公开(公告)号：US5260800A

公开(公告)日：1993-11-09

申请号：US883066

申请日：1992-05-08

申请人： Albert G. Sturm ,  Kevin Stec ,  David H. Rubenstein

发明人： Albert G. Sturm ,  Kevin Stec ,  David H. Rubenstein

IPC分类号： G11B7/28 ,  G11B20/10 ,  G11B27/022 ,  G11B27/024 ,  G11B27/031 ,  G11B27/032 ,  H04N5/92 ,  H04N5/94 ,  H04N9/79 ,  H04N9/802 ,  H04N9/83 ,  H04N9/835 ,  H04N9/88 ,  H04N9/80

CPC分类号： G11B20/10 ,  G11B27/022 ,  G11B27/031 ,  G11B7/28 ,  H04N5/94 ,  H04N9/79 ,  H04N9/831 ,  G11B2220/20 ,  G11B2220/2587 ,  G11B2220/90 ,  G11B27/024 ,  G11B27/032 ,  H04N5/9206 ,  H04N9/802 ,  H04N9/835 ,  H04N9/88

摘要： A laser video disk master is operated at 2.times. speed for duplicating video information to be recorded in VHS format. Two last disk video players are modified to operate in synchronism in order to multiplex from one to the other in duplicating video programs of length equal to the two recorded disks. The 2.times. frequency NTSC format video output signal is then demodulated, drop out detection is performed, and the digitally-encoded stereo audio information is separated, error corrected, and converted by digital to analog (D/A) conversion to left and right channels of stereo analog information. The left and right channels of audio information are presented simultaneously to an FM modulator for presentation to rotating video heads and to a 2.times. Dolby processor for presentation to linear heads. The demodulated 2.times. video information is converted to digital information by an analog to digital (A/D) converter and then time-base corrected and drop out compensated. New sync and blanking signals in digital form are switched into the digitized video signal, and digital color-under chroma processing and digital luminance noise reduction processing are performed. The 2.times. composite time base corrected and color-under processed video signal is then D/A converted to analog form for 2.times. speed duplication of VHS cassette copies. With suitable buffering, the signal may be presented to a bank of VHS recorders.

摘要翻译： 激光视频磁盘主机以2x速度运行，用于复制要以VHS格式记录的视频信息。 两个最后的磁盘视频播放器被修改为同步操作，以便在复制长度等于两个记录的磁盘的视频节目时从一个复制到另一个。 然后解调2倍频NTSC格式视频输出信号，执行丢失检测，数字编码立体声音频信息被分离，纠错，并通过数模转换（D / A）转换为左右声道 立体声模拟信息。 音频信息的左声道和右声道同时呈现给FM调制器，以呈现给旋转视频头和用于呈现到线性头的2x杜比处理器。 解调的2x视频信息通过模数（A / D）转换器转换为数字信息，然后进行时基校正和退出补偿。 以数字形式将新的同步和消隐信号切换为数字化视频信号，并进行数字彩色色处理和数字亮度降噪处理。 然后将2x复合时基校正和彩色处理视频信号D / A转换为模拟形式，用于速度复制VHS盒式复印件。 通过适当的缓冲，信号可以呈现给一组VHS记录器。

公开(公告)号：US4802048A

公开(公告)日：1989-01-31

申请号：US926368

申请日：1986-10-31

申请人： Leland M. Perkins ,  Ralph L. Dodds ,  David H. Rubenstein ,  Roger D. Nicholson

发明人： Leland M. Perkins ,  Ralph L. Dodds ,  David H. Rubenstein ,  Roger D. Nicholson

IPC分类号： G11B15/02 ,  G11B23/087 ,  G11B23/28 ,  G11B23/42 ,  G11B15/32 ,  G11B23/04

CPC分类号： G11B23/287 ,  G11B23/08721 ,  G11B23/0875

摘要： An assembly added to a conventional VHS cassette provides a wheel for counting the number of plays, or replays of segments of more than a predetermined length, and preventing further replay after the last authorized play by either releasing a spring biased arm to carry an erase head against the tape, or locking the cassette brakes in the engaged position once the cassette is removed form the tape deck.

摘要翻译： 添加到常规VHS盒中的组件提供用于计数多个播放次数或多个预定长度的段的重放的轮，并且通过释放弹簧偏置臂来携带擦除头来防止在最后授权的播放之后的进一步重放 一旦盒式磁带从磁带机上取下，就将磁带制动器锁定在接合位置。