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121. 发明授权

US10665216B2 Control method and controller 有权
公开(公告)号：US10665216B2
公开(公告)日：2020-05-26
申请号：US16247717
申请日：2019-01-15
申请人： Yamaha Corporation
发明人： Akira Maezawa
IPC分类号： G10H1/00 , G10G3/04
摘要： A control method includes: detecting a first sound signal from a musical instrument through a sensor arranged by the musical instrument; receiving a result of detection related to a first event in music performance; determining a tracking coefficient that indicates how closely a second event follows the first event in the music performance; determining an operation mode of the second event based on the tracking coefficient; and outputting the music from the automated musical instrument based on the operation mode.

122. 发明授权

US10657936B2 Electronic musical instrument, electronic musical instrument control method, and storage medium 有权
公开(公告)号：US10657936B2
公开(公告)日：2020-05-19
申请号：US16367689
申请日：2019-03-28
申请人： CASIO COMPUTER CO., LTD.
发明人： Tomomi Konishi
IPC分类号： G10H1/00 , G10G3/04
摘要： An electronic musical instrument includes a display, a memory, and at least one processor. The memory is configured to store a plurality of song data items. Each of the plurality of song data items includes a plurality of event data items and the plurality of song data items does not include size information of each of the plurality of event data items. The at least one processor is configured to read at least one song data item from among the plurality of song data items, add an identifier to each of the plurality of event data items of the read at least one song data item, calculate size information for each of the plurality of event data items, associate the size information calculated for each of the plurality of event data items with the corresponding identifier, display a content of a first event data item, refer to the associated size information when the content of the first event data item is displayed on the display and a content of a second event data item is not displayed on the display, and display, in accordance with the associated size information referred to, the content of the second event data item on the display, instead of displaying the content of the first event data item.

123. 发明申请

US20190341009A1 KEY ASSISTED USER INPUT SYSTEM AND METHOD FOR A PIANO SYSTEM 审中-公开
公开(公告)号：US20190341009A1
公开(公告)日：2019-11-07
申请号：US16512788
申请日：2019-07-16
申请人： SUNLAND INFORMATION TECHNOLOGY CO., LTD.
发明人： Bin Yan , Zhengjun Yan
IPC分类号： G10G3/04 , G10G1/02
摘要： A piano system with key assisted user input may include one or more execution devices, one or more sensors, at least one signal processing circuit, a processor and a display. The one or more sensors may be configured to detect a signal indicating a status change of at least one of the one or more execution devices. The at least one signal processing circuit may be configured to generate a control signal for controlling an input of a computer device in response to the signal detected by the one or more sensors. The processor may be configured to process the control signal to determine content to be displayed on a user interface. The display may be configured to display the determined content on the user interface.

124. 发明授权

US10304428B2 Hammer velocity measurement system 有权
公开(公告)号：US10304428B2
公开(公告)日：2019-05-28
申请号：US16032608
申请日：2018-07-11
申请人： Steinway, Inc.
发明人： Richard Shepherd
IPC分类号： G10H1/14 , G10G3/04 , G10C3/18 , G10F1/02 , G10H1/34
摘要： A system 100, for determining the velocity of a hammer 120 of a keyboard instrument, with a light transceiver 140 and processing circuitry 160. The light transceiver 140 being configured to transmit a light signal to a hammer 120 to measure a hammer velocity, receive a reflected light signal from the hammer 120 indicative of the velocity of the hammer 120 and send an electrical signal to the processing circuitry 160, where the electrical signal is based on the reflected light signal from the hammer 120. The processing circuitry 160 being configured to receive and process the electrical signal so that a time interval between the electrical signal passing through a first trigger point and a second trigger point and the velocity of the hammer 120 can be determined.

125. 发明授权

US10297241B2 Sound signal processing method and sound signal processing apparatus 有权
公开(公告)号：US10297241B2
公开(公告)日：2019-05-21
申请号：US16123478
申请日：2018-09-06
申请人： YAMAHA CORPORATION
发明人： Dan Sasai
IPC分类号： G10H7/00 , G10H1/40 , G10H1/00 , G10L25/51 , G10G3/04 , G10L25/27 , G10L25/54
摘要： A sound signal processing method according to an embodiment includes a step of acquiring an input sound signal, a step of acquiring a beat number per unit time period from the input sound signal, a step of normalizing the input sound signal with the beat number per unit time period, a step of calculating a beat spectrum of the normalized input sound signal, and a step of calculating a rhythm similarity between the beat spectrum of the normalized input sound signal and a normalized beat spectrum calculated from a reference sound signal.

126. 发明申请

US20170169805A1 Hammer Velocity Measurement System 审中-公开
公开(公告)号：US20170169805A1
公开(公告)日：2017-06-15
申请号：US15437789
申请日：2017-02-21
申请人： Steinway, Inc.
发明人： Richard Shepherd
IPC分类号： G10G3/04 , G10H1/14 , G10F1/02 , G10H1/34
CPC分类号： G10G3/04 , G10C3/18 , G10F1/02 , G10H1/14 , G10H1/34 , G10H1/344 , G10H2220/271 , G10H2220/305
摘要： A system 100, for determining the velocity of a hammer 120 of a keyboard instrument, with a light transceiver 140 and processing circuitry 160. The light transceiver 140 being configured to transmit a light signal to a hammer 120 to measure a hammer velocity, receive a reflected light signal from the hammer 120 indicative of the velocity of the hammer 120 and send an electrical signal to the processing circuitry 160, where the electrical signal is based on the reflected light signal from the hammer 120. The processing circuitry 160 being configured to receive and process the electrical signal so that a time interval between the electrical signal passing through a first trigger point and a second trigger point and the velocity of the hammer 120 can be determined.

127. 发明申请

US20050247182A1 Automatic player musical instrument having playback table partially prepared through transcription from reference table and computer program used therein 有权
标题翻译：自动播放器乐器具有通过从其中使用的参考表和计算机程序的转录部分准备的播放表
公开(公告)号：US20050247182A1
公开(公告)日：2005-11-10
申请号：US11102914
申请日：2005-04-08
申请人： Tomoya Sasaki , Tsutomu Sasaki
发明人： Tomoya Sasaki , Tsutomu Sasaki
IPC分类号： G10F1/02 , G10G3/04 , G10H1/00
CPC分类号： G10G3/04 , G10F1/02
摘要： An automatic player piano is only equipped with key sensors, and the automatic player is expected to give rise to hammer motion to be varied together with the loudness of tones; the manufacturer prepared not only a velocity conversion table expressing a relation between measured values of the hammer velocity and measured values of the reference key velocity but also a reference table expressing a relation between measured values of hammer velocity and target values of reference key velocity through experiments, and the velocity conversion table and reference table were stored in a suitable memory in the automatic player; the automatic player determines a playback table partially through an experiment and partially through transcription from reference table so as to drive the hammers without influence of unstable key motion at large loudness.
摘要翻译：自动播放器钢琴只配备有钥匙传感器，自动播放器预计会产生与声音响度变化的锤子运动; 制造商不仅准备了表示锤速度的测量值和参考键速度的测量值之间的关系的速度转换表，而且还准备了通过实验表示锤速度和参考键速度的目标值之间的关系的参考表，速度转换表和参考表存储在自动播放器中的合适的存储器中; 自动播放器通过实验部分地确定播放表，并且部分地通过来自参考表的转录来确定播放表，以便在不受大的响度的不稳定键运动的影响的情况下驱动锤。

128. 发明申请

US20050217461A1 Method for music analysis 失效
标题翻译：音乐分析方法
公开(公告)号：US20050217461A1
公开(公告)日：2005-10-06
申请号：US10823536
申请日：2004-04-14
申请人： Chun-Yi Wang
发明人： Chun-Yi Wang
IPC分类号： G10G3/04 , A63H5/00 , G04B13/00 , G10H1/40 , G10H7/00 , G11C5/00
CPC分类号： G10H1/40 , G10H2210/076 , G10H2250/135 , G10H2250/235
摘要： A method for music analysis. The method includes the steps of acquiring a music soundtrack, re-sampling an audio stream of the music soundtrack so that the re-sampled audio stream is composed of blocks, applying FFT to each block, deriving a vector from each transformed block, wherein the vector components are energy summations of the block within different sub-bands, applying auto-correlation to each sequence composed of the vector components of all the blocks in the same sub-band using different tempo values, wherein, for each sequence, a largest correlation result is identified as a confidence value and the tempo value generating the largest correlation result is identified as an estimated tempo, and comparing the confidence values of all the sequences to identify the estimated tempo having the largest confidence value as a final estimated tempo.
摘要翻译：音乐分析方法。该方法包括以下步骤：获取音乐声轨，对音乐声轨的音频流进行重新采样，使得重新采样的音频流由块组成，对每个块应用FFT，从每个变换块导出向量，其中，向量分量是不同子带内的块的能量相加，使用不同的速度值对相同子带中的所有块的矢量分量组成的每个序列应用自相关，其中对于每个序列，最大相关将结果识别为置信度值，并且将产生最大相关结果的速度值识别为估计速度，并且比较所有序列的置信度值，以将具有最大置信度值的估计速度识别为最终估计速度。

129. 发明申请

US20050211079A1 Automatic player musical instrument, automatic player used therein and method for exactly controlling keys 有权
标题翻译：自动播放器乐器，其中使用的自动播放器和用于精确控制键的方法
公开(公告)号：US20050211079A1
公开(公告)日：2005-09-29
申请号：US11057568
申请日：2005-02-14
申请人： Tomoya Sasaki , Yuji Fujiwara
发明人： Tomoya Sasaki , Yuji Fujiwara
IPC分类号： G01P3/00 , G10F1/02 , G10G3/04 , G10H1/00 , G10H3/00 , G10H5/00
CPC分类号： G10F1/02 , G10G3/04
摘要： An automatic playing system creates a feedback control loop for the keys incorporated in an acoustic piano; key sensors, which are provided under the front portions of the keys, informs a motion controller of current positions, and the motion controller periodically compares the current position and a current velocity with a target position on a reference trajectory and a target velocity to see whether or not a positional deviation and a velocity deviation occur; when the motion controller finds the deviations, the motion controller multiplies the deviations by a position gain and a velocity gain for determining an increment or decrement of the duty ratio of driving signals, and supplies the driving signals to the solenoid-operated actuators so as to accelerate or decelerate the keys; the gain is variable depending upon the key motion so that the actual key trajectory becomes close to the reference trajectory.
摘要翻译：自动演奏系统为包含在原声钢琴中的琴键创建反馈控制回路; 提供在键的前部的键传感器通知运动控制器当前位置，并且运动控制器周期性地将当前位置和当前速度与参考轨迹上的目标位置和目标速度进行比较，以查看是否或者不发生位置偏差和速度偏差; 当运动控制器发现偏差时，运动控制器将偏差乘以位置增益和速度增益，以确定驱动信号的占空比的增减，并将驱动信号提供给电磁驱动的致动器，以便加速或减速键; 增益根据关键运动而变化，使得实际的键轨迹变得接近参考轨迹。

130. 发明授权

US06940005B2 Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammer 有权
标题翻译：键盘乐器，用于精确地产生音调和锤子传感器，改变输出信号，正好表示锤子的物理量
公开(公告)号：US06940005B2
公开(公告)日：2005-09-06
申请号：US10293181
申请日：2002-11-13
申请人： Shigeru Muramatsu , Tsutomu Sasaki , Tadaharu Kato
发明人： Shigeru Muramatsu , Tsutomu Sasaki , Tadaharu Kato
IPC分类号： G10F1/02 , G01D5/347 , G10C3/18 , G10G3/04 , G10H1/00 , G10H1/34
CPC分类号： G10F1/02 , G01D5/34715 , G01D5/34776 , G10G3/04
摘要： A hammer sensor includes a photo-filter plate movable together with a hammer assembly and having a base plate fixed to the hammer shank and an arc pattern formed on the base plate and different in transparency from the base plate, a photo radiating element radiating a light beam toward the arc pattern and a photo detecting element disposed on the optical path of the light beam for converting the amount of transmitted light to an electric signal, wherein the photo-filter plate converts the rotational angle of the hammer assembly to the amount of light incident on the photo detecting element, and makes the photo radiating element and the photo detecting element stationary so that a suitable photo-shield case prevents the photo elements from environmental light.
摘要翻译：锤传感器包括可与锤组件一起移动的光过滤板，并且具有固定到锤柄的基板和形成在基板上且与基板不透明的弧形图案，辐射光的光辐射元件光束朝向弧形图案，以及光电检测元件，其设置在光束的光路上，用于将透射光量转换为电信号，其中，光电转换板将琴组件的旋转角度转换为光量入射到光电检测元件上，并使光辐射元件和光检测元件静止，使得合适的遮光罩防止光元件受到环境光的影响。

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