专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US4649505A Two-input crosstalk-resistant adaptive noise canceller 失效
标题翻译：双输入抗串扰自适应噪声消除器
公开(公告)号：US4649505A
公开(公告)日：1987-03-10
申请号：US627251
申请日：1984-07-02
申请人： Richard L. Zinser, Jr. , Seth D. Silverstein , Steven R. Koch
发明人： Richard L. Zinser, Jr. , Seth D. Silverstein , Steven R. Koch
IPC分类号： G10K11/178 , G10L21/02 , H03H21/00 , H03K5/159 , G06F7/38 , H04B3/20
CPC分类号： H03H21/00 , G10K11/1784 , G10K2210/108 , G10K2210/3012 , G10K2210/505 , G10L2021/02165 , G10L21/0208
摘要： A two-input crosstalk-resistant adaptive noise canceller receives a primary input signal including a desired speech signal portion and an undesired noise signal portion and also receives a reference input signal having a reference noise input portion and a crosstalk speech portion. The canceller has first and second summer means and first and second adaptive filter means. The first summer means provides a canceller output signal which is the difference between the primary input signal and the first adaptive filter output signal. The canceller output signal is applied to the reference input of the second adaptive filter and to one of a pair of error-control inputs of the first adaptive filter. The second error-control input of the first adaptive filter is provided by the signal at the output of the second adaptive filter, which receives a single error-control input signal from the output of the second summer means. The second summer provides an output signal which is the difference between the reference input signal and the second adapter filter output signal. With the correlation bias between the desired primary input (speech) signal and the crosstalk (speech) signal in the reference input substantially reduced, the canceller output signal is then related substantially only to the primary input desired signal.
摘要翻译：双输入抗串扰自适应噪声消除器接收包括期望的语音信号部分和不期望的噪声信号部分的主要输入信号，并且还接收具有参考噪声输入部分和串扰语音部分的参考输入信号。消除器具有第一和第二夏季装置以及第一和第二自适应滤波器装置。第一个夏季装置提供一个消除器输出信号，它是主要输入信号和第一个自适应滤波器输出信号之间的差值。消除器输出信号被施加到第二自适应滤波器的参考输入和第一自适应滤波器的一对误差控制输入中的一个。第一自适应滤波器的第二误差控制输入由第二自适应滤波器的输出处的信号提供，第二自适应滤波器的输出从第二加法装置的输出接收单个误差控制输入信号。第二个夏天提供输出信号，它是参考输入信号和第二适配器滤波器输出信号之间的差值。由于所需的主输入（语音）信号和参考输入中的串扰（语音）信号之间的相关偏差大大降低，所以消除器输出信号然后基本上仅与主要输入的期望信号相关。

12. 发明授权

US4715030A Local area network bridge 失效
标题翻译：局域网桥
公开(公告)号：US4715030A
公开(公告)日：1987-12-22
申请号：US892618
申请日：1986-08-04
申请人： Steven R. Koch , Charles R. Stein , William T. Hatfield , Neil R. Shapiro , William C. Hughes
发明人： Steven R. Koch , Charles R. Stein , William T. Hatfield , Neil R. Shapiro , William C. Hughes
IPC分类号： G06F13/38 , H04L12/46 , H01J3/02
CPC分类号： G06F13/387 , H04L12/4625 , H04L45/745
摘要： Apparatus for bridging between two local area networks is disclosed. The apparatus has two bridge sides each including means for receiving or transmitting a message frame, controller means for directing an incoming message frame into a memory means shared between the bridge sides or directing a frame out of the memory means for transmission, address reading means for reading an address portion of the incoming frame and processor means for determining frame transmissibility from the address portion as provided by the address reading means. The apparatus is configured such that the processor means determines incoming frame transmissibility substantially concurrent with the controller means directing the incoming frame into the memory means.
摘要翻译：公开了用于在两个局域网之间桥接的装置。该装置具有两个桥接端，每个端口包括用于接收或发送消息帧的装置，用于将输入消息帧引导到在桥接侧之间共享的存储装置或将帧引导出存储装置进行传输的控制器装置，用于读取输入帧的地址部分和处理器装置，用于根据地址读取装置提供的来自地址部分的帧传输率。该装置被配置为使得处理器装置确定进入的帧传输率与控制器装置大致同时地将输入帧引导到存储装置中。

13. 发明授权

US06641219B2 Reduced cost head restraint support tube to improve system function 失效
标题翻译：降低成本头枕支撑管，提高系统功能
公开(公告)号：US06641219B2
公开(公告)日：2003-11-04
申请号：US10025440
申请日：2001-12-18
申请人： Paul E. Meshke , Steven R. Koch , Alan Joseph Radue
发明人： Paul E. Meshke , Steven R. Koch , Alan Joseph Radue
IPC分类号： A47C110
CPC分类号： B60N2/809 , B60N2/897
摘要： An improvement in an apparatus used to retain a plastic guide that guides the post of a vehicle head restraint during vertical adjustment. The improved head restraint support tube formed from a flat sheet having two interlocking sides. The sheet formed into a tubular body that retains a plastic guide. The plastic guide used to guide the head restraint post within the hollow tube. The tubular body further having a necked down region with a smaller inner diameter when compared to the remainder of the tube to improve its retaining capability. Additionally, the improved head restraint support tube has a series of lances located at one or both ends to further retain the plastic guide and reduce lateral movement.
摘要翻译：用于保持在垂直调节期间引导车辆头部保护装置的柱的塑料引导件的装置的改进。改进的头枕支撑管由具有两个互锁侧面的平板形成。该片形成为保持塑料引导件的管状体。塑料导轨用于引导中空管内的头枕柱。当与管的其余部分相比时，管状体还具有具有较小内径的颈缩区域以改善其保持能力。此外，改进的头枕支撑管具有位于一端或两端的一系列矛杆，以进一步保持塑料引导件并减少横向运动。

14. 发明授权

US4737953A Local area network bridge 失效
标题翻译：局域网桥
公开(公告)号：US4737953A
公开(公告)日：1988-04-12
申请号：US892601
申请日：1986-08-04
申请人： Steven R. Koch , Charles R. Stein , William T. Hatfield , Neil R. Shapiro , William C. Hughes
发明人： Steven R. Koch , Charles R. Stein , William T. Hatfield , Neil R. Shapiro , William C. Hughes
IPC分类号： H04L12/46 , H04J3/26
CPC分类号： H04L45/742 , H04L12/4625
摘要： A method for operating a communication network bridge is disclosed. The bridge receives a message frame from a first network connected thereto and reads the source and destination addresses of the received frame. The bridge determines if the addresses are contained in a source address table maintained thereby and if both addresses are present, discards the frame. The bridge transmits the frame to a second network connected thereto if the source address is not in the table or if the source address but not the destination address is in the table.
摘要翻译：公开了一种用于操作通信网桥的方法。桥接器从连接到其的第一网络接收消息帧，并读取接收到的帧的源和目的地址。桥接器确定地址是否包含在由此维护的源地址表中，并且如果两个地址都存在，则丢弃该帧。如果源地址不在表中，或者源地址而不是目的地址在该表中，则桥将帧发送到连接到其的第二网络。

15. 发明授权

US5127053A Low-complexity method for improving the performance of autocorrelation-based pitch detectors 失效
标题翻译：用于提高基于自相关的音调检测器的性能的低复杂度方法
公开(公告)号：US5127053A
公开(公告)日：1992-06-30
申请号：US632552
申请日：1990-12-24
申请人： Steven R. Koch
发明人： Steven R. Koch
IPC分类号： G10L11/04 , G10L11/06 , G10L19/00
CPC分类号： G10L25/90 , G10L19/09 , G10L25/06 , G10L25/09 , G10L25/93
摘要： A method of operating an autocorrelation pitch detector for use in a vocoder overcomes the pitch doubling and tripling problem using a heuristic rather than an analytic approach. The process tracks the times of occurrence of a highest and a second-highest autocorrelation peak. The amplitudes of the highest and the second-highest autocorrelation peaks are compared and, when these peaks are within a predetermined percentage difference in amplitude, the ratio of the time position (IPITCH2) of the second-highest peak to the time position (IPITCH) of the highest peak is checked to determine if that ratio is 1/3, 1/2 or 2/3, within a predetermined error limit .epsilon.. If so and if the ratio is either 1/2 or 1/3, then IPITCH is set equal to IPITCH2 as reepresentative of the pitch period while, if the ratio is 2/3, then IPITCH is divided by three in order to represent the pitch period.
摘要翻译：操作在声码器中使用的自相关音调检测器的方法使用启发式而不是分析方法来克服音调倍增和三倍的问题。该过程跟踪最高和第二高自相关峰的出现次数。比较最高和第二高自相关峰值的幅度，并且当这些峰值在振幅的预定百分比差之内时，第二高峰值的时间位置（IPITCH2）与时间位置（IPITCH）的比率检查最高峰值以确定该比率是否在预定误差极限ε内的1/31/2或2/3。如果是这样，如果比率是1/2或1/3，则将IPITCH设置为等于IPITCH2作为音调周期的重写，而如果比率是2/3，则IPITCH被除以3，以便表示音节期。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式