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公开(公告)号：KR100108089B1
公开(公告)日：1996-11-22
申请号：KR1019900010363
申请日：1990-07-09
Applicant: 삼성전자주식회사
IPC: G11B15/473
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公开(公告)号：KR1019960010029B1
公开(公告)日：1996-07-25
申请号：KR1019900010363
申请日：1990-07-09
Applicant: 삼성전자주식회사
IPC: G11B15/473
Abstract: The method prevents the degradation or deformation of the regenerated information, caused by the difference between the driving speed of the tape and the rotational speed of the drum when a mode switching occurs, by compensating the speed error of the drum. The method comprises the steps of: determining a mode switching requirement; classifying the switching mode by setting a correspondent mode flag; calculating the compensation amount of the drum speed; setting a pulse width of PWM signals for driving the drum according to the calculated compensation amount; determining if the rotational speed of a capstan, driven by the PWM signals, is stable; releasing the pulse width of the PWM signals if the rotational speed of the capstan is stable, and setting a normal reference speed of the drum with respect to a selected mode.
Abstract translation: 该方法通过补偿滚筒的速度误差来防止由模式切换发生时带的驱动速度与滚筒转速之间的差异引起的再生信息的劣化或变形。 该方法包括以下步骤：确定模式切换要求; 通过设置通信模式标志对切换模式进行分类; 计算滚筒速度的补偿量; 根据计算出的补偿量设定用于驱动滚筒的PWM信号的脉冲宽度; 确定由PWM信号驱动的绞盘的转速是否稳定; 如果主导轴的旋转速度稳定，则释放PWM信号的脉冲宽度，并且相对于所选择的模式设定鼓的正常参考速度。
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公开(公告)号：KR100100941B1
公开(公告)日：1996-06-20
申请号：KR1019900010362
申请日：1990-07-09
Applicant: 삼성전자주식회사
IPC: G11B15/665
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Patent Agency Ranking
公开(公告)号：KR1019950012190B1
公开(公告)日：1995-10-14
申请号：KR1019920001230
申请日：1992-01-28
Applicant: 삼성전자주식회사
IPC: G11B15/46
Abstract: The method comprises the steps of discriminating which one of a CPU, DFG, DPG, and CFG is applied to a microcomputer; discriminating that the signal is applied from either a first deck or a second deck; processing the signal; determining the time when a switching pulse is outputted, after delaying a proper time if the applied signal is a DPG signal; determining the time when a control pulse is outputted after the switching pulse is outputted; determining whether the outputted signal is sent to the first deck or the second deck; and transmitting the outputted signal to the determined deck.
Abstract translation: 该方法包括以下步骤：将CPU，DFG，DPG和CFG中的哪一个应用于微计算机; 识别信号是从第一甲板或第二甲板施加的; 处理信号; 如果所施加的信号是DPG信号，则在延迟适当时间之后确定切换脉冲的输出时间; 确定在输出切换脉冲之后输出控制脉冲的时间; 确定所输出的信号是否被发送到第一甲板或第二甲板; 并将所输出的信号发送到确定的甲板上。
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公开(公告)号：KR1019940005853B1
公开(公告)日：1994-06-24
申请号：KR1019920003016
申请日：1992-02-26
Applicant: 삼성전자주식회사
Inventor： 김철홍
IPC: G11B15/28
Abstract: The controller for generating the phase control signal by itself rather than reproducing it from the tape comprises a generator providing CFG signals with different frequencies according to the tape running mode, and a generator providing CTL signals dividing the frequency with different division ratio according to the tape running mode, and having the constant frequency at each mode.
Abstract translation: 用于自己生成相位控制信号而不是从磁带再现的控制器包括根据磁带运行模式提供具有不同频率的CFG信号的发生器，以及根据磁带提供按照不同分频比对CTL分频的CTL信号的发生器 运行模式，并且在每种模式下具有恒定的频率。
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公开(公告)号：KR1019940002763A
公开(公告)日：1994-02-19
申请号：KR1019920013003
申请日：1992-07-21
Applicant: 삼성전자주식회사
Inventor： 김철홍
IPC: G11B27/02
Abstract: 본 발명은 8mm 포맷의 VISS방식에 관한 것으로서, 8mm포맷에서 마이크로프로세서로부터 ATF방식을 위한 주파수 생성용 펄스신호를 입력받아 각각 조합하면서 4가지의 주파수를 생성하는 주파수발생부와, 상기의 주파수 발생부로부터의 4가지 주파수를 녹화모드시 테이프에 기록하되 바이어스 전원을 온/오프시키면서 진폭을 변화시키면서 콘트롤신호로 일정시간씩 기록하는 마이크로프로세서와, 상기 테이프에 기록된 4가지 주파수가 재생모드시 또는 특수재생시 저역통과필터를 경유하여 혼합기로 전달될 때 주파수의 진폭을 검출하여 대응하는 DC전압치를 산정하여 상기 마이크로프로세서로 공급하는 엔벨로프들로 구성함으로써 8mm포맷의 ATF(Automatic Tracking Finding) 방식에서 사용하는 4가지 주파수(f1),(f2),(f3),(f4)의 진폭을 변환시키면서 녹화한 후 재생모 드시 이를 검출하여 콘트롤신호로 이용하도록 한 것이다.
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