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1. 发明授权

EP3350945B1 AN OPTICAL RECEIVER WITH A CASCODE FRONT END 有权
公开(公告)号：EP3350945B1
公开(公告)日：2019-11-06
申请号：EP16763848.5
申请日：2016-09-13
申请人： Firecomms Limited
发明人： MURPHY, Patrick , DONOVAN, Colm , CAHILL, Ciaran
IPC分类号： H04B10/61 , H04B10/69

2. 发明授权

EP2721437B1 AN OPTICAL FIBRE CONNECTOR 有权
公开(公告)号：EP2721437B1
公开(公告)日：2018-12-12
申请号：EP12732715.3
申请日：2012-06-14
申请人： Firecomms Limited
发明人： DOYLE, Patrick , MORIARTY, Thomas
IPC分类号： G02B6/38 , G02B6/42
CPC分类号： G02B6/3858 , G02B6/4277 , G02B6/4292
摘要： A connector includes a main body, and a pair of sockets. Each socket includes a pair of opposed resilient walls in the overall configuration of a split tube. The connector also includes a transversely sliding clamp with two tapered slots, located so that one of the sockets passes through each slot. After fiber terminations are pushed into the sockets through the clamp slots, the clamp is slid in a plane across the socket axes so that the narrower ends of the slots engage the opposed split tube resilient walls of each socket. This squeezes each socket so that the opposed split tube resilient walls press against the associated fiber termination and retains it in place. The sockets may have guide slots for guiding clamp movement. The clamp moves in a translational movement, but in another example the clamp rotates in the lateral plane to squeeze the sockets.

3. 发明公开

EP3350945A1 AN OPTICAL RECEIVER WITH A CASCODE FRONT END 有权
公开(公告)号：EP3350945A1
公开(公告)日：2018-07-25
申请号：EP16763848.5
申请日：2016-09-13
申请人： Firecomms Limited
发明人： MURPHY, Patrick , DONOVAN, Colm , CAHILL, Ciaran
IPC分类号： H04B10/61 , H04B10/69
摘要： An optical receiver (1) comprises a differential TIA (4) linked with a photodiode (2, 3) providing a current sense signal (Isig_tia). The receiver is configured to provide to the TIA a sense signal as a sense TIA input (Isig_tia) and a second input (Idark_tia) which is a proportion of the maximum sense signal. The proportion input is half of said maximum sense signal. The inputs to the TIA are via cascode circuits (5, 6), thereby providing the advantages of a low input impedance for large area photodiodes at the TIA input, while creating a fully differential signal at the output, and the reduction of TIA bandwidth in burst mode applications, which filters out high frequency noise.

4. 发明公开

EP3350927A1 GLITCH COMPENSATION IN ELECTRONIC CIRCUITS 审中-公开
公开(公告)号：EP3350927A1
公开(公告)日：2018-07-25
申请号：EP16767202.1
申请日：2016-09-13
申请人： Firecomms Limited
发明人： DONOVAN, Colm , CAHILL, Ciaran , MURPHY, Patrick
IPC分类号： H03K19/003
CPC分类号： H03K19/00346 , H03K19/00369
摘要： A supply circuit for providing pulses of current has a current source (11), a reference voltage source (12) for controlling magnitude of the current, and a current switch (13) for controlling whether or not the current passes through a load. Also, there is a switch control signal terminal (15) for controlling the current switch, and glitch compensation elements including at least one capacitance circuit (32) and associated capacitor drive circuit (21) for feeding a variable correcting voltage back to the reference voltage,), and a controller (33) to control said variable voltage.

5. 发明公开

EP3350919A1 AN OPTICAL RECEIVER 有权
公开(公告)号：EP3350919A1
公开(公告)日：2018-07-25
申请号：EP16763847.7
申请日：2016-09-13
申请人： Firecomms Limited
发明人： MURPHY, Patrick , DONOVAN, Colm , CAHILL, Ciaran
IPC分类号： H03F3/08 , H03F3/45
CPC分类号： H03F3/087 , H03F3/08 , H03F3/45 , H03F3/45071 , H03F2200/267 , H03F2200/375 , H03F2200/435 , H03F2203/45151 , H03F2203/45681 , H03G3/3052 , H03H11/12 , H04B10/6931 , H04B10/697
摘要： A receiver has a differential transimpedance amplifier (4) with two inputs and two outputs. The differential transimpedance amplifier (4) provides a differential output and this is peak-detected (15, 16) to provide amplitude reference signals. The differential transimpedance amplifier output and the amplitude reference signals are fed to a differential summing amplifier (10), which provides a fully differential signal to a comparator, or to an automatic gain control circuit (5) to regulate the differential transimpedance amplifier gain. The differential summing amplifier (10) output is a fully differential signal, thereby having lower distortion for DC and burst mode receiver applications.

6. 发明授权

EP2201418B1 AN OPTICAL FIBRE CONNECTOR 有权
标题翻译：一个光纤连接器
公开(公告)号：EP2201418B1
公开(公告)日：2011-03-02
申请号：EP08808005.6
申请日：2008-10-13
申请人： Firecomms Limited
发明人： MORIARTY, Thomas , LAMBKIN, John, Douglas
IPC分类号： G02B6/36 , G02B6/38 , G02B6/42
CPC分类号： G02B6/4292 , G02B6/3809 , G02B6/3849 , G02B6/3887 , G02B6/4219
摘要： A connector (50) receives and grips an optical fibre (F) in registry with an optical element (53). Pivoting portions (22, 32) are held in default inoperative position by the spring action of moulded hinges (21, 31), at which position two shutter portions (24, 34) meet, so forming a shutter preventing the ingress of dirt to the optical element. This is the default position when the connector is not being used. As the optical fibre (F) is pushed a small distance into the connector, the pivoting portions (22, 32) are caused to pivot a small amount about the hinges (21, 22), bringing teeth (23, 33) into contact with the outside jacket of the fibre (F).The bodies (20, 30) of the inserts are forced radially away from the central axis of the connector, so providing a leaf spring force which keeps the teeth (23, 33) engaged with the jacket of the fibre (F). The shutter portions (24, 34) move out of the way of the fibre (F) and the spring action applies a force to draw the fibre (F) further into the body of the connector (50).When the fibre (F) has been pushed home the bodies of the inserts (20, 30) have been able to relax partially in the radial direction towards their normal position, but continue to exert a spring force on the teeth (23, 33). This force acts both to keep the teeth engaged in the jacket of the fibre, and to push the fibre F firmly against the optical element (53), so that the fibre F is held in the connector (50) in the engaged position.
摘要翻译：连接器（50）接收并夹持与光学元件（53）配准的光纤（F）。枢转部分（22,32）通过模制铰链（21,31）的弹簧作用保持在默认的非工作位置，在该位置两个活门部分（24,34）相遇，从而形成防止灰尘进入光学元件。这是连接器未被使用时的默认位置。当光纤（F）被推入连接器一小段距离时，使枢转部分（22,32）围绕铰链（21,22）枢转少量，使齿（23,33）与（F）的外部护套。插入物的主体（20,30）被径向地推离连接器的中心轴线，因此提供片簧弹力，其保持齿（23,33）与纤维外套（F）。遮光部分（24,34）移出光纤（F）的路径，并且弹簧作用施加力以将光纤（F）进一步拉入连接器（50）的主体中。当光纤（F）已经被推回到插入件（20,30）的主体已经能够朝着其正常位置的径向部分地部分地松弛，但是继续对牙齿（23,33）施加弹簧力。该力既用于保持啮合在光纤护套中的齿，又用于将光纤F牢固地推靠在光学元件（53）上，使得光纤F在连接器（50）中保持在啮合位置。

7. 发明公开

EP1902497A1 SURFACE EMITTING OPTICAL DEVICES 审中-公开
标题翻译：表面光学组件
公开(公告)号：EP1902497A1
公开(公告)日：2008-03-26
申请号：EP06754158.1
申请日：2006-06-02
申请人： Firecomms Limited , ALPS ELECTRIC CO., LTD.
发明人： DUGGAN, Geoffrey , LAMBKIN, John, Douglas
IPC分类号： H01S5/183 , H01L33/00
CPC分类号： H01S5/18394 , B82Y20/00 , H01L33/105 , H01S5/18311 , H01S5/18327 , H01S5/18391 , H01S5/34326 , H01S2301/166 , H01S2302/00
摘要： A visible wavelength vertical cavity surface emitting laser suitable for single mode operation has an oxide aperture (81, 82) for concentrating electrical current within a central axial portion (143) of the device and a surface relief feature (144, 146) at an output surface of the device selecting for substantially single lateral mode of operation. The relationship between oxide confinement structure diameter (140) and surface relief feature diameter (141) has been mapped to provide optimum conditions for single mode behaviour and define a region of that space to produce optimum device performance in the visible device operating wavelength band between 630 nm and 690 nm.

8. 发明授权

EP3350920B1 A TRANSCONDUCTANCE CURRENT SOURCE 有权
公开(公告)号：EP3350920B1
公开(公告)日：2020-10-07
申请号：EP16763849.3
申请日：2016-09-13
申请人： Firecomms Limited
发明人： MURPHY, Patrick , DONOVAN, Colm , CAHILL, Ciaran
IPC分类号： H03F3/345 , H03F3/08 , H03F3/50 , H03F1/22 , H03F1/32

9. 发明公开

EP3350923A1 A VOLTAGE COMPARATOR 审中-公开
公开(公告)号：EP3350923A1
公开(公告)日：2018-07-25
申请号：EP16763541.6
申请日：2016-09-13
申请人： Firecomms Limited
发明人： DONOVAN, Colm , CAHILL, Ciaran , MURPHY, Patrick
IPC分类号： H03K5/24
CPC分类号： H03K3/02337 , H03F3/16 , H03F2200/135 , H03K5/2481
摘要： A voltage comparator (1) has a high switching speed and simplicity of design. It minimizes pulse-width distortion of input digital signals when functioning as a digital input buffer in high speed communications applications. In addition it provides a simple hysteresis circuit (31) that is easily tuneable with a reference current. The hysteresis circuit (31) is dependent on a reference current. This current may be chosen to have a proportionality to temperature, supply, or another selectable parameter, and may be programmable, in order to create the desired hysteresis performance.

10. 发明公开

EP2363739A2 An optical connector 审中-公开
标题翻译： Optischer Stecker
公开(公告)号：EP2363739A2
公开(公告)日：2011-09-07
申请号：EP11004302.3
申请日：2007-06-18
申请人： Firecomms Limited
发明人： Moriarty, Thomas , Doyle, Patrick
IPC分类号： G02B6/42 , G02B6/38
CPC分类号： G02B6/4201 , G02B6/3801 , G02B6/3855 , G02B6/4256 , G02B6/4277 , G02B6/4292
摘要： An optical connector comprises a housing comprising at least one socket for a fibre termination, each socket having a resilient wall (108) for pressing against a fibre termination (F) inserted in the socket. There is a clamp comprising at least one central clamp member (105) for sliding in the housing in a direction generally parallel to the socket between outer and inner positions in the housing (101), at least one of said clamp members sliding in contact with a socket resilient wall so that it laterally urges the socket resilient wall to grip a fibre termination in the socket. In one embodiment, there are at least two sockets having a resilient wall (108) facing the other of said two sockets, and the central clamp member(105) slides between said two sockets in contact with said two socket resilient walls (108) so that it laterally urges each of them to grip a fibre termination (F).
摘要翻译：一种光学连接器包括一个壳体，该壳体包括至少一个用于光纤终端的插座，每个插座具有用于按压插入插座中的光纤终端（F）的弹性壁（108）。存在一个夹具，其包括至少一个中心夹紧构件（105），用于沿壳体（101）中的外部位置和内部位置之间大致平行于插座的方向在壳体内滑动，至少一个所述夹紧构件与插座弹性壁，使得其侧向推动插座弹性壁以夹持插座中的光纤终端。在一个实施例中，存在至少两个具有面向所述两个插座中的另一个的弹性壁（108）的插座，并且中心夹紧构件（105）在与所述两个插座弹性壁（108）接触的所述两个插座之间滑动，因此它侧向地促使它们中的每一个夹持光纤终端（F）。

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