公开(公告)号：US4402070A

公开(公告)日：1983-08-30

申请号：US301212

申请日：1981-09-11

申请人： Hiroyuki Sugiyama ,  Isami Kaneda ,  Susumu Sakakibara ,  Ryozo Abe ,  Yasushi Sano

发明人： Hiroyuki Sugiyama ,  Isami Kaneda ,  Susumu Sakakibara ,  Ryozo Abe ,  Yasushi Sano

IPC分类号： G11B21/02 ,  G11B21/04 ,  H04N5/76 ,  G11B3/10

CPC分类号： G11B21/04 ,  Y10S358/907

摘要： A transfer control device for a reproducing transducer in a rotary recording medium reproducing apparatus having a reproducing transducer for reproducing recorded signals from a rotary recording medium and a driving motor for transferring said reproducing transducer on said rotary recording medium comprises a micro-computer having first and second output ports, where the first output port produces a signal of a pulse form which repeats high-level and low-level periods during a normal-speed transferring mode, and the second output port produces a continuous high-level or low-level signal according to the transferring mode so that a combination of a predetermined level is obtained between the output signal from the first output port, a square wave signal generating circuit applied with the output signal from the first output port of the micro-computer, where the square wave signal generating circuit is triggered to produce a predetermined square wave signal when applied with the signal of a pulse form and not triggered when applied with other signals of constant level, and a switching circuit applied with the output signal from the first and second output ports of the micro-computer, to switch over a plurality of input terminals according to the levels of the applied signals and pass the input terminal voltage through to an output side as an output voltage. The switching circuit supplies the output voltage thus obtained to the driving motor.

摘要翻译： 一种用于在具有用于再现来自旋转记录介质的记录信号的再现传感器和用于将所述再现传感器传送到所述旋转记录介质上的驱动电机的旋转记录介质再现装置中的再现传感器的传送控制装置包括：微型计算机， 第二输出端口，其中第一输出端口产生在正常速度传输模式期间重复高电平和低电平周期的脉冲形式的信号，并且第二输出端口产生连续的高电平或低电平信号 根据转移模式，在来自第一输出端口的输出信号和施加有来自微型计算机的第一输出端口的输出信号的方波信号产生电路之间获得预定电平的组合，其中正方形 当使用信号o时，触发波形信号产生电路以产生预定的方波信号 fa脉冲形式，并且当施加恒定电平的其他信号时不被触发，以及施加来自微型计算机的第一和第二输出端口的输出信号的开关电路，以根据微型计算机的第一和第二输出端口切换多个输入端子 施加的信号并将输入端电压通过输出侧作为输出电压。 开关电路将所获得的输出电压提供给驱动电机。

公开(公告)号：US4408312A

公开(公告)日：1983-10-04

申请号：US303982

申请日：1981-09-21

申请人： Hiroyuki Sugiyama ,  Isami Kaneda ,  Ryozo Abe ,  Susumu Sakakibara ,  Yasushi Sano

发明人： Hiroyuki Sugiyama ,  Isami Kaneda ,  Ryozo Abe ,  Susumu Sakakibara ,  Yasushi Sano

IPC分类号： G05D3/12 ,  G11B21/08 ,  G11B21/10 ,  H04N5/76

CPC分类号： G11B21/085

摘要： A rotary recording medium reproducing apparatus reproduces a rotary recording medium in which one and the other of first and second reference signals are alternately recorded every track turn between each track turn of a main information signal track. The reproducing apparatus comprises a reproducing transducer having a reproducing element for reproducing the main information signal and the first and second reference signals at both sides of the main information signal track from said rotary recording medium, where the reproducing transducer has a tracking control mechanism for controlling tracking of the reproducing element, a separation circuit for respectively separating the first and second reference signals from a signal reproduced by the reproducing transducer, a wave detection circuit for respectively wave-detecting the separated reference signals, a time constant circuit for eliminating an unwanted component of an output signal of the wave detection circuit and holding a required signal, a tracking control signal applying circuit for obtaining a tracking control signal from an output signal of the time constant circuit and applying the tracking control signal to the tracking control mechanism of the reproducing transducer, and an interrupting circuit provided at a stage before the time constant circuit, for interrupting transmission of the reproduced reference signals during a mode in which a tracking control operation is not performed.

摘要翻译： 旋转记录介质再现装置再现一个旋转记录介质，其中第一和第二参考信号中的一个和另一个在主信息信号轨道的每个轨道转弯之间的每个轨道转弯处被交替地记录。 该重放装置包括一个重放传感器，它具有一个再现元件，用于从所述旋转记录介质再现主信息信号和主信息信号轨道两侧的第一和第二参考信号，其中再现传感器具有用于控制的跟踪控制机构 跟踪再现元件，用于分离第一和第二参考信号与由再现换能器再现的信号的分离电路，用于分别波动检测分离的参考信号的波检测电路，用于消除不期望的分量的时间常数电路 的波形检测电路的输出信号并保持所需信号的跟踪控制信号施加电路，用于从时间常数电路的输出信号获得跟踪控制信号，并将跟踪控制信号施加到再现的跟踪控制机构 传感器，a 并且设置在时间常数电路之前的阶段的中断电路，用于在不执行跟踪控制操作的模式期间中断再现的参考信号的传输。

公开(公告)号：US4433402A

公开(公告)日：1984-02-21

申请号：US310767

申请日：1981-10-13

申请人： Isami Kaneda ,  Susumu Sakakibara ,  Yasushi Sano

发明人： Isami Kaneda ,  Susumu Sakakibara ,  Yasushi Sano

IPC分类号： G11B9/06 ,  G05D3/12 ,  G11B11/00 ,  G11B21/10

CPC分类号： G11B21/106

摘要： A reference signal detection circuit in a rotary recording medium reproducing apparatus has a reproducing transducer for reproducing an information signal recorded in a rotary recording medium and reference signals for tracking servo recorded for every predetermined period, from the rotary recording medium rotating at a predetermined rotational speed, and a tracking servo circuit for obtaining a tracking servo signal from the reference signals and performing a tracking servo operation according to the tracking servo signal thus obtained. The detection circuit further comprises a single rectifying and smoothing circuit for rectifying and smoothing the reproduced reference signals obtained for every predetermined period. The detection circuit has a lowpass filter characteristic wherein the cutoff frequency is within a frequency range between one third and twice the gain crossover frequency of the tracking servo loop.

摘要翻译： 旋转记录介质再现装置中的参考信号检测电路具有用于再现记录在旋转记录介质中的信息信号的再现传感器和用于以预定旋转速度旋转的旋转记录介质每隔预定周期记录的用于跟踪伺服的参考信号 以及跟踪伺服电路，用于从参考信号获得跟踪伺服信号，并根据所获得的跟踪伺服信号执行跟踪伺服操作。 该检测电路还包括一个整流和平滑电路，用于对每个预定周期获得的再现参考信号进行整流和平滑处理。 检测电路具有低通滤波器特性，其中截止频率在跟踪伺服环路的增益交叉频率的三分之一和两倍之间的频率范围内。

公开(公告)号：US4616353A

公开(公告)日：1986-10-07

申请号：US599941

申请日：1984-04-13

申请人： Isami Kaneda ,  Yasushi Sano

发明人： Isami Kaneda ,  Yasushi Sano

IPC分类号： H04N5/76 ,  G11B21/10 ,  H04N5/903

CPC分类号： G11B21/106 ,  Y10S358/907

摘要： A tracking servo circuit corrects for closed loop gain variations due to wear of the disc, the width of the electrode of the reproducing stylus, etc. The disc contains an information track bounded by servo tracks used to derive a tracking error signal. This tracking error signal is supplied to an AGC circuit after being filtered and detected. The gain of the AGC circuit decreases as the voltage level of the tracking error signal increases. The tracking error is also supplied to an electric-mechanical conversion system after an oscillatory signal of constant frequency and amplitude is added to it. The oscillator signal is used to stabilize the gain of the servo loop. The electric-mechanical conversion system corrects the position of the stylus in response to these signals.

摘要翻译： 跟踪伺服电路校正由于盘的磨损，再现触笔的电极的宽度等引起的闭环增益变化。该盘包含由用于导出跟踪误差信号的伺服轨道限定的信息轨道。 该跟踪误差信号经滤波和检测后提供给AGC电路。 AGC电路的增益随跟踪误差信号的电平增加而减小。 在增加恒定频率和振幅的振荡信号之后，跟踪误差也提供给机电转换系统。 振荡器信号用于稳定伺服环路的增益。 电动机械转换系统根据这些信号校正触控笔的位置。

公开(公告)号：US4380780A

公开(公告)日：1983-04-19

申请号：US243438

申请日：1981-03-13

申请人： Atsumi Hirata ,  Osamu Tajima ,  Isami Kaneda ,  Hiroyuki Sugiyama ,  Takashi Saito ,  Masafumi Mochizuki

发明人： Atsumi Hirata ,  Osamu Tajima ,  Isami Kaneda ,  Hiroyuki Sugiyama ,  Takashi Saito ,  Masafumi Mochizuki

IPC分类号： G11B17/049 ,  G11B17/04 ,  G11B19/10 ,  G11B23/03 ,  G11B5/012 ,  G11B5/016 ,  G11B5/52 ,  G11B23/02

CPC分类号： G11B17/049 ,  G11B19/10 ,  G11B23/0328

摘要： A reproducing apparatus reproduces a loaded disc-shaped recording medium derived from a case. The case comprises a jacket which has a space for accomodating the disc-shaped recording medium and an opening for allowing the disc-shaped recording medium to go in and out of the jacket, and a lid member inserted through the opening of the jacket for closing the opening of the jacket. The reproducing apparatus comprises an inserting opening through which the case is inserted, a turntable for rotating the disc-shaped recording medium, a clamping mechanism for clamping at least one of the disc-shaped recording medium or the lid member provided at the innermost part on the opposite side from the inserting opening with respect to the turntable, a detecting mechanism for detecting whether the disc-shaped recording medium is loaded within the reproducing apparatus, and an arresting mechanism provided at the vicinity of the inserting opening, for arresting the insertion of a jacket having the lid member into the reproducing apparatus and allowing the insertion of a jacket not having the lid member into the reproducing apparatus, by displacing according to the detecting operation of the above detecting mechanism. The arresting mechanism allows the insertion of the jacket having or not having the lid member into the reproducing apparatus in a state where the detecting mechanism is not performing a detecting operation.

摘要翻译： 再现装置再现从壳体导出的装载的盘形记录介质。 壳体包括具有用于容纳盘形记录介质的空间和用于允许盘形记录介质进出外壳的开口的外套，以及插入穿过外套的开口的盖构件，用于封闭 外套的开口。 再现装置包括插入壳体的插入开口，用于旋转盘形记录介质的转盘，用于夹持设置在最内部的盘形记录介质或盖构件中的至少一个的夹紧机构 与插入开口相对于转台的相对侧，用于检测盘形记录介质是否装载在再现装置内的检测机构，以及设置在插入孔附近的止动机构，用于阻止插入 通过根据上述检测机构的检测操作移位，将具有盖构件的护套设置到再现装置中并允许将不具有盖构件的护套插入再现装置。 阻止机构允许在检测机构不执行检测操作的状态下将具有或不具有盖构件的护套插入到再现装置中。

公开(公告)号：US5491562A

公开(公告)日：1996-02-13

申请号：US243085

申请日：1994-05-16

申请人： Isami Kaneda

发明人： Isami Kaneda

IPC分类号： G09G5/06 ,  G06T1/00 ,  G06T5/00 ,  H04N5/85 ,  H04N9/74 ,  H04N9/804 ,  H04N5/83 ,  H04N9/79

CPC分类号： H04N9/8042 ,  H04N5/85

摘要： A method of color data mapping in color video signal recording to a video disc. A predetermined different number of color data are mapped onto first and second color maps respectively. Each data is expressed by color gradation in different format between the maps. The format of the gradation in the first map is converted into the format of the gradation in the second map. A difference is taken between the gradation of the colors in the same format between the maps. The difference is then compared with a reference quantity. The color in the first map is judged as to whether it is the same as or close to the color in the second map in color solid if the difference is smaller than the reference quantity. The color data are then mapped onto a third color map onto which no color data is mapped, if the judgment is made.

摘要翻译： 彩色数据映像到视频光盘的彩色视频信号记录方法。 将预定的不同数量的颜色数据分别映射到第一和第二颜色图上。 每个数据以不同格式的地图之间的颜色渐变表示。 将第一地图中的灰度的格式转换为第二地图中的灰度的格式。 在地图之间的相同格式的颜色的灰度之间取得区别。 然后将差异与参考量进行比较。 如果差小于参考量，则判断第一地图中的颜色是否与第二地图中的颜色相同或接近颜色的固体中的颜色。 然后，如果进行判断，则颜色数据被映射到没有映射颜色数据的第三颜色图上。

公开(公告)号：US5990977A

公开(公告)日：1999-11-23

申请号：US845705

申请日：1997-04-25

申请人： Isami Kaneda ,  Yasuo Itoh

发明人： Isami Kaneda ,  Yasuo Itoh

IPC分类号： H04N5/78 ,  H04N5/262 ,  H04N5/775 ,  H04N5/85 ,  H04N5/91 ,  H04N9/74 ,  H04N9/804

CPC分类号： H04N9/74 ,  H04N9/8042 ,  H04N5/445 ,  H04N5/775 ,  H04N5/85

摘要： A picture switching apparatus for executing a fade-out/fade-in processing between adjacent video recording files includes a multiplier for multiplying a decoded video data with a multiplication coefficient (1-km), a multiplier for multiplying an output data of a data output circuit with a multiplication coefficient km and a data synthesizer for summing results of multiplication from the respective multipliers. The picture switching apparatus thus constructed performs the fade-out/fade-in processing without modification of the original video data for fading processing, by controlling km at the junction between the files such that the mining ratio of the color data for fading to a decoded color data is gradually increased/decreased.

摘要翻译： 一种用于在相邻视频记录文件之间执行淡出/淡入淡出处理的画面切换装置，包括用于将解码视频数据与乘法系数（1-km）相乘的乘法器，用于将数据输出的输出数据相乘的乘法器 具有乘法系数km的电路和用于对来自相应乘法器的乘法结果求和的数据合成器。 这样构成的图像切换装置通过控制文件之间的连接处的km，使得淡入淡出的彩色数据的采样率与经解码的图像切换装置进行淡入/淡出处理，而不改变用于衰落处理的原始视频数据 颜色数据逐渐增加/减少。