公开(公告)号：US4843490A

公开(公告)日：1989-06-27

申请号：US170826

申请日：1988-03-21

申请人： Tamotsu Haragushi

发明人： Tamotsu Haragushi

IPC分类号： G11B5/09 ,  G11B15/08 ,  G11B15/087 ,  G11B27/24

CPC分类号： G11B27/24 ,  G11B15/08

摘要： A compatible data transfer apparatus for use with first and second tape assemblies such as multitrack digital magnetic tape cassettes on which data are recorded with different formats or with different densities. Typically, in order to discriminate between the two types of tape assemblies, a beginning-of-tape (BOT) sensor is utilized which optically detects a BOT hole usually formed in this kind of tape cassette. The two types of tape assemblies have their BOT holes formed at different distances from optically detectable starting position of the tape such as the boundary between the transport leader tape section and the opaque data storage section. The BOT sensor may be connected to a programmed microcomputer or to a devoted identification circuit whereby the loaded tape assembly is identified as the first or second type depending upon the distance of the BOT hole from the starting tape position. A tape select switch is automatically actuated for connecting the transducer to a reproduction circuit to either of two reproduction circuits provided for the two types of tape assemblies.

摘要翻译： 一种用于第一和第二磁带组件的兼容数据传输装置，例如以不同格式或不同密度记录数据的多轨数字磁带盒。 通常，为了区分两种类型的带组件，使用开始的（BOT）传感器来光学地检测通常形成在这种盒式磁带中的BOT孔。 这两种类型的胶带组件的BOT孔形成在与胶带的可光学检测的起始位置不同的距离处，例如传送引带部分与不透明数据存储部分之间的边界。 BOT传感器可以连接到编程的微型计算机或专用的识别电路，由此根据BOT孔与起始磁带位置的距离，装载的磁带组件被识别为第一或第二类型。 磁带选择开关被自动启动，用于将传感器连接到再现电路到为两种类型的磁带组件提供的两个再现电路中的任一个。

公开(公告)号：US4811130A

公开(公告)日：1989-03-07

申请号：US47539

申请日：1987-05-04

申请人： Nobutoshi Takayama

发明人： Nobutoshi Takayama

IPC分类号： G11B15/467 ,  G11B15/087

CPC分类号： G11B15/4678

摘要： An apparatus for reproducing information signals recorded with a plurality of pilot signals having different frequencies on a tape-like recording medium, in which a tracking error signal is formed by using the pilot signals reproduced by the head for reproducing the information signals, and pulse signals generated in correspondence to the moving action of the recording medium during a period of variation in level of the tracking error signals are counted to discriminate whether the recording speed of the information signals and the moving speed of the recording medium are coincident or not.

摘要翻译： 一种用于在带状记录介质上再现记录有具有不同频率的多个导频信号的信息信号的装置，其中通过使用用于再现信息信号的磁头再现的导频信号形成跟踪误差信号，以及脉冲信号 对跟踪误差信号的电平变化期间的记录介质的移动动作产生的信号进行计数，以判别信息信号的记录速度和记录介质的移动速度是否一致。

公开(公告)号：US4811129A

公开(公告)日：1989-03-07

申请号：US936505

申请日：1986-12-01

申请人： Kanji Kubo

发明人： Kanji Kubo

IPC分类号： G11B15/467 ,  G11B15/087 ,  G11B15/44 ,  G11B33/10 ,  G11B5/52

CPC分类号： G11B33/10 ,  G11B15/087 ,  G11B15/442

摘要： In a helical scanning type VTR utilizing a tracking error signal method using four kinds of pilot signals, a tape speed at recording is detected by comparing a threshold level value with the level difference between the outputs before and after the change in the two kinds reference signals which are supplied to a multiplying circuit within one magnetic head scanning period, the multiplying circuit obtaining sum and difference frequency signals between a reproduced pilot signal and the reference signal.

摘要翻译： 在使用四种导频信号的跟踪误差信号法的螺旋扫描型VTR中，通过将阈值电平值与两种基准信号的变化前后的输出之间的电平差进行比较来检测记录带速度 其被提供给一个磁头扫描周期内的乘法电路，乘法电路获得再生的导频信号和参考信号之间的和频和差频信号。

公开(公告)号：US4757394A

公开(公告)日：1988-07-12

申请号：US792271

申请日：1985-10-28

申请人： Kaneyuki Okamoto ,  Hideo Nishijima ,  Isao Fukushima

发明人： Kaneyuki Okamoto ,  Hideo Nishijima ,  Isao Fukushima

IPC分类号： H04N5/7826 ,  G11B5/008 ,  G11B5/584 ,  G11B15/087 ,  G11B15/467 ,  H04N5/782

CPC分类号： G11B5/00878 ,  G11B15/087 ,  G11B15/4675

摘要： An auto-tracking apparatus of a magnetic recording/reproducing apparatus has a circuit for discriminating whether the audio signals recorded on a magnetic tape to be reproduced were recorded by audio rotary heads or a fixed head, and a circuit for selecting outputs of the audio rotary heads in the case of the Hi-Fi recorded magnetic tape by the audio rotary heads and outputs of the video rotary heads in the case where it is determined that the magnetic tape is the normal recorded tape by the fixed head on the basis of the result of the discrimination, and performs the auto-tracking on the basis of the selected outputs. With this arrangement, the auto-tracking can be carried out irrespective of whether the magnetic tape is the normal recorded tape by the conventional fixed head or the Hi-Fi recorded tape by the rotary heads.

摘要翻译： 磁记录/再现装置的自动跟踪装置具有用于鉴别记录在要再现的磁带上的音频信号是由音频旋转头还是固定头记录的电路，以及用于选择音频旋转的输出的电路 在通过固定头根据结果确定磁带是正常记录磁带的情况下，通过音频旋转头的Hi-Fi记录磁带和视频旋转磁头的输出的磁头 并且基于所选择的输出执行自动跟踪。 利用这种布置，可以执行自动跟踪，而不管磁带是通过常规固定头还是通过旋转头的Hi-Fi记录磁带的正常记录磁带。

公开(公告)号：US4754346A

公开(公告)日：1988-06-28

申请号：US933447

申请日：1986-11-21

申请人： Toshio Takagi ,  Tomomi Watanabe ,  Yuji Fukata ,  Hiroyuki Komata

发明人： Toshio Takagi ,  Tomomi Watanabe ,  Yuji Fukata ,  Hiroyuki Komata

IPC分类号： G11B15/00 ,  G11B15/02 ,  G11B15/087 ,  G11B27/17 ,  G11B27/22 ,  G11B15/18

CPC分类号： G11B15/02 ,  G11B15/005 ,  G11B15/087 ,  G11B27/22

摘要： A music search device for a tape containing a number of pieces of music. If the search begins within a fixed period since the beginning of the currently played piece, the tape jumps back to the beginning of the preceding piece. If the search begins after the fixed period, the tape jumps back to the beginning of the current piece.

摘要翻译： 一种用于包含许多音乐片段的磁带的音乐搜索装置。 如果搜索从当前播放的片段开始的固定时间开始，则磁带将跳回到前一片段的开头。 如果搜索在固定时间段之后开始，磁带将跳回到当前片段的开头。

公开(公告)号：US4730289A

公开(公告)日：1988-03-08

申请号：US818684

申请日：1986-01-14

申请人： Atsushi Saitoh ,  Toshimitsu Kaku

发明人： Atsushi Saitoh ,  Toshimitsu Kaku

IPC分类号： G11B11/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/26 ,  G11B11/105 ,  G11B13/04 ,  G11B27/10 ,  G11B27/30 ,  G11B11/00 ,  G11B15/087

CPC分类号： G11B27/30 ,  G11B11/10597 ,  G11B13/04 ,  G11B27/105 ,  G11B2020/10888 ,  G11B2220/2525

摘要： A magnetic-optical disc memory system wherein header information items which include sector marks indicating initial positions of sectors, track Nos., and sector Nos. are previously provided on a magnetic-optical disc in the form of embossed pits and wherein data information items are written in the form of magnetic signals in data areas other than the header areas. Photodetectors detect the header information and the data. The operation of switching outputs from the photodetectors is controlled in accordance with a timing based on the point of time at which a sector mark signal has been detected from the output of the photodetector which detects the header area.

摘要翻译： 一种磁光盘存储器系统，其中包括指示扇区的初始位置，轨道编号和扇区编号的扇区标记的标题信息项预先以浮雕凹坑的形式提供在磁光盘上，并且其中数据信息项是 在头部区域之外的数据区域中以磁信号的形式写入。 光电检测器检测标题信息和数据。 根据检测到标题区域的光检测器的输出检测到的扇区标记信号的时间点的时间点，控制来自光检测器的输出的切换操作。

公开(公告)号：US4722013A

公开(公告)日：1988-01-26

申请号：US848883

申请日：1986-04-07

申请人： Hideki Hayashi

发明人： Hideki Hayashi

IPC分类号： G11B15/087 ,  G11B15/10 ,  G11B15/18 ,  G11B15/44 ,  G11B5/54

CPC分类号： G11B15/1883 ,  G11B15/087 ,  G11B15/442

摘要： A lock mechanism for locking a head plate and fast-forwarding and rewinding levers of a tape player comprises step-shaped engage portions formed along side margins of the fast-forwarding and rewinding levers near their one end, a lever lock member pivotally mounted near these ends of the levers for releasable locking engagement with the step-shaped engage portions, and a compression portion formed along a margin of the head plate which unlocks the locking engagement between the lever lock member and step-shaped engage portion when the head plate withdraws concurrently with deenergization of a plunger upon detection of a non-signal portion between pieces of music on a tape.

摘要翻译： 用于锁定磁带播放器的头板和快进和倒带杆的锁定机构包括沿着其一端附近的快进和倒带杆的侧边缘形成的阶梯形接合部分，靠近这些位置枢转地安装的杠杆锁定构件 用于与台阶形接合部分可释放地锁定接合的杆的端部，以及沿着头板的边缘形成的压缩部分，当头板同时撤回时，解锁锁定构件和阶梯形接合部分之间的锁定接合 当检测到磁带上的音乐片段之间的非信号部分时，柱塞断电。

公开(公告)号：US4714970A

公开(公告)日：1987-12-22

申请号：US855172

申请日：1986-04-22

申请人： Hiroo Edakubo

发明人： Hiroo Edakubo

IPC分类号： G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B21/10 ,  G11B15/44 ,  H04N5/782

CPC分类号： G11B15/1875 ,  G11B15/4678 ,  G11B21/106

摘要： An apparatus for reproducing signals recorded on a recording medium with a plurality of rotary heads is arranged to discriminate a medium moving speed employed for recording by comparing signals simultaneously reproduced by these rotary heads.

摘要翻译： 用于再现记录在具有多个旋转头的记录介质上的信号的装置被设置为通过比较由这些旋转头同时再现的信号来区分用于记录的介质移动速度。

公开(公告)号：US4692818A

公开(公告)日：1987-09-08

申请号：US575890

申请日：1984-02-01

申请人： Kenji Fujibayashi

发明人： Kenji Fujibayashi

IPC分类号： G11B20/02 ,  G11B20/24 ,  G11B27/30 ,  G11B15/087

CPC分类号： G11B27/3018 ,  G11B20/02 ,  G11B20/24

摘要： In a cue recording system for a tape recorder, an audio signal is recorded by a first recording section on a first track of a tape. In a second recording section, a cue signal is superposed on the audio signal. The composite signal formed of the audio and cue signals is then recorded on the second track of the tape. In the playback mode, the audio signal and the cue signal recorded on the second track are separated by a filter. When the separated second-track audio signal is mixed with a first-track reproduced output, the resultant audio signal has substantially the same low-frequency response characteristic as a stereo head system, and a same S/N ratio as the monaural head system. An insufficient low-frequency response of the second track is compensated by the flat frequency response of the first track. Degradation of the S/N ratio of the signal of the first track can be improved by the mid or higher frequency component of the audio signal of the second track.

摘要翻译： 在磁带记录器的提示记录系统中，音频信号由磁带的第一磁道上的第一记录部分记录。 在第二记录部分中，提示信号叠加在音频信号上。 然后，由音频和提示信号形成的复合信号被记录在磁带的第二磁道上。 在回放模式中，记录在第二轨道上的音频信号和提示信号由滤波器分离。 当分离的第二轨道音频信号与第一轨道再现输出混合时，所得到的音频信号具有与立体声头系统基本相同的低频响应特性，并且具有与单声道头系统相同的S / N比。 通过第一轨道的平坦频率响应来补偿第二轨道的不足的低频响应。 可以通过第二磁道的音频信号的中间或更高频率分量来提高第一磁道的信号的信噪比的降低。

公开(公告)号：US4691251A

公开(公告)日：1987-09-01

申请号：US666421

申请日：1984-10-30

申请人： Katsuhiro Ookawa ,  Toshifumi Fujii ,  Yoshihiro Nishida

发明人： Katsuhiro Ookawa ,  Toshifumi Fujii ,  Yoshihiro Nishida

IPC分类号： G11B15/00 ,  G11B15/087 ,  G11B15/467 ,  G11B27/024 ,  G11B27/32 ,  H04N5/7826 ,  G11B27/08 ,  H04N5/782

CPC分类号： G11B15/4678 ,  G11B15/087 ,  G11B27/024 ,  G11B27/324

摘要： A magnetic recording and reproducing apparatus using a pilot signal control system is adapted such that a cue signal (51) is recorded in a cue track (50) provided besides a video signal track (52) when a magnetic tape (7) is temporarily stopped during the recording operation and is moved in the backward direction by a predetermined amount, and when the temporary stop is cancelled and the magnetic tape is moved in the forward direction, the cue signal (51) is reproduced and the recording operation is restarted responsive to the reproduced cue signal. Preferably, after cancellation of the temporary stop until restart of the recording operation, control is made such that coincidence of the frequency and phase of the reproduced pilot signal and those of a pilot signal to be recorded is established.

摘要翻译： 使用导频信号控制系统的磁记录和再现装置适于使得当磁带（7）暂时停止时，提示信号（51）被记录在除视频信号轨道（52）之外提供的提示轨道（50）中 在记录操作期间并且沿向后方向移动预定量，并且当临时停止被取消并且磁带沿正向移动时，再现提示信号（51），并且响应于 再现的提示信号。 优选地，在重新开始记录操作之后取消临时停止之后，进行控制，使再现的导频信号的频率和相位与要记录的导频信号的频率和相位一致。