公开(公告)号：US5774840A

公开(公告)日：1998-06-30

申请号：US512635

申请日：1995-08-08

申请人： Shin-ichi Taumi ,  Masahiro Serizawa

发明人： Shin-ichi Taumi ,  Masahiro Serizawa

IPC分类号： G10L19/08 ,  G10L19/00 ,  G10L19/04 ,  G10L19/06 ,  G10L19/10 ,  G10L9/00

CPC分类号： G10L19/07 ,  G10L19/10

摘要： An excitation codebook 351 includes a plurality of codevectors each generated with pulse positions and amplitudes obtained by training such as to reduce the distance between the codevector and training speech data. The excitation codebook 351 further includes a plurality of sparse codevectors each generated with the pulse number, pulse positions and amplitudes obtained by training such as to reduce the distance between the codevector and training speech data, the individual codevectors having different pulse numbers.

摘要翻译： 激励码本351包括多个码矢，每个码矢由脉冲位置和通过训练得到的幅度产生，以减少码矢量和训练语音数据之间的距离。 激励码本351还包括多个稀疏码矢，每个稀疏码矢量通过训练获得的脉冲数，脉冲位置和幅度产生，以减少码矢量和训练语音数据之间的距离，具有不同脉冲数的各个码矢量。

公开(公告)号：US5761632A

公开(公告)日：1998-06-02

申请号：US857653

申请日：1997-05-16

申请人： Masahiro Serizawa

发明人： Masahiro Serizawa

IPC分类号： G10L19/00 ,  G10L19/02 ,  G10L19/04 ,  G10L3/02

CPC分类号： G10L19/04 ,  G10L19/038

摘要： A vector quantizer for a speech coder for coding speech signals at low bit rates. The vector quantizer includes an auto-correlation calculation circuit for calculating an impulse response of a weighting function for each sub-interval of an input signal vector. The vector quantizer also includes a weighted cross-correlation calculation circuit for calculating a weighted cross-correlation of the weighted input signal vector and the weighted codevector having a code length equal to that of the input signal vector. The vector quantizer further includes a weighted auto-correlation calculation circuit for calculating an auto-correlation of the weighted codevectors, by using respective auto-correlations of the impulse responses, the codevectors and the cross-correlations. A distance between the input signal vector and the codevector is calculated by using the cross-correlations of the weighted input signal vector and the weighted codevectors, and the auto-correlation of the weighted codevector, and an index of a codevector corresponding to the minimum distance is obtained by an inspection circuit.

摘要翻译： 一种用于以低比特率编码语音信号的语音编码器的矢量量化器。 矢量量化器包括自相关计算电路，用于计算输入信号矢量的每个子间隔的加权函数的脉冲响应。 矢量量化器还包括加权互相关计算电路，用于计算加权输入信号矢量和码长等于输入信号矢量的加权码矢量的加权互相关。 矢量量化器还包括加权自相关计算电路，用于通过使用脉冲响应，码矢量和互相关的各自自相关来计算加权码矢量的自相关。 通过使用加权输入信号矢量和加权码矢量的互相关以及加权码矢量的自相关和与最小距离对应的码矢量的索引来计算输入信号矢量和码矢量之间的距离 由检查电路获得。

公开(公告)号：US5751900A

公开(公告)日：1998-05-12

申请号：US579412

申请日：1995-12-27

申请人： Masahiro Serizawa

发明人： Masahiro Serizawa

IPC分类号： G10L11/04 ,  G10L19/04 ,  G10L19/08 ,  H03M7/30 ,  G10L3/02

CPC分类号： G10L19/08 ,  G10L19/09 ,  G10L2025/906 ,  G10L25/12

摘要： A pitch lag is extracted for each of a predetermined number of sub-frames. A predicted pitch lag for a pertinent sub-frame in the predetermined number of sub-frames is calculated on the basis of at least two pitch lags extracted for sub-frames other than the pertinent sub-frame or at least one pitch lag extracted for sub-frame other than the pertinent sub-frame and the preceding sub-frame by one sub-frame. A difference between the predicted pitch lag and the extracted pitch lag is then coded. Thus, an input speech signal pitch lag is coded for each sub-frame having a predetermined length.

摘要翻译： 针对预定数量的子帧中的每一个提取音调滞后。 基于为相关子帧以外的子帧提取的至少两个音调滞后或为子帧提取的至少一个音调滞后来计算预定数量的子帧中的相关子帧的预测音调滞后 帧除了相关子帧和前一子帧之外的一个子帧。 然后编码预测音调滞后和提取的音调滞后之间的差。 因此，对于具有预定长度的每个子帧，编码输入语音信号音调滞后。

公开(公告)号：US5687284A

公开(公告)日：1997-11-11

申请号：US492765

申请日：1995-06-21

申请人： Masahiro Serizawa ,  Kazunori Ozawa

发明人： Masahiro Serizawa ,  Kazunori Ozawa

IPC分类号： G10L19/08 ,  G10L19/00 ,  G10L19/04 ,  G10L19/12 ,  H03M7/30 ,  H04B14/04 ,  G10L3/02

CPC分类号： G10L19/12

摘要： In an excitation signal encoding method comprising the steps of, dividing a speech signal into a plurality of frames, dividing each of the plurality of frames into a plurality of subframes each of which has a subframe length, and generating a new excitation signal by the use of an adaptive code book comprising a plurality of adaptive code vectors and a sound source code book comprising a plurality of sound source code vectors, the generating step is carried out in a predetermined period when the predetermined period is shorter than the subframe length. The generating step is carried out by the use of the adaptive code vector that is calculated using the excitation signal generated in the former period and by the use of the sound source code vector of the present period.

摘要翻译： 在一种激励信号编码方法中，包括以下步骤：将语音信号分成多个帧，将多个帧中的每一个划分成多个子帧，每个子帧具有子帧长度，并且通过使用产生新的激励信号 包括多个自适应码矢量的自适应码本和包括多个声源码矢量的声源码本，当预定周期比子帧长度短时，在预定周期内执行生成步骤。 通过使用使用前一个周期中产生的激励信号计算的自适应码矢量和使用当前周期的声源码矢量来执行生成步骤。

公开(公告)号：US09207072B2

公开(公告)日：2015-12-08

申请号：US13883494

申请日：2011-12-02

申请人： Masahiro Serizawa

发明人： Masahiro Serizawa

IPC分类号： G06K9/00 ,  G01B11/28 ,  A01G7/00 ,  G01N21/84

CPC分类号： G01B11/285 ,  A01G7/00 ,  G01N21/84 ,  G01N2021/8466

摘要： A leaf area index measurement system includes: imaging means for capturing an image of a measurement target plant and outputting the captured image; a light source placed either on a side of the measurement target plant opposite to the imaging means or at a position of the measurement target plant; intensity calculation means for calculating an intensity of light when the light source emits light, based on the captured image output from the imaging means; and leaf area index calculation means for calculating a leaf area index, based on the intensity of light calculated by the intensity calculation means.

摘要翻译： 叶面积指标测量系统包括：用于捕获测量目标植物的图像并输出所捕获的图像的成像装置; 将光源放置在与成像装置相对的测量对象植物的一侧或测量对象植物的位置; 强度计算装置，用于根据从成像装置输出的拍摄图像计算光源发光时的光强度; 以及叶面积指标计算装置，用于根据由强度计算装置计算的光的强度来计算叶面积指数。

公开(公告)号：US07593128B2

公开(公告)日：2009-09-22

申请号：US11748449

申请日：2007-05-14

申请人： Nobuo Sekiguchi ,  Masahiro Serizawa ,  Yoshihito Osari ,  Akinobu Nishikata

发明人： Nobuo Sekiguchi ,  Masahiro Serizawa ,  Yoshihito Osari ,  Akinobu Nishikata

IPC分类号： G03G21/14 ,  H04N1/36

CPC分类号： H04N1/00931 ,  H04N1/00347 ,  H04N1/32358 ,  H04N2201/0027 ,  H04N2201/0081 ,  H04N2201/0082

摘要： There is provided a printer control apparatus which can be applied to an image forming apparatus in which a plurality of types of readers and a plurality of types of printers can be connected to a single controller, and which enable efficient transfer of image data from the reader to the printer via an image memory of the controller. The controller receives image data from a reader and temporarily stores the same in an image memory, and transmits the stored image data to a printer. The controller acquires a reader processing speed from the reader and a printer processing speed from the printer, and determines, while the image data is being written to the image memory, timing for transmitting the image data written in the memory to the printer according to a difference between the reader processing speed and the printer processing speed and a sub-scan size of the image data. The controller causes the reader to start reading an original, and transmits the written image data from the image memory to the printer in the determined timing.

摘要翻译： 提供了一种打印机控制装置，其可以应用于其中可以将多种类型的读取器和多种类型的打印机连接到单个控制器的图像形成装置，并且能够从读取器有效地传送图像数据 通过控制器的图像存储器传送到打印机。 控制器从读取器接收图像数据并将其临时存储在图像存储器中，并将所存储的图像数据发送到打印机。 控制器从读取器获取读取器处理速度并从打印机获取打印机处理速度，并且在将图像数据写入图像存储器的同时确定将根据存储器写入存储器的图像数据发送到打印机的定时 读取器处理速度和打印机处理速度之间的差异以及图像数据的副扫描尺寸。 控制器使读取器开始读取原稿，并在确定的定时将写入的图像数据从图像存储器发送到打印机。

公开(公告)号：US07380780B2

公开(公告)日：2008-06-03

申请号：US10960091

申请日：2004-10-08

申请人： Ichiro Sasaki ,  Takahiro Watanabe ,  Keita Takahashi ,  Naoto Watanabe ,  Takuya Kawamura ,  Masahiro Serizawa ,  Hitoshi Kato

发明人： Ichiro Sasaki ,  Takahiro Watanabe ,  Keita Takahashi ,  Naoto Watanabe ,  Takuya Kawamura ,  Masahiro Serizawa ,  Hitoshi Kato

IPC分类号： B65H3/44

CPC分类号： G03G15/6508 ,  B65H2402/10 ,  G03G2215/00447

摘要： A sheet supplying apparatus having a plurality of sheet decks for supplying sheets connected in series, and provided with a controller for controlling the feeding of the sheets of each sheet deck, wherein each sheet deck has a sheet stacking portion for supporting the sheets thereon, a sheet conveying path for guiding the sheets from an upstream side to a downstream side, and a joining conveying path joining the sheet conveying path for guiding the sheets from the sheet stacking portion to the sheet conveying path, wherein the sheet decks are connected in such a manner that the respective sheet conveying paths are connected thereto, and the controller judges the position of the sheet deck for supplying a sheet preceding by one the sheet supplied in predetermined order when the sheets are supplied in order from each sheet deck and controls so as to pre-feed the sheet in the predetermined order to the vicinity of the upstream side of a joining point between the sheet conveying path in the sheet deck for supplying the preceding sheet and the joining conveying path when the judged sheet deck is disposed downstream of the sheet deck for supplying the sheet in the predetermined order.

摘要翻译： 一种片材供应装置，具有多个用于提供串联连接的片材的片材片材，并且设置有用于控制每个片材片材的片材的进给的控制器，其中每个片材片材具有用于在其上支撑片材的片材堆叠部分， 用于将片材从上游侧引导到下游侧的片材输送路径，以及接合输送路径，接合片材输送路径，用于将片材从片材堆叠部分引导到片材输送路径，其中片材片材以 各片材输送路径与其连接的方式，并且当片材从每张片材层顺序供应时，控制器判断用于以预定顺序供应的片材之一提供片材的片材的位置，并且控制，以便 以预定的顺序将纸张预先进给纸张输送路径的接合点的上游侧附近 当将所述判断纸张板设置在所述纸张甲板的下游以便以预定顺序供应纸张时，用于供应前一纸张和接合输送路径的纸张板。

公开(公告)号：US07272554B2

公开(公告)日：2007-09-18

申请号：US10418202

申请日：2003-04-18

申请人： Masahiro Serizawa ,  Yoshiaki Nozawa

发明人： Masahiro Serizawa ,  Yoshiaki Nozawa

IPC分类号： G10L19/00 ,  H03M13/00

CPC分类号： G10L19/005

摘要： A speech decoding device is provided is capable of reducing degradation of speech quality caused by concealment processing performed when a loss of a packet has occurred, e.g., in speech packet communications using a VoIP (Voice over Internet Protocol) or the like. A decoding circuit decodes speech from a packet received through an input terminal and stores an internal signal in an updating buffer circuit, the internal signal produced in the decoding process and to be used in a decoding process for a subsequent packet to be subsequently received. The decoding circuit produces, based on the internal signal stored in the updating buffer circuit, concealed speech corresponding to a packet having not been received, and outputs the produced concealed speech. The internal signal is updated using the concealed speech.

摘要翻译： 提供了一种语音解码装置，其能够减少在发生分组丢失时执行的隐藏处理（例如，使用VoIP（因特网协议语音）等）的语音分组通信中引起的语音质量的劣化。 解码电路从通过输入端子接收到的分组中解码语音，并将内部信号存储在更新缓冲器电路中，在解码处理中产生的内部信号并被用于随后接收的后续分组的解码处理。 解码电路基于存储在更新缓冲器电路中的内部信号，产生与未被接收的分组对应的隐藏语音，并输出所产生的隐蔽语音。 使用隐藏的语音来更新内部信号。

公开(公告)号：US07069212B2

公开(公告)日：2006-06-27

申请号：US10496798

申请日：2003-09-11

申请人： Naoya Tanaka ,  Osamu Shimada ,  Mineo Tsushima ,  Takeshi Norimatsu ,  Kok Seng Chong ,  Kim Hann Kuah ,  Sua Hong Neo ,  Toshiyuki Nomura ,  Yuichiro Takamizawa ,  Masahiro Serizawa

发明人： Naoya Tanaka ,  Osamu Shimada ,  Mineo Tsushima ,  Takeshi Norimatsu ,  Kok Seng Chong ,  Kim Hann Kuah ,  Sua Hong Neo ,  Toshiyuki Nomura ,  Yuichiro Takamizawa ,  Masahiro Serizawa

IPC分类号： G10L21/02

CPC分类号： G10L21/038 ,  G10L19/0204

摘要： An audio decoding apparatus decodes high frequency component signals using a band expander that generates multiple high frequency subband signals from low frequency subband signals divided into multiple subbands and transmitted high frequency encoded information. The apparatus is provided with an aliasing detector and an aliasing remover. The aliasing detector detects the degree of occurrence of aliasing components in the multiple high frequency subband signals generated by the band expander. The aliasing remover suppresses aliasing components in the high frequency subband signals by adjusting the gain used to generate the high frequency subband signals. Thus occurrence of aliasing can be suppressed and the resulting degradation in sound quality can be reduced, even when real-valued subband signals are used in order to reduce the number of operations.

摘要翻译： 音频解码装置利用频带扩展器对高频分量信号进行解码，频带扩展器从分割成多个子带的低频子带信号和发送的高频编码信息生成多个高频子带信号。 该装置设置有混叠检测器和混叠去除器。 混叠检测器检测由频带扩展器产生的多个高频子带信号中的混叠分量的出现程度。 混叠去除器通过调整用于产生高频子带信号的增益来抑制高频子带信号中的混叠分量。 因此，即使使用实值子带信号以减少操作次数，也可以抑制混叠的发生，并且可以降低所产生的声音质量下降。

公开(公告)号：US20050080621A1

公开(公告)日：2005-04-14

申请号：US10491894

申请日：2003-07-30

申请人： Mineo Tsushima ,  Naoya Tanaka ,  Takeshi Norimatsu ,  Kok Chong ,  Kim Kuah ,  Sua Neo ,  Toshiyuki Nomura ,  Osamu Shimada ,  Yuichiro Takamizawa ,  Masahiro Serizawa

发明人： Mineo Tsushima ,  Naoya Tanaka ,  Takeshi Norimatsu ,  Kok Chong ,  Kim Kuah ,  Sua Neo ,  Toshiyuki Nomura ,  Osamu Shimada ,  Yuichiro Takamizawa ,  Masahiro Serizawa

IPC分类号： G10L19/08 ,  H03M7/30 ,  G10L19/02

CPC分类号： G10L21/038 ,  G10L19/02

摘要： A wideband, high quality audio signal is decoded with few calculations at a low bitrate. Unwanted spectrum components accompanying sinusoidal signal injection by a synthesis subband filter built with real-value operations are suppressed by inserting a suppression signal to subbands adjacent to the subband to which the sine wave is injected. This makes it possible to inject a desired sinusoid with few calculations.

摘要翻译： 宽带，高质量的音频信号以低比特率进行少量计算解码。 通过用实数值操作构建的合成子带滤波器伴随正弦信号注入的不需要的频谱分量通过将抑制信号插入到与正弦波被注入的子带相邻的子带来被抑制。 这样可以很少的计算注入所需的正弦波。