Television signal recording and reproducing apparatus
    1.
    发明授权
    Television signal recording and reproducing apparatus 失效
    电视信号记录和再现装置

    公开(公告)号:US6031959A

    公开(公告)日:2000-02-29

    申请号:US766644

    申请日:1996-12-13

    摘要: The video signal input is converted to high-speed reproduction data by a high-speed reproduction data encoder 1. The video signal input is converted to high-speed reproduction data by a formatter 2, which formats the high-speed reproduction data so that the same data is recorded to n tracks. After the recorded data is input to an error correction encoder 3, it is decoded by a decoder 4 and recorded by a recording head 5 to the magnetic tape 6. During reproduction, the recorded data is reproduced by reproduction head 7 from the magnetic tape 6, and decoded by decoder 8. The decoded data is then error corrected by an error correction decoder 9, and then input to a deformatter 10. The deformatter 10 separates the normal reproduction data from the high-speed reproduction data, and separately outputs both data types. During normal reproduction, the normal reproduction data is output by a switch 13; the high-speed reproduction data is decoded to video data by a high-speed reproduction data decoder during high speed reproduction, and output.

    摘要翻译: 视频信号输入通过高速再现数据编码器1转换为高速再现数据。格式化器2将视频信号输入转换成高速再现数据,格式化器将格式化高速再现数据,使得 相同的数据被记录到n个轨道。 在将记录数据输入到纠错编码器3之后,由解码器4解码并由记录头5记录到磁带6.在再现期间,记录数据由再生磁头7从磁带6再现 并由解码器8解码。解码数据然后由纠错解码器9进行纠错,然后输入到去格子化器10.去格式化器10将正常再现数据与高速再现数据分开,并且分别输出两个数据 类型。 在正常再现期间,正常再现数据由开关13输出; 在高速再现期间,高速再现数据被高速再现数据解码器解码为视频数据并被输出。

    Apparatus for recording and playing back digital data
    2.
    发明授权
    Apparatus for recording and playing back digital data 失效
    用于记录和播放数字数据的设备

    公开(公告)号:US5543937A

    公开(公告)日:1996-08-06

    申请号:US235956

    申请日:1994-05-02

    摘要: An apparatus serving as a digital videocassette recorder (VCR) for recording analog video and audio signals as digital signals. The apparatus serves also as a digital data storage drive. The digital VCR and the storage drive share common circuitry and a common magnetic recording medium. This reduces the cost and enhances the efficiency at which tracks are used. The apparatus has a large storage capacity. The apparatus divides input digital data into two parts and performs error correction encoding for each of these two data parts to form sync blocks. These sync blocks are recorded in an audio signal recording area and a video signal recording area, respectively, on the recording medium. Error correction codes used during reading of digital data are the same as those used during recording of video and audio signals. The same track structure and the same sync block structure are used for these two modes of operation.

    摘要翻译: 一种用作数字录像机(VCR)的装置,用于将模拟视频和音频信号作为数字信号进行记录。 该装置还用作数字数据存储驱动器。 数字VCR和存储驱动器共享公共电路和公共磁记录介质。 这降低了成本并提高了使用轨道的效率。 该设备具有大的存储容量。 该装置将输入数字数据分成两部分,并对这两个数据部分中的每一个执行纠错编码以形成同步块。 这些同步块分别记录在记录介质上的音频信号记录区和视频信号记录区中。 在数字数据读取期间使用的纠错码与记录视频和音频信号时使用的纠错码相同。 对于这两种操作模式,使用相同的轨道结构和相同的同步块结构。

    Apparatus for recording digital signals with associated auxiliary data
    3.
    发明授权
    Apparatus for recording digital signals with associated auxiliary data 失效
    用相关辅助数据记录数字信号的装置

    公开(公告)号:US5446597A

    公开(公告)日:1995-08-29

    申请号:US208301

    申请日:1994-03-10

    摘要: In order to reproduce highly important information easily and at high speed, such information is composed into data of fixed length and is assigned from the beginning of a block. Without increasing the recording rate, in order to record a signal so that the highly important information may be reproduced securely, a dummy sync block is inserted immediately before a data sync block which contains the highly important information for defining or explaining the content of the signal to be recorded. To maintain the error correction capability in a normal play mode, moreover, the sync block composition which is the same as in the signal to be recorded is used for the highly important information. In particular, as for such information, by assigning the information in plural sync blocks, reproduction is securely realized also in the case of a trick play mode.

    摘要翻译: 为了容易地和高速地再现高度重要的信息,这样的信息被构成为固定长度的数据,并且从块的开始被分配。 在不增加记录速率的情况下,为了记录信号以使得可以安全地再现高度重要的信息,在紧接在包含用于定义或解释信号内容的非常重要的信息的数据同步块之前插入虚拟同步块 被记录。 此外,为了在正常播放模式下保持纠错能力,与要记录的信号相同的同步块组合用于高度重要的信息。 特别地,对于这样的信息,通过在多个同步块中分配信息,在特技播放模式的情况下也可以安全地实现再现。

    Digital signal recording apparatus
    6.
    发明授权
    Digital signal recording apparatus 失效
    数字信号记录装置

    公开(公告)号:US5787221A

    公开(公告)日:1998-07-28

    申请号:US850263

    申请日:1997-04-29

    摘要: The digital signal recording apparatus of the invention for recording a video signal on a recording medium, includes: a mode setting section for setting a recording mode, the recording mode being one of a standard recording mode and a long-time recording mode having a longer recording time than that of the standard recording mode; a sampling section for sampling the video signal at a sampling number corresponding to the recording mode set by the mode setting section, the sampling number when the selected recording mode is the long-time recording mode being smaller than the sampling number when the selected recording mode is the standard recording mode; a coding section for coding the video signal sampled by the sampling section at a compression rate corresponding to the recording mode set by the mode setting section, the compression rate when the selected recording mode is the long-time recording mode being higher than the compression rate when the selected recording mode is the standard recording mode; and a recording section for recording the video signal coded by the coding section on a recording medium.

    摘要翻译: 本发明的用于在记录介质上记录视频信号的数字信号记录装置包括:模式设置部分,用于设置记录模式,记录模式是标准记录模式和长时间记录模式之一 录制时间高于标准录音模式; 采样部分,用于以对应于由模式设置部分设置的记录模式的采样数采样视频信号,当所选择的记录模式是长时间记录模式时,当所选择的记录模式 是标准录音模式; 编码部分,用于以与由模式设置部分设置的记录模式对应的压缩率对采样部分采样的视频信号进行编码,当所选择的记录模式是长时间记录模式时的压缩率高于压缩率 当所选择的记录模式是标准记录模式时; 以及记录部分,用于将由编码部分编码的视频信号记录在记录介质上。

    Digital signal recording apparatus for sampling and compressing signals according to various recording modes
    8.
    发明授权
    Digital signal recording apparatus for sampling and compressing signals according to various recording modes 失效
    数字信号记录装置,用于根据各种记录模式对信号进行采样和压缩

    公开(公告)号:US06295406B1

    公开(公告)日:2001-09-25

    申请号:US08979078

    申请日:1997-11-26

    IPC分类号: H04N9825

    摘要: The digital signal recording apparatus of the invention for recording a video signal on a recording medium, includes: a mode setting section for setting a recording mode, the recording mode being one of a standard recording mode and a long-time recording mode having a longer recording time than that of the standard recording mode; a sampling section for sampling the video signal at a sampling number corresponding to the recording mode set by the mode setting section, the sampling number when the selected recording mode is the long-time recording mode being smaller than the sampling number when the selected recording mode is the standard recording mode; a coding section for coding the video signal sampled by the sampling section at a compression rate corresponding to the recording mode set by the mode setting section, the compression rate when the selected recording mode is the long-time recording mode being higher than the compression rate when the selected recording mode is the standard recording mode; and a recording section for recording the video signal coded by the coding section on a recording medium.

    摘要翻译: 本发明的用于在记录介质上记录视频信号的数字信号记录装置包括:模式设置部分,用于设置记录模式,记录模式是标准记录模式和长时间记录模式之一 录制时间高于标准录音模式; 采样部分,用于以对应于由模式设置部分设置的记录模式的采样数采样视频信号,当所选择的记录模式是长时间记录模式时,当所选择的记录模式 是标准录音模式; 编码部分,用于以与由模式设置部分设置的记录模式相对应的压缩率对采样部分采样的视频信号进行编码,当所选择的记录模式是长时间记录模式时的压缩率高于压缩率 当所选择的记录模式是标准记录模式时; 以及记录部分,用于将由编码部分编码的视频信号记录在记录介质上。

    Digital signal recording apparatus
    9.
    发明授权
    Digital signal recording apparatus 失效
    数字信号记录装置

    公开(公告)号:US06215950B1

    公开(公告)日:2001-04-10

    申请号:US08708703

    申请日:1996-09-05

    IPC分类号: H04N5783

    摘要: The digital signal recording apparatus of the invention for recording a video signal on a recording medium, includes: a mode setting section for setting a recording mode, the recording mode being one of a standard recording mode and a long-time recording mode having a longer recording time than that of the standard recording mode; a sampling section for sampling the video signal at a sampling number corresponding to the recording mode set by the mode setting section, the sampling number when the selected recording mode is the long-time recording mode being smaller than the sampling number when the selected recording mode is the standard recording mode; a coding section for coding the video signal sampled by the sampling section at a compression rate corresponding to the recording mode set by the mode setting section, the compression rate when the selected recording mode is the long-time recording mode being higher than the compression rate when the selected recording mode is the standard recording mode; and a recording section for recording the video signal coded by the coding section on a recording medium.

    摘要翻译: 本发明的用于在记录介质上记录视频信号的数字信号记录装置包括:模式设置部分,用于设置记录模式,记录模式是标准记录模式和长时间记录模式之一 录制时间高于标准录音模式; 采样部分,用于以对应于由模式设置部分设置的记录模式的采样数采样视频信号,当所选择的记录模式是长时间记录模式时,当所选择的记录模式 是标准录音模式; 编码部分,用于以与由模式设置部分设置的记录模式对应的压缩率对采样部分采样的视频信号进行编码,当所选择的记录模式是长时间记录模式时的压缩率高于压缩率 当所选择的记录模式是标准记录模式时; 以及记录部分,用于将由编码部分编码的视频信号记录在记录介质上。