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21. 发明授权

US5416651A Apparatus for magnetically recording digital data 失效
标题翻译：用于磁记录数字数据的装置
公开(公告)号：US5416651A
公开(公告)日：1995-05-16
申请号：US785413
申请日：1991-10-30
申请人： Akihiro Uetake , Naofumi Yanagihara , Keiji Kanota
发明人： Akihiro Uetake , Naofumi Yanagihara , Keiji Kanota
IPC分类号： G11B5/008 , G11B5/09 , G11B5/187 , G11B5/21 , G11B5/73 , G11B5/85 , G11B20/00 , G11B20/14 , G11B20/18 , H04N5/782 , H04N5/7826 , H04N5/926 , H04N7/26 , H04N9/804 , H04N9/806 , G11B5/02 , G11B5/58 , H04N5/78
CPC分类号： H04N9/8063 , G11B20/00007 , G11B20/1426 , G11B20/1813 , G11B20/1833 , G11B5/0086 , G11B5/09 , G11B5/187 , G11B5/21 , G11B5/85 , H04N19/98 , H04N5/782 , H04N5/9261 , H04N9/8042 , H04N9/806 , H04N5/78263 , H04N9/8047
摘要： A digital VTR is provided with a block segmenting circuit for converting an input digital picture signal into data segmented into blocks of picture elements, an encoding circuit for compressing and encoding the output data of the block segmenting circuit block-by-block, a channel encoding circuit for channel encoding the encoded output data from the encoding circuit, an audio signal encoding circuit for encoding an input digital audio signal, and an additional code generating circuit for generating an additional control code which includes subdata. The encoded picture data from the channel encoding circuit, the encoded audio data output from the audio signal encoding circuit, the additional control code and pilot signal data for tracking are recorded in skewed tracks traced on a magnetic tape by a magnetic head or heads mounted on a rotary drum, with each skewed track having pilot signal data recorded at least adjacent the end portion of the track at which the magnetic head enters into contract with such track, subdata recorded at the other end portion at which the magnetic head leaves the track, and the picture data and the audio data recorded at an intermediate portion of the track, so that both picture data and audio data can be reproduced with high quality while the subdata can be played back with relatively high accuracy.
摘要翻译：数字VTR设置有块分割电路，用于将输入数字图像信号转换成分割成图像元素的数据，用于逐块压缩和编码块分割电路的输出数据的编码电路，信道编码用于对来自编码电路的编码输出数据进行信道编码的电路，用于对输入数字音频信号进行编码的音频信号编码电路，以及用于生成包括子数据的附加控制码的附加码产生电路。来自频道编码电路的编码图像数据，从音频信号编码电路输出的编码音频数据，附加控制代码和用于跟踪的导频信号数据被记录在磁头上的歪斜轨道上，磁头或磁头安装在旋转滚筒，其中每个歪斜轨迹具有至少邻近轨道的端部处记录的导频信号数据，在该端部处，磁头与磁头离开轨道的另一端部处记录的这种磁道进行收缩，以及记录在轨道的中间部分的图像数据和音频数据，使得可以以高质量再现图像数据和音频数据，同时可以以相对高的精度回放子数据。

22. 发明授权

US5386334A Tape cassette reel locking mechanism 失效
标题翻译：磁带卷盘锁定机构
公开(公告)号：US5386334A
公开(公告)日：1995-01-31
申请号：US16573
申请日：1993-02-11
申请人： Akihiro Uetake
发明人： Akihiro Uetake
IPC分类号： G11B23/087
CPC分类号： G11B23/08742
摘要： A tape cassette having a cassette casing having rotatably contained therein a pair of tape reels having fixed thereto respective ends of a tape and a front lid rotatably supported at the fore end of the cassette casing to cover the front surface of the tape partly led out from the cassette casing through tape outlets provided at the fore end of the cassette casing. The cassette includes reel lock members provided to both side walls of the cassette casing slidably in their forward and backward directions to shift in linkage with opening and closing of the front lid, engagement claws provided rotatably at the rear end sections of the reel lock members to engage in and disengage from engagement teeth provided around the flanges of the tape reels, and elastic deformable members provided between the engagement claws and primary sections to the reel lock members and guide sections to guide the movement of the reel lock members. In operation, the engagement claws of the reel lock members engage in the engagement teeth of the tape reels when the front lid is closed and disengage from the engagement teeth when the front lid is opened.
摘要翻译：一种盒式磁带，其具有可旋转地容纳有一对磁带盘的盒式磁带，其中一对带盘固定在磁带的相应端部上，前盖可旋转地支撑在磁带盒外壳的前端，以覆盖磁带的前表面，盒体通过胶带出口设置在盒壳体的前端。盒式磁带包括卷轴锁定部件，它们以可向前和向后方向可滑动地设置在磁带盒壳体的两个侧壁上的磁带锁定部件，以与前盖的打开和关闭相联动地移动，可旋转地设置在卷轴锁定部件的后端部分的接合爪，与设置在带盘的凸缘周围的啮合齿接合和脱开，以及弹性变形构件，其设置在接合爪和主要部分之间，到卷轴锁定构件和引导部分以引导卷轴锁定构件的移动。在操作中，当前盖关闭时，卷轴锁定构件的接合爪接合在磁带盘的接合齿中，并且当前盖打开时与接合齿脱离啮合。

23. 发明授权

US5384666A Digital picture signal recording apparatus in which a field interval is recorded in a plurality of tracks exhibiting a track pitch no greater than 5.5 .mu.m by a rotary drum having a diameter no greater than 25 mm and a rotary speed no less than 150 rps 失效
标题翻译：数字图像信号记录装置，其中通过直径不大于25mm和旋转速度不小于150rps的旋转滚筒将场间隔记录在表现出不大于5.5μm的轨道间距的多个轨迹中
公开(公告)号：US5384666A
公开(公告)日：1995-01-24
申请号：US768871
申请日：1991-10-29
申请人： Keiji Kanota , Hajime Inoue , Akihiro Uetake , Moriyuki Kawaguchi , Yukio Kubota , Kazunobu Chiba
发明人： Keiji Kanota , Hajime Inoue , Akihiro Uetake , Moriyuki Kawaguchi , Yukio Kubota , Kazunobu Chiba
IPC分类号： G11B5/008 , G11B5/09 , G11B20/00 , G11B20/18 , H04N5/782 , H04N5/7826 , H04N7/26 , H04N9/804 , H04N9/806 , H04N5/78
CPC分类号： H04N19/98 , G11B20/00007 , G11B20/1833 , G11B5/0086 , G11B5/09 , H04N5/782 , H04N9/8042 , H04N9/8047 , H04N9/806 , H04N5/78263 , H04N9/8063
摘要： A magnetic recording apparatus of a digital picture signal comprising a block segmenting circuit for converting an input digital picture signal into data segmented by blocks composed of a plurality of picture elements, an encoding circuit for compressing and encoding the output data of the block segmenting circuit by blocks, and a channel encoding circuit for channel encoding the encoded output data from the encoding circuit, wherein the output data from the channel encoding circuit is recorded on a magnetic tape by a magnetic head mounted on a rotation drum, and wherein the magnetic recording apparatus of digital picture data is characterized in that the track pitch formed on the magnetic tape by the magnetic head is 5.5 .mu.m or less, the diameter of the rotary drum is 25 mm or less, and the rotating speed of the rotary drum is 150 rps or more, the track length per unit time is set to particular value thereby.
摘要翻译： PCT No.PCT / JP91 / 00755 Sec。 371日期1991年10月29日 102（e）1991年10月29日PCT PCT 1991年6月5日PCT公布。第WO92 / 09073号公报日期：1992年5月29日。一种数字图像信号的磁记录装置，包括：块分割电路，用于将输入数字图像信号转换为由多个像素组成的块分割的数据;编码电路，用于压缩和编码输出数据的块分割电路，以及用于对来自编码电路的编码输出数据进行编码的信道编码电路，其中来自信道编码电路的输出数据通过安装在旋转滚筒上的磁头记录在磁带上，并且其中数字图像数据的磁记录装置的特征在于，由磁头形成在磁带上的磁道间距为5.5μm或更小，旋转磁鼓的直径为25mm或更小，旋转鼓为150rps以上，因此将单位时间的轨迹长度设定为特定值。

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