利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

74 条记录 (耗时 0.032 秒)

    ESTIMATING A PITCH LAG
    11.
    发明申请
    ESTIMATING A PITCH LAG 有权
    估计一个PITCH LAG

    公开(公告)号：US20120072209A1

    公开(公告)日：2012-03-22

    申请号：US13228136

    申请日：2011-09-08

    申请人： Venkatesh Krishnan ,  Stephane Pierre Villette

    发明人： Venkatesh Krishnan ,  Stephane Pierre Villette

    IPC分类号： G10L11/04

    CPC分类号： G10L25/90 ,  G10L19/097

    摘要： An electronic device for estimating a pitch lag is described. The electronic device includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a current frame. The electronic device also obtains a residual signal based on the current frame. The electronic device additionally determines a set of peak locations based on the residual signal. Furthermore, the electronic device obtains a set of pitch lag candidates based on the set of peak locations. The electronic device also estimates a pitch lag based on the set of pitch lag candidates.

    摘要翻译： 描述用于估计音调滞后的电子设备。 电子设备包括处理器和存储在与处理器电子通信的存储器中的可执行指令。 电子设备获得当前帧。 电子设备还根据当前帧获得残留信号。 电子设备还基于残余信号另外确定一组峰值位置。 此外，电子设备基于该组峰值位置获得一组音调滞后候选。 电子设备还基于音调滞后候选的集合来估计音调滞后。

    SYSTEMS, METHODS, AND APPARATUS FOR FRAME ERASURE RECOVERY
    13.
    发明申请
    SYSTEMS, METHODS, AND APPARATUS FOR FRAME ERASURE RECOVERY 有权
    用于框架擦除恢复的系统，方法和装置

    公开(公告)号：US20080086302A1

    公开(公告)日：2008-04-10

    申请号：US11868351

    申请日：2007-10-05

    申请人： Venkatesh Krishnan ,  Ananthapadmanbhan A. Kandhadai

    发明人： Venkatesh Krishnan ,  Ananthapadmanbhan A. Kandhadai

    IPC分类号： G10L19/14

    CPC分类号： G10L19/005

    摘要： In one configuration, erasure of a significant frame of a sustained voiced segment is detected. An adaptive codebook gain value for the erased frame is calculated based on the preceding frame. If the calculated value is less than (alternatively, not greater than) a threshold value, a higher adaptive codebook gain value is used for the erased frame. The higher value may be derived from the calculated value or selected from among one or more predefined values.

    摘要翻译： 在一种配置中，检测到持续浊音段的有效帧的擦除。 基于前一帧计算已擦除帧的自适应码本增益值。 如果计算值小于（或者不大于）阈值，则较高的自适应码本增益值被用于被擦除的帧。 较高的值可以从计算值导出或从一个或多个预定义值中选择。

    Energy based split vector quantizer employing signal representation in multiple transform domains
    14.
    发明授权
    Energy based split vector quantizer employing signal representation in multiple transform domains 有权
    基于能量的分割矢量量化器在多个变换域中采用信号表示

    公开(公告)号：US07310598B1

    公开(公告)日：2007-12-18

    申请号：US10412093

    申请日：2003-04-11

    申请人： Wasfy Mikhael ,  Venkatesh Krishnan

    发明人： Wasfy Mikhael ,  Venkatesh Krishnan

    IPC分类号： G10L19/00

    CPC分类号： G10L19/038 ,  G10L2019/0005

    摘要： The invention relates to representation of one and multidimensional signal vectors in multiple nonorthogonal domains and design of Vector Quantizers that can be chosen among these representations. There is presented a Vector Quantization technique in multiple nonorthogonal domains for both waveform and model based signal characterization. An iterative codebook accuracy enhancement algorithm, applicable to both waveform and model based Vector Quantization in multiple nonorthogonal domains, which yields further improvement in signal coding performance, is disclosed. Further, Vector Quantization in multiple nonorthogonal domains is applied to speech and exhibits clear performance improvements of reconstruction quality for the same bit rate compared to existing single domain Vector Quantization techniques. The technique disclosed herein can be easily extended to several other one and multidimensional signal classes.

    摘要翻译： 本发明涉及多个非正交域中的一维和多维信号向量的表示以及可在这些表示中选择的向量量化器的设计。 在多个非正交域中呈现了矢量量化技术，用于基于波形和模型的信号表征。 公开了一种迭代码本精度增强算法，适用于多个非正交域中的基于波形和模型的矢量量化，其产生信号编码性能的进一步改善。 此外，与现有的单域矢量量化技术相比，在多个非正交域中的矢量量化被应用于语音并且对于相同的比特率显示出重建质量的明显的性能改进。 本文公开的技术可以容易地扩展到几个其他一维和多维信号类。

    Distributed arithmetic adaptive filter and method
    15.
    发明申请
    Distributed arithmetic adaptive filter and method 审中-公开
    分布式算术自适应滤波器和方法

    公开(公告)号：US20050201457A1

    公开(公告)日：2005-09-15

    申请号：US11076741

    申请日：2005-03-10

    申请人： Daniel Allred ,  David Anderson ,  Walter Huang ,  Venkatesh Krishnan ,  Heejong Yoo

    发明人： Daniel Allred ,  David Anderson ,  Walter Huang ,  Venkatesh Krishnan ,  Heejong Yoo

    IPC分类号： H03K5/159

    CPC分类号： H03H21/0012

    摘要： Systems and methods for very high throughput adaptive filtering using distributed arithmetic are disclosed. One distributed arithmetic adaptive filter may include a memory for storing a first and second lookup table. The first lookup table may include 2K filter weights addressed by the rightmost bits of each of K signal samples stored in a plurality of registers. The filter may include a controller configured to update the second lookup table with each possible combination of the sums of the K most recent input samples and update each of the 2K filter weights of the first lookup table based on the combination of the sums of the K most recent input samples stored in the second lookup table. The second lookup-table may be updated during a filtering operation that uses the first lookup-table. One filter may include a plurality of sub-filters with each sub-filter having first and second lookup tables.

    摘要翻译： 公开了使用分布式算术进行非常高吞吐量自适应滤波的系统和方法。 一个分布式算术自适应滤波器可以包括用于存储第一和第二查找表的存储器。 第一查找表可以包括由存储在多个寄存器中的K个信号样本中的每一个的最右边比特寻址的2K个滤波器权重。 滤波器可以包括控制器，其被配置为利用K个最新输入样本的和的每个可能的组合来更新第二查找表，并且基于以下来更新第一查找表的两个滤波器权重中的每一个： 存储在第二查找表中的K个最新输入样本的总和的组合。 可以在使用第一查找表的过滤操作期间更新第二查找表。 一个滤波器可以包括多个子滤波器，每个子滤波器具有第一和第二查找表。

    Systems, methods, apparatus, and computer-readable media for dynamic bit allocation
    17.
    发明授权
    Systems, methods, apparatus, and computer-readable media for dynamic bit allocation 有权
    用于动态位分配的系统，方法，设备和计算机可读介质

    公开(公告)号：US09236063B2

    公开(公告)日：2016-01-12

    申请号：US13193529

    申请日：2011-07-28

    申请人： Ethan Robert Duni ,  Venkatesh Krishnan ,  Vivek Rajendran

    发明人： Ethan Robert Duni ,  Venkatesh Krishnan ,  Vivek Rajendran

    IPC分类号： G10L25/90 ,  G10L19/038 ,  G10L19/093

    CPC分类号： G10L25/90 ,  G10L19/038 ,  G10L19/093

    摘要： A method of bit allocation is described. The method includes, for each among a plurality of vectors, calculating a corresponding one of a plurality of gain factors. The method also includes, for each among the plurality of vectors, calculating a corresponding bit allocation that is based on the gain factor. The method further includes, for at least one among the plurality of vectors, determining that the corresponding bit allocation is not greater than a minimum allocation value. The method additionally includes, in response to the determining, for each of the at least one vector, changing the corresponding bit allocation.

    摘要翻译： 描述了一种比特分配的方法。 对于多个向量中的每一个，该方法包括计算多个增益因子中的相应一个。 对于多个向量中的每一个，该方法还包括基于增益因子来计算相应的比特分配。 该方法还包括对于多个向量中的至少一个，确定相应的比特分配不大于最小分配值。 该方法还响应于确定对于至少一个向量中的每一个，改变相应的比特分配。

    Logic-based sliding door interlock
    18.
    发明授权
    Logic-based sliding door interlock 有权
    基于逻辑的滑动门互锁

    公开(公告)号：US09080354B2

    公开(公告)日：2015-07-14

    申请号：US13160650

    申请日：2011-06-15

    申请人： Venkatesh Krishnan

    发明人： Venkatesh Krishnan

    IPC分类号： E05B83/40 ,  E05B83/34 ,  E05B81/70 ,  E05B77/26 ,  E05B81/16

    CPC分类号： F02D29/02 ,  E05B77/26 ,  E05B81/16 ,  E05B81/70 ,  E05B83/34 ,  E05B83/40 ,  F02D2200/50

    摘要： A fuel door and a sliding door are on the same side of a vehicle. The sliding door has power locking and power child locking. To prevent the sliding door from interfering with the fuel door during refueling, a lock controller responds to the fuel door moving to the open position by 1) preserving a current outside locked or unlocked state and a current inside locked or unlocked state of the sliding door, 2) initiating or maintaining the outside locked state and inside locked state, and 3) after the fuel door moving to the closed position, restoring or maintaining the preserved current outside locked or unlocked state and the preserved current inside locked or unlocked state.

    摘要翻译： 燃油门和滑动门位于车辆的同一侧。 滑动门具有电源锁定和电源锁定功能。 为了防止在加油期间滑动门与燃料门干扰，锁定控制器响应于运动到打开位置的燃料门1）保持当前的外部锁定或解锁状态以及滑动门的当前内部锁定或解锁状态 ，2）启动或维持外部锁定状态和内部锁定状态，以及3）在燃料门移动到关闭位置之后，恢复或保持保持电流在锁定或解锁状态之外，保持电流处于锁定或解锁状态。

    Passive entry system for automotive vehicle doors
    19.
    发明授权
    Passive entry system for automotive vehicle doors 有权
    汽车门被动进入系统

    公开(公告)号：US08451087B2

    公开(公告)日：2013-05-28

    申请号：US11964028

    申请日：2007-12-25

    申请人： Venkatesh Krishnan ,  James Joseph Loschiavo ,  Kosta Papanikolaou

    发明人： Venkatesh Krishnan ,  James Joseph Loschiavo ,  Kosta Papanikolaou

    IPC分类号： G05B19/00 ,  E05C3/16

    CPC分类号： B60J5/04 ,  B60R25/00 ,  B60R25/2036 ,  E05B81/78 ,  Y10T70/5889 ,  Y10T292/1047 ,  Y10T292/1053 ,  Y10T292/1054 ,  Y10T292/1055 ,  Y10T292/1057 ,  Y10T292/1059

    摘要： A passive entry system for an vehicle door requires no active operator input to gain entrance to the vehicle. A door module recognizes the signal transmitted by an authorized key fob to identify the operator of the vehicle. The authentication of the operator coupled with the operator touching a sensor on the door to be opened actuates a release actuator that unlatches the selected door. The spring-load provided by the door seal will pop the door open from the closed position. A key cylinder, which can be located substantially anywhere on the door, is coupled mechanically to the release latch for use if the battery is weak and cannot activate the release actuator. An LED signals the state of the opening sequence for the door. The fixed door handle can incorporate a membrane switch or a capacitive sensor to indicate the selection of the door by the operator when touched.

    摘要翻译： 用于车门的被动进入系统不需要有效的操作员输入来进入车辆。 门模块识别由授权密钥卡发送的信号以识别车辆的操作者。 操作者的身份认证与操作者接触要打开的门上的传感器，致动释放致动器，该释放致动器使所选择的门解锁。 门密封提供的弹簧载荷将从关闭位置弹开门。 如果电池较弱并且不能激活释放致动器，则可以大致位于门上的任何位置处的钥匙筒机械地联接到释放闩锁以供使用。 LED指示门的打开顺序的状态。 固定门把手可以包括薄膜开关或电容式传感器，以指示操作者在触摸时选择门。