公开(公告)号：US20070286611A1

公开(公告)日：2007-12-13

申请号：US11450396

申请日：2006-06-12

Applicant: Raviv Weber ,  Moshe Levy ,  Rafi Dvir

Inventor： Raviv Weber ,  Moshe Levy ,  Rafi Dvir

IPC: H04B10/06

CPC classification number: H04B10/693

Abstract: A transimpedance amplifier (TIA) circuit usable for burst mode communications is provided. The TIA circuit includes a TIA stage, a limiter-amplifier, and a DC restoration loop. The invention overcomes problems of the prior art relating to burst communications, such as a DC level in the output signal which can change from burst to burst and a duty-cycle distortion in large signals. This is achieved by using a DC restoration loop that ensures achieving zero DC potential within variable acquisition periods.

Abstract translation: 提供了可用于突发模式通信的跨阻放大器（TIA）电路。 TIA电路包括TIA级，限幅放大器和DC恢复环路。 本发明克服了有关突发通信的现有技术的问题，例如可以从突发到突发的输出信号中的DC电平和大信号中的占空比失真。 这通过使用直流恢复环路来实现，该环路确保在可变采集周期内实现零直流电势。

公开(公告)号：US07288983B1

公开(公告)日：2007-10-30

申请号：US11512237

申请日：2006-08-30

Applicant: Offer Schwartsglass ,  Dov Yurovich

Inventor： Offer Schwartsglass ,  Dov Yurovich

IPC: H01L35/00

CPC classification number: G05F3/08

Abstract: A programmable temperature compensation circuit having a bandgap circuit for generating a first temperature-independent voltage reference signal, VREF and a second temperature-dependent voltage signal, VTEMP. A two-input buffer amplifier is coupled to the bandgap circuit for effecting impedance transformation between inputs and respective outputs thereof. A temperature dependent difference current (TDDC) is coupled to the outputs of the buffer amplifier for producing a temperature dependent current that is a function of a difference between first and second voltage signals at its inputs; and a current amplifier is coupled to the TDDC for adjusting a baseline current at room temperature and the temperature dependency slope of the temperature dependent current.

Abstract translation: 一种可编程温度补偿电路，具有带隙电路，用于产生第一温度独立电压参考信号V REF和第二温度相关电压信号V TEMP。 双输入缓冲放大器耦合到带隙电路，用于实现输入和其输出之间的阻抗变换。 温度相关差分电流（TDDC）耦合到缓冲放大器的输出端，用于产生与其输入端的第一和第二电压信号之差的函数的温度相关电流; 并且电流放大器耦合到TDDC以调节室温下的基线电流和温度依赖电流的温度依赖性斜率。

公开(公告)号：US20070153849A1

公开(公告)日：2007-07-05

申请号：US11319776

申请日：2005-12-29

Applicant: Asaf Koren ,  Offer Schwartsglass

Inventor： Asaf Koren ,  Offer Schwartsglass

IPC: H01S3/00

CPC classification number: H01S5/042 ,  H01S5/06808

Abstract: An adaptive laser diode driver capable of driving various laser diode types as well different laser diodes from the same type, while ensuring optimal optical performance over the lifetime and temperature change of the diode. The driver adaptively changes the voltage level of input data signals to achieve full current switching as well as short rise time (tr) and fall time (tf) in extreme modulation conditions. This is preformed by constantly monitoring the output signal of a laser diode. Based on the monitored signal a modulation current is adjusted and in response the low level and high level of the input data signals are set. In accordance with one embodiment, the adaptive laser diode driver can be integrated in an optical line terminal (OLT) or an optical network unit (ONU) of a passive optical network (PON).

Abstract translation: 一种自适应激光二极管驱动器，能够驱动各种激光二极管类型以及相同类型的不同激光二极管，同时确保二极管寿命和温度变化时的最佳光学性能。 驱动器自适应地改变输入数据信号的电压电平，以实现全电流切换，以及在极端调制中的短上升时间（t SUB）和下降时间（t

公开(公告)号：US20070116466A1

公开(公告)日：2007-05-24

申请号：US11600814

申请日：2006-11-17

Applicant: Raanan Gewirtzman ,  David Ivancovsky ,  Moshe Levy ,  Igor Elkanovich ,  Offer Schwartsglass ,  Simon Hochbaum

Inventor： Raanan Gewirtzman ,  David Ivancovsky ,  Moshe Levy ,  Igor Elkanovich ,  Offer Schwartsglass ,  Simon Hochbaum

IPC: H04J14/00

CPC classification number: H04J3/1694

Abstract: An optical network unit (ONU) circuit that combines both analog and digital components is provided. The ONU circuit enhances the monitoring and diagnostic of the ONU optical interface, and thus improves the overall performance of the PON. Furthermore, the disclosed ONU circuit is integrated in a single chip and thus reduces the power consumption of an ONU system and the cost to manufacture.

Abstract translation: 提供组合模拟和数字组件的光网络单元（ONU）电路。 ONU电路增强了ONU光接口的监控和诊断，从而提高了PON的整体性能。 此外，所公开的ONU电路集成在单个芯片中，因此降低了ONU系统的功耗和制造成本。

公开(公告)号：US20060275036A1

公开(公告)日：2006-12-07

申请号：US11400380

申请日：2006-04-10

Applicant: Simon Hochbaum ,  Eli Elmoalem ,  Doron Tal ,  David Ivancovsky

Inventor： Simon Hochbaum ,  Eli Elmoalem ,  Doron Tal ,  David Ivancovsky

IPC: H04J14/00

CPC classification number: H04J14/0226 ,  H04J14/0227 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04Q11/0067 ,  H04Q2011/0045 ,  H04Q2011/0079 ,  H04Q2011/0088

Abstract: An apparatus automatically maintains bi-directional communication between an optical network unit (ONU) and a central office (CO) in a passive optical network (PON) when the CO changes from a first PON mode to a second PON mode. The apparatus senses a PON mode relating to downstream data flow from the CO to the ONU; and upon detecting a change in the PON mode from the first PON mode to the second PON mode, synchronizes the ONU to operate according to the downstream and upstream configurations of the second PON mode.