公开(公告)号：US5499145A

公开(公告)日：1996-03-12

申请号：US151790

申请日：1993-11-15

Applicant: Nobuo Azuma ,  Takashi Furuhata ,  Katsumi Takeda ,  Hiroaki Takahashi

Inventor： Nobuo Azuma ,  Takashi Furuhata ,  Katsumi Takeda ,  Hiroaki Takahashi

IPC: H04N5/7826 ,  G11B15/07 ,  G11B15/087 ,  G11B20/02 ,  G11B33/10 ,  H04N7/015 ,  H04N9/79 ,  H04N5/78

CPC classification number: H04N9/7921 ,  G11B15/07 ,  G11B15/087 ,  G11B33/10

Abstract: A magnetic recording apparatus of the rotary head helical scan type which can selectively record input information signals of a plurality of signal formats includes an input signal kind discriminating circuit, a controller for generating control output signals to set each section of the magnetic recording apparatus into a predetermined mode on the basis of a recording mode command, a recording signal processing circuit which is respectively switched to a predetermined mode in accordance with an output signal of the controller, and a servo control circuit, wherein there is an effect such that one magnetic recording apparatus can automatically record the input signals of a plurality of formats such as an NTSC signal, an HD signal, and the like in the optimum mode by a simple and easy to use method.

Abstract translation: 可以选择性地记录多种信号格式的输入信息信号的旋转磁头螺旋扫描型的磁记录装置包括输入信号种类识别电路，用于产生控制输出信号的控制器，用于将磁记录装置的每个部分设置为 基于记录模式命令的预定模式，根据控制器的输出信号分别切换到预定模式的记录信号处理电路和伺服控制电路，其中存在一个磁记录 装置可以通过简单易用的方法在最佳模式下自动记录诸如NTSC信号，HD信号等多种格式的输入信号。

公开(公告)号：US5323273A

公开(公告)日：1994-06-21

申请号：US738470

申请日：1991-07-31

Applicant: Nobuo Azuma ,  Takashi Furuhata ,  Yoshizumi Watatani ,  Hiroaki Takahashi ,  Katsumi Takeda

Inventor： Nobuo Azuma ,  Takashi Furuhata ,  Yoshizumi Watatani ,  Hiroaki Takahashi ,  Katsumi Takeda

IPC: G11B5/027 ,  G11B5/02 ,  G11B27/032 ,  G11B27/036 ,  H04N5/775 ,  H04N5/91 ,  H04N5/92 ,  H04N5/928

CPC classification number: G11B27/036 ,  H04N5/775 ,  H04N5/9202 ,  H04N5/928 ,  G11B2220/90 ,  G11B27/032

Abstract: An audio signal recording and playback apparatus of a magnetic recording and playback apparatus operates to record and play back multiple audio signals together with a video signal in first and second recording areas formed in correspondence to audio signals of first and second sets each consisting of two channels. Among input stereo audio signals in four channels at most, two-channel signals corresponding to left and right side information are recorded as main audio signals in the first recording area and remaining two-channel signals are recorded selectively as ancillary audio signals in the second record area.

Abstract translation: 磁记录和重放装置的音频信号记录和重放装置用于在第一和第二记录区域中记录和再现多个音频信号以及视频信号，所述第一和第二记录区域对应于由两个通道组成的第一和第二组的音频信号形成 。 在最多四个通道的输入立体声音频信号中，对应于左侧和右侧信息的双声道信号作为主音频信号被记录在第一记录区域中，并且剩余的双声道信号被选择性地记录在第二记录中作为辅助音频信号 区。

公开(公告)号：US5122885A

公开(公告)日：1992-06-16

申请号：US475963

申请日：1990-02-06

Applicant: Atsushi Yoshioka ,  Yoshizumi Watatani ,  Nobuo Azuma ,  Tadasu Otsubo ,  Shuichi Matsuo

Inventor： Atsushi Yoshioka ,  Yoshizumi Watatani ,  Nobuo Azuma ,  Tadasu Otsubo ,  Shuichi Matsuo

IPC: H04N5/92 ,  H04N7/01 ,  H04N9/79 ,  H04N9/797 ,  H04N9/80 ,  H04N9/83

CPC classification number: H04N9/832 ,  H04N9/797

Abstract: In a magnetic video recording/reproducing apparatus having a recording circuit for recording two kinds of video signals for different aspect ratios a.sub.1 and a.sub.2, where a.sub.1 >a.sub.2, a reproduced signal for aspect ratio a.sub.1 is subjected to a time-axis processing and then delivered to a monitor television having the aspect ratio a.sub.2 in order to avoid a picture on the monitor television from being so distorted as to be elongated vertically. During the time-axis processing, a Y/C interleave set-up processing and a time-axis variation correcting processing are also carried out as necessary. A reproduced signal for aspect ratio a.sub.2 is subjected to a time-axis processing and then delivered to a monitor television having the aspect ratio a.sub.1 in order to avoid a picture on the monitor television from being so distorted as to be elongated horizontally.

Abstract translation: 在具有用于记录用于不同宽高比a1和a2的两种视频信号的记录电路的磁性视频记录/再现装置中，其中a1> a2，对长宽比a1的再现信号进行时间轴处理，然后传送 具有纵横比a2的监视器电视，以避免监视器电视机上的图像变得垂直变形。 在时间轴处理期间，根据需要还进行Y / C交错建立处理和时间轴变化校正处理。 纵横比a2的再现信号经历时间轴处理，然后传送到具有纵横比a1的监视电视机，以避免监视电视机上的图像变得水平变窄。

公开(公告)号：US4581659A

公开(公告)日：1986-04-08

申请号：US564904

申请日：1983-12-23

Applicant: Nobuo Azuma ,  Kenji Satoh ,  Katsuo Mohri ,  Yoshinori Masuda

Inventor： Nobuo Azuma ,  Kenji Satoh ,  Katsuo Mohri ,  Yoshinori Masuda

IPC: H04N5/783 ,  G11B15/18 ,  G11B15/46 ,  G11B15/467

CPC classification number: G11B15/1875 ,  G11B15/1808

Abstract: A method and apparatus for reproducing information at variable speeds from a magnetic tape by correcting a deviation between at least one video track of the magnetic tape and a rotating head during a tape stop state of an intermittent drive for a noiseless slow-still picture in a video tape recorder using pilot signals. A series of pulses produced by a frequency generator of a capstan for feeding the tape is counted during the tape feeding state of an intermittent drive in order to detect a timing of the stopping of the tape feeding. As the count number equals a set value corresponding to a regular amount of feeding of the tape during the intermittent drive, the tape feeding is controlled to stop. A tracking error signal is produced from the pilot signals reproduced from the tape by the rotating head within the tape stop state of the intermittent drive and the set value for the next tape feeding of the intermittent drive is adjusted in response to the tracking error signal.

Abstract translation: 一种方法和装置，用于通过在磁带的至少一个视频轨道和旋转磁头之间的偏差中再现来自磁带的可变速度的信息，该方法和装置在用于无噪声慢静止图像的间歇驱动的磁带停止状态 录像机使用导频信号。 在间歇驱动的带馈送状态期间，计数由用于馈送带的绞盘的频率发生器产生的一系列脉冲，以便检测送带停止的定时。 由于计数值等于在间歇驱动期间对应于规定的送带量的设定值，因此控制送带被停止。 在间歇驱动的磁带停止状态下，通过旋转磁头从磁带再生的导频信号产生跟踪误差信号，并且响应于跟踪误差信号调整间歇驱动的下一个磁带馈送的设定值。

公开(公告)号：US4507690A

公开(公告)日：1985-03-26

申请号：US382104

申请日：1982-05-26

Applicant: Nobuo Azuma ,  Kenji Satoh ,  Katsuo Mohri ,  Takashi Furuhata

Inventor： Nobuo Azuma ,  Kenji Satoh ,  Katsuo Mohri ,  Takashi Furuhata

IPC: H04N5/7826 ,  G11B15/02 ,  G11B27/024 ,  G11B27/028 ,  H04N5/765 ,  H04N5/77 ,  H04N5/78

CPC classification number: G11B15/02 ,  G11B27/028 ,  H04N5/77 ,  G11B2220/90 ,  G11B27/024 ,  Y10S358/906

Abstract: A device for controlling consecutive recording of video information containing signals, on a magnetic recording medium in a magnetic recording and reproducing apparatus, fed from a video camera with variable time spacing. The device comprises a control switch rendered non-conductive or conductive when a pause switch in the magnetic recording and reproducing apparatus is actuated or released, and a member for initializing a sync signal generator in the video camera with a signal produced in synchronism with the rotation of a head carrying disc driving motor of the magnetic recording and reproducing apparatus, whereby energy consumption is lowered and synchronization between successive video information signals is attained rapidly during the consecutive recording of video information signals from the video camera.

Abstract translation: 一种用于控制在具有可变时间间隔的摄像机馈送的磁记录和再现装置中的磁记录介质上连续记录包含信号的视频信息的装置。 该装置包括当磁记录和再现装置中的暂停开关被致动或释放时呈现非导通或导通的控制开关，以及用于利用与旋转同步产生的信号来初始化摄像机中的同步信号发生器的构件 的磁记录和再现装置的磁头驱动电动机，由此能量消耗降低，并且在从摄像机连续记录视频信息信号期间快速获得连续的视频信息信号之间的同步。

公开(公告)号：US6115011A

公开(公告)日：2000-09-05

申请号：US868142

申请日：1997-06-03

Applicant: Yuji Sano ,  Tadayoshi Oikawa ,  Nobuo Azuma ,  Yuichiro Kimura ,  Masaji Ishigaki ,  Takashi Sasaki

Inventor： Yuji Sano ,  Tadayoshi Oikawa ,  Nobuo Azuma ,  Yuichiro Kimura ,  Masaji Ishigaki ,  Takashi Sasaki

IPC: G09G3/20 ,  G09G3/28 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/293 ,  G09G3/294 ,  G09G3/296

CPC classification number: G09G3/2927 ,  G09G3/2022 ,  G09G2320/0238 ,  G09G2320/0247 ,  G09G2320/0266

Abstract: A plasma display device is capable of controlling the brightness of the entire image on a screen over a wide range without impairing a predetermined number of display gradations determined by the dynamic range of an A/D converter, an analogue input circuit and the like. For this purpose, the plasma display device is provided with means for changing the discharge condition (number of discharge pulses, discharge voltage, discharge voltage waveform and the like) during priming discharging, which is effected for initialization, in accordance with the brightness control to control the brightness of light emission during image display.

Abstract translation: 等离子体显示装置能够在宽范围内在屏幕上控制整个图像的亮度，而不会损害由A / D转换器，模拟输入电路等的动态范围确定的预定数量的显示灰度。 为此，等离子体显示装置设置有用于根据亮度控制改变对初始化进行的启动放电期间的放电条件（放电脉冲数，放电电压，放电电压波形等）的装置， 在图像显示期间控制发光的亮度。

公开(公告)号：US5374955A

公开(公告)日：1994-12-20

申请号：US160806

申请日：1993-12-03

Applicant: Takashi Furuhata ,  Nobuo Azuma ,  Hiroki Mizosoe ,  Manabu Katsuki

Inventor： Takashi Furuhata ,  Nobuo Azuma ,  Hiroki Mizosoe ,  Manabu Katsuki

IPC: H04N9/04 ,  H04N9/09

CPC classification number: H04N9/045 ,  Y10S358/906

Abstract: Solid-state imaging elements each having a smaller number of pixels are employed to realize an imaging device for taking a high-definition picture which is four or more times larger in the number of pixels than each of the solid-state imaging elements, and also an apparatus for recording/playing back (or transmitting) the high-definition picture. A two-dimensional space which includes, at least, nH spatial sampling points in a horizontal direction and nV spatial sampling points (nV lines) in a vertical direction, totaling (nH.times.nV) spatial sampling points, is imaged under the condition that light is sensed at, at most, 1/2 of the sampling points of the two-dimensional space. Thus, the imaging device delivers as its output a video signal containing effective pixel information items which correspond to the light-sensed sampling points and which are, at most, (nH.times.nV)/2 in terms of the number of pixels.

Abstract translation: 采用具有较少像素数的固态成像元件来实现用于拍摄高于每个固态成像元件的像素数量的四倍或更多倍的高分辨率图像的成像装置，并且还 用于记录/播放（或发送）高分辨率图像的装置。 至少在水平方向上包括nH个空间采样点和垂直方向上的nV空间采样点（nV线）的二维空间（nHxnV）空间采样点在感测光的条件下被成像 最多在二维空间的采样点的1/2。 因此，成像装置输出视频信号，该视频信号包含对应于光感测采样点的有效像素信息项，并且对于像素数目至多为（nH×nV）/ 2。

公开(公告)号：US4809096A

公开(公告)日：1989-02-28

申请号：US6121

申请日：1987-01-23

Applicant: Nobuo Azuma ,  Hikaru Masui ,  Yoshizumi Watatani

Inventor： Nobuo Azuma ,  Hikaru Masui ,  Yoshizumi Watatani

IPC: G11B5/592 ,  G11B15/467 ,  G11B5/588

CPC classification number: G11B15/4672 ,  G11B15/4678 ,  G11B5/5922

Abstract: A tracking controlling device is provided which is suitable for a rotating head helical scanning-type magnetic video signal recording and reproducing apparatus in which pilot signals of a plurality of frequencies are recorded in advance on tracks on a magnetic tape such as to be superimposed on video signals, and the pilot signals are reproduced during reproduction so as to effect tracking control. This tracking controlling device comprises means for separating and detecting two reproducing pilot signals from both tracks adjacent to the track being scanned by the rotating head, a comparator for comparing the magnitude of the reproducing pilot signals from the adjacent tracks and for generating a binary PWM signal in accordance with the magnitude, and controlling means for controlling the rotation of a capstan motor for driving the magnetic tape using the tracking error signal converted into the form of the PWM signal obtained by the output of the comparator. The tracking error signal converted to the PWM signal is capable of directly switching over and controlling the driving circuit for the capstan motor.

Abstract translation: 提供了一种跟踪控制装置，其适用于旋转磁头螺旋扫描型磁视频信号记录和再现装置，其中预先将多个频率的导频信号记录在磁带上的轨道上以便叠加在视频上 信号，并且在再现期间再现导频信号，以便进行跟踪控制。 该跟踪控制装置包括用于从与由旋转头扫描的轨道相邻的两个轨道分离和检测两个再现导频信号的装置，用于比较来自相邻轨道的再现导频信号的幅度并用于产生二进制PWM信号的装置 以及控制装置，用于使用转换成由比较器的输出获得的PWM信号的形式的跟踪误差信号来控制用于驱动磁带的主导轴马达的旋转。 转换为PWM信号的跟踪误差信号能够直接切换并控制主导轴马达的驱动电路。

公开(公告)号：US4772975A

公开(公告)日：1988-09-20

申请号：US886417

申请日：1986-07-17

Applicant: Nobuo Azuma

Inventor： Nobuo Azuma

IPC: H04N5/783 ,  G11B15/18 ,  G11B15/467 ,  H04N5/91 ,  H04N5/937

CPC classification number: H04N5/937 ,  G11B15/1875 ,  G11B15/4673

Abstract: During still reproduction, slow-motion reproduction and the like reproduction mode in a magnetic reproducing apparatus, a magnetic tape is travelled intermittently at a standard travel speed, i.e., at the same tape speed as that for recording, and a video signal reproduced over a period during which the magnetic tape runs at the standard travel speed is written into an image memory. During the standard travel speed period of the magnetic tape, a magnetic head correctly traces recording tracks on the magnetic tape and so the video signal of less noise is stored in the image memory. The video signal stored in the image memory is read out to provide for reproduced still and slow-motion output signal.

Abstract translation: 在磁再现装置中的静止再现，慢动作再现等类似再现模式期间，磁带以标准行进速度，即以与用于记录的速度相同的磁带速度间歇地行进，并且通过 磁带以标准行驶速度运行的期间被写入图像存储器。 在磁带的标准行进速度期间，磁头正确地跟踪磁带上的记录轨迹，因此噪声较小的视频信号被存储在图像存储器中。 读出存储在图像存储器中的视频信号，以提供再现的静止和慢动作输出信号。

公开(公告)号：US4581658A

公开(公告)日：1986-04-08

申请号：US500368

申请日：1983-06-02

Applicant: Nobuo Azuma ,  Kenji Satoh

Inventor： Nobuo Azuma ,  Kenji Satoh

IPC: H04N5/783 ,  G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B21/10

CPC classification number: G11B15/087 ,  G11B15/1808 ,  G11B15/1875

Abstract: A variable-speed picture reproducing apparatus for obtaining noise-free slow-motion reproduction pictures suitable for use in a helical-scanning magnetic picture recording/reproducing system in which the tracking pilot signal is recorded along with the video signal on the video track. The apparatus include a drive for transporting the tape intermittently, a detecting arrangement for detecting that the tracking error signal derived from the pilot signal picked up during the intermittent tape transportation rises or falls across a predetermined level, and a control arrangement for performing tape stop control including a reversal braking for a capstan motor of the drive upon expiration of a delay time determined by a predetermined computation following the time point of the detection of the signal level.

Abstract translation: 一种用于获得适用于螺旋扫描磁图像记录/再现系统中的无噪声慢动作再现图像的可变速度图像再现装置，其中跟踪导频信号与视频信号一起被记录在视频轨道上。 该装置包括用于间歇地传送带的驱动器，用于检测在间歇磁带传送期间拾取的导频信号导出的跟踪误差信号在预定电平上升或下降的检测装置，以及用于执行磁带停止控制的控制装置 包括当在检测到信号电平的时间点之后由预定计算确定的延迟时间到期时，驱动器的主导轴电动机的反转制动。