会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明公开
    • 레이저 구동신호를 발생하는 장치/방법
    • 用于产生激光驱动信号的手段/方法
    • KR1020060023560A
    • 2006-03-14
    • KR1020057024073
    • 2004-06-16
    • 코닌클리케 필립스 엔.브이.
    • 드보에르바트엠.반덴홈베르그요하네스에이.티.엠.임민크알베르트에이치.제이.
    • G11B7/126
    • G11B7/126G11B7/00456G11B7/0062H01S5/0427
    • A driver for driving a light generator for generating light, comprising a digital-to-analog converter (DAC) having a data input, a data output for generating an analog signal, a first multiplexer (MUX1) for cyclic selection of a number of data levels corresponding to desired intensity levels of the light and for coupling the data levels to the data input; a de-multiplexer (DE-MUX) synchronized with the first multiplexer (MUX1) for de-multiplexing the analog signal into a set of analog signals; memory means for temporarily storing the set of analog signals; and a second multiplexer (MUX2) for selection of the stored set of analog signals and for generating a drive signal (IL) for the light generator. The memory means is preferably implemented by a set of capacitors (C 1 - C8). Usually, for instance in an optical disc drive, the light generator is implemented by a laser (Ls). In this situation the data input of the digital-to-analog converter comprises a threshold data input part; a delta data input part; a threshold gain reference input associated with the threshold data input part; and a delta gain reference input associated with the delta data input part. So in fact the DAC is split into two parts (DAC 1 and DAC2) for separate threshold power and delta power control of the laser (LS).
    • 一种用于驱动光发生器以产生光的驱动器,包括具有数据输入的数模转换器(DAC),用于产生模拟信号的数据输出端,用于循环选择多个数据的第一多路复用器(MUX1) 水平对应于光的期望强度水平并且用于将数据电平耦合到数据输入; 与第一多路复用器(MUX1)同步的解复用器(DE-MUX),用于将模拟信号解复用为一组模拟信号; 用于临时存储该组模拟信号的存储装置; 以及第二多路复用器(MUX2),用于选择所存储的一组模拟信号并产生用于光发生器的驱动信号(IL)。 存储装置优选地由一组电容器(C 1 -C 8)实现。 通常,例如在光盘驱动器中,光发生器由激光(Ls)实现。 在这种情况下,数模转换器的数据输入包括阈值数据输入部分; 增量数据输入部分; 与阈值数据输入部分相关联的阈值增益参考输入; 以及与增量数据输入部分相关联的增量增益参考输入。 因此,事实上,DAC分为两部分(DAC 1和DAC2),用于激光器(LS)的单独阈值功率和Δ功率控制。