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1. 发明授权

EP0390477B2 Automatic tracking control system 失效
标题翻译：自动跟踪控制程序
公开(公告)号：EP0390477B2
公开(公告)日：2001-12-19
申请号：EP90303215.9
申请日：1990-03-27
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA
发明人： Mitsuhashi, Yasuo
IPC分类号： G11B15/467
CPC分类号： G11B15/4676

2. 发明公开

EP0974228A2 REPRODUCTION OF A DIGITAL INFORMATION SIGNAL IN A TRICK PLAY REPRODUCTION MODE 审中-公开
标题翻译：玩转数字信息信号在一个“特技播放”播放模式
公开(公告)号：EP0974228A2
公开(公告)日：2000-01-26
申请号：EP99900603.4
申请日：1999-01-28
申请人： Koninklijke Philips Electronics N.V.
发明人： RIJCKAERT, Albert, M., A. , LOOYKENS, Marinus, A., H.
IPC分类号： H04N5/783
CPC分类号： H04N9/8042 , G11B15/1875 , G11B15/4676 , G11B27/005 , G11B27/3027 , G11B27/3063 , H04N5/78263 , H04N5/783 , H04N9/8227
摘要： A tracking control system is proposed for realizing a tracking control in a trick play reproduction mode in a helical scan reproduction apparatus. The tracking is based on the derivation of a tracking error control signal from the track numbers and the sync b lock numbers of the sync blocks read from the tracks in the trick play reproduction mode.

3. 发明公开

EP0958577A2 RECORDING AND REPRODUCTION OF AN INFORMATION SIGNAL IN A SHORT PLAY AND A LONG PLAY MODE 审中-公开
标题翻译：录制和播放的信息信号多空游戏操作
公开(公告)号：EP0958577A2
公开(公告)日：1999-11-24
申请号：EP98951632.0
申请日：1998-11-13
申请人： Koninklijke Philips Electronics N.V.
发明人： RIJCKAERT, Albert, M., A. , LOOYKENS, Marinus, A., H.
IPC分类号： H04N5 , G11B5 , G11B15 , H04N9
CPC分类号： G11B15/087 , G11B5/0086 , G11B5/09 , G11B5/534 , G11B15/125 , G11B15/1875 , G11B15/4672 , G11B15/4676 , H04N9/7921
摘要： An apparatus is disclosed for recording an information signal and a CTL signal on a magnetic record carrier (16). The apparatus is provided with an input (2) for receiving the information signal and at least one write head (10) located on a rotatable head drum (14) for writing the information signal producing slant tracks. A generator (36) for generating a CTL signal having a specific frequency and a write head (34) for writing the CTL signal producing a longitudinal track is also provided. In a first recording mode, a portion of the information signal is recorded by said write head (10) producing a track of information during each revolution of said head drum on said record carrier. The frequency of said CTL signal is such that an edge of the first type in said CTL signal is written in said CTL track for each of said tracks of information written by said write head (10). The record carrier (16) is transported with a predetermined first speed in said first recording mode and the head drum (14) is rotated with a predetermined rotational velocity. In a second recording mode, the write head (10) writes a portion of said information signal producing a track of information during each n-th revolution of said head drum (14) on said record carrier. The record carrier is transported with a second speed which substantially equals the first speed divided by n, in said second recording mode. The head drum is rotated with said same predetermined rotational velocity and a CTL signal having the same predetermined frequency is generated in said second recording mode. n is an integer larger than 1.

4. 发明公开

EP0259195A2 Rotary head type digital signal reproducing apparatus 失效
标题翻译： Wiedergabegerätmit rotierendem Kopffürdigitale Signale。
公开(公告)号：EP0259195A2
公开(公告)日：1988-03-09
申请号：EP87307900.8
申请日：1987-09-07
申请人： VICTOR COMPANY OF JAPAN, LIMITED
发明人： Yamada, Yasuhiro , Ueno, Shoji , Yoshida, Shiro
IPC分类号： G11B15/18 , G11B20/10 , G11B20/18 , G11B15/467
CPC分类号： G11B20/10527 , G11B15/1875 , G11B15/4676 , G11B20/1806
摘要： A rotary head type digital signal reproducing apparatus plays a magnetic tape (16) which is pre-recorded with a tracking reference signal in predetermined starting and ending portions of each track which is formed obliquely to the longitudinal direction of the magnetic tape and with a digital audio signal in an intermediate portion between the starting and ending portions of each track. When playing a magnetic tape pre-recorded in a half-speed mode. only the iape transport speed is set identical to that at the time of the recording. A tracking control is carried out based on tracking reference signals reproduced during predetermined two successive scans out of four successive scans made with respect to every two mutually adjacent tracks.
摘要翻译：旋转头式数字信号再现装置播放一个预先记录有跟踪参考信号的磁带（16），每个磁道的预定起始和结束部分都是与磁带的纵向方向倾斜地形成的，在每个轨道的起始部分和结束部分之间的中间部分中的音频信号。当以半速模式预先记录的磁带进行播放时，只将磁带传送速度设定为与记录时相同。在对于每两个相互相邻的轨道进行的四个连续扫描中，基于在预定的两个连续扫描期间再现的跟踪参考信号执行跟踪控制。

5. 发明公开

EP0169479A2 Auto-tracking method and apparatus of a magnetic recording/reproducing apparatus 失效
标题翻译：用于磁记录和重放装置的自动跟踪方法和装置。
公开(公告)号：EP0169479A2
公开(公告)日：1986-01-29
申请号：EP85108881.5
申请日：1985-07-16
申请人： HITACHI, LTD. , HITACHI MICROCOMPUTER ENGINEERING LTD.
发明人： Kobori, Yasunori , Nishijima, Hideo , Okamoto, Kaneyuki , Fukushima, Isao , Goto, Katsuhiko , Takahashi, Takashi
IPC分类号： G11B15/467
CPC分类号： G11B15/4676
摘要： An auto-tracking method and apparatus of a magnetic recording/reproducing appartus are disclosed. The apparatus comprises: a reference signal generator (9) for generating a reference signal (REF); a rotary cylinder driver (3, 5) for rotating, synchronously with the reference signal, a rotary cylinder to which magnetic heads are attched; a head switching signal generator (16, 17) for detecting a rotational phase of the rotary cyliner and outputting a head switching signal (HS) representative of this detected rotational phase; a reproduction signal envelope level detection circuit (13, 14) for sampling and detecting the envelope levels of the reproduced signals derived by the magnetic heads at timings corresponding to the head switching signal; a tape running apparatus (2, 6) for driving a magnetic tape at a phase difference designated with respect to the rotational phase of the magnetic heads; a reference signal delay circuit (10, 11) for generating a delay reference signal (DREF) to control the tape running apparatus on the basis of the reference signal, in which the delay reference signal is derived by delaying the reference signal by an arbitrary time; and means for conrolling the reference signal delay circuit (12) on the basis of the head switching signal and the detected envelope levels of the reproduced signals in a manner that the reference signal delay circuit first changes the run of the magnetic tape at a rough step within a tracking phase range of 2 1 r and thereby detecting the roughly searched maximum envelope level of the reproduced signals, and then changes the run of the magnetic tape at a fine step within a tracking phase range which is narrower than 2π and which includes the running phase of the magnetic tape corresponding to the roughly searched maximum envelope level and thereby detecting the finely searched maximum envelope level, and thereby allowing the magnetic tape to run at the phase corresponding to the finely searched maximum envelope level. With this apparatus, the best tracking state can be accurately and certainly obtained in a short time.

6. 发明授权

EP0737353B1 MAGNETIC TAPE WITH A TRACK CONFIGURATION AND APPARATUS FOR COOPERATION WITH SUCH A MAGNETIC TAPE 失效
公开(公告)号：EP0737353B1
公开(公告)日：2000-05-17
申请号：EP95932874.1
申请日：1995-10-12
申请人： Koninklijke Philips Electronics N.V.
发明人： LESHEM, Pawel
IPC分类号： G11B5/008 , H04N5/7826
CPC分类号： G11B5/78 , G11B5/0086 , G11B5/00878 , G11B15/087 , G11B15/1875 , G11B15/4675 , G11B15/4676 , G11B27/107 , G11B27/32 , G11B27/324 , G11B2220/90 , H04N5/78263 , H04N9/7921 , H04N9/797 , H04N9/802 , H04N9/8063
摘要： A magnetic tape (2) and an apparatus (1) for cooperation with this magnetic tape (2) are configured in such a manner that video signals and audio signals can be stored in an inclined-track zone (67) and that a control signal (D-CTL signal) of a given frequency f1 can be stored in a first longitudinal track (24), which is in fact intended for recording analog audio signals, and that an additional control signal (X-CTL signal) of another frequency f2 can be stored in a second longitudinal track (26) on the magnetic tape (2), the additional control signal (X-CTL signal) being reproduced from the second longitudinal track (26) when such a magnetic tape (2) is loaded into a video recorder (1) in accordance with the VHS standard or into a video recorder (1) in accordance with the invention, which is also capable of recording and reproducing analog video signals in accordance with the VHS standard in inclined tracks, which reproduced additional control signal is applied to a speed control device for a capstan, which results in a tape speed deviating from normal operation and precludes an undesirable signal reproduction.

7. 发明公开

EP0906621A2 RECORDING OF TRICK PLAY SIGNALS ON A RECORD CARRIER 失效
标题翻译：录制特技播放信号记录载体
公开(公告)号：EP0906621A2
公开(公告)日：1999-04-07
申请号：EP98900326.0
申请日：1998-01-22
申请人： Koninklijke Philips Electronics N.V.
发明人： RIJCKAERT, Albert, Maria, Arnold
IPC分类号： G11B5 , G11B15 , G11B20 , G11B27 , H04N5 , H04N9
CPC分类号： G11B5/09 , G11B5/0086 , G11B5/584 , G11B15/125 , G11B15/1875 , G11B15/4676 , G11B15/4677 , G11B20/1208 , G11B27/005 , G11B27/3027 , G11B27/3063 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N9/8042 , H04N9/8227
摘要： A format for the recording of trick play signals is proposed in which trick play segments comprising sync blocks of information of a trick play signal are recorded in groups of p successive tracks. At least first and second trick play signals are recorded on the record carrier. The first trick play signal is meant for reproduction in a reproduction apparatus at a reproduction speed n1 times the recording speed with which the trick play signal are recorded on the record carrier. The second trick play signal is meant for reproduction in the said reproduction apparatus at a reproduction speed n2 times the recording speed. Both trick play signals are recorded such that upon reproduction at said speed n1 times the recording speed m1 sync blocks of information of the first trick play signal and m1 sync blocks of the second trick play signal are read from the record carrier during one revolution of the head drum in the reproduction apparatus.

8. 发明授权

EP0554078B1 Digital signal recording and reproducing apparatus and digital signal recording and reproducing method 失效
标题翻译：设备和记录方法和再现的数字信号
公开(公告)号：EP0554078B1
公开(公告)日：1999-03-31
申请号：EP93300604.1
申请日：1993-01-28
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA
发明人： Inoue, Tohru, c/o Mitsubishi Denki K. K. , Onishi, Ken, c/o Mitsubishi Denki K. K. , Kawabata, Masaru, c/o Mitsubishi Denki K. K.
IPC分类号： H04N5/91 , G11B20/12
CPC分类号： G11B27/3027 , G11B5/0086 , G11B5/09 , G11B15/1875 , G11B15/4676 , G11B20/10527 , G11B20/1208 , G11B20/1803 , G11B20/1809 , G11B20/1866 , G11B27/032 , G11B27/036 , G11B2020/10537 , G11B2020/10592 , G11B2220/216 , G11B2220/90 , H04N5/78266 , H04N9/804 , H04N9/8066 , H04N9/888
摘要： A digital VTR for recording the data of one-frame of collectively error-correcting-encoded video and audio signals in N pieces of tracks during normal recording and for recording the data of collectively, error-correcting-encoded video and audio signals in (N-1) pieces of tracks and the data of error-correction-encoded post-scoring audio signal in the remaining one track exclusively for post-scoring during post-scoring audio recording.

9. 发明公开

EP0625780A3 Signal reproducing apparatus 失效
标题翻译：信号再现装置
公开(公告)号：EP0625780A3
公开(公告)日：1995-02-22
申请号：EP94201367.3
申请日：1994-05-16
申请人： VICTOR COMPANY OF JAPAN, LTD.
发明人： Hiroshi, Ohgaki , Yasutaka, Sasajima
IPC分类号： G11B21/10 , G11B15/467 , G11B19/28
CPC分类号： G11B15/4672 , G11B5/584 , G11B15/14 , G11B15/4676 , G11B15/4735 , G11B21/103 , H04N5/78266 , H04N9/7973
摘要： A signal reproducing apparatus realizes an auto- tracking in reproducing a plurality of recorded signals simultaneously with a simple construction. The signal reproducing apparatus is featured by comprising a plurality of reproducing circuits (WP1,WP2,WQ1,WQ2,10-13) for reproducing a plurality of recorded signals from a plurality of tracks TQ1, TQ2, TP1, TP2, TA1 and TA2 formed on a recording medium, a plurality of amplitude level detection circuits (19,20,21,22) for detecting amplitudes of at least two of output signals of the reproducing circuits and an operation circuit (24) for generating a tracking control signal (24a) from a signal obtained by processing the amplitude level detection signals (20a,22a) from the amplitude level detection circuits in a predetermined manner.
摘要翻译：信号再现设备以简单的结构同时实现在再现多个记录信号时的自动跟踪。信号再现设备的特征在于包括用于从多个轨道TQ1，TQ2，TP1，TP2，TA1和TA2再现多个记录信号的多个再现电路（WP1，WP2，WQ1，WQ2,10-13）（19,20,21,22），用于检测再现电路的输出信号中的至少两个的输出信号的幅度;以及运算电路（24），用于产生跟踪控制信号（24a））从通过以预定方式处理来自幅度电平检测电路的幅度电平检测信号（20a，22a）获得的信号中获得。

10. 发明授权

EP0319218B1 Data reproducing apparatus 失效
标题翻译：数据再现装置。
公开(公告)号：EP0319218B1
公开(公告)日：1994-09-28
申请号：EP88311227.8
申请日：1988-11-25
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Ejima, Naoki
IPC分类号： G11B20/14 , G11B20/10 , G11B20/12
CPC分类号： G11B15/1875 , G11B15/4676 , G11B20/10 , G11B20/1403 , G11B27/005 , G11B2020/1087 , G11B2220/2545 , G11B2220/90 , G11B2220/913

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