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8 条记录 (耗时 0.014 秒)

    Magnetic recording and reproducing system using preceding and lagging groups of rotary heads to permit coincident timing for reproduced video and audio signals
    1.
    发明授权
    Magnetic recording and reproducing system using preceding and lagging groups of rotary heads to permit coincident timing for reproduced video and audio signals 失效
    磁记录和再现系统使用旋转磁头的前面和后面的组，以允许重现的视频和音频信号的定时

    公开(公告)号：US4811121A

    公开(公告)日：1989-03-07

    申请号：US781150

    申请日：1985-09-23

    申请人： Kunio Sekimoto ,  Masahiko Matsui

    发明人： Kunio Sekimoto ,  Masahiko Matsui

    IPC分类号： H04N5/7826 ,  G11B5/027 ,  G11B20/00 ,  G11B27/02 ,  G11B27/032 ,  H04N5/782 ,  H04N5/928 ,  H04N9/82 ,  H04N9/825

    CPC分类号： H04N5/928 ,  H04N5/782 ,  H04N9/8216 ,  H04N9/8255

    摘要： The present invention relates to a magnetic recording and reproducing system of a rotary head type in which a video signal of a predetermined unit and audio signals corresponding to the video signal of the predetermined unit are sequentially recorded on and reproduced from a magnetic tape as a single record locus which is slanted with respect to the longitudinal direction of the magnetic tape by rotary heads. Two pairs of rotary heads are used as the rotary heads and the video signal and the audio signals to be processed are recorded by one pair of preceding heads among those two pairs of heads, while upon reproduction, the audio signals are reproduced by one pair of preceding heads and the video signal is reproduced by one pair of delayed heads. The reproduced audio signals and the video signal are processed to thereby obtain the video and audio signals in which the timings are coincident.

    摘要翻译： PCT No.PCT / JP85 / 00026 Sec。 371日期：1985年9月23日 102（e）1985年9月23日PCT PCT 1月24日PCT公布。 第WO85 / 03400号公报 日期：1985年8月1日。本发明涉及一种旋转磁头型磁记录和再现系统，其中预定单元的视频信号和对应于预定单元的视频信号的音频信号被顺序地记录在并再现 从作为单个记录轨迹的磁带，其通过旋转磁头相对于磁带的纵向方向倾斜。 使用两对旋转磁头作为旋转磁头，并且要处理的视频信号和音频信号由这两对磁头之中的一对先前的磁头记录，而在再现时，音频信号由一对 先前的头部和视频信号由一对延迟头再现。 处理再现的音频信号和视频信号，从而获得其中定时一致的视频和音频信号。

    Tape cassette with improved cover structure
    2.
    发明授权
    Tape cassette with improved cover structure 失效
    具有改进盖结构的磁带盒

    公开(公告)号：US4809113A

    公开(公告)日：1989-02-28

    申请号：US36970

    申请日：1987-04-10

    申请人： Akihiro Nishimura ,  Masao Kawagishi ,  Hideki Sakumoto ,  Masahiko Matsui ,  Yoshinori Shiomi

    发明人： Akihiro Nishimura ,  Masao Kawagishi ,  Hideki Sakumoto ,  Masahiko Matsui ,  Yoshinori Shiomi

    IPC分类号： G11B23/087 ,  G11B23/08

    CPC分类号： G11B23/08735

    摘要： A tape cassette for use in a video tape recorder or the like, which includes a cassette main body having an upper case and a lower case fitted to each other to define the main body, and a front cover movably mounted on the cassette main body for covering a magnetic tape stretched along a front face of the cassette main body, and is characterized in that there are provided a protrusion formed at the lower portion of the front cover so as to extend in a direction toward the lower case, and a corresponding protruding portion formed on the lower case so as to extend in a direction toward the magnetic tape, and thus, upon closure of the front cover, the protrusion of the front cover is adapted to be located at a position below the protruding portion of the lower case.

    摘要翻译： 一种用于录像机等的磁带盒，其包括具有彼此嵌合以限定主体的上壳体和下壳体的盒主体以及可移动地安装在盒主体上的前盖， 覆盖沿着盒主体的前表面延伸的磁带，其特征在于，在前盖的下部形成有朝向下壳体的方向延伸的突起， 部分形成在下壳体上，以沿着朝向磁带的方向延伸，因此，在封闭前盖时，前盖的突出部适于位于下壳体的突出部分下方的位置 。

    Tape cassettes having bottom grooves for use in tape recorder having bottom projection in cassette holder
    3.
    发明授权
    Tape cassettes having bottom grooves for use in tape recorder having bottom projection in cassette holder 失效
    具有用于磁带录音机底部凹槽的磁带盒具有盒式磁带架中的底部突起

    公开(公告)号：US4803575A

    公开(公告)日：1989-02-07

    申请号：US36971

    申请日：1987-04-10

    申请人： Akihiro Nishimura ,  Masao Kawagishi ,  Hideki Sakumoto ,  Masahiko Matsui ,  Yoshinori Shiomi

    发明人： Akihiro Nishimura ,  Masao Kawagishi ,  Hideki Sakumoto ,  Masahiko Matsui ,  Yoshinori Shiomi

    IPC分类号： G11B15/675 ,  G11B23/087

    CPC分类号： G11B15/675 ,  G11B23/08785

    摘要： An improved standard size video cassette has a top shell and a bottom shell held together so as to define a rectangular casing for storing therein a magnetic tape wound on reels. The bottom shell is formed with a groove having a width sufficiently wide to receive the projection therein with hardly any contact during cassette insertion into or ejection from the holder. An improved reduced size video cassette has a top shell and a bottom shell held together so as to define a rectangular casing for storing therein a magnetic tape wound on reels. The bottom shell is formed with the groove which is located such that a distance between the center of the groove and one end of the rectangular casing is slightly smaller than the distance between a center of the projection and one of the opposite side plates.

    摘要翻译： 改进的标准尺寸的录像带具有保持在一起的顶壳和底壳，以便限定用于在其中存储缠绕在卷轴上的磁带的矩形壳体。 底壳形成有宽度足够宽的凹槽，以在盒插入或从保持器中弹出时几乎不接触凸起。 改进的减小尺寸的录像带具有保持在一起的顶壳和底壳，以便限定用于在其中存储缠绕在卷轴上的磁带的矩形壳体。 底壳形成有凹槽，凹槽的位置使得凹槽的中心和矩形壳体的一端之间的距离略小于突起的中心与相对的侧板之一之间的距离。

    Optical fiber, optical transmission line and optical communications system
    4.
    发明授权
    Optical fiber, optical transmission line and optical communications system 有权
    光纤，光传输线和光通信系统

    公开(公告)号：US07164829B2

    公开(公告)日：2007-01-16

    申请号：US10232825

    申请日：2002-09-03

    申请人： Masao Tsukitani ,  Masahiko Matsui ,  Takatoshi Kato

    发明人： Masao Tsukitani ,  Masahiko Matsui ,  Takatoshi Kato

    IPC分类号： G02B6/02

    CPC分类号： G02B6/02271 ,  G02B6/03633 ,  G02B6/29377

    摘要： An optical fiber is formed for use in optical communications systems capable of transmitting and receiving a large volume of information. The optical fiber has a chromatic dispersion of at least 4 ps/nm/km and at most 15 ps/nm/km at a wavelength of 1,550 nm, a transmission loss of at most 0.190 dB/km at a wavelength of 1,530 to 1,570 nm, and an effective cutoff wavelength measured by the 2-meter method of 1610 nm or more. An optical transmission line and an optical communications system are structured by using the foregoing optical fiber.

    摘要翻译： 形成用于能够发送和接收大量信息的光通信系统中的光纤。 光纤的波长为1,550nm时的色散至少为4ps / nm / km，最多为15ps / nm / km，波长为1,530〜1570nm时的传输损耗为0.190dB / km以下 ，通过2米法测定的有效截止波长为1610nm以上。 通过使用上述光纤构成光传输线路和光通信系统。

    Method of production of porous glass base material for optical fiber with cleaning of the burner with gas at 25 m/s or faster
    7.
    发明授权
    Method of production of porous glass base material for optical fiber with cleaning of the burner with gas at 25 m/s or faster 有权
    生产用于光纤的多孔玻璃基材的方法，用25m / s或更快的气体清洁燃烧器

    公开(公告)号：US06449986B2

    公开(公告)日：2002-09-17

    申请号：US09423237

    申请日：1999-11-05

    申请人： Takashi Sugiyama ,  Masahiko Matsui ,  Nobuyuki Hirano ,  Naoyuki Fukushima ,  Takao Kabaya

    发明人： Takashi Sugiyama ,  Masahiko Matsui ,  Nobuyuki Hirano ,  Naoyuki Fukushima ,  Takao Kabaya

    IPC分类号： C03B37018

    CPC分类号： C03B37/0142 ,  C03B37/0144 ,  C03B2207/06 ,  C03B2207/20 ,  C03B2207/22 ,  C03B2207/46 ,  C03B2207/50

    摘要： In a method of manufacturing a porous glass preform for an optical fiber which preform is formed as a deposit of fine glass particles by using a burner, a method to prevent the contamination of any glass particles having failed to be properly deposited so that the generation of voids may be minimized in a transparent glass preform which is produced by heating the porous glass preform. An inert gas is caused to flow through the burner at a rate of at least 25 m/s before fine glass particles are formed by the hydrolysis and/or oxidation of a glass material in a flame produced by the burner supplied with a mixture of a gas of the glass material and a gas for combustion and are deposited on a rotating starting member. It is desirable to elevate the pressure of the inert gas above the atmospheric pressure by a device connected to the burner by a pipeline, and cause it to flow rapidly through the burner.

    摘要翻译： 在制造用于光纤的多孔玻璃预制件的方法中，预成型体通过使用燃烧器形成为细微玻璃颗粒的沉积物，防止任何玻璃颗粒被污染的方法不能适当地沉积，以便产生 在通过加热多孔玻璃预制件产生的透明玻璃预制件中，空隙可能被最小化。 在惰性气体以至少25m / s的速率流动，在通过在由燃烧器产生的火焰中水解和/或氧化玻璃材料形成细玻璃颗粒之前， 玻璃材料的气体和用于燃烧的气体沉积在旋转的起始构件上。 期望通过管道连接到燃烧器的装置将惰性气体的压力提升到高于大气压力，并使其快速流过燃烧器。