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公开(公告)号:US4223344A
公开(公告)日:1980-09-16
申请号:US969975
申请日:1978-12-15
IPC分类号: H04N9/24
CPC分类号: H04N9/24
摘要: A beam index color cathode ray tube has index stripes spaced apart across a run-in area of the screen which have a pitch substantially equal to the pitch of index stripes in an image area, and a predetermined number of the index stripes in the run-in area are counted as an electron beam scans them to preset color control circuits to a predetermined condition at the commencement of scanning of the image area. A characteristic of the signal resulting from scanning of the index stripes may be used to begin the counting thereof from a specific one of the index stripes in the run-in area other than the first one encountered by the electron beam.
摘要翻译: 光束折射彩色阴极射线管具有跨越屏幕的输入区域间隔开的索引条,其具有基本上等于图像区域中的索引条的间距的间距,以及预定数量的图像区域中的索引条, 在图像区域的扫描开始时,计数区域被计数为电子束将它们扫描到预设的颜色控制电路到预定条件。 可以使用由索引条纹扫描产生的信号的特性,从除电子束遇到的第一个以外的导入区域中的特定索引条中开始计数。
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公开(公告)号:US4212030A
公开(公告)日:1980-07-08
申请号:US969861
申请日:1978-12-15
CPC分类号: H04N9/24 , H01J2231/121
摘要: A beam index color cathode ray tube has index stripes spaced apart across a run-in area of the screen and which have a pitch substantially equal to the pitch of index stripes in an image area. A plurality of the index stripes in the run-in area generate an index signal as an electron beam scans them. An index stripe is omitted from the portion of the run-in area nearest the boundary with the image area to provide a characteristic to the index signal which permits generation of a trigger signal to preset color control circuits to a known condition as the electron beam enters the image area. A gating circuit blocks trigger signals which may be generated during scanning of the image area.
摘要翻译: 光束折射彩色阴极射线管具有跨越屏幕的入射区域间隔开的并且具有基本上等于图像区域中的折射条的间距的间距的折射条。 随着电子束扫描,导入区域中的多个索引条纹产生索引信号。 从与图像区域的边界最接近的部分入口区域中省略索引条纹,以向索引信号提供特征,该索引信号允许在电子束进入时允许产生触发信号以将预设的色彩控制电路设置为已知条件 图像区域。 门控电路阻止在扫描图像区域期间可能产生的触发信号。
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公开(公告)号:US4280134A
公开(公告)日:1981-07-21
申请号:US54490
申请日:1979-07-03
申请人: Akira Tooyama , Takashi Tooyama , Takashi Hosono
发明人: Akira Tooyama , Takashi Tooyama , Takashi Hosono
CPC分类号: H04N9/24
摘要: Apparatus for controlling the electron beam in a beam index color television receiver of the type having a cathode ray tube whose display screen is provided with beam-excitable color elements and index elements which are scanned by the beam. The apparatus comprises an index signal generator for generating a periodic index signal as the index elements are scanned by the beam. Color gates are provided for sequentially gating respective color control signals individually to modulate the electron beam as that beam scans the color elements. A gating signal generator generates sequential gating signals at a frequency synchronized with the frequency of the periodic index signal. These gating signals are supplied in sequence to the color gates to control the latter so as to gate the respective color control signals. A driving circuit responds to the periodic index signal to drive the gating signal generator. The driving circuit includes a time adjustment circuit for compensating the inherent time delay of the overall apparatus such that the respective color control signals are gated in time correspondence with the position of the beam at a color element that is associated with the gated color control signal.
摘要翻译: 用于控制具有阴极射线管的类型的光束折射彩色电视接收机中的电子束的装置,其显示屏幕具有光束可激发色彩元素和由光束扫描的折射元件。 该装置包括索引信号发生器,用于当光束扫描索引元素时产生周期性索引信号。 提供彩色门以分别顺序地选通各个颜色控制信号,以便当该光束扫描色彩元素时调制电子束。 门控信号发生器以与周期性索引信号的频率同步的频率产生顺序门控信号。 这些选通信号依次提供给彩色门,以控制颜色门,以便对相应的颜色控制信号进行门控。 驱动电路响应周期性索引信号来驱动门控信号发生器。 驱动电路包括用于补偿整个装置的固有时间延迟的时间调整电路,使得各个颜色控制信号在与门控颜色控制信号相关联的色彩元素处的时间对应于光束的位置被选通。
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公开(公告)号:US4314179A
公开(公告)日:1982-02-02
申请号:US135667
申请日:1980-03-31
申请人: Akira Tooyama , Takashi Hosono
发明人: Akira Tooyama , Takashi Hosono
摘要: A horizontal scanning rate correction apparatus for a cathode-ray tube, particularly of the beam index color cathode-ray tube type, includes a memory for storing correction values representing deviations of the horizontal scanning rate of the electron beam from a desired scanning rate; a reading circuit for reading the correction values from the memory; a correcting signal forming circuit for sensing fluctuation in the value of a high voltage supplied to an anode of the cathode-ray tube from a high voltage source and for producing a correcting signal in response thereto in accordance with the formula: .DELTA.V(t)=a(V.sub.H (t)-V.sub.HO)-b'x.sub.H .multidot.(d/dt.multidot.V.sub.H (t), where V.sub.H (t) is the instantaneous value of the high voltage, V.sub.HO is a constant value voltage, a and b are constants and X.sub.H corresponds to the amount of electron beam deflection; and a scanning rate modulating circuit supplied with the correction values read by the reading circuit and supplied with the correcting signal for substantially cancelling any deviation in the horizontal scanning rate from the desired rate.
摘要翻译: 用于阴极射线管的水平扫描速率校正装置,特别是光束折射彩色阴极射线管型的扫描速率校正装置,包括一个用于存储表示电子束的水平扫描速率偏离所需扫描速率的校正值的存储器; 读取电路,用于从存储器读取校正值; 校正信号形成电路,用于感测从高电压源提供给阴极射线管的阳极的高电压值的波动,并根据以下公式产生响应于此的校正信号:DELTA V(t) =(VH(t)-VHO)-b'xHx(d / dtxVH(t))其中VH(t)是高电压的瞬时值,VHO是恒定值电压,a和b是常数,XH 对应于电子束偏转量;以及扫描速率调制电路,由扫描速率调制电路提供读取电路读取的校正值,并提供校正信号,用于基本上取消水平扫描速率的任何偏离所需速率。
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5.
公开(公告)号:US4287531A
公开(公告)日:1981-09-01
申请号:US95557
申请日:1979-11-19
申请人: Ichiro Mitamura , Akira Tooyama , Takashi Hosono
发明人: Ichiro Mitamura , Akira Tooyama , Takashi Hosono
IPC分类号: H04N9/24
CPC分类号: H04N9/24
摘要: Deflection control apparatus is disclosed for a beam index color television receiver of the type which includes a cathode ray tube adapted to display a video picture in response to a received color television signal. The beam index cathode ray tube is provided with index stripes which are scanned by the electron beam as the beam scans a raster across the display screen of the tube. A detector detects when the respective index stripes are scanned by the beam so as to produce an index signal, the frequency of which varies from a predetermined frequency value when the scanning speed of the beam varies. An oscillator generates an oscillating signal that is synchronized with the index signal, and a phase locked loop, which includes a comparator for comparing the index signal to the oscillating signal so as to produce a control signal as a function of the difference therebetween, adjusts the frequency of the oscillating signal in accordance with that control signal. The television receiver also includes a switching arrangement which is responsive to the oscillating signal to switch color information signals for the purpose of modulating the beam. The deflection control apparatus includes a deflection device for controlling the deflection of the beam; and a deflection signal generator responsive to the control signal produced by the phase-locked loop for supplying deflection control signals to the deflection device so as to vary the deflecting speed of the beam and thereby maintain a substantially constant scanning speed thereof.
摘要翻译: 公开了一种用于波束折射彩色电视接收机的偏转控制装置,其包括适于响应于接收的彩色电视信号显示视频图像的阴极射线管。 光束折射率阴极射线管设置有索引条纹,当光束扫描穿过管的显示屏幕的光栅时,它们被电子束扫描。 检测器检测各个索引条纹何时被光束扫描,以产生当光束扫描速度变化时其频率从预定频率值变化的索引信号。 振荡器产生与索引信号同步的振荡信号,以及锁相环,其包括用于将索引信号与振荡信号进行比较的比较器,以产生作为它们之间的差的函数的控制信号, 根据该控制信号的振荡信号的频率。 电视接收机还包括开关装置,其响应于振荡信号来切换用于调制波束的目的的颜色信息信号。 偏转控制装置包括用于控制光束偏转的偏转装置; 以及响应于由锁相环产生的控制信号的偏转信号发生器,用于向偏转装置提供偏转控制信号,以便改变光束的偏转速度,从而保持其基本恒定的扫描速度。
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公开(公告)号:US07948193B2
公开(公告)日:2011-05-24
申请号:US12444028
申请日:2007-09-27
申请人: Fumito Komatsu , Hideaki Osada , Akira Tooyama , Makoto Murakami
发明人: Fumito Komatsu , Hideaki Osada , Akira Tooyama , Makoto Murakami
CPC分类号: H02P1/465 , H02K21/22 , H02K29/08 , H02M2001/0012 , H02P6/20 , H02P6/22 , H02P25/024
摘要: An inexpensive, productivity-enhanced single-phase AC synchronous motor in which stabilized synchronous pull-in can be carried out by suppressing generation of counter torque during a starting operation. Starting operation is performed while the energizing range of motor current is suppressed such that the energizing direction of motor current waveform lagging in a phase behind the output waveform from a detection sensor (17) is switched at at least the zero cross point of the output waveform from the sensor when the number of revolutions of a permanent magnet rotor (1) reaches a predetermined number of revolutions in the vicinity of the synchronous number of revolutions.
摘要翻译: 一种廉价的生产率增强型单相交流同步电动机,其中可以通过在起动操作期间抑制逆转矩的产生来实现稳定的同步拉入。 在电动机电流的通电范围被抑制的情况下进行启动操作,使得来自检测传感器(17)的输出波形之后的相位滞后的电动机电流波形的通电方向至少在输出波形的零交叉点 当永磁转子(1)的转数在同步转数附近达到预定转数时,从传感器开始。
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公开(公告)号:US20100026231A1
公开(公告)日:2010-02-04
申请号:US12444028
申请日:2007-09-27
申请人: Fumito Komatsu , Hideaki Osada , Akira Tooyama , Makoto Murakami
发明人: Fumito Komatsu , Hideaki Osada , Akira Tooyama , Makoto Murakami
IPC分类号: H02P1/50
CPC分类号: H02P1/465 , H02K21/22 , H02K29/08 , H02M2001/0012 , H02P6/20 , H02P6/22 , H02P25/024
摘要: An inexpensive, productivity-enhanced single-phase AC synchronous motor in which stabilized synchronous pull-in can be carried out by suppressing generation of counter torque during a starting operation. Starting operation is performed while the energizing range of motor current is suppressed such that the energizing direction of motor current waveform lagging in a phase behind the output waveform from a detection sensor (17) is switched at at least the zero cross point of the output waveform from the sensor when the number of revolutions of a permanent magnet rotor (1) reaches a predetermined number of revolutions in the vicinity of the synchronous number of revolutions.
摘要翻译: 一种廉价的生产率增强型单相交流同步电动机,其中可以通过在起动操作期间抑制逆转矩的产生来实现稳定的同步拉入。 在电动机电流的通电范围被抑制的情况下进行启动操作,使得来自检测传感器(17)的输出波形之后的相位滞后的电动机电流波形的通电方向至少在输出波形的零交叉点 当永磁转子(1)的转数在同步转数附近达到预定转数时,从传感器开始。
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