Record and playback device
    9.
    发明授权
    Record and playback device 失效
    记录和播放设备

    公开(公告)号:US06810198B1

    公开(公告)日:2004-10-26

    申请号:US09713150

    申请日:2000-11-15

    IPC分类号: H04N591

    摘要: A number of outer parities to be added to an audio data is changed responsive to a ratio of frame frequencies of a video signal (e.g. 24 Hz or 30 Hz) before the data is recorded. Comparing with a first format, a recording bit rate is increased in a second format. Audio 4 channels (audio sectors 5-8) are additionally recorded maintaining a video data format (video sectors 1, 2) of the first format and an audio data format (audio sectors 1-4) of the first format.

    摘要翻译: 响应于在记录数据之前的视频信号(例如24Hz或30Hz)的帧频率的比率来改变要添加到音频数据的多个外部奇偶校验。 与第一格式相比,以第二格式增加记录比特率。 附加地记录音频4声道(音频扇区5-8),保持第一格式的视频数据格式(视频扇区1,2)和第一格式的音频数据格式(音频扇区1-4)。

    High efficiency coding device and high efficiency coding method for image data
    10.
    发明授权
    High efficiency coding device and high efficiency coding method for image data 失效
    用于在整个图像区域均匀分布宏块的高效率编码装置和方法

    公开(公告)号:US06526098B1

    公开(公告)日:2003-02-25

    申请号:US08947297

    申请日:1997-10-08

    IPC分类号: H04N712

    摘要: A video signal recording apparatus including a switching device for receiving a digital progressive scan TV signal having a frame cycle which is ½ of the frame cycle of an interlaced scan TV signal and switching the progressive scan TV signal frame by frame alternately; a coding device for performing high-rate coding of data corresponding to one frame of the progressive scan TV signal to the same code amount as obtained by high-rate coding of data corresponding to one frame including two successive fields of an interlaced scan standard-definition TV signal; and a recording device for recording the data processed with the high-rate coding in the same number of tracks as the data corresponding to one frame of the interlaced scan standard-definition TV signal.

    摘要翻译: 一种视频信号记录装置,包括用于接收数字逐行扫描TV信号的开关装置,该信号的帧周期为隔行扫描TV信号的帧周期的1/2,并交替逐行扫描TV信号; 用于对与逐行扫描TV信号的一帧相对应的数据进行高速率编码的编码装置与通过对包括隔行扫描标准清晰度的两个连续字段的一帧相对应的数据的高速率编码获得的相同的代码量进行编码 电视信号; 以及记录装置,用于以与对应于隔行扫描标准清晰度TV信号的一帧的数据相同数量的轨道记录用高速率编码处理的数据。