-
公开(公告)号：US6118821A
公开(公告)日：2000-09-12
申请号：US080133
申请日：1998-05-15
申请人： Masaharu Matsumoto , Takashi Katayama , Masahiro Sueyoshi , Shuji Miyasaka , Takeshi Fujita , Akihisa Kawamura , Tsukuru Ishito , Eiji Otomura , Tsuyoshi Nakamura
发明人： Masaharu Matsumoto , Takashi Katayama , Masahiro Sueyoshi , Shuji Miyasaka , Takeshi Fujita , Akihisa Kawamura , Tsukuru Ishito , Eiji Otomura , Tsuyoshi Nakamura
CPC分类号： G10L21/055 , G10L19/00
摘要： A compressed code decoding device of the present invention includes: a decoding section for receiving a plurality of groups of blocks of compressed codes and decoding each of the blocks of compressed codes; a buffer section for storing decoded signals decoded by the decoding section; a reproduction time acquisition section for acquiring a reproduction time at which to reproduce a predetermined one of the blocks; an output section for externally outputting the decoded signals stored in the buffer section; a detection section for detecting that the predetermined block of compressed codes has been decoded and output via the output section; an addition section for, at a time when the detection section detects that the predetermined block has been output, adding a time required for reproducing the predetermined block to the reproduction time acquired by the reproduction time acquisition section so as to produce a synchronization time; a synchronization section for comparing the synchronization time produced by the addition section and a current time so as to determine whether the synchronization time is ahead of or behind the current time; a code discarding section for, if the synchronization section determines that the synchronization time is ahead of the current time, discarding either compressed codes of one of the blocks next to the predetermined block or compressed codes of one of the groups next to the group including the predetermined block; and a reproduction delay section for, if the synchronization section determines that the synchronization time is behind the current time, delaying output of either decoded signals of the compressed codes of one of the blocks next to the predetermined block or decoded signals of the compressed codes of one of the groups next to the group including the predetermined block.
摘要翻译： 本发明的压缩码解码装置包括：解码部分，用于接收多组压缩码块，并对每个压缩码块进行解码; 缓冲部，用于存储由解码部解码的解码信号; 再现时间获取部分，用于获取再现预定的一个块的再现时间; 输出部分，用于从存储在缓冲器部分中的外部输出解码信号; 检测部分，用于检测所述预定的压缩代码块是否经由所述输出部分被解码和输出; 一个加法部分，用于在检测部分检测到预定块已被输出时，将再现预定块所需的时间与由再现时间获取部分获得的再现时间相加以产生同步时间; 同步部分，用于比较由加法部分产生的同步时间和当前时间，以便确定同步时间是否在当前时间之前或之后; 代码丢弃部分，用于如果同步部分确定同步时间在当前时间之前，则丢弃与预定块相邻的块中的一个块的压缩代码或者包括 预定块 以及再现延迟部分，如果同步部分确定同步时间在当前时间之后，则将预定块之后的块之一的压缩码的解码信号的输出或压缩码的解码信号延迟 包括预定块的组旁边的组之一。
-
公开(公告)号：US5796845A
公开(公告)日：1998-08-18
申请号：US883276
申请日：1997-06-26
申请人： Mitsuhiko Serikawa , Ryou Tagami , Akihisa Kawamura , Masaharu Matsumoto , Mikio Oda , Hiroko Numazu
发明人： Mitsuhiko Serikawa , Ryou Tagami , Akihisa Kawamura , Masaharu Matsumoto , Mikio Oda , Hiroko Numazu
摘要： The apparatus of the invention calculates filter coefficients for controlling sound field and sound image, based on a plurality of first impulse response signals and a pair of second impulse response signals. The plurality of first impulse response signals indicate impulse responses from loudspeakers reproducing audio signals to both ears of a listener. The pair of second impulse response signals indicate impulse responses from a reference loudspeaker at a position at which a sound image is localized to both ears of the listener. The apparatus includes: a feature extracting section for receiving the pair of second impulse response signals, for extracting parameters representing features of the pair of second impulse response signals, and for outputting parameter signals; a signal adjusting section for adjusting at least one of the plurality of first impulse response signals based on the parameter signals, and for outputting a pair of third impulse response signals having the same features as the extracted features; and a coefficient calculating section for calculating the filter coefficients for controlling the sound field and sound image, based on the plurality of first impulse response signals and the pair of third impulse response signals applied from the signal adjusting means.
摘要翻译： 本发明的装置基于多个第一脉冲响应信号和一对第二脉冲响应信号来计算用于控制声场和声像的滤波器系数。 多个第一脉冲响应信号指示从再现音频信号的扬声器到听众的双耳的脉冲响应。 一对第二脉冲响应信号指示在声音图像被定位在收听者的两只耳朵的位置处的参考扬声器的脉冲响应。 该装置包括：特征提取部分，用于接收一对第二脉冲响应信号，用于提取表示该对第二脉冲响应信号的特征的参数，并用于输出参数信号; 信号调整部分，用于基于参数信号调整多个第一脉冲响应信号中的至少一个，并输出具有与提取的特征相同特征的一对第三脉冲响应信号; 以及系数计算部分，用于基于从信号调节装置施加的多个第一脉冲响应信号和一对第三脉冲响应信号，来计算用于控制声场和声像的滤波器系数。
-
公开(公告)号：US5742688A
公开(公告)日：1998-04-21
申请号：US383295
申请日：1995-02-03
申请人： Michiko Ogawa , Akihisa Kawamura , Masaharu Matsumoto , Toshihiko Date , Tadashi Tamura , Yasutoshi Nakama
发明人： Michiko Ogawa , Akihisa Kawamura , Masaharu Matsumoto , Toshihiko Date , Tadashi Tamura , Yasutoshi Nakama
CPC分类号： G10K15/02
摘要： A sound field controller of the invention reproduces a sound field which provides a distance perspective depending on a position of a sound image for a listener. The sound field controller includes: an A/D converter; a signal processing section for processing the digital signal using predetermined parameters, and generating a sound signal; an input device for inputting conditions which include a position of a sound image to be localized and a distance from a listener; a parameter controller for setting the parameters in the signal processing section so that the sound signal has characteristics in accordance with the input conditions; a D/A converter; and a reproducing unit for amplifying and reproducing the signal output from the D/A converter.
摘要翻译： 本发明的声场控制器再现根据收听者的声音图像的位置提供距离透视的声场。 声场控制器包括：A / D转换器; 信号处理部分，用于使用预定参数处理数字信号，并产生声音信号; 用于输入包括要被本地化的声像的位置和与收听者的距离的条件的输入装置; 参数控制器，用于设置信号处理部分中的参数，使得声音信号具有根据输入条件的特性; 一个D / A转换器; 以及用于放大和再现从D / A转换器输出的信号的再现单元。
-
公开(公告)号：US5442712A
公开(公告)日：1995-08-15
申请号：US113658
申请日：1993-08-31
CPC分类号： H04R3/02
摘要： A sound signal picked-up by a microphone is processed in a howl suppresser including a digital filter. A frequency analyzer performs frequency analysis of the picked-up sound signal. A howl detector detects a howl contained in the sound signal from a result of frequency analysis by the frequency analyzer. A coefficient calculator calculates coefficients to be input to the digital filter to suppress the howl according to a detection result by the howl detector, and a controller inputs the calculated coefficients to the digital filter. The howl detector judges that a maximum peak power level among power levels of the sound signal in a frequency region analyzed by the frequency analyzer is a howl component when a ratio of the maximum peak power level to a mean power level of the sound signal is larger than a predetermined threshold level, preferably for a predetermined threshold time. Also, a threshold controller is provided for controlling the threshold level and/or the threshold time so as to enhance the accuracy of the howl detection.
摘要翻译： 在包括数字滤波器的嚎叫抑制器中处理由麦克风拾取的声音信号。 频率分析仪对拾取的声音信号进行频率分析。 嚎叫检测器通过频率分析仪从频率分析的结果中检测包含在声音信号中的嚎叫。 系数计算器计算要输入到数字滤波器的系数，以根据嚎叫检测器的检测结果抑制嚎叫，并且控制器将所计算的系数输入到数字滤波器。 嚎叫检测器判断当频率分析器分析的频率区域中的声音信号的功率电平之间的最大峰值功率电平是当最大峰值功率电平与声音信号的平均功率电平的比较大时的嚎叫分量 优选地达到预定阈值水平，优选地达到预定阈值时间。 此外，提供阈值控制器用于控制阈值水平和/或阈值时间，以便提高嚎叫检测的准确度。
-
公开(公告)号：US5375188A
公开(公告)日：1994-12-20
申请号：US896044
申请日：1992-06-08
CPC分类号： G10L25/78 , G10H1/0091 , H04S7/30 , G10H2210/046 , H04S7/305
摘要： A music/voice discriminating apparatus is composed of a signal processing portion for effecting the signal processing upon input acoustic signals, a music/voice deciding portion for discriminating whether the input acoustic signals are music or voice, a first signal processing portion for optimally setting acoustic parameters for the signal processing respectively for music or voice, and a second signal processing portion for controlling the acoustic parameters of the first signal processing portion in accordance with the decision results of the music/voice deciding portion so that it may become a desirable value set in the second parameter setting portion.
摘要翻译： 音乐/语音识别装置由用于对输入的声音信号进行信号处理的信号处理部分，用于识别输入的声音信号是音乐还是语音的音乐/声音判定部分，用于最佳地设置声音的第一信号处理部分 用于分别用于音乐或语音的信号处理的参数，以及第二信号处理部分，用于根据音乐/声音决定部分的判定结果来控制第一信号处理部分的声学参数，使得它可以成为期望的值集合 在第二参数设置部分中。
-
公开(公告)号：US5233661A
公开(公告)日：1993-08-03
申请号：US687695
申请日：1991-04-19
摘要： A sound field is generated responsive to direct sound picked up by a direct-sound collecting microphone and indirect-sound picked up by an indirect-sound collecting microphone. Respective processing circuits are provided for signal processing the sound signals of the direct-sound collecting microphone and the indirect-sound collecting microphone. An adaptive filter is provided having a transfer function equal to a transfer function from a reproducing speaker to the indirect-sound collecting microphone. The output of the signal processing circuit associated with the indirect-sound collecting microphone is filtered by the adaptive filter, and the output of the adaptive filter is subtracted from the output of the indirect-sound collecting microphone. The output of the subtractor is then applied to the signal processing circuit associated with the indirect-sound collecting microphone for signal processing. The transfer function is initially set in the adaptive filter by applying an output of a signal generator thereto.
-
公开(公告)号：US5123050A
公开(公告)日：1992-06-16
申请号：US596086
申请日：1990-10-11
CPC分类号： H04S1/002 , G10K15/08 , H03G5/165 , H03H17/0264 , H04S1/007
摘要： In the process of forming the effect sound for reproducing a sound field, a down-sampling part for reducing the sampling frequency of the digital signal is disposed before the step of the digital operation which becomes the central part of the forming process, by which a large amount of operation processing is carried out at a low sampling rate. With respect to the direct sound, processing such as gain adjustment is carried out without decreasing the sampling frequency. This results in a sound field control system which permits one to realize a higher quality and natural sound field control effect without significantly increasing the amount of hardware needed.
-
公开(公告)号：US20110316996A1
公开(公告)日：2011-12-29
申请号：US13224632
申请日：2011-09-02
申请人： Kazutaka ABE , Shuji Miyasaka , Masaharu Matsumoto , Shinichi Akiyoshi , Takeshi Fujita , Shuhei Yamada
发明人： Kazutaka ABE , Shuji Miyasaka , Masaharu Matsumoto , Shinichi Akiyoshi , Takeshi Fujita , Shuhei Yamada
IPC分类号： H04N7/18
摘要： An AV system includes a camera-equipped loudspeaker provided with a camera. The camera is united with a loudspeaker body, and captures an image in a direction in which the loudspeaker body outputs a sound. The recognition unit recognizes a location of a listener from an image of the camera, and detects an orientation of the loudspeaker body relative to the listener. The sound control unit performs signal processing on a given sound signal for generating an output signal, and outputs the output signal as an acoustic signal to the loudspeaker body.
摘要翻译： AV系统包括配有相机的配有相机的扬声器。 相机与扬声器主体结合，并且沿扬声器主体输出声音的方向拍摄图像。 识别单元从相机的图像识别收听者的位置，并且检测扬声器主体相对于收听者的方向。 声音控制单元对给定的声音信号执行信号处理以产生输出信号，并将输出信号作为声学信号输出到扬声器主体。
-
公开(公告)号：US20140001725A1
公开(公告)日：2014-01-02
申请号：US14004834
申请日：2012-03-14
申请人： Masaharu Matsumoto
发明人： Masaharu Matsumoto
IPC分类号： B60G7/00
CPC分类号： B60G7/001 , B60G2206/013 , B60G2206/11 , B60G2206/722
摘要： Disclosed herein is a connecting arm for vehicles made of reliable composite materials that is light-weight, which has strength to withstand both tension and compression forces, and which can be manufactured easily and cost-effectively. The present invention includes an inwardly protruding embossed part formed on structural plate having at least a pair of metal thin plates provided to face each other. A concave part which is formed on outer side surfaces of an intermediated member is fitted onto the embossed part, so that, when torsional, tensile, or compressive forces are applied by axial members (J1 and J2) to the connecting arm for vehicles. the structural plates provide strength primarily against tensile forces. The intermediate member and external plate members are both made of plastic materials that provide strength against compressive forces, and the intermediate member and structural plates provide strength against torsional forces, respectively.
摘要翻译： 本发明公开了一种轻质量可靠的复合材料车辆用连接臂，该复合材料具有承受张力和压缩力的强度，并且可以容易且成本有效地制造。 本发明包括形成在结构板上的向内突出的压花部分，其具有设置成彼此面对的至少一对金属薄板。 形成在中间构件的外侧面上的凹部嵌合在压纹部上，使得当轴向构件（J1和J2）施加扭转，拉伸或压缩力到车辆的连接臂时。 结构板主要抵抗张力提供强度。 中间构件和外部板构件均由塑性材料制成，其提供抵抗压缩力的强度，并且中间构件和结构板分别提供抵抗扭转力的强度。
-
40.发明申请FUEL IGNITION SYSTEM, FUEL IGNITING METHOD, FUEL REFORMING SYSTEM AND FUEL REFORMING METHOD, FOR INTERNAL COMBUSTION ENGINE 失效燃油点火系统，燃油点火方法，燃油改造系统和燃油改造方法，用于内燃机公开(公告)号：US20090260592A1
公开(公告)日：2009-10-22
申请号：US12064504
申请日：2006-08-21
申请人： Yusuke Niwa , Masaharu Matsumoto
发明人： Yusuke Niwa , Masaharu Matsumoto
IPC分类号： F02B19/00
CPC分类号： F02P23/02 , F02B23/101 , F02M27/02 , F02P23/04 , Y02T10/125
摘要： A fuel ignition system for an internal combustion engine is disclosed. The fuel ignition system is adapted to allow a photocatalyst to ignite a mixture by using a light energy irradiated from a light generator. The fuel ignition system includes: a combustion chamber; the photocatalyst provided in the combustion chamber; and a light generator for flatly irradiating the light energy to the photocatalyst.
摘要翻译： 公开了一种用于内燃机的燃料点火系统。 燃料点火系统适于允许光催化剂通过使用从发光器照射的光能来点燃混合物。 燃料点火系统包括：燃烧室; 设置在燃烧室中的光催化剂; 以及用于将光能平坦地照射到光催化剂的光发生器。
-
-
-
-
-
-
-
-
-
搜索结果
65 条记录 (耗时 0.038 秒)
