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1.发明申请公开(公告)号：US20070217521A1
公开(公告)日：2007-09-20
申请号：US11495605
申请日：2006-07-31
CPC分类号： H04L25/20 , H04L25/4915
摘要： A relay unit capable of avoiding the occurrence of simultaneous switching whatever data is received and thereby preventing malfunction of the device due to impulse noise, and a memory product having stored therein a computer program are provided. The relay unit includes a latch unit that temporarily stores converted parallel data; a determining unit that compares received data with subsequent data to be received subsequently and thereby determines whether to invert bits of data; and an inverting unit that invert bits of converted serial data. When the determining unit determines that bit-inverted parallel data is received as subsequent data, the determining unit transmits to the latch unit a signal instructing to prohibit from storing temporarily the received subsequent data and transmits to the inverting unit a signal instructing to invert bits of data.
摘要翻译： 一种中继单元，其能够避免任何数据被接收的同时切换的发生，从而防止由于脉冲噪声引起的设备故障，并且提供其中存储有计算机程序的存储器产品。 中继单元包括：临时存储转换的并行数据的锁存单元; 确定单元，将接收到的数据与随后要接收的随后数据进行比较，从而确定是否反转数据位; 以及反转单元，其反转转换的串行数据的比特。 当确定单元确定接收到位反转的并行数据作为后续数据时，确定单元向锁存单元发送指示禁止临时存储所接收的后续数据的信号，并向反转单元发送指示反转的位的信号 数据。
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2.发明申请Techique of identifying a defective subscriber device in a point-to-multipoint network without stopping normal subscriber devices 有权在不停止普通用户设备的情况下，识别点对多点网络中的有缺陷的用户设备的技术公开(公告)号：US20080095532A1
公开(公告)日：2008-04-24
申请号：US11905106
申请日：2007-09-27
CPC分类号： H04J3/1694
摘要： In a point-to-multipoint network of an optical line terminal (OLT) and multiple optical network units (ONUS) wherein each ONU is enabled to send a signal only within a time period enabled for the ONU, the OLT (or a system installed therein) identifies a defective one of the ONUs. For each of a given series of time periods, the OLT measures an optical reception level of an optical fiber signal in the time period. The OLT stores, in advance, in a table at least the reception level of a received signal from each ONU in association with the ONU. The reception level is measured in a normal state where signals from the ONUs are exclusively received. For each of the given series of time periods, the OLT decides whether a signal from one of the ONUs associated with the time period is exclusively received with no collision with any other signal. If the signal from an ONU associated with the time period is not exclusively received, the OLT identifies the defective ONU based on a measured optical reception level for the time period, a stored reception level of an ONU stored in the table and associated with the time period and the table.
摘要翻译： 在光线路终端（OLT）和多个光网络单元（ONUS）的点对多点网络中，其中每个ONU仅能够在为ONU启用的时间段内发送信号，OLT（或安装的系统 在其中）识别有缺陷的一个ONU。 对于给定的一系列时间段中的每一个，OLT在该时间段内测量光纤信号的光接收电平。 OLT至少预先将与ONU对应的来自每个ONU的接收信号的接收电平存储在表中。 在来自ONU的信号被专门接收的正常状态下测量接收电平。 对于给定的一系列时间段中的每一个，OLT决定是否专门接收来自与该时间段相关联的一个ONU的信号，而不与任何其它信号发生冲突。 如果来自与时间段相关联的ONU的信号未被排他地接收，则OLT根据测量的时间段的光接收电平来识别有缺陷的ONU，存储在表中并与时间相关联的ONU的存储接收电平 期间和表。
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3.发明授权Technique of identifying a defective subscriber device in a point-to-multipoint network without stopping normal subscriber devices 有权识别点对多点网络中的有缺陷的用户设备而不停止普通用户设备的技术公开(公告)号：US07907843B2
公开(公告)日：2011-03-15
申请号：US11905106
申请日：2007-09-27
CPC分类号： H04J3/1694
摘要： In a point-to-multipoint network of an optical line terminal (OLT) and multiple optical network units (ONUS) wherein each ONU is enabled to send a signal only within a time period enabled for the ONU, the OLT (or a system installed therein) identifies a defective one of the ONUs. For each of a given series of time periods, the OLT measures an optical reception level of an optical fiber signal in the time period. The OLT stores, in advance, in a table at least the reception level of a received signal from each ONU in association with the ONU. The reception level is measured in a normal state where signals from the ONUs are exclusively received. For each of the given series of time periods, the OLT decides whether a signal from one of the ONUs associated with the time period is exclusively received with no collision with any other signal. If the signal from an ONU associated with the time period is not exclusively received, the OLT identifies the defective ONU based on a measured optical reception level for the time period, a stored reception level of an ONU stored in the table and associated with the time period and the table.
摘要翻译： 在光线路终端（OLT）和多个光网络单元（ONUS）的点对多点网络中，其中每个ONU仅能够在为ONU启用的时间段内发送信号，OLT（或安装的系统 在其中）识别有缺陷的一个ONU。 对于给定的一系列时间段中的每一个，OLT在该时间段内测量光纤信号的光接收电平。 OLT至少预先将与ONU对应的来自每个ONU的接收信号的接收电平存储在表中。 在来自ONU的信号被专门接收的正常状态下测量接收电平。 对于给定的一系列时间段中的每一个，OLT决定是否专门接收来自与该时间段相关联的一个ONU的信号，而不与任何其它信号发生冲突。 如果来自与时间段相关联的ONU的信号未被排他地接收，则OLT根据测量的时间段的光接收电平来识别有缺陷的ONU，存储在表中并与时间相关联的ONU的存储接收电平 期间和表。
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