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1. 发明授权

US08173947B2 Scanning mirror position determination 有权
标题翻译：扫描镜位置确定
公开(公告)号：US08173947B2
公开(公告)日：2012-05-08
申请号：US12556419
申请日：2009-09-09
申请人： Mark Champion , Steve Holmes , Lakhbir Singh Gandhi , Harpal Singh Sira , Bruce C. Rothaar
发明人： Mark Champion , Steve Holmes , Lakhbir Singh Gandhi , Harpal Singh Sira , Bruce C. Rothaar
IPC分类号： H01J40/14
CPC分类号： H04N3/08 , G02B26/108 , H04N9/3129
摘要： A scanning projector includes a mirror that scans in two dimensions, at least one of which is sinusoidal. A position sensor provides a position signal that represents an angular displacement of the mirror. The position signal is amplified by an amplifier with time variant characteristics. A beam position determination component compensates for the time variant characteristics of the amplifier.
摘要翻译：扫描投影仪包括以二维扫描的反射镜，其中至少一个是正弦曲线。位置传感器提供表示反射镜的角位移的位置信号。位置信号由具有时变特性的放大器放大。波束位置确定部件补偿放大器的时变特性。

2. 发明申请

US20110058045A1 Scanning Mirror Position Determination 有权
标题翻译：扫描镜像位置确定
公开(公告)号：US20110058045A1
公开(公告)日：2011-03-10
申请号：US12556419
申请日：2009-09-09
申请人： Mark Champion , Steve Holmes , Lakhbir Singh Gandhi , Harpal Singh Sira , Bruce C. Rothaar
发明人： Mark Champion , Steve Holmes , Lakhbir Singh Gandhi , Harpal Singh Sira , Bruce C. Rothaar
IPC分类号： H04N3/08 , G02B26/10 , G01B7/30
CPC分类号： H04N3/08 , G02B26/108 , H04N9/3129
摘要： A scanning projector includes a mirror that scans in two dimensions, at least one of which is sinusoidal. A position sensor provides a position signal that represents an angular displacement of the mirror. The position signal is amplified by an amplifier with time variant characteristics. A beam position determination component compensates for the time variant characteristics of the amplifier.
摘要翻译：扫描投影仪包括以二维扫描的反射镜，其中至少一个是正弦曲线。位置传感器提供表示反射镜的角位移的位置信号。位置信号由具有时变特性的放大器放大。波束位置确定部件补偿放大器的时变特性。

3. 发明申请

US20100073748A1 Scanning Mirror Control 有权
标题翻译：扫描镜像控制
公开(公告)号：US20100073748A1
公开(公告)日：2010-03-25
申请号：US12235500
申请日：2008-09-22
申请人： Steve Holmes , Clint Charles Rollins , Margaret K. Brown , Michael L. Schaaf , Bruce C. Rothaar , Robert J. Jackson , Lifford McLauchlan , Mehrube Mehrubeoglu , Gregory Schneider
发明人： Steve Holmes , Clint Charles Rollins , Margaret K. Brown , Michael L. Schaaf , Bruce C. Rothaar , Robert J. Jackson , Lifford McLauchlan , Mehrube Mehrubeoglu , Gregory Schneider
IPC分类号： G02B26/10
CPC分类号： G02B26/121 , G05B13/024 , H02K41/0354 , H02P29/50
摘要： A scanning beam projection system includes a scanning mirror having a fast-scan axis and a slow-scan axis. Movement on the slow-scan axis is controlled by a slow-scan scanning mirror control system. The control system receives position information describing angular displacement of the mirror. An outer loop of the control system operates in the frequency domain and determines harmonic drive coefficients for a scanning mirror drive signal. An inner loop of the control system operates in the time domain and compensates for a scanning mirror resonant vibration mode at a frequency within the frequency band occupied by the harmonic drive coefficients.
摘要翻译：扫描光束投影系统包括具有快速扫描轴和慢扫描轴的扫描镜。慢扫描轴上的移动由慢扫描扫描镜控制系统控制。控制系统接收描述镜的角位移的位置信息。控制系统的外环在频域中工作，并确定扫描镜驱动信号的谐波驱动系数。控制系统的内部环路在时域中工作，并且以谐波驱动系数占据的频带内的频率补偿扫描镜共振振动模式。

4. 发明授权

US07952783B2 Scanning mirror control 有权
标题翻译：扫描镜控制
公开(公告)号：US07952783B2
公开(公告)日：2011-05-31
申请号：US12235500
申请日：2008-09-22
申请人： Steve Holmes , Clint Charles Rollins , Margaret K. Brown , Michael L. Schaaf , Bruce C. Rothaar , Robert J. Jackson , Lifford McLauchlan , Mehrube Mehrubeoglu , Gregory Schneider
发明人： Steve Holmes , Clint Charles Rollins , Margaret K. Brown , Michael L. Schaaf , Bruce C. Rothaar , Robert J. Jackson , Lifford McLauchlan , Mehrube Mehrubeoglu , Gregory Schneider
IPC分类号： G02B26/08
CPC分类号： G02B26/121 , G05B13/024 , H02K41/0354 , H02P29/50
摘要： A scanning beam projection system includes a scanning mirror having a fast-scan axis and a slow-scan axis. Movement on the slow-scan axis is controlled by a slow-scan scanning mirror control system. The control system receives position information describing angular displacement of the mirror. An outer loop of the control system operates in the frequency domain and determines harmonic drive coefficients for a scanning mirror drive signal. An inner loop of the control system operates in the time domain and compensates for a scanning mirror resonant vibration mode at a frequency within the frequency band occupied by the harmonic drive coefficients.
摘要翻译：扫描光束投影系统包括具有快速扫描轴和慢扫描轴的扫描镜。慢扫描轴上的移动由慢扫描扫描镜控制系统控制。控制系统接收描述镜的角位移的位置信息。控制系统的外环在频域中工作，并确定扫描镜驱动信号的谐波驱动系数。控制系统的内部环路在时域中工作，并且以谐波驱动系数占据的频带内的频率补偿扫描镜共振振动模式。

5. 发明申请

US20110080533A1 Dithering Laser Drive Apparatus 审中-公开
标题翻译：抖动激光驱动装置
公开(公告)号：US20110080533A1
公开(公告)日：2011-04-07
申请号：US12574317
申请日：2009-10-06
申请人： Mark Champion , Bruce C. Rothaar
发明人： Mark Champion , Bruce C. Rothaar
IPC分类号： H04N5/74 , H01S3/10
CPC分类号： H04N9/3173 , H04N9/3129
摘要： A laser drive apparatus includes a plurality of transistors driven by different comparators. The different comparators receive an analog drive value and different ramp signals and produce pulse width modulated output signals. A calibration feedback circuit may be used to calibrate a power supply that provides a power supply voltage. A dither circuit may be used to reduce the number of bits received by the laser drive apparatus.
摘要翻译：激光驱动装置包括由不同比较器驱动的多个晶体管。不同的比较器接收模拟驱动值和不同的斜坡信号并产生脉宽调制输出信号。校准反馈电路可用于校准提供电源电压的电源。可以使用抖动电路来减少由激光驱动装置接收的位数。

6. 发明申请

US20100315552A1 Asynchronous Scanning Display Projection 有权
标题翻译：异步扫描显示投影
公开(公告)号：US20100315552A1
公开(公告)日：2010-12-16
申请号：US12484655
申请日：2009-06-15
申请人： Bruce C. Rothaar , Mark Champion
发明人： Bruce C. Rothaar , Mark Champion
IPC分类号： G02B26/10 , H04N9/475
CPC分类号： G02B26/101 , G02B26/085 , G02B27/104 , G02B27/145 , G09G3/025 , G09G5/18 , G09G2330/06 , G09G2340/0407 , H03L7/093 , H03L2207/50 , H04N9/3129 , H04N9/3185 , H04N9/3194
摘要： A scanning projector includes a mirror that scans in two dimensions, at least one of which is sinusoidal. A digital phase lock loop locks to the sinusoidal movement of the mirror. A free-running pixel clock is provided. An interpolation component interpolates pixel intensity data from adjacent pixels based on the position of the mirror when a pixel clock arrives.
摘要翻译：扫描投影仪包括以二维扫描的反射镜，其中至少一个是正弦曲线。数字锁相环锁定到镜子的正弦运动。提供了一个自由运行的像素时钟。当像素时钟到达时，内插分量基于反射镜的位置从相邻像素内插像素强度数据。

7. 发明授权

US08634024B2 Asynchronous scanning display projection 有权
标题翻译：异步扫描显示投影
公开(公告)号：US08634024B2
公开(公告)日：2014-01-21
申请号：US12484655
申请日：2009-06-15
申请人： Bruce C. Rothaar , Mark Champion
发明人： Bruce C. Rothaar , Mark Champion
IPC分类号： H04N5/04
CPC分类号： G02B26/101 , G02B26/085 , G02B27/104 , G02B27/145 , G09G3/025 , G09G5/18 , G09G2330/06 , G09G2340/0407 , H03L7/093 , H03L2207/50 , H04N9/3129 , H04N9/3185 , H04N9/3194
摘要： A scanning projector includes a mirror that scans in two dimensions, at least one of which is sinusoidal. A digital phase lock loop locks to the sinusoidal movement of the mirror. A free-running pixel clock is provided. An interpolation component interpolates pixel intensity data from adjacent pixels based on the position of the mirror when a pixel clock arrives.
摘要翻译：扫描投影仪包括以二维扫描的反射镜，其中至少一个是正弦曲线。数字锁相环锁定到镜子的正弦运动。提供了一个自由运行的像素时钟。当像素时钟到达时，插值分量基于反射镜的位置从相邻像素内插像素强度数据。

8. 发明申请

US20110081945A1 High Efficiency Laser Drive Apparatus 审中-公开
标题翻译：高效率激光驱动装置
公开(公告)号：US20110081945A1
公开(公告)日：2011-04-07
申请号：US12574307
申请日：2009-10-06
申请人： Bruce C. Rothaar , Mark Champion
发明人： Bruce C. Rothaar , Mark Champion
IPC分类号： H04M1/00 , H02J3/00 , H02J1/00 , H01S3/00
CPC分类号： H02J1/10 , H01S5/0428 , H01S5/4087 , H02J2001/008 , H04N9/3129 , H04N9/3173 , Y10T307/696
摘要： A laser drive apparatus includes a plurality of transistors coupled to different power supply voltages. A control circuit selects one of the plurality of transistors to drive a light source. The control circuit also determines a pulse width to drive the selected transistor. A calibration feedback circuit may be used to calibrate power supplies that provide the different power supply voltages. A dither circuit may be used to reduce the number of bits received by the control circuit.
摘要翻译：激光驱动装置包括耦合到不同电源电压的多个晶体管。控制电路选择多个晶体管中的一个来驱动光源。控制电路还确定驱动所选晶体管的脉冲宽度。校准反馈电路可用于校准提供不同电源电压的电源。抖动电路可以用于减少由控制电路接收的位数。

9. 发明授权

US4433348A Apparatus and method for requiring proper synchronization of a digital data flow 失效
标题翻译：要求数字数据流的正确同步的装置和方法
公开(公告)号：US4433348A
公开(公告)日：1984-02-21
申请号：US299829
申请日：1981-09-08
申请人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
发明人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
IPC分类号： G11B20/18 , G11B27/30 , G11B5/09
CPC分类号： G11B27/3027 , G11B20/1803
摘要： The synchronization circuitry can be described as operating in essentially four states and is particularly useful at startup, to locate synchronization codes and spacing there between in the data flows. In operation, the synchronization circuitry looks in a data flow at startup for any sync code and, when such sync code is found, counts ahead to where the next sync code should be. If a proper sync code is found, again the circuitry counts ahead to where the next sync code should be, continuing looking at points along the data flow until a certain number (n) of properly located sync codes are discovered whereat synchronization is declared and normal playback is ordered. However, if sync codes are not located where they should be in the data flow, then such failures are subtracted from success until either (n) successes are found or a total of successes less failures reaches zero whereat the circuitry returns to the first state of looking for any sync code.
摘要翻译：同步电路可以被描述为在基本上四个状态下操作，并且在启动时特别有用，以便在数据流中定位同步码和间隔。在操作中，同步电路在启动时查看任何同步码的数据流，并且当找到这样的同步码时，提前计数下一个同步码应该在何处。如果找到适当的同步代码，则再次将电路提前到下一个同步代码应该在哪里，继续查看沿着数据流的点，直到发现正确定位的同步码的数量（n），同时声明正常播放已订购。然而，如果同步码不在数据流中，那么从成功中减去这样的故障，直到找到成功（n）成功，否则总共成功的故障数达到零，电路返回到第一个状态寻找任何同步代码。

10. 发明授权

US08605764B1 Laser diode junction temperature compensation 有权
标题翻译：激光二极管结温补偿
公开(公告)号：US08605764B1
公开(公告)日：2013-12-10
申请号：US13544556
申请日：2012-07-09
申请人： Bruce C. Rothaar , Dale Eugene Zimmerman , Joel Sandgathe
发明人： Bruce C. Rothaar , Dale Eugene Zimmerman , Joel Sandgathe
IPC分类号： H01S3/00
CPC分类号： G03B21/2033 , G02B26/10 , G02B27/01 , G03B21/2053 , H01S5/0014 , H01S5/0021 , H01S5/0427 , H01S5/0617 , H01S5/06213 , H01S5/06804 , H01S5/06812 , H01S5/4093 , H04N9/3129 , H04N9/3194
摘要： A projection apparatus includes at least one laser diode and a laser diode junction temperature estimator to estimate the junction temperature of the at least one laser diode. Laser diode current drive values are modified in response to the estimated laser junction temperature. The modification of laser diode current drive values may occur as frequently as once per pixel.
摘要翻译：投影装置包括至少一个激光二极管和激光二极管结温度估计器，以估计至少一个激光二极管的结温。激光二极管电流驱动值根据估计的激光器结温度进行修改。激光二极管电流驱动值的修改可能像每个像素一样频繁出现。

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