-
公开(公告)号：US20130301692A1
公开(公告)日：2013-11-14
申请号：US13886042
申请日：2013-05-02
申请人： Ben MAXSON
发明人： Ben MAXSON
IPC分类号： H04L1/24
CPC分类号： H04L1/244 , H04L5/1438
摘要： A method and test instrument for performing a ranging measurement in a DOCSIS network, uses low cost and general purpose electronics instead of a DOCSIS chipset. A downstream CATV receiver, including a CATV tuner and QAM demodulator, accepts the downstream signals from a CMTS. The output of the demodulator is an MPEG transport stream containing DOCSIS signaling messages and data packets. Software algorithms running inside a suitable general purpose processor decode the MPEG transport stream to isolate signaling messages from the data packets. The signaling messages are used to determine the appropriate format and timing of ranging request messages for the CMTS. A burst generator generates the RF return path messages to be sent to the CMTS, using previously computed waveforms.
摘要翻译： 用于在DOCSIS网络中执行测距测量的方法和测试仪器使用低成本和通用电子设备而不是DOCSIS芯片组。 包括CATV调谐器和QAM解调器的下行CATV接收器接收来自CMTS的下行信号。 解调器的输出是包含DOCSIS信令消息和数据分组的MPEG传输流。 运行在合适的通用处理器内的软件算法解码MPEG传输流，以将信令消息与数据分组隔离开来。 信令消息用于确定针对CMTS的测距请求消息的适当格式和定时。 突发发生器使用先前计算的波形生成要发送到CMTS的RF返回路径消息。
-
公开(公告)号：US08724681B2
公开(公告)日：2014-05-13
申请号：US13535129
申请日：2012-06-27
申请人： Ben Maxson , Walter Miller
发明人： Ben Maxson , Walter Miller
IPC分类号： H04B1/38
CPC分类号： H04B5/0043 , H04B5/0037 , H04B2203/5495
摘要： Ingress noise labeling tags are coupled into the signal path at various nodes of a cable network. The tags imprint a unique electric signature into a local ingress noise, making the noise identifiable at the headend of the network. In one embodiment, tags do not require external control signals to operate, the electrical response of the tags being determined by present and/or past magnitudes of the return path signal. Such tags can be made entirely passive, not requiring a control signal or an external source of electrical power.
摘要翻译： 入口噪声标签标签被耦合到有线网络的各个节点处的信号路径中。 标签将独特的电子签名印记到本地入口噪声中，使噪声可以在网络的头端识别。 在一个实施例中，标签不需要外部控制信号进行操作，标签的电响应由返回路径信号的当前和/或过去幅度确定。 这样的标签可以被完全无源，不需要控制信号或外部电源。
-
公开(公告)号：US08327409B2
公开(公告)日：2012-12-04
申请号：US12430516
申请日：2009-04-27
申请人： Ben Maxson , Koji Okamoto
发明人： Ben Maxson , Koji Okamoto
IPC分类号： H04N7/173
摘要： Use of direct sequence spread spectrum test signals injected at the same time and frequency of active network services to perform non-interfering measurements in the forward and reverse path of a CATV plant. Ideally, a plurality of transmitters, each transmitting a test signal with a unique spreading code, whereby multiple overlapping test signals are received simultaneously at the receiver (CDMA).
摘要翻译： 使用在有源网络服务的相同时间和频率处注入的直接序列扩频测试信号，以在CATV工厂的正向和反向路径中执行非干扰测量。 理想地，多个发射机，每个发送具有唯一扩展码的测试信号，由此在接收机（CDMA）处同时接收多个重叠测试信号。
-
公开(公告)号：US08154303B2
公开(公告)日：2012-04-10
申请号：US12249494
申请日：2008-10-10
申请人： Ben Maxson , Daniel K. Chappell
发明人： Ben Maxson , Daniel K. Chappell
CPC分类号： G01S19/38
摘要： Methods are disclosed for identifying and locating points of impairment in a cable plant, such as that used for cable television (CATV). The methods utilize both known characteristics of signals as well as propagation times in free space and within the cable in conjunction with accurate determination of locations at which measurements are taken. The methods can be applied to both RF cable leaks as well as points of ingress of interference.
摘要翻译： 公开了用于识别和定位电缆设备中的损伤点的方法，例如用于有线电视（CATV）的损伤点。 该方法利用信号的已知特征以及自由空间和电缆内的传播时间，并结合精确确定测量位置的方法。 这些方法可以应用于RF电缆泄漏以及干扰进入点。
-
公开(公告)号：US20090096665A1
公开(公告)日：2009-04-16
申请号：US12249494
申请日：2008-10-10
申请人： Ben Maxson , Daniel K. Chappell
发明人： Ben Maxson , Daniel K. Chappell
IPC分类号： G01S1/00
CPC分类号： G01S19/38
摘要： Methods are disclosed for identifying and locating points of impairment in a cable plant, such as that used for cable television (CATV). The methods utilize both known characteristics of signals as well as propagation times in free space and within the cable in conjunction with accurate determination of locations at which measurements are taken. The methods can be applied to both RF cable leaks as well as points of ingress of interference.
摘要翻译： 公开了用于识别和定位电缆设备中的损伤点的方法，例如用于有线电视（CATV）的损伤点。 该方法利用信号的已知特征以及自由空间和电缆内的传播时间，并结合精确确定测量位置的方法。 这些方法可以应用于RF电缆泄漏以及干扰进入点。
-
公开(公告)号：US20110314344A1
公开(公告)日：2011-12-22
申请号：US12816987
申请日：2010-06-16
申请人： Koji Okamoto , Ben Maxson
发明人： Koji Okamoto , Ben Maxson
摘要： A test device is disclosed having a display and a graphical user interface (GUI) that provides guidance to a user by displaying first and second icons for representing first and second actions to be taken by the test device upon selecting the first and the second icons, respectively, by the user. To provide the guidance to the user, the second icon has graphical features indicative of the current status of the first action. For cases where the first action is a test that failed, the second action is highlighted thereby guiding the user to take the second action in response to the failed test. At least one of the graphical features of the second icon is indicative of whether the second icon is currently selectable by the user.
摘要翻译： 公开了一种具有显示器和图形用户界面（GUI）的测试装置，其通过在选择第一和第二图标时显示用于表示测试装置要采取的第一和第二动作的第一和第二图标来向用户提供指导， 分别由用户。 为了向用户提供指导，第二图标具有指示第一动作的当前状态的图形特征。 对于第一个操作是失败测试的情况，第二个操作被突出显示，从而指导用户采取第二个动作来响应失败的测试。 第二图标的至少一个图形特征指示用户当前是否可选择第二图标。
-
公开(公告)号：US08732604B2
公开(公告)日：2014-05-20
申请号：US12816987
申请日：2010-06-16
申请人： Koji Okamoto , Ben Maxson
发明人： Koji Okamoto , Ben Maxson
IPC分类号： G06F3/0481
摘要： A test device is disclosed having a display and a graphical user interface (GUI) that provides guidance to a user by displaying first and second icons for representing first and second actions to be taken by the test device upon selecting the first and the second icons, respectively, by the user. To provide the guidance to the user, the second icon has graphical features indicative of the current status of the first action. For cases where the first action is a test that failed, the second action is highlighted thereby guiding the user to take the second action in response to the failed test. At least one of the graphical features of the second icon is indicative of whether the second icon is currently selectable by the user.
摘要翻译： 公开了一种具有显示器和图形用户界面（GUI）的测试装置，其通过在选择第一和第二图标时显示用于表示测试装置要采取的第一和第二动作的第一和第二图标来向用户提供指导， 分别由用户。 为了向用户提供指导，第二图标具有指示第一动作的当前状态的图形特征。 对于第一个操作是失败测试的情况，第二个操作被突出显示，从而指导用户采取第二个动作来响应失败的测试。 第二图标的至少一个图形特征指示用户当前是否可选择第二图标。
-
公开(公告)号：US20140082686A1
公开(公告)日：2014-03-20
申请号：US14033077
申请日：2013-09-20
申请人： Ben Maxson , Daniel K. Chappell , Jim Walsh
发明人： Ben Maxson , Daniel K. Chappell , Jim Walsh
IPC分类号： H04N7/10
CPC分类号： H04B3/46 , H04B17/0082 , H04H20/12 , H04L12/2801 , H04L27/2626 , H04N7/102 , H04N17/00 , H04N21/234354 , H04N21/2383 , H04N21/440254 , H04N21/6118
摘要： Methods and devices for characterization of repetitious noise in cable networks are disclosed. A frequency band of interest is identified, a time trace of a signal parameter within the frequency band is obtained, and an autocorrelation of the time trace is computed to detect repetitious noise. The repetition frequency can serve as an indicator of the noise source type, and thus it can assist in noise segmentation.
摘要翻译： 公开了用于表征电缆网络中的重复噪声的方法和装置。 识别感兴趣的频带，获得频带内的信号参数的时间轨迹，并且计算时间轨迹的自相关以检测重复噪声。 重复频率可以作为噪声源类型的指标，因此可以帮助噪声分割。
-
公开(公告)号：US20120327988A1
公开(公告)日：2012-12-27
申请号：US13535129
申请日：2012-06-27
申请人： Ben MAXSON , Walter Miller
发明人： Ben MAXSON , Walter Miller
CPC分类号： H04B5/0043 , H04B5/0037 , H04B2203/5495
摘要： Ingress noise labeling tags are coupled into the signal path at various nodes of a cable network. The tags imprint a unique electric signature into a local ingress noise, making the noise identifiable at the headend of the network. In one embodiment, tags do not require external control signals to operate, the electrical response of the tags being determined by present and/or past magnitudes of the return path signal. Advantageously, such tags can be made entirely passive, not requiring a control signal or an external source of electrical power.
摘要翻译： 入口噪声标签标签被耦合到有线网络的各个节点处的信号路径中。 标签将独特的电子签名印记到本地入口噪声中，使噪声可以在网络的头端识别。 在一个实施例中，标签不需要外部控制信号进行操作，标签的电响应由返回路径信号的当前和/或过去幅度确定。 有利地，这样的标签可以被完全无源地，不需要控制信号或外部电源。
-
公开(公告)号：US20090271836A1
公开(公告)日：2009-10-29
申请号：US12430516
申请日：2009-04-27
申请人： Ben MAXSON , Koji OKAMOTO
发明人： Ben MAXSON , Koji OKAMOTO
IPC分类号： H04N7/173
摘要： Use of direct sequence spread spectrum test signals injected at the same time and frequency of active network services to perform non-interfering measurements in the forward and reverse path of a CATV plant. Ideally, a plurality of transmitters, each transmitting a test signal with a unique spreading code, whereby multiple overlapping test signals are received simultaneously at the receiver (CDMA).
摘要翻译： 使用在有源网络服务的相同时间和频率处注入的直接序列扩频测试信号，以在CATV工厂的正向和反向路径中执行非干扰测量。 理想地，多个发射机，每个发送具有唯一扩展码的测试信号，由此在接收机（CDMA）处同时接收多个重叠测试信号。
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.015 秒)
