公开(公告)号：US10817249B2

公开(公告)日：2020-10-27

申请号：US15902394

申请日：2018-02-22

Applicant: YAMAHA CORPORATION

Inventor： Katsuaki Tanaka ,  Tomoyoshi Akutagawa ,  Hiroyuki Ichi ,  Yuki Suemitsu ,  Akihiko Suyama ,  Kazuya Mushikabe ,  Keisuke Tsukada

IPC: G06F3/16 ,  G06F3/0482 ,  G06F3/0484 ,  H04S7/00 ,  H04R3/12

Abstract: A list screen of a plurality of reproduction devices is displayed on a display unit based on relationship information between the plurality of reproduction devices which is connected via network. Selection of a reproduction device which is made to perform a content reproduction operation among the plurality of reproduction devices is received. A command is transmitted to the selected reproduction device.

公开(公告)号：US20180083796A1

公开(公告)日：2018-03-22

申请号：US15690907

申请日：2017-08-30

Applicant: Yamaha Corporation

Inventor： Akihiko Suyama ,  Masakazu Shirai ,  Yuki Suemitsu

IPC: H04L12/28

Abstract: A communication device includes a wireless communication portion and a control portion. The control portion is configured to: activate the wireless communication portion as a stand-alone access point, acquire network information from a device which has established connection to the access point, the network information being information for establishing connection to the network, stop the access point and connect the wireless communication portion to the network using the network information, and after the wireless communication portion is connected to the network, allow the wireless communication portion to function as an access point for relaying another device to the network.

公开(公告)号：US10593368B2

公开(公告)日：2020-03-17

申请号：US15871820

申请日：2018-01-15

Applicant: Yamaha Corporation

Inventor： Masafumi Toshitani ,  Hisashi Iida ,  Yuki Suemitsu

IPC: H04J3/06 ,  G11B27/10 ,  G11B27/036

Abstract: An audio device, which is configured to receive audio data from anther device, comprises a memory that stores instructions and a processor. The processor is configured to execute the instructions stored in the memory to: receive the audio data and a time stamp attached to the audio data, output a pulse data having a predetermined length, detect end time of the pulse data, compare the end time of the pulse data and the time stamp, adjust the audio data based on the comparing result, and output the adjusted audio data.

公开(公告)号：US10390138B2

公开(公告)日：2019-08-20

申请号：US15921711

申请日：2018-03-15

Applicant: Yamaha Corporation

Inventor： Masakazu Shirai ,  Yuki Suemitsu ,  Osamu Kohara ,  Futoshi Muronaga ,  Kazuhiro Iwashita

IPC: H04R3/12 ,  H04R5/02 ,  H04R5/04 ,  H04R27/00 ,  H04L29/08

Abstract: An audio system includes a first audio apparatus that receives a first audio signal with a first number of channels and a second audio apparatus connected to the first audio apparatus via a network. The first audio apparatus includes a signal processing unit configured to generate, on the basis of the first audio signal received from the outside of the first audio apparatus, a second audio signal with a second number of channels larger than the first number of channels, and a communication unit configured to transmit a third audio signal corresponding to a part of the channels in the second audio signal generated by the signal processing unit to the second audio apparatus.

公开(公告)号：US10917465B2

公开(公告)日：2021-02-09

申请号：US15904653

申请日：2018-02-26

Applicant: YAMAHA CORPORATION

Inventor： Akihiko Suyama ,  Yuki Suemitsu ,  Katsuaki Tanaka ,  Takeyoshi Aihara ,  Fukutaro Okuyama

IPC: G06F15/16 ,  H04L29/08 ,  G06F13/00 ,  H04L7/00 ,  H04N21/43 ,  G05B15/02 ,  G06F3/16

Abstract: A synchronization setting device and a system include at least one memory storing instructions, and at least one processor that implements the stored instructions to acquire first delay time to be set in a first distribution device for distributing first content data, and output the first delay time to the first distribution device or to a reproduction device that provides the first content data to the first distribution device.

公开(公告)号：US10587953B2

公开(公告)日：2020-03-10

申请号：US15805541

申请日：2017-11-07

Applicant: YAMAHA CORPORATION

Inventor： Akihiko Suyama ,  Masakazu Shirai ,  Yuki Suemitsu ,  Tomoyoshi Akutagawa

IPC: H04B7/00 ,  H04R3/12 ,  H04L12/24 ,  H04W8/00 ,  H04W76/10 ,  H04W8/22 ,  H04W84/12 ,  H04W84/18

Abstract: A communication system includes a control terminal device and one or more communication devices. The control terminal device transmits a search message to entire network when the communication device is registered into the communication system. When the communication device is connected to the network, the communication device determines whether a connection position of the connected communication device on the network is the predetermined connection position. When the communication device is not positioned at the predetermined connection position, the communication device cancels the connection with the network and then connects to the predetermined connection position of the network and responds to the search message through the network after the communication device directly connects to the control terminal device and obtains information for connecting to the predetermined connection position of the network.

公开(公告)号：US10567900B2

公开(公告)日：2020-02-18

申请号：US15825601

申请日：2017-11-29

Applicant: Yamaha Corporation

Inventor： Katsuaki Tanaka ,  Tomoyoshi Akutagawa ,  Yuki Suemitsu

IPC: H04S5/02 ,  H04M1/00 ,  H04R3/12 ,  H04S1/00 ,  H04Q9/00

Abstract: Provided is an audio system, including: at least two audio devices capable of holding communication among one another; and a stereo pair setting unit configured to set a stereo pair in which one of two audio devices included among the at least two audio devices serves as a parent device, and another of the two audio devices serves as a child device, in which: the parent device is configured to play, with a delay, a first-channel audio signal included in a first audio signal, and to transmit to the child device a second audio signal including at least a second-channel audio signal, which is included in the first audio signal; and the child device is configured to receive the second audio signal from the parent device to play the second-channel audio signal.

公开(公告)号：US10461949B2

公开(公告)日：2019-10-29

申请号：US15691113

申请日：2017-08-30

Applicant: Yamaha Corporation

Inventor： Yuki Suemitsu

IPC: H04L12/28 ,  H04L12/18 ,  H04W76/10 ,  H04W84/12 ,  H04W92/18 ,  H04W76/19 ,  H04W76/15 ,  H04W48/12 ,  H04L12/58 ,  H04W84/18 ,  H04W40/24

Abstract: A communication system includes communication devices configured to be connected to one another through a network. A root device which is one of the communication devices stores system information including address information and information on availability of communication of the communication devices. The root device is configured to transmit the system information periodically. Each of the communication devices is configured to send an acknowledgement message to the root device when receiving the system information. When an acknowledgement message from one of the communication devices has not been received by the root device, the root device is configured to rewrite the information on availability of communication of the communication device from which the acknowledgement message has not been received by the root device, as incommunicable, and to update the system information accordingly.

公开(公告)号：US10659879B2

公开(公告)日：2020-05-19

申请号：US16575877

申请日：2019-09-19

Applicant: YAMAHA CORPORATION

Inventor： Akihiko Suyama ,  Masakazu Shirai ,  Yuki Suemitsu ,  Tomoyoshi Akutagawa

IPC: H04B7/00 ,  H04R3/12 ,  H04L12/24 ,  H04W8/00 ,  H04W76/10 ,  H04W8/22 ,  H04W84/12 ,  H04W84/18

Abstract: A communication system includes a control terminal device and one or more communication devices. The control terminal device transmits a search message to entire network when the communication device is registered into the communication system. When the communication device is connected to the network, the communication device determines whether a connection position of the connected communication device on the network is the predetermined connection position. When the communication device is not positioned at the predetermined connection position, the communication device cancels the connection with the network and then connects to the predetermined connection position of the network and responds to the search message through the network after the communication device directly connects to the control terminal device and obtains information for connecting to the predetermined connection position of the network.

公开(公告)号：US10474424B2

公开(公告)日：2019-11-12

申请号：US15906343

申请日：2018-02-27

Applicant: YAMAHA CORPORATION

Inventor： Katsuaki Tanaka ,  Tomoyoshi Akutagawa ,  Hiroyuki Ichi ,  Yuki Suemitsu ,  Akihiko Suyama ,  Kazuya Mushikabe ,  Keisuke Tsukada

IPC: G06F3/16 ,  H04R3/12 ,  G05B15/02 ,  H04R27/00 ,  H04S7/00 ,  H04S1/00 ,  H04S3/00

Abstract: In a case where a sound of one channel of an audio signal which is reproduced and emitted by a second audio device is emitted from a first audio device, an audio device receives a signal of other channel of the audio signal from the second audio device and causes a sound emission unit to emit a sound of the other channel.