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1. 发明申请

US20070299571A1 System and Method of Vehicular Wireless Communication 有权
标题翻译：车载无线通信系统与方法
公开(公告)号：US20070299571A1
公开(公告)日：2007-12-27
申请号：US11718832
申请日：2005-11-08
申请人： Kenneth Laberteaux , Tony Mak , Raja Sengupta
发明人： Kenneth Laberteaux , Tony Mak , Raja Sengupta
IPC分类号： G05D1/00
CPC分类号： G08G1/096716 , G08G1/096783 , H04W74/02
摘要： A system and method of vehicular wireless communication over a Dedicated Short Range Communication service band is provided. The system includes a vehicle having a navigation means, a processor, and a communication means for transmitting a message via a wireless communications link. The system includes a control channel for communication a safety communication and a service channel for communicating a non-safety communication. The control channel is subdivided into a contention-free period having a safety exchange interval of time for transmitting a safety communication and a contention period having a non-safety service interval of time for transmitting a non-safety communication. The system further includes an access point in communication with the vehicle via the communications link within region. The method includes the steps of determining if the vehicle is within communications range of the region, determining if the vehicle is registered with the access point, and if the vehicle is within the communications range of access point, determining if a current time is within the safety exchange interval, and transmitting the safety communication by each registered vehicle during the safety exchange interval at the predetermined time for each registered vehicle. The method further includes the steps of determining if the safety communication exchange by every registered vehicle is completed, and permitting the vehicle to leave the control channel if the safety communication exchange is complete, and determining if a current time is within a contention period, and transmitting the non-safety communication if the current time is within the contention period.
摘要翻译：提供了一种专用短距离通信服务频带上的车载无线通信系统和方法。该系统包括具有导航装置，处理器和通过无线通信链路发送消息的通信装置的车辆。该系统包括用于通信安全通信的控制信道和用于传送非安全通信的服务信道。控制信道被细分为具有用于发送安全通信的安全交换间隔时间的无竞争时段，以及具有用于发送非安全通信的非安全服务间隔时间的争用时段。该系统还包括通过区域内的通信链路与车辆通信的接入点。该方法包括以下步骤：确定车辆是否在该区域的通信范围内，确定车辆是否已经与接入点一起登记，以及如果车辆在接入点的通信范围内，则确定当前时间是否在在每个注册车辆的预定时间内在安全交换间隔期间，由每个注册车辆发送安全通信。该方法还包括以下步骤：确定每个注册车辆的安全通信交换是否完成，并且如果安全通信交换完成则允许车辆离开控制信道，并且确定当前时间是否在竞争期内，以及如果当前时间在争用期内，则发送非安全通信。

2. 发明申请

US20060140393A1 Echo canceller employing dual-H architecture having improved non-linear echo path detection 有权
公开(公告)号：US20060140393A1
公开(公告)日：2006-06-29
申请号：US11361802
申请日：2006-02-23
申请人： Kenneth Laberteaux
发明人： Kenneth Laberteaux
IPC分类号： H04M9/08
CPC分类号： H04B3/234 , H04M9/082
摘要： An echo canceller circuit for use in an echo canceller system is set forth that provides sensitive non-linear echo path response detection. The echo canceller circuit comprises a first digital filter having non-adaptive tap coefficients to simulate an echo response occurring during a call. A second digital filter having adaptive tap coefficients to simulate an echo response occurring during the call is also used. The adaptive tap coefficients of the second digital filter are updated over the duration of the call. A coefficient transfer controller is disposed in the echo canceller circuit to transfer the adaptive tap coefficients of the second digital filter to replace the tap coefficients of the first digital filter when a set of one or more transfer conditions is met. A non-linear echo path response detector is provided. The non-linear echo path detector is responsive to one or more parameters of the first and second digital filters to detect a non-linear echo path condition. In accordance with one embodiment of the present invention, the non-linear echo path detector is responsive to a transfer density value corresponding to a number of transfers executed by the coefficient transfer controller. In accordance with a further embodiment of the present invention, the non-linear echo path detector is responsive to a coefficient time dispersion characteristic of the second digital filter for detecting a non-linear echo path condition.

3. 发明申请

US20060259580A1 System and method for subscription-based content distribution to vehicles via wireless communication 有权
标题翻译：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：US20060259580A1
公开(公告)日：2006-11-16
申请号：US11430114
申请日：2006-05-08
申请人： Kenneth Laberteaux , Dmitri Dolgov
发明人： Kenneth Laberteaux , Dmitri Dolgov
IPC分类号： G06F15/16
CPC分类号： H04L67/06 , H04L67/04 , H04L67/12 , H04L67/306
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.
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，并且从用户订阅确定的来自内容供应商的可用内容使用无线通信链路传送给用户。

4. 发明申请

US20060115077A1 Echo canceller employing dual-H architecture having variable adaptive gain settings 审中-公开
公开(公告)号：US20060115077A1
公开(公告)日：2006-06-01
申请号：US11329597
申请日：2006-01-10
申请人： Kenneth Laberteaux , Richard Younce , Bruce Dunne , David Farrell
发明人： Kenneth Laberteaux , Richard Younce , Bruce Dunne , David Farrell
IPC分类号： H04M9/08
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.

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