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
    • 4. 发明授权
    • Reading system for a control track of an optical disk
    • 用于光盘控制轨迹的读取系统
    • US5124962A
    • 1992-06-23
    • US442716
    • 1989-11-29
    • Yasuo Haneji
    • Yasuo Haneji
    • G11B7/09G11B27/30
    • G11B7/0948G11B27/30
    • The control track of the optical disk is scanned by an optical pick-up. Data and clock are detected from the signal obtained by above scanning, and the missing state of the clock is further detected. In addition, the shifting direction relative to the control track of the optical pick-up is detected. When data indicates an error and the clock includes a large missing portion, the optical pick-up is shifted in a direction opposite to the shifting direction thereof. In the case where there is no shifting direction signal, the optical pick-up is shifted in a fixed direction. Such an operation is repeated until no shift is detected. In an alternative implementation, the control track of the optical disk is scanned by the optical pick-up. Data and clock are detected from the signal obtained by above scanning, and the missing state of the clock is further detected. When data indicates an error and the clock includes a large missing portion, the optical pick-up is shifted in a fixed direction. Thereafter, the width of the missing portion of the clock is detected. The optical pick-up is shifted in a direction opposite to the above when the missing width is widened and in the same direction as the above when the missing width is narrowed. Such an operation is repeated until no shift is detected.
    • 5. 发明授权
    • Rotary recording medium which is playable in still picture, slow-motion
and normal reproduction modes
    • 旋转记录介质,可以静止图像,慢动作和正常再现模式播放
    • US4638376A
    • 1987-01-20
    • US818057
    • 1986-01-10
    • Hiroyuki SugiyamaMasaki SakuraiRyozo AbeKenji YoshiharaYasuo Haneji
    • Hiroyuki SugiyamaMasaki SakuraiRyozo AbeKenji YoshiharaYasuo Haneji
    • G11B11/05G11B21/08G11B27/30H04N5/76
    • G11B21/085G11B11/05G11B27/3054H04N5/903
    • A rotary recording medium comprises a video signal of the same unit repeatedly recorded for N-field period (N is a natural number greater than or equal to 2) for each track turn, a track shift address signal for instructing the existence of forced track shift of a pickup reproducing element, the shifting direction, and the shifting position, recorded on at least one position for one revolution of the rotary recording medium with a constant period regardless of the kind of video signal source of the video signal, where the track shift address signal comprising at least a synchronizing code, rotary recording medium type discriminating code, a kick existence instructing code, and a kick direction instructing code, and divided audio signal parts obtained by dividing an audio signal for every field period of the video signal which is reproduced, successively arranged and recorded according to a scanning locus of the pickup reproducing element upon normal reproduction. The rotary recording medium has track parts recorded with the divided audio signal parts on at least one part of a recording surface thereof. The reproducing apparatus comprises an address signal reproducing circuit for reproducing the track shift address signal from within a signal reproduced by a reproducing circuit, and a kick pulse generator responsive to an output signal of the address signal reproducing circuit, for generating a pulse for forcibly shifting the scanning track of the pickup reproducing element.
    • 旋转记录介质包括针对每个轨道转弯重复记录的N场周期(N为大于或等于2的自然数)的相同单元的视频信号,用于指示强制轨道移位存在的轨道移位地址信号 拾音器再现元件,移动方向和移动位置,记录在具有恒定周期的旋转记录介质的一圈的至少一个位置,而不管视频信号的视频信号源的种类,其中轨道移位 地址信号包括至少一个同步码,旋转记录介质类型识别码,脚踢存在指示码和脚蹬指示码,以及通过对视频信号的每个场周期的音频信号进行划分而得到的分频音频信号, 在正常再现时根据拾取再现元件的扫描轨迹依次布置和记录。 旋转记录介质在其记录表面的至少一部分上具有记录有分割音频信号部分的轨道部分。 再现装置包括一个地址信号再现电路,用于从由再现电路再现的信号内再现轨道移位地址信号,以及响应于地址信号再现电路的输出信号的反转脉冲发生器,用于产生用于强制移位的脉冲 拾音器重放元件的扫描轨迹。