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公开(公告)号：US09742381B2
公开(公告)日：2017-08-22
申请号：US15342419
申请日：2016-11-03
申请人： Onkyo Corporation
发明人： Nobuya Tachimori
摘要： The pulse width modulator includes a subtraction unit configured to perform subtraction between an m value digital signal and a pulse width modulation signal; a feedforward filter unit configured such that a ΔΣ modulator to which an output signal of the subtraction unit is input and which includes integrators of a second order or higher is in cascade connection, and configured to operate with a sampling frequency FS; a product-sum computing unit configured to operate with a sampling frequency (FS/n) (n: an integer of two or more) to perform product-sum computing of an output signal of each integrator of the feedforward filter unit; and a pulse width modulation unit configured to operate with the sampling frequency (FS/n) to perform pulse width modulation of an output signal of the product-sum computing unit to output a pulse width modulation signal.
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公开(公告)号：US09455736B2
公开(公告)日：2016-09-27
申请号：US14957971
申请日：2015-12-03
申请人： Onkyo Corporation
发明人： Nobuya Tachimori
IPC分类号： H03M3/00
CPC分类号： H03M3/424 , H03M7/3011 , H03M7/3026 , H03M7/304
摘要： There is provided a ΔΣ modulator including a loop filter for inputting an m-value digital signal into a subtractor, an n-value quantizer for inputting a first output signal to be output from the loop filter and outputting a second output signal as an n-value digital signal, and a selecting device for inputting the first output signal and the second output signal therein, feeding back the first output signal to a subtractor of the loop filter when an absolute value of the first output signal is a predetermined value or more, and feeding back the second output signal to the subtractor of the loop filter when the absolute value is less than a predetermined value. The predetermined value in the selecting device is set to be larger than a maximum value of an absolute value of a quantization value to be obtained by the n-value digital signal.
摘要翻译： 提供一种ΔΣ调制器，其包括用于将m值数字信号输入到减法器中的环路滤波器，n值量化器，用于输入要从环路滤波器输出的第一输出信号，并输出第二输出信号作为n- 以及用于在其中输入第一输出信号和第二输出信号的选择装置，当第一输出信号的绝对值为预定值或更大时，将第一输出信号反馈到环路滤波器的减法器， 并且当所述绝对值小于预定值时，将所述第二输出信号反馈到所述环路滤波器的减法器。 选择装置中的预定值被设置为大于由n值数字信号获得的量化值的绝对值的最大值。
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公开(公告)号：US09230529B2
公开(公告)日：2016-01-05
申请号：US14513700
申请日：2014-10-14
申请人： Onkyo Corporation
发明人： Nobuya Tachimori
CPC分类号： G10H7/002 , G10H7/008 , G10H2230/015 , G10H2250/035 , G10L19/00
摘要： In a music reproducing apparatus for converting audio data into audio data of different data format so as to reproduce it, gapless reproduction and cross-fade reproduction are performed in a switching manner, and generation of a noise at time of the gapless reproduction is repressed. When a reproducing section performs the gapless reproduction, a converting section performs conversion into PCM data to be reproduced latterly using a buffer used for conversion into the PCM data to be reproduced formerly. Further, when the reproducing section performs the cross-fade reproduction, the converting section generates a buffer different from the buffer used for the conversion into the PCM data to be reproduced formerly in a storage section, and performs the conversion into the PCM data to be reproduced latterly using the generated buffer.
摘要翻译： 在用于将音频数据转换为不同数据格式的音频数据以再现它的音乐再现装置中，以切换方式执行无间隙再现和交叉淡入淡出再现，并且抑制无间隙再现时产生的噪声。 当再现部分执行无间隙再现时，转换部分使用用于转换成先前要再现的PCM数据的缓冲器，再次执行将要再现的PCM数据的转换。 此外，当再现部分执行交叉淡入淡出再现时，转换部分产生一个与用于转换成先前在存储部分中要再现的PCM数据中的缓冲器不同的缓冲器，并且将PCM数据转换为 后来使用生成的缓冲区进行再现。
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公开(公告)号：US09569166B2
公开(公告)日：2017-02-14
申请号：US14851108
申请日：2015-09-11
申请人： Onkyo Corporation
发明人： Nobuya Tachimori
CPC分类号： G06F3/16 , G06F1/163 , G06F1/1684 , G06F1/1694 , G06F1/3215 , G06F1/3231 , G06F1/3265 , G06F1/3293 , G06F3/017 , G06F3/1438 , G06F3/162 , G09G3/2003 , G09G3/3406 , G09G3/36 , G09G2300/023 , G09G2300/0456 , G09G2330/021 , G09G2330/022 , G09G2340/0428 , G11B20/10527 , H04M1/72527 , H04M1/72558 , Y02D10/122 , Y02D10/153 , Y02D10/173
摘要： In a smartphone that outputs PCM data and DSD data of different data format from PCM data to a USB DAC, to prevent generation of noises from the USB DAC when the smartphone accepts stopping instruction of outputting digital audio data to the USB DAC while outputting DSD data to the USB DAC.A controller 11 outputs mute data representing silence of DSD data to a USB DAC 2 when it accepts pausing instruction while outputting DSD data to the USB DAC 2.
摘要翻译： 当控制器11接收暂停指令同时向USB DAC 2输出DSD数据时，将表示DSD数据的静音的静音数据输出到USB DAC2。
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公开(公告)号：US09491549B2
公开(公告)日：2016-11-08
申请号：US14513335
申请日：2014-10-14
申请人： Onkyo Corporation
发明人： Kodai Mori , Nobuya Tachimori
摘要： It is an object of the present invention to provide an audio having intended sound quality to a user even when a headphone that is different from a headphone used for generating equalizer information is used.A correcting section corrects equalizer curve stored in an equalizer curve storage section based on a correction curve that is a gain difference of a frequency characteristic between a first headphone and a second headphone when the second headphone the frequency characteristic of which is different from that of the first headphone is used so as to output the corrected equalizer curve to a reproducing section. The reproducing section executes an equalizing process based on the equalizer curve output from the correcting section.
摘要翻译： 基于作为第一耳机与第二耳机之间的频率特性的增益差的校正曲线，当频率特性与第一耳机的频率特性不同时，校正部分校正存储在均衡器曲线存储部分中的均衡器曲线 使用第一耳机将校正的均衡器曲线输出到再现部分。 再现部分基于从校正部分输出的均衡器曲线执行均衡处理。
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