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1. 发明授权

US06473214B1 Methods of and apparatus for optical signal transmission 失效
标题翻译：光信号传输的方法和装置
公开(公告)号：US06473214B1
公开(公告)日：2002-10-29
申请号：US09283213
申请日：1999-04-01
申请人： Kim B. Roberts , Maurice S. O'Sullivan , Richard R. Habel
发明人： Kim B. Roberts , Maurice S. O'Sullivan , Richard R. Habel
IPC分类号： H04B1004
CPC分类号： H04L5/06 , H04L25/497 , H04L27/02
摘要： A binary signal is encoded to produce a three-level encoded signal having reduced bandwidth and small low frequency and d.c. components, e.g. using modified duobinary encoding, the encoded signal directly modulating a semiconductor laser to produce a frequency modulated optical signal, which is passed through an interference filter to provide two-state amplitude modulation from the three-state frequency modulation for direct recovery of the binary signal by an optical receiver, the interference filter providing constructive and destructive interference for frequencies corresponding to binary one and zero bits respectively. An array transmission system can be provided by combining multiple such frequency modulated optical signals, from multiple lasers with respective central frequencies and respective encoders for multiple binary signals, using an array waveguide which also serves as a channel frequency filter, with a single interference filter. Polarization modulation instead of frequency modulation, and external modulation of an optical signal from an optical source, are also described.
摘要翻译：二进制信号被编码以产生具有减小的带宽和小的低频和直流的三电平编码信号。组分，例如使用修改的二进制编码，编码信号直接调制半导体激光器以产生调频光信号，该信号通过干涉滤波器从三态调制提供双态幅度调制，以通过以下方式直接恢复二进制信号：光接收机，干扰滤波器分别为对应于二进制1和零位的频率提供建设性和相消干扰。可以通过使用具有单个干涉滤波器的阵列波导来组合来自具有各自中心频率的多个激光器和多个二进制信号的相应编码器的多个这种频率调制光信号来提供阵列传输系统。还描述了偏振调制而不是频率调制，以及来自光源的光信号的外部调制。

2. 发明授权

US06937614B1 Transparent port for high rate networking 有权
标题翻译：用于高速率网络的透明端口
公开(公告)号：US06937614B1
公开(公告)日：2005-08-30
申请号：US09438516
申请日：1999-11-12
申请人： Kim B. Roberts , Richard R. Habel
发明人： Kim B. Roberts , Richard R. Habel
IPC分类号： H04J3/14 , H04Q11/00 , H04J3/16
CPC分类号： H04J3/14 , H04Q11/0062 , H04Q2011/0045 , H04Q2011/0079 , H04Q2011/0088
摘要： A transparent port which maps continuous format signals of an arbitrary rate into frames of a pre-selected single common rate, is provided with a programmable link termination/instigation, for example a FPGA. The port identifies the rate of the continuous signal, recognizes its protocol and the FPGA is configured accordingly. FPGA performs framing, counts errors, does code conversion, corrects parity and performs any other performance monitoring specific to the protocol. In this way, the continuous format signal may be carried transparently as a tributary of e.g. a SONET network, and the performance parameters for the previous section, such as the previous section fail, may be reported to the far end.
摘要翻译：将任意速率的连续格式信号映射成预选单个公共速率的帧的透明端口被提供有可编程链路终止/启动，例如FPGA。端口识别连续信号的速率，识别其协议，并相应地配置FPGA。 FPGA执行成帧，计数错误，执行代码转换，校正奇偶校验并执行特定于协议的任何其他性能监视。以这种方式，连续格式信号可以透明地承载为例如支路的支路。 SONET网络，以及上一节的性能参数（如上一节失败）可能会报告到远端。

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