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1. 发明授权

US07561522B1 Communications network having mechanism for removal of time-expired packets from the network 失效
标题翻译：具有用于从网络去除时间到期的分组的机制的通信网络
公开(公告)号：US07561522B1
公开(公告)日：2009-07-14
申请号：US09959280
申请日：2000-05-05
申请人： David Cotter
发明人： David Cotter
IPC分类号： G06F11/00
CPC分类号： H04L47/286 , H04J14/0206 , H04J14/0212 , H04J2203/0032 , H04J2203/0042 , H04J2203/0076 , H04J2203/0098 , H04L12/42 , H04L12/433 , H04L47/10 , H04L47/13 , H04L47/32 , H04L2012/5605 , H04L2012/5612 , H04L2012/5651 , H04L2012/5679 , H04Q11/0001
摘要： In a communications network, expired packets are recognized and removed by comparing a phase value received with the packet and a phase value previously received via the network on a master node. The packet is discarded when the difference between the value exceeds a predetermined amount.
摘要翻译：在通信网络中，通过比较接收到的分组的相位值和先前在主节点上经由网络接收的相位值来识别和去除过期分组。当该值之间的差值超过预定量时，该分组被丢弃。

2. 发明申请

US20060272930A1 Belt conveyor 有权
公开(公告)号：US20060272930A1
公开(公告)日：2006-12-07
申请号：US11504509
申请日：2006-08-15
申请人： David Cotter , Kenneth Kooistra , Curtis LeMay
发明人： David Cotter , Kenneth Kooistra , Curtis LeMay
IPC分类号： B65G23/04
CPC分类号： B65G15/32 , B65G15/22 , B65G15/24 , B65G15/50 , B65G15/64 , B65G39/02 , B65G39/071 , B65G43/10 , B65G47/261 , B65G47/31 , B65G47/53 , B65G2203/044
摘要： A belt conveyor includes a driven roller and at least one other roller positioned along and between opposite sidewalls of the conveyor and a continuous belt routed around the driven roller and the other roller or rollers. The driven roller is drivable to drive the belt around the rollers to move articles along the respective zone. The belt has a low modulus characteristic and may be initially stretched at least 0.75 percent in its lengthwise direction when the belt is reeved or routed around the rollers. The driven roller may be drivable in response to an article sensor that senses articles on the conveyor belt, in order to convey or accumulate articles on the belt conveyor.

3. 发明申请

US20050040016A1 MOTORIZED ROLLER TRANSVERSE DRIVE 有权
标题翻译：电动滚筒横向驱动
公开(公告)号：US20050040016A1
公开(公告)日：2005-02-24
申请号：US10710809
申请日：2004-08-04
申请人： Ryan Tasma , David Cotter , Ronald Ehlert
发明人： Ryan Tasma , David Cotter , Ronald Ehlert
IPC分类号： B65G13/071 , B65G47/54 , B65G47/10
CPC分类号： B65G47/54 , B65G13/071
摘要： A roller conveyor includes a plurality of idler rollers positioned along and between opposite sidewalls and a transverse drive system operable to rotatably drive at least some of the idler rollers of the roller conveyer. The transverse drive system includes a motorized roller positioned generally transverse to the idler rollers and a plurality of drive members drivably connected between the motorized roller and respective ones of the idler rollers. Actuation of the motorized roller drives each of the drive members, which in turn independently rotatably drive the respective idler rollers. The transverse drive system may be selectively operable to accumulate articles on one or more zones of the roller conveyor. The roller conveyor may include a right angle transfer unit operable to transfer articles in a direction generally normal to the direction of conveyance of the idler rollers.
摘要翻译：辊式输送机包括沿着相对的侧壁定位并在相对的侧壁之间的多个惰辊，以及可操作以可旋转地驱动辊式输送机的惰辊的至少一些的横向驱动系统。横向驱动系统包括大致横向于惰轮的电动滚子和可驱动地连接在电动滚筒和相应的惰轮之间的多个驱动部件。电动辊的驱动驱动每个驱动构件，驱动构件又独立地旋转地驱动相应的惰轮。横向驱动系统可以选择性地可操作地将物品累积在辊式输送机的一个或多个区域上。辊式输送机可以包括直角转印单元，其可操作以沿大致垂直于惰辊的输送方向的方向转印物品。

4. 发明授权

US6069720A Optical telecommunications network 有权
标题翻译：光通信网
公开(公告)号：US6069720A
公开(公告)日：2000-05-30
申请号：US289626
申请日：1999-04-12
申请人： David Cotter , Martin C. Tatham
发明人： David Cotter , Martin C. Tatham
IPC分类号： H04B10/299 , H04J14/08 , H04L7/00 , H04L7/04 , H04L7/10 , H04L12/28 , H04L12/42 , H04L12/56 , H04Q3/00 , H04Q3/52 , H04Q11/00
CPC分类号： H04B10/299 , H04J14/08 , H04L12/2852 , H04L7/0075 , H04Q11/0062 , H04L7/041 , H04Q11/0066 , H04Q2011/0013 , H04Q2011/002 , H04Q2011/0033 , H04Q2011/0035 , H04Q2011/0039 , H04Q2011/0041 , H04Q2011/0045 , H04Q2011/0092
摘要： A packet carried on an optical network is routed by carrying out a logic operation on an address word carried in a packet header and a predetermined discriminator word. A routing decision is made in accordance with the result of the logic operation. The logic operation may be a bit-wise Boolean AND operation. An additional logic operation may be carried out with an additional discriminator word to determine whether the packet is destined for a remote region of the network. In this case, the packet may be steered directly to the remote region.
摘要翻译：通过对分组报头和预定鉴别字中携带的地址字执行逻辑运算，路由光网络上携带的分组。根据逻辑运算的结果做出路由决定。逻辑运算可以是一个逐位布尔AND运算。附加的逻辑操作可以用附加的鉴别字执行以确定该分组是否发往网络的远程区域。在这种情况下，可以将分组直接转向远程区域。

5. 发明授权

US5900956A Optically encoded signals 失效
标题翻译：光信号编码
公开(公告)号：US5900956A
公开(公告)日：1999-05-04
申请号：US530268
申请日：1995-11-15
申请人： David Cotter
发明人： David Cotter
IPC分类号： G02F1/35 , G02F3/00 , G06E1/02 , H04Q11/00 , H04B10/00
CPC分类号： H04Q11/0003 , G06E1/02 , H04Q11/0066 , H04Q2011/0009 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/002 , H04Q2011/0035 , H04Q2011/0041
摘要： In a method of recognizing an optically encoded binary word, the word is chosen from a subset of binary words for which WT=0 if W=T, WT=1 if W.noteq.T is true, where T is the target word, W is the word to be compared and is the operation formula (I). The word is recognized by carrying out in the optical domain a bit-wise Boolean AND operation. The operation is carried out on the word to be recognized and the complement of the target word. The AND operation may be carried out by introducing the word to be recognized and the target word into a nonlinear crystal and detecting the second harmonic output from the crystal. The complement of the target word may be generated by a fixed word-forming network. The method may be applied to recognizing the address of a packet on an optical network.
摘要翻译： PCT No.PCT / GB94 / 00397 Sec。 371日期：1995年11月15日 102（e）日期1995年11月15日PCT 1994年3月1日PCT公布。公开号WO94 / 21088 日期1994年9月15日在识别光学编码二进制字的方法中，如果W = T，W + ZT = 1，如果W NOTEQUAL T为真，则从W + ZT = 0的二进制字的子集中选择该词，其中T是目标字，W是要比较的字，+ Z是运算公式（I）。通过在光域中执行逐位布尔AND运算来识别该字。该操作是针对要识别的词和目标词的补语进行的。可以通过将要识别的单词和目标词引入非线性晶体并检测来自晶体的二次谐波输出来执行“与”运算。目标字的补码可以由固定的字形成网络产生。该方法可以应用于识别光网络上的分组的地址。

6. 发明授权

US4977620A Optical homodyne detection 失效
标题翻译：光学零差检测
公开(公告)号：US4977620A
公开(公告)日：1990-12-11
申请号：US2663
申请日：1987-01-05
申请人： David W. Smith , David Cotter , Richard Wyatt
发明人： David W. Smith , David Cotter , Richard Wyatt
IPC分类号： G02F2/00 , G02F1/35 , H01S3/06 , H01S3/30 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/148 , H04B10/152
CPC分类号： H04B10/61 , G02F2/002 , H04B10/63
摘要： An optical homodyne detection system employs the phenomenon of stimulated Brillouin scattering to amplify the carrier component of an incoming coherent modulated optical wave. The composite wave formed of the amplified carrier component and unamplified information component is locked in phase, frequency and polarization with the incoming modulated wave. Using this composite wave, a homodyne detection system is formed to detect the data in the information component.
摘要翻译： PCT No.PCT / GB86 / 00252 Sec。 371日期1987年1月5日 102（e）日期1987年1月5日PCT申请日1986年5月9日PCT公布。出版物WO86 / 06849 日期：1986年11月20日。光学零差检测系统采用受激布里渊散射的现象来放大输入相干调制光波的载波分量。由放大的载波分量和未放大的信息分量形成的复合波与输入的调制波锁相在相位，频率和极化中。使用该复合波，形成零差检测系统以检测信息分量中的数据。

7. 发明授权

US4807953A Apparatus and method for frequency locking electromagnetic optical signals 失效
标题翻译：用于频率锁定电磁光信号的装置和方法
公开(公告)号：US4807953A
公开(公告)日：1989-02-28
申请号：US2694
申请日：1987-01-05
申请人： David W. Smith , David Cotter , Richard Wyatt
发明人： David W. Smith , David Cotter , Richard Wyatt
IPC分类号： G01C19/64 , H01S3/06 , H01S3/083 , H01S3/30 , G02B6/26 , G02F1/00
CPC分类号： H01S3/302
摘要： A method and apparatus for generating a plurality of electromagnetic signals, primarily optical signals, having linewidths centered on frequencies fixed relatively to a reference frequency. The apparatus comprises a reference frequency signal source such as a gas laser (1) which generates a reference signal having a frequency f.sub.p. This reference signal is fed to a leading one (3) of a plurality of optical fibre ring lasers (3, 11, 16) connected together in series by optical fibres (6, 12). The characteristics of the injected signal and the form of the waveguide ring (5) defined by the ring laser (3) is such that stimulated Brillouin scattering occurs in the waveguide ring to generate a scattered signal with a frequency f.sub.p -f.sub.A traveling in an opposite direction to the injected signal. This scattered signal is passed by the optical fibres (6) via an isolation device (7) to the next ring laser (11) in series. Directional couplers (2, 10, 15) are provided to guide the injected signals, including the reference signal to respective output ports (9, 14, 17). The stimulated Brillouin scattering effect causes each scattered wave to be offset from the corresponding injected wave by a fixed frequency (f.sub.A).
摘要翻译： PCT No.PCT / GB86 / 00254 Sec。 371日期1987年1月5日 102（e）日期1987年1月5日PCT申请日1986年5月9日PCT公布。第WO86 / 06886号公报日期：1986年11月20日。一种用于产生多个电磁信号的方法和装置，主要是具有以相对于参考频率固定的频率为中心的线宽的光信号。该装置包括产生具有频率fp的参考信号的诸如气体激光器（1）的参考频率信号源。该参考信号被馈送到由光纤（6,12）串联在一起的多个光纤环形激光器（3,11,16）中的前导（3）。注入信号的特性和由环形激光器（3）限定的波导环（5）的形式使得在波导环中发生受激布里渊散射，以产生频率fp-fA以相反的方式行进的散射信号注入信号的方向。该散射信号由光纤（6）经由隔离装置（7）通过串联连接到下一个环形激光器（11）。提供方向耦合器（2,10,15）以将包括参考信号的注入信号引导到相应的输出端口（9,14,17）。被激发的布里渊散射效应使得每个散射波以相对于注入波的固定频率（fA）偏移。

8. 发明授权

US4780876A Method and apparatus for generating coherent radiation 失效
标题翻译：用于产生相干辐射的方法和装置
公开(公告)号：US4780876A
公开(公告)日：1988-10-25
申请号：US2717
申请日：1987-01-05
申请人： David W. Smith , David Cotter , Richard Wyatt
发明人： David W. Smith , David Cotter , Richard Wyatt
IPC分类号： H01S3/06 , H01S3/083 , H01S3/30 , H01S5/00
CPC分类号： H01S3/302
摘要： A method and apparatus for generating relatively narrow linewidth radiation, for example having a 1 MHz linewidth. The apparatus comprises a source of relatively broad linewidth, coherent radiation such as a semiconductor laser (1) generating optical radiation having a linewidth of 10 MHz. The broad linewidth radiation is injected into a waveguide ring (5), the characteristics of the radiation and the form of the waveguide ring (5) being such that stimulated Brillouin scattering occurs in use to generate the relatively narrow linewidth of the order of kHz, coherent wave travelling in an opposite direction to the broad linewidth radiation. A directional coupler (3) between the source (1) and the waveguide ring (5) separates the narrow linewidth wave from the injected radiation.
摘要翻译： PCT No.PCT / GB86 / 00253 Sec。 371日期1987年1月5日 102（e）日期1987年1月5日PCT申请日1986年5月9日PCT公布。出版物WO86 / 06885 日期：1986年11月20日。一种用于产生比较窄的线宽辐射的方法和装置，例如具有1MHz的线宽。该装置包括相对宽线宽的相干辐射源，例如产生具有10MHz的线宽的光辐射的半导体激光器（1）。宽的线宽辐射被注入到波导环（5）中，辐射的特性和波导环（5）的形式使得受激的布里渊散射发生在使用中以产生大约为kHz的相对窄的线宽，相干波在与宽线宽辐射相反的方向上行进。源（1）和波导环（5）之间的定向耦合器（3）将窄线宽波与注入的辐射分开。

9. 发明授权

US07376138B1 Optical communications network 有权
标题翻译：光通信网
公开(公告)号：US07376138B1
公开(公告)日：2008-05-20
申请号：US09958880
申请日：2000-05-05
申请人： David Cotter
发明人： David Cotter
IPC分类号： H04L12/28
CPC分类号： H04L47/286 , H04J14/0204 , H04J14/0212 , H04J2203/0032 , H04J2203/0042 , H04J2203/0076 , H04J2203/0098 , H04L12/42 , H04L47/10 , H04L47/13 , H04L47/2433 , H04L47/32 , H04L2012/5605 , H04L2012/5612 , H04L2012/5651 , H04L2012/5679 , H04Q11/0001 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0064 , H04Q2011/0084 , H04Q2011/0086
摘要： In a communications network, a node receives a transit packet. The priority assigned to the transit packet is determined and when it has a low priority then the transit packet is removed and a higher priority packet is inserted in the resulting vacancy.
摘要翻译：在通信网络中，节点接收传输分组。确定分配给传输分组的优先级，当其优先级低时，传输分组被去除，并且在所产生的空位中插入较高优先级的分组。

10. 发明授权

US06959151B1 Communication network 失效
标题翻译：通讯网络
公开(公告)号：US06959151B1
公开(公告)日：2005-10-25
申请号：US09958845
申请日：2000-05-05
申请人： David Cotter , Julian K Lucek
发明人： David Cotter , Julian K Lucek
IPC分类号： H04J14/02 , H04L12/42 , H04L12/43 , H04L12/54 , H04L12/70 , H04L12/801 , H04Q11/00 , H04Q11/04 , H04B10/08 , H04B10/20 , H04L12/56
CPC分类号： H04Q11/0001 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0212 , H04J2203/0032 , H04J2203/0042 , H04J2203/0076 , H04J2203/0098 , H04L12/42 , H04L12/43 , H04L12/56 , H04L47/10 , H04L2012/5605 , H04L2012/5612 , H04L2012/5651 , H04L2012/5679
摘要： A node in an optical communications network receives optical packets at its input. It determines a priority assigned to each optical packet. When the optical packet is a transit packet destined for another node then, if the packet is determined to have a relatively higher priority, it is output from the node via a continuous-flow transmission path. Other transmit packets having relatively lower priorities are sent via an alternative transmission path that may include queues or buffers resulting in a variable delay.
摘要翻译：光通信网络中的节点在其输入端接收光分组。它确定分配给每个光学分组的优先级。当光分组是目的地为另一节点的传输分组时，如果分组被确定为具有相对较高的优先级，则其经由连续流传输路径从节点输出。具有相对较低优先级的其他发送分组经由可能包括导致可变延迟的队列或缓冲器的备选传输路径来发送。

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