Yamaha Corporation

Ykk Corporation

Other

Revolabs, Inc

Sumitomo Bakelite Company Limited

Yamaha-united Communications

Yamaha-uc

Suzuki, Yutaka

Ryo Tanaka

Satoshi Ukai

Toshiaki Ishibashi

Masahiro Kusayama

Koichiro Sato

Yoshifumi Oizumi

Takayuki Inoue

Yutaka Tominaga

Pascal Cleve

Kenji Yuki

Ryo Mikuma

Masamichi Hasegawa

Naoto Kuriyama

Satoshi Suzuki

Yutaka Suzuki

Satoshi Matsumoto

Takuya Tamaru

Katsuichi Osakabe

Yukihiko Sakaguchi

Masao Ikeda

Holger Stoltze

Hideaki Matsunami

Makoto Takayama

Keiji Kamada

Kazuko Nishi

Tomokazu Nakayama

Keiji Kamata

A filtering method includes: receiving a first audio signal and a second audio signal that include sound emitted from a same sound source at different volumes; generating a filter signal by convoluting adaptive filter coefficients into the second audio signal; removing components of the filter signal from the first audio signal; and limiting a gain of the adaptive filter coefficients to 1.0 or less.

Filtering method, filtering device, and storage medium stored with filtering program

An audio signal processing method includes receiving an audio signal corresponding to a voice of a talker, obtaining an image of the talker, estimating posture information of the talker using the image of the talker, generating a correction filter according to the estimated posture information, performing filter processing on the audio signal using the generated correction filter, and outputting the audio signal on which the filter processing has been performed.

Audio signal processing method and audio signal processing apparatus that process an audio signal based on posture information

A talker prediction method obtains a voice from a plurality of talkers, records a conversation history of the plurality of talkers, identifies a talker of the obtained voice, and predicts a next talker among the plurality of talkers based on the identified talker and the conversation history.

Talker prediction method, talker prediction device, and communication system

An audio signal processing method includes receiving an audio signal corresponding to a voice of a talker, obtaining an image of the talker, estimating position information of the talker using the image of the talker, generating, according to the estimated position information, a correction filter configured to compensate for an attenuation of the voice of the talker, performing filter processing on the audio signal using the generated correction filter, and outputting the audio signal on which the filter processing has been performed.

Audio signal processing method and audio signal processing apparatus that process an audio signal based on position information

A signal processing system includes microphone units connected in series and a host device connected to one of the microphone units. Each of the microphone units has a microphone, a temporary storage memory, and a processing section for processing the sound picked up by the microphone. The host device has a non-volatile memory in which a sound signal processing program for the microphone units is stored. The host device transmits the sound signal processing program read from the non-volatile memory to each of the microphone units. Each of the microphone units temporarily stores the sound signal processing program in the temporary storage memory. The processing section performs a process corresponding to the sound signal processing program temporarily stored in the temporary storage memory and transmits the processed sound to the host device.

Signal processing system and signal processing meihod

An image processing apparatus includes an image data obtainer that obtains image data of an image that captures a plurality of conference participants, a face image detector that detects a face image of each of the plurality of conference participants from the image data obtained by the image data obtainer, an image organizer that extracts a detected face image and reorganizes detected face images into one image, a feeling estimator that estimates a feeling of each conference participant based on the detected face image, and a display mode changer that changes a display mode of the face image of each conference participant based on the estimated feeling.

Image processing apparatus, camera apparatus, and image processing method

A video conferencing system has a microphone array that operates to receive acoustic signals corresponding to voice activity and to determine that the signals are either from within a sound field of interest and from outside the sound field of interest, and if the signals are from outside the sound field of interest the system attenuates these signals by not steering a microphone array beam towards these signals.

Controlling the direction of a microphone array beam in a video conferencing system

An audio device includes an amplifier having a volume control circuit, a communication circuit configured to communicate with a host apparatus, a processor, and a memory having stored thereon instructions executable by the processor to cause the audio device to perform: setting a volume value in the volume control circuit; receiving, from the host apparatus through the communication circuit, an instruction value indicating a volume value to be set in the volume control circuit; comparing the received instruction value with a set value that is a volume value set in the volume control circuit; and sending an instruction signal based on a comparison result to the host apparatus through the communication circuit.

Audio device, audio system, and volume value control method

A video conference system operates to identity and to determine a location of things in a conference room, and to determine an orientation of video conference participants towards the identified things, and uses an assigned priority of the things that the participants are oriented towards to automatically control a camera to focus on the highest priority thing.

Automatic camera control in a video conference system

A signal processing unit calculates a first difference in time of arrival of sound from a sound source to a first and to a second microphone comprising a microphone array and calculates a second difference in time of arrival, which is the difference between the first difference in time of arrival and an actual time, of arrival, and determines the position of the sound source based on the sum of the first difference in time of arrival and the second difference in time of arrival.

Method for accurately calculating the direction of arrival of sound at a microphone array

Signal processing system and signal processing method

An audio or video conferencing system having an array comprised of two or more microphones and having one or more loudspeakers positioned proximate to the microphones. The conferencing system also has acoustic echo cancellation (AEC) functionality that removes direct and reverberant acoustic echo from microphone signals in two separate acoustic echo cancellation operations. The first AEC operation removes direct acoustic echo prior to a beamforming operation, and the second AEC operation removes reverberant acoustic echo from a microphone signal subsequent to the beamforming operation.

System and method for acoustic echo cancellation

The present invention provides a sheath for gastrostoma (), a sheathed dilator, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma. The sheath for gastrostoma () includes a sheath body () in which a gastrostomy catheter () is inserted and a handle (). The sheath for gastrostoma () lowers the insertion resistance of a gastrostomy catheter when inserted in a fistula before insertion of the gastrostomy catheter in the fistula for replacement in the patient's body. According to the invention, a sheath for gastrostoma, a sheathed dilator, a sheath for gastrostoma with insertion aid, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma which can lower the insertion resistance during placement of a catheter in the patient's body, facilitate air supply control of an endoscope and stabilize endoscopic visual field during surgery are provided.

Sheath for gastrostoma, sheathed dilator, sheath for gastrostoma with insertion aid, gastrostomy catheter kit, and method of splitting sheath for gastrostoma

Growing community of inventors

Hamamatsu, Japan

Ryo Tanaka