Camcorder and controller
    72.
    发明授权
    Camcorder and controller 失效
    摄像机和控制器

    公开(公告)号:US5956461A

    公开(公告)日:1999-09-21

    申请号:US736993

    申请日:1996-10-25

    摘要: A VCR integrally provided with a camera (camcorder) stops power supply at a non-recording mode for reducing power consumption. The camcorder is arranged to have power control units and a switch for controlling the start or the end of the recording operation and the power-on or power-off of at least one or more of a camera section, a VCR section and a display section, a time measuring unit, and a control unit for starting the recording unit a predetermined time later than when the camera section starts to pick up an image sequence and the image sequence appears on an electronic viewfinder or the like. Further, the camcorder includes units for moving a zoom lens to a Wide-terminal when powered off, when powered on or a predetermined time later than when powered off. Moreover, there are provided units for overlapping text information with the image sequence appearing on the electronic viewfinder. These units display a time left until the recording start. The camcorder further provides units for varying a predetermined time left until the recording start and units for selecting a moving timing on which the zoom lens is moved to the Wide-terminal so that the user may freely set the predetermined time and the moving timing.

    摘要翻译: 与相机(摄像机)一体设置的录像机在非录制模式下停止供电以降低功耗。 摄像机被配置为具有电源控制单元和用于控制记录操作的开始或结束以及照相机部分,VCR部分和显示部分中的至少一个或多个的上电或断电的开关 ,时间测量单元和用于在比相机部分开始拾取图像序列并且图像序列出现在电子取景器等上的预定时间开始记录单元的控制单元。 此外,摄像机包括用于在电源关闭时,当接通电源或比断电时的预定时间时将变焦镜头移动到宽终端的单元。 此外,提供了用于与文本信息重叠的单元,其中出现在电子取景器上的图像序列。 这些单位显示一段时间,直到录制开始。 摄像机还提供用于改变直到记录开始的预定时间的单位和用于选择将变焦镜头移动到宽终端的移动定时的单元,以便用户可以自由地设定预定时间和移动定时。

    Method of processing and recording data while reproducing the same and
apparatus for the method
    73.
    发明授权
    Method of processing and recording data while reproducing the same and apparatus for the method 失效
    在再现该数据的同时处理和记录数据的方法以及该方法的装置

    公开(公告)号:US5438459A

    公开(公告)日:1995-08-01

    申请号:US876083

    申请日:1992-04-30

    摘要: The precedingly reproduction signal reproduced by a precedingly reproducing head is recorded on a tape. If it is detected that the reproduction signal includes abnormality owing to a reason such as poor error rate, the recording operation is stopped. Then, for retrial of the recording, the information on the position where the abnormality has occurred is held. A memory may be provided to always rewrite and store the signal reproduced by the precedingly reproducing head, and also a simultaneously reproducing head which is different from the precedingly reproducing head may be provided to immediately monitor the recording state of the signal recorded on the tape. If it is detected that the signal reproduced by the simultaneously reproducing head includes abnormality, the recording operation is stopped, the information on the position where the abnormality has occurred is held. Further, the rewrite operation in the memory is stopped and the original precedingly reproduction signal corresponding to the signal to be recorded at the position where the abnormality has occurred is held in the memory.

    摘要翻译: 由先前再现头再现的先前再现信号被记录在磁带上。 如果检测到再现信号由于错误率差等原因而包含异常,则停止记录操作。 然后,为了重新记录,保持发生了异常的位置的信息。 可以提供存储器来总是重写和存储由先前再现头再现的信号,并且还可以提供与先前再现头不同的同时再现头,以立即监视记录在磁带上的信号的记录状态。 如果检测到由同时再现头再现的信号包含异常,则停止记录操作,保持发生异常的位置的信息。 此外,存储器中的重写操作被停止,并且与在要发生异常的位置处要被记录的信号相对应的原始先前再现信号被保持在存储器中。

    A memory controlling apparatus for a magnetic recording and reproducing
apparatus
    74.
    发明授权
    A memory controlling apparatus for a magnetic recording and reproducing apparatus 失效
    一种用于磁记录和再现装置的存储器控​​制装置

    公开(公告)号:US4912571A

    公开(公告)日:1990-03-27

    申请号:US81446

    申请日:1987-08-04

    IPC分类号: H04N5/937

    CPC分类号: H04N5/937

    摘要: A memory controlling apparatus for a magnetic recording and reproducing apparatus which records and reproduces a field image signal in each read or write cycle performed by a video head for reproducing the image signal from a magnetic tape, and by a video head position detector for detecting the position of the video head. A reference circuit obtains a signal defining a reference timing which is independent of the position of the video head and which is also used to determine the phase of the video head. A memory is provided having storage sufficient to store the field image signal, and a controller is provided for controlling the operation of reading and writing the image signal from and into the memory. The controller is synchronized with a signal of the video head position detector when storing the image signal into the memory and when reading out the image stored in the memory, the controller and the head position detector are synchronized with the reference timing so as to enable production of a slow-motion image signal free from fluctuations caused by feeding of the magnetic tape.

    摘要翻译: 一种用于磁记录和再现装置的存储器控​​制装置,其在由用于从磁带再现图像信号的视频头执行的每个读或写周期中记录和再现场图像信号,以及视频头位置检测器,用于检测 视频头的位置。 参考电路获得定义与视频头的位置无关的参考定时的信号,并且还用于确定视频头的相位。 提供具有足以存储场图像信号的存储器的存储器,并且提供控制器用于控制从存储器读取和写入图像信号的操作。 当将图像信号存储到存储器中时,控制器与视频磁头位置检测器的信号同步,并且当读出存储在存储器中的图像时,控制器和磁头位置检测器与基准定时同步,以便能够产生 的慢动作图像信号没有由磁带的馈送引起的波动。

    Slow-motion device of magnetic recording and reproducing apparatus
    75.
    发明授权
    Slow-motion device of magnetic recording and reproducing apparatus 失效
    磁记录和再现装置的慢动作装置

    公开(公告)号:US4774598A

    公开(公告)日:1988-09-27

    申请号:US857235

    申请日:1986-04-29

    CPC分类号: G11B15/1875

    摘要: In a slow-motion device of a helical scan type video tape recorder, detection is effected to detect a noise in a reproduced signal which is caused when the magnetic tape is fed such that the magnetic heads which have reproduced a preceding still image at a track transfer to the succeeding track and thereafter the magnetic heads scan the succeeding track, and the position of the magnetic tape is controlled by a tape control system so that the noise is confined within a position at a noise bar due to the noise is prevented from being displayed on the reproduction screen.

    摘要翻译: 在螺旋扫描型磁带录像机的慢动作装置中,进行检测,以检测当磁带被馈送时引起的再现信号中的噪声,使得在轨道上再现了先前的静止图像的磁头 转移到后续轨道,然后磁头扫描后续轨道,并且磁带的位置由磁带控制系统控制,使得噪声被限制在噪声条的位置内,由于噪声被阻止 显示在再现画面上。

    Apparatus for driving brushless motor
    76.
    发明授权
    Apparatus for driving brushless motor 失效
    无刷电机驱动装置

    公开(公告)号:US4651067A

    公开(公告)日:1987-03-17

    申请号:US703906

    申请日:1985-02-21

    IPC分类号: H02P6/10 H02P6/02

    CPC分类号: H02P6/10

    摘要: An apparatus for driving a brushless motor, in which a ripple appearing in the rotation torque of the motor is cancelled by driving the motor with a signal current whose phase is opposite to that of and which has a waveform symmetrical with that of the torque ripple waveform, so that the motor can rotate accurately without any speed variation. In order to obtain such a signal current waveform, counter-electromotive forces induced in the stator coils of the motor are detected, and the level of the signal indicative of the detected counter-electromotive forces is controlled depending on the load and rotation speed of the motor to provide a control signal for controlling the motor drive current.

    摘要翻译: 一种用于驱动无刷电动机的装置,其中通过用相位相反的信号电流驱动电动机来消除电动机的旋转转矩中出现的波动,并且其具有与转矩脉动波形对称的波形 ,使得电机可以精确地旋转而没有任何速度变化。 为了获得这样的信号电流波形,检测在电动机的定子线圈中感应的反电动势,并且根据负载和转速来控制表示检测到的反电动势的信号的电平 电机提供用于控制电机驱动电流的控制信号。

    Bipolar transistor circuit with FET constant current source
    77.
    发明授权
    Bipolar transistor circuit with FET constant current source 失效
    具有FET恒流源的双极晶体管电路

    公开(公告)号:US4590438A

    公开(公告)日:1986-05-20

    申请号:US499246

    申请日:1983-05-31

    IPC分类号: H03F3/345 H03F3/45 H03F3/16

    CPC分类号: H03F3/45085 H03F3/345

    摘要: A transistor circuit is used as a signal amplifier which has little possibility of oscillation in an IC. The transistor circuit includes a cascade connection of differential amplifiers. Each of the amplifiers comprises a differential pair of bipolar transistors and an enhancement-type MOSFET as a constant current source. The MOSFET of each amplifier is connected in the common source mode, and the drain is connected to the emitters of the differential pair of bipolar transistors. The sources of all the MOSFETs are connected to a common ground-line.

    摘要翻译: 晶体管电路被用作在IC中几乎没有振荡的信号放大器。 晶体管电路包括差分放大器的级联连接。 每个放大器包括双极晶体管的差分对和作为恒流源的增强型MOSFET。 每个放大器的MOSFET以公共源模式连接,漏极连接到差分双极晶体管的发射极。 所有MOSFET的源极连接到公共地线。

    Power supply for plural brushless DC motors
    78.
    发明授权
    Power supply for plural brushless DC motors 失效
    多个无刷直流电机的电源

    公开(公告)号:US4503369A

    公开(公告)日:1985-03-05

    申请号:US506896

    申请日:1983-06-22

    CPC分类号: H02P5/68 H02P5/60 H02P6/04

    摘要: A power supply in which a single variable voltage supply device is used as a power source for a plurality of motors which are simultaneously or successively rotated, in which each motor is subjected to constant current driving by a current control device connected to the motor, and in which the variable voltage supply device is controlled so as to produce a voltage which is the sum of the highest one of the voltages required for driving the motors and necessary and minimum voltage with which all the current control devices are operable.

    摘要翻译: 一种电源,其中单个可变电压供应装置用作同时或连续旋转的多个电动机的电源,其中每个电动机通过连接到电动机的电流控制装置进行恒定电流驱动;以及 其中可变电压供应装置被控制以产生作为驱动电动机所需的最高电压之和的电压和所有电流控制装置可操作的必要和最小电压的电压。

    Drive system for a motor
    79.
    发明授权
    Drive system for a motor 失效
    电机驱动系统

    公开(公告)号:US4307326A

    公开(公告)日:1981-12-22

    申请号:US149535

    申请日:1980-05-13

    摘要: Disclosed is a drive system for a motor, wherein a current proportional to a change of a load of a motor is sensed by a sensing resistor. A voltage produced across the sensing resistor controls an electronic switch in a manner that the output DC voltage of a DC - DC converter is used for a motor drive power source at a normal load and yet a DC power source with a higher voltage than the output DC voltage of the DC - DC converter is used therefor at an increased load.

    摘要翻译: 公开了一种用于电动机的驱动系统,其中与电动机的负载变化成比例的电流由感测电阻器感测。 在感测电阻器两端产生的电压控制电子开关,使DC-DC转换器的输出直流电压用于正常负载下的电动机驱动电源,而使用电压高于输出的直流电源 DC-DC转换器的直流电压用于增加负载。

    Limiter circuit for limiting pulsive noises
    80.
    发明授权
    Limiter circuit for limiting pulsive noises 失效
    用于限制脉动噪声的限制电路

    公开(公告)号:US4198602A

    公开(公告)日:1980-04-15

    申请号:US934717

    申请日:1978-08-21

    IPC分类号: H03G11/00 H03G11/04 H04B1/10

    摘要: A limiter circuit comprises a low-pass filter which passes only a modulation signal out of the modulation signal having pulsive noises superimposed thereon and circuit means for supplying the modulation signal extracted by the filter to current source circuits for a limiter differential amplifier to control the current source circuit for the limiter differential amplifier in accordance with a waveform of the input modulation signal applied thereto.

    摘要翻译: 限幅器电路包括低通滤波器,其仅通过叠加有脉动噪声的调制信号通过调制信号;电路装置,用于将由滤波器提取的调制信号提供给限幅器差分放大器的电流源电路,以控制电流 根据施加到其的输入调制信号的波形,限幅差分放大器的源极电路。