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1.发明授权Method for generating a spectral noise weighting filter for use in a speech coder 失效用于产生用于语音编码器的频谱噪声加权滤波器的方法
公开(公告)号：US5434947A
公开(公告)日：1995-07-18
申请号：US21364
申请日：1993-02-23
CPC分类号： G10L19/12
摘要： An Rth-order filter models the frequency response of multiple filters, to provide a filter which offers the control of multiple filters without the complexity of multiple filters. The Rth-order filter can be used as a spectral noise weighting filter or a combination of a short-term predictor filter and a spectral noise weighting filter, referred to as the spectrally noise weighted synthesis filter, depending on which embodiment is employed. In general, the method models the frequency response of L Pth-order filters by a single Rth-order filter, where the order R
摘要翻译： R阶滤波器对多个滤波器的频率响应进行建模，以提供一个滤波器，可提供多个滤波器的控制，而不需要多个滤波器的复杂性。 根据使用哪个实施例，R阶滤波器可以用作频谱噪声加权滤波器或短期预测器滤波器和被称为频谱噪声加权合成滤波器的频谱噪声加权滤波器的组合。 通常，该方法通过单个R阶滤波器对L P阶滤波器的频率响应建模，其中阶数R
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2.发明授权Speech coding method and apparatus using mean squared error modifier for selected speech coder parameters using VSELP techniques 失效使用VSELP技术对所选语音编码器参数使用均方误差修正器的语音编码方法和装置
公开(公告)号：US5692101A
公开(公告)日：1997-11-25
申请号：US560857
申请日：1995-11-20
CPC分类号： G10L19/12
摘要： An improved speech coder provides a more natural sounding replication of speech by modifying the mean-squared error criterion for the selected speech coder parameters. Specifically, the modification emphasizes the signal components that the speech coder has difficulty matching, i.e. the high frequencies. This emphasis is constrained to certain limitations to avoid over-emphasizing the speech.
摘要翻译： 改进的语音编码器通过修改所选择的语音编码器参数的均方误差准则来提供更自然的语音复制。 具体地，该修改强调了语音编码器难以匹配的信号分量，即高频。 这种强调被限制在某些限制，以避免过度强调言论。
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3.发明授权Method of storing reflection coeffients in a vector quantizer for a speech coder to provide reduced storage requirements 失效将反射系数存储在用于语音编码器的矢量量化器中以提供减少的存储要求的方法
公开(公告)号：US5826224A
公开(公告)日：1998-10-20
申请号：US609027
申请日：1996-02-29
IPC分类号： G10L19/06 , G10L19/083 , G10L19/135 , G10L25/06 , G10L25/24 , G10L9/14 , G10L9/08
CPC分类号： G10L19/083 , G10L19/06 , G10L19/135 , G10L25/06 , G10L25/24
摘要： An input speech signal is encoded as one or more reflection coefficients. To reduce storage requirements, the reflection coefficients are scalar quantized by storing an N-bit code rather than the entire reflection coefficient. An exemplary value for N is 8. A table is provided having 2.sup.N reflection coefficient values. The N-bit code is used to look up reflection coefficient values from the table. To reduce spectral distortion due to scalar quantization, the reflection coefficient values in the table are non-linearly scaled.
摘要翻译： 输入语音信号被编码为一个或多个反射系数。 为了减少存储要求，通过存储N位代码而不是整个反射系数来对反射系数进行标量化。 N的示例值为8.提供具有2N个反射系数值的表。 N位代码用于从表中查找反射系数值。 为了减少由于标量量化引起的频谱失真，表中的反射系数值是非线性比例的。
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4.发明授权Multi-segment vector quantizer for a speech coder suitable for use in a radiotelephone 失效适用于无线电话机的语音编码器的多段矢量量化器
公开(公告)号：US5675702A
公开(公告)日：1997-10-07
申请号：US611608
申请日：1996-03-08
IPC分类号： G10L19/06 , G10L19/083 , G10L19/135 , G10L25/06 , G10L25/24 , G10L9/08
CPC分类号： G10L19/083 , G10L19/06 , G10L19/135 , G10L25/06 , G10L25/24
摘要： A Vector-Sum Excited Linear Predictive Coding (VSELP) speech coder provides improved quality and reduced complexity over a typical speech coder. VSELP uses a codebook which has a predefined structure such that the computations required for the codebook search process can be significantly reduced. This VSELP speech coder uses single or multi-segment vector quantizer of the reflection coefficients based on a Fixed-Point-Lattice-Technique (FLAT). Additionally, this speech coder uses a pre-quantizer to reduce the vector codebook search complexity and a high-resolution scalar quantizer to reduce the amount of memory needed to store the reflection coefficient vector codebooks. Resulting in a high quality speech coder with reduced computations and storage requirements.
摘要翻译： 矢量和激励线性预测编码（VSELP）语音编码器通过典型的语音编码器提供了改进的质量和降低的复杂度。 VSELP使用具有预定义结构的码本，使得可以显着减少码本搜索处理所需的计算。 该VSELP语音编码器使用基于固定点格式技术（FLAT）的反射系数的单段或多段矢量量化器。 此外，该语音编码器使用预量化器来减少矢量码本搜索复杂度和高分辨率标量量化器，以减少存储反射系数矢量码本所需的存储量。 产生了一个高质量的语音编码器，减少了计算和存储要求。
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5.发明授权Method for generating a spectral noise weighting filter for use in a speech coder 失效用于产生用于语音编码器的频谱噪声加权滤波器的方法
公开(公告)号：US5570453A
公开(公告)日：1996-10-29
申请号：US434868
申请日：1995-05-04
CPC分类号： G10L19/12
摘要： A digital speech coding method uses an Rth-order filter to model the frequency response of multiple filters, thereby, providing a filter which offers the control of multiple filters without the complexity of multiple filters. The Rth-order filter can be used as a spectral noise weighting filter or a combination of a short-term predictor filter and a spectral noise weighting filter, referred to as the spectrally noise weighted synthesis filter, depending on which embodiment is employed. In general, the method models the frequency response of L Pth-order filters by a single Rth-order filter, where the order R
摘要翻译： 数字语音编码方法使用R阶滤波器对多个滤波器的频率响应进行建模，从而提供一个滤波器，其提供多个滤波器的控制，而不需要多个滤波器的复杂性。 根据使用哪个实施例，R阶滤波器可以用作频谱噪声加权滤波器或短期预测器滤波器和被称为频谱噪声加权合成滤波器的频谱噪声加权滤波器的组合。 通常，该方法通过单个R阶滤波器对L P阶滤波器的频率响应建模，其中阶数R
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6.发明授权Method for monitoring the position of a motor grader blade relative to a motor grader frame 有权一种用于监测电动平地机相对于自动平地机的位置的方法
公开(公告)号：US6028524A
公开(公告)日：2000-02-22
申请号：US216550
申请日：1998-12-18
CPC分类号： E02F3/845 , E02F3/7654
摘要： A system and method for monitoring the position of a motor grader blade relative to a motor grader frame. The method includes the steps of: providing an electronic controller, blade controls having position sensors, and frame controls having position sensors; monitoring the output of the position sensors to ascertain the position of the blade controls and the frame controls; receiving an input signal requesting a repositioning of the blade or the frame; determining the present blade position and the present frame position; calculating a future blade position and a future frame position based on the repositioning request; predicting an intersection of the future blade position and the future frame position; and producing an action to prevent the intersection of the future blade position and the future frame position.
摘要翻译： 一种用于监测电动平地机叶片相对于自动平地机框架的位置的系统和方法。 该方法包括以下步骤：提供电子控制器，具有位置传感器的叶片控制器和具有位置传感器的框架控制器; 监测位置传感器的输出以确定叶片控制和框架控制的位置; 接收请求重新定位所述刀片或所述框架的输入信号; 确定当前叶片位置和当前框架位置; 基于重定位请求计算未来刀片位置和未来帧位置; 预测未来刀片位置与未来框架位置的交点; 并产生防止未来刀片位置与未来框架位置相交的动作。
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7.发明授权
公开(公告)号：US6152237A
公开(公告)日：2000-11-28
申请号：US210511
申请日：1998-12-11
摘要： A method for automatically rotating a motor grader to a predetermined articulation angle. The method includes the steps of: providing an electronic controller, a displacement sensor, articulation cylinders, and an input switch; obtaining information from the displacement sensor indicating the present articulation angle of the motor grader; receiving an input signal from the input switch requesting a predetermined articulation angle; and producing a control signal for actuating the articulation cylinders to rotate the motor grader from the present articulation angle to the predetermined articulation angle.
摘要翻译： 一种用于将自动分级机自动地旋转到预定的关节角度的方法。 该方法包括以下步骤：提供电子控制器，位移传感器，关节运动气缸和输入开关; 从所述位移传感器获取指示所述自动平地机当前的关节角度的信息; 从输入开关接收输入信号，请求预定的关节角度; 并且产生用于致动关节运动气缸的控制信号，以使马达分级机从当前的关节角度旋转到预定的关节角度。
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8.发明授权Method for automatically moving the blade of a motor grader from a present blade position to a mirror image position 有权将自动平地机的刀片从当前刀片位置自动移动到镜像位置的方法
公开(公告)号：US6129156A
公开(公告)日：2000-10-10
申请号：US216180
申请日：1998-12-18
申请人： Susan M. Boast , Michael I. Cline , Matthew A. Hartman , Xiaojun Zhang , Mark D. Shane , Daniel E. Shearer
发明人： Susan M. Boast , Michael I. Cline , Matthew A. Hartman , Xiaojun Zhang , Mark D. Shane , Daniel E. Shearer
摘要： A system and method for automatically moving the blade of a motor grader from a present blade position to a mirror image position. The method includes the steps of: providing an electronic controller, blade controls having position sensors, and an input switch; obtaining information from the position sensors indicating the position of the blade controls; determining the present blade position; receiving an input signal from the input switch requesting a mirror image position; calculating the mirror image position of the present blade position; and producing a control signal for actuating the blade controls to move the blade from the present blade position to the mirror image position.
摘要翻译： 一种用于将电动平地机的叶片从当前叶片位置自动移动到镜像位置的系统和方法。 该方法包括以下步骤：提供电子控制器，具有位置传感器的叶片控制器和输入开关; 从位置传感器获取指示叶片控制的位置的信息; 确定当前刀片位置; 从所述输入开关接收请求镜像位置的输入信号; 计算当前刀片位置的镜像位置; 并且产生用于致动刀片控制器以将刀片从当前刀片位置移动到镜像位置的控制信号。
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9.发明授权Method for automatically positioning the blade of a motor grader to a memory position 有权将自动平地机的叶片自动定位到记忆位置的方法公开(公告)号：US06278955B1
公开(公告)日：2001-08-21
申请号：US09208357
申请日：1998-12-10
IPC分类号： G06F1900
CPC分类号： E02F3/847
摘要： A system and method for automatically adjusting the blade of a motor grader to an operator programmed blade position. The method includes the steps of: providing an electronic controller and blade controls having position sensors; monitoring the output of the position sensors to ascertain the position of the blade controls; receiving a first input signal for setting a memory blade position; determining the memory blade position based on the output of the position sensors; receiving a second input signal for requesting the memory blade position; determining the present blade position based on the output of the position sensors; and producing a control signal for actuating the blade controls to move the blade from the present blade position to the memory blade position.
摘要翻译： 一种用于将自动平地机的叶片自动调节到操作者编程刀片位置的系统和方法。 该方法包括以下步骤：提供具有位置传感器的电子控制器和叶片控制; 监测位置传感器的输出以确定叶片控制器的位置; 接收用于设定存储刀片位置的第一输入信号; 基于所述位置传感器的输出来确定所述存储器刀片位置; 接收用于请求所述存储器刀片位置的第二输入信号; 基于所述位置传感器的输出来确定所述刀片位置; 并且产生用于致动叶片控制器以将叶片从当前叶片位置移动到存储刀片位置的控制信号。
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公开(公告)号：USH1851H
公开(公告)日：2000-06-06
申请号：US216595
申请日：1998-12-18
CPC分类号： G05G9/04788 , E02F9/2004 , G05G2009/04774 , G05G2009/04777
摘要： A dual steering system for controlling the steering of a motor grader is disclosed. The first portion of the steering system comprises a steering wheel connected through a hydraulic steering valve to hydraulic right and left steering cylinders, which are connected to the right front tire and left front tire, respectively. Rotation of the steering wheel causes rotation of the front tires. A second portion of the steering system comprises a first button and a second button that are mounted to a control lever. Actuation of the first button sends a first electrical input signal and actuation of the second button sends a second electrical input signal to an electronic control computer. The electronic control computer generates control signals in response to the electrical input signals and transmits these control signals to a plurality of electro-hydraulic actuators. Actuation of an electro-hydraulic actuator by one of the control signals leads to actuation of the right steering cylinder and the left steering cylinder thereby causing rotation of the front wheels of the grader in one of two directions. Thus, the direction of travel of a motor grader can be controlled by one of two steering systems, one of which permits an operator to maintain contact with a control lever while adjusting the steering of the motor grader.
摘要翻译： 公开了一种用于控制平地机的转向的双转向系统。 转向系统的第一部分包括通过液压转向阀连接到液压左右转向油缸的方向盘，其分别连接到右前轮胎和左前轮胎。 方向盘的旋转引起前轮胎的旋转。 转向系统的第二部分包括安装到控制杆的第一按钮和第二按钮。 第一按钮的致动发送第一电输入信号，并且第二按钮的致动将第二电输入信号发送到电子控制计算机。 电子控制计算机响应于电输入信号产生控制信号，并将这些控制信号发送到多个电动液压致动器。 通过控制信号中的一个致动电动液压致动器，导致右转向油缸和左转向油缸的致动，从而使得分级机的前轮在两个方向中的一个方向上的旋转。 因此，电动平地机的行进方向可以由两个转向系统之一来控制，其中一个转向系统允许操作员在调节自动平地机的转向的同时与控制杆保持接触。
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