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公开(公告)号：US10587968B2
公开(公告)日：2020-03-10
申请号：US16076029
申请日：2016-09-13
申请人： D&M Holdings, Inc.
发明人： Koji Maeda
摘要： [Problem] In the case where an audio signal of the same source is output from a plurality of speakers, the speakers are adjusted so that the audio signals become optimal at a listening position. [Solution] Processing in which an audio signal output from a wireless speaker 1 is collected by a microphone of a controller 2 carried by a listener and a delay time is measured that is the difference between an output time of the audio signal from the wireless speaker 1 and an input time of the audio signal to the microphone of the controller 2 is performed on a plurality of the wireless speakers 1 that output an audio signal of the same source, and the delay times of the audio signals from these respective wireless speakers 1 are measured. Output timings of these respective wireless speakers 1 are adjusted on the basis of these delay times.
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公开(公告)号：US20200029162A1
公开(公告)日：2020-01-23
申请号：US16498477
申请日：2017-09-21
申请人： D&M Holdings, Inc.
发明人： Keishi Matsunaga
IPC分类号： H04R29/00 , H04R3/04 , G10L21/0264
摘要： [Problem] To provide an audio device capable of further reliably accepting voice control even during playback. [Solution] An audio device 2 comprises: a parameter determination unit 30 that determines an echo-back parameter for canceling a wraparound signal that enters voice-control microphones 20-1, 20-2 as the audio from a speaker during playback; a filter processing unit 27 that performs filtering using the echo-back parameter for audio signals collected by the voice-control microphones 20-1, 20-2 during playback; a voice recognition unit 28 that performs voice recognition processing for a filtered audio signal; and an operation acceptance unit 29 that accepts voice control on the basis of the voice recognition results. The parameter determination unit 30 outputs a test signal from a speaker and collects the test signal through the voice-control microphones 20-1, 20-2, and determines the echo-back parameter on the basis of the delay time and the attenuation rate of the collected audio signal relative to the test signal.
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13.发明申请公开(公告)号：US20190191248A1
公开(公告)日：2019-06-20
申请号：US16322184
申请日：2017-08-01
申请人： D&M Holdings, Inc.
发明人： Brendon Stead , Achim Schulz
CPC分类号： H04R5/02 , H04R1/02 , H04R1/025 , H04R1/403 , H04R29/002 , H04S3/008 , H04S7/305 , H04S2420/01
摘要： A sound bar is provided which includes a generally elongate rectangular structure, with one angled output face having a plurality of speakers disposed therein, to thereby provide enhanced audio output. The sound bar is beneficially provided with a single mounting surface configured and arranged such that the sound bar can be mounted on both a table/shelf (horizontal orientation) and a wall (vertical orientation) via the single mounting surface by rotating the sound bar 180°, wherein the audio output in both mounting orientations is a multi-directional 3D audio output that travels to and bounces off both the walls and the ceiling of a room in which the sound bar is located.
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公开(公告)号：US10310806B2
公开(公告)日：2019-06-04
申请号：US15760419
申请日：2016-03-15
申请人： D&M Holdings, Inc.
发明人： Sho Kodama
摘要： To provide a technology capable of changing an output characteristic of music data more efficiently with a simpler operation irrespective of whether or not the music data is being played back, an audio controller (2) identifies a usage environment of a wireless speaker (1) from picked-up image data on an installation room of the wireless speaker (1). Then, an output characteristic suitable for the identified usage environment is selected, and the selected output characteristic is set as an output characteristic of music data to be output from the wireless speaker (1). In this case, a ratio between a width of a wall behind the wireless speaker (1) and a width of the speaker is obtained from the picked-up image data obtained by picking up an image of the installation room of the wireless speaker (1) so that boundaries between the wall behind the wireless speaker (1) and both sides thereof are aligned with both edges of an angle of view, and a size of the installation room of the wireless speaker (1) is identified based on this ratio to be used as the usage environment. Further, an installation position of the speaker is identified based on a display position of the speaker in the picked-up image data to be also used as the usage environment.
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公开(公告)号：US20170330571A1
公开(公告)日：2017-11-16
申请号：US15522403
申请日：2015-09-07
申请人： D&M Holdings, Inc.
发明人： Masato Komaki
IPC分类号： G10L19/02
CPC分类号： G10L19/02 , A61B5/121 , G10L21/00 , G11B2020/10564 , H04L67/306 , H04R5/04 , H04R25/70 , H04R2205/041
摘要： [Problem]To provide an audio device with which it is possible to efficiently utilize the storage capacity of a storage device for storing audio data. [Solution] In this audio device 1, in accordance with user profile information stored in a profile information storage unit 102, audio data inputted to an audio data input unit 103 is subjected by a filter unit 104 to a process of cutting a frequency band higher than the highest frequency audible to the user) and/or a frequency band lower than the lowest frequency audible to the user, and the data is then encoded by a codec unit 105, and stored to an audio storage device 100. Audio data can thereby be stored in the audio storage device 100 in compressed form with no noticeable decline in sound quality to the user, making it possible to store more audio data, such as music, in the audio storage device 100.
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公开(公告)号：USD746254S1
公开(公告)日：2015-12-29
申请号：US29497347
申请日：2014-07-23
申请人： D&M HOLDINGS INC.
设计人： Reiko Ito
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公开(公告)号：US20150281828A1
公开(公告)日：2015-10-01
申请号：US14370946
申请日：2012-11-30
申请人： D&M Holdings, Inc.
发明人： Osamu Horikawa
IPC分类号： H04R1/10
CPC分类号： H04R1/1058 , H04R1/1008 , H04R1/1066 , H04R1/1075 , H04R5/0335
摘要： [Problem] To prevent sound leakage through gaps between the wearing surface side of ear pads and areas around the ears when headphones are worn and used by a user. [Solution] For headphones that have ear pads which are attached to the surfaces of housing sections, each having a built-in speaker driver for outputting an audio signal as sound, which come in contact with the ears of a listener, convex sections in the form of gradually curved surfaces are provided in the wearing surface regions of the ear pads that come in contact with an upper anterior side of the head of the listener and a lower posterior side of the head of the listener, whereby the ear pads are shaped to fit well to the areas around the ears of the user without forming any gaps when the ear pads are worn.
摘要翻译： [问题]为了防止当耳机佩戴和使用时耳塞的佩戴面侧和耳朵周围的区域之间的间隙泄漏。 [解决方案]对于具有附接到壳体部分表面的耳垫的耳机，每个耳机具有内置的扬声器驱动器，用于输出与收听者的耳朵接触的声音作为声音的音频信号， 在与收听者头部的上前侧接触的耳垫的磨损表面区域和收听者的头部的后后侧设置逐渐曲面的形式，由此将耳垫成形为 适合用户耳朵周围的区域，而不会在耳垫磨损时形成任何间隙。
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公开(公告)号：US20230007422A1
公开(公告)日：2023-01-05
申请号：US17779597
申请日：2020-09-29
申请人： D&M Holdings, Inc.
发明人： Sho Kodama
摘要： [Problem] To generate acoustic profile information using a simple operation and without increasing the cost of a multichannel audio device. [Solution] A wireless recording playback terminal 5 is positioned at a listening point of a multichannel audio device 2 as a measuring microphone. The wireless recording playback terminal 5 records, as channel playback data in accordance with a test signal playback command received from the multichannel audio device 2, a test signal outputted from a speaker 3 that corresponds to the channel designated by the command. The wireless recording playback terminal 5 also plays back the sound source of the test signal and records the played-back sound source as sound source playback data without being outputted to the outside from the speaker. An acoustic profile information generation server 4 compares these playback data to measure the delay time and attenuation rate of the channel playback data with respect to the sound source playback data, generates the acoustic profile information of the designated channel on the basis of the result of this measurement, and sets the generated acoustic profile information to the multichannel audio device 2.
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公开(公告)号：US20220121539A1
公开(公告)日：2022-04-21
申请号：US17548823
申请日：2021-12-13
申请人： D&M Holdings, Inc.
发明人： Hiroyuki Uno
摘要： Provided is a technology for supporting solution of a fault that has occurred in a system including an audio-visual device. A solution support program storage unit (7) is configured to store, for each potential fault, a solution support program for supporting a user's job for solving the each fault. At least one of the solution support programs for handling a fault having a plurality of possible causes includes processing for displaying a message for prompting the user to conduct a predetermined job, processing for displaying a question for the user, processing for receiving a user's answer to the question, and processing for displaying a message indicating a solution corresponding to the received answer. Then, a main control unit (9) determines a fault based on the information acquired through an audio-visual signal input interface unit (3) and an audio-visual signal output interface unit (4), and executes the solution support program for handling the determined fault.
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公开(公告)号：US20210151044A1
公开(公告)日：2021-05-20
申请号：US16638540
申请日：2018-03-14
申请人： D&M Holdings, inc.
发明人： Yukihiro Yoshida
IPC分类号： G10L15/22 , H04R1/08 , G06F3/16 , G10L15/08 , G10L15/28 , H05B45/325 , H05B47/12 , H05B47/155 , H05B45/10 , H05B45/20
摘要： [Problem] To provide an audio device having a voice operation receiving function with which the state of a voice recognition process can be notified in detail without affecting an audio playback environment, and which is inexpensive and has an excellent degree of freedom in design. [Solution] A wireless speaker 1 has a voice operation receiving function that receives an operation by a voice input into a microphone 11. The wireless speaker comprises: an LED 12; an LED control unit 18 that subjects the LED 12 to PWM control; and a lighting pattern storage unit 17 that stores a lighting pattern in which the brightness is changed on a time axis for each state of a voice recognition process. The LED control unit 18 subjects the LED 12 to PWM control in accordance with the lighting pattern stored in the lighting pattern storage unit 17 corresponding to the state of the voice recognition process performed on the voice input into the microphone 11.
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