公开(公告)号：US06198589B1

公开(公告)日：2001-03-06

申请号：US08171175

申请日：1993-12-22

申请人： Masaki Oguro ,  Masato Yamaguchi ,  Yoichirou Senshu

发明人： Masaki Oguro ,  Masato Yamaguchi ,  Yoichirou Senshu

IPC分类号： G11B1518

CPC分类号： G11B15/087 ,  G11B15/08 ,  G11B15/18 ,  G11B15/1875 ,  G11B20/1208 ,  G11B27/107 ,  G11B27/11 ,  G11B27/3027 ,  G11B27/3036 ,  G11B27/3063 ,  G11B2220/655 ,  H04N9/8047 ,  H04N9/8063 ,  H04N9/8066 ,  H04N9/888

摘要： Magnetic recording apparatus are provided for recording signals on a magnetic tape. A recording head records signals in successive tracks on the tape and a tape transport transports a magnetic tape past the recording head in a recording direction. In one embodiment, absolute track addresses are recorded in at least some of the tracks, the absolute track address of each track corresponding to a distance of the track from a start position of the magnetic tape. Recording is initiated from a track having a predetermined absolute track address corresponding to a predetermined distance from the start position. In a further embodiment, the tape transport transports the tape initially by a distance necessary to establish a stable running state, and thereafter transports the tape a further distance while recording reproduction control signals so that during reproduction a stable running state may be achieved. Thereafter, information to be output is recorded.

摘要翻译： 磁记录装置用于在磁带上记录信号。 记录头在磁带上的连续轨道中记录信号，并且磁带传送在记录方向上将磁带传送到记录头。 在一个实施例中，绝对轨道地址被记录在至少一些轨道中，每个轨道的绝对轨道地址对应于轨道距离磁带的开始位置的距离。 从具有对应于距开始位置的预定距离的预定绝对轨道地址的轨道开始记录。 在另一个实施例中，磁带传输最初传送带宽以建立稳定的运行状态所需的距离，然后在记录再现控制信号的同时将磁带传输一段距离，使得在再现期间可以实现稳定的运行状态。 此后，记录要输出的信息。

公开(公告)号：US5453892A

公开(公告)日：1995-09-26

申请号：US704118

申请日：1991-05-22

申请人： Shinichi Hasegawa ,  Yoichirou Senshu ,  Kenichi Fukahori ,  Akihiro Uetake

发明人： Shinichi Hasegawa ,  Yoichirou Senshu ,  Kenichi Fukahori ,  Akihiro Uetake

IPC分类号： G11B5/52 ,  G11B5/53 ,  G11B15/61 ,  G11B21/04

CPC分类号： G11B5/534

摘要： In a digital magnetic recording and/or reproducing apparatus, a magnetic head comprises a plurality of head chips mounted closely together in parallel with each other on a rotary drum member which is rotatably supported by dynamic pressure bearing in which a sleeve and a shaft inserted therein are relatively rotatably supported by fluid under pressure therebetween.

摘要翻译： 在数字磁记录和/或再现装置中，磁头包括多个头部芯片，它们彼此平行地安装在旋转鼓构件上，旋转鼓构件由动态压力轴承可旋转地支撑，其中套筒和轴插入其中 由它们之间的压力相对可旋转地支撑流体。

公开(公告)号：US5316236A

公开(公告)日：1994-05-31

申请号：US991266

申请日：1992-12-16

申请人： Shinichi Hasegawa ,  Shuichi Ota ,  Akihiro Uetake ,  Takashi Sawada ,  Yoichirou Senshu ,  Chiaki Sugai

发明人： Shinichi Hasegawa ,  Shuichi Ota ,  Akihiro Uetake ,  Takashi Sawada ,  Yoichirou Senshu ,  Chiaki Sugai

IPC分类号： G11B15/32 ,  G11B15/675 ,  G11B23/087 ,  G11B25/06 ,  G11B15/18

CPC分类号： G11B25/066 ,  G11B15/675 ,  G11B23/087

摘要： A tape supplying and taking up apparatus is capable of use with either large or small size tape cassettes containing reels which can be of different diameters and rotated with a high degree of accuracy by reel spindles of simple structure. Each tape cassette for use with the apparatus has a shutter of the slide type for closing access holes in the bottom wall of the cassette casing.Each of the reel spindles has a large size cassette receiving portion for receiving a tape reel of a large size tape cassette coaxial with a small size cassette receiving portion for receiving a tape reel of a small size tape cassette. The small size cassette receiving portion is smaller in diameter and disposed at a higher position than the large size cassette receiving portion. The diameter of a lower end of a reel spindle engaging hole provided in each reel hub of the small tape cassette is smaller than the outer diameter of the small size cassette receiving portion of the reel spindle. The reel spindle engaging hole of the large size tape cassette has, at a lower end portion thereof, an escape portion which is greater in diameter than the outer diameter of the small size cassette receiving portion of the reel spindle but smaller than the outer diameter of the large size cassette receiving portion and such escape portion is higher than the height of the small size tape receiving portion.

摘要翻译： 磁带供应和拾取装置能够与包含可以具有不同直径的卷轴的大型或小型磁带盒一起使用，并且通过具有简单结构的卷轴以高精度旋转。 与该装置一起使用的每个磁带盒具有用于关闭磁带盒壳体的底壁中的进入孔的滑盖类型的挡板。 每个卷筒主轴具有一个大尺寸的磁带盒接收部分，用于接收与小尺寸磁带盒接收部分同轴的大型磁带盒的磁带卷盘，用于接收小型磁带盒的磁带卷盘。 小尺寸盒式磁带接收部分的直径较小，并且设置在比大尺寸磁带盒接收部分更高的位置。 设置在小磁带盒的每个磁盘盘毂中的卷轴主轴接合孔的下端的直径小于卷轴主轴的小尺寸磁带盒接收部分的外径。 大尺寸磁带盒的卷轴主轴接合孔在其下端部处具有直径大于卷轴主轴的小尺寸磁带盒接收部分的外径的逸出部分，但小于外壳的外径 大尺寸盒式磁带接收部分和这种排出部分高于小尺寸磁带容纳部分的高度。

公开(公告)号：US5862293A

公开(公告)日：1999-01-19

申请号：US791497

申请日：1997-01-27

申请人： Yukio Kubota ,  Yoichirou Senshu

发明人： Yukio Kubota ,  Yoichirou Senshu

IPC分类号： G11B5/588 ,  G11B15/12 ,  G11B15/18 ,  G11B15/467 ,  G11B20/10 ,  G11B20/12 ,  G11B27/032 ,  G11B27/036 ,  G11B27/30 ,  H04N5/7826 ,  H04N5/92 ,  H04N5/926 ,  H04N5/93

CPC分类号： G11B20/10 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4678 ,  G11B20/1208 ,  G11B27/036 ,  G11B27/3063 ,  H04N5/78263 ,  G11B2220/90 ,  G11B27/032 ,  H04N5/9201 ,  H04N5/926 ,  H04N5/9267

摘要： An apparatus and method for reproducing and after-recording digital signals in slant recording tracks sequentially arranged on a recording medium includes a recording subsystem for recording digital signals in each of the slant tracks and a reproducing subsystem for reproducing digital signals therefrom. The recording and reproducing subsystems include one or more recording and/or reproducing heads for scanning each of the tracks for recording and reproducing digital data therein. A tracking control subsystem controls tracking of the heads with respect to the tracks in a reproducing mode based upon tracking signals recorded both in first and second tracking signal recording areas of the tracks located at initial and final scan positions, respectively, of each track. In an after-recording mode, the tracking control subsystem utilizes tracking signals recorded in only one of the tracking signal recording areas while recording digital signals in a first sub information recording area proximal to the area from which the utilized tracking signals have been obtained.

摘要翻译： 依次排列在记录介质上的倾斜记录磁道中再现和后记录数字信号的装置和方法包括用于在每个倾斜磁道中记录数字信号的记录子系统和用于再现数字信号的再现子系统。 记录和再现子系统包括一个或多个用于扫描每个轨道以用于在其中记录和再现数字数据的记录和/或再现头。 跟踪控制子系统基于分别记录在位于每个轨道的初始和最终扫描位置处的轨道的第一和第二跟踪信号记录区域中的跟踪信号，控制在再现模式下相对于轨道的磁头的跟踪。 在后续记录模式中，跟踪控制子系统利用仅跟踪信号记录区域中的一个记录的跟踪信号，同时将数字信号记录在靠近已获得利用的跟踪信号的区域的第一子信息记录区域中。

公开(公告)号：US5369531A

公开(公告)日：1994-11-29

申请号：US937947

申请日：1992-09-01

申请人： Yukio Kubota ,  Yoichirou Senshu

发明人： Yukio Kubota ,  Yoichirou Senshu

IPC分类号： G11B5/09 ,  G11B5/53 ,  G11B20/12 ,  G11B27/032 ,  G11B27/036 ,  H04N5/7826 ,  H04N5/926 ,  G11B5/02

CPC分类号： H04N5/78263 ,  G11B27/036 ,  H04N5/9265 ,  G11B2220/90 ,  G11B27/032

摘要： A digital video tape recorder includes a rotary drum that has a leading head and a trailing head mounted thereon for recording video signals in respective slant tracks scanned on the tape while the tape is advanced. Each of the tracks includes, in sequence in the scanning direction of the respective head, a first auxiliary recording area, a second auxiliary recording area and a video signal recording area. The heads are displaced with respect to each other on the drum in the scanning direction by a distance that is less than the distance in the scanning direction between an ending edge of the first auxiliary recording area of the track formed by the trailing head and a starting edge of the video recording area of the track formed by the leading head. Because of the arrangement of the heads, after-recording of audio signals in the first auxiliary recording area by the trailing head is completed before the leading head begins reproduction of video signals. This prevents cross-talk from the audio recording signal that would disrupt the reproduced video signal. A satisfactory picture can therefore be reproduced during after-recording of audio signals.

摘要翻译： 一种数字录像机包括：旋转鼓，其具有安装在其上的前导头和拖尾头，用于在磁带前进时在磁带上扫描的相应倾斜轨迹中记录视频信号。 每个磁道依次在各个磁头的扫描方向上包括第一辅助记录区域，第二辅助记录区域和视频信号记录区域。 磁头相对于磁鼓在扫描方向上彼此相对移动距离小于由尾部磁头形成的磁道的第一辅助记录区域的结束边缘与起始点之间的扫描方向上的距离 由前导头形成的轨道的视频记录区域的边缘。 由于磁头的布置，在前导磁头开始再现视频信号之前，完成由尾部磁头在第一辅助记录区域中的音频信号的后记录。 这可以防止会扰乱再生视频信号的音频记录信号的串扰。 因此，在音频信号的后记录期间可以再现令人满意的图像。

公开(公告)号：US5671101A

公开(公告)日：1997-09-23

申请号：US577066

申请日：1995-12-21

申请人： Yoichirou Senshu ,  Moriyuki Kawaguchi

发明人： Yoichirou Senshu ,  Moriyuki Kawaguchi

IPC分类号： G11B5/588 ,  G11B5/008 ,  G11B5/53 ,  G11B5/592 ,  G11B15/12 ,  G11B15/46 ,  G11B15/467 ,  G11B20/14 ,  H04N5/7826

CPC分类号： G11B15/4678 ,  G11B15/125 ,  G11B15/463 ,  G11B20/1426 ,  G11B5/0086 ,  G11B5/534 ,  G11B5/592 ,  G11B5/5922

摘要： A magnetic recording and reproducing apparatus includes a rotary drum that has a magnetic tape wound around the drum and first and second magnetic heads mounted on the drum for scanning the magnetic tape as the tape is advanced to reproduce an information signal recorded in successive oblique tracks on the tape. The first magnetic head has a magnetic gap that is inclined in a clockwise direction, relative to a line that is normal to a scanning direction of the magnetic heads, when viewed from the rotary drum. The second magnetic head has a magnetic gap that is inclined in a counterclockwise direction, relative to a line that is normal to the scanning direction of the magnetic heads, when viewed from the rotary drum. A tracking control circuit controls the scanning locus of the first magnetic head relative to an oblique track which the first magnetic head reproduces. The first head is selected for control because it inherently has a weaker signal due to the greater inclination of its azimuth angle from the direction of orientation of the magnetic material on the tape. Also, a tracking control pilot signal is generated by adding respective control bits to subdivisions of predetermined length of a digital recording signal. In this way, a low frequency component is superimposed on the digital signal to form the tracking control pilot signal.

摘要翻译： 一种磁记录和重放装置包括一个旋转磁鼓，它具有卷绕在磁鼓上的磁带以及安装在滚筒上的第一和第二磁头，用于当磁带前进时扫描磁带，以再现记录在相继的倾斜轨道上的信息信号 磁带。 当从旋转滚筒观察时，第一磁头具有相对于垂直于磁头的扫描方向的线在顺时针方向上倾斜的磁隙。 当从旋转滚筒观察时，第二磁头具有相对于与磁头的扫描方向垂直的线在逆时针方向上倾斜的磁隙。 跟踪控制电路相对于第一磁头再现的倾斜轨道控制第一磁头的扫描轨迹。 选择第一个头用于控制，因为其固有地具有较弱的信号，因为其方位角与磁带材料在磁带上的取向方向有较大的倾斜度。 此外，通过将各个控制位相加到数字记录信号的预定长度的细分来产生跟踪控制导频信号。 以这种方式，低频分量叠加在数字信号上以形成跟踪控制导频信号。

公开(公告)号：US5390870A

公开(公告)日：1995-02-21

申请号：US67811

申请日：1993-05-27

申请人： Takashi Sawada ,  Yoichirou Senshu ,  Akihiro Uetake ,  Chiaki Sugai ,  Shuichi Ota ,  Hiroshi Fujii ,  Shinichi Hasegawa ,  Kazuyoshi Suzuki ,  Tetsuro Morii

发明人： Takashi Sawada ,  Yoichirou Senshu ,  Akihiro Uetake ,  Chiaki Sugai ,  Shuichi Ota ,  Hiroshi Fujii ,  Shinichi Hasegawa ,  Kazuyoshi Suzuki ,  Tetsuro Morii

IPC分类号： G11B15/07 ,  G11B23/087 ,  G11B23/30 ,  G11B25/06 ,  H05K1/02 ,  H05K3/22 ,  G11B15/04

CPC分类号： H05K1/0266 ,  G11B15/07 ,  G11B23/08714 ,  G11B23/30 ,  G11B25/066 ,  H05K1/029 ,  H05K2201/10022 ,  H05K3/222

摘要： A recording medium cassette being easily miniaturized if necessary, and a recording and/or reproducing apparatus, such as a VTR, adapted to use the same recording medium cassette. The recording medium cassette includes a printed wiring board having a plurality of information indicating contacts and which is fixed to the bottom wall of a case of the recording medium cassette so that the information indicating contacts are accessible from outside through slots formed in the bottom wall. The recording and/or reproducing apparatus is provided with a plurality of information detecting contacts respectively corresponding to the information indicating contacts of the recording medium cassette. The information detecting contacts may respectively contact the information indicating contacts upon insertion of the recording medium cassette into the recording and/or reproducing apparatus so as to enable information to be transferred therebetween. The VTR is adapted to use both a small-sized tape cassette and a large-sized tape cassette.

摘要翻译： 如果需要，记录介质盒容易小型化，以及适于使用相同记录介质盒的记录和/或再现装置，例如VTR。 记录介质盒包括具有指示触点的多个信息并且固定到记录介质盒的壳体的底壁的印刷布线板，使得从外部通过形成在底壁中的槽可以访问指示触点的信息。 记录和/或再现装置设置有分别对应于指示记录介质盒的触点的信息的多个信息检测触点。 信息检测触点可以在将记录介质盒插入记录和/或再现装置中时分别接触指示触点的信息，以使得能够在其间传送信息。 VTR适用于使用小型磁带盒和大型磁带盒。

公开(公告)号：US6128150A

公开(公告)日：2000-10-03

申请号：US273174

申请日：1999-03-19

申请人： Masaki Oguro ,  Masato Yamaguchi ,  Yoichirou Senshu

发明人： Masaki Oguro ,  Masato Yamaguchi ,  Yoichirou Senshu

IPC分类号： G11B27/28 ,  G11B15/08 ,  G11B15/087 ,  G11B15/18 ,  G11B20/12 ,  G11B27/10 ,  G11B27/11 ,  G11B27/30 ,  H04N9/804 ,  H04N9/806 ,  H04N9/888 ,  G11B17/00

CPC分类号： G11B15/087 ,  G11B15/08 ,  G11B15/18 ,  G11B15/1875 ,  G11B20/1208 ,  G11B27/107 ,  G11B27/11 ,  G11B27/3027 ,  G11B27/3036 ,  G11B27/3063 ,  H04N9/8047 ,  H04N9/8066 ,  G11B2220/655 ,  H04N9/8063 ,  H04N9/888

摘要： Magnetic recording apparatus are provided for recording signals on a magnetic tape. A recording head records signals in successive tracks on the tape and a tape transport transports a magnetic tape past the recording head in a recording direction. In one embodiment, absolute track addresses are recorded in at least some of the tracks, the absolute track address of each track corresponding to a distance of the track from a start position of the magnetic tape. Recording is initiated from a track having a predetermined absolute track address corresponding to a predetermined distance from the start position. In a further embodiment, the tape transport transports the tape initially by a distance necessary to establish a stable running state, and thereafter transports the tape a further distance while recording reproduction control signals so that during reproduction a stable running state may be achieved. Thereafter, information to be output is recorded.

摘要翻译： 磁记录装置用于在磁带上记录信号。 记录头在磁带上的连续轨道中记录信号，并且磁带传送在记录方向上将磁带传送到记录头。 在一个实施例中，绝对轨道地址被记录在至少一些轨道中，每个轨道的绝对轨道地址对应于轨道距离磁带的开始位置的距离。 从具有对应于距开始位置的预定距离的预定绝对轨道地址的轨道开始记录。 在另一个实施例中，磁带传输最初传送带宽以建立稳定的运行状态所需的距离，然后在记录再现控制信号的同时将磁带传输一段距离，使得在再现期间可以实现稳定的运行状态。 此后，记录要输出的信息。

公开(公告)号：US5359428A

公开(公告)日：1994-10-25

申请号：US901226

申请日：1992-06-19

申请人： Yukio Kubota ,  Yoichirou Senshu

发明人： Yukio Kubota ,  Yoichirou Senshu

IPC分类号： G11B5/09 ,  G11B15/18 ,  G11B15/467 ,  G11B20/10 ,  G11B20/18 ,  H04N5/7826 ,  H04N9/79 ,  H04N9/804 ,  H04N9/888 ,  H04N5/782

CPC分类号： H04N9/7921 ,  G11B15/1875 ,  G11B15/4678 ,  G11B20/10009 ,  G11B20/1833 ,  H04N5/78266 ,  H04N9/8042 ,  H04N9/8047 ,  H04N9/888

摘要： Digital video tape recording apparatus of the type which converts a vertical interval of picture data into image blocks of digital picture element data that is compression encoded and recorded on video tape which is selectively driven at first or second speeds, wherein the second speed is approximately 1.5 times faster than the first speed. The digital video recorder includes two rotatable transducers disposed approximately 180.degree. apart, each transducer having a recording gap length, or head width, for recording a track pitch, the gap length being at least equal to the track pitch that is recorded when the tape is driven at the second speed. The transducers have respectively different azimuth angles to minimize crosstalk interference during playback.

摘要翻译： 将图像数据的垂直间隔转换为被压缩编码并记录在以第一或第二速度选择性地驱动的录像带上的数字图像数据的图像块的类型的数字录像带记录装置，其中第二速度约为1.5 倍于第一速度。 该数字录像机包括两个分开设置大约180°的可旋转传感器，每个换能器具有用于记录轨道间距的记录间隙长度或磁头宽度，该间隙长度至少等于磁带所记录的磁道间距 以第二速度驱动。 传感器分别具有不同的方位角，以最大限度地减少播放期间的串扰干扰。

公开(公告)号：US5322237A

公开(公告)日：1994-06-21

申请号：US930350

申请日：1992-08-17

申请人： Shuichi Ota ,  Yoichirou Senshu ,  Akihiro Uetake ,  Shinichi Hasegawa ,  Takashi Sawada ,  Chiaki Sugai

发明人： Shuichi Ota ,  Yoichirou Senshu ,  Akihiro Uetake ,  Shinichi Hasegawa ,  Takashi Sawada ,  Chiaki Sugai

IPC分类号： G11B23/087 ,  G11B23/04

CPC分类号： G11B23/08735

摘要： A tape cassette comprises a case body having a mouth formed in the front portion thereof, a front lid pivotally supported thereon so as to cover the open front side of the case body, and a back lid pivotally joined to the front lid so as to cover a space extending behind the substantially lower half of an exposed portion of a magnetic tape in the mouth. The front lid includes a front wall covering the front opening of the mouth, side walls extending backward from the opposite side edges of the front wall, an upper wall covering the upper opening of the mouth, and a back wall extending downward from the upper wall. The side wall is provided with two guide grooves with two round projections projecting from the inner surface of the side wall being respectively received therein. Each of the two guide grooves has the shape of an arc of a circle having its center at the center of an imaginary circle at one end of the other guide groove. When the front lid is turned toward its opening position, one of the round projections moves first along the corresponding guide groove at the initial stage of turning of the front lid, and then the other round projection moves along the corresponding guide groove at the final stage of turning of the front lid.

摘要翻译： 磁带盒包括一个其前部形成有一个口的盒体，一个可枢转地支撑在其上的前盖，以便覆盖该盒体的敞开的前侧;以及一个后盖，该盖与该前盖铰接以便覆盖 在口中的磁带的暴露部分的大致下半部之后延伸的空间。 前盖包括覆盖口的前开口的前壁，从​​前壁的相对侧边缘向后延伸的侧壁，覆盖口的上开口的上壁和从上壁向下延伸的后壁 。 侧壁设置有两个引导槽，两个引导槽分别从侧壁的内表面突出伸出并分别容纳在其中。 两个引导槽中的每一个具有圆形的弧形，其中心在另一个引导槽的一端处的假想圆的中心。 当前盖朝向其打开位置转动时，在前盖转动的初始阶段，圆形突起中的一个首先沿着相应的引导槽移动，然后另一个圆形突起在最后阶段沿对应的引导槽移动 前盖的转动。