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    • 64. 发明授权
    • Digital video editor having lost video frame protection
    • 数字视频编辑器丢失了视频帧保护
    • US5367341A
    • 1994-11-22
    • US963737
    • 1992-10-20
    • Peter Schnorf
    • Peter Schnorf
    • H04N5/7826G11B27/024G11B27/026G11B27/028G11B27/029G11B27/034G11B27/34G11B27/36H04N5/91H04N5/907
    • G11B27/029G11B27/034G11B27/34G11B2220/20G11B2220/2587G11B2220/41G11B2220/90G11B27/024G11B27/026G11B27/028G11B27/36
    • A digital video editing apparatus in which the frame number information that is encoded in non-visible portions of frames in an analog video signal is utilized to ensure that there are no missing frames of corresponding digital video information. The frames of analog video information are digitized and stored in the editing apparatus using a two-pass procedure. In the first pass, as many analog video frames as possible are digitized and stored, and the frame numbers from the frames are utilized to form a list of missing frames. In the second pass, the missing frame list is utilized to reposition the analog video source and to read in the missing frames. If desired, a digital frame trap may be provided such that the contents of a temporary frame memory are frozen until computer processing apparatus has enough time permanently to store the trapped frame. Once a complete set of digital frames has been converted and stored, digital video editing may be undertaken, and the edited digital frames may be outputted in analog form.
    • 一种数字视频编辑装置,其中使用在模拟视频信号中的帧的不可见部分中编码的帧号信息来确保没有相应的数字视频信息的丢失帧。 模拟视频信息的帧被数字化并且使用双程程序存储在编辑装置中。 在第一遍中,尽可能多的模拟视频帧被数字化和存储,并且来自帧的帧号用于形成缺失帧的列表。 在第二遍,丢失的帧列表用于重新定位模拟视频源并读取丢失的帧。 如果需要,可以提供数字帧陷阱,使得临时帧存储器的内容被冻结,直到计算机处理装置具有足够的时间来永久地存储被捕获的帧。 一旦完整的一组数字帧被转换和存储,就可进行数字视频编辑,并且编辑的数字帧可以以模拟形式输出。
    • 65. 发明授权
    • Apparatus for minimizing signal degradation during the copying of video
signals from one recording medium to another recording medium
    • 用于在将视频信号从一个记录介质复制到另一个记录介质期间最小化信号劣化的装置
    • US5177619A
    • 1993-01-05
    • US875547
    • 1992-04-27
    • Kouichi Sato
    • Kouichi Sato
    • G11B27/026G11B27/30H04N5/91H04N5/92
    • H04N5/9206G11B27/026G11B27/3027H04N5/91G11B2220/20
    • A dubbing apparatus for dubbing signals in which recording information, such as a distinction between the field picture and the frame picture, the track number, the date of shooting, etc. is multiplexed with compound video signals of a still picture. Revising data is inputted for instructing the revision of recording information. A decoder decodes the recording information to be dubbed. New recording information is prepared on the basis of the revising data and the decoded recording information. An encoder encodes the new recording information, while a modulating circuit modulates the encoded recorded information. A frequency modulation circuit frequency modulates a video signal that is to be dubbed, while a synthesizing circuit multiplexes the modulated recording information and the video signal. The multiplexed signal is recorded on a recording medium, so that it is possible to revise recording information at the time of dubbing.
    • 用于复制信号的复录装置,其中诸如场图像和帧图像之间的区别,轨道号,拍摄日期等的记录信息与静止图像的复合视频信号复用。 输入修改数据以指示记录信息的修改。 解码器对要被复制的记录信息进行解码。 基于修正数据和解码的记录信息准备新的记录信息。 编码器对新的记录信息进行编码,而调制电路对编码的记录信息进行调制。 频率调制电路对要被复制的视频信号进行频率调制,而合成电路复用调制的记录信息和视频信号。 复用的信号被记录在记录介质上,从而可以在转录时修改记录信息。