公开(公告)号：US06404533B1

公开(公告)日：2002-06-11

申请号：US09682414

申请日：2001-08-30

申请人： Richard John Fergusson

发明人： Richard John Fergusson

IPC分类号： G02F101

CPC分类号： H04B10/541

摘要： An optical amplitude modulator for modulating signals for transmission by a fibre optic link. The modulator comprises of a plurality of optical transmitters, whereby each transmitter is driven by an electronic circuit. Generally, each optical transmitter provides a light output, and the light outputs of the plurality of optical transmitters are combined optically for transmission as an optical output signal. Additionally, each of the plurality of optical transmitters has an associated optical filter, whereby each filter has a different level of opaqueness. Each filter, filters light output from the associated optical transmitter.

摘要翻译： 一种用于调制由光纤链路传输的信号的光学幅度调制器。 调制器包括多个光发射机，由此每个发射机由电子电路驱动。 通常，每个光学发射器提供光输出，并且多个光发射器的光输出被光学地组合以作为光输出信号进行传输。 另外，多个光发射器中的每一个具有相关联的滤光器，由此每个滤光器具有不同的不透明度。 每个滤波器对相关的光发射机的光输出进行滤波。

公开(公告)号：US06754240B1

公开(公告)日：2004-06-22

申请号：US09353553

申请日：1999-07-14

申请人： Thomas Crummey ,  Richard John Fergusson ,  Shaun Kerigan ,  Philip Lane

发明人： Thomas Crummey ,  Richard John Fergusson ,  Shaun Kerigan ,  Philip Lane

IPC分类号： H04J1256

CPC分类号： G09G5/006 ,  G09G2360/02 ,  G09G2370/04 ,  H04J3/047 ,  H04J3/1682 ,  H04L12/6418 ,  H04L2012/6427 ,  H04L2012/6429 ,  H04L2012/6459 ,  H04N7/52 ,  H04N21/2381 ,  H04N21/4113 ,  H04N21/4363 ,  H04N21/4381 ,  H04N21/64307

摘要： An isochronous output data stream format which is time multiplexed and has a fixed time period where input isochronous data streams are multiplexed into the output isochronous data stream and the output data stream is the same data rate as the fastest input isochronous data stream. One or more of the input data streams contain a code which has been run length limited and/or has a zero running digital sum with banded disparity. In another embodiment, an isochronous output data stream format which is time multiplexed and has a fixed time period where input isochronous data streams are multiplexed into the output isochronous data stream and the output data stream is the sum of the maximum input isochronous data streams. One or more of the data streams contain a code which has been run length limited and/or has a zero running digital sum with banded disparity.

摘要翻译： 同步输出数据流格式是时间复用并且具有固定时间段，其中输入同步数据流被复用到输出同步数据流和输出数据流中是与最快的输入同步数据流相同的数据速率。 输入数据流中的一个或多个包含已经运行长度受限的代码和/或具有带状差异的零运行数字和。 在另一个实施例中，等时输出数据流格式是时间复用并且具有固定时间段，其中输入同步数据流被多路复用到输出同步数据流和输出数据流中是最大输入同步数据流的总和。 数据流中的一个或多个包含已经运行长度受限的代码和/或具有带状差异的零运行数字和。

公开(公告)号：US06710910B2

公开(公告)日：2004-03-23

申请号：US09682417

申请日：2001-08-30

申请人： Tom Crummey ,  Richard John Fergusson

发明人： Tom Crummey ,  Richard John Fergusson

IPC分类号： G02F200

CPC分类号： H04L25/061 ,  H04B10/69 ,  H04L25/26

摘要： An optical amplitude demodulator for demodulating signals received from a fiber optic link. The demodulator comprises a plurality of optical sensors for detecting optical output from the fiber optic link, whereby each of the optical sensors has a different detection threshold. Generally, the plurality of optical sensors produce a plurality of digital outputs corresponding to the optical output level detected. A priority encoder encodes the digital outputs into a multi-bit digital signal. Additionally, each of the plurality of optical sensors has an associated optical filter, whereby each of the filters has a different level of opaqueness. Each filter filters received optical output prior to detection by the associated optical sensor.

摘要翻译： 一种用于解调从光纤链路接收的信号的光学幅度解调器。 解调器包括用于检测光纤链路的光输出的多个光学传感器，由此每个光学传感器具有不同的检测阈值。 通常，多个光学传感器产生对应于检测到的光输出电平的多个数字输出。 优先编码器将数字输出编码为多位数字信号。 另外，多个光学传感器中的每一个具有相关联的滤光器，由此每个滤光器具有不同的不透明度。 每个滤波器在相关联的光学传感器检测之前对接收到的光输出进行滤波。

公开(公告)号：US06693895B1

公开(公告)日：2004-02-17

申请号：US09353271

申请日：1999-07-14

申请人： Thomas Crummey ,  Richard John Fergusson ,  Shaun Kerigan ,  Philip Lane

发明人： Thomas Crummey ,  Richard John Fergusson ,  Shaun Kerigan ,  Philip Lane

IPC分类号： H04L1266

CPC分类号： H04L12/5601 ,  H04L2012/5605 ,  H04L2012/5674

摘要： An isochronous output data stream format in which a single n bit word is transmitted as m multiple synchronous data streams where the length of the word transmitted in each data stream is n/m, the output data stream containing multiple isochronous different data rate data streams and one or more asynchronous data stream or streams. One bit from each of the m multiple synchronous data streams are combined and transmitted as a single signal at one of 2m analog levels. Data which is it desired to have a lower error rate than other data is transmitted in the synchronous data stream corresponding to the most significant bit associated with the 2m analog levels. Calibration data is transmitted in the synchronous data stream corresponding to the most significant bit associated with the 2m analog levels, the calibration data also being transmitted distributed over each of the m synchronous data streams.

摘要翻译： 一个同步输出数据流格式，其中单个n位字作为多个同步数据流发送，其中在每个数据流中发送的字的长度为n / m，输出数据流包含多个同步不同数据速率数据流，以及 一个或多个异步数据流或流。 将来自m个多个同步数据流中的每一个的一个位组合并作为2m模拟电平之一中的单个信号发送。 在与2m模拟电平相关联的最高有效位对应的同步数据流中发送希望具有比其他数据更低误码率的数据。 校准数据在对应于与2m模拟电平相关联的最高有效位的同步数据流中发送，校准数据也被传送分布在每个m个同步数据流上。