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
    • 3. 发明授权
    • Projection synchronization system
    • 投影同步系统
    • US5002387A
    • 1991-03-26
    • US498158
    • 1990-03-23
    • Anton L. BaljetGerard C. CarterGordon W. Harris
    • Anton L. BaljetGerard C. CarterGordon W. Harris
    • G03B35/16H04N13/00
    • H04N13/0438G03B35/16H04N13/0003H04N13/0048H04N13/0459H04N13/0497
    • An alternate eye 3-d projection system has a projector projecting alternate eye left and right images, has alternating eye 3-d glasses alternating between left and right lens transmissiveness, and has a phase delay unit synchronizing the left lens transmissiveness to left images and right lens transmissiveness to right images. A timing shutter is driven through a mechanical link to the projector primary mechanism at a frequency proportional to the frequency of the transition between images. A sensor outputs pulses according to the rotationally frequency of the timing shutter. The phase delay unit receives the pulses, a multiplier multiplies the frequency of the pulses, a phase lock loop locks on to the frequency and a counter counts the pulses. After a preset delay the counter outputs a pulse. The delay is adjustable. The counter pulse enables a 60 KHz oscillator. The oscillations are counted by another counter and passed to a transmitter. The 60 KHz oscillations are disabled when the other counter reaches a preset amount. The other counter sets the duty cycle of the transmitter. Each of the components in the unit is duplicated in a back-up section. The back-up section is enabled when the primary phase lock loop is not locked on and the back-up phase locked loop is locked on.
    • 另一只眼睛3-D投影系统具有投影仪投射左眼和右眼的交替眼睛,具有交替的眼睛3D眼镜在左右透镜透视之间交替,并具有相位延迟单元,以将左透镜透视与左图像同步,右 透镜对右图像的透明度。 定时快门通过与投影机主机构的机械连接以与图像之间的转换频率成比例的频率被驱动。 传感器根据定时快门的旋转频率输出脉冲。 相位延迟单元接收脉冲,乘法器乘以脉冲的频率,锁相环锁定到频率上,计数器对脉冲进行计数。 预设延时后,计数器输出一个脉冲。 延时可调。 计数脉冲启用60 KHz振荡器。 振荡由另一个计数器计数并传递给发射机。 当另一个计数器达到预设值时,60 KHz振荡被禁止。 其他计数器设置变送器的占空比。 单元中的每个组件都在备份部分中重复。 当主锁相环未锁定并且备用锁相环被锁定时,备用部分被使能。