公开(公告)号：US4680652A

公开(公告)日：1987-07-14

申请号：US552437

申请日：1983-11-16

申请人： Takeshi Ito

发明人： Takeshi Ito

IPC分类号： G11B15/087 ,  G11B15/02 ,  G11B27/00 ,  G11B27/22 ,  G11B15/16 ,  G11B15/52 ,  G11B19/10

CPC分类号： G11B15/02 ,  G11B27/002 ,  G11B27/22

摘要： A detector for detecting a space between blocks of data recorded on a recording medium, comprising a recording medium with a given speed, which provides a reproduction signal corresponding to an information recorded on the recording medium and issues a transport operation indicating signal; a discrimination means for discriminating the transport operation indicating signal, which provides a filter characteristic changing signal in accordance with the transport operation indicating signal; and a variable filter means for filtering the reproduction signal and providing a timing signal, of which filtering characteristic is changed in accordance with the filter characteristic changing signal. An operation mode of the recording medium transport means is changed by a transport control signal corresponding to the timing signal.

摘要翻译： 一种用于检测记录在记录介质上的数据块之间的空间的检测器，包括具有给定速度的记录介质，其提供与记录在记录介质上的信息相对应的再现信号并发出传送操作指示信号; 鉴别装置，用于鉴别根据传送操作指示信号提供滤波特性改变信号的传输操作指示信号; 以及可变滤波器装置，用于对再现信号进行滤波并提供根据滤波特性改变信号改变滤波特性的定时信号。 通过与定时信号相对应的传输控制信号来改变记录介质传送装置的操作模式。

公开(公告)号：US4649439A

公开(公告)日：1987-03-10

申请号：US613510

申请日：1984-05-23

申请人： Hidenori Tanaka

发明人： Hidenori Tanaka

IPC分类号： G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  H04N5/783

CPC分类号： H04N5/783 ,  G11B15/1875

摘要： A system for reproducing a video signal in a still picture reproduction comprises a circuit for generating a still picture reproduction mode signal during a still picture reproduction mode, a circuit for counting a predetermined number of pulses in the rotation detection pulse signal, after the still picture reproduction mode signal is generated, from a point in time when a reproduced control pulse signal or a signal in phase with the reproduced control pulse signal is first obtained as a reference signal, and for generating a rotation stopping signal as an output signal when the predetermined number of pulses are counted, a circuit responsive to the still picture reproduction mode signal, for reducing a voltage which is applied to a capstan motor, and a circuit for stopping the rotation of the capstan motor responsive to the rotation stopping signal which is obtained after the voltage applied to the capstan motor has been reduced and a rotational speed of the capstan motor has decreased. The predetermined number is selected to a value so that a magnetic tape stops moving at a position where a noise in a reproduced picture which is obtained from a video signal reproduced by rotary video heads is a minimum.

摘要翻译： 用于在静态图像再现中再现视频信号的系统包括用于在静态图像再现模式期间产生静态图像再现模式信号的电路，用于在静止图像之后对旋转检测脉冲信号中的预定数量的脉冲进行计数的电路 从再现的控制脉冲信号或与再现的控制脉冲信号同相的信号首先获得作为参考信号的时间点生成再现模式信号，并且当预定的时间产生作为输出信号的旋转停止信号 对脉冲数进行计数，响应于静止图像再现模式信号的电路，用于减小施加到主导轴电动机的电压，以及用于停止主动轮电动机的旋转的电路，该电路响应于后续获得的转动停止信号 施加到主导轴马达的电压已经降低，并且主导轴马达的转速减小 ed。 将预定数量选择为使得磁带在由旋转视频头再现的视频信号获得的再现图像中的噪声最小的位置处停止移动。

公开(公告)号：US4636899A

公开(公告)日：1987-01-13

申请号：US506575

申请日：1983-06-22

申请人： Fumiaki Yamada

发明人： Fumiaki Yamada

IPC分类号： G11B5/48 ,  G11B15/087 ,  G11B5/20

CPC分类号： G11B15/087 ,  G11B5/00821 ,  G11B5/488

摘要： Method and magnetic head assembly for recording and reproducing control signals in which the control signals are recorded in a control track between information tracks of a magnetic recording medium and are reproduced therefrom, said control signals being recorded with the magnetizing direction perpendicular to that of the information signals recorded in the information tracks in the same plane. Components of the control signals parallel to the magnetization direction of the information signals are detected by the magnetic head assembly in order to reproduce the control signals.

摘要翻译： 用于记录和再现控制信号的方法和磁头组件，其中控制信号被记录在磁记录介质的信息轨道之间的控制轨道中并从其再现，所述控制信号以垂直于信息的磁化方向记录 记录在同一平面上的信息轨道中的信号。 通过磁头组件检测与信息信号的磁化方向平行的控制信号的分量，以再现控制信号。

公开(公告)号：US4633341A

公开(公告)日：1986-12-30

申请号：US619858

申请日：1984-06-12

申请人： Toru Sekiguchi

发明人： Toru Sekiguchi

IPC分类号： H04N5/783 ,  G11B15/087 ,  G11B15/46 ,  G11B15/52 ,  G11B27/10 ,  G11B27/13 ,  G11B27/32

CPC分类号： G11B15/52 ,  G11B15/087 ,  G11B27/107 ,  G11B27/13 ,  G11B27/32

摘要： A tape synchronizing apparatus for synchronizing tape addresses corresponding to tape locations of a tape which is being played back and reference addresses produced in the apparatus. The apparatus includes a capstan for rotating the tape at a controllable speed and a circuit for producing the tape addresses. The tape address generator circuit includes a circuit for detecting the direction of movement of the tape being played back, a shaping circuit for detecting a control signal from the tape which indicates each successive address and an up-down counter for producing the actual tape addresses. The reference addresses are produced in a reference address counter. The reference addresses are produced and updated at a rate corresponding to the frequency of a frequency reference. The clock rate of the frequency reference is adjustable by means of a frequency dividing circuit. The reference addresses and the tape addresses are compared and an acceleration or deceleration signal to the capstan driving means of the tape is generated for synchronizing the tape addresses with the reference addresses.

摘要翻译： 一种磁带同步装置，用于同步与正被重放的磁带的磁带位置对应的磁带地址和在该装置中产生的参考地址。 该装置包括用于以可控速度旋转磁带的主导轴和用于产生磁带地址的电路。 磁带地址发生器电路包括用于检测正被重放的磁带的移动方向的电路，用于检测来自指示每个连续地址的磁带的控制信号的整形电路和用于产生实际磁带地址的升降计数器。 参考地址在参考地址计数器中产生。 以与频率参考的频率相对应的速率产生和更新参考地址。 频率参考的时钟频率可通过分频电路进行调节。 比较参考地址和磁带地址，并且产生一个到磁带驱动装置的加速或减速信号，以使磁带地址与参考地址同步。

公开(公告)号：US4630138A

公开(公告)日：1986-12-16

申请号：US624335

申请日：1984-06-25

申请人： Mikio Utsugi ,  Masahiro Fukuda

发明人： Mikio Utsugi ,  Masahiro Fukuda

IPC分类号： H04N5/7826 ,  G11B5/00 ,  G11B5/008 ,  G11B5/012 ,  G11B15/087 ,  G11B15/18 ,  G11B19/20 ,  G11B27/02 ,  G11B27/022 ,  G11B27/026 ,  G11B27/029 ,  G11B27/036 ,  G11B27/32 ,  H04N5/765 ,  H04N5/78 ,  H04N5/781

CPC分类号： G11B19/20 ,  G11B15/1808 ,  G11B27/022 ,  G11B27/026 ,  G11B27/029 ,  G11B27/32 ,  G11B5/00 ,  G11B5/0086 ,  G11B5/012 ,  G11B2220/20 ,  G11B2220/90

摘要： Apparatus for controlling recording of a scene for use in an image recording system adapted for recording images on a magnetic recording medium by consecutive shooting is described. The apparatus includes a magnetic recording device for recording images on the recording medium, and a control unit for sequentially changing the relative position of the magnetic recording device with respect to the recording medium. The controlling apparatus controls the imaging or photographing operation performed by the recording apparatus on a scene by scene basis. The controlling apparatus has a storing unit for storing information associated with a point on the recording medium corresponding to the start of a recorded scene during consecutive shooting. The control unit includes a restoring circuit responsive to a signal that instructs reshooting to restore the relative position of the magnetic recording device with respect to the recording medium to the point on the recording medium corresponding to the start of the scene in accordance with the information stored by the storing unit.

摘要翻译： 描述了用于控制用于适于通过连续拍摄在磁记录介质上记录图像的图像记录系统中使用的场景的记录装置。 该装置包括用于在记录介质上记录图像的磁记录装置，以及用于依次改变磁记录装置相对于记录介质的相对位置的控制单元。 控制装置以场景为基础控制由记录装置执行的成像或拍摄操作。 控制装置具有存储单元，用于在连续拍摄期间存储与记录媒体上的开始相对应的与记录媒体上的点对应的信息。 控制单元包括响应于指示重新开始的信号的恢复电路，以根据存储的信息将磁记录装置相对于记录介质的相对位置恢复到对应于场景开始的记录介质上的点 通过存储单元。

公开(公告)号：US4570192A

公开(公告)日：1986-02-11

申请号：US445466

申请日：1982-11-30

申请人： Takeshi Hori

发明人： Takeshi Hori

IPC分类号： G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B27/024 ,  G11B27/32 ,  G11B27/02 ,  H04N5/78

CPC分类号： G11B15/1875 ,  G11B15/087 ,  G11B27/024 ,  G11B27/324 ,  G11B15/4673 ,  G11B2220/90

摘要： A control circuit for video tape recording and/or playback apparatus is coupled to a stationary control head for selectively changing the duty ratio of the control signal that accompanies the recorded video signal and is the same signal that is used to control the servo operation of head drum and capstan motors of the apparatus. Normally, the duty ratio of the control signal is 50%, but the control circuit permits an operator to selectively alter the duty ratio, for example, to 30%, to indicate that the accompanying segment of the recorded video signal is to be edited out, that is, skipped over when the tape is played back. A duty-ratio detector coupled to the control head discriminates the duty ratio of the reproduced control signal, and a system controller automatically changes the mode of the apparatus to advance at fast-forward past those portions of the video signal accompanied by a 30%-duty-ratio control signal.

摘要翻译： 用于录像带记录和/或播放装置的控制电路耦合到固定控制头，用于选择性地改变伴随记录视频信号的控制信号的占空比，并且是用于控制头部伺服操作的相同信号 滚筒和主导轴马达。 通常，控制信号的占空比为50％，但是控制电路允许操作者选择性地将占空比改变为30％，以指示记录的视频信号的伴随段被编辑出 ，即在播放磁带时跳过。 耦合到控制头的占空比检测器识别再现的控制信号的占空比，并且系统控制器自动地改变装置的模式以快速前进超过视频信号的那些部分，伴随着30％ - 占空比控制信号。

公开(公告)号：US4562488A

公开(公告)日：1985-12-31

申请号：US509176

申请日：1983-06-28

申请人： Reikichi Koyama ,  Kikuo Usugi

发明人： Reikichi Koyama ,  Kikuo Usugi

IPC分类号： G11B15/087 ,  G10L21/00 ,  G11B15/02 ,  G11B20/02 ,  G11B20/10 ,  G11B27/00 ,  G11B5/00

CPC分类号： G11B27/005 ,  G10L21/00 ,  G11B20/02 ,  G11B20/10527 ,  G11B2220/90

摘要： A pitch modification system for signals received from a tape player converts analog signals received from the player to binary digital form and stores them in sequential addresses in a memory unit at a rate set by a first clock. Output signals are produced by sequentially reading the stored information at a different rate as set by the frequency of a second clock, the ratio between the two clock frequencies causing the desired change in pitch with respect to the original signal. The output signal is converted from digital binary representation to an analog signal by a D/A converter. A detecting means is employed to detect no-signal conditions and generates an automatic reset signal which equalizes the two clock frequencies to restore the system to a zero-shift condition attendant to the appearance of silent passages on the tape.

摘要翻译： 用于从磁带播放机接收的信号的音调修改系统将从播放器接收的模拟信号转换成二进制数字形式，并以第一时钟设定的速率将它们存储在存储器单元中的顺序地址中。 通过以由第二时钟的频率设定的不同速率依次读取所存储的信息来产生输出信号，两个时钟频率之间的比率相对于原始信号产生期望的音调变化。 输出信号由D / A转换器从数字二进制表示转换为模拟信号。 采用检测装置来检测无信号条件，并产生一个自动复位信号，该自动复位信号使两个时钟频率相等，以将系统恢复到伴随着磁带上无声通道出现的零位移状态。

公开(公告)号：US4511939A

公开(公告)日：1985-04-16

申请号：US398214

申请日：1982-07-14

申请人： Isao Shinohara

发明人： Isao Shinohara

IPC分类号： G11B15/087 ,  G11B15/44 ,  G11B15/00

CPC分类号： G11B15/087 ,  G11B15/442

摘要： The disclosure is directed to an improved cassette tape recorder which is arranged to have a small loss during the change-over in the running or travelling directions of a magnetic tape between a first direction, i.e. a forward direction, and a second direction, i.e. a reverse direction, and wherein only a small functioning stroke is required for actuating the magnetic heads.

摘要翻译： 本公开涉及一种改进的盒式磁带录音机，其被布置为在第一方向（即，向前方向）和第二方向（即，第一方向）之间在磁带的行进或行进方向上的转换期间具有小的损耗 反向，并且其中仅需要小功能的行程来致动磁头。

公开(公告)号：US4504875A

公开(公告)日：1985-03-12

申请号：US471216

申请日：1983-03-01

申请人： Kunihiko Kato ,  Akihiko Murahashi

发明人： Kunihiko Kato ,  Akihiko Murahashi

IPC分类号： H04B1/20 ,  G11B15/02 ,  G11B15/087 ,  G11B15/10 ,  G11B25/06 ,  G11B27/22 ,  G11B31/00 ,  G11B33/06 ,  G11B33/12

CPC分类号： G11B15/103 ,  G11B25/063 ,  G11B27/22 ,  G11B31/00 ,  G11B31/003 ,  G11B33/122

摘要： A cassette tape recorder (1) of pocket size, which is detachably coupled to a radio receiver (2) is given music searching function. The cassette tape recorder (1) is normally powered by small capacity cells (B1) when used by itself, and is powered by a large capacity power source (B2) included in the radio (2). A reproducing signal derived from a reproduce head (9) is fed to a solenoid control circuit (14) built in the radio (2) to detect a no-signal portion between two consecutive music pieces. When such a no-signal portion is detected during music search with fast playback, a solenoid driving signal is fed to a solenoid (12) built in the tape recorder (1) to terminate fast playback and put the tape recorder (1) in a normal playback mode. A switch (S1) arranged to be automatically switched when the tape recorder (1) engages the radio (2) is provided to automatically select the small or large capacity power source (B1 or B2).

摘要翻译： 具有可拆卸地耦合到无线电接收器（2）的口袋尺寸的盒式磁带录音机（1）被给予音乐搜索功能。 盒式磁带录像机（1）通常由小容量电池（B1）供电，并且由包括在无线电（2）中的大容量电源（B2）供电。 从再现头（9）导出的再现信号被馈送到内置在无线电（2）中的螺线管控制电路（14），以检测两个连续音乐片段之间的无信号部分。 当在快速重放的音乐搜索期间检测到这样的无信号部分时，将螺线管驱动信号馈送到内置在磁带录像机（1）中的螺线管（12）以终止快速重放，并将磁带录音机（1）放入 普通播放模式。 提供当磁带录像机（1）接合无线电（2）时被自动切换的开关（S1），以自动选择小容量或大容量电源（B1或B2）。

公开(公告)号：US4496998A

公开(公告)日：1985-01-29

申请号：US299180

申请日：1981-09-03

申请人： Hiroyuki Takimoto

发明人： Hiroyuki Takimoto

IPC分类号： H04N5/7826 ,  G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B27/024 ,  G11B27/32 ,  H04N5/782

CPC分类号： G11B15/1875 ,  G11B27/024 ,  G11B27/324

摘要： An image recording and reproducing apparatus of the present invention has change over means between a running state and a stopped state of a recording medium, operation detecting means to detect an operation state of the change over means by a control signal synchronized either with a reference signal or a vertical synchronizing signal of an image signal, and delay means to have an output from the operation detecting means delayed for a prescribed length of time after a moment of the change over for a start of running of the recording medium or a stopping of the same thus having a running or stopping signal output therefrom. The recording of the control signal on the recording medium is stopped corresponding to the output of the operation detecting means and the output of the delay means. Further when a change over is made from a stopping mode of the recording medium to a running mode thereof after a change over is once made from the running mode to the stopping mode thereof, a recording interval of control signals corresponding to joints in a recording locus on the recording medium is made to be multiples of an integer being 2 or larger of a recording interval of control signals when the medium makes an ordinary run.

摘要翻译： 本发明的图像记录和再现装置已经改变了记录介质的运行状态和停止状态之间的装置，操作检测装置通过与参考信号同步的控制信号来检测改变装置的操作状态 或图像信号的垂直同步信号，以及具有来自操作检测装置的输出的延迟装置，在开始记录介质的运行之后，在改变之后延迟规定的时间长度，或停止 因此具有从其输出的运行或停止信号。 控制信号在记录介质上的记录对应于操作检测装置的输出和延迟装置的输出而停止。 此外，当从行驶模式到其停止模式一次进行了从转换之后的记录介质的停止模式到其运行模式的转换时，与记录轨迹中的关节对应的控制信号的记录间隔 当介质进行普通运行时，在记录介质上作为整数的倍数为2或更大的控制信号的记录间隔。