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1.发明授权Method and apparatus for controlling laser power using a test light emission pattern having a multipulse light emission interval 有权使用具有多脉冲发光间隔的测试发光图案来控制激光功率的方法和装置公开(公告)号：US07310293B2
公开(公告)日：2007-12-18
申请号：US10815782
申请日：2004-04-02
IPC分类号： G11B7/125
CPC分类号： G11B7/1267 , G11B7/0062
摘要： Method for controlling a laser power used in recording on an optical disk includes: causing the laser to emit a test light emission pattern including a multipulse light emission interval and an at-bottom value continuous light emission interval; receiving the test light emission pattern of the laser to convert the pattern to an electric signal and to thereby obtain a light detection signal; calculating a detection value of a multipulse average value from the average value of the light detection signal, and calculating a bottom detection value from the light detection signal to obtain a light emission power characteristic of the laser on a supplied current based on the detection value of the multipulse average value and the bottom detection value; and controlling the current supplied to the laser based on the light emission power characteristic on the current supplied to the laser.
摘要翻译： 用于控制在光盘上记录的激光功率的方法包括：使激光器发射包括多脉冲发光间隔和底部值连续发光间隔的测试发光图案; 接收激光的测试发光图案以将图案转换成电信号，从而获得光检测信号; 根据光检测信号的平均值计算多脉冲平均值的检测值，根据光检测信号计算底部检测值，根据供给电流的检测值，求出激光的发光功率特性 多脉冲平均值和底部检测值; 以及基于提供给激光器的电流的发光功率特性来控制提供给激光器的电流。
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公开(公告)号：US20050254403A1
公开(公告)日：2005-11-17
申请号：US10524896
申请日：2003-10-06
CPC分类号： G11B7/126
摘要： In an optical disc drive, a laser light source emits a laser beam having an intensity changeable with the amount of drive current supplied. A first photodetector receives the laser beam reflected from an optical disc, thereby generating a readout signal. A second photodetector receives the laser beam, generates an electric signal representing the power of the laser beam received, and outputs the electric signal as a light quantity detection signal. A feedback control loop compares the level of the light quantity detection signal with a predetermined target value and regulates the drive current such that the level of the light quantity detection signal approaches the target value. In reading data from the optical disc, the target value is changed so as to compensate for a variation of the sensitivity of the second photodetector, thereby controlling the power of the laser beam emitted from the laser light source.
摘要翻译： 在光盘驱动器中，激光光源发射具有随供给的驱动电流量而变化的强度的激光束。 第一光电检测器接收从光盘反射的激光束，从而产生读出信号。 第二光电检测器接收激光束，产生表示所接收的激光束的功率的电信号，并将该电信号作为光量检测信号输出。 反馈控制环路将光量检测信号的电平与预定目标值进行比较，并且调节驱动电流，使得光量检测信号的电平接近目标值。 在从光盘读取数据时，改变目标值以补偿第二光电检测器的灵敏度的变化，从而控制从激光光源发射的激光束的功率。
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3.发明授权Laser control unit, laser control circuit, and laser-power adjustment method 失效激光控制单元，激光控制电路和激光功率调节方法公开(公告)号：US07366080B2
公开(公告)日：2008-04-29
申请号：US10986959
申请日：2004-11-15
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , G11B7/1267 , H01S5/042
摘要： A laser control unit, a laser control circuit and a laser-power adjustment method are provided which are capable of controlling laser power precisely, even if an error is produced in the duty of an optical pulse. A light-receiving element 101 converts the optical pulse into an electric signal and outputs a photo-detection signal; an LPF 114 calculates the average value of the optical pulse, based on the photo-detection signal; a DSP 124 calculates a light-emission power value, based on the average value of the optical pulse and the duty of the optical pulse, and calculates the difference between the light-emission power value and a target power value; an EP-ROM 160 stores a correction value for correcting a calculation which is executed by the DSP 124; the DSP 124 corrects the calculation, based on the correction value, and controls an electric-current value which is supplied to a semiconductor laser 150, based on the calculation result which is obtained from the correction; and a laser drive circuit 40 drives the semiconductor laser 150, based on the electric-current value.
摘要翻译： 提供激光控制单元，激光控制电路和激光功率调节方法，即使在光脉冲的占空比中产生误差，也能够精确地控制激光功率。 光接收元件101将光脉冲转换为电信号并输出光检测信号; LPF114基于光检测信号计算光脉冲的平均值; DSP 124基于光脉冲的平均值和光脉冲的占空比来计算发光功率值，并计算发光功率值和目标功率值之间的差; EP-ROM 160存储用于校正由DSP 124执行的计算的校正值; DSP 124基于校正值来校正计算，并且基于从校正获得的计算结果来控制提供给半导体激光器150的电流值; 并且激光驱动电路40基于电流值驱动半导体激光器150。
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公开(公告)号：US07177253B2
公开(公告)日：2007-02-13
申请号：US10524896
申请日：2003-10-06
IPC分类号： G11B7/00
CPC分类号： G11B7/126
摘要： In an optical disc drive, a laser light source emits a laser beam having an intensity changeable with the amount of drive current supplied. A first photodetector receives the laser beam reflected from an optical disc, thereby generating a readout signal. A second photodetector receives the laser beam, generates an electric signal representing the power of the laser beam received, and outputs the electric signal as a light quantity detection signal. A feedback control loop compares the level of the light quantity detection signal with a predetermined target value and regulates the drive current such that the level of the light quantity detection signal approaches the target value. In reading data from the optical disc, the target value is changed so as to compensate for a variation of the sensitivity of the second photodetector, thereby controlling the power of the laser beam emitted from the laser light source.
摘要翻译： 在光盘驱动器中，激光光源发射具有随供给的驱动电流量而变化的强度的激光束。 第一光电检测器接收从光盘反射的激光束，从而产生读出信号。 第二光电检测器接收激光束，产生表示所接收的激光束的功率的电信号，并将该电信号作为光量检测信号输出。 反馈控制环路将光量检测信号的电平与预定目标值进行比较，并且调节驱动电流，使得光量检测信号的电平接近目标值。 在从光盘读取数据时，改变目标值以补偿第二光电检测器的灵敏度的变化，从而控制从激光光源发射的激光束的功率。
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5.发明申请Laser control unit, laser control circuit, and laser-power adjustment method 失效激光控制单元，激光控制电路和激光功率调节方法公开(公告)号：US20050105569A1
公开(公告)日：2005-05-19
申请号：US10986959
申请日：2004-11-15
CPC分类号： G11B7/126 , G11B7/1267 , H01S5/042
摘要： A laser control unit, a laser control circuit and a laser-power adjustment method are provided which are capable of controlling laser power precisely, even if an error is produced in the duty of an optical pulse. A light-receiving element 101 converts the optical pulse into an electric signal and outputs a photo-detection signal; an LPF 114 calculates the average value of the optical pulse, based on the photo-detection signal; a DSP 124 calculates a light-emission power value, based on the average value of the optical pulse and the duty of the optical pulse, and calculates the difference between the light-emission power value and a target power value; an EP-ROM 160 stores a correction value for correcting a calculation which is executed by the DSP 124; the DSP 124 corrects the calculation, based on the correction value, and controls an electric-current value which is supplied to a semiconductor laser 150, based on the calculation result which is obtained from the correction; and a laser drive circuit 40 drives the semiconductor laser 150, based on the electric-current value.
摘要翻译： 提供激光控制单元，激光控制电路和激光功率调节方法，即使在光脉冲的占空比中产生误差，也能够精确地控制激光功率。 光接收元件101将光脉冲转换为电信号并输出光检测信号; LPF114基于光检测信号计算光脉冲的平均值; DSP 124基于光脉冲的平均值和光脉冲的占空比来计算发光功率值，并计算发光功率值和目标功率值之间的差; EP-ROM 160存储用于校正由DSP 124执行的计算的校正值; DSP 124基于校正值来校正计算，并且基于从校正获得的计算结果来控制提供给半导体激光器150的电流值; 并且激光驱动电路40基于电流值驱动半导体激光器150。
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公开(公告)号：US20060018236A1
公开(公告)日：2006-01-26
申请号：US11188059
申请日：2005-07-22
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/1263 , G11B7/127 , G11B20/10 , G11B2007/0013
摘要： When a light-receiving element receives a first laser beam, an output power detection unit detects a differential quantum efficiency value of the first laser beam. A control unit judges whether or not an intensity filter and a filter driving unit are operated in accordance with a control signal output from the control unit by using the differential quantum efficiency value from the output power detection unit.
摘要翻译： 当光接收元件接收到第一激光束时，输出功率检测单元检测第一激光束的差分量子效率值。 控制单元通过使用来自输出功率检测单元的差分量子效率值来判断强度滤波器和滤波器驱动单元是否根据从控制单元输出的控制信号来操作。
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7.发明申请Laser Driving Device, Optical Head Incorporating Laser Driving Device, and Optical Disk Apparatus 审中-公开激光驱动装置，结合激光驱动装置的光头和光盘装置公开(公告)号：US20090040904A1
公开(公告)日：2009-02-12
申请号：US10595693
申请日：2004-11-15
申请人： Toshio Matsumoto , Hisashi Senga
发明人： Toshio Matsumoto , Hisashi Senga
IPC分类号： G11B7/135
CPC分类号： G11B7/1263 , H01S5/042 , H01S5/06804 , H01S5/06808 , H01S5/06832
摘要： Provided is a semiconductor laser driving device which enables to reduce unnecessary power consumption.The laser driving device includes: a laser driving section for supplying a driving current for causing a semiconductor laser to emit light; a temperature detecting section for detecting a temperature of the semiconductor laser; and a voltage control section for supplying a source voltage to the laser driving section while changing a voltage value of the source voltage in accordance with the temperature detected by the temperature detecting section. As a result, unnecessary power consumption can be reduced. An appliance having the aforementioned information laser driving device will make energy savings possible, and further make it possible to suppress temperature increases of the appliance.
摘要翻译： 提供了能够减少不必要的功耗的半导体激光驱动装置。 激光驱动装置包括：激光驱动部，用于提供用于使半导体激光发光的驱动电流; 用于检测半导体激光器的温度的温度检测部分; 以及电压控制部分，用于根据由温度检测部分检测到的温度改变源极电压的电压值，向激光驱动部分提供源极电压。 结果，可以减少不必要的功率消耗。 具有上述信息激光驱动装置的器具能够实现节能，并且还可以抑制器具的温度升高。
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8.发明授权Optical recording/reproducing apparatus with transmission amount variation unit 有权具有传输量变化单元的光记录/再现装置公开(公告)号：US07492693B2
公开(公告)日：2009-02-17
申请号：US11188059
申请日：2005-07-22
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/1263 , G11B7/127 , G11B20/10 , G11B2007/0013
摘要： When a light-receiving element receives a first laser beam, an output power detection unit detects a differential quantum efficiency value of the first laser beam. A control unit judges whether or not an intensity filter and a filter driving unit are operated in accordance with a control signal output from the control unit by using the differential quantum efficiency value from the output power detection unit.
摘要翻译： 当光接收元件接收到第一激光束时，输出功率检测单元检测第一激光束的差分量子效率值。 控制单元通过使用来自输出功率检测单元的差分量子效率值来判断强度滤波器和滤波器驱动单元是否根据从控制单元输出的控制信号来操作。
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公开(公告)号：US09901456B2
公开(公告)日：2018-02-27
申请号：US13884439
申请日：2011-11-09
申请人： Toshio Matsumoto , Yuzo Daigo , Shinichi Ohmori , Komei Kato
发明人： Toshio Matsumoto , Yuzo Daigo , Shinichi Ohmori , Komei Kato
CPC分类号： A61F2/442 , A61F2/4465 , A61F2002/30011 , A61F2002/30013 , A61F2002/30471 , A61F2002/30472 , A61F2002/30492 , A61F2002/30616 , A61F2002/30841 , A61F2002/30892 , A61F2002/30967 , A61F2002/30968 , A61F2002/3097 , A61F2002/30971 , A61F2002/448 , A61F2310/00023 , A61F2310/00431 , A61F2310/00443 , A61F2310/00485 , A61F2310/00491 , A61F2310/00497 , A61F2310/00514 , A61F2310/00532 , A61F2310/00544 , A61F2310/00562 , A61F2310/00976
摘要： A vertebral body spacer of the present invention is used by being inserted between a vertebral body and a vertebral body (intervertebral space). The vertebral body spacer has a block body constituted of titanium or a titanium alloy as a main component thereof, and provided with a pair of contact surfaces to be made contact with the vertebral body and the vertebral body. The block body includes dense sheets having a dense part on at least a surface thereof and porous sheets having a porous part on at least a surface thereof. The porous part has a larger porosity than a porosity of the dense part. Each of the porous sheets is sandwiched between the pair of dense sheets. According to the present invention, it is possible to maintain an appropriate size between the vertebral bodies (intervertebral space).
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10.发明授权Organic electroluminescent device having an electrically insulating charge generation layer 有权具有电绝缘电荷产生层的有机电致发光器件公开(公告)号：US08080934B2
公开(公告)日：2011-12-20
申请号：US11732348
申请日：2007-04-03
申请人： Junji Kido , Toshio Matsumoto
发明人： Junji Kido , Toshio Matsumoto
IPC分类号： H01L51/50
CPC分类号： H01L51/5278 , C07C211/58 , C07C211/61 , C07C2603/18 , C09K11/06 , C09K2211/1003 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , H01L51/005 , H01L51/0056 , H01L51/0058 , H01L51/006 , H01L51/5036 , H01L51/5044 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092 , H01L51/5206 , H01L51/5221 , H01L51/5262 , H01L51/5284 , H01L51/56 , Y10T428/24942
摘要： An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0×102 Ωcm.
摘要翻译： 有机电致发光器件包括设置在与阴极电极相对的阴极电极和阳极电极之间的至少两个发光单元，每个发光单元包括至少一个发光层。 光发射单元通过至少一个电荷产生层彼此分开，电荷产生层是具有不小于1.0×102Ω·cm·cm的电阻率的电绝缘层。
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