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11. 发明授权

US5699365A Apparatus and method for adaptive forward error correction in data communications 失效
标题翻译：数据通信中自适应前向纠错的装置和方法
公开(公告)号：US5699365A
公开(公告)日：1997-12-16
申请号：US625409
申请日：1996-03-27
申请人： Jeffrey T. Klayman , John A. Perreault , Katherine Unger , Stephen Schroeder
发明人： Jeffrey T. Klayman , John A. Perreault , Katherine Unger , Stephen Schroeder
IPC分类号： H03M13/35 , H04L1/00 , H03M13/00
CPC分类号： H04L1/0021 , H03M13/35 , H04L1/0009 , H04L1/0025
摘要： An apparatus (101, 110) and method for adaptive forward error correction in a data communication system (100) provides for dynamically changing forward error correction parameters based upon communication channel conditions, such as noise levels or error rates. In the method embodiment of the invention, data having a current degree of forward error correction is received (305), and a channel parameter is monitored (310), such as packet or bit error rates. A threshold level for the channel parameter is determined (315), and the monitored channel parameter is compared to the threshold level (320). When the channel parameter is not within a predetermined or adaptive variance of the threshold level, a revised forward error correction parameter having a greater or lesser degree of forward error correction capability is selected (330, 340, 350, 360), and the revised forward error correction parameter is transmitted (370). The device receiving the revised forward error correction parameter, such as a secondary station (110), then transmits data encoded utilizing the revised error correction parameter (425).
摘要翻译：在数据通信系统（100）中用于自适应前向纠错的装置（101,110）和方法提供了基于通信信道条件（诸如噪声电平或错误率）动态地改变前向纠错参数。在本发明的方法实施例中，接收具有当前程度的前向纠错的数据（305），并监视信道参数（310），诸如分组或误码率。确定通道参数的阈值水平（315），并将所监视的通道参数与阈值水平进行比较（320）。当信道参数不在阈值水平的预定或自适应方差内时，选择具有更大或更小程度的前向纠错能力的经修正的前向纠错参数（330,340,350,360），并修改前向发送错误校正参数（370）。接收经修正的前向纠错参数（例如次站（110））的设备然后发送利用经修正的纠错参数（425）编码的数据。

12. 发明申请

US20050052019A1 Vented rotating flange assembly for plastic lined pipe 审中-公开
标题翻译：用于塑料内衬管的通风旋转法兰组件
公开(公告)号：US20050052019A1
公开(公告)日：2005-03-10
申请号：US10660018
申请日：2003-09-10
申请人： Frank Stephen Schroeder
发明人： Frank Stephen Schroeder
IPC分类号： F16L23/12 , F16L55/00
CPC分类号： F16L23/125
摘要： The subject invention provides a means of flanging a plastic lined steel pipe in a field fabrication environment by either threading or welding the flange adapter to the pipe housing, employing a rotating back up flange for easy bolt hole alignment during assembly, and providing a vent path for permeating gases trapped between the plastic liner and the pipe housing to escape.
摘要翻译：本发明提供了一种在现场制造环境中通过将凸缘适配器螺纹连接或焊接到管壳体上的方式来对塑料衬里钢管进行翻边的方法，其采用旋转的备用凸缘，用于在组装期间容易地进行螺栓孔对准，并提供通气路径用于渗透在塑料衬套和管壳之间的气体逸出。

13. 发明授权

US5596577A Method and system for providing access by secondary stations to a shared transmission medium 失效
标题翻译：用于提供从站到共享传输介质的访问的方法和系统
公开(公告)号：US5596577A
公开(公告)日：1997-01-21
申请号：US433905
申请日：1995-05-02
申请人： John A. Perreault , Abhay Joshi , Mete Kabatepe , Lawrence W. Lloyd , Stephen Schroeder
发明人： John A. Perreault , Abhay Joshi , Mete Kabatepe , Lawrence W. Lloyd , Stephen Schroeder
IPC分类号： H04L12/403 , H04Q9/00
CPC分类号： H04L12/40013 , H04L12/40163 , H04L12/403
摘要： A method for providing access by secondary stations (12, 14, 16) to a shared transmission medium, maintains a list of secondary stations (12, 14, 16). A poll is transmitted poll by a primary station (10) to one of the secondary stations (12, 14, 16). The secondary station (12, 14, 16) waits for a poll, examines the transmission allocation, determines if there is congestion and transmits, along with the data in response to the poll, information regarding congestion. A system for providing such access includes a primary station (10) and a plurality of secondary stations (12, 14, 16). The primary station includes a polling controller (30), a receiver (32), a transmitter (34), a summer (36), a secondary station poll list database (38) and a data traffic controller (40).
摘要翻译：一种用于向次级站（12,14,16）提供到共享传输介质的访问的方法，保持次站列表（12,14,16）。轮询通过主站（10）向其中一个次站（12,14,16）进行轮询。次站（12,14,16）等待轮询，检查传输分配，确定是否存在拥塞并且响应于轮询的数据发送与拥塞有关的信息。用于提供这种访问的系统包括主站（10）和多个次站（12,14,16）。主站包括轮询控制器（30），接收器（32），发射机（34），加法器（36），次站轮询列表数据库（38）和数据业务控制器（40）。

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