公开(公告)号：US5760988A

公开(公告)日：1998-06-02

申请号：US322423

申请日：1994-10-13

申请人： Hiroya Abe ,  Hideo Nishijima ,  Kouji Kaniwa ,  Kouji Minabe ,  Yoshio Narita

发明人： Hiroya Abe ,  Hideo Nishijima ,  Kouji Kaniwa ,  Kouji Minabe ,  Yoshio Narita

IPC分类号： H04N5/783 ,  G11B5/588 ,  G11B15/467 ,  H04N5/7826 ,  G11B15/52 ,  G11B5/596

CPC分类号： G11B15/4675 ,  H04N5/7826

摘要： A tracking method and apparatus used in a helical scan magnetic recording/reproducing system is based on an automatic tracking control using an envelope detection signal of a reproduced signal. The tracking apparatus is provided with a circuit for controlling the rotation speed of a capstan motor which transports a magnetic tape, a level comparing circuit for making the comparison for the level of an envelope signal of the reproduced signal, a circuit for applying a predetermined deviation to the rotation speed in accordance with the result of comparison, a circuit for detecting a steady speed deviation between a recording apparatus and a reproducing apparatus from a speed deviation signal generated in the process of the automatic tracking control, and a circuit for correcting the speed deviation.

摘要翻译： 在螺旋扫描磁记录/再现系统中使用的跟踪方法和装置基于使用再现信号的包络检测信号的自动跟踪控制。 跟踪装置设置有用于控制传送磁带的主导轴马达的转速的电路，用于对再现信号的包络信号的电平进行比较的电平比较电路，用于施加预定偏差的电路 与根据比较结果的转速相对应地，根据在自动跟踪控制过程中产生的速度偏差信号检测记录装置和再现装置之间的稳定速度偏差的电路，以及用于校正速度的电路 偏差。

公开(公告)号：US5699370A

公开(公告)日：1997-12-16

申请号：US390574

申请日：1995-02-17

申请人： Kouji Kaniwa ,  Hideo Nishijima ,  Nobutaka Amada ,  Hiroo Okamoto ,  Takaharu Noguchi ,  Hiroaki Ono ,  Hitoaki Owashi ,  Takao Arai ,  Hiroya Abe ,  Kouji Minabe

发明人： Kouji Kaniwa ,  Hideo Nishijima ,  Nobutaka Amada ,  Hiroo Okamoto ,  Takaharu Noguchi ,  Hiroaki Ono ,  Hitoaki Owashi ,  Takao Arai ,  Hiroya Abe ,  Kouji Minabe

IPC分类号： G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B20/00 ,  G11B20/18 ,  H04N9/804 ,  H04N9/82 ,  H04N9/885

CPC分类号： G11B20/0084 ,  G11B15/087 ,  G11B15/1875 ,  G11B20/00007 ,  G11B20/00086 ,  H04N9/8042 ,  G11B15/4673 ,  G11B20/1833 ,  H04N9/8205 ,  H04N9/885

摘要： An information recording and reproduction apparatus for recording and reproducing the information supplied through the transmission line is capable of protecting the copyright by limiting the reproduction of the recorded information. A main information signal supplied through the transmission line and a deadline signal attached to the main information signal and representing the reproduction deadline of the main information signal are recorded and reproduced by a recording device and a reproduction device respectively. A temporal information signal representing the date and time is acquired. The deadline signal reproduced is compared with the temporal information signal acquired. The reproduction output of the main information signal is cut off in accordance with the comparison signal produced by the comparison. In the case where the temporal information has passed the deadline, the reproduction output of the main information signal is cut off.

摘要翻译： 用于记录和再现通过传输线提供的信息的信息记录和再现装置能够通过限制记录信息的再现来保护版权。 通过传输线提供的主信息信号和附加到主信息信号并表示主信息信号的再现期限的期限信号分别由记录装置和再现装置记录和再现。 获取表示日期和时间的时间信息信号。 将所再现的期限信号与获取的时间信息信号进行比较。 根据比较产生的比较信号，将主信息信号的再现输出切断。 在时间信息通过期限的情况下，主信息信号的再现输出被切断。

公开(公告)号：US5251074A

公开(公告)日：1993-10-05

申请号：US507870

申请日：1990-04-12

申请人： Kentaro Hamma ,  Yasunori Kobori ,  Hiroyuki Kimura ,  Yoshinori Okada ,  Shoji Ohno ,  Osamu Numata ,  Kotaro Kawamura ,  Hideo Nishijima ,  Naohiro Ozawa

发明人： Kentaro Hamma ,  Yasunori Kobori ,  Hiroyuki Kimura ,  Yoshinori Okada ,  Shoji Ohno ,  Osamu Numata ,  Kotaro Kawamura ,  Hideo Nishijima ,  Naohiro Ozawa

IPC分类号： G11B15/087 ,  G11B27/32 ,  H04N5/782

CPC分类号： H04N5/782 ,  G11B15/087 ,  G11B27/324

摘要： During the playback operation for freezing and storing a specific frame of a picture in a memory and thereafter printing the frame, the recording medium is turned reversely for a prescribed amount according to an instruction from a printer in response to the entry of the freeze command in order to accurately search the frame at the entry of the freeze, and thereafter the recording medium is played back in normal mode. The amounts of reverse turn and the successive forward turn in normal playback are counted and compared, and when the difference has become a prescribed value, a freeze signal is produced and the frame of the picture selected by the freeze command is stored in the memory and printed when required. This control method for use in a video print system is designed so that the recording medium is turned reversely for a prescribed amount according to an instruction from the printer and then stopped until the next command is entered.

摘要翻译： 在用于在存储器中冻结和存储图像的特定帧的再现操作中，之后打印该帧时，响应于冻结命令的输入，根据来自打印机的指令将记录介质反转规定量 为了在冻结的进入处准确地搜索帧，然后以正常模式重放记录介质。 对正常重放中的反向转动量和连续向前转动的数量进行计数和比较，并且当差值变为规定值时，产生冻结信号，并且由冻结命令选择的画面的帧被存储在存储器中， 需要时打印。 这种在视频打印系统中使用的控制方法被设计成使得记录介质根据来自打印机的指令反转规定的量，然后停止直到输入下一个命令。

公开(公告)号：US5138505A

公开(公告)日：1992-08-11

申请号：US454957

申请日：1989-12-22

申请人： Hideo Nishijima ,  Kaneyuki Okamoto ,  Katsuyuki Watanabe ,  Tomishige Yatsugi

发明人： Hideo Nishijima ,  Kaneyuki Okamoto ,  Katsuyuki Watanabe ,  Tomishige Yatsugi

IPC分类号： H04N5/7826 ,  G11B5/588 ,  G11B15/467 ,  G11B15/473 ,  G11B20/20

CPC分类号： G11B15/4733 ,  G11B15/4675 ,  G11B20/20 ,  G11B5/588

摘要： A tracking apparatus for a magnetic recording and playback device of a helical scan system including at least one audio head and at least one video head provided on a rotating cylinder for enabling recording and playback of an audio signal and a video signal onto and from a magnetic tape which is driven by a capstan motor. The tracking apparatus includes a tracker for detecting an audio tracking error of the audio head for an audio track of the magnetic tape and for generating a tracking compensation signal corresponding to the amount of audio tracking error, and a controller responsive to the tracking compensation signal for controlling the rotary phase of the capstan motor in accordance therewith so that the audio head correctly tracks the audio track of the magnetic tape and is controlled independently of control of the video head for video tracking error.

摘要翻译： 一种用于螺旋扫描系统的磁记录和重放装置的跟踪装置，包括至少一个音频头和设置在旋转圆柱上的至少一个视频头，用于使音频信号和视频信号能够从磁性记录和重放 磁带由主导轴电机驱动。 跟踪装置包括跟踪器，用于检测用于磁带的音频轨道的音频头的音频跟踪误差，并用于产生对应于音频跟踪误差量的跟踪补偿信号，以及响应于跟踪补偿信号的控制器 控制主导马达的旋转相位，使得音频头正确地跟踪磁带的音频轨道，并且独立于视频磁头的控制来控制视频跟踪误差。

公开(公告)号：US5063456A

公开(公告)日：1991-11-05

申请号：US389297

申请日：1989-08-03

申请人： Tadasu Horiuchi ,  Hideo Nishijima ,  Shoji Ohno

发明人： Tadasu Horiuchi ,  Hideo Nishijima ,  Shoji Ohno

IPC分类号： H04N5/91 ,  G11B27/30 ,  H04N9/82

CPC分类号： H04N9/8233 ,  G11B27/3054 ,  G11B2220/90

摘要： A video signal processor suitable for use with a VTR, the processor being provided with a circuit for eliminating inserted information signals other than a time code at a stage prior to the addition of a time code signal to the vertical blanking period of a video signal, providing accurate time code reading in a VTR equipped with a circuit for recording or reproducing the time code signal.

摘要翻译： 一种适合于与VTR一起使用的视频信号处理器，该处理器具有一个电路，该电路用于在添加时间码信号到视频信号的垂直消隐期之前的阶段除去除时间码之外的插入信息信号， 在装备有用于记录或再现时间码信号的电路的VTR中提供精确的时间码读取。

公开(公告)号：US5063437A

公开(公告)日：1991-11-05

申请号：US344402

申请日：1989-04-28

申请人： Hitoaki Owashi ,  Hiroyasu Ohtsubo ,  Masataka Sekiya ,  Kohji Minabe ,  Hideo Nishijima ,  Michio Masuda ,  Morito Rokuda

发明人： Hitoaki Owashi ,  Hiroyasu Ohtsubo ,  Masataka Sekiya ,  Kohji Minabe ,  Hideo Nishijima ,  Michio Masuda ,  Morito Rokuda

IPC分类号： H04N9/64 ,  H04N9/877

CPC分类号： H04N9/646 ,  H04N9/877 ,  Y10S348/91

摘要： This invention relates to a method and apparatus for processing a color video signal. The processing method separates an input composite color video signal into a luminance signal and chrominance signal, demodulates the separated chrominance signal into color difference signals, stores the separated luminance signal and color difference signals in a memory, reads out the luminance signal and color differnece signals in units of 1-field period from the memory, implements the extension or reduction of the field period length alternately for every certain number of fields in reading out the luminance signal and color difference signals from the memory thereby to fix the phase relation between a residual chrominance signal component in the luminance signal read out of the memory and a chrominance signal produced by modulating the color subcarrier with the color difference signals read out of the memory, implements an intended signal processing for the readout signals, modulates the color subcarrier with processed color difference signals to produce a chrominance signal, and mixes the chrominance signal with processed luminance signal to produce a composite color video signal.

摘要翻译： 本发明涉及一种处理彩色视频信号的方法和装置。 处理方法将输入的复合彩色视频信号分离为亮度信号和色度信号，将分离的色度信号解调为色差信号，将分离的亮度信号和色差信号存储在存储器中，读出亮度信号和色差信号 以存储器的1场期间为单位，在从存储器中读出亮度信号和色差信号时，对于每一定数量的场交替地实现场周期长度的扩展或缩小，从而固定残留的相位关系 从存储器中读出的亮度信号中的色度信号分量和通过从存储器读出的色差信号调制彩色副载波产生的色度信号，对读出的信号实现预期的信号处理，用经处理的颜色调制彩色副载波 差分信号产生色度信号，以及 将色度信号与经处理的亮度信号混合，产生复合彩色视频信号。

公开(公告)号：US4926361A

公开(公告)日：1990-05-15

申请号：US245208

申请日：1988-09-16

申请人： Hiroyasu Ohtsubo ,  Michio Masuda ,  Hideo Nishijima ,  Hitoaki Owashi ,  Masataka Sekiya ,  Kohji Minabe

发明人： Hiroyasu Ohtsubo ,  Michio Masuda ,  Hideo Nishijima ,  Hitoaki Owashi ,  Masataka Sekiya ,  Kohji Minabe

IPC分类号： H04N5/21

CPC分类号： H04N5/21

摘要： A digital noise reducer includes an addition circuit for adding a digital input video signal supplied at one input thereof and a signal supplied at the other input thereof and for outputting a resultant sum signal, a delay circuit for delaying the output signal of the addition circuit by an input unit period of the digital input video signal, a subtraction circuit supplied with the digital input video signal and an output signal of the delay circuit, the subtraction circuit forming and outputting a difference component signal for the digital input video signal and the output signal of the delay circuit, and a characteristic adjustment circuit for manipulating a signal characteristic of the difference component output of the subtraction circuit in accordance with the characteristic of the difference component signal outputted from the subtraction circuit and/or a characteristic of a digital output video signal outputted from the addition circuit and for outputting a resultant manipulated signal to the other input of the addition circuit.

摘要翻译： 数字降噪器包括：加法电路，用于将在其一个输入处提供的数字输入视频信号和在其另一个输入端提供的信号相加，并输出结果和信号;延迟电路，用于将加法电路的输出信号延迟 数字输入视频信号的输入单元周期，提供有数字输入视频信号的减法电路和延迟电路的输出信号，减法电路形成并输出用于数字输入视频信号和输出信号的差分分量信号 以及用于根据从减法电路输出的差分分量信号的特性和/或数字输出视频信号的特性来操纵减法电路的差分分量输出的信号特性的特性调整电路 从加法电路输出并输出合成操作 d向加法电路的另一个输入端发送信号。

公开(公告)号：US4757394A

公开(公告)日：1988-07-12

申请号：US792271

申请日：1985-10-28

申请人： Kaneyuki Okamoto ,  Hideo Nishijima ,  Isao Fukushima

发明人： Kaneyuki Okamoto ,  Hideo Nishijima ,  Isao Fukushima

IPC分类号： H04N5/7826 ,  G11B5/008 ,  G11B5/584 ,  G11B15/087 ,  G11B15/467 ,  H04N5/782

CPC分类号： G11B5/00878 ,  G11B15/087 ,  G11B15/4675

摘要： An auto-tracking apparatus of a magnetic recording/reproducing apparatus has a circuit for discriminating whether the audio signals recorded on a magnetic tape to be reproduced were recorded by audio rotary heads or a fixed head, and a circuit for selecting outputs of the audio rotary heads in the case of the Hi-Fi recorded magnetic tape by the audio rotary heads and outputs of the video rotary heads in the case where it is determined that the magnetic tape is the normal recorded tape by the fixed head on the basis of the result of the discrimination, and performs the auto-tracking on the basis of the selected outputs. With this arrangement, the auto-tracking can be carried out irrespective of whether the magnetic tape is the normal recorded tape by the conventional fixed head or the Hi-Fi recorded tape by the rotary heads.

摘要翻译： 磁记录/再现装置的自动跟踪装置具有用于鉴别记录在要再现的磁带上的音频信号是由音频旋转头还是固定头记录的电路，以及用于选择音频旋转的输出的电路 在通过固定头根据结果确定磁带是正常记录磁带的情况下，通过音频旋转头的Hi-Fi记录磁带和视频旋转磁头的输出的磁头 并且基于所选择的输出执行自动跟踪。 利用这种布置，可以执行自动跟踪，而不管磁带是通过常规固定头还是通过旋转头的Hi-Fi记录磁带的正常记录磁带。

公开(公告)号：US4605901A

公开(公告)日：1986-08-12

申请号：US486827

申请日：1983-04-20

申请人： Yasunori Kobori ,  Isao Fukushima ,  Hideo Nishijima ,  Yoshinori Masuda ,  Norihisa Yamamoto

发明人： Yasunori Kobori ,  Isao Fukushima ,  Hideo Nishijima ,  Yoshinori Masuda ,  Norihisa Yamamoto

IPC分类号： H02P29/00 ,  G11B15/46 ,  H03K9/06

CPC分类号： G11B15/46 ,  H03K9/06

摘要： A frequency-voltage converter comprising a feedback frequency generating means associated with controlled means, a saw-tooth wave generating means, a current source for the saw-tooth wave, pulse generating means and sample-and-hold means, the frequency-voltage converter being characterized by further provision of supply voltage switching means for changing the feedback frequency of the controlled means by changing the voltage to be supplied to the current source to change the current from the current source and to thereby the slope of the saw-tooth wave from the saw-tooth wave generating means.

摘要翻译： 一种频率 - 电压转换器，包括与受控装置相关的反馈频率发生装置，锯齿波产生装置，锯齿波的电流源，脉冲发生装置和采样保持装置，频率 - 电压转换器 其特征在于进一步提供电源电压切换装置，用于通过改变要提供给电流源的电压来改变受控装置的反馈频率，以改变来自电流源的电流，从而改变锯齿波的斜率 锯齿波发生装置。

公开(公告)号：US4521750A

公开(公告)日：1985-06-04

申请号：US482793

申请日：1983-04-07

申请人： Isao Fukushima ,  Kazuyoshi Kuwahara ,  Keiichi Itoigawa ,  Yasunori Kobori ,  Hideo Nishijima

发明人： Isao Fukushima ,  Kazuyoshi Kuwahara ,  Keiichi Itoigawa ,  Yasunori Kobori ,  Hideo Nishijima

IPC分类号： H04N5/78 ,  H03H11/04 ,  H03H19/00 ,  H03H11/06 ,  H03H11/40

CPC分类号： H03H19/004

摘要： A time constant circuit capable of switching the characteristic, which is realized by a combination of an equivalent resistor made up of a switched capacitor and an ordinary capacitor, comprises a capacitor of the switched capacitor or the time constant circuit connected in parallel to a series circuit including a switching device and an additional capacitor. The characteristic is switched by turning on and off the additional capacitor by the switching device. The direct connection of a plurality of equivalent resistors with a plurality of switched capacitors and ordinary capacitors makes up an equalizer. The capacitor making up a switched capacitor is connected with a switching device and an additional capacitor so that the frequency characteristic of the equalizer is switchable by turning on and off the switching device. Each of the capacitors making up the switched capacitors, the capacitors making up the time constant circuits and the additional capacitors has an end thereof grounded. All the elements are thus capable of being formed in the same integrated circuits.

摘要翻译： 能够通过由开关电容器和普通电容器构成的等效电阻的组合实现的能够切换特性的时间常数电路包括开关电容器的电容器或与串联电路并联连接的时间常数电路 包括开关装置和附加电容器。 通过开关装置接通和关闭附加电容器来切换特性。 多个等效电阻器与多个开关电容器和普通电容器的直接连接构成均衡器。 构成开关电容器的电容器与开关器件和附加电容器连接，使得均衡器的频率特性可通过接通和断开开关器件来切换。 构成开关电容器的每个电容器，构成时间常数电路的电容器和附加电容器的端部接地。 因此，所有元件能够形成在相同的集成电路中。