Constant speed reel driven magnetic tape in cue or review mode
    1.
    发明授权
    Constant speed reel driven magnetic tape in cue or review mode 失效
    恒速卷轴驱动磁带在提示或查看模式

    公开(公告)号:US4472749A

    公开(公告)日:1984-09-18

    申请号:US322246

    申请日:1981-11-17

    IPC分类号: H04N5/783 G11B15/46 G11B19/24

    CPC分类号: G11B15/46

    摘要: A magnetic tape reproducing apparatus in a rotary head VTR is arranged such that when reels are rotatably driven to perform a cue play and a review play, the speed of a motor driving the reels is controlled by a speed control of the motor itself and in accordance with a control signal reproduced from a magnetic tape, thereby making the speed of the magnetic tape approximately constant during the cue play and the review play.

    摘要翻译: 旋转磁头VTR中的磁带再现装置被布置成使得当卷轴被旋转驱动以执行提示播放和回放播放时,驱动卷轴的电动机的速度由电动机本身的速度控制来控制 具有从磁带再现的控制信号,从而在提示播放和回放播放期间磁带的速度大致恒定。

    Magnetic tape reproducing system
    2.
    发明授权
    Magnetic tape reproducing system 失效
    磁带重放系统

    公开(公告)号:US3942188A

    公开(公告)日:1976-03-02

    申请号:US519786

    申请日:1974-10-31

    CPC分类号: H04N5/783 H04N5/7826

    摘要: A magnetic tape reproducing system for providing a still picture of a slow motion picture. A magnetic tape is provided on which video signals are recorded in successive fields of a unit length in the longitudinal direction of the tape and a plurality of rotary magnetic reproducing heads are placed on the periphery of a rotating disc at equal angular intervals from each other so as to reproduce one complete field of the video signals. The magnetic reproducing heads are arranged so that the distance between the two gaps of two adjacent heads is equal to an integral multiple of the distance along the tape corresponding to a period of horizontal synchronizing signals contained in the video signals.

    摘要翻译: 一种用于提供慢动态影像的静止图像的磁带重放系统。 提供磁带,视频信号在带的长度方向的单位长度的连续场中被记录,并且多个旋转磁性再现头以相等的角度间隔彼此相对放置在旋转盘的周边上 以再现视频信号的一个完整领域。 这些磁性再现头被布置成使得两个相邻头部的两个间隙之间的距离等于与视频信号中包含的水平同步信号的周期相对应的沿带的距离的整数倍。

    Integrated video camera/recorder unit
    3.
    发明授权
    Integrated video camera/recorder unit 失效
    集成摄像机/录像机单元

    公开(公告)号:US4731677A

    公开(公告)日:1988-03-15

    申请号:US810695

    申请日:1985-12-18

    摘要: A video tape recorder (VTR) including a detection switch for detecting presence and absence of an erasure prevention tab of a video tape cassette, a light emitting element, a control device associated operatively with the light emitting element, and an electronic viewfinder. When a first video tape cassette provided with the erasure prevention tab as been loaded into the VTR, the control device sets the VTR to a recording standby state and turns on the light emitting element. Meanwhile, when a second video tape cassette which is not provided with the erasure prevention tab has been loaded into the VTR, the control device sets the VTR to a stop state, flashes the light emitting element and causes the electronic viewfinder to display on a screen of the electronic viewfinder a warning indicative of loading of the second video tape cassette into the VTR.

    摘要翻译: 一种录像带录像机(VTR),包括一个检测开关,用于检测录像带的防擦除标签的存在和不存在,发光元件,与发光元件可操作地相关联的控制装置和电子取景器。 当设置有防擦除标签的第一盒式磁带装载到VTR中时,控制装置将VTR设置为记录待机状态并打开发光元件。 同时,当没有设置防擦除片的第二盒式磁带已经被装载到VTR中时,控制装置将VTR设置为停止状态,闪烁发光元件并使电子取景器显示在屏幕上 所述电子取景器指示将所述第二录像带加载到所述VTR中的警告。

    Method of processing video signals for time base correction
    4.
    发明授权
    Method of processing video signals for time base correction 失效
    处理视频信号进行时基校正的方法

    公开(公告)号:US4344087A

    公开(公告)日:1982-08-10

    申请号:US98199

    申请日:1979-11-27

    CPC分类号: H04N5/932

    摘要: A method of processing video signals for eliminating vertical picture fluctuations caused when a video tape recorder reproduces video signals at a tape speed different from that used for recording the video signals. The vertical picture fluctuations are eliminated by substituting distorted vertical synchronous signals for the original vertical synchronous signal, the distorted vertical synchronous signals generated by a processing apparatus having a correction circuit which corrects for the difference in frequency characteristics between the video signal path and the vertical synchronous signal path.

    摘要翻译: 一种处理视频信号的方法,用于消除当磁带录像机以不同于用于记录视频信号的磁带速度再现视频信号时引起的垂直图像波动。 通过将失真的垂直同步信号代入原始垂直同步信号,由具有修正视频信号路径和垂直同步信号之间的频率特性差异的校正电路的处理装置产生的失真垂直同步信号来消除垂直图像波动 信号路径。

    Image processing device
    5.
    发明申请
    Image processing device 审中-公开
    图像处理装置

    公开(公告)号:US20070024741A1

    公开(公告)日:2007-02-01

    申请号:US10571280

    申请日:2004-08-30

    IPC分类号: H04N5/238

    CPC分类号: H04N5/2352

    摘要: An image processing device for automatically setting the accumulation time (exposure time) in accordance with the illuminance even in a dark environment and smoothly following the motion of an object. The image processing device includes: gain control means (7) for performing gain control of a video signal from an imaging element (6) which focuses a signal from an iris (2) controlling the light quantity of the optical signal coming from outside and outputs a video signal; signal processing means (9) for signal-processing an output signal from the gain control means (7); and imaging control means (25) for controlling the opening degree of the iris (2), the exposure time of the imaging element (6), and the gain amount of the gain control means according to the video signal from the signal processing means (9). The imaging control means (25) judges the brightness around according to the video signal from the signal processing means (9) when it is dark around and changes the exposure time of the imaging element (6).

    摘要翻译: 一种图像处理装置,用于即使在黑暗的环境中也可以根据照度自动设定累积时间(曝光时间),并且顺利地跟随物体的运动。 图像处理装置包括:增益控制装置(7),用于对来自控制来自外部的光信号的光量的光圈(2)的信号进行聚焦的成像元件(6)进行视频信号的增益控制,并输出 视频信号; 信号处理装置(9),用于对来自增益控制装置(7)的输出信号进行信号处理; 以及用于根据来自信号处理装置的视频信号控制光圈(2)的开度,成像元件(6)的曝光时间和增益控制装置的增益量的成像控制装置(25) 9)。 成像控制装置(25)在暗处时根据来自信号处理装置(9)的视频信号来判断周围的亮度,并改变成像元件(6)的曝光时间。

    Magnetic tape system for optimally reproducing still and slow motion
video pictures
    6.
    发明授权
    Magnetic tape system for optimally reproducing still and slow motion video pictures 失效
    用于最佳地再现静止和慢动作视频图像的磁带系统

    公开(公告)号:US4428004A

    公开(公告)日:1984-01-24

    申请号:US260721

    申请日:1981-05-05

    申请人: Mineo Mino

    发明人: Mineo Mino

    CPC分类号: G11B15/1875

    摘要: A VTR reproducing system in a slant track type video tape recorder, in which a tape transport motor is driven by two pulse signals formed of a reference signal and different in frequency but coincident in phase, thereby reproducing a noiseless still picture and a slow motion picture on the television receiver.

    摘要翻译: 一种倾斜轨道式磁带录像机中的VTR再现系统,其中磁带传输电机由参考信号形成的频率不同但频率相同的两个脉冲信号驱动,从而再现无噪声的静止图像和慢动作图像 在电视接收机上。

    Rotary head type magnetic tape recording reproducing apparatus
    7.
    发明授权
    Rotary head type magnetic tape recording reproducing apparatus 失效
    旋转头式磁带录像再现装置

    公开(公告)号:US4327384A

    公开(公告)日:1982-04-27

    申请号:US116464

    申请日:1980-01-29

    CPC分类号: G11B5/588

    摘要: A rotary head type magnetic tape recording/reproducing apparatus, by which a tracking condition of the reproducing heads and a recorded track can be automatically adjusted. This apparatus includes an oscillator for imparting small vibrations to the reproducing heads, a synchronous detector, an integration adder circuit including an adder and a delay circuit rotary heads mounted on a positionable element, and from the small vibrations. A tracking error signal which is derived by wobbling circuit is applied to the integration adder circuit, and the positionable element is controlled by the output signal of the integration adder means so as to construct a servo loop. Accordingly, proper tracking can be attained even for large tracking error.

    摘要翻译: 一种旋转磁头式磁带记录/再现装置,通过该旋转磁头型磁带记录/再现装置可以自动调整再现磁头的跟踪状态和记录磁迹。 该装置包括用于向再现头施加小振动的振荡器,同步检波器,积分加法器电路,其包括加法器和安装在可定位元件上的延迟电路旋转头以及小振动。 通过摆动电路导出的跟踪误差信号被施加到积分加法器电路,并且可定位元件由积分加法器装置的输出信号控制,以构成伺服回路。 因此,即使对于大的跟踪误差也可以获得适当的跟踪。

    Television channel selection apparatus employing multi-picture display
    8.
    发明授权
    Television channel selection apparatus employing multi-picture display 失效
    采用多画面显示的电视频道选择装置

    公开(公告)号:US4855833A

    公开(公告)日:1989-08-08

    申请号:US116735

    申请日:1987-11-04

    IPC分类号: H04N5/262 H04N5/45 H04N5/50

    摘要: An apparatus for selecting one of a number of television channels is operable to be set in a mode whereby an array of miniature pictures corresponding to the respective channels is displayed, with each channel being sequentially selected for a predetermined interval during which image data for the selected channel are repetitively written into one of a set of regions (42 to 50) of a one-field memory, with the entire memory contents being continuously and repetitively read out, whereby the picture for the selected channel appears as a moving picture while those of the other channels are static. The apparatus can then be set in a normal operating mode, with the channel selected at the time of mode changeover being thereafter held fixedly selected and a normal display picture produced.

    摘要翻译: 一种用于选择多个电视频道中的一个的装置可操作地被设置为一种模式,由此显示对应于相应频道的微型图像的阵列,其中每个频道被顺序地选择预定间隔,在此间隔期间,所选择的图像数据 通道被重复写入一场存储器的一组区域(42至50)中的一个,其中整个存储器内容被连续且重复地读出,由此所选频道的图像显示为运动图像, 其他通道是静态的。 然后可以将设备设置为正常操作模式,其中在模式切换时选择的通道此后被固定地选择并且产生正常的显示画面。

    Battery voltage level detecting apparatus
    9.
    发明授权
    Battery voltage level detecting apparatus 失效
    电池电压电平检测装置

    公开(公告)号:US4521735A

    公开(公告)日:1985-06-04

    申请号:US436351

    申请日:1982-10-25

    摘要: A battery voltage level detecting apparatus makes possible the detection of the voltage level of a battery and the detection of a minimum operating voltage by means of a single comparison circuit and a single adjustment. A voltage varying with variation of the battery voltage is compared with an output voltage of a counter for counting reference clocks so as to control the counting operation. When a change occurs in the comparison result, a battery voltage level storage command is generated, and then the counter is preset. In response to the command, the count value is stored and displayed.

    摘要翻译: 电池电压电平检测装置能够通过单个比较电路和单次调整来检测电池的电压电平和检测最小工作电压。 将随电池电压变化而变化的电压与用于计数基准时钟的计数器的输出电压进行比较,以便控制计数操作。 当比较结果发生变化时,产生电池电压电平存储指令,然后计数器被预设。 响应该命令,存储并显示计数值。