公开(公告)号：US20190149916A1

公开(公告)日：2019-05-16

申请号：US16097935

申请日：2017-04-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shinichi TAKAYAMA

IPC: H04R3/00 ,  H04R3/04 ,  H04R29/00 ,  G10L21/0224 ,  H04R5/04 ,  H04R5/027

CPC classification number: H04R3/005 ,  G10K11/17835 ,  G10L21/0224 ,  G10L2021/02166 ,  H04R3/00 ,  H04R3/04 ,  H04R5/027 ,  H04R5/04 ,  H04R29/00 ,  H04R29/002 ,  H04R29/005 ,  H04R2410/05 ,  H04R2420/05 ,  H04R2499/13

Abstract: An audio processing system is provided with a speaker, a plurality of microphones, and an audio processing device. The audio processing device includes a plurality of filters that allow audio signals of audio collected by the plurality of microphones to pass any respective first bands included in a band of the audio output from the speaker, a plurality of delayers that delay the audio signals passed through the plurality of filters by delay times corresponding to the first bands respectively, a correlation value calculator that calculates a correlation value of a plurality of audio signals delayed respectively by the plurality of delayers and an audio signal of the audio output from the speaker, and a determinator that determines presence or absence of abnormality in the plurality of microphones and the speaker based on the correlation value.

公开(公告)号：US20220256267A1

公开(公告)日：2022-08-11

申请号：US17729231

申请日：2022-04-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Junji ARAKI ,  Shinichi TAKAYAMA

IPC: H04R1/08 ,  H04R3/02 ,  H04M9/08 ,  G10L21/02

Abstract: A noise reduction device includes a processor that converts a noise signal collected by a microphone disposed in a control space into a noise signal in a frequency domain, a storage that stores the converted noise signal in the frequency domain as a reference signal, and a signal generator that generates a noise reduction signal for reducing the noise signal collected by the microphone at a control position of the control space. The processor determines whether or not the noise signal is non-stationary noise based on a frequency characteristic of the converted noise signal in the frequency domain and a frequency characteristic of the reference signal. When it is determined that the noise signal is the non-stationary noise, the processor controls the signal generator so as to cancel generation of the noise reduction signal.

公开(公告)号：US20220415336A1

公开(公告)日：2022-12-29

申请号：US17850575

申请日：2022-06-27

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shinichi TAKAYAMA

IPC: G10L21/02 ,  G08B5/22 ,  H04L65/403

Abstract: A voice communication apparatus includes a communication unit configured to communicate with one or more another terminals via a network, a voice signal processing unit configured to acquire a first voice signal collected from a voice input terminal, acquire a second voice signal output from another terminal, and detect whether there is howling based on the first and second voice signals, a control unit configured to determine whether a device connected to the voice input terminal or a device connected to the voice output terminal is a howling cause based on a detection result of the voice signal processing unit, and an alert notification unit configured to generate and output an alert screen when the control unit determines that the device connected to the voice input terminal or the device connected to the voice output terminal is the howling cause.

公开(公告)号：US20210014593A1

公开(公告)日：2021-01-14

申请号：US17038262

申请日：2020-09-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Junji ARAKI ,  Shinichi TAKAYAMA

IPC: H04R1/08 ,  H04R3/02

Abstract: A noise reduction device includes a processor that converts a noise signal collected by a microphone disposed in a control space into a noise signal in a frequency domain, a storage that stores the converted noise signal in the frequency domain as a reference signal, and a signal generator that generates a noise reduction signal for reducing the noise signal collected by the microphone at a control position of the control space. The processor determines whether or not the noise signal is non-stationary noise based on a frequency characteristic of the converted noise signal in the frequency domain and a frequency characteristic of the reference signal. When it is determined that the noise signal is the non-stationary noise, the processor controls the signal generator so as to cancel generation of the noise reduction signal.

公开(公告)号：US20190281398A1

公开(公告)日：2019-09-12

申请号：US16297907

申请日：2019-03-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro YAMAGUCHI ,  Toshihiro EZAKI ,  Kenichi KUBOTA ,  Masaru MATSUOKA ,  Yuji SUZUKI ,  Junji ARAKI ,  Shinichi TAKAYAMA

IPC: H04R29/00 ,  G10K11/16

Abstract: In a noise reduction device that generates and outputs a control sound signal for reducing noise, an internal loop control unit controls an internal loop in which a pre-output control sound signal that is acquired from a control sound output unit before output to a speaker is input to a sound receiver. A measurement unit measures an input level of a microphone sound signal and an input level of the pre-output control sound signal that has been input to the sound receiver in the internal loop. A fault detector uses the input level of the microphone sound signal and the input level of the pre-output control sound signal measured by the measurement unit to detect a fault in any one of the microphone, the sound receiver, the speaker, and the control sound output unit. A transmitter sends a result of fault detection performed by the fault detector to a management device.

公开(公告)号：US20160019888A1

公开(公告)日：2016-01-21

申请号：US14798731

申请日：2015-07-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shinichi SHIGENAGA ,  Ryota FUJII ,  Hisahiro TANAKA ,  Koshi TANAKA ,  Akitoshi IZUMI ,  Masanari MIYAMOTO ,  Shinichi TAKAYAMA

IPC: G10L15/08 ,  G06Q30/06 ,  H04R1/08

CPC classification number: G06Q30/0633 ,  G10L15/26 ,  G10L25/48 ,  H04R3/005

Abstract: There is provided an order entry system including: a first microphone that picks up speech regarding order details of a first speaker; a second microphone that picks up speech regarding the order details of a second speaker for checking the order details of the first speaker; a speech recognizer that recognizes the speech regarding the order details of the first speaker which is picked up by the first microphone and the speech regarding the order details of the second speaker which is picked up by the second microphone; and an order data output that displays on a display, a display screen of order data regarding the order details of the first speaker, including a first speech recognition result of the speech regarding the order details of the first speaker and a second speech recognition result of the speech regarding the order details of the second speaker.

Abstract translation: 提供了一种订单输入系统，包括：第一麦克风拾取关于第一扬声器的订单细节的语音; 第二麦克风拾取关于第二扬声器的订单细节的语音，用于检查第一说话者的订单细节; 识别关于由第一麦克风拾取的第一扬声器的订单细节的语音和关于由第二麦克风拾取的第二扬声器的订单细节的语音的语音识别器; 以及在显示器上显示的订单数据输出，关于第一说话者的订单细节的订单数据的显示屏幕，包括关于第一说话者的订单细节的语音的第一语音识别结果和第二语音识别结果 关于第二发言人的订单细节的讲话。