公开(公告)号：US4924329A

公开(公告)日：1990-05-08

申请号：US259310

申请日：1988-10-18

申请人： Kenmei Masuda ,  Kenji Ogiro ,  Yoshinori Okada ,  Akihiro Nakajima ,  Mashanori Kochi ,  Kazutoshi Konno

发明人： Kenmei Masuda ,  Kenji Ogiro ,  Yoshinori Okada ,  Akihiro Nakajima ,  Mashanori Kochi ,  Kazutoshi Konno

IPC分类号： G11B27/36 ,  G11B5/008 ,  G11B5/02 ,  G11B5/53 ,  G11B15/14

CPC分类号： G11B5/0086 ,  G11B15/14 ,  G11B5/02 ,  G11B5/53 ,  G11B5/531

摘要： The present invention relates to a magnetic recording and reproducing device wherein reproduction monitoring can be made directly after recording, and more particularly to a construction of a rotary drum for the same. The magnetic recording and reproducing device includes a single recording channel for n recording magnetic heads, and n reproducing channels for n reproducing magnetic heads. The recording channel is provided either on an innermost circumference side or on an outermost circumference side of a rotary transformer. Since the device has such a reduced number of recording channels, the distance between adjacent channels can be increased and the transmission loss of a reproduction signal can be reduced.

摘要翻译： 本发明涉及一种磁记录和再现装置，其中可以在记录之后直接进行再现监视，更具体地说，涉及一种用于其的旋转磁鼓的结构。 磁记录和再现装置包括用于n个记录磁头的单个记录通道和用于n个再现磁头的n个再现通道。 记录通道设置在旋转变压器的最内周侧或最外周侧。 由于该设备具有这种减少数量的记录通道，所以可以增加相邻通道之间的距离，并且可以减少再现信号的传输损失。

公开(公告)号：US4959743A

公开(公告)日：1990-09-25

申请号：US219268

申请日：1988-07-15

申请人： Mashanori Kochi ,  Juichi Morikawa ,  Makoto Ibe ,  Shinji Ozaki ,  Hitoshi Takizawa

发明人： Mashanori Kochi ,  Juichi Morikawa ,  Makoto Ibe ,  Shinji Ozaki ,  Hitoshi Takizawa

IPC分类号： G11B15/61

CPC分类号： G11B15/61

摘要： A rotary magnetic head drum apparatus is constituted by at least one video head, a rotary drum having a tape running surface and a head mounting surface to which the video head is securely mounted, and a stationary drum provided with a tape guide and a tape running surface. In the rotary magnetic head drum apparatus, the tape running surface or the rotary drum has a lower end portion which is formed with a tapered portion whose diameter becomes gradually smaller along the axis of the rotary drum, and the tapered portion is projected such that its bottom end surface is located below the plane of the head mounting surface.

摘要翻译： 旋转磁头鼓装置由至少一个视频磁头，具有磁带运行表面的旋转磁鼓和视频磁头被牢固地安装在其上的磁头安装表面构成，以及固定磁鼓，其设置有磁带引导件和磁带运行 表面。 在旋转磁头鼓装置中，磁带运行表面或旋转磁鼓具有下端部，该下端部形成有沿着旋转磁鼓的轴线直径逐渐变小的锥形部分，并且锥形部分被突出，使得其 底端表面位于头安装表面的平面之下。

公开(公告)号：US5057944A

公开(公告)日：1991-10-15

申请号：US232935

申请日：1988-08-16

申请人： Shinji Ozaki ,  Juichi Morikawa ,  Hideo Zama ,  Mashanori Kochi ,  Makoto Ibe

发明人： Shinji Ozaki ,  Juichi Morikawa ,  Hideo Zama ,  Mashanori Kochi ,  Makoto Ibe

IPC分类号： G11B5/024 ,  G11B5/008 ,  G11B15/12 ,  H04N5/7826

CPC分类号： G11B15/125 ,  G11B5/0086 ,  H04N5/7826

摘要： A multiplex recording/reproducing system with at least four video signal recording/reproducing magnetic heads mounted on a rotating body with a predetermined interval in the direction of rotation of the rotating body. At least four audio signal recording/reproducing magnetic heads are mounted on the rotating body, alternately with the video signal recording/reproducing magnetic heads. The magnetic tape is forwarded while being wrapped on the rotating body over a region extending at least a multiple of the predetermined interval. Recording/reproducing circuits record and reproduce the video signal and the audio signal while switching over the video signal and the audio signal recording/reproducing magnetic heads in a predetermined order for every predetermined period. An erase signal is supplied to at least one of the audio signal recording/reproducing magnetic heads, which is disposed preceding to the video signal recording/reproducing magnetic head, which records the video signal on a magnetic tape track, during a period of time where no audio signal is supplied thereto.

摘要翻译： 一种复用记录/再现系统，具有至少四个视频信号记录/再现磁头，其以旋转体的旋转方向以预定的间隔安装在旋转体上。 至少四个音频信号记录/再现磁头与视频信号记录/再现磁头交替地安装在旋转体上。 当磁带被卷绕在旋转体上并延伸至少预定间隔的倍数的区域时，磁带被转送。 记录/再现电路在每隔预定时间以预定顺序切换视频信号和音频信号记录/再现磁头时，记录和再现视频信号和音频信号。 擦除信号被提供给在视频信号记录/再现磁头之前设置的音频信号记录/再现磁头中的至少一个，该磁头将视频信号记录在磁带上，在一段时间内 没有提供音频信号。