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1. 发明授权

US4843493A Rotary head type magnetic recording and reproducing apparatus and method of producing tracking control signals therefor 失效
标题翻译：旋转磁头型磁记录和再现装置及其跟踪控制信号的产生方法
公开(公告)号：US4843493A
公开(公告)日：1989-06-27
申请号：US838958
申请日：1986-03-12
申请人： Takashi Furuhata , Yasufumi Yumde , Fujio Okamura , Takaharu Noguchi , Toshifumi Shibuya , Katsuo Mohri , Takao Arai , Toshimichi Terada
发明人： Takashi Furuhata , Yasufumi Yumde , Fujio Okamura , Takaharu Noguchi , Toshifumi Shibuya , Katsuo Mohri , Takao Arai , Toshimichi Terada
IPC分类号： G11B15/467 , G11B15/473
CPC分类号： G11B15/4672 , G11B15/4678 , G11B15/4738
摘要： A method of producing a tracking control signal in a rotary head type magnetic recording and reproducing apparatus and a rotary head type magnetic recording and reproducing apparatus capable of a proper tracking by the use of the tracking control signal. First and second tracking signals are recorded on local portions of each odd-numbered track and the first tracking signal and a third tracking signal are recorded on local portions of each even-numbered track in such a manner that the second tracking signals on two odd-numbered track adjacent to any one even-numbered track are not overlapped with each other and the third tracking signals on two even-numbered tracks adjacent to any one odd-numbered track are not overlapped with each other when viewed in a direction perpendicular to the longitudinal direction of the tracks; upon scanning of a track crosstalk signals are detected from two adjacent track simultaneously with reproduction of the first and second or third tracking signals; and the detected crosstalk signals are compared by the use of timing of the reproduction of the first tracking signal for each track thereby producing a tracking control signal. The second tracking signal may have a frequency equal to that of the third tracking frequency.
摘要翻译：一种在旋转磁头式磁记录和再现装置中产生跟踪控制信号的方法以及能够通过使用跟踪控制信号进行适当跟踪的旋转磁头型磁记录和再现装置。第一跟踪信号和第二跟踪信号被记录在每个奇数号的轨道的本地部分上，并且第一跟踪信号和第三跟踪信号被记录在每个偶数轨迹的本地部分上，与任何一个偶数编号的轨道相邻的编号轨道彼此不重叠，并且在与任何一个奇数编号的轨道相邻的两个偶数轨道上的第三跟踪信号在垂直于纵向的方向上观察时不彼此重叠轨道方向; 在轨道的扫描时，与第一和第二或第三跟踪信号的再现同时从两个相邻轨道检测串扰信号; 并且通过使用每个轨道的第一跟踪信号的再现的定时来比较检测到的串扰信号，从而产生跟踪控制信号。第二跟踪信号可以具有等于第三跟踪频率的频率。

2. 发明授权

US4163266A Magnetic tape scanning assembly for use in video tape recorder and playback apparatus 失效
标题翻译：用于录像机和播放装置的磁带扫描组件
公开(公告)号：US4163266A
公开(公告)日：1979-07-31
申请号：US872454
申请日：1978-01-26
申请人： Takeo Tamamura , Naotatsu Asahi , Makoto Nakayama , Masataka Kasai , Akira Saito , Toshimichi Terada
发明人： Takeo Tamamura , Naotatsu Asahi , Makoto Nakayama , Masataka Kasai , Akira Saito , Toshimichi Terada
IPC分类号： B65H23/00 , C22C21/02 , G11B5/52 , G11B15/60 , G11B15/61 , G11B21/18
CPC分类号： C22C21/02 , G11B15/61 , G11B5/52
摘要： Guiding drums for a magnetic tape scanning assembly for use in a video tape recorder and playback apparatus are made of a specific aluminum-silicon alloy consisting essentially of 8 to 15% by weight of silicon, 1 to 4% by weight of copper, 0.05 to 0.6% by weight of magnesium, and the balance being aluminum. A mean grain size of silicon crystal in eutectic structure is controlled to be 5 .mu.m or less. The drums are provided with a diagonal or helical guiding path on the peripheries thereof in which there are formed on the guiding path generally continuous, fine machining lines having a roughness (H max) of 1 to 6 .mu.m, preferably 2 to 5 .mu.m, in a direction parallel with sliding travel of a magnetic tape.
摘要翻译：用于磁带录像机和回放装置的磁带扫描组件的引导鼓由特定的铝 - 硅合金制成，其基本上由8至15重量％的硅，1至4重量％的铜，0.05至 0.6重量％的镁，余量为铝。将共晶结构中的硅晶体的平均晶粒尺寸控制在5μm以下。滚筒在其周边上设置有对角或螺旋形的引导路径，其中在引导路径上形成大致连续的粗糙加工线，其粗糙度（H max）为1至6μm，优选为2至5μm 在与磁带的滑动行进平行的方向上。

3. 发明授权

US5113296A Mechanism for winding a tape from a tape cassette onto a rotatable cylinder of a VCR 失效
公开(公告)号：US5113296A
公开(公告)日：1992-05-12
申请号：US430416
申请日：1989-11-02
申请人： Hisao Kaneko , Kichizaemon Okazaki , Toshimichi Terada
发明人： Hisao Kaneko , Kichizaemon Okazaki , Toshimichi Terada
IPC分类号： G11B15/43 , G11B15/61 , G11B15/665
CPC分类号： G11B15/43 , G11B15/61 , G11B15/6658
摘要： Movable members of a tape guide member for tape loading are disposed in plural numbers on both the upstream side and the downstream side of a tape running path with respect to a rotatable cylinder, or are disposed in plural number on at least either the upstream side or the downstream side. The plurality of movable members are disposed offset from each other in the radial direction of the rotatable cylinder. Tilt guides for converting the tape running direction are disposed between the associated movable members, and fixed to the stationary component side. A guide passage forming member along which the movable members are guided is also fixed to the stationary component side. Guide portions of the guide passage forming member are provided in plural number individually associated with the movable members. The guide portion nearer to the rotatable cylinder is set to always have a larger tilt angle than that of the outer guide portion with the plane of a tape cassette being a reference. The tilt angles of the guide portions are made different from each other between the upstream side and the downstream side, and are set to direct upwardly with respect to the loading direction at least on either one of the upstream side and the downstream side. A tape tension control member is disposed along the associated guide portion for being rotated about a stationary fulcrum upon movement of the movable member of the tape guide member.

4. 发明授权

US4497000A Magnetic recording/reproducing apparatus 失效
标题翻译：磁记录/再现装置
公开(公告)号：US4497000A
公开(公告)日：1985-01-29
申请号：US471129
申请日：1983-03-01
申请人： Toshimichi Terada , Keiichi Komatsu , Akira Shibata , Kenji Satoh
发明人： Toshimichi Terada , Keiichi Komatsu , Akira Shibata , Kenji Satoh
IPC分类号： H04N5/7826 , G11B5/588 , G11B5/592 , G11B15/467 , G11B5/55
CPC分类号： G11B15/4678 , G11B5/5922
摘要： A magnetic recording/reproducing apparatus for sequentially recording each of four pilot signals of different frequencies on each video track to be multiplexed with a video signal and reproducing the video signal and the pilot signals at which time the pilot signals are separated from the video signal and used as a tracking signal to control the transport speed of the magnetic tape, wherein upon reproduction the levels of the pilot signals reproduced from the right and left adjacent video tracks are detected and one of the reproduced pilot signals from the right and left adjacent tracks is controlled in its level so that the tape travelling speed is controlled to make the center of the video head scan the same position on the track as upon recording.
摘要翻译：一种磁记录/再现装置，用于在每个视频轨道上依次记录不同频率的四个导频信号中的每一个以与视频信号复用并再现视频信号和导频信号，此时导频信号与视频信号分离;以及用作跟踪信号以控制磁带的传输速度，其中在再现时检测从左右相邻视频磁道再现的导频信号的电平，并且来自左右相邻磁道的再现的导频信号之一是控制其水平，使得磁带行进速度被控制，使得视频头的中心在记录时扫描轨道上的相同位置。

5. 发明授权

US4789912A Magnetic recording and reproducing apparatus of rotary head type 失效
标题翻译：旋转头型磁记录和再现装置
公开(公告)号：US4789912A
公开(公告)日：1988-12-06
申请号：US4558
申请日：1987-01-20
申请人： Kenmei Masuda , Toshimichi Terada , Kenji Ogiro , Shozo Yokoo , Osamu Uchiyama
发明人： Kenmei Masuda , Toshimichi Terada , Kenji Ogiro , Shozo Yokoo , Osamu Uchiyama
IPC分类号： G11B15/02 , G11B15/665 , G11B15/675 , G11B5/027
CPC分类号： G11B15/67565 , G11B15/6656
摘要： A magnetic recording and reproducing apparatus of rotary head type such as a rotatable video tape recorder has a tape guide for guiding the magnetic tape when the tape runs on and around a cylinder carrying rotary heads. A tape loading movable member carries the tape guide. A tape loading drive is provided for driving the tape loading movable member so as to move the tape guide between a tape loading position where it places the magnetic tape in contact with the cylinder through a predetermined angle and an unloading position where it keeps the magnetic tape away from the cylinder. A locating unit is provided on at least one of the cylinder and a cylinder base carrying the cylinder. The locating unit is adapted for engaging with the tape loading movable member in the tape loading position so as to locate the tape guide with respect to the cylinder. The tape loading drive drives the tape loading movable member by making use of the mechanical motion of a cassette holder for mounting the cassette on a predetermined portion of the apparatus.
摘要翻译：诸如可旋转磁带录像机的旋转磁头类型的磁记录和再现装置具有磁带引导件，用于当磁带在承载旋转磁头的磁带上运行时，引导磁带。磁带装载活动件承载磁带引导件。提供带式装载驱动装置用于驱动带装载活动件，以使带导向件在其将磁带与气缸接触预定角度的带装载位置和卸载位置之间移动，远离气缸。一个定位单元设置在气缸中的至少一个和承载气缸的气缸底座上。定位单元适于与带装载可移动构件在带装载位置接合，以使带导轨相对于气缸定位。带式装载驱动器通过利用用于将盒安装在装置的预定部分上的盒架的机械运动来驱动带装载活动件。

6. 发明授权

US5144505A Mechanism for winding a tape from a tape cassette onto a rotatable cylinder of a VCR 失效
标题翻译：将带从带盒卷绕到VCR的可旋转圆筒上的机构
公开(公告)号：US5144505A
公开(公告)日：1992-09-01
申请号：US794026
申请日：1991-11-19
申请人： Hisao Kaneko , Kichizaemon Okazaki , Toshimichi Terada
发明人： Hisao Kaneko , Kichizaemon Okazaki , Toshimichi Terada
IPC分类号： G11B15/43 , G11B15/61 , G11B15/665
CPC分类号： G11B15/43 , G11B15/61 , G11B15/6658
摘要： Movable members of a tape guide member for tape loading are disposed in plural numbers on both the upstream side and the downstream side of a tape running path with respect to a rotatable cylinder, or are disposed in plural number on at least either the upstream side or the downstream side. The plurality of movable members are disposed offset from each other in the radial direction of the rotatable cylinder. Tilt guides for converting the tape running direction are disposed between the associated movable members, and fixed to the stationary component side. A guide passage forming member along which the movable members are guided is also fixed to the stationary component side. Guide portions of the guide passage forming member are provided in plural number individually associated with the movable members. The guide portion nearer to the rotatable cylinder is set to always have a larger tilt angle than that of the outer guide portion with the plane of a tape cassette being a reference. The tilt angles of the guide portions are made different from each other between the upstream side and the downstream side, and are set to direct upwardly with respect to the loading direction at least on either one of the upstream side and the downstream side. A tape tension control member is disposed along the associated guide portion for being rotated about a stationary fulcrum upon movement of the movable member of the tape guide member.
摘要翻译：在带运行路径的上游侧和下游侧相对于可旋转筒体的多个位置上配置有用于带装载的带引导构件的可移动构件，或者多个数量地设置在至少上游侧或下游侧。多个可动构件在可旋转圆筒的径向上彼此偏移地设置。用于转换磁带运行方向的倾斜导向件设置在相关联的可移动部件之间，并固定到固定部件侧。导向通道形成构件也可固定在静止部件侧。引导通道形成构件的引导部分分别与可动构件相关联地设置。更靠近可旋转气缸的引导部分被设置为总是具有比带引导件的平面的外引导部分更大的倾斜角度。引导部分的倾斜角度在上游侧和下游侧之间彼此不同，并且被设定为至少在上游侧和下游侧中的任一个上相对于装载方向向上引导。带张力控制构件沿着相关联的引导部分设置，以在带引导构件的可动构件移动时围绕固定支点旋转。

7. 发明授权

US4630132A Video signal recording/reproducing apparatus 失效
标题翻译：视频信号记录/再现装置
公开(公告)号：US4630132A
公开(公告)日：1986-12-16
申请号：US559086
申请日：1983-12-07
申请人： Toshimichi Terada , Noboru Kojima , Akira Shibata
发明人： Toshimichi Terada , Noboru Kojima , Akira Shibata
IPC分类号： H04N5/7826 , H04N9/82 , H04N9/825 , H04N9/493 , H04N5/78
CPC分类号： H04N9/8255 , H04N5/78263 , H04N9/8205 , H04N9/8216 , H04N9/825
摘要： A helical scan type magnetic recording/reproducing apparatus in which a magnetic tape is guided helically around a rotary magnetic head assembly over an angular range approximating to 360.degree.. Two magnetic heads are disposed relatively closely to each other at an angle smaller than 180.degree.. The rotary magnetic heads assembly performs a single complete rotation for a unit period, for example, one field period. In recording, video signal of the unit period undergoes time axis compression to be compressed to a period corresponding to a scanning period of the heads during which the magnetic heads are in contact with the magnetic tape in each rotation of the head assembly and supplied to alternately the magnetic heads which are so designed that the azimuth angles of the respective gaps differ from each other. Alternatively, the video signal is separated into a luminance signal and a chrominance signal, wherein the former is supplied to one of the magnetic heads while the latter is simultaneously supplied to the other.
摘要翻译：一种螺旋扫描型磁记录/再现装置，其中磁带在近似于360度的角度范围内螺旋地绕旋转磁头组件被引导。两个磁头以小于180°的角度彼此相对靠近地设置。旋转磁头组件在单个周期内执行单个完整旋转，例如，一个场周期。在记录中，单位周期的视频信号经历时间轴压缩，以被压缩到对应于在头部组件的每次旋转期间磁头与磁带接触的磁头的扫描周期的时间段，并交替提供磁头被设计成使得各间隙的方位角彼此不同。或者，视频信号被分成亮度信号和色度信号，其中前者被提供给一个磁头，而后者则被提供给另一个。

8. 发明授权

US4550345A Magnetic video pilot signal recording/reproducing system 失效
标题翻译：磁视频导频信号记录/再现系统
公开(公告)号：US4550345A
公开(公告)日：1985-10-29
申请号：US447797
申请日：1982-12-08
申请人： Toshimichi Terada , Tomomitsu Kuroyanagi , Noboru Kozima , Akira Shibata
发明人： Toshimichi Terada , Tomomitsu Kuroyanagi , Noboru Kozima , Akira Shibata
IPC分类号： G11B5/008 , G11B15/467 , H04N5/783 , H04N5/92
CPC分类号： H04N5/783 , G11B15/467 , G11B5/00878
摘要： In a video tape recorder of the rotary two-head helically scanning type, a magnetic recording/reproducing system provided with a mode judging device in which a video signal is recorded onto a recording track in a multiplex manner together with a pilot signal for use in judgement of the recording time mode and when the record is reproduced the pilot signal is detected to thereby judge the recording time mode.
摘要翻译：在旋转双头螺旋扫描型的录像机中，设置有模式判断装置的磁记录/再现系统，其中视频信号与导频信号一起以多路复用方式与记录磁道一起记录在一起记录时间模式的判断和记录重放时，检测导频信号，从而判断记录时间模式。

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