利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

223 条记录 (耗时 0.016 秒)

    Apparatus for recording and reproducing video signals with preemphasis and deemphasis processes
    25.
    发明公开
    Apparatus for recording and reproducing video signals with preemphasis and deemphasis processes 失效
    用于记录，并与前和去加重再现由信号处理的视频信号的装置。

    公开(公告)号：EP0580144A2

    公开(公告)日：1994-01-26

    申请号：EP93111678.4

    申请日：1993-07-21

    申请人： VICTOR COMPANY OF JAPAN, LIMITED

    发明人： Hirayama, Ryo

    IPC分类号： H04N5/92 ,  G11B27/30 ,  G11B27/032 ,  G11B27/036 ,  G11B15/087

    CPC分类号： G11B27/032 ,  G11B15/087 ,  G11B27/036 ,  G11B27/3054 ,  G11B2220/90 ,  H04N5/9201 ,  H04N5/9206 ,  H04N5/923

    摘要： A video signal recording and reproducing apparatus comprises a magnetic tape (4) into which video signals are recorded, A preemphasis circuit (35) modifies the video signals prior to the recording into the magnetic tape (4), so as to increase magnitude of high-frequency components with respect to magnitude of low-frequency components. A record start or end identification signal is generated in response to a record start or end signal in an identification signal recording circuit (36) which memorizes this identification signal into a corresponding portion of the magnetic tape (4). A mute circuit (46) resets the preemphasis circuit (35) in response to the record start or end signal. There is further provided a deemphasis circuit (37) for modifying the video signals after reproduction from the magnetic tape (4) in a complementary manner with respect to the preemphasis circuit (35), so as to decrease magnitude of high-frequency components with respect to magnitude of low-frequency components. An identification signal detecting circuit (38) detects the record start or end identification signal from the magnetic tape (4) and generates an identification detecting signal. A mute circuit (49) resets the deemphasis circuit (37) in response to the identification detecting signal.

    摘要翻译： 的视频信号记录和重放装置包括一磁带（4）的合成向一个视频信号被记录，A预加重电路（35），修改之前的记录到磁带（4）的视频信号，以便增加的高幅度 - 频率分量相对于低频分量的幅度。 A记录的开始或结束识别信号响应于在识别信号记录电路（36）的记录的开始或结束的信号，它存储该识别信号到磁带（4）的相应部分中产生。 静音电路（46）复位，响应于记录开始或结束信号预加重电路（35）。 还提供了一个去加重电路（37），用于再现之后从磁带（4）以互补的方式相对于所述预加重电路（35）修改所述视频信号，以便减少高频率分量的大小相对于 到低频率分量的幅度。 识别信号检测电路（38）检测从磁带（4）和鉴定基因率检测信号的记录的开始或结束识别信号。 静音电路（49）复位，响应于所述识别信号检测所述去加重电路（37）。

    Device for and method of searching time code recorded on disk
    27.
    发明公开
    Device for and method of searching time code recorded on disk 失效
    Gerätund Verfahren zum Suchen des Zeitkodes auf einer Platte。

    公开(公告)号：EP0572255A2

    公开(公告)日：1993-12-01

    申请号：EP93304130.3

    申请日：1993-05-27

    申请人： PIONEER ELECTRONIC CORPORATION

    发明人： Okubo, Hirotoshi, c/o Pioneer Electronic Corp.

    IPC分类号： G11B7/085 ,  G11B21/08 ,  G11B27/30

    CPC分类号： G11B21/083 ,  G11B7/08529 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/3054 ,  G11B2220/20

    摘要： A device for searching a target time code recorded on a disk with continuous frame addresses includes: a pick up (1) for reproducing information including current time code and current frame address corresponding to a current reproduction position of the pickup from the disk, unit (21) for calculating a time code difference between the target time code and the current time code reproduced by the pickup, unit (12, 13) for setting a target frame address on the basis of the calculated time code difference and the current frame address reproduced by the pickup, unit (8) for calculating shift information including a shift distance and a shift direction from the current reproduction position to the position of the target frame address on the basis of the target frame address and the current frame address, unit (10, 11) for shifting the pickup on the basis of the shift information, unit (7) for storing the current frame address when the shifting unit shifts the pickup in an outer peripheral direction of the disk, and unit (9) for allowing the pickup to continuously reproducing information from the disk from the position of the current frame address stored in the storing unit when the shift distance becomes within a predetermined distance value or when the time code difference becomes within a predetermined difference value until the current reproduction position reaches the reproduction position whose time code is near the target time.

    摘要翻译： 用于搜索记录在具有连续帧地址的盘上的目标时间码的装置包括：拾取装置（1），用于再现包括当前时间码的当前帧地址和与该盘的拾取器的当前再现位置相对应的当前帧地址， 21），用于计算目标时间码与由拾取单元（12,13）再现的当前时间码之间的时间码差，用于基于计算出的时间码差和当前帧地址重放来设置目标帧地址 通过拾取单元（8），用于基于目标帧地址和当前帧地址，计算包括从当前再现位置到目标帧地址的位置的移位距离和移位方向的移位信息，单元（10） ，11），用于根据换档信息移动拾取器，当移位单元在外周d移动拾取器时存储当前帧地址的单元（7） 并且当移位距离变得在预定距离值内时，或者当时间码差异时，允许拾取器从存储在存储单元中的当前帧地址的位置连续再现信息的单元（9） 直到当前再现位置达到其时间码接近目标时间的再现位置为止，达到预定差值内。

    Improved video system, method and apparatus
    28.
    发明公开
    Improved video system, method and apparatus 失效
    改进的视频系统，方法和设备

    公开(公告)号：EP0326830A3

    公开(公告)日：1992-04-22

    申请号：EP89100583.7

    申请日：1989-01-13

    申请人： Perkins, John D.

    发明人： Short, Michael P.

    IPC分类号： H04N5/92 ,  H04N5/91

    CPC分类号： G11B27/031 ,  A63F13/00 ,  A63F2300/203 ,  G11B27/024 ,  G11B27/028 ,  G11B27/032 ,  G11B27/10 ,  G11B27/107 ,  G11B27/28 ,  G11B27/3054 ,  G11B2220/41 ,  G11B2220/90 ,  H04N5/45 ,  H04N5/92 ,  H04N5/9305 ,  H04N9/802 ,  H04N9/8216

    摘要： An improved system, apparatus and method are disclosed for interleaving selected video fields of multiple displayable programs to facilitate viewer selection of which programs to display. Selected video fields are stored and continuously displayed until new, successive video field is selected to update the currently stored video field. In this manner, a sequence of rapidly updated, fixed or frozen video fields provide the appearance of continuous movement of displayed images. Digital data is included in the video fields to identify the particular fields occurring in an arbitrary sequence. The sequence of interleaved video fields may be assembled in real time or stored as a video tape recording, and the information needed to re-assembly correlated video fields of a selected displayable program from the arbitrary sequence of interleaved video fields is included in the digital data in the horizontal scans of traces of each video field in the sequence. Audio signals are included in the video fields of the displayable programs to provide correlated audio signals synchronized with the selected re-assembled video fields of the selected displayable program.

    High-speed search method for use in a disc player system
    29.
    发明公开
    High-speed search method for use in a disc player system 失效
    在DISC PLAYER系统中使用的高速搜索方法

    公开(公告)号：EP0307202A3

    公开(公告)日：1992-02-05

    申请号：EP88308310.7

    申请日：1988-09-08

    申请人： PIONEER ELECTRONIC CORPORATION

    发明人： Hangai, Toshimasa c/o Pioneer Tokorozawa Plant ,  Tateishi, Kiyoshi c/o Pioneer Tokorozawa Plant ,  Ishitoya, Koichi c/o Pioneer Tokorozawa Plant ,  Sakata, Haruyasu

    IPC分类号： G11B21/08 ,  G11B7/085

    CPC分类号： G11B7/08541 ,  G11B7/08517 ,  G11B7/08535 ,  G11B21/083 ,  G11B21/085 ,  G11B27/105 ,  G11B27/3054 ,  G11B2220/20

    摘要： A high-speed search method for searching a target address and for use in a disc player system having a slider (3) for positioning a pickup (2) for reading an information signal recorded on a disc (1) as tracks, in a disc radius, and a tracking servo system (8) for causing an information detecting point of the pickup (2) to follow the track. An accelerating-and-decelerating move control mode in which the slider (3) is accelerated and subsequently decelerated with the tracking servo loop open, and a constant speed move control mode in which the slider (3) is moved at a constant speed by using address data obtained from a signal from the pickup (2) are prepared, and a distance from a present position of the pickup (2) to the target address is detected. Operations of the accelerating-and-decelerating move control mode and subsequently the constant speed move control mode are executed and the tracking servo loop is closed when the distance is equal to or greater than a predetermined value, whereas the operation of the constant speed move control mode is executed without executing the operation of the accelerating-and-decelerating move control mode and the tracking servo loop is closed when the distance is smaller than the predetermined value.