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公开(公告)号：US4413291A
公开(公告)日：1983-11-01
申请号：US306399
申请日：1981-09-28
IPC分类号： G11B15/16 , G11B15/675 , G11B15/00
CPC分类号： G11B15/16 , G11B15/675
摘要： A cassette tape player-recorder of slot-in type which includes first detecting means for detecting the insertion of cassette into the slot, second detecting means for detecting correct placement of the inserted cassette at the operable position, a reset signal generator for producing a reset signal when a time longer than a predetermined period lapses from the insertion of the cassette into the slot until the correct positioning of the cassette at the operable position, and a cassette eject controller for ejecting the cassette in response to the reset signal. The cassette tape player-recorder can avoid malfunction thereof and damage of the cassette.
摘要翻译： 一种插槽式盒式磁带播放器，包括用于检测盒插入插槽的第一检测装置，用于检测插入的盒子在可操作位置的正确放置的第二检测装置，用于产生复位的复位信号发生器 当时间长于预定时间的时间从盒子插入插槽中经过，直到盒子正确地定位在可操作的位置，以及盒弹出控制器，用于响应于复位信号弹出盒子。 盒式磁带录音机可以避免故障及磁带盒的损坏。
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公开(公告)号：US4580179A
公开(公告)日：1986-04-01
申请号：US602103
申请日：1984-04-23
CPC分类号： G11B27/22 , G11B15/02 , G11B15/087 , G11B27/107 , G11B2220/90
摘要： During forward cue operation, clock pulses are counted until a predetermined number indicating a blank tape portion. Forward cue continues with only audio pulses being counted until a predetermined number have been counted indicating the next recorded tape portion. Reverse scan is then performed until the blank portion is again detected, and the machine is then switched to play mode.
摘要翻译： 在正向提示操作期间，时钟脉冲被计数直到指示空白带部分的预定数字。 正向提示继续，只有音频脉冲被计数，直到已经计数了预定数量，指示下一个记录的磁带部分。 然后执行反向扫描，直到再次检测到空白部分，然后将机器切换到播放模式。
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公开(公告)号：US4441127A
公开(公告)日：1984-04-03
申请号：US352435
申请日：1982-02-25
摘要： A tape drive for a magnetic tape recording and reproducing system. Slackening of the tape is prevented and a stable running tape is assured each time the system is switched to a normal running mode. The take-up reel motor is delayed until the roller which presses the tape against the capstan is in its pressing position and until the magnetic head is pressed against the tape in its record or reproduce position.
摘要翻译： 用于磁带记录和再现系统的磁带机。 每次系统切换到正常运行模式时，防止磁带的松弛，并且确保稳定的运行磁带。 收纸卷轴电机被延迟，直到将压带压靠在绞盘上的辊处于其按压位置，直到磁头在其记录或再现位置被压靠在磁带上。
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4.发明授权Method for selecting desired piece of information recorded in magnetic tape mounted in magnetic tape recorder and/or reproducer 失效用于选择记录在安装在磁带录像机和/或再现器中的磁带中的所需信息的方法
公开(公告)号：US4551774A
公开(公告)日：1985-11-05
申请号：US660244
申请日：1984-10-12
CPC分类号： G11B15/005 , G11B27/22
摘要： A method for selecting a desired piece of information recorded in a magnetic tape mounted in a magnetic tape recorder and/or reproducer while reproducing the information, the magnetic tape recorder and/or reproducer having a magnetic head, a tape transport, and a mechanism controller adapted to actuate the magnetic head and the tape transport to perform selectively one of mode operations including PLAY, CUE and RVW mode operations. The method comprises a first step of causing the mechanism controller to perform the CUE or RVW mode operation while detecting the output signal from the magnetic head to find a leading edge of an information carrying tape portion, a second step of causing the mechanism controller to perform the PLAY mode operation which is initiated from a tape portion adjacent to and upstream of the leading edge of the information carrying tape portion for a certain period after finding the leading edge, a third step of causing the mechanism controller to repeat the first and second steps until a manual stop command is given during the period, and a fourth step of causing the mechanism controller to perform the PLAY mode operation even after the period in case a manual stop command is given during the period.
摘要翻译： 一种用于在再现信息时选择记录在安装在磁带录像机和/或再现器中的磁带中的所需信息的方法，具有磁头的磁带录音机和/或再现器，磁带传送和机构控制器 适于致动磁头和磁带传送以选择性地执行包括PLAY，CUE和RVW模式操作的模式操作之一。 该方法包括使机构控制器在检测来自磁头的输出信号以发现信息携带带部分的前沿的同时执行CUE或RVW模式操作的第一步骤;使机构控制器执行的第二步骤 在发现前沿之后的某段时间内，从信息载带带部分的前端附近和上游的带部分开始的播放模式操作;使机构控制器重复第一和第二步骤的第三步骤 直到在该期间给出手动停止命令，以及第四步骤，即使在该期间中给出手动停止命令的期间之后，也使机构控制器执行显示模式操作。
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公开(公告)号：US4463393A
公开(公告)日：1984-07-31
申请号：US344691
申请日：1982-02-01
IPC分类号： G11B15/087 , G11B15/02 , G11B27/00 , G11B27/22 , G11B15/48
CPC分类号： G11B27/007 , G11B27/22 , G11B2220/90
摘要： A repeat playback circuit device for use in a tape recorder in which the tape recorder is prevented from jumping again into a inter-music detection mode before the beginning of a desired segment of music is detected. During a normal play operation, pulses from an oscillator source are applied to the clock input of a counter while pulses indicative of the presence of a segment of music are applied to the clear input of the counter to thus prevent the counter from reaching a predetermined count. At the end of the segment of music, the pulses applied to the clear input of the counter are removed, whereupon the counter can then reach the predetermined count. When the counter does in fact reach the predetermined count, the tape recorder is set to the rewind mode where it remains until a blank segment is detected, at which time the tape recorder is placed in the play mode. The counter is set to be ready to detect a blank portion on the tape at the beginning of a segment of music when in the play mode.
摘要翻译： 一种在磁带记录器中使用的重复播放电路装置，其中在检测到期望的音乐段之前，防止磁带录音机再次进入音乐间检测模式。 在正常播放操作期间，来自振荡器源的脉冲被施加到计数器的时钟输入，而指示音乐段的存在的脉冲被施加到计数器的清除输入，从而防止计数器达到预定计数 。 在音乐段的末尾，施加到计数器的清除输入的脉冲被去除，于是计数器然后可以达到预定的计数。 当计数器实际上达到预定计数时，磁带录音机被设置为倒带模式，直到检测到空白片段，此时磁带录音机处于播放模式。 当处于播放模式时，计数器被设置为准备检测音乐段开头的磁带上的空白部分。
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公开(公告)号：US4423443A
公开(公告)日：1983-12-27
申请号：US306398
申请日：1981-09-28
CPC分类号： G11B15/444 , G11B15/02 , G11B15/093
摘要： An automatic-reversing tape deck arranged such that the magnetic tape advancing direction is automatically reversed when the tape is wholly wound during operation and then the operation is continued with the tape being advanced in the reversed direction, in which tape-advancement-direction changing signals are repeatedly generated by a circuit if the tape gets unable to advance because of a certain failure or accident, and the tape advancing operation is stopped when several tape-advancement-direction changing signals are counted by a counter. In this tape deck, wasteful power dissipation and harmful heat generation in the mechanism for changing the tape-advancement-direction can be avoided.
摘要翻译： 一种自动反转磁带机架，其布置成使得当磁带在操作期间完全卷绕时磁带前进方向自动反转，然后在磁带沿相反方向前进的情况下继续操作，其中磁带前进方向改变信号 如果磁带由于某种故障或事故而无法前进，则由电路重复地产生，并且当通过计数器计数几个带前进方向改变信号时磁带前进操作停止。 在这种磁带机上，可以避免用于改变磁带前进方向的机构中浪费的功率耗散和有害的热量产生。
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公开(公告)号：US4404604A
公开(公告)日：1983-09-13
申请号：US254326
申请日：1981-04-14
IPC分类号： G11B15/02 , G11B15/087 , G11B27/22 , G11B15/52 , G11B19/10
CPC分类号： G11B27/22 , G11B15/026 , G11B15/087
摘要： A device for accurately detecting non-recorded segments on a magnetic tape in fast-forward and rewind modes. The output of a magnetic head is coupled through an equalizer amplifier and limiter amplifier to convert it to a digital pulse signal which is applied to the clear input of a counter the clock input of which is coupled to an oscillator. A higher order output bit is connected to the clock input of a flip-flop which controls solenoids for setting the fast-forward and rewind modes. When no pulses of the digital pulse signal are received within a predetermined period, indicative of the presence of a non-recorded segment, the counter produces an output signal which operates the flip-flop.
摘要翻译： 一种用于在快退和倒带模式下精确检测磁带上的未记录段的装置。 磁头的输出通过均衡器放大器和限幅放大器耦合，以将其转换为数字脉冲信号，该数字脉冲信号被施加到其时钟输入耦合到振荡器的计数器的清零输入。 更高阶的输出位连接到触发器的时钟输入，该触发器控制用于设置快进和快退模式的螺线管。 当在预定时段内没有接收到数字脉冲信号的脉冲时，指示存在未被记录的段，计数器产生操作触发器的输出信号。
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