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1. 发明申请

US20050190659A1 Audio reproducing apparatus 审中-公开
标题翻译：音频再现装置
公开(公告)号：US20050190659A1
公开(公告)日：2005-09-01
申请号：US11067915
申请日：2005-03-01
申请人： Futoshi Shirakihara , Katsutoshi Ohta , Takeshi Fujita , Tomoko Sogabe
发明人： Futoshi Shirakihara , Katsutoshi Ohta , Takeshi Fujita , Tomoko Sogabe
IPC分类号： G11B7/085 , G11B27/10
CPC分类号： G11B27/105
摘要： To allow high speed search for audio files described in a play list and to quickly perform reproduction of the audio files according to the play list even when a plurality of audio files are recorded on a recording medium, a matching comparison unit for performing a search for a file name described in the play list from file names included in a file name list is provided in a signal processing circuit for performing processing such as decoding of an audio file. When reproduction using the play list is instructed, respective file numbers of the audio files detected in the search by the matching comparison unit are output to a control circuit.
摘要翻译：为了允许高速搜索播放列表中描述的音频文件，并且即使当多个音频文件被记录在记录介质上时也可以根据播放列表快速地执行音频文件的再现，匹配比较单元用于执行搜索在包括在文件名列表中的文件名中的播放列表中描述的文件名被提供在用于执行诸如音频文件解码的处理的信号处理电路中。当指示使用播放列表的再现时，由匹配比较单元在搜索中检测到的音频文件的各个文件编号被输出到控制电路。

2. 发明申请

US20050201495A1 Reproducing apparatus and method for controlling the same 审中-公开
标题翻译：再生装置及其控制方法
公开(公告)号：US20050201495A1
公开(公告)日：2005-09-15
申请号：US11057758
申请日：2005-02-15
申请人： Tomoko Sogabe , Takeshi Fujita , Futoshi Shirakihara
发明人： Tomoko Sogabe , Takeshi Fujita , Futoshi Shirakihara
IPC分类号： G11B20/14 , G10L19/00 , G11B7/005 , G11B20/10 , H03D1/00 , H04L27/06
CPC分类号： G11B20/10527 , G11B2020/00057 , G11B2020/10546
摘要： A synchronization signal detecting section is internally provided with a stream type counter for counting stream type information output from a header information analyzer and a stream type determining section for instructing, based on a value in the stream type counter, a signal processing section to initiate stream conversion. If the value in the stream type counter reaches a predetermined value, it is determined that the input signal is a stream signal. If the value in the stream type counter does not reach the predetermined value, synchronization signal detection is restarted from the address which is one bit ahead of an address stored in a synchronization address storing section.
摘要翻译：同步信号检测部分内部设置有用于计数从标题信息分析器输出的流类型信息的流类型计数器和用于根据流类型计数器中的值指示信号处理部分来发起流的流类型确定部分转换。如果流型计数器中的值达到预定值，则确定输入信号是流信号。如果流类型计数器中的值未达到预定值，则从存储在同步地址存储部分中的地址前一位的地址重新开始同步信号检测。

3. 发明授权

US08116470B2 Impulse response processing apparatus and reverberation imparting apparatus 有权
标题翻译：脉冲响应处理装置和混响赋予装置
公开(公告)号：US08116470B2
公开(公告)日：2012-02-14
申请号：US12475314
申请日：2009-05-29
申请人： Futoshi Shirakihara
发明人： Futoshi Shirakihara
IPC分类号： H03G3/00
CPC分类号： G10K15/12
摘要： An impulse response processing apparatus is composed of a waveform divider, a time adjuster, an interpolation processor and a waveform synthesizer. The waveform divider divides an impulse response into a plurality of base blocks on a time axis. The time adjuster increases a time difference between two adjacent ones of the plurality of the base blocks. The interpolation processor generates an interpolation block. The waveform synthesizer generates a new impulse response by arranging the interpolation block between the two adjacent base blocks generated through adjustment of the time adjuster.
摘要翻译：脉冲响应处理装置由波形分频器，时间调节器，内插处理器和波形合成器构成。波形分配器在时间轴上将脉冲响应划分成多个基块。时间调整器增加了多个基本块中的两个相邻块之间的时间差。内插处理器生成内插块。波形合成器通过在通过调整时间调节器产生的两个相邻基本块之间布置插值块来产生新的脉冲响应。

4. 发明授权

US08351615B2 Impulse response processing device, reverberation applying device and program 有权
标题翻译：脉冲响应处理装置，混响应用装置和程序
公开(公告)号：US08351615B2
公开(公告)日：2013-01-08
申请号：US12509324
申请日：2009-07-24
申请人： Futoshi Shirakihara
发明人： Futoshi Shirakihara
IPC分类号： H03G3/00
CPC分类号： G10K15/12
摘要： In an impulse response processing device, a waveform dividing part divides a waveform of an original impulse response into a plurality of blocks on a time axis. A time adjusting part performs a time adjustment to reduce a time difference between successive ones of the blocks. A waveform synthesizing part generates a waveform of a new impulse response by adding the blocks on the time axis after the time adjustment by the time adjusting part. Further, a windowing part performs a windowing process to multiply each block by a window function having a window width corresponding to a width of the block, a function value of the window function decreasing from a center to both ends of the block. The waveform synthesizing part generates the new impulse response using the blocks after the windowing process by the windowing part.
摘要翻译：在脉冲响应处理装置中，波形分割部将时间轴上的原始脉冲响应的波形划分为多个块。时间调整部件执行时间调整以减少连续的块之间的时间差。波形合成部分通过在时间调整部分进行时间调整之后的时间轴上添加块来产生新的脉冲响应的波形。此外，窗口部分执行窗口化处理，以使每个块乘以具有对应于块的宽度的窗口宽度的窗口函数，窗函数的函数值从块的中心向两端递减。波形合成部件通过加窗部分的加窗处理之后的块生成新的脉冲响应。

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