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    Tracking error detector with comparison of amplitude detected pilot signals leaking in from tracks adjacent to the target track
    2.
    发明授权
    Tracking error detector with comparison of amplitude detected pilot signals leaking in from tracks adjacent to the target track 失效
    跟踪误差检测器，与检测到的导频信号的幅度进行比较，导频信号从与目标轨道相邻的轨道泄漏

    公开(公告)号：US5754356A

    公开(公告)日：1998-05-19

    申请号：US612816

    申请日：1996-03-22

    申请人： Kenichi Honjo ,  Toshihiko Maruoka ,  Haruo Isaka ,  Makoto Gotou ,  Kei Ichikawa ,  Kiyokazu Hashimoto ,  Masafumi Shimotashiro

    发明人： Kenichi Honjo ,  Toshihiko Maruoka ,  Haruo Isaka ,  Makoto Gotou ,  Kei Ichikawa ,  Kiyokazu Hashimoto ,  Masafumi Shimotashiro

    IPC分类号： G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B5/02 ,  G11B27/10

    CPC分类号： G11B15/1875 ,  G11B15/4678

    摘要： A magnetic recording and reproducing apparatus includes: a recorder for recording information signals so as to form tracks obliquely on a magnetic tape, and for recording pilot signals so that the frequency may differ between different modes such as SP and LP; a reproducing head for reproducing recorded information; an error detecting circuit for comparing the level difference of pilot signals recorded in both tracks adjacent to the track to be scanned by there producing head and for outputting a tracking error signal; and a controller for controlling the feed of the magnetic tape so that the tracking error signal may be balanced. Preferably, in the LP mode, a pilot signal of a higher frequency than that used in the SP mode is recorded. In a tracking error detector for a magnetic recording and reproducing apparatus for detecting the pilot signal, the reproduced signals are sampled at a frequency at a common multiple of each pilot frequency, a pilot signal is detected, and a tracking error signal is output.

    摘要翻译： 一种磁记录和再现装置，包括：用于记录信息信号以便在磁带上倾斜地形成轨道并用于记录导频信号的记录器，使得频率在诸如SP和LP的不同模式之间可能不同; 用于再现记录信息的再现头; 误差检测电路，用于比较由所述制造头在与要扫描的轨道相邻的两个轨道中记录的导频信号的电平差，并输出跟踪误差信号; 以及控制器，用于控制磁带的馈送，使得跟踪误差信号可以被平衡。 优选地，在LP模式中，记录频率高于SP模式中使用的频率的导频信号。 在用于检测导频信号的磁记录和再现装置的跟踪误差检测器中，以每个导频的公倍数的频率对再生信号进行采样，检测导频信号，并输出跟踪误差信号。

    Delay circuit for changeably delaying an analog signal
    3.
    发明授权
    Delay circuit for changeably delaying an analog signal 失效
    用于可变延迟模拟信号的延迟电路

    公开(公告)号：US5361043A

    公开(公告)日：1994-11-01

    申请号：US047519

    申请日：1993-04-19

    申请人： Masafumi Shimotashiro ,  Kouiti Hayashi ,  Yoshio Higashida ,  Kiyokazu Hashimoto

    发明人： Masafumi Shimotashiro ,  Kouiti Hayashi ,  Yoshio Higashida ,  Kiyokazu Hashimoto

    IPC分类号： H03H11/18 ,  H03H11/20 ,  H03H11/26 ,  H03F3/54

    CPC分类号： H03H11/265

    摘要： A delay circuit is provided with an npn type of transistor of which a base is connected to an input terminal, a first constant current source through which a constant current flows from an emitter of the transistor to ground, a first capacitor arranged between the emitter of the transistor and an electric source terminal, a second capacitor C.sub.22 arranged between a collector of the transistor and an output terminal, a first resistor arranged between the emitter of the transistor and the output terminal, a second resistor arranged between the collector of the transistor and the electric source terminal. The constant current of the constant current source is changeable, and an emitter resistance of the transistor is changed depending on the constant current. Therefore, an analog signal applied to the input terminal is changeably delayed by coaction of the resistors, the capacitors and the emitter resistance adjusted by changing the constant current of the constant current source.

    摘要翻译： 延迟电路设置有npn型晶体管，其基极连接到输入端子，恒定电流通过其从晶体管的发射极流到地的第一恒流源，布置在晶体管的发射极之间的第一电容器， 所述晶体管和电源端子，布置在所述晶体管的集电极和输出端子之间的第二电容器C22，布置在所述晶体管的发射极和所述输出端子之间的第一电阻器，布置在所述晶体管的集电极和所述晶体管的集电极之间的第二电阻器， 电源端子。 恒定电流源的恒定电流是可变的，并且晶体管的发射极电阻根据恒定电流而改变。 因此，通过改变恒定电流源的恒定电流而调节的电阻器，电容器和发射极电阻的共同作用，施加到输入端子的模拟信号可变化地延迟。

    Timing recovering apparatus having window periods determined by period of clock signal
    4.
    发明授权
    Timing recovering apparatus having window periods determined by period of clock signal 失效
    具有由时钟信号周期确定的窗口周期的定时恢复装置

    公开(公告)号：US5490181A

    公开(公告)日：1996-02-06

    申请号：US391295

    申请日：1995-02-21

    申请人： Masafumi Shimotashiro ,  Kiyokazu Hashimoto ,  Yoshio Higashida ,  Koichi Hayashi

    发明人： Masafumi Shimotashiro ,  Kiyokazu Hashimoto ,  Yoshio Higashida ,  Koichi Hayashi

    IPC分类号： G11B20/10 ,  G11B20/14 ,  H03D3/24 ,  H04L25/49

    CPC分类号： G11B20/10055 ,  G11B20/10009 ,  G11B20/1403

    摘要： A timing recovering apparatus comprises an equalizer for equalizing a digital data signal subjected to interleaved NRZI such that the digital data signal has partial response (1, 0, -1), two comparators for comparing the equalized data signal with two different reference levels, two phase comparing portions for detecting phase difference between the outputs of the comparators and a reproduced clock signal separately, an adder for summing the outputs of the phase comparators, and a VCO for generating the reproduce clock signal in accordance with the output of the adder. This timing recovering apparatus performs phase comparing with two different phase comparators and PLL control is performed on the sum of the outputs of the two different phase comparators, so that the clock signal is not affected by data pattern of the data signal. An automatic slice apparatus comprises the equalizer for equalizing a digital data signal subjected to interleaved NRZI, and two comparators supplied with reference levels, and the timing recovering apparatus, detects amplitude of the output of the equalizer in response to the reproduced clock signal to compensate the reference levels.

    摘要翻译： 定时恢复装置包括均衡器，用于对经过交错NRZI的数字数据信号进行均衡，使得数字数据信号具有部分响应（1,0，-1），两个比较器，用于将均衡数据信号与两个不同的参考电平进行比较，两个比较器 相位比较部分，用于分别检测比较器的输出和再生时钟信号之间的相位差，用于对相位比较器的输出求和的加法器和用于根据加法器的输出产生再生时钟信号的VCO。 该定时恢复装置与两个不同的相位比较器进行相位比较，并且对两个不同相位比较器的输出之和执行PLL控制，使得时钟信号不受数据信号的数据模式的影响。 自动切片装置包括均衡器，用于对经过交织的NRZI的数字数据信号进行均衡，两个比较器被提供参考电平，定时恢复装置响应于再现的时钟信号检测均衡器的输出的幅度，以补偿 参考水平

    AUDIO/VIDEO INFORMATION RECORDING/REPRODUCING DEVICE AND METHOD THEREFOR
    8.
    发明申请
    AUDIO/VIDEO INFORMATION RECORDING/REPRODUCING DEVICE AND METHOD THEREFOR 有权
    音频/视频信息记录/再现设备及其方法

    公开(公告)号：US20080219644A1

    公开(公告)日：2008-09-11

    申请号：US12119128

    申请日：2008-05-12

    申请人： Masanori ITOH ,  Masafumi Shimotashiro

    发明人： Masanori ITOH ,  Masafumi Shimotashiro

    IPC分类号： H04N5/91

    CPC分类号： G11B20/1251 ,  G11B20/10527 ,  G11B27/034 ,  G11B27/036 ,  G11B2020/10537 ,  G11B2020/10759 ,  G11B2020/10916 ,  G11B2020/10962 ,  G11B2020/1224 ,  G11B2220/2562 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8205 ,  H04N9/8211

    摘要： An audio/video information recording/reproducing device capable of easily implementing a post-recording function on an optical disk by using even a low-cost disk drive having a comparatively low-speed seek time. When recording a video file, it is recorded on an optical disk continuously for a duration equivalent to more than three times a seek time. When recording dubbing audio, it is recorded continuously only with constant data size at the same time with the reproducing of the recorded video file, thereby enabling concurrent real-time continuous reproducing and recording. Accordingly, concurrent reproductions of a video file and an audio file are ensured when reproducing dubbing audio.

    摘要翻译： 一种音频/视频信息记录/再现装置，其能够通过使用甚至具有相对低速搜索时间的低成本磁盘驱动器而容易地在光盘上实现后记录功能。 当录制视频文件时，它连续记录在光盘上，持续时间等于寻道时间的三倍以上。 当录制转录音频时，它会随着录制的视频文件的再现而同时以恒定的数据大小连续录制，从而实现并发的实时连续再现和记录。 因此，当再现转录音频时，确保视频文件和音频文件的并发再现。

    Information recording apparatus and method, and information recording medium on which information is recorded by using them
    10.
    发明授权
    Information recording apparatus and method, and information recording medium on which information is recorded by using them 有权
    信息记录装置和方法以及使用它们记录信息的信息记录介质

    公开(公告)号：US07333713B1

    公开(公告)日：2008-02-19

    申请号：US10130920

    申请日：2000-11-28

    申请人： Masanori Ito ,  Masafumi Shimotashiro ,  Makoto Mitsuda ,  Tadashi Nakamura ,  Yasumori Hino

    发明人： Masanori Ito ,  Masafumi Shimotashiro ,  Makoto Mitsuda ,  Tadashi Nakamura ,  Yasumori Hino

    IPC分类号： H04N5/91 ,  H04B5/76

    CPC分类号： H04N5/9201 ,  H04N5/772 ,  H04N5/85

    摘要： In a disk camera, when additional information and moving picture information are managed as one file and recorded on an optical disk, useless area is minimized, thereby allowing effective use of recording capacity. A recording controlling part records continuously with respect to a logical block of the optical disk, at least one of input video and audio information in a packet format of a fixed length that is different from a data size of the logical block, and creates a data file for recording with respect to the logical block, additional information with respect to the video or audio information in the packet format of the fixed length. In this one data file, a fixed data size portion of the additional information is arranged in an area ahead of an area in which the video and audio information are arranged, and a variable data size portion of the additional information is arranged in an area behind the area in which the video and audio information are arranged.

    摘要翻译： 在磁盘摄像机中，当将附加信息和运动图像信息作为一个文件管理并记录在光盘上时，无用区域被最小化，从而有效地利用记录容量。 记录控制部分相对于光盘的逻辑块连续地记录以与逻辑块的数据大小不同的固定长度的分组格式的输入视频和音频信息中的至少一个，并创建数据 关于逻辑块的记录文件，关于固定长度的分组格式的视频或音频信息的附加信息。 在该一个数据文件中，附加信息的固定数据大小部分被布置在布置视频和音频信息的区域之前的区域中，并且附加信息的可变数据大小部分被布置在后面的区域中 视频和音频信息的排列区域。