Picture signal reproducing method and picture signal reproducing
apparatus
    1.
    发明授权
    Picture signal reproducing method and picture signal reproducing apparatus 失效
    图像信号再现方法和图像信号再现装置

    公开(公告)号:US5644506A

    公开(公告)日:1997-07-01

    申请号:US397210

    申请日:1995-04-17

    摘要: Only monitor side is caused to have decoding unit portion for bit stream, and reading unit portion for bit stream, decoding unit portion for bit stream and recording unit portion for bit stream are linked by digital network. Reproducing unit is caused to have a function to reproduce bit stream as it is, and recording unit is caused to have a function to record bit stream as it is. Bit stream reproducing unit and bit stream decoding unit of the monitor side, and such reproducing unit and bit stream recording unit are linked by high speed digital network. Thus, in the case where there is constructed a moving picture reproducing system such that a plurality of moving picture reproducing units are connected to one moving picture display unit to utilize source desired to see by selection of switch, cost can be reduced and degradation of the picture quality can be prevented.

    摘要翻译: PCT No.PCT / JP94 / 01140 Sec。 371日期1995年04月17日 102(e)日期1995年4月17日PCT 1994年7月12日PCT公布。 公开号WO95 / 02947 日期1995年1月26日只有监视器侧具有用于比特流的解码单元部分,并且用于比特流的读取单元部分,用于比特流的解码单元部分和用于比特流的记录单元部分由数字网络链接。 使再现单元具有再现位流的功能,并且使得记录单元具有直接记录比特流的功能。 监视器侧的比特流再现单元和比特流解码单元,并且这种再现单元和比特流记录单元通过高速数字网络链接。 因此,在构成运动图像再现系统的情况下,使得多个运动图像再现单元连接到一个运动图像显示单元以利用通过选择开关而需要看到的源,可以降低成本并降低 可以防止图像质量。

    Apparatus and method for producing downwards compatible video signals
with increased vertical resolution, and apparatus for reproducing and
displaying same
    5.
    发明授权
    Apparatus and method for producing downwards compatible video signals with increased vertical resolution, and apparatus for reproducing and displaying same 失效
    用于产生具有增加的垂直分辨率的向下兼容视频信号的装置和方法,以及用于再现和显示它的装置

    公开(公告)号:US5510902A

    公开(公告)日:1996-04-23

    申请号:US459496

    申请日:1995-06-02

    摘要: Apparatus for deriving from a motion picture film for transfer to a video recording medium a video signal having increased vertical resolution for display using progressive scanning. In the apparatus, a deriving system derives the video signal from the motion picture film; a flag signal generating circuit generates a flag signal indicating that the video signal is for display using progressive scanning; and a recording system records the video signal and the flag signal in the recording medium. In a method of deriving from an interlaced high-definition video signal an interlaced standard-definition video signal having increased vertical resolution, the interlaced high-definition video signal is converted into a progressive high-definition video signal. The number of pixels in the progressive high-definition video signal is reduced to provide a progressive standard-definition video signal, which is converted into the interlaced standard-definition video signal. An apparatus for reproducing a video signal recorded on a recording medium includes a system for reproducing the video signal from the recording medium, and a circuit for extracting from the reproduced video signal a flag signal indicating a display scanning mode for the video signal. A display apparatus includes a circuit for receiving a flag signal indicating a display scanning mode for the video signal, and for generating a control signal; and a circuit, responsive to the control signal, for displaying the video signal in the display scanning mode.

    摘要翻译: 用于从用于传送到视频记录介质的运动图像胶片导出具有增加的用于使用逐行扫描显示的垂直分辨率的视频信号的装置。 在该装置中,导出系统从电影胶片中导出视频信号; 标志信号发生电路使用逐行扫描生成指示视频信号用于显示的标志信号; 并且记录系统将视频信号和标志信号记录在记录介质中。 在隔行高清晰度视频信号中,由于具有增加的垂直分辨率的隔行扫描标准清晰度视频信号,所以隔行扫描的高分辨率视频信号被转换为逐行高清视频信号。 逐行高清晰度视频信号中的像素数量被减少以提供逐行的标准清晰度视频信号,其被转换成隔行扫描的标准清晰度视频信号。 用于再现记录在记录介质上的视频信号的装置包括用于从记录介质再现视频信号的系统,以及用于从再现视频信号中提取表示视频信号的显示扫描模式的标志信号的电路。 显示装置包括用于接收指示视频信号的显示扫描模式的标志信号并产生控制信号的电路; 以及响应于控制信号的电路,用于以显示扫描模式显示视频信号。

    Apparatus and method for encoding and decoding digital video data
    6.
    发明授权
    Apparatus and method for encoding and decoding digital video data 有权
    用于对数字视频数据进行编码和解码的装置和方法

    公开(公告)号:US06363212B1

    公开(公告)日:2002-03-26

    申请号:US09363723

    申请日:1999-07-29

    IPC分类号: H04N5928

    摘要: Digital video data encoder and decoder operate to enable the low and high speed reproduction of variable rate encoded digital video data by reproducing and decoding intraframe encoded frames that are identified by previously reproduced intraframe encoded frames. In the encoder, digital video data is variable rate encoded, for example, intraframe and interframe encoded, entry points (i.e., beginning positions) of selected encoded video data are identified and which represent video frames that occur at predetermined intervals of time (e.g., 1, 2 and 4 seconds) in the video picture. Entry point data that identify these positions are generated and added to the encoded video data before the video data is recorded on a record medium. When the encoded data is reproduced from the record medium, the entry point data is extracted therefrom and stored, and a successive intraframe encoded frame identified by the extracted entry point data is reproduced and decoded. The invention further provides for a record medium having thereon the encoded digital video data, and also provides for an encoder and corresponding decoder which encode and decode, respectively, digital still image and audio data in which entry points refer to each of the still images and also to particular intervals of time of the audio data.

    摘要翻译: 数字视频数据编码器和解码器通过再现和解码由先前再现的帧内编码帧识别的帧内编码帧来实现可变速率编码数字视频数据的低速和高速再现。 在编码器中,数字视频数据是可变速率编码的,例如,帧内和帧间编码,所选编码视频数据的入口点(即起始位置)被识别,并且代表以预定时间间隔发生的视频帧(例如, 1,2和4秒)。 在将视频数据记录在记录介质上之前,生成识别这些位置的入口点数据并添加到编码视频数据。 当从记录介质再现编码数据时,从其中提取入口点数据并存储,并且再现并解码由提取的入口点数据识别的连续帧内编码帧。 本发明还提供了一种在其上具有编码的数字视频数据的记录介质,并且还提供编码器和对应的解码器,分别编码和解码数字静态图像和音频数据,其中入口点涉及每个静止图像, 也是音频数据的特定时间间隔。