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
    • 1. 发明授权
    • Raster scan frame digitizer method and apparatus
    • 栅格扫描帧数字化仪的方法和装置
    • US4528591A
    • 1985-07-09
    • US408349
    • 1982-08-16
    • Steven F. LiepePierre RadochonskiGlenn R. Johnson
    • Steven F. LiepePierre RadochonskiGlenn R. Johnson
    • H04N5/14
    • H04N5/14
    • A scheme for digitizing a stationary video image is disclosed. The amplitude of a video signal, representing said video image, is sampled at a plurality of points along the time axis and is compared with the count in a counter. If the amplitude equals the count at a particular point on the time axis, the count is stored in a memory in a location corresponding to said particular point. The process is repeated until a count in the counter is stored in said memory in locations corresponding to all of said plurality of points along the time axis of said video signal. If two or more counters are used, each counting from a different initial value, and if two or more corresponding comparators are used to make the above comparison, the time required to digitize said stationary video image may be reduced. Consequently, the time required for the video image to remain stationary is reduced.
    • 公开了一种用于数字化静止视频图像的方案。 表示所述视频图像的视频信号的幅度在沿着时间轴的多个点进行采样,并与计数器中的计数进行比较。 如果振幅等于时间轴上特定点处的计数,则计数被存储在对应于所述特定点的位置的存储器中。 重复该过程,直到计数器中的计数器在沿着所述视频信号的时间轴对应于所有多个点的位置存储在所述存储器中。 如果使用两个以上的计数器,则从不同的初始值进行计数,并且如果使用两个或更多个对应的比较器进行上述比较,则可以减少数字化所述静止视频图像所需的时间。 因此,视频图像保持静止所需的时间减少。
    • 2. 发明授权
    • System and method to reduce jitter
    • 减少抖动的系统和方法
    • US07599458B2
    • 2009-10-06
    • US10968735
    • 2004-10-19
    • Samuel D. NaffzigerSteven F. Liepe
    • Samuel D. NaffzigerSteven F. Liepe
    • H04L7/00
    • H03K5/15046
    • One disclosed embodiment may comprise an interpolation system that includes an interpolator that interpolates between a selected phase from a preceding cycle and a selected phase from a current cycle to provide an interpolated phase for the current cycle. An edge of the interpolated phase for the current cycle has reduced jitter relative to an edge of a corresponding phase of the current cycle. A delay system delays a plurality of other phases of the current cycle to provide delayed other phases, the delayed other phases and the interpolated phase for the current cycle collectively defining a set of adjusted phases for the current cycle.
    • 一个所公开的实施例可以包括插值系统,其包括内插器,其在来自前一周期的选定相位和来自当前周期的选定相位之间进行插值,以为当前周期提供内插相位。 用于当前周期的内插相位的边缘相对于当前周期的相应相位的边缘减小了抖动。 延迟系统延迟当前周期的多个其他相位以提供延迟的其他相位,延迟的其他相位和当前周期的内插相位共同定义当前周期的一组经调整的相位。
    • 6. 发明授权
    • Automatic high-speed color CRT degaussing system
    • 自动高速彩色CRT消磁系统
    • US4783715A
    • 1988-11-08
    • US182651
    • 1988-04-18
    • Steven F. Liepe
    • Steven F. Liepe
    • H01F13/00H04N9/29H01J29/06
    • H04N9/29
    • A degaussing system for a CRT includes a voltage source, which is enabled by power-up of the CRT, coupled to a tank circuit including a degaussing coil and a capacitor. A voltage sensing network connected in parallel with the tank circuit senses the voltage across the capacitor and when that voltage rises to a predetermined threshold, and actuating signal is provided which turns on a latching switch circuit which enables a switch connecting the tank circuit to ground. This allows it to oscillate, taking the metal components of the CRT through a decreasing series of hysteresis loops as the oscillation decays. The latching switch circuit maintains the switch in an on position until power-down of the CRT, thus maintaining all except R1 which aids grid regulation of the components of the degaussing system, in a low voltage state until degaussing becomes necessary once again.
    • 用于CRT的消磁系统包括电压源,其通过连接到包括消磁线圈和电容器的振荡电路的CRT的上电而实现。 与电容器电路并联连接的电压感测网络感测电容器两端的电压,并且当该电压上升到预定的阈值时,提供启动信号,该启动信号接通一个闭锁开关电路,该开关电路使得将电路连接到地的开关。 这允许它振荡,随着振荡衰减,使CRT的金属部件通过减少的一系列磁滞回线。 闭锁开关电路将开关保持在接通位置,直到CRT断电,因此除了有助于消磁系统的部件的电网调节的R1之外,保持所有这些都处于低电压状态,直到再次需要消磁。
    • 10. 发明授权
    • Hysteresis removal for positioning systems with variable backlash and
stiction
    • 具有可变间隙和静摩擦的定位系统的滞后消除
    • US5764018A
    • 1998-06-09
    • US536295
    • 1995-09-29
    • Steven F. LiepeKenneth G. Richardson
    • Steven F. LiepeKenneth G. Richardson
    • G05D3/00G05B19/40
    • G05B19/40
    • A system and method for reducing non-repeatable positioning errors. Non-repeatable positioning errors caused by the effects stiction and backlash in the mechanical system are reduced by "shaking" or vibrating the positioning system in a controlled manner. After the system input is set to the desired value, the positioning system is "shaken" by inputting a series of offsets that oscillate around the desired location and gradually decrease in amplitude, eventually reaching zero. In a specific embodiment, a lead screw is threaded through a follower nut which is connected to a magnetic tape read/write head. The lead screw is rotated by a mechanical transmission which provides gear reduction from a computer controlled stepper motor. The tape head's non-repeatable positioning error is reduced by alternately stepping the stepper motor in opposite directions a specified number of steps and periodically reducing the specified number of steps until zero is eventually reached.
    • 一种用于减少不可重复定位误差的系统和方法。 通过以受控的方式“摆动”或振动定位系统来减少机械系统中的影响固定和反冲引起的不可重复的定位误差。 在将系统输入设置为所需值之后,通过输入一系列在期望位置周围振荡的偏移并逐渐减小振幅,最终达到零,使定位系统“摇动”。 在具体实施例中,导螺杆穿过连接到磁带读/写头的从动螺母。 导螺杆通过机械传动器旋转,该机械传动装置从计算机控制的步进电机提供齿轮减速。 通过将步进电机以相反的方向交替地步进指定数量的步骤,并且周期性地减少指定的步数,直到最终达到零,从而减少了磁带头的不可重复的定位误差。