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    • 12. 发明授权
    • Image recording/reproducing apparatus
    • 图像记录/再现装置
    • US07209631B2
    • 2007-04-24
    • US09861663
    • 2001-05-22
    • Yukinobu TadaHideo NishijimaKaneyuki OkamotoMasayuki Kijima
    • Yukinobu TadaHideo NishijimaKaneyuki OkamotoMasayuki Kijima
    • H04N5/76
    • H04N5/782G11B27/107G11B27/11G11B27/22G11B27/28G11B27/324G11B2220/65G11B2220/90Y10S358/908
    • A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape. When the television broadcasting signals are reproduced from the magnetic tape, reproduction is carried out while the commercial message portions are skipped, at the recording positions of the commercial message portions to the magnetic tape, on the basis of the information of the recording positions of the commercial message portions to the magnetic tape that are stored in the memory circuit.
    • 即使在广播模式相同的情况下也能辨别商业消息部分的视频记录/再现装置。 磁头将电视广播信号记录到磁带并再现来自该磁带的电视广播信号。 当通过记录/再现装置减少电视广播信号时,无音频部分检测器从电视广播信号中的音频信号中检测无音频部分。 商业消息(CM)部分检测器通过无音频部分检测器检测到的多个无音频部分之间的时间间隔检测电视广播信号中的商业消息部分,并且CM信息存储电路存储记录信息 由该商业消息部分检测器检测到的商业消息部分的位置到磁带。 当从磁带再现电视广播信号时,在将商业消息部分在商业消息部分的记录位置跳到磁带的同时,根据记录位置的信息,进行再现 商业消息部分存储在存储电路中的磁带上。
    • 13. 发明授权
    • Image recording/reproducing apparatus
    • 图像记录/再现装置
    • US06275646B1
    • 2001-08-14
    • US09079456
    • 1998-05-15
    • Yukinobu TadaHideo NishijimaKaneyuki OkamotoMasayuki Kijima
    • Yukinobu TadaHideo NishijimaKaneyuki OkamotoMasayuki Kijima
    • H04N576
    • H04N5/782G11B27/107G11B27/11G11B27/22G11B27/28G11B27/324G11B2220/65G11B2220/90Y10S358/908
    • A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape. When the television broadcasting signals are reproduced from the magnetic tape, reproduction is carried out while the commercial message portions are skipped, at the recording positions of the commercial message portions to the magnetic tape, on the basis of the information of the recording positions of the commercial message portions to the magnetic tape that are stored in the memory circuit.
    • 即使在广播模式相同的情况下也能辨别商业消息部分的视频记录/再现装置。 磁头将电视广播信号记录到磁带并再现来自该磁带的电视广播信号。 当通过记录/再现装置减少电视广播信号时,无音频部分检测器从电视广播信号中的音频信号中检测无音频部分。 商业消息(CM)部分检测器通过无音频部分检测器检测到的多个无音频部分之间的时间间隔检测电视广播信号中的商业消息部分,并且CM信息存储电路存储记录信息 由该商业消息部分检测器检测到的商业消息部分的位置到磁带。 当从磁带再现电视广播信号时,在将商业消息部分在商业消息部分的记录位置跳到磁带的同时,根据记录位置的信息,进行再现 将商业消息部分存储在存储电路中的磁带上。
    • 14. 发明授权
    • Tape running apparatus
    • 胶带运行装置
    • US06158682A
    • 2000-12-12
    • US512326
    • 2000-02-24
    • Masayuki KijimaHideo NishijimaKaneyuki OkamotoTakeo OhkouchiYukinobu Tada
    • Masayuki KijimaHideo NishijimaKaneyuki OkamotoTakeo OhkouchiYukinobu Tada
    • G11B15/093G11B15/22G11B15/46G11B15/48G11B15/54B65H59/38
    • G11B15/093G11B15/22G11B15/46G11B15/48G11B15/54
    • On the occasion of stopping the tape running at a high speed, a winding radius of the tape supply reel is detected to set the tape deceleration rate (a) on the basis of the detected winding radius of the supply reel. After the tape running speed is decelerated up to the allowable speed VL in the predetermined deceleration rate (a), the tape is stopped by effectuating the brake. Thereby, the tape can be driven at the speed higher than the allowable speed VL without generating any damage, enabling reduction of time required for the fast-forward/rewind operation. Moreover, application flexibility is improved by providing a couple of tape running modes at the first high speed V1 which is higher than the allowable speed VL and the second high speed V2 which is lower than the allowable speed VL. In addition, running of the tape can be ceased within the predetermined time t from the input of the stop command signal by specifying the maximum speed Vmax depending on the preset deceleration rate (a) and limiting the tape running speed with the maximum speed Vmax.
    • 在停止磁带高速运行的情况下,检测带供带盘的卷绕半径,以根据检测到的供带盘的卷绕半径设定带减速度(a)。 在磁带运行速度以预定减速率(a)减速到允许速度VL之后,通过实施制动来停止磁带。 因此,可以以高于允许速度VL的速度驱动带子,而不产生任何损坏,从而能够减少快进/快退操作所需的时间。 此外,通过在高于允许速度VL的第一高速V1和低于容许速度VL的第二高速V2提供一对带运行模式来提高应用灵活性。 此外,通过根据预设减速度(a)指定最大速度Vmax,以最大速度Vmax限制带运行速度,可以在从停止指令信号的输入起的预定时间t内停止带的运行。
    • 15. 发明授权
    • Image recording/reproducing apparatus
    • 图像记录/再现装置
    • US6002831A
    • 1999-12-14
    • US949335
    • 1997-10-14
    • Yukinobu TadaHideo NishijimaKaneyuki OkamotoMasayuki Kijima
    • Yukinobu TadaHideo NishijimaKaneyuki OkamotoMasayuki Kijima
    • G11B27/10G11B27/11G11B27/22G11B27/28G11B27/32H04N5/782H04N5/76
    • H04N5/782G11B27/107G11B27/11G11B27/22G11B27/28G11B27/324G11B2220/65G11B2220/90Y10S358/908
    • A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape. When the television broadcasting signals are reproduced from the magnetic tape, reproduction is carried out while the commercial message portions are skipped, at the recording positions of the commercial message portions to the magnetic tape, on the basis of the information of the recording positions of the commercial message portions to the magnetic tape that are stored in the memory circuit.
    • 即使在广播模式相同的情况下也能辨别商业消息部分的视频记录/再现装置。 磁头将电视广播信号记录到磁带并再现来自该磁带的电视广播信号。 当通过记录/再现装置减少电视广播信号时,无音频部分检测器从电视广播信号中的音频信号中检测无音频部分。 商业消息(CM)部分检测器通过无音频部分检测器检测到的多个无音频部分之间的时间间隔检测电视广播信号中的商业消息部分,并且CM信息存储电路存储记录信息 由该商业消息部分检测器检测到的商业消息部分的位置到磁带。 当从磁带再现电视广播信号时,在将商业消息部分在商业消息部分的记录位置跳到磁带的同时,根据记录位置的信息,进行再现 将商业消息部分存储在存储电路中的磁带上。
    • 16. 发明授权
    • Digital magnetic reproducing apparatus with variable tape speed
    • 具有可变磁带速度的数字磁再现装置
    • US5057949A
    • 1991-10-15
    • US421358
    • 1989-10-13
    • Atsuo SugaShigemitsu HiguchiHideo NishijimaKaneyuki OkamotoMasataka Sekiya
    • Atsuo SugaShigemitsu HiguchiHideo NishijimaKaneyuki OkamotoMasataka Sekiya
    • H04N5/92G11B5/588G11B5/592G11B15/18G11B15/467H04N5/783
    • G11B15/1875G11B15/4677G11B5/592
    • A magnetic recording and reproducing apparatus having a construction in which a digital signal including index signals recorded on a magnetic tape is reproduced and rotary magnetic heads are movable. The digital signal is reproduced by digital signal reproducing means including the rotary magnetic heads. A particular index signal among the index signals is detected by index signal detecting means. Further, the timing for reproducing the particular index signal is detected by timing detecting means. The rotary magnetic heads are moved and deviated in the direction of the rotary shaft of the rotary cylinder by rotary magnetic head position deviating means. Tape speed detecting means compares a reproduction clock with a reference clock and outputs a tape speed signal. First rotary magnetic head position deviation control means forms a control input for the rotary magnetic head position deviating means on the basis of the tape speed signal. Second rotary magnetic head position deviation control means forms the control input for the rotary magnetic head position deviating means on the basis of an output signal of the timing detecting means.
    • 具有这样的结构的磁记录和再现装置,其中再现包括记录在磁带上的索引信号的数字信号,旋转磁头是可移动的。 数字信号由包括旋转磁头的数字信号再现装置再现。 索引信号中的特定索引信号由索引信号检测装置检测。 此外,由定时检测装置检测用于再现特定索引信号的定时。 旋转磁头通过旋转磁头位置偏移装置在旋转磁盘的旋转轴的方向上移动和偏离。 磁带速度检测装置将再现时钟与参考时钟进行比较并输出磁带速度信号。 第一旋转磁头位置偏差控制装置基于带速度信号形成用于旋转磁头位置偏离装置的控制输入。 第二旋转磁头位置偏差控制装置基于定时检测装置的输出信号形成用于旋转磁头位置偏移装置的控制输入。