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43 条记录 (耗时 0.02 秒)

    Transmission method, transmission apparatus, video equipment, and display apparatus
    31.
    发明公开
    Transmission method, transmission apparatus, video equipment, and display apparatus 审中-公开
    传输方法，传输设备，视频设备和显示设备

    公开(公告)号：EP2037618A2

    公开(公告)日：2009-03-18

    申请号：EP08252163.4

    申请日：2008-06-24

    申请人： Hitachi, Ltd.

    发明人： Kurita, Toshiyuki ,  Owashi, Hitoaki

    IPC分类号： H04L5/02

    CPC分类号： H04L27/34 ,  H04N5/23222 ,  H04N7/17318 ,  H04N7/52 ,  H04N21/643

    摘要： The present invention provides technology for improving the convenience of information transmission and connection in the case of transmitting information by connecting together a plurality of pieces of video equipment (100, 200, 300). To that end, the present invention is one that transmits a baseband video signal and/or a compressed video signal between a first piece of video equipment (100) and a second piece of video equipment (200) by means of a bidirectional interface 10 and is characterized by the fact that the aforementioned bidirectional interface (10) has transmission rates that are asymmetric in the uplink and the downlink, narrowband information is transmitted in the downlink in case broadband information is transmitted in the uplink, and narrowband information is transmitted in the uplink in case broadband information is transmitted in the downlink.

    摘要翻译： 本发明提供了用于在通过将多个视频设备（100,200,300）连接在一起来传输信息的情况下提高信息传输和连接的便利性的技术。 为此，本发明通过双向接口10在第一片视频设备（100）和第二片视频设备（200）之间传输基带视频信号和/或压缩视频信号， 其特征在于，上述双向接口（10）具有在上行链路和下行链路中不对称的传输速率，在上行链路中传输宽带信息的情况下，在下行链路中传输窄带信息，并且在 在下行链路中发送宽带信息的情况下的上行链路。

    Digital signal recording/ reproducing apparatus and recording method
    37.
    发明公开
    Digital signal recording/ reproducing apparatus and recording method 失效
    Gerätzur Aufnahme / Wiedergabe von digitalen Signalen und Aufnahmeverfahren

    公开(公告)号：EP0794531A2

    公开(公告)日：1997-09-10

    申请号：EP97103426.9

    申请日：1997-03-03

    申请人： HITACHI, LTD.

    发明人： Okamoto, Hiroo ,  Noguchi, Takaharu ,  Owashi, Hitoaki

    IPC分类号： G11B20/18

    CPC分类号： G11B20/1813

    摘要： An apparatus and method for recording on and reproducing from a magnetic tape (111) a digital signal (41) by rotating heads (100). A synchronizing signal (20), a control signal (21), and an error correction code (23) are added to the digital signal (41), and the digital signal with those signals added is converted into a block form. At the recording time, a recording signal produced from a recording circuit (412) is recorded on the recording medium by a first head (D1) of the rotating heads (100), and at the same time the recorded signal is reproduced by a second head (D2) of the rotating heads (100). In addition, there are provided a first recording mode in which error correction codes are doubly added, and a second recording mode in which the error correction codes are triply added. Thus, the recorded signal can be confirmed by the simultaneous playback made at the recording time so that the reliability in data can be assured.

    摘要翻译： 一种用于通过旋转头（100）在磁带（111）上记录数字信号（41）并再现数字信号的装置和方法。 将同步信号（20），控制信号（21）和纠错码（23）加到数字信号（41）上，并将具有这些信号的数字信号转换成块形式。 在记录时间，由记录电路（412）产生的记录信号由旋转磁头（100）的第一磁头（D1）记录在记录介质上，同时记录信号被再次记录 旋转头（100）的头部（D2）。 此外，提供了其中双重添加纠错码的第一记录模式和其中三次相加纠错码的第二记录模式。 因此，可以通过在记录时间进行的同时重放来确认所记录的信号，从而可以确保数据的可靠性。

    Digital signal recording method and apparatus
    38.
    发明公开
    Digital signal recording method and apparatus 失效
    用于记录数字信号的方法和装置

    公开(公告)号：EP0735536A3

    公开(公告)日：1997-07-23

    申请号：EP96104729.7

    申请日：1996-03-25

    申请人： HITACHI, LTD.

    发明人： Okamoto, Hiroo ,  Hosokawa, Kyoichi ,  Owashi, Hitoaki ,  Noguchi, Takaharu

    IPC分类号： G11B20/10 ,  G11B20/18 ,  H04N9/804

    CPC分类号： H04N5/9261 ,  G11B20/10009 ,  G11B20/1833

    摘要： A digital signal recording method and apparatus for recording a digital signal on a recording medium (111) by dividing the digital signal at intervals of a certain byte number, adding to each of the divided signals a synchronizing signal, a control signal including block address information, and an error detection and correction code to form signal blocks, and precoding each of the signal blocks in order to detect a partial response. Before the precode processing, the digital signal and the error detection and correction code are scrambled (303) on the basis of the control signal, and the control signal is inverted (301).

    Video signal recording apparatus and video signal recording and reproducing apparatus
    39.
    发明公开
    Video signal recording apparatus and video signal recording and reproducing apparatus 失效
    视频信号记录装置和视频信号记录和再现装置

    公开(公告)号：EP0718825A1

    公开(公告)日：1996-06-26

    申请号：EP95119989.2

    申请日：1995-12-18

    申请人： HITACHI, LTD.

    发明人： Amada, Nobutaka ,  Owashi, Hitoaki ,  Noguchi, Takaharu ,  Kumasaka, Noriyuki ,  Zama, Hideo

    IPC分类号： G11B5/008 ,  G11B15/12 ,  G11B15/18 ,  G11B15/467 ,  G11B15/02 ,  H04N5/782 ,  H04N9/79

    CPC分类号： H04N5/78213 ,  G11B5/0086 ,  G11B5/00878 ,  G11B15/02 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4671 ,  G11B15/4672 ,  G11B15/4731 ,  H04N5/78266 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/83

    摘要： An apparatus for recording and reproducing a digital video signal on and from a common recording medium by using the head configuration common to the conventional one while maintaining exchangeability with the current analog VTR. An analog video and audio signals are recorded and reproduced on and from an video track and an underlying deep-layer track, respectively, by means of magnetic heads (1a, 1b) and magnetic heads (2a, 2b). On the other hand, a digital video and audio signal is recorded and reproduced on and from two adjacent tracks by means of the magnetic heads (2a, 2b) for analog audio recording. During reproduction, an identification signal generating circuit (53) generates an identification signal for discriminating a recorded signal, and a control signal is PWM modulated with the identification signal and recorded on a control track by means of a magnetic head (4).

    摘要翻译： 一种用于在保持与当前模拟VTR的可交换性的同时，通过使用常规记录介质的公用头部配置在公共记录介质上记录和再现数字视频信号的设备。 通过磁头（1a，1b）和磁头（2a，2b）分别在视频轨道和下层深层轨道上记录和再现模拟视频和音频信号。 另一方面，数字视频和音频信号通过用于模拟音频记录的磁头（2a，2b）在两个相邻轨道上记录和再现。 在再现期间，识别信号产生电路（53）产生用于识别记录信号的识别信号，并且利用识别信号对控制信号进行PWM调制，并借助于磁头（4）将其记录在控制轨道上。