Apparatus for recording digital signals with associated auxiliary data
    22.
    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。

    Apparatus for selectively recording and reproducing two video signals
having different amounts of data in each frame
    23.
    发明授权
    Apparatus for selectively recording and reproducing two video signals having different amounts of data in each frame 失效
    用于选择性地记录和再现在每个帧中具有不同数据量的两个视频信号的装置

    公开(公告)号:US5394275A

    公开(公告)日:1995-02-28

    申请号:US722549

    申请日:1991-06-26

    摘要: Two, HD and SD, signals are arranged so as to be identical to each other in the recorded form on a recording medium. Reciver circuits, encoder circuits, and a recording circuit for SD signals are provided. Also, a receiver circuit, an encoder circuit, and a recording circuit for HD signals are provided. In addition, a circuit is provided for identifying whether the input signal is an SD or HD signal. Accordingly, both the HD and SD signals can be recorded using one single digital VCR while no further hardware is involved. Simultaneous recording of a plurality of SD signals and high-speed dubbing of SD signals may be executed using an HD signal processing circuit.

    摘要翻译: 两个HD和SD信号被布置成在记录介质上以记录的形式彼此相同。 提供采集电路,编码器电路和用于SD信号的记录电路。 此外,还提供了用于HD信号的接收机电路,编码器电路和记录电路。 此外,提供用于识别输入信号是SD还是HD信号的电路。 因此,HD和SD信号可以使用单个数字VCR进行记录,而不涉及另外的硬件。 可以使用HD信号处理电路来执行多个SD信号的同时记录和SD信号的高速转录。

    Method of recording digital signals in an interleaving array form with
enhanced error interpolation
    24.
    发明授权
    Method of recording digital signals in an interleaving array form with enhanced error interpolation 失效
    以增强的误差插值以交错阵列形式记录数字信号的方法

    公开(公告)号:US5311372A

    公开(公告)日:1994-05-10

    申请号:US722674

    申请日:1991-06-28

    摘要: In a method of recording digital signals, in which all audio signals of N channels (N=integer) are recorded on M tracks (M=integer>N) where video signals of I fields (I=integer) are recorded, the improvement including: the M tracks being divided into N track groups each having S tracks (S=integer=M/N) arranged successively such that the audio signals of a j-th channel (j=integer) in the N channels are recorded on the tracks of an i-th track group (i=integer) in the N track groups.

    摘要翻译: 在记录数字信号的方法中,其中记录了N个声道(N =整数)的所有音频信号记录在其中记录了I场(I =整数)的视频信号的M个磁道(M =整数> N)上,其改进包括 :M个磁道被分成N个磁道组,每个磁道组具有连续排列的S个磁道(S =整数= M / N),使得N个通道中的第j个通道(j =整数)的音频信号被记录在磁道上 的第i个磁道组(i =整数)。

    Apparatus and method for recording and reproducing digital signal in
synchronization blocks
    27.
    发明授权
    Apparatus and method for recording and reproducing digital signal in synchronization blocks 失效
    用于在同步块中记录和再现数字信号的装置和方法

    公开(公告)号:US5655050A

    公开(公告)日:1997-08-05

    申请号:US659623

    申请日:1996-06-06

    摘要: A digital signal recording apparatus for recording digital signal in synchronization blocks includes a generator for generating a synchronization pattern for indicating the beginning of each synchronization block, a generator for generating an ID data for indicating the sequence of the synchronization blocks, a generator for generating an ID parity for checking the ID data, a generator for generating additional information signal, which is a track width data, a generator for generating audio and video signals. Above data are applied to a pattern generator for generating track data comprising plural consecutive normal synchronization blocks immediately preceded by two mini-synchronization blocks and immediately followed by one mini-synchronization block. Each mini-synchronization block includes the synchrionization pattern, ID data, ID parity, and additional information signal. Each normal synchronization block includes the synchronization pattern, ID data, ID parity, and audio and video signal.

    摘要翻译: 用于在同步块中记录数字信号的数字信号记录装置包括用于产生用于指示每个同步块的开始的同步模式的发生器,用于产生用于指示同步块的序列的ID数据的发生器,用于生成 用于检查ID数据的ID奇偶校验,用于产生作为轨道宽度数据的附加信息信号的发生器,用于产生音频和视频信号的发生器。 上述数据被应用于模式发生器,用于产生包括紧接在两个小型同步块之前的多个连续正常同步块的跟踪数据,并且紧随其后的是一个小型同步块。 每个小型同步块包括同步模式,ID数据,ID奇偶校验和附加信息信号。 每个正常同步块包括同步模式,ID数据,ID奇偶校验以及音频和视频信号。

    Apparatus for recording and reproducing digital data and method for the same

    公开(公告)号:US06362928B1

    公开(公告)日:2002-03-26

    申请号:US09881453

    申请日:2001-06-14

    IPC分类号: G11B509

    摘要: An apparatus for recording and reproducing digital data according to the present invention, includes: a group converter; a controller; a recording converter; a recording unit; a reproducing unit; a reproducing converter; and a group reverse converter, wherein the group converter includes: a block management data generator for receiving the management data from the controller and generating block management data with respect to the corresponding blocked data, the block management data having a variable-length and containing information concerning each blocked data; a group management data generator for receiving the management data and generating group management data containing information concerning the entire grouped data; and a grouped data generator for receiving the blocked data, the block management data, and the group management data, and generating grouped data by arranging the blocked data, the block management data, and the group management data in a predetermined order.