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    Apparatus and method of recording and reproducing a colour video signal
    3.
    发明公开
    Apparatus and method of recording and reproducing a colour video signal 失效
    装置和记录方法和再现彩色视频信号。

    公开(公告)号：EP0540348A2

    公开(公告)日：1993-05-05

    申请号：EP92309956.8

    申请日：1992-10-30

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Adachi, Makoto

    IPC分类号： H04N9/80 ,  H04N9/88 ,  H04N9/81 ,  H04N9/79

    CPC分类号： H04N9/89 ,  H04N9/797 ,  H04N9/81 ,  H04N9/88

    摘要： A video signal recording and reproducing apparatus in accordance with the present invention includes A/D converters (1-3), a shuffling circuit (5) and magnetic heads (A1, A2, B1, B2). The A/D converters (1-3) A/D-convert a luminance signal Y and color difference signals P B and P R included in a video signal. The shuffling circuit (5) divides each A/D converted data into first and second channels and further divides the first and second channels into data of a first segment including the color difference signal P R and data of a second segment including the color difference signal P B . The data of the first segments of the first and second channels are recorded on a magnetic tape with a spacing of one track by the magnetic heads (A1 and A2), data of the second segment of the first channel is recorded by the magnetic head (B1) on a portion between the tracks where the first segments are recorded, and data of the second segment of the second channel is recorded on a portion adjacent to the track where the first segment of the second channel is recorded. In a hi-vision VTR, it is possible to prevent an image of improper or poor hues due to differences in characteristics between the channels and enhance a capability of dropout compensation.

    摘要翻译： 用在本发明中雅舞蹈的视频信号记录和再现设备包括：A / D转换器（1-3），一个混洗电路（5）和磁头（A1，A2，B1，B2）。 所述A / D转换器（1-3）A / D-转换亮度信号Y和色差信号PB和包括在视频信号PR。 混洗电路（5）将每个A / D转换后的数据到第一和第二通道和进一步将第一和第二通道为第一链段包含色差信号PR和包括该色差信号PB的第二分段的数据的数据 ， 所述第一和第二通道的所述第一部分的数据被记录在磁带上的与由所述磁头（A1和A2）一个磁道的间隔，所述第一信道的所述第二分段的数据由磁头记录（ B1）上，其中所述第一区段被记录在磁迹，并且所述第二信道的所述第二分段的数据之间的部分被记录在相邻于所述第二通道的所述第一区段被记录在轨道的部分。 在一个高清晰VTR，它能够防止不正确的或差的色调的图像由于不同的信道之间的特性和提高的漏码补偿的能力。

    Apparatus for demodulating subnyquist sampled video signal and demodulating method therefor
    4.
    发明公开
    Apparatus for demodulating subnyquist sampled video signal and demodulating method therefor 失效
    用于解调子取代视频信号的装置及其解调方法

    公开(公告)号：EP0337496A3

    公开(公告)日：1992-06-10

    申请号：EP89106869.4

    申请日：1989-04-17

    申请人： SANYO ELECTRIC CO., LTD.

    发明人： Mizutani, Yosuke ,  Asano, Takehiko ,  Yanase, Syuji ,  Kitagawa, Shinichiro ,  Yamashita, Akihiko

    IPC分类号： H04N9/79 ,  H04N9/87

    CPC分类号： H04N9/7904 ,  H04N9/797 ,  H04N9/87 ,  H04N9/88

    摘要： An apparatus (MD) for reproducing, by a low-frequency replacement method, a noise-free high definition video (MUSE) signal obtained by band-compressing the high definition video signal in a time-compressed integration Sub-Nyquist encoding system so as to include no aliasing noise in a low-frequency component below 4 MHz. This reproducing apparatus includes a converter (3) for converting a reproduced or received MUSE signal into digital data and a memory (7) for outputting feedback data in which data preceding by two fields and data preceding by four fields with respect to the current field are alternately arranged, a circuit (6) for replacing/non-replacing the data preceding by four fields by first data corresponding to the current field data from the current field data and the feedback data and deriving a data train in which the first data and the data preceding by two fields are alternately arranged. Output from the data train deriving circuit is employed to be converted to composite data by a mixture 11, and a circuit (LC) for replacing the low-frequency component of the current field data or the first data with the low-frequency component of the composite data. The reproducing apparatus further includes a circuit (15, 18, 19; 15) for inhibiting this low-frequency replacement as well as replacement of the data preceding by four fields and the first data upon generation of noise such as dropout in the reproduced MUSE signal.

    DIGITAL BROADCAST RECEIVING APPARATUS, DIGITAL BROADCAST RECORDING METHOD AND DIGITAL BROADCAST REPRODUCING METHOD
    8.
    发明公开
    DIGITAL BROADCAST RECEIVING APPARATUS, DIGITAL BROADCAST RECORDING METHOD AND DIGITAL BROADCAST REPRODUCING METHOD 审中-公开
    DIGITALAUSSTRAHLUNGSEMPFANGSVORRICHTUNG，DIGITALAUSSTRAHLUNGSAUFZEICHNUNGSVERFAHREN UND DIGITALAUSSTRAHLUNGSWIEDERGABEVERFAHREN

    公开(公告)号：EP2099218A1

    公开(公告)日：2009-09-09

    申请号：EP06834246.8

    申请日：2006-12-07

    申请人： Panasonic Corporation

    发明人： SUEYOSHI, Hiroki

    IPC分类号： H04N5/76 ,  H04N5/765 ,  H04N7/173

    CPC分类号： H04N21/4334 ,  G11B27/105 ,  G11B27/34 ,  H04N5/76 ,  H04N9/8205 ,  H04N9/88 ,  H04N9/89 ,  H04N21/41407 ,  H04N21/42607 ,  H04N21/4325 ,  H04N21/44209

    摘要： A digital broadcast receiving apparatus wherein even if a digital broadcast is received and recorded under a bad reception environment, good reproduction and display of the digital broadcast can be achieved with no feeling of unsatisfaction or unpleasantness occurring to the user. In this apparatus, an OFDM demodulating part (3) performs OFDM demodulation and error correction of one-segment broadcast signals to determine whether the reception thereof is normal or abnormal, and then adds TEI in accordance with a determination result to a TS packet. An analyzing part (11) analyzes the TEI to determine whether the recording of the broadcast program is normal or abnormal. A recording apparatus (12) records the TS packet. A main display part (7) displays an image and further displays whether the recording of the broadcast program is normal or abnormal.

    摘要翻译： 一种数字广播接收装置，其中即使在恶劣的接收环境下接收和记录了数字广播，也可以在没有感觉到用户不满意或不愉快的情况下实现数字广播的良好再现和显示。 在该装置中，OFDM解调部（3）对一段广播信号进行OFDM解调和纠错，以确定其接收是正常还是异常，然后根据TS分组的确定结果添加TEI。 分析部分（11）分析TEI以确定广播节目的记录是正常还是异常。 记录装置（12）记录TS包。 主显示部（7）显示图像，并进一步显示广播节目的记录是正常还是异常。

    VIDEORECORDER
    9.
    发明授权
    VIDEORECORDER 失效
    视频录像机

    公开(公告)号：EP0587631B1

    公开(公告)日：1997-09-03

    申请号：EP92910976.7

    申请日：1992-05-29

    申请人： DEUTSCHE THOMSON-BRANDT GMBH

    发明人： DUMONT, Frank ,  RAUSER, Horst-Werner

    IPC分类号： H04N9/79 ,  H04N9/88

    CPC分类号： H04N9/7908 ,  H04N9/88

    摘要： A VHS video recorder includes in the playback path a comb filter with a two-line delay line to reduce cross colour. The two-line delay causes colour distortion during playback, especially in vertical black and white colour transitions. The aim is to reduce such distortions without using extensive circuitry. A line-delay line used in playback to suppress interference or to compensate for signal loss is connected in recording mode to the luminance signal path (Y).

    Video signal recording and playback apparatus
    10.
    发明公开
    Video signal recording and playback apparatus 失效
    装置，用于记录和再现视频信号。

    公开(公告)号：EP0663780A3

    公开(公告)日：1995-11-15

    申请号：EP95300227.6

    申请日：1995-01-13

    申请人： VICTOR COMPANY OF JAPAN, LIMITED

    发明人： Yamada, Hiroshi

    IPC分类号： H04N9/797 ,  H04N9/83

    CPC分类号： H04N7/007 ,  H04N5/7826 ,  H04N9/7921 ,  H04N9/83 ,  H04N9/832 ,  H04N9/87 ,  H04N9/8722 ,  H04N9/88

    摘要： A video signal recording and playback apparatus which is compatible with both a conventional television system signal and a wide-screen television system signal, such as PAL and PALplus video signals, has a helper signal demodulator (81) and helper signal remodulation circuit (84), respectively connected to input and output sides of a conventional video tape recorder (82, 83). The demodulator serves to demodulate a modulated helper signal contained in the wide-screen system signal, to obtain a baseband-state helper signal which is recorded and reproduced through a luminance signal processing system of a video tape recorder together with the luminance signal component of the video signal, while the remodulation circuit serves to modulate the playback baseband-state helper signal, to recover a modulated helper signal which can be utilized to compensate the playback video signal to achieve enhanced vertical resolution of a resultant display picture.