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    • 1. 发明授权
    • Tape supplying and taking up apparatus and tape cassettes for use
therewith
    • 磁带供应和卷取与其一起使用的设备和磁带盒
    • US5316236A
    • 1994-05-31
    • US991266
    • 1992-12-16
    • Shinichi HasegawaShuichi OtaAkihiro UetakeTakashi SawadaYoichirou SenshuChiaki Sugai
    • Shinichi HasegawaShuichi OtaAkihiro UetakeTakashi SawadaYoichirou SenshuChiaki Sugai
    • G11B15/32G11B15/675G11B23/087G11B25/06G11B15/18
    • G11B25/066G11B15/675G11B23/087
    • 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.
    • 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。
    • 3. 发明授权
    • Lid assembly for a tape cassette which protects front and rear surfaces
of a magnetic tape
    • 用于保护磁带前后表面的磁带盒的盖组件
    • US5322237A
    • 1994-06-21
    • US930350
    • 1992-08-17
    • Shuichi OtaYoichirou SenshuAkihiro UetakeShinichi HasegawaTakashi SawadaChiaki Sugai
    • Shuichi OtaYoichirou SenshuAkihiro UetakeShinichi HasegawaTakashi SawadaChiaki Sugai
    • G11B23/087G11B23/04
    • G11B23/08735
    • 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.
    • 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。
    • 5. 发明授权
    • Tape cassette
    • 磁带盒
    • US5502608A
    • 1996-03-26
    • US314368
    • 1994-09-28
    • Yoichirou SenshuShuichi OtaHiroshi FujiiAkihiro UetakeTakashi SawadaShinichi HasegawaKazuyoshi SuzukiTetsuro Morii
    • Yoichirou SenshuShuichi OtaHiroshi FujiiAkihiro UetakeTakashi SawadaShinichi HasegawaKazuyoshi SuzukiTetsuro Morii
    • G11B15/61G11B23/087G11B23/02
    • G11B15/615G11B23/08735
    • In a tape cassette having a case with a mouth for receiving a magnetic head drum of a recording/reproducing apparatus and containing a recording tape wound on rotatable reels and including a tape run extending across the mouth; a front lid is pivotally supported on side walls of the case so as to be movable between a closed position covering a front opening of the mouth and opened position to uncover the tape run, and upper lid is pivotally joined at its front edge to the upper edge portion of the front lid so as to be movable between a closed position to covering a top opening of the mouth and opened position to uncover the top opening, and a slide shutter is supported on the case for sliding between a closed position covering a bottom opening of the mouth and opened position to uncover such bottom opening. The mouth across which a run of the recording tape extends can be closely covered by the front lid, the upper lid and the slide shutter when the tape cassette is not in use. When the tape cassette is in use, the mouth is fully opened in response to the movements of the front lid, upper lid and slide shutter to this opened position so as to enable the magnetic head drum to advance deep into the mouth.
    • 在具有用于接收记录/再现装置的磁头鼓的口的盒子的盒式磁带中,并且包含缠绕在可旋转卷盘上的记录带,并且包括延伸穿过该口的磁带延伸部; 前盖被枢转地支撑在壳体的侧壁上,以便能够在覆盖嘴的前开口的关闭位置和打开位置之间移动以揭开带子的行程,并且上盖在其前边缘处枢转地连接到上部 前盖的边缘部分能够在关闭位置之间移动以覆盖嘴的顶部开口和打开位置以露出顶部开口,并且滑动挡板支撑在壳体上,以在覆盖底部的封闭位置之间滑动 打开口并打开位置以露出这样的底部开口。 当磁带盒不使用时,记录带延伸的行程可以被前盖,上盖和滑动挡板紧密地覆盖。 当使用磁带盒时,响应于前盖,上盖和滑动闸板的移动,该口完全打开到该打开位置,以使磁头鼓能够深入到口中。
    • 10. 发明授权
    • Digital video signal recording apparatus with leading and trailing heads
displaced by a distance less than the distance between the ending edge
of an auxiliary recording area and the starting edge of the video
signal recording area
    • 数字视频信号记录装置,其前导和后退头部移位距离小于辅助记录区域的结束边缘与视频信号记录区域的起始边缘之间的距离
    • US5369531A
    • 1994-11-29
    • US937947
    • 1992-09-01
    • Yukio KubotaYoichirou Senshu
    • Yukio KubotaYoichirou Senshu
    • G11B5/09G11B5/53G11B20/12G11B27/032G11B27/036H04N5/7826H04N5/926G11B5/02
    • H04N5/78263G11B27/036H04N5/9265G11B2220/90G11B27/032
    • 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.
    • 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。