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    • 1. 发明授权
    • Lens pull-in method for near-field optical accessing system
    • 近场光接入系统的镜头拉入方式
    • US08427914B2
    • 2013-04-23
    • US12985147
    • 2011-01-05
    • Tung-Hsu Hsieh
    • Tung-Hsu Hsieh
    • G11B7/00G11B5/58
    • G11B7/08511G11B7/1387
    • A lens pull-in method is used in a near-field optical accessing system. When a lens is in a far-field range, the lens is driven to approach a surface of an optical disc in an open loop control state. If the lens enters a near-field range, a first GES level is inputted as a set value and the lens is driven in a close loop control state. When the gap error signal decreases to the first GES level, the set value is changed to a second GES level, which is higher than the first GES level. When the gap error signal increases to the first GES level, the set value is changed to a target GES level, so that the gap error signal is maintained at the target gap error signal.
    • 在近场光接入系统中使用镜头拉入方法。 当透镜处于远场范围时,透镜被驱动以在开环控制状态下接近光盘的表面。 如果透镜进入近场范围,则输入第一GES电平作为设定值,并且以闭环控制状态驱动透镜。 当间隙误差信号减小到第一GES电平时,设定值变为高于第一GES电平的第二GES电平。 当间隙误差信号增加到第一GES电平时,将设定值改变为目标GES电平,使得间隙误差信号保持在目标间隙误差信号上。
    • 5. 发明申请
    • SENSING METHOD AND DEVICE UTILIZING ALTERNATING SIGNAL FREQUENCIES
    • 感应方法和利用交替信号频率的装置
    • US20110029280A1
    • 2011-02-03
    • US12847042
    • 2010-07-30
    • Steef van BeckhovenMat TimmermansMichel Klein Swormink
    • Steef van BeckhovenMat TimmermansMichel Klein Swormink
    • G01B17/00
    • G01S7/527G01S15/102
    • An ultrasonic sensing method and an ultrasonic sensing device are provided. The ultrasonic sensing device includes a microprocessor, a signal-driving module and a transducer module. The microprocessor generates a first driving signal with a first frequency to the signal-driving module. The signal-driving module drives the transducer module to emit a first sensing signal to a target object in response to the first driving signal. Then, a first echo signal received by the transducer is transmitted to the microprocessor to calculate a first time of flight. In a similar manner, a second time of flight is obtained based on a second driving signal with a second frequency. The microprocessor determines a final time of flight according to the first time of flight or the second time of flight.
    • 提供超声波感测方法和超声波感测装置。 超声波感测装置包括微处理器,信号驱动模块和换能器模块。 微处理器产生具有第一频率的第一驱动信号给信号驱动模块。 信号驱动模块响应于第一驱动信号驱动换能器模块向目标物体发射第一感测信号。 然后,由换能器接收的第一回波信号被发送到微处理器以计算第一次飞行时间。 以类似的方式,基于具有第二频率的第二驱动信号获得第二次飞行时间。 微处理器根据第一次飞行时间或第二次飞行时间确定最后的飞行时间。
    • 6. 发明授权
    • Drawing control method for producing label pattern
    • 制作标签图案的绘图控制方法
    • US07760220B2
    • 2010-07-20
    • US11461276
    • 2006-07-31
    • Yu-Ming KangChi-Yuan Liu
    • Yu-Ming KangChi-Yuan Liu
    • B41J2/435
    • G11B23/40G11B7/0037
    • A drawing control method is used for producing a label pattern on a label side of an optical disc. The optical disc is first loaded into an optical disc drive with the label side facing to an optical pickup head of the optical disc drive. The optical pickup head is controlled to move along a seeking direction from a first track to a second track in a long seeking operation; and then controlled to move along another seeking direction opposite to the seeking direction from the second track to a preset track range between lower track and an upper track. The optical pickup head then draws a label pattern on the label side of the optical disc in the preset track range.
    • 绘图控制方法用于在光盘的标签侧产生标签图案。 首先将光盘加载到光盘驱动器中,其中标签面朝向光盘驱动器的光学拾取头。 控制光拾取头在长寻找操作中沿着搜索方向从第一轨道移动到第二轨道; 然后被控制成沿着与搜索方向相反的另一搜索方向从第二轨道移动到下轨道和上轨道之间的预设轨道范围。 光拾取头然后在预设轨迹范围内在光盘的标签侧上绘制标签图案。
    • 7. 发明申请
    • USB DEVICE WITH INTERNAL ASSISTING POWER
    • 具有内部辅助功能的USB设备
    • US20100133908A1
    • 2010-06-03
    • US12616461
    • 2009-11-11
    • WEI-KUANG WENG
    • WEI-KUANG WENG
    • H02J7/34H02J1/10
    • G06F1/266Y10T307/505Y10T307/527
    • An universal-serial-bus external device is connected to an universal-serial-bus port of a computer host and the universal-serial-bus port comprises a positive-power end from which a main current is outputted. The external device includes: a load circuit comprising a positive-power end to which a main current is outputted from the positive-power end of the universal-serial-bus port, wherein a load current, for driving the universal-serial-bus external device, is inputted to the positive-power end of the load circuit; and an assisting-power circuit comprising an output end from which an assisting current is outputted to the positive-power end of the load circuit; wherein the load circuit is only provided by the main current if the load current is lower than a first threshold current; and, the load circuit is provided by both the main current and the assisting current if the load current is higher than a second threshold current.
    • 通用串行总线外部设备连接到计算机主机的通用串行总线端口,通用串行总线端口包括从其输出主电流的正功率端。 外部装置包括:负载电路,包括从通用串行总线端口的正电源端输出主电流的正电源端,其中负载电流用于驱动通用串行总线外部 装置被输入到负载电路的正电源端; 以及辅助电源电路,包括输出端,辅助电流从所述输出端输出到所述负载电路的正极端; 其中如果所述负载电流低于第一阈值电流,则所述负载电路仅由所述主电流提供; 并且如果负载电流高于第二阈值电流,则负载电路由主电流和辅助电流两者提供。
    • 9. 发明授权
    • Tracking error control system and method
    • 跟踪误差控制系统和方法
    • US07668050B2
    • 2010-02-23
    • US11023072
    • 2004-12-27
    • Ying-Ta LinRen-Te Lin
    • Ying-Ta LinRen-Te Lin
    • G11B7/00
    • G11B7/094G11B7/0901
    • A tracking error control system includes a tracking error signal generator in communication with an optical pickup head, a DC detector in communication with the tracking error signal generator and a comparator in communication with the DC detector and the tracking error signal generator. The operating optical signals received by the optical pickup head are operated with an offset signal to generate a tracking error signal. A direct current voltage of the tracking error signal is detected and compared with a reference voltage. The offset signal is adjusted according to the comparison result and fed back to the tracking error signal generator to adjust the tracking error signal.
    • 跟踪误差控制系统包括与光学拾取头通信的跟踪误差信号发生器,与跟踪误差信号发生器通信的DC检测器和与DC检测器和跟踪误差信号发生器通信的比较器。 由光学拾取头接收的操作光信号用偏移信号操作以产生跟踪误差信号。 检测跟踪误差信号的直流电压,并将其与参考电压进行比较。 偏移信号根据比较结果进行调整,反馈给跟踪误差信号发生器,调整跟踪误差信号。