公开(公告)号：US4317037A

公开(公告)日：1982-02-23

申请号：US047133

申请日：1979-06-11

申请人： Atsushi Suzuki ,  Koichi Urabe ,  Hiromichi Yamada ,  Hideki Kohno

发明人： Atsushi Suzuki ,  Koichi Urabe ,  Hiromichi Yamada ,  Hideki Kohno

IPC分类号： G01T1/20

CPC分类号： G01T1/20

摘要： In radiation detection apparatus apparatus having a plurality of radiation detector each comprising a scintillator which emits light in response to a radiation, and a photodetector which detects an emission intensity of the scintillator; radiation detection apparatus characterized in that the scintillator is made of a layer of phosphor particles, so that the performances of the respective detectors are substantially identical.

摘要翻译： 在具有多个辐射检测器的放射线检测设备装置中，每个辐射检测器包括响应于辐射而发光的闪烁体，以及检测闪烁体发射强度的光电检测器; 其特征在于，闪烁体由荧光体粒子层构成，各检测器的性能基本相同。

公开(公告)号：US20060198262A1

公开(公告)日：2006-09-07

申请号：US11345171

申请日：2006-02-01

申请人： Koichi Urabe

发明人： Koichi Urabe

IPC分类号： G11B7/12

CPC分类号： G11B7/1267 ,  G11B7/006

摘要： An optical recording apparatus performs an OPC operation with a designated target modulation. A reproduction signal detecting circuit measures, in response to the OPC operation, jitter, amplitude of the reproduction signal and the like. An asymmetry detecting circuit calculates an asymmetry value of the optical disc from the measurements. An RAM temporarily stores the measured reproduction information. A laser power correcting circuit evaluates the calculated asymmetry value, and increases/decreases setting of the target modulation, through a laser power setting circuit. When the asymmetry value comes close to 0, a laser driving circuit performs an overwriting operation (DOW: Direct Over Write) with the current asymmetry value.

摘要翻译： 光学记录装置用指定的目标调制执行OPC操作。 再现信号检测电路响应于OPC操作来测量抖动，再现信号的振幅等。 不对称检测电路根据测量值计算光盘的不对称值。 RAM临时存储测量的再现信息。 激光功率校正电路通过激光功率设定电路来计算计算出的不对称值，并且增加/减少目标调制的设定。 当不对称值接近0时，激光驱动电路用当前不对称值执行重写操作（DOW：直接写入）。