公开(公告)号：WO2009055035A2

公开(公告)日：2009-04-30

申请号：PCT/US2008012122

申请日：2008-10-24

Applicant: MINDSPEED TECH INC ,  ZOU HEHONG ,  SHIVARAM KRISHNA ,  DRAPER DANIEL

Inventor： ZOU HEHONG ,  SHIVARAM KRISHNA ,  DRAPER DANIEL

IPC: H03F3/08 ,  H04B10/06

CPC classification number: H03F3/082

Abstract: The invention relates to amplifiers and in particular, to a transimpedance amplifier for high rate applications. Disclosed is a two stage transimpedance amplifier having a first stage comprising an amplifier and a load and a second stage comprising an amplifier and a resistor. Negative feedback is provided through a feedback resistor. Only two voltage conversions occur which reduces phase distortion, as compared to three stage transimpedance amplifiers which perform 3 voltage conversions.

Abstract translation: 本发明涉及放大器，特别涉及用于高速应用的跨阻放大器。 公开了具有包括放大器和负载的第一级的二级跨阻抗放大器，以及包括放大器和电阻器的第二级。 通过反馈电阻提供负反馈。 与执行3次电压转换的三级跨阻抗放大器相比，仅发生两次电压转换，从而降低相位失真。

公开(公告)号：WO2009088453A2

公开(公告)日：2009-07-16

申请号：PCT/US2008014051

申请日：2008-12-24

Applicant: MINDSPEED TECH INC ,  BAZZANI CRISTIANO ,  DRAPER DANIEL ,  MCDONALD KEVIN B

Inventor： BAZZANI CRISTIANO ,  DRAPER DANIEL ,  MCDONALD KEVIN B

IPC: H01S3/02 ,  H01S3/00

CPC classification number: H01S5/06209 ,  G02B27/48 ,  H01S5/042 ,  H01S5/06216 ,  H01S5/06246 ,  H01S5/0652 ,  H04N9/3129 ,  H04N9/3161

Abstract: An optical signal generator is configured with an associated control system and driver configured to reduce speckle. Speckle reduction occurs by pulsing the drive signal between a first current level and a second current level. These pulses force the optical signal generator to introduce oscillations into the optical signal. The coherence of the emitted light is reduced during the period of oscillations in the optical signal, which reduces speckle. In one embodiment, the pulsing of the drive signal brings the drive signal down to a level near or below threshold, which in turn intermittently turns off the optical signal output. Returning the optical signal to a desired optical output intensity introduces the speckle reducing oscillation. The pulse frequency, and duty cycle is controlled by a duty cycle control signal to modulate overall optical power and adjust amount of despeckle.

Abstract translation: 光学信号发生器配置有相关联的控制系统和驱动器，其被配置为减少斑点。 通过在第一电流电平和第二电流电平之间脉冲驱动信号发生斑点减少。 这些脉冲迫使光信号发生器将振荡引入光信号。 在光信号的振荡期间，发射光的相干性降低，从而减少斑点。 在一个实施例中，驱动信号的脉冲将驱动信号降低到接近或低于阈值的水平，其依次间歇性地关闭光信号输出。 将光信号恢复到期望的光输出强度，导致减少散斑振荡。 脉冲频率和占空比由占空比控制信号控制，以调整整体光功率并调整去斑量。

公开(公告)号：WO2009145819A3

公开(公告)日：2010-03-18

申请号：PCT/US2009001971

申请日：2009-03-30

Applicant: MINDSPEED TECH INC ,  BAZZANI CRISTIANO ,  DRAPER DANIEL

Inventor： BAZZANI CRISTIANO ,  DRAPER DANIEL

IPC: H04N5/74 ,  G03B21/00

CPC classification number: H04N9/3179 ,  G09G3/2011 ,  G09G3/2018 ,  G09G3/3426 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2330/021 ,  H04N9/3155 ,  H04N9/3161

Abstract: A projection system with one or more light sources reduced power consumption and optional scanning capability is disclosed. A controller processes image data to generate light source control signals and pixel screen control signals which are coordinated to generate an image. Reductions in power consumption occur by matching the light output from the light source to the brightest pixel(s) in the pixel screen for a particular frame. By setting the light output level to an intensity or duration matched to only the maximum level corresponding to a image frame, power consumption is reduced as compared to an embodiment which sets the light source output to its maximum level or maximum duration. The pixel screen, which may be an LCD screen, sets pixel areas corresponding to the brightest pixels as transparent and other, less bring pixels on the pixel screen are set to appropriate levels of reduced transparency.

Abstract translation: 具有一个或多个光源的投影系统降低了功耗并且公开了可选的扫描能力。 控制器处理图像数据以产生协调以产生图像的光源控制信号和像素屏幕控制信号。 通过将来自光源的光输出与特定帧的像素屏幕中的最亮像素匹配来降低功耗。 通过将光输出电平设置为仅与对应于图像帧的最大电平匹配的强度或持续时间，与将光源输出设置为其最大电平或最大持续时间的实施例相比，功率消耗被降低。 可以是LCD屏幕的像素屏幕将对应于最亮像素的像素区域设置为透明等，将像素屏幕上较少的像素设置为降低的透明度的适当水平。

公开(公告)号：WO2009145819A2

公开(公告)日：2009-12-03

申请号：PCT/US2009/001971

申请日：2009-03-30

Applicant: MINDSPEED TECHNOLOGIES, INC. ,  BAZZANI, Cristiano ,  DRAPER, Daniel

Inventor： BAZZANI, Cristiano ,  DRAPER, Daniel

IPC: H04N5/74 ,  G03B21/00

CPC classification number: H04N9/3179 ,  G09G3/2011 ,  G09G3/2018 ,  G09G3/3426 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2330/021 ,  H04N9/3155 ,  H04N9/3161

Abstract: A projection system with one or more light sources reduced power consumption and optional scanning capability is disclosed. A controller processes image data to generate light source control signals and pixel screen control signals which are coordinated to generate an image. Reductions in power consumption occur by matching the light output from the light source to the brightest pixel(s) in the pixel screen for a particular frame. By setting the light output level to an intensity or duration matched to only the maximum level corresponding to a image frame, power consumption is reduced as compared to an embodiment which sets the light source output to its maximum level or maximum duration. The pixel screen, which may be an LCD screen, sets pixel areas corresponding to the brightest pixels as transparent and other, less bring pixels on the pixel screen are set to appropriate levels of reduced transparency.

Abstract translation: 具有一个或多个光源的投影系统降低了功耗并且公开了可选的扫描能力。 控制器处理图像数据以产生协调以产生图像的光源控制信号和像素屏幕控制信号。 通过将来自光源的光输出与特定帧的像素屏幕中的最亮像素匹配来降低功耗。 通过将光输出电平设置为仅与对应于图像帧的最大电平匹配的强度或持续时间，与将光源输出设置为其最大电平或最大持续时间的实施例相比，功率消耗被降低。 可以是LCD屏幕的像素屏幕将对应于最亮像素的像素区域设置为透明等，将像素屏幕上较少的像素设置为降低的透明度的适当水平。

公开(公告)号：WO2009088453A3

公开(公告)日：2009-07-16

申请号：PCT/US2008/014051

申请日：2008-12-24

Applicant: MINDSPEED TECHNOLOGIES, INC. ,  BAZZANI, Cristiano ,  DRAPER, Daniel ,  McDONALD, Kevin, B.

Inventor： BAZZANI, Cristiano ,  DRAPER, Daniel ,  McDONALD, Kevin, B.

IPC: H01S3/02 ,  H01S3/00

Abstract: An optical signal generator is configured with an associated control system and driver configured to reduce speckle. Speckle reduction occurs by pulsing the drive signal between a first current level and a second current level. These pulses force the optical signal generator to introduce oscillations into the optical signal. The coherence of the emitted light is reduced during the period of oscillations in the optical signal, which reduces speckle. In one embodiment, the pulsing of the drive signal brings the drive signal down to a level near or below threshold, which in turn intermittently turns off the optical signal output. Returning the optical signal to a desired optical output intensity introduces the speckle reducing oscillation. The pulse frequency, and duty cycle is controlled by a duty cycle control signal to modulate overall optical power and adjust amount of despeckle.

公开(公告)号：WO2006020481A1

公开(公告)日：2006-02-23

申请号：PCT/US2005/027661

申请日：2005-08-03

Applicant: MINDSPEED TECHNOLOGIES ,  REINTJES, Maurice, W. ,  DRAPER, Daniel ,  SADA, Gilberto, I.

Inventor： REINTJES, Maurice, W. ,  DRAPER, Daniel ,  SADA, Gilberto, I.

IPC: H04B10/08

CPC classification number: H04B10/2503

Abstract: A method and apparatus configured to transmit module data between optic modules over a primary communication channel, such as an optic fiber configured to carry network data or outgoing data. A control center may send the module data, such as any type of DDMI data, over the optic fiber to control one or more aspects of the optic module system. The optic module may also be configured to send module data regarding any aspect of module status or operation, to a control center, via the optic fiber. Use of the primary communication channel, normally reserved for only network data, allow for module to module communication or module to control center communication without need of cumbersome two wire interface or supplement channels. Optic module data communication may occur concurrent with network data transmission. Optic module data back-up may occur via the optic channel to provide rapid re-load of important optic module data.

Abstract translation: 一种被配置为通过主要通信信道（诸如被配置为承载网络数据或输出数据的光纤）在光学模块之间传输模块数据的方法和装置。 控制中心可以通过光纤发送模块数据，例如任何类型的DDMI数据，以控制光模块系统的一个或多个方面。 光学模块还可以被配置为经由光纤将关于模块状态或操作的任何方面的模块数据发送到控制中心。 使用主通信通道，通常仅保留网络数据，允许模块到模块通信或模块来控制中心通信，而不需要繁琐的两线接口或补充通道。 光模块数据通信可能与网络数据传输并发。 光模块数据备份可能通过光通道进行，以便重新加载重要的光模块数据。

公开(公告)号：WO2006055244A1

公开(公告)日：2006-05-26

申请号：PCT/US2005/039565

申请日：2005-10-31

Applicant: MINDSPEED TECHNOLOGIES ,  SADA, I., Gilberto ,  REINTJES, M., Maurice ,  JONES, R., Keith ,  DRAPER, Daniel

Inventor： SADA, I., Gilberto ,  REINTJES, M., Maurice ,  JONES, R., Keith ,  DRAPER, Daniel

IPC: H04B10/155 ,  H04B10/08 ,  H01S5/00 ,  H01S5/068

CPC classification number: H04B10/07 ,  H01S5/0612 ,  H01S5/0617 ,  H01S5/06804 ,  H01S5/06832

Abstract: A method and apparatus is disclosed for optic signal power control to maintain a desired or optimum optic signal power level. During start-up, a default or target value from memory may be utilized to bias or otherwise control operation of an optic signal generator or driver. During operation, pre-stored values may continue to be utilized or an open loop or closed loop control system may be utilized. An open loop control system may incorporate a temperature module or a timer module to account for changes in environment or changes due to aging that may undesirably affect system operation. A closed loop control system may incorporate one or more feedback loops that generate a compensation value to account for detected changes. In one configuration one or more peak values of the actual optic signal, or a portion thereof, are detected and processed to generate the compensation signal.

Abstract translation: 公开了用于光信号功率控制以维持期望或最佳光信号功率电平的方法和装置。 在启动期间，来自存储器的默认值或目标值可用于偏置或以其他方式控制光信号发生器或驱动器的操作。 在操作期间，可以继续使用预先存储的值，或者可以利用开环或闭环控制系统。 开环控制系统可以包括温度模块或定时器模块以考虑环境的变化或由于可能不期望地影响系统操作的老化引起的变化。 闭环控制系统可以包括产生补偿值以考虑检测到的变化的一个或多个反馈回路。 在一个配置中，检测并处理实际光信号或其一部分的一个或多个峰值以产生补偿信号。

公开(公告)号：WO2009055035A3

公开(公告)日：2009-04-30

申请号：PCT/US2008/012122

申请日：2008-10-24

Applicant: MINDSPEED TECHNOLOGIES, INC. ,  ZOU, Hehong ,  SHIVARAM, Krishna ,  DRAPER, Daniel

Inventor： ZOU, Hehong ,  SHIVARAM, Krishna ,  DRAPER, Daniel

IPC: H03F3/08 ,  H04B10/06

Abstract: The invention relates to amplifiers and in particular, to a transimpedance amplifier for high rate applications. Disclosed is a two stage transimpedance amplifier having a first stage comprising an amplifier and a load and a second stage comprising an amplifier and a resistor. Negative feedback is provided through a feedback resistor. Only two voltage conversions occur which reduces phase distortion, as compared to three stage transimpedance amplifiers which perform 3 voltage conversions.