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
    • 7. 发明授权
    • 주파수 변조신호 수신방법 및 장치
    • 주파수변조신호수신방법및장치
    • KR100402089B1
    • 2003-10-17
    • KR1020017002724
    • 1999-09-02
    • 가부시키가이샤 히타치세이사쿠쇼
    • 오구마켄지카와바타아쓰시와타나베다이사토히로시타시로코레후미
    • B61L1/00
    • B61L1/188
    • The object of the present invention is to provide a train detection system which is highly resistant to noise. In a method for using a frequency modulated signal as a train detection signal and judging train decision by existence of demodulation due to a reduction in the received signal level caused by a short-circuit of the axle, as a method for optionally setting a threshold value of train decision, when applying the amplitude-dependent demodulation process, by combining the gain process of amplifying the amplitude of a signal, the limiter process of limiting the amplitude of the output signal of the gain process to a fixed value, and the filter process of removing harmonics generated by the limiter process at the previous stage of the demodulation process and by optionally setting the lower limit value of the demodulatable signal level by the gain, a process of optionally setting a threshold value of train decision is realized.
    • 本发明的目的是提供一种高度抵抗噪声的列车检测系统。 作为将频率调制信号作为列车检测信号使用,根据由车轴短路引起的接收信号电平的降低引起的解调的有无来判断列车决定的方法,作为选择性地设定阈值 当应用幅度相关解调处理时,通过组合放大信号的幅度的增益处理,将增益处理的输出信号的幅度限制为固定值的限幅器处理,以及滤波处理 在解调处理的前一阶段去除由限幅器处理产生的谐波,并且通过可选地设置可解调信号电平的下限值,实现可选地设定列车判决的阈值的处理。 <图像>
    • 9. 发明公开
    • 반도체 기억장치
    • 半导体存储设备
    • KR1020020006428A
    • 2002-01-19
    • KR1020010039211
    • 2001-07-02
    • 가부시키가이샤 히타치세이사쿠쇼가부시키가이샤 히타치초에루.에스.아이.시스테무즈
    • 사토히로시노다사토시마니타키이치쿠보노쇼우지시게마츠코우지
    • G11C16/12
    • G11C5/145G11C16/12G11C16/30
    • PURPOSE: To prevent the situation in which write-in operation cannot be finished and to finish write-in operation quickly in accordance with a level of external power source voltage, in a semiconductor storage device having an internal boosting circuit such as a flash memory. CONSTITUTION: In the semiconductor storage device provided with an internal boosting circuit, the device is provided with a voltage detecting circuit (limiter circuit LM) detecting whether boosting voltage reaches the prescribed potential or not, and a timer which can count the prescribed time, when the voltage detecting circuit detects that boosting voltage reaches the prescribed potential, a control circuit applies the boosting voltage to a selection memory cell, and when the control circuit detects that the prescribed time elapses after the boosting circuit starts boosting operation based on count information of the timer, even if boosting voltage generated by the boosting circuit does not reach the prescribed potential, boosted voltage is applied to a selected memory cell.
    • 目的:为了防止在具有诸如闪存等内部升压电路的半导体存储装置中,根据外部电源电压的水平,不能完成写入操作的情况并快速完成写入操作。 构成:在具有内部升压电路的半导体存储装置中,该装置设置有检测升压电压是否达到规定电位的电压检测电路(限制电路LM),以及能够对规定时间进行计数的定时器, 电压检测电路检测到升压电压达到规定电位,控制电路将升压电压施加到选择存储单元,并且当控制电路检测到在升压电路开始升压操作之后经过规定时间时,基于 定时器,即使升压电路产生的升压电压未达到规定电位,升压电压也被施加到所选存储单元。