Echo canceller employing dual-H architecture having variable adaptive gain settings
    2.
    发明授权
    Echo canceller employing dual-H architecture having variable adaptive gain settings 有权
    采用具有可变自适应增益设置的双H架构的回波消除器

    公开(公告)号:US06614907B1

    公开(公告)日:2003-09-02

    申请号:US09484947

    申请日:2000-01-18

    IPC分类号: H04M100

    CPC分类号: H04M9/082 H04B3/23

    摘要: An echo canceller circuit for use in an echo canceller system is set forth that provides sensitive double-talk detection. The echo canceller circuit comprises a second digital filter having adaptive tap coefficients to stimulate an echo response occurring during the call. The adaptive tap coefficients of the second digital filter are updated over the duration of the call using a Least Mean Squares process having an adaptive gain a. A channel condition detector is used to detect channel conditions during the call. The channel condition detector is responsive to detected channel conditions for changing the adaptive gain a during the call. For example, the channel condition detector may detect the presence of a double-talk condition and set the adaptive gain a to zero. Similarly, the channel condition detector may detect the occurrence of a high background noise condition and set the adaptive gain a to a level less than 1 that is dependent on the detected level of the background noise. Other similar channel conditions and corresponding adaptive gain settings may likewise be utilized.

    摘要翻译: 提出了一种用于回波消除器系统中的回波消除电路,其提供灵敏的双向通话检测。 回波消除器电路包括具有自适应抽头系数的第二数字滤波器以刺激在呼叫期间发生的回波响应。 使用具有自适应增益a的最小均方方法,在呼叫的持续时间内更新第二数字滤波器的自适应抽头系数。 信道条件检测器用于检测呼叫期间的信道状况。 信道条件检测器响应于检测到的信道条件,用于在呼叫期间改变自适应增益a。 例如,信道条件检测器可以检测双方通话状况的存在并将自适应增益a设置为零。 类似地,信道条件检测器可以检测高背景噪声条件的发生,并将自适应增益a设置为取决于检测到的背景噪声电平的小于1的电平。 同样可以利用其他类似的信道条件和相应的自适应增益设置。

    System and method for optimizing use of a battery
    3.
    发明授权
    System and method for optimizing use of a battery 有权
    优化电池使用的系统和方法

    公开(公告)号:US08359132B2

    公开(公告)日:2013-01-22

    申请号:US12816832

    申请日:2010-06-16

    摘要: A battery optimization system and method for regulating and discharging a battery so as to optimize the use of the battery in accordance with the user's preference is provided. The battery optimization system includes a power source, a charging/discharging station connecting the battery with the power source, and a controller in communication with the charging/discharging station. The battery optimization system further includes an input operable to provide the user's preferences. The controller is also in communication with the battery and is operable to process battery and power source information along with user input to calculate an optimal charging/discharging cycle. The charging/discharging cycle is configured to charge or discharge the battery so as to optimize the use of the battery based upon the end user's preference. For instance, the calculated optimal charging/discharging cycle may be based upon the user's desire to maximize the life of the battery, or to charge the battery as inexpensively as possible.

    摘要翻译: 提供一种电池优化系统和方法,用于根据用户的喜好优化电池的使用,从而调节和放电电池。 电池优化系统包括电源,将电池与电源连接的充电/放电站以及与充电/放电站通信的控制器。 电池优化系统还包括可操作以提供用户偏好的输入。 控制器还与电池通信,并且可操作地与用户输入一起处理电池和电源信息以计算最佳充电/放电周期。 充电/放电循环被配置为对电池充电或放电,以便基于最终用户的偏好来优化电池的使用。 例如,所计算的最佳充电/放电周期可以基于用户期望使电池的寿命最大化,或者尽可能廉价地对电池充电。

    SYSTEM AND METHOD FOR OPTIMIZING USE OF A BATTERY
    4.
    发明申请
    SYSTEM AND METHOD FOR OPTIMIZING USE OF A BATTERY 有权
    优化电池使用的系统和方法

    公开(公告)号:US20110313603A1

    公开(公告)日:2011-12-22

    申请号:US12816832

    申请日:2010-06-16

    IPC分类号: H02J7/00 G06F17/00 G06F7/00

    摘要: A battery optimization system and method for regulating and discharging a battery so as to optimize the use of the battery in accordance with the user's preference is provided. The battery optimization system includes a power source, a charging/discharging station connecting the battery with the power source, and a controller in communication with the charging/discharging station. The battery optimization system further includes an input operable to provide the user's preferences. The controller is also in communication with the battery and is operable to process battery and power source information along with user input to calculate an optimal charging/discharging cycle. The charging/discharging cycle is configured to charge or discharge the battery so as to optimize the use of the battery based upon the end user's preference. For instance, the calculated optimal charging/discharging cycle may be based upon the user's desire to maximize the life of the battery, or to charge the battery as inexpensively as possible.

    摘要翻译: 提供一种电池优化系统和方法,用于根据用户的喜好优化电池的使用,从而调节和放电电池。 电池优化系统包括电源,将电池与电源连接的充电/放电站以及与充电/放电站通信的控制器。 电池优化系统还包括可操作以提供用户偏好的输入。 控制器还与电池通信,并且可操作地与用户输入一起处理电池和电源信息以计算最佳充电/放电周期。 充电/放电循环被配置为对电池充电或放电,以便基于最终用户的偏好来优化电池的使用。 例如,所计算的最佳充电/放电周期可以基于用户期望使电池的寿命最大化,或者尽可能廉价地对电池充电。

    System and method for subscription-based content distribution to vehicles via wireless communication
    5.
    发明授权
    System and method for subscription-based content distribution to vehicles via wireless communication 有权
    基于订阅的内容通过无线通信分发给车辆的系统和方法

    公开(公告)号:US07734803B2

    公开(公告)日:2010-06-08

    申请号:US11430114

    申请日:2006-05-08

    IPC分类号: G06F15/16

    摘要: Methods and systems are described for delivering content to a vehicle occupant through a wireless communications link between a wireless client associated with the vehicle and a wireless access point external to the vehicle. The wireless access point is in communication with a content supplier, and available content from the content supplier, as determined from a user subscription, is delivered to the user using the wireless communications link when the vehicle is stationary.

    摘要翻译: 描述了用于通过与车辆相关联的无线客户端与车辆外部的无线接入点之间的无线通信链路将内容传送给车辆乘客的方法和系统。 无线接入点与内容供应商通信,并且当车辆静止时,使用无线通信链路将来自用户订阅的内容供应商的可用内容传送给用户。

    System and method of collision avoidance using intelligent navigation
    6.
    发明授权
    System and method of collision avoidance using intelligent navigation 有权
    使用智能导航的碰撞避免系统和方法

    公开(公告)号:US07167799B1

    公开(公告)日:2007-01-23

    申请号:US11387414

    申请日:2006-03-23

    IPC分类号: G01C23/00 G06F19/00

    CPC分类号: G08G1/164

    摘要: A system and method of intelligent navigation with collision avoidance for a vehicle is provided. The system includes a global positioning system and a vehicle navigation means in communication with the global positioning system. The system also includes a centrally located processor in communication with the navigation means, and an information database associated with the controller, for identifying a location of a first vehicle and a second vehicle. The system further includes an alert means for transmitting an alert message to the vehicle operator regarding a collision with a second vehicle. The method includes the steps of determining a geographic location of a first vehicle and a second vehicle within an environment using the global positioning system on the first vehicle and the global positioning system on the second vehicle, and modeling a collision avoidance domain of the environment of the first vehicle as a discrete state space Markov Decision Process. The methodology scales down the model of the collision avoidance domain, and determines an optimal value function and control policy that solves the scaled down collision avoidance domain. The methodology extracts a basis function from the optimal value function, scales up the extracted basis function to represent the unscaled domain, and determines an approximate solution to the control policy by solving the rescaled domain using the scaled up basis function. The methodology further uses the solution to determine if the second vehicle may collide with the first vehicle and transmits a message to the user notification device.

    摘要翻译: 提供了一种用于车辆的防碰撞的智能导航系统和方法。 该系统包括与全球定位系统通信的全球定位系统和车辆导航装置。 该系统还包括与导航装置通信的位于中心的处理器,以及与控制器相关联的用于识别第一车辆和第二车辆的位置的信息数据库。 该系统还包括警报装置,用于向车辆操作者发送关于与第二车辆的碰撞的警报消息。 该方法包括以下步骤:使用第一车辆上的全球定位系统和第二车辆上的全球定位系统来确定环境内的第一车辆和第二车辆的地理位置,并且对环境的碰撞避免域进行建模 第一辆车作为离散状态空间马尔可夫决策过程。 该方法缩小了避碰域的模型,并确定了解决缩小碰撞避免域的最优值函数和控制策略。 该方法从最优值函数中提取出一个基函数,将提取的基函数放大以表示非扩展域,并通过使用按比例扩大的基函数求解重定标域来确定控制策略的近似解。 该方法进一步使用该解决方案来确定第二车辆是否可能与第一车辆相撞并且向用户通知装置发送消息。

    System and method of vehicular wireless communication using an integrated coordinating access point
    7.
    发明授权
    System and method of vehicular wireless communication using an integrated coordinating access point 有权
    使用综合协调接入点的车载无线通信系统和方法

    公开(公告)号:US07970540B2

    公开(公告)日:2011-06-28

    申请号:US11718865

    申请日:2005-11-08

    IPC分类号: G01C21/00

    摘要: A system and method of vehicular wireless communication over a Dedicated Short Range Communication service band. The system and method include a vehicle having a navigation system, a processor, and a communication system for transmitting a message via a wireless communications link. The system and method also include a control channel for communicating a safety communication and a service channel for communicating a non-safety communication.

    摘要翻译: 专用短程通信业务频段的车载无线通信系统及方法。 该系统和方法包括具有导航系统,处理器和用于经由无线通信链路发送消息的通信系统的车辆。 该系统和方法还包括用于传送安全通信的控制信道和用于传送非安全通信的服务信道。

    Method for distributing a list of certificate revocations in a vanet
    8.
    发明申请
    Method for distributing a list of certificate revocations in a vanet 有权
    分发证件撤销清单的方法

    公开(公告)号:US20090260057A1

    公开(公告)日:2009-10-15

    申请号:US12082589

    申请日:2008-04-11

    IPC分类号: G06F21/00

    摘要: In a vehicle-to-vehicle wireless communication system utilizing certificates to verify trustworthiness of received communications, a method for distributing a list of certificate revocations to vehicles in the communication system. At least one main station transmits a list of certificate revocations to at least one vehicle and the vehicle thereafter transmits the list of certificate revocations to other vehicles in the communication network. Each of the other vehicles in the communication network updates its list of certificate revocations in response to the receipt of the list of certificate revocations from another vehicle in the system. The other vehicles thereafter transmit their updated list of certificate revocations to other vehicles in the system.

    摘要翻译: 在利用证书来验证接收到的通信的可靠性的车对无线通信系统中,用于将证书撤销列表分发给通信系统中的车辆的方法。 至少一个主站向至少一个车辆发送证书撤销清单,然后车辆将证书撤销列表发送到通信网络中的其他车辆。 响应于从系统中的另一车辆接收到证书撤销清单,通信网络中的每个其他车辆更新其证书撤销清单。 其他车辆此后将其更新的证书撤销清单发送到系统中的其他车辆。

    Echo canceller employing dual-H architecture having split adaptive gain settings
    9.
    发明授权
    Echo canceller employing dual-H architecture having split adaptive gain settings 有权
    使用具有分离自适应增益设置的双H架构的回波消除器

    公开(公告)号:US07403610B2

    公开(公告)日:2008-07-22

    申请号:US10779830

    申请日:2004-02-17

    IPC分类号: H04M9/08

    CPC分类号: H04M9/082

    摘要: An echo canceller circuit is set forth. The echo canceller circuit includes a digital filter having adaptive tap coefficients to simulate an echo response occurring during a call. The adaptive tap coefficients are updated during the call using a Means Squares process. A tap energy detector is also employed. The tap energy detector identifies and divides groups of taps having high energy from groups of taps having low energy. The high energy tap groups are smaller in number than the low energy tap groups. The high energy tap groups are adapted separately from the low energy tap groups using the Least Squares process. Still further, the high energy tap groups may be adapted using an adaptive gain constant α while the low energy tap groups are adapted using an adaptive gain constant α′, wherein α>α′.

    摘要翻译: 提出了回声消除电路。 回波消除器电路包括具有自适应抽头系数的数字滤波器,以模拟在呼叫期间发生的回波响应。 在使用均值平方法的呼叫期间,自适应抽头系数被更新。 也采用水龙头能量检测器。 抽头能量检测器从具有低能量的抽头组识别并分割具有高能量的抽头组。 高能量抽头组的数量比低能量抽头组小。 使用最小二乘法,高能量抽头组与低能量抽头组分开调整。 此外,可以使用自适应增益常数α来适配高能量抽头组,而使用自适应增益常数α'来适应低能量抽头组,其中α>α'。

    RELEVANCY CHECK FOR VEHICLE SAFETY MESSAGES USING A PATH HISTORY
    10.
    发明申请
    RELEVANCY CHECK FOR VEHICLE SAFETY MESSAGES USING A PATH HISTORY 有权
    使用道路历史检查车辆安全信息

    公开(公告)号:US20080103697A1

    公开(公告)日:2008-05-01

    申请号:US11554084

    申请日:2006-10-30

    IPC分类号: G08G1/16

    CPC分类号: G08G1/161

    摘要: There is disclosed a method for avoiding a collision in a vehicle including the steps of: providing a transmitting vehicle, providing a receiving vehicle, creating data information in the transmitting vehicle, sending the data information to the receiving vehicle, and determining the relevancy of the data information to the receiving vehicle using a current position and heading of the receiving vehicle.

    摘要翻译: 公开了一种避免车辆碰撞的方法,包括以下步骤:提供发送车辆,提供接收车辆,在发送车辆中创建数据信息,向接收车辆发送数据信息,以及确定接收车辆的相关性 使用接收车辆的当前位置和航向对接收车辆的数据信息。