公开(公告)号：US07787500B2

公开(公告)日：2010-08-31

申请号：US10927987

申请日：2004-08-27

申请人： Yoshiteru Tsuchinaga ,  Yasuji Ota ,  Masanao Suzuki ,  Takashi Makiuchi ,  Keiichi Kojima

发明人： Yoshiteru Tsuchinaga ,  Yasuji Ota ,  Masanao Suzuki ,  Takashi Makiuchi ,  Keiichi Kojima

IPC分类号： H04B7/185 ,  H04L7/02

CPC分类号： H04L47/10 ,  H04L47/22 ,  H04L47/50 ,  H04L47/564 ,  H04L65/80

摘要： In a packet receiving method and device which convert a voice packet received into a voice, a receiving packet buffer temporarily stores a voice packet received; a plurality of parameter information monitors respectively determine different buffer adjustment values for determining a buffering amount of the receiving packet buffer based on one or more pieces of parameter information obtained from the voice packet temporarily stored; a buffer adjustment value determiner determines a receiving buffer adjustment value from the plural buffer adjustment values; and a buffer controller controls the buffering amount based on the receiving buffer adjustment value.

摘要翻译： 在将接收到的语音分组转换为语音的分组接收方法和装置中，接收分组缓冲器临时存储接收的语音分组; 多个参数信息监视器分别基于从临时存储的语音分组获得的一个或多个参数信息来确定用于确定接收分组缓冲器的缓冲量的不同缓冲器调整值; 缓冲器调整值确定器从多个缓冲器调整值确定接收缓冲器调整值; 并且缓冲器控制器基于接收缓冲器调整值来控制缓冲量。

公开(公告)号：US07089179B2

公开(公告)日：2006-08-08

申请号：US09386824

申请日：1999-08-31

申请人： Yasuji Ota ,  Masanao Suzuki ,  Yoshiteru Tsuchinaga

发明人： Yasuji Ota ,  Masanao Suzuki ,  Yoshiteru Tsuchinaga

IPC分类号： G10L19/00

CPC分类号： G10L19/10 ,  G10L2019/0008

摘要： A gain unit scales a code vector Ci output from a configuration variable code book by a gain g after the positions of non-zero samples are controlled according to an index and transmission parameter p. A linear prediction synthesis filter input the multiplication result, and outputs a regenerated signal gACi. A subtracter outputs an error signal E by subtracting the regenerated signal gACi from an input signal X. A error power evaluation unit computes an error power according to an error signal E. The above described processes are performed on all code vectors Ci and gains g. The index i of the code vector Ci and the gain g with which the error power is the smallest are computed and transmitted to the decoder.

摘要翻译： 根据索引和传输参数p，在非零样本的位置被控制之后，增益单元根据增益g缩放从配置变量代码簿输出的代码矢量Ci。 线性预测合成滤波器输入乘法结果，并输出再生信号gACi。 减法器通过从输入信号X中减去再生信号gACi来输出误差信号E.误差功率评估单元根据误差信号E来计算误差功率。对所有码矢量Ci和增益g进行上述处理。 计算代码矢量Ci的索引i和误差功率最小的增益g并将其传送到解码器。

公开(公告)号：US20050238013A1

公开(公告)日：2005-10-27

申请号：US10927987

申请日：2004-08-27

申请人： Yoshiteru Tsuchinaga ,  Yasuji Ota ,  Masanao Suzuki ,  Takashi Makiuchi ,  Keiichi Kojima

发明人： Yoshiteru Tsuchinaga ,  Yasuji Ota ,  Masanao Suzuki ,  Takashi Makiuchi ,  Keiichi Kojima

IPC分类号： H04L12/70 ,  H04L12/885 ,  H04L12/56

CPC分类号： H04L47/10 ,  H04L47/22 ,  H04L47/50 ,  H04L47/564 ,  H04L65/80

摘要： In a packet receiving method and device which convert a voice packet received into a voice, a receiving packet buffer temporarily stores a voice packet received; a plurality of parameter information monitors respectively determine different buffer adjustment values for determining a buffering amount of the receiving packet buffer based on one or more pieces of parameter information obtained from the voice packet temporarily stored; a buffer adjustment value determiner determines a receiving buffer adjustment value from the plural buffer adjustment values; and a buffer controller controls the buffering amount based on the receiving buffer adjustment value.

摘要翻译： 在将接收到的语音分组转换为语音的分组接收方法和装置中，接收分组缓冲器临时存储接收的语音分组; 多个参数信息监视器分别基于从临时存储的语音分组获得的一个或多个参数信息来确定用于确定接收分组缓冲器的缓冲量的不同缓冲器调整值; 缓冲器调整值确定器从多个缓冲器调整值确定接收缓冲器调整值; 并且缓冲器控制器基于接收缓冲器调整值来控制缓冲量。

公开(公告)号：US06594626B2

公开(公告)日：2003-07-15

申请号：US10046125

申请日：2002-01-08

申请人： Masanao Suzuki ,  Yasuji Ota ,  Yoshiteru Tsuchinaga

发明人： Masanao Suzuki ,  Yasuji Ota ,  Yoshiteru Tsuchinaga

IPC分类号： G10L1904

CPC分类号： G10L19/09 ,  G10L19/04 ,  G10L19/107 ,  G10L19/18 ,  G10L2019/0008

摘要： Disclosed is a voice encoding method having a synthesis filter implemented using linear prediction coefficients obtained by dividing an input signal into frames each of a fixed length, and subjecting the input signal to linear prediction analysis in the frame units, generating a reconstructed signal by driving said synthesis filter by a periodicity signal output from an adaptive codebook and a pulsed signal output from an algebraic codebook, and performing encoding in such a manner that an error between the input signal and said reproduced signal is minimized, wherein there are provided an encoding mode 1 that uses pitch lag obtained from an input signal of a present frame and an encoding mode 2 that uses pitch lag obtained from an input signal of a past frame. Encoding is performed in encoding mode 1 and encoding mode 2, the mode in which the input signal can be encoded more precisely is decided frame by frame and encoding is carried out on the basis of the mode decided.

摘要翻译： 公开了一种语音编码方法，其具有使用通过将输入信号划分成固定长度的帧而获得的线性预测系数实现的合成滤波器，并且对输入信号进行帧单位的线性预测分析，通过驱动所述 通过从自适应码本输出的周期信号和从代数码本输出的脉冲信号的合成滤波器，并且以使输入信号和所述再现信号之间的误差最小化的方式进行编码，其中提供了编码模式1 使用从当前帧的输入信号获得的音调滞后和使用从过去帧的输入信号获得的音调滞后的编码模式2。 在编码模式1和编码模式2中执行编码，逐帧地确定输入信号可以被更精确地编码的模式，并且基于所决定的模式进行编码。

公开(公告)号：US09307950B2

公开(公告)日：2016-04-12

申请号：US13355860

申请日：2012-01-23

申请人： Masakiyo Tanaka ,  Masanao Suzuki ,  Yasuji Ota

发明人： Masakiyo Tanaka ,  Masanao Suzuki ,  Yasuji Ota

IPC分类号： A61B5/08 ,  A61B7/00 ,  A61B5/00

CPC分类号： A61B7/003 ,  A61B5/4818 ,  A61B5/7257

摘要： A sleep apnea syndrome testing apparatus includes: an analyzing unit that analyzes every unit time a sound signal resulting from a subject during sleep; a determining unit that determines whether a unit time of the sound signal includes a breath sound or a characteristic sound produced when a patient with sleep apnea syndrome recovers from an apneic state into a breathing state, and the determining unit that determines that the sleep state of the subject in the unit time is any one of “breathing restored state,” “state with breathing,” and “state without breathing;” a storage unit in which a sleep state of the subject in each unit time is stored; and a detecting unit that detects an apneic state of the subject if a history of the sleep states of the subject indicates at least a transition from the “state without breathing” to the “breathing restored state.”

摘要翻译： 睡眠呼吸暂停综合征检查装置包括：分析单元，其在睡眠期间分析由被摄体产生的声音信号的每单位时间; 确定单元，其确定所述声音信号的单位时间是否包括呼吸音或当具有睡眠呼吸暂停综合征的患者从呼吸暂停状态恢复到呼吸状态时产生的特征声音，并且所述确定单元确定所述睡眠状态 单位时间的主体是“呼吸恢复状态”，“呼吸状态”和“无呼吸状态”中的任一个，存储单位时间内的被检体的睡眠状态的存储单元; 以及检测单元，如果对象的睡眠状态的历史表示至少从“无呼吸状态”转换到“呼吸恢复状态”，则检测被检者的呼吸暂停状态。

公开(公告)号：US08558691B2

公开(公告)日：2013-10-15

申请号：US12457546

申请日：2009-06-15

申请人： Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Taro Togawa

发明人： Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Taro Togawa

IPC分类号： G08B1/08

CPC分类号： H04M11/002

摘要： A sensing apparatus which controls the detection timing of a sensor by a prescribed guidance signal includes a guidance signal analyzing unit for analyzing the prescribed guidance signal, and a sensing control unit for determining, based on the result of the detection, an effective detection period during which an output of the sensor is effective.

公开(公告)号：US07650280B2

公开(公告)日：2010-01-19

申请号：US11065416

申请日：2005-02-24

申请人： Yoshiteru Tsuchinaga ,  Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Miyuki Shirakawa

发明人： Yoshiteru Tsuchinaga ,  Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Miyuki Shirakawa

IPC分类号： G10L11/04 ,  G10L19/00

CPC分类号： G10L19/005 ,  H04L29/06027 ,  H04L65/607 ,  H04L65/80 ,  H04M7/006

摘要： In a voice packet communication system, a voice packet loss concealment device compensates for the deterioration of voice quality due to voice packet loss. In the device, a detecting section detects a loss of a voice packet and outputting information; an estimating section estimates the voice characteristics of the lost segment using a pre-loss voice packet received before the lost segment or a post-loss voice packet received after the lost segment; a pitch signal generating section generates a pitch signal having the voice characteristics; and a lost packet generating section outputs the pitch signal generated by the pitch signal generating section, with the voice characteristics estimated by the estimating section, which allows abnormal noise and feeling of mute, subjective deterioration of naturalness and continuity to be improved, and the voice packet loss concealment to be further improved.

摘要翻译： 在语音分组通信系统中，语音分组丢失隐藏装置补偿语音分组丢失导致的语音质量的恶化。 在该装置中，检测部检测出语音分组的丢失并输出信息; 估计部分使用在丢失段之前接收到的丢失前话音分组或在丢失分段之后接收到的丢失后语音分组来估计丢失分段的语音特性; 音调信号产生部分产生具有语音特征的音调信号; 并且丢失分组产生部分输出由音调信号产生部分生成的音调信号与由估计部分估计的语音特征，其允许异常噪声和静音感觉，自然性和连续性的主观恶化被改善，并且语音 丢包隐藏进一步提高。

公开(公告)号：US07606702B2

公开(公告)日：2009-10-20

申请号：US11115478

申请日：2005-04-27

申请人： Masakiyo Tanaka ,  Masanao Suzuki ,  Yasuji Ota ,  Yoshiteru Tsuchinaga

发明人： Masakiyo Tanaka ,  Masanao Suzuki ,  Yasuji Ota ,  Yoshiteru Tsuchinaga

IPC分类号： G10L21/02 ,  G10L19/06

CPC分类号： G10L19/26 ,  G10L19/12 ,  G10L21/0364 ,  G10L25/15

摘要： A code separation/decoding unit restores a vocal tract characteristic sp1 and a vocal source signal r1. A vocal tract characteristic modification unit modifies the vocal tract characteristic sp1 and outputs the modified vocal tract characteristic sp2. In this method, an emphasized vocal tract characteristic sp2 is generated to output by applying formant emphasis, using amplification ratios calculated based on estimated formants, directly to the vocal tract characteristic sp1 for instance. A signal synthesis unit synthesizes the modified vocal tract characteristic sp2 and the vocal source signal r1 to generate and output an output voice, s.

摘要翻译： 代码分离/解码单元恢复声道特征sp1和声源信号r1。 声道特征修改单元修改声道特征sp1并输出修改的声道特征sp2。 在该方法中，通过使用共振峰强调，使用基于估计的共振峰计算的放大比例，直接将声发射特征sp2产生到声带特征sp1。 信号合成单元合成修正的声道特征sp2和声源信号r1，以产生并输出输出声音。

公开(公告)号：US06078881A

公开(公告)日：2000-06-20

申请号：US33198

申请日：1998-03-02

申请人： Yasuji Ota ,  Hitoshi Matsuzawa ,  Masanao Suzuki

发明人： Yasuji Ota ,  Hitoshi Matsuzawa ,  Masanao Suzuki

IPC分类号： G10L19/08 ,  G10L19/00 ,  H03M7/30 ,  G10L101/10

CPC分类号： G10L19/08 ,  G10L2019/0007

摘要： Speech encoding using searching of a code book for a code that matches an input speech signal, and speech decoding using the code book are disclosed. A random series of code samples is stored in a buffer memory such as a ring buffer memory, and a basic vector generation unit generates basic vectors by applying an arbitrary shift to each of code series retrieved from the random series. Generation of the basic vectors may be performed according to, for example, an overlapping vector generation process. A code book generation unit extends the basic vectors contained in a basic vector unit according to a structuring process so as to produce a tree-structured delta code book. The basic vector generation unit may extend the basic vectors based on pitch parameters or a center clipping threshold.

摘要翻译： 公开了利用码本搜索与输入语音信号匹配的代码的语音编码以及使用码本的语音解码。 随机序列代码样本被存储在诸如环形缓冲存储器的缓冲存储器中，并且基本向量生成单元通过对从随机序列检索的每个代码序列应用任意移位来生成基本向量。 可以根据例如重叠矢量生成处理来进行基本矢量的生成。 码本生成单元根据结构化处理扩展基本向量单位中包含的基本向量，以生成树结构的增量代码本。 基本矢量生成单元可以基于音调参数或中心限幅阈值来扩展基本矢量。

公开(公告)号：US20130006150A1

公开(公告)日：2013-01-03

申请号：US13613258

申请日：2012-09-13

申请人： Masanao SUZUKI ,  Masakiyo TANAKA ,  Yasuji Ota

发明人： Masanao SUZUKI ,  Masakiyo TANAKA ,  Yasuji Ota

IPC分类号： A61B7/00

CPC分类号： A61B5/4818 ,  A61B5/4557 ,  A61B5/7264 ,  A61B7/003

摘要： A bruxism detection device includes: a sound collection unit that collects a sound produced from a subject and outputs a sound signal corresponding to the collected sound; a bruxism candidate detection unit that detects a period of a sound having a feature that is characteristic of bruxism, from the sound signal, as a bruxism candidate period; a breath detection unit that detects a period of a sound having a feature corresponding to a predetermined breathing state, from the sound signal, as a specific breathing period; and a determining unit that determines that the subject has bruxed, when the specific breathing period is present before or after the bruxism candidate period.

摘要翻译： 磨牙症检测装置包括：声音收集单元，其收集从被摄体产生的声音并输出与所收集的声音对应的声音信号; 作为磨牙候选周期，从声音信号中检测出具有磨牙特征的特征的声音周期; 呼吸检测单元，从声音信号中检测具有对应于预定呼吸状态的特征的声音的周期作为特定呼吸周期; 以及确定单元，其在所述磨牙症候选周期之前或之后，当特定呼吸期间存在时，确定所述受试者已经磨牙。