIMIZATION APPARATUS, PSD OPTIMIZATION METHOD, AND PROGRAM 有权
公开(公告)号：US20220343932A1
公开(公告)日：2022-10-27
申请号：US17633191
申请日：2019-08-08
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hironobu CHIBA , Kenta NIWA , Noboru HARADA
IPC分类号： G10L21/0232 , G06F17/11
摘要： Sound source enhancement technology is provided that is capable of improving sound source enhancement capabilities in accordance with settings of usage and applications. A PSD optimization device includes a PSD updating unit that takes a target sound PSD input value {circumflex over ( )}φS(ω, τ), an interference noise PSD input value {circumflex over ( )}φIN(ω, τ), and a background noise PSD input value {circumflex over ( )}φBN(ω, τ) as input, and generates a target sound PSD output value φS(ω, τ), an interference noise PSD output value {circumflex over ( )}φIN(ω, τ), and a background noise PSD output value {circumflex over ( )}φBN(ω, τ), by solving an optimization problem for a cost function relating to a variable uS representing a target sound PSD, a variable uIN representing an interference noise PSD, and a variable uBN representing a background noise PSD. The optimization problem for the cost function is defined using at least one of a constraint relating to a frequency structure of a sound source or a convex cost term relating to the frequency structure of the sound source, a constraint relating to a temporal structure of the sound source or a convex cost term relating to the temporal structure of the sound source, and a constraint relating to a spatial structure of the sound source or a convex cost term relating to the spatial structure of the sound source.

22. 发明申请

US20220343907A1 VOICE RECOGNITION DEVICE 有权
公开(公告)号：US20220343907A1
公开(公告)日：2022-10-27
申请号：US17237462
申请日：2021-04-22
申请人： AUTOMOTIVE RESEARCH & TESTING CENTER
发明人： YU-XIANG WANG , CHIH-NENG LIANG
IPC分类号： G10L15/20 , G10L25/84 , G10L21/0232 , G10L15/22
摘要： A voice recognition device includes at least one position retrieving device, a directional voice receiving device, a noise suppressor, and a voice recognition processor. The position retrieving device is sequentially coupled to the directional voice receiving device, the noise suppressor, and the voice recognition processor. The position retrieving device retrieves the physical voice position of a voice source and outputs the voice position to the directional voice receiving device. The directional voice receiving device receives a voice signal generated by the voice source according to the voice position. The noise suppressor eliminates the noise of the voice signal to generate a voice recognition signal based on noise model corresponding to the voice position. The voice recognition processor receives the voice recognition signal and generates an operating signal based on the voice recognition signal.

23. 发明授权

US11482311B2 Automated clinical documentation system and method 有权
公开(公告)号：US11482311B2
公开(公告)日：2022-10-25
申请号：US17210120
申请日：2021-03-23
申请人： Nuance Communications, Inc.
发明人： Donald E. Owen , Garret N. Erskine , Mehmet Mert Öz
IPC分类号： G16H10/60 , G16H50/30 , A61B5/00 , H04R3/12 , G16H40/20 , G06F40/30 , G06F40/40 , G06F40/174 , G10L17/00 , G06F16/683 , G16Y20/00 , G06V20/10 , G06V20/52 , G06V40/16 , G06V40/20 , G06V40/10 , H04L51/222 , G16H80/00 , G16H30/00 , G16H40/63 , H04N7/18 , H04R3/00 , G16H10/20 , G06T7/00 , H04R1/32 , G16H15/00 , H04L51/02 , G16H40/60 , G06F21/62 , G06F16/904 , G06F3/16 , G16H30/20 , G06K9/62 , G16H30/40 , G10L21/0232 , G16H50/20 , G06N3/00 , G16B50/00 , G06F16/635 , G06K19/077 , G10L15/08 , G11B27/10 , H04R3/02 , G10L15/26 , H04R1/40 , G10L15/22 , G10L21/0208 , G10L15/18
摘要： A method, computer program product, and computing system for automating a monitoring process is executed on a computing device and includes obtaining encounter information of a patient encounter. The encounter information is processed to determine if the encounter information is indicative of a potential medical situation. An inquiry is initiated concerning the potential medical situation.

24. 发明申请

US20220319530A1 SYSTEMS AND METHODS FOR INTEGRATED CONFERENCING PLATFORM 有权
公开(公告)号：US20220319530A1
公开(公告)日：2022-10-06
申请号：US17654539
申请日：2022-03-11
申请人： Shure Acquisition Holdings, Inc.
发明人： Leif Josef Moravy , Mathew T. Abraham , Paul Gunia , John Casey Gibbs , Lucas Brant Farran
IPC分类号： G10L21/0232 , G06F3/16 , G06F21/60 , H04L7/00 , H04L43/08 , H04R1/40 , H04R3/00 , H04R3/12
摘要： A software-based conferencing platform is provided. The platform comprises a plurality of audio sources providing input audio signals, the audio sources including a virtual audio device driver configured to receive far-end input audio signals from a conferencing software module, and a network audio library configured to receive near-end input audio signals from one or more near-end audio devices. The platform further comprises a digital signal processing component configured to receive the input audio signals from the audio sources and generate audio output signals based the received signals, the digital signal processing component comprising an acoustic echo cancellation module configured to apply acoustic echo cancellation techniques to one or more of the near-end input audio signals.

25. 发明申请

US20220301577A1 ECHO CANCELLATION METHOD AND APPARATUS 有权
公开(公告)号：US20220301577A1
公开(公告)日：2022-09-22
申请号：US17832747
申请日：2022-06-06
申请人： Spreadtrum Communications (Shanghai) Co., Ltd.
发明人： Benbiao Luo , Siwei Pan , Fei Dong , Yaqin Yong , Wei Ji , Weiwei Yu , Fuhui Lin
IPC分类号： G10L21/0232 , G10L25/51 , G10L25/03
摘要： An echo cancellation method, which is applied to an electronic device having a first sound pickup apparatus and a second sound pickup apparatus, are used in a voice communication process to: perform, with use of a first near-end signal d1(k), adaptive filtering on a second near-end signal d2(k) that is delayed, to obtain a first filtering signal e2(k), where the first filtering signal e2(k) is an echo signal with a voice being filtered out and with only an echo being retained; then determine, with use of the first filtering signal e2(k), a signal to be transmitted EE1(k); and send same to a peer-end electronic device.

26. 发明申请

US20220284914A1 METHOD FOR DENOISING VOICE DATA, DEVICE, AND STORAGE MEDIUM 有权
公开(公告)号：US20220284914A1
公开(公告)日：2022-09-08
申请号：US17824623
申请日：2022-05-25
申请人： Apollo Intelligent Connectivity (Beijing) Technology Co., Ltd.
发明人： Rong LIU
IPC分类号： G10L21/0232 , G10L21/0364 , G10L15/22 , G10L13/02 , G10L21/034
摘要： The present disclosure provides a method for denoising voice data, an electronic device, and a computer readable storage medium. The present disclosure relates to the technical field of artificial intelligence, such as Internet of Vehicles, smart cockpit, smart voice, and voice recognition. A specific embodiment of the method includes: receiving an input to-be-played first piece of voice data; and invoking, in response to not detecting a synthetic voice interruption signal in a process of playing the first piece of voice data, a preset first denoising algorithm to filter out noise data except for the first piece of voice data.

27. 发明申请

US20220284898A1 DYNAMIC ADJUSTMENT OF WAKE WORD ACCEPTANCE TOLERANCE THRESHOLDS IN VOICE-CONTROLLED DEVICES 有权
公开(公告)号：US20220284898A1
公开(公告)日：2022-09-08
申请号：US17705233
申请日：2022-03-25
申请人： Spotify AB
发明人： Daniel BROMAND , Joseph CAUTERUCCIO , Sven Erland Fredrik LEWIN
IPC分类号： G10L15/22 , G10L15/08 , G10L15/30 , G10L21/0232 , H04R1/40 , H04R3/00 , H04R5/027
摘要： Systems and methods are provided for detecting wake words. An electronic device detects, from a microphone array, an audio signal in an environment proximate to the audio front end system. The electronic device processes the audio signal using a plurality of wake word detection engines, including dynamically adjusting how many wake word detection engines are available for processing the audio signal. The electronic device independently adjusts respective wake word detection thresholds for the plurality of wake word detection engines used to process the audio signal.

28. 发明授权

US11430460B2 Method and device for processing audio signal, and storage medium 有权
公开(公告)号：US11430460B2
公开(公告)日：2022-08-30
申请号：US17218086
申请日：2021-03-30
申请人： BEIJING XIAOMI PINECONE ELECTRONICS CO., LTD.
发明人： Haining Hou
IPC分类号： G10L21/0232 , G10L25/18 , H04R1/40 , H04R3/00 , G10L21/0216
摘要： An original noisy signal of each of at least two microphones is acquired by acquiring, using the at least two microphones, an audio signal emitted by each sound source. For each frame in time domain, an estimated frequency-domain signal of each sound source is acquired according to the original noisy signal of each of the at least two microphones. A frequency collection containing a plurality of predetermined static frequencies and dynamic frequencies is determined in a predetermined frequency band range. A weighting coefficient of each frequency contained in the frequency collection is determined according to the estimated frequency-domain signal of the each frequency in the frequency collection. A separation matrix of the each frequency is determined according to the weighting coefficient. The audio signal emitted by each of the at least two sound sources is acquired based on the separation matrix and the original noisy signal.

29. 发明授权

US11430436B2 Voice interaction method and vehicle using the same 有权
公开(公告)号：US11430436B2
公开(公告)日：2022-08-30
申请号：US16485118
申请日：2019-03-29
申请人： LG Electronics Inc.
发明人： Soryoung Kim
IPC分类号： G10L15/22 , B60W40/08 , B60W50/10 , G10L15/06 , G10L15/08 , G10L15/30 , G10L21/0232 , G10L21/0364 , B60W60/00
摘要： A voice interaction method and a vehicle using the same are disclosed. A voice interaction method according to an embodiment of the present invention activates a personal terminal through which a voice signal of an occupant is received as a voice interaction assisting device between the vehicle and the occupant and changes presence or absence of a voice interaction between the vehicle and the occupant and voice interaction settings according to states of the vehicle and the occupant.

30. 发明申请

US20220262387A1 AUDIO DE-ESSER INDEPENDENT OF ABSOLUTE SIGNAL LEVEL 有权
公开(公告)号：US20220262387A1
公开(公告)日：2022-08-18
申请号：US17733397
申请日：2022-04-29
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Giulio Cengarle , Antonio Mateos Sole , Brett G. Crockett
IPC分类号： G10L21/0232 , G10L21/0264 , H03G3/30
摘要： Methods, systems, and computer program products of automatic de-essing are disclosed. An automatic de-esser can be used without manually setting parameters and can perform reliable sibilance detection and reduction regardless of absolute signal level, singer gender and other extraneous factors. An audio processing device divides input audio signals into buffers each containing a number of samples, the buffers overlapping one another. The audio processing device transforms each buffer from the time domain into the frequency domain and implements de-essing as a multi-band compressor that only acts on a designated sibilance band. The audio processing device determines an amount of attenuation in the sibilance band based on comparison of energy level in sibilance band of a buffer to broadband energy level in a previous buffer. The amount of attenuation is also determined based on a zero-crossing rate, as well as a slope and onset of a compression curve.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式