专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20040247326A1 Signal light transmitter including variable optical attenuator 审中-公开
标题翻译：信号灯发射器包括可变光衰减器
公开(公告)号：US20040247326A1
公开(公告)日：2004-12-09
申请号：US10848153
申请日：2004-05-19
申请人： Fujitsu Limited
发明人： Hiroyuki Iwata , Yoshio Nabeyama , Hiroshi Oikawa
IPC分类号： H04B010/04
CPC分类号： G02F1/092 , G02F1/0123 , G02F2203/48 , H04B10/505 , H04B10/50575 , H04B10/564
摘要： An optical transmitter including a variable optical attenuator and a controller. The variable optical attenuator attenuates a light to be transmitted from the optical transmitter in accordance with a drive current of the attenuator. The attenuator has an attenuation versus drive current characteristic curve with a peak so that attenuation increases with increasing drive current on a side of the peak ascending to the peak and attenuation decreases with increasing drive current at an opposite side of the peak descending from the peak. The controller monitors the attenuated light and controls the drive current to maintain an attenuation amount near the peak. The attenuator is, for example, a Faraday rotator.
摘要翻译：一种包括可变光衰减器和控制器的光发射机。可变光衰减器根据衰减器的驱动电流衰减要从光发射器发射的光。衰减器具有衰减与驱动电流特性曲线的峰值，使得衰减随着峰值上升的驱动电流的增加而增加，并且衰减随着从峰值下降的峰值的相对侧的增加的驱动电流而减小。控制器监视衰减的光并控制驱动电流以保持接近峰值的衰减量。衰减器是例如法拉第转子。

2. 发明申请

US20040247324A1 Filtered three-level transmitter 审中-公开
标题翻译：滤波三电平变送器
公开(公告)号：US20040247324A1
公开(公告)日：2004-12-09
申请号：US10775053
申请日：2004-02-09
发明人： Jason B. Stark
IPC分类号： H04B010/04
CPC分类号： H04B10/508 , H04B10/25137 , H04B10/505 , H04B10/541
摘要： A filtered three-level transmitter is provided by filtering a binary electrical drive signal to produce a unit modulation pulse spanning four-bit-periods and describable by three parameters. One or more of the three parameters of the unit modulation pulse are adjusted to optimize a figure of merit associated with performance of an optical transmission system. A three-level electrical drive signal is then generated from the unit modulation pulse for input to a Mach-Zehnder modulator. The three parameters of the unit modulation pulse are each defined over a half-bit period and together are sufficient to describe a line-coded transmission eye diagram. The parameters are adjusted so that an optical transmission system in which the inventive transmitter is utilized is optimized with a set level of net chromatic dispersion.
摘要翻译：通过对二进制电驱动信号进行滤波以产生跨越四位周期的单位调制脉冲并可由三个参数描述来提供滤波的三电平发射机。调整单位调制脉冲的三个参数中的一个或多个以优化与光传输系统的性能相关联的品质因数。然后从单位调制脉冲产生三电平电驱动信号，以输入到马赫 - 曾德调制器。单位调制脉冲的三个参数分别在半位周期内定义，并且一起足以描述一条线路编码的传输眼图。调整参数，使得利用本发明的发射机的光传输系统以设定的净色散级别进行优化。

3. 发明申请

US20040240890A1 Methods and apparatus for controlling devices in a networked lighting system 有权
标题翻译：用于控制网络照明系统中设备的方法和装置
公开(公告)号：US20040240890A1
公开(公告)日：2004-12-02
申请号：US10842257
申请日：2004-05-10
申请人： Color Kinetics, Inc.
发明人： Ihor A. Lys , Frederick M. Morgan
IPC分类号： H04B010/04
CPC分类号： H05B37/029 , F21S4/10 , F21V21/002 , F21V23/04 , F21Y2115/10 , H01R4/24 , H05B37/0254
摘要： Methods and apparatus for computer-based control of light sources in a networked lighting system. In one example, a plurality of LED-based lighting systems are arranged as computer controllable nulllight strings.null Applications contemplated for such light strings include, but are not limited to, decorative and entertainment-oriented lighting applications (e.g., Christmas tree lights, display lights, theme park lighting, video and other game arcade lighting, etc.). Via computer control, one or more such light strings may provide a variety of complex temporal and color-changing lighting effects. In one example, lighting data is communicated in a given light string in a serial manner, according to a variety of different data transmission and processing schemes. In another example, individual lighting systems of a light string are coupled together via a variety of different conduit configurations to provide for easy coupling and arrangement of multiple light sources constituting the light string. In yet another example, small LED-based lighting systems capable of being arranged in a light string configuration are manufactured as integrated circuits including data processing circuitry and control circuitry for LED light sources, and are packaged along with LEDs for convenient coupling to a conduit to connect multiple lighting systems.
摘要翻译：网络照明系统中光源计算机控制的方法和装置。在一个示例中，多个基于LED的照明系统被布置为计算机可控的“灯串”。考虑到这种灯串的应用包括但不限于装饰和娱乐导向的照明应用（例如，圣诞树灯，显示灯，主题公园照明，视频和其他游戏商场照明等）。通过计算机控制，一个或多个这样的灯串可以提供各种复杂的时间和颜色变化的照明效果。在一个示例中，根据各种不同的数据传输和处理方案，照明数据以串行方式在给定的光串中传送。在另一个示例中，灯串的各个照明系统通过各种不同的导管结构耦合在一起，以提供构成光束的多个光源的容易的耦合和布置。在另一个例子中，能够被布置成灯串配置的小型基于LED的照明系统被制造为包括用于LED光源的数据处理电路和控制电路的集成电路，并且与LED封装以方便地连接到导管连接多个照明系统。

4. 发明申请

US20040223768A1 High speed, silicon-based electro-optic modulator 有权
标题翻译：高速硅基电光调制器
公开(公告)号：US20040223768A1
公开(公告)日：2004-11-11
申请号：US10842064
申请日：2004-05-10
发明人： Kalpendu Shastri , Prakash Gothoskar , Margaret Ghiron , Vipulkumar Patel , Robert Keith Montgomery , Soham Pathak , Katherine A. Yanushefski
IPC分类号： H04B010/04
CPC分类号： G02F1/025 , G02F1/0121 , G02F1/225 , G02F2001/0152 , H04B10/505 , H04B10/58
摘要： An electro-optic modulator arrangement for achieving switching speeds greater than 1 Gb/s utilizes pre-emphasis pulses to accelerate the change in refractive index of the optical waveguide used to form the electro-optic modulator. In one embodiment, a feedback loop may be added to use a portion of the modulated optical output signal to adjust the magnitude and duration of the pre-emphasis pulses, as well as the various reference levels used for modulated. For free carrier-based electro-optic modulators, including silicon-based electro-optic modulators, the pre-emphasis pulses are used to accelerate the movement of free carriers at the transitions between input signal data values.
摘要翻译：用于实现大于1Gb / s的开关速度的电光调制器装置利用预加重脉冲来加速用于形成电光调制器的光波导的折射率变化。在一个实施例中，可以添加反馈回路以使用调制的光输出信号的一部分来调整预加重脉冲的幅度和持续时间以及用于调制的各种参考电平。对于基于硅的电光调制器的自由载体的电光调制器，预加重脉冲用于加速在输入信号数据值之间的转变处的自由载流子的移动。

5. 发明申请

US20040209578A1 EMI shield for reducing clock jitter of a transceiver 有权
标题翻译： EMI屏蔽，用于减少收发器的时钟抖动
公开(公告)号：US20040209578A1
公开(公告)日：2004-10-21
申请号：US10033429
申请日：2001-12-27
发明人： Craig Schultz , Joshua Oen
IPC分类号： H04B010/00 , H04B010/04
CPC分类号： H03L7/099 , H01L23/552 , H01L2924/16152 , H05K3/341 , H05K9/0022
摘要： A transmitter comprises an oscillator, a phase lock loop, a serializer, and an electrical-to-optical converter. The oscillator is enclosed in a metal shield. The metal shield is soldered to a ground ring of the printed circuit board. In one embodiment, the oscillator is voltage-controlled oscillator.
摘要翻译：发射机包括振荡器，锁相环，串行器和电 - 光转换器。振荡器封装在金属屏蔽中。金属屏蔽焊接到印刷电路板的接地环。在一个实施例中，振荡器是压控振荡器。

6. 发明申请

US20040208638A1 Communication system using entangled photons 审中-公开
标题翻译：使用纠缠光子的通信系统
公开(公告)号：US20040208638A1
公开(公告)日：2004-10-21
申请号：US10140576
申请日：2002-05-07
发明人： David B. Jansen
IPC分类号： H04B010/00 , H04B010/04
CPC分类号： H04B10/2513
摘要： A system and method for optical communication employing entangled photons. A modulator selectively extends the optical path length of one conjugate photon of each entangled photon pair, thereby incorporating a bit value in the entangled photon pair. The entangled photon pair is transmitted and passed through a spectrometer, which separates the photons according to their frequency and directs them to a coincidence counter. A decline in a curve of a number of coincidence counts plotted against conjugate photon frequency disparity is employed to extract the bit value.
摘要翻译：一种采用纠缠光子的光通信系统和方法。调制器选择性地扩展每个纠缠的光子对的一个共轭光子的光程长度，从而在纠缠的光子对中并入比特值。纠缠的光子对被传输并通过光谱仪，光谱仪根据其频率分离光子并将它们引导到重合计数器。采用多个重合计数曲线相对于共轭光子频率差异的下降来提取比特值。

7. 发明申请

US20040208428A1 Wavelength-multiplexed narrow-bandwidth optical transmitter and wavelength-multiplexed vestigial-side-band optical transmitter 审中-公开
标题翻译：波长复用窄带光发射机和波长复用残留边带光发射机
公开(公告)号：US20040208428A1
公开(公告)日：2004-10-21
申请号：US10083257
申请日：2002-02-27
发明人： Nobuhiko Kikuchi , Shigenori Hayase , Ryoji Takeyari
IPC分类号： G02B006/293 , H04B010/04
CPC分类号： G02B6/4246 , G02B6/29358 , G02B6/2938 , H04B10/503 , H04B10/5165
摘要： Objects of the present invention are to reduce the number of optical filters, and to improve crosstalk characteristics of periodic optical filters. WDM signals are converted into vestigial-side-band signals collectively using a periodic optical filter. As an example, light signals having odd number wavelengths (wavelengths null1, null3, null5) and light signals having even number wavelengths (wavelengths null2, null4, null6) are wavelength-multiplexed in the first optical wavelength multiplexer, and are then filtered by a periodic narrow band-pass optical filter to convert the light signals into vestigial-side-band (VSB) signals. Then, the vestigial-side-band signals are combined by the second optical wavelength multiplexer. Such an interleave configuration enables suppression of crosstalk caused by adjacent channels.
摘要翻译：本发明的目的是减少光学滤波器的数量，并且改善周期性滤光器的串扰特性。 WDM信号被共同地使用周期性滤光器转换成残留边带信号。作为示例，具有奇数波长（波长λ1，λ3，λ5）和具有偶数波长（波长λ2，λ4，λ6）的光信号的光信号在第一光学波长多路复用器中进行波长多路复用，然后由周期性窄带通滤光片将光信号转换为残留边带（VSB）信号。然后，残留边带信号由第二光学波长多路复用器组合。这种交错配置能够抑制由相邻信道引起的串扰。

8. 发明申请

US20040190911A1 System and method of high-speed transmission and appropriate transmission apparatus 失效
标题翻译：高速传输系统和方法及适当的传输装置
公开(公告)号：US20040190911A1
公开(公告)日：2004-09-30
申请号：US10822029
申请日：2004-04-08
申请人： Pirelli Cavi E Sistemi S.P.A. , Cisco Photonics Italy S.r.L.
发明人： Pierluigi Franco , Giorgio Grasso , Matjaz Vidmar
IPC分类号： H04B010/04
CPC分类号： H04B10/505 , H04B10/25077 , H04B10/5051 , H04B10/508
摘要： Soliton or soliton-like optical pulses with characteristics adapted to propagation in an optical line for RZ type transmission are generated by modulating a continuous optical signal (1) by means of a modulator (2) which is substantially devoid of chirping, in which the modulator drive signal comprises at least one frequency (4) and one harmonic (5) thereof superimposed on each other (7). A high-speed optical transmission system is rendered independent of the type of transmitter or of signals sent to it if it comprises an adaptation unit (32) receiving the original optical pulses (30) and capable of generating corresponding pulsed signals (63) of RZ type.
摘要翻译：通过利用基本上没有啁啾的调制器（2）调制连续的光信号（1）来产生具有适于在用于RZ型传输的光线路中传播的特性的孤子或孤子样光脉冲，其中调制器驱动信号包括彼此重叠的至少一个频率（4）和一个谐波（5）（7）。如果高速光传输系统包括接收原始光脉冲（30）并能够产生RZ的对应脉冲信号（63）的适配单元（32），则高速光传输系统被独立于发射机的类型或发送给它的信号，类型。

9. 发明申请

US20040161249A1 Optical transmitter 审中-公开
标题翻译：光发射机
公开(公告)号：US20040161249A1
公开(公告)日：2004-08-19
申请号：US10776265
申请日：2004-02-12
申请人： Fujitsu Limited
发明人： Atsushi Suda , Akihiko Hayashi
IPC分类号： H04B010/04
CPC分类号： H04B10/505 , H04B10/503 , H04B10/50575 , H04B10/588 , H04B2210/075
摘要： In addition to a pilot signal for the conventional operating point control, a second pilot signal with a different frequency is superimposed on an optical signal. Then, the modulation component of an optical signal corresponding to the second pilot signal is detected from the output of an external modulator, the phase of the modulation component of the optical signal is compared with the phase of the second pilot signal, and as a result, an amplitude is obtained. The amplitude of a signal indicating a phase difference obtained when the amplitude of the driving waveform of the external modulator is different from the Vnull of the external modulator is detected, using the amplitude of the signal indicating the phase difference obtained when the amplitude of the driving waveform is the same as Vnull, as a reference, and the amplitude of the driving waveform.
摘要翻译：除了用于常规工作点控制的导频信号之外，具有不同频率的第二导频信号被叠加在光信号上。然后，从外部调制器的输出检测与第二导频信号对应的光信号的调制分量，将光信号的调制分量的相位与第二导频信号的相位进行比较，结果，获得振幅。表示当外部调制器的驱动波形的振幅与外部调制器的Vpi不同时获得的相位差的信号的幅度使用表示当驾驶的幅度获得的相位差的信号的幅度被检测时波形与Vpi相同，作为参考，以及驱动波形的振幅。

10. 发明申请

US20040141760A1 Apparatus and method for providing a linear effect 有权
标题翻译：用于提供线性效应的装置和方法
公开(公告)号：US20040141760A1
公开(公告)日：2004-07-22
申请号：US10755156
申请日：2004-01-12
发明人： Peter David Wynne Willson
IPC分类号： H04B010/04
CPC分类号： G08B7/066 , F21S4/26 , F21S4/28 , F21S8/032 , F21S10/02 , F21V23/00 , F21V23/04 , F21W2131/406 , F21Y2107/50 , F21Y2115/10 , G09F9/33 , G09F19/22 , H05B37/029 , Y10S362/80
摘要： Apparatus (11) for providing an output of: (i) electromagnetic waves; (ii) sound waves; or (iii) both electromagnetic and sound waves comprises a power supply, support structure (13), control means and a plurality of transmitters (15) arranged in a linear array on said support structure (13) and in electrical contact with said control means, wherein each transmitter (15) is controllable individually and independently from other transmitters. To provide a coloured lighting effect, apparatus can comprise a first source of light of a first colour, a second source of light of a second colour, different from the first colour and a diffuser (12) for diffusing the light from the first and second sources so that the diffused light from the diffuser is perceived to have different colour, shade or hue. Uses of the apparatus are described, for applications such as entertainment, safety, directional and speed control, such as in providing a linear sound and/or lighting effect in which the output is perceived as emanating from a substantially continuous sound and/or light source rather than from a plurality of individual sources.
摘要翻译：用于提供以下输出的装置（11）：（i）电磁波; （ii）声波; 或（iii）电磁波和声波都包括电源，支撑结构（13），控制装置和布置在所述支撑结构（13）上的线性阵列中并与所述控制装置电接触的多个发射器（15），其中每个发射器（15）可独立地和独立于其它发射器控制。为了提供彩色照明效果，设备可以包括第一颜色的第一光源，与第一颜色不同的第二颜色的第二光源和用于将来自第一和第二颜色的光扩散的扩散器（12）来源，使得来自扩散器的漫射光被感知为具有不同的颜色，阴影或色相。描述了对于诸如娱乐，安全，定向和速度控制之类的应用的设备的使用，例如提供线性声音和/或照明效果，其中输出被感知为从基本连续的声音和/或光源发出而不是来自多个单独的来源。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式