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    • 1. 发明授权
    • Pulse-echo ranging system
    • 脉冲回波测距系统
    • US07349291B2
    • 2008-03-25
    • US11598182
    • 2006-11-09
    • Dan BartoliGordon Li
    • Dan BartoliGordon Li
    • G01F23/284
    • G01F23/284Y10S367/903
    • A method and apparatus for controlling pulses in a pulse-echo level measurement or time-of-flight ranging system. The apparatus comprises a controller, a transducer, and an energy storage device. The energy storage device is operatively coupled to the transducer through a relay. The relay is enabled and disabled by the controller and in the disabled state the energy storage device is allowed to accumulate energy. The energy is stored in the energy storage at a variable voltage level. The controller includes a component for determining a voltage level corresponding to an acceptable confidence level for echo pulses. The controller includes another component for determining a voltage level an increased response time.
    • 一种用于控制脉冲回波电平测量或飞行时间测距系统中的脉冲的方法和装置。 该装置包括控制器,换能器和能量存储装置。 能量存储装置通过继电器可操作地耦合到换能器。 继电器由控制器启用和禁用,并且在禁用状态下,能量存储装置被允许积聚能量。 能量以可变电压电平存储在能量存储器中。 控制器包括用于确定对应于回波脉冲的可接受置信水平的电压电平的分量。 控制器包括用于确定电压电平增加的响应时间的另一部件。
    • 2. 发明申请
    • PULSE-ECHO RANGING SYSTEM
    • PULSE-ECHO测距系统
    • US20070223312A1
    • 2007-09-27
    • US11598182
    • 2006-11-09
    • Dan BartoliGordon Li
    • Dan BartoliGordon Li
    • G01S15/00
    • G01F23/284Y10S367/903
    • A method and apparatus for controlling pulses in a pulse-echo level measurement or time-of-flight ranging system. The apparatus comprises a controller, a transducer, and an energy storage device. The energy storage device is operatively coupled to the transducer through a relay. The relay is enabled and disabled by the controller and in the disabled state the energy storage device is allowed to accumulate energy. The energy is stored in the energy storage at a variable voltage level. The controller includes a component for determining a voltage level corresponding to an acceptable confidence level for echo pulses. The controller includes another component for determining a voltage level an increased response time.
    • 一种用于控制脉冲回波电平测量或飞行时间测距系统中的脉冲的方法和装置。 该装置包括控制器,换能器和能量存储装置。 能量存储装置通过继电器可操作地耦合到换能器。 继电器由控制器启用和禁用,并且在禁用状态下,能量存储装置被允许积聚能量。 能量以可变电压电平存储在能量存储器中。 控制器包括用于确定对应于回波脉冲的可接受置信水平的电压电平的分量。 控制器包括用于确定电压电平增加的响应时间的另一部件。
    • 3. 发明申请
    • Fast channel scanning and acquisition system and method for cable modem applications
    • 电缆调制解调器应用的快速通道扫描和采集系统和方法
    • US20050076385A1
    • 2005-04-07
    • US10677110
    • 2003-10-01
    • Gordon LiYoav HebronBruce GroveAdrian Kwong
    • Gordon LiYoav HebronBruce GroveAdrian Kwong
    • H04N7/173
    • H04N21/42676H04N7/17309H04N21/4383
    • A programmable channel scanning and acquisition method for a cable modem first performs a fast scan and then a slow scan to identify channels supporting cable modem services. The fast scan involves only a check of the cable modem AGC lock. A list of potentially operational channels is assembled and scanned. The list includes, in order of preference, the last known good channel, golden channels that are likely to support cable modem services, “learned” golden channels consisting of previous last known good channels, and other channels within the frequency plan range. The list omits channels on a “black list” known not to be operational and channels outside of the frequency range, except during registration. The method may be optimized by the setting of various parameters for operation in a DOCSIS or EuroDOCSIS environment.
    • 用于电缆调制解调器的可编程通道扫描和采集方法首先执行快速扫描,然后执行慢速扫描以识别支持有线调制解调器服务的信道。 快速扫描仅涉及电缆调制解调器AGC锁的检查。 组合和扫描潜在的操作通道的列表。 该列表按照优先顺序包括最后一个已知的良好频道,可能支持有线调制解调器服务的黄金频道,“学习”由前一个已知的好频道组成的黄金频道以及频率计划范围内的其他频道。 除了注册之外,该列表省略了已知无法运行的“黑名单”和频率范围以外的频道的频道。 该方法可以通过设置DOCSIS或EuroDOCSIS环境中的各种参数进行优化。
    • 4. 发明授权
    • Communication over bandwidth-constrained network
    • 通过带宽受限的网络进行通信
    • US08812740B2
    • 2014-08-19
    • US13434949
    • 2012-03-30
    • Gordon LiSherman (Xuemin) Chen
    • Gordon LiSherman (Xuemin) Chen
    • G06F15/16G06F12/00
    • H04L65/607H04L29/06H04L65/1026H04L65/605H04L65/80
    • An apparatus and a system are provided to proxy one or more media signals between at least one local client device and at least one remote client device. For instance, the apparatus can include a first network interface, a media dispatcher, and a second network interface. The first network interface can be configured to receive a single media signal of the one or more media signals from a local client device via a first communication network with an asymmetric communication protocol (e.g., Data Over Cable Service Interface Specification and Digital Subscriber Line). The media dispatcher can be configured to duplicate the single media signal into a plurality of duplicate media signals. Further, the second network interface can be configured to transmit the plurality of duplicate media signals to a plurality of remote client devices over a second communication network.
    • 提供了一种装置和系统来代理至少一个本地客户端设备和至少一个远程客户端设备之间的一个或多个媒体信号。 例如,该装置可以包括第一网络接口,媒体分派器和第二网络接口。 第一网络接口可以被配置为经由具有非对称通信协议(例如,电缆数据服务接口规范和数字用户线路)的第一通信网络从本地客户端设备接收一个或多个媒体信号的单个媒体信号。 媒体调度器可以被配置为将单个媒体信号复制成多个重复的媒体信号。 此外,第二网络接口可以被配置为通过第二通信网络将多个重复的媒体信号发送到多个远程客户端设备。