Digital video signal reproducing apparatus
    1.
    发明授权
    Digital video signal reproducing apparatus 失效
    数字视频信号再现装置

    公开(公告)号:US4614979A

    公开(公告)日:1986-09-30

    申请号:US530033

    申请日:1983-09-07

    CPC分类号: H04N9/877

    摘要: A digital video signal reproducing apparatus comprises a reproducing circuit for reproducing a digital video signal from a recording medium, which digital video signal is added with at least a write-in specifying code and a read-out specifying code for specifying a memory circuit part to picture element data groups which are obtained by subjecting a video signal to a digital pulse modulation, a detecting circuit for detecting the write-in specifying code and the read-out specifying code within a reproduced digital video signal from the reproducing circuit, a generator for generating various synchronizing signals and reference signals, first and second memory circuit parts each having a memory capacity for storing picture element data corresponding to one picture, a write controller for causing the picture element data to be written into one of the first and second memory circuit parts according to a value of the write-in specifying code, a latch circuit for latching the read-out specifying code by a vertical synchronizing signal generated from the generator, a read controller for causing stored picture element data to be successively read out from one of the first and second memory circuit parts according to a value of the read-out specifying code from the latch circuit, and a circuit for converting the picture element data read out from the first and second memory circuit parts to an analog video signal.

    摘要翻译: 数字视频信号再现装置包括一个再现电路,用于从记录介质再现数字视频信号,该数字视频信号至少添加了一个写入指定码和一个用于指定存储器电路部分的读出指定码 通过对视频信号进行数字脉冲调制而获得的图像元素数据组,用于检测来自再现电路的再现的数字视频信号中的写入指定代码和读出指定代码的检测电路, 产生各种同步信号和参考信号,第一和第二存储器电路部件,每个存储器电路部件具有用于存储与一个图像相对应的图像元素数据的存储容量;写入控制器,用于使图像元素数据被写入第一和第二存储器电路之一 根据写入指定码的值的部分,用于锁存读出的规格的锁存电路 通过由发生器产生的垂直同步信号产生一个代码;一个读取控制器,用于根据来自该锁存器的读出指定代码的值从第一和第二存储器电路部件中的一个连续读出存储的图像元素数据; 电路和用于将从第一和第二存储器电路部分读出的像素数据转换为模拟视频信号的电路。

    Apparatus for playing back video signals recorded on a rotary recording
medium on several quasi-slow motion reproduction modes
    2.
    发明授权
    Apparatus for playing back video signals recorded on a rotary recording medium on several quasi-slow motion reproduction modes 失效
    用于以几种准慢动作再现模式播放记录在旋转记录介质上的视频信号的装置

    公开(公告)号:US4499505A

    公开(公告)日:1985-02-12

    申请号:US307582

    申请日:1981-10-01

    摘要: A rotary recording medium reproducing apparatus for reproducing a rotary recording medium in which a plurality of fields of video signals are recorded for each track turn on a spiral track comprises a reproducing transducer having a reproducing element for scanning over tracks on the rotary recording medium to reproduce recorded signals, and shifting device responsive to a signal applied thereto for shifting the reproducing element towards the outer side or the inner side on the rotary recording medium, and a circuit for producing shifting a signal in order to shift the reproducing element by one track pitch towards the outer side on the rotary recording medium every time the reproducing element reaches one predetermined position on the rotary recording medium, and capable of producing a shifting signal for shifting the reproducing element towards the outer side or the inner side on the rotary recording medium according to the slow-motion ratio and the direction of the slow-motion reproduction when the reproducing element reaches another predetermined position on the rotary recording medium. The shifting signal is supplied to the shifting device. The tracks are reproduced a plurality of times with respect to each track turn, to perform a slow-motion reproduction.

    摘要翻译: 用于再生旋转记录介质的旋转记录介质再现装置,其中记录有用于每个轨道的多个视场信号在螺旋轨迹上的旋转记录介质,其特征在于,具有用于在所述旋转记录介质上的轨道上进行扫描的再现元件的再现元件, 记录信号和移位装置,其响应于施加到其上的信号,用于使再现元件朝向旋转记录介质上的外侧或内侧移动,以及用于产生移位信号的电路,以便将再现元件移位一个磁道间距 每当再现元件到达旋转记录介质上的一个预定位置时,在旋转记录介质上的外侧,并且能够产生用于使再现元件朝向旋转记录介质上的外侧或内侧移动的移位信号, 慢速运动比和慢动作方向 当再现元件到达旋转记录介质上的另一预定位置时的产生。 换档信号被提供给换档装置。 轨道相对于每个轨道转弯多次再现,以执行慢动作再现。

    Periodical signal detection circuit in a reproducing apparatus
    3.
    发明授权
    Periodical signal detection circuit in a reproducing apparatus 失效
    再现装置中的周期性信号检测电路

    公开(公告)号:US4428003A

    公开(公告)日:1984-01-24

    申请号:US300672

    申请日:1981-09-09

    摘要: A periodical signal detection circuit is designed for use in an apparatus which reproduces an information signal and a periodical signal from a recording medium. A separation circuit separates the periodical signal from the reproduced signal. A reference pulse is generated at a repetition frequency which is the same as the frequency of the periodical signal. A first gate circuit responds to the periodical signal obtained from the separation circuit and to the reference pulse signal. A first counter produces an output by counting N of the reference pulses (N is an integer greater than or equal to 2). A second gate circuit passes the signal from the separation circuit according to the output of the first counter. An output circuit detects the signals in responsive to the reference pulse, and the output of either the first or the second gate circuit.

    摘要翻译: 周期信号检测电路被设计用于从记录介质再现信息信号和周期信号的装置中。 分离电路将周期信号与再生信号分离。 以与周期信号的频率相同的重复频率产生参考脉冲。 第一门电路响应于从分离电路和参考脉冲信号获得的周期信号。 第一计数器通过对N个参考脉冲(N是大于或等于2的整数)进行计数来产生输出。 第二门电路根据第一计数器的输出传递来自分离电路的信号。 输出电路响应于参考脉冲和第一或第二门电路的输出来检测信号。

    System for reproducing an address signal from each track turn during a
search mode operation of a reproducing apparatus
    4.
    发明授权
    System for reproducing an address signal from each track turn during a search mode operation of a reproducing apparatus 失效
    用于在再现设备的搜索模式操作期间从每个轨道转播地址信号的系统

    公开(公告)号:US4550393A

    公开(公告)日:1985-10-29

    申请号:US376970

    申请日:1982-05-11

    摘要: An address signal reproducing system is provided in a rotary recording medium reproducing apparatus which reproduces signals from a rotary recording medium by a reproducing element, where the rotary recording medium is recorded with an address signal in units of predetermined sections for a plurality of sections for each track turn of the rotary recording medium. The address signal reproducing system comprises a kick pulse signal generator for generating a kick pulse signal for forcibly shifting the reproducing element to an adjacent track, a shifting circuit for performing tracking control with respect to the reproducing element and shifting the reproducing element to an adjacent track when applied with the kick pulse signal generated by the kick pulse signal generator, and a stopping circuit for stopping the kick pulse signal from being generated by the kick pulse signal generator during an interval in which the reproducing element traces over at least one of the predetermined sections of the rotary recording medium. The reproducing element reproduces the address signal under a tracking controlled state without being shifted, during the interval in which the generation of the kick pulse signal is stopped by the stopping circuit.

    摘要翻译: 地址信号再现系统设置在旋转记录介质再现装置中,该再现装置通过再现元件再现来自旋转记录介质的信号,其中旋转记录介质被记录有用于每个部分的多个部分的预定部分的地址信号 轨道转动旋转记录介质。 地址信号再现系统包括一个起搏脉冲信号发生器,用于产生用于将再现元件强制地移动到相邻轨道的反冲脉冲信号;移位电路,用于对再现元件执行跟踪控制,并将再现元件移位到相邻轨道 当施加由起搏脉冲信号发生器产生的反冲脉冲信号时,以及停止电路,用于在所述再现元件跟踪预定的至少一个之间的间隔期间停止由所述起搏脉冲信号发生器产生的所述起搏脉冲信号 旋转记录介质的部分。 在跳闸脉冲信号的产生由停止电路停止的间隔期间,再现元件在跟踪控制状态下再现地址信号而不被移位。

    Quick-motion reproducing system in a rotary recording medium reproducing
apparatus
    5.
    发明授权
    Quick-motion reproducing system in a rotary recording medium reproducing apparatus 失效
    在旋转记录介质再现装置中的快速运动再现系统

    公开(公告)号:US4482925A

    公开(公告)日:1984-11-13

    申请号:US357294

    申请日:1982-03-11

    摘要: A quick-motion reproducing system is applied to a reproducing apparatus for reproducing a rotary recording medium by a reproducing element. The rotary recording medium is recorded with a video signal on a spiral track, and further recorded with a predetermined reference signal. The predetermined reference signal is recorded within intervals corresponding to vertical synchronizing signals within vertical blanking periods of the recorded video signal, for each track turn of the spiral track. The quick-motion reproducing system comprises a kick pulse generating circuit for generating a kick pulse only within a predetermined shifting interval including the vertical blanking period of the recorded video signal and intervals in the vicinity of this vertical blanking period, and a shifting circuit applied with the generated kick pulse, for successively shifting the reproducing element to adjacent tracks, only within the above predetermined shifting interval.

    摘要翻译: 快速再现系统被应用于再现元件再现旋转记录介质的重放装置。 旋转记录介质在螺旋轨迹上记录有视频信号,并进一步用预定的参考信号记录。 对于螺旋轨道的每个轨道转弯,在记录的视频信号的垂直消隐周期内的垂直同步信号的间隔内记录预定参考信号。 快速运动再现系统包括一个起搏脉冲发生电路,用于仅在包括记录的视频信号的垂直消隐周期和该垂直消隐周期附近的间隔的预定移位间隔内产生起搏脉冲,以及应用 生成的起搏脉冲,用于仅在上述预定的换档间隔内将再现元件连续地移动到相邻轨道。

    High-speed search system in a rotary recording medium reproducing
apparatus
    6.
    发明授权
    High-speed search system in a rotary recording medium reproducing apparatus 失效
    旋转记录介质再现装置中的高速搜索系统

    公开(公告)号:US4428074A

    公开(公告)日:1984-01-24

    申请号:US301307

    申请日:1981-09-11

    摘要: A high-speed search system in a rotary recording medium reproducing apparatus having a reproducing transducer including a reproducing element for reproducing recorded signals from a rotary recording medium in which an information signal and a chapter address signal including a program number of the information signal are recorded, and transferring mechanism for transferring the reproducing transducer along the radial direction of the rotary recording medium, comprises a designating circuit for designating a program number of a desired program which is to be reproduced, a reproducing circuit for reproducing a chapter address signal from a signal reproduced by the reproducing transducer; and a control circuit for comparing the designated program number with a program number of the reproduced chapter address signal and transferring the reproducing transducer at a high speed by the transferring mechanism towards a direction where the two program numbers coincide when the two program numbers differ, and controlling so that the reproducing transducer is transferred towards the direction where the two program numbers coincide according to the difference in the position of the reproducing element and a predetermined position within a program of the designated program number.

    摘要翻译: 一种旋转记录介质再现装置中的高速搜索系统,具有一个重放换能器,该重放换能器包括一个再现元件,用于再现记录信息的旋转记录介质,其中信息信号和包含信息信号的节目号码的章节地址信号被记录 以及用于沿着旋转记录介质的径向传送再现传感器的传送机构包括:用于指定要再现的期望节目的节目号的指定电路,用于从信号再现章节地址信号的再现电路 由再现传感器再现; 以及控制电路,用于将指定的节目号码与再现的章节地址信号的节目号码进行比较,并且当两个节目号码不同时,通过传送机构向高速传送重放传感器朝向两个节目号码重合的方向;以及 控制使得再现传感器被传送到根据再现元件的位置与指定节目号码的节目内的预定位置之间的两个节目号码重合的方向。

    Rotary recording medium which is playable in still picture, slow-motion
and normal reproduction modes
    7.
    发明授权
    Rotary recording medium which is playable in still picture, slow-motion and normal reproduction modes 失效
    旋转记录介质,可以静止图像,慢动作和正常再现模式播放

    公开(公告)号:US4638376A

    公开(公告)日:1987-01-20

    申请号:US818057

    申请日:1986-01-10

    摘要: 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.

    摘要翻译: 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。

    Rotary recording medium reproducing apparatus
    8.
    发明授权
    Rotary recording medium reproducing apparatus 失效
    旋转记录介质再现装置

    公开(公告)号:US4573092A

    公开(公告)日:1986-02-25

    申请号:US388142

    申请日:1982-06-14

    CPC分类号: G11B17/049 G11B19/04

    摘要: A rotary recording medium reproducing apparatus comprises a holding mechanism for clamping and holding a lid plate and a rotary recording medium when a case having a jacket accommodating therein the rotary recording medium and the lid plate for closing the jacket is inserted into the reproducing apparatus through an inserting opening, where the lid plate and the rotary recording medium thus clamped and held are recovered within an empty jacket inserted through the inserting opening, a control mechanism for putting the reproducing apparatus in a state possible or not to insert the case or the jacket into the reproducing apparatus through the inserting opening, a detection circuit for detecting whether the rotary recording medium exists within the reproducing apparatus, a single load/eject switch, and a control circuit for controlling the control mechanism by use of a detection output of the detection circuit and an output of the load/eject switch, so that a state possible for inserting the case into the reproducing apparatus is obtained when the rotary recording medium does not exist within the reproducing apparatus, and a state possible for inserting the empty jacket into the reproducing apparatus is obtained when the rotary recording medium does exist within the reproducing apparatus in order to enable recovery of the rotary recording medium.

    摘要翻译: 一种旋转记录介质再现装置包括一个用于夹持和保持盖板的保持机构和一个旋转记录介质,当具有容纳在其中的旋转记录介质的外壳和用于关闭外壳的盖板被插入到再现装置中时 插入开口,其中盖板和由此夹持并保持的旋转记录介质在穿过插入孔插入的空套中回收,用于将再现装置置于可能状态或不将插入壳体或夹套的状态的控制机构 通过插入口的再现装置,用于检测旋转记录介质是否存在于再现装置内的检测电路,单个装载/排出开关和用于通过检测电路的检测输出来控制控制机构的控制电路 以及加载/排出开关的输出,使得可以插入的状态 当旋转记录介质不存在于再现装置内时,获得再现设备的情况,并且当旋转记录介质确实存在于再现设备内时,可以获得将空套插入再现设备的状态,以便 使得能够恢复旋转记录介质。

    Address indicator control device in a rotary recording medium
reproducing apparatus
    9.
    发明授权
    Address indicator control device in a rotary recording medium reproducing apparatus 失效
    旋转记录介质再现装置中的地址指示器控制装置

    公开(公告)号:US4489398A

    公开(公告)日:1984-12-18

    申请号:US387550

    申请日:1982-06-11

    摘要: An address indicator control device in a rotary recording medium reproducing apparatus having a reproducing transducer for reproducing a rotary recording medium recorded with at least two kinds of address signals together with an information signal, a circuit for transferring the reproducing transducer to a set address position on the rotary recording medium reproducing apparatus to carry out a search operation, and an indicator for indicating an address, comprises an indication mode setting circuit for setting the kind of address to be indicated on the indicator, a search address setting circuit for setting the kind of address to be searched and the address value, an address signal separation circuit for separating an address signal from a signal reproduced from the rotary recording medium by the reproducing transducer, and a control circuit for indicating an address of the kind and value set by the search address setting circuit on the indicator regardless of the setting by the indication mode setting circuit, at lease during the search operation of the reproducing transducer, and until a predetermined time has elapsed from the start of the search operation when the duration of the search operation is shorter than the above predetermined time.

    摘要翻译: 一种旋转记录介质再现装置中的地址指示器控制装置,具有用于再现记录有至少两种地址信号的信息信号的旋转记录介质的再现换能器,用于将再现换能器传送到设定地址位置的电路 用于执行搜索操作的旋转记录介质再现装置和用于指示地址的指示器包括:指示模式设置电路,用于设置要在指示器上指示的地址的种类;搜索地址设置电路, 要搜索的地址和地址值,用于将地址信号与由再现换能器从旋转记录介质再现的信号分离的地址信号分离电路,以及用于指示通过搜索设置的种类和值的地址的控制电路 指示灯上的地址设置电路,无论通过指示如何设置 在再现换能器的搜索操作期间,至少在搜索操作的持续时间比上述预定时间短时,直到从搜索操作开始经过预定时间为止。