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1. 发明授权

US06495961B1 TWT power supply with improved dynamic range 有权
标题翻译： TWT电源具有改善的动态范围
公开(公告)号：US06495961B1
公开(公告)日：2002-12-17
申请号：US09911931
申请日：2001-07-24
申请人： Richard Johann Heinrich , Lucas John Bazin
发明人： Richard Johann Heinrich , Lucas John Bazin
IPC分类号： H01J2534
CPC分类号： H01J25/38
摘要： A power supply for a travelling-wave tube (TWT) includes a beam power supply (14) connected to the cathode and collector of the TWT, and a further power supply (20) connected to ground and to the collector for establishing the cathode-to-body voltage. A feedback cathode voltage regulator includes a transresistance arrangement (31) connected between ground and a terminal of the further power supply which, in one version, includes a cascade of a control transresistance device (32) with a plurality of further transresistance devices (234s) for reducing the voltage to which the control device is subjected. In another version, a plurality of such transresistance arrangements (A,B) are paralleled for reducing the power which any one device must handle. In a preferred embodiment, a current equalizer (240) equalizes the load carried by each of the transresistance arrangements (A,B).
摘要翻译：用于行波管（TWT）的电源包括连接到TWT的阴极和集电器的光束电源（14），以及连接到地面和集电器的另一个电源（20），用于建立阴极 - 体电压。反馈阴极电压调节器包括连接在地和另一电源的端子之间的跨阻布置（31），在一个版本中，其包括具有多个另外的跨阻器件（234s）的控制跨阻器件（32）的级联，用于降低控制装置所经受的电压。在另一个版本中，多个这样的跨阻布置（A，B）并联，以减少任何一个设备必须处理的功率。在优选实施例中，电流均衡器（240）使由每个跨阻布置（A，B）承载的载荷相等。

2. 发明授权

US4069432A Signal comparator circuit 失效
标题翻译：信号比较电路
公开(公告)号：US4069432A
公开(公告)日：1978-01-17
申请号：US693823
申请日：1976-06-07
申请人： Lucas John Bazin
发明人： Lucas John Bazin
IPC分类号： H04N5/202 , H04N9/69 , H04N9/73 , H03K5/20
CPC分类号： H04N9/69
摘要： A plurality of comparators are used to compare first, second, and third input signals against a first and second predetermined signal level threshold. The outputs of the comparators are combined to ascertain the difference in signal amplitude between the first, second, and third input signals with respect to the first and second predetermined signal thresholds. If the amplitude deviation of the first, second, and third signals are within the threshold limits, a control signal adjusts the characteristics of the first and second signal channels to match the amplitude of the first and second signals to the amplitude of the third signal to make the three input signals equal. If the first, second, and third input signal deviation is without the threshold limits, the input signals are assumed correct, and no adjustment is made.

3. 发明授权

US4064541A Constant pulse width sync regenerator 失效
标题翻译：恒定脉冲同步再生器
公开(公告)号：US4064541A
公开(公告)日：1977-12-20
申请号：US700122
申请日：1976-06-28
申请人： Dennis Michael Schneider , Lucas John Bazin
发明人： Dennis Michael Schneider , Lucas John Bazin
IPC分类号： H04N5/04 , H04N5/06 , H04N5/08 , H04N5/10
CPC分类号： H04N5/08
摘要： A sync regenerator is provided which regenerates synchronizing information signals having a varying amplitude and width by comparing the sync signals in a comparator circuit to which a source of reference potential is applied. The comparator output signal of fixed amplitude is pulse width detected and the value of the detector output voltage is coupled by a feedback circuit to the reference potential source to vary the reference potential so as to maintain the width of the comparator output signal constant. The regenerated sync output signal is of constant amplitude and constant width.
摘要翻译：提供同步再生器，通过比较施加参考电位源的比较器电路中的同步信号，再生具有变化幅度和宽度的同步信息信号。固定振幅的比较器输出信号被检测为脉冲宽度，检测器输出电压的值通过反馈电路耦合到参考电位源，以改变参考电位，以保持比较器输出信号的宽度恒定。再生的同步输出信号具有恒定的幅度和恒定的宽度。

4. 发明授权

US3970774A Electronic signal mixer 失效
标题翻译：电子信号调音台
公开(公告)号：US3970774A
公开(公告)日：1976-07-20
申请号：US563683
申请日：1975-03-31
申请人： Lucas John Bazin , Gary Ray Peterson
发明人： Lucas John Bazin , Gary Ray Peterson
IPC分类号： G06G7/14 , H04N5/202 , H04N9/69 , H04N5/14 , H04N5/20 , H04N5/22
CPC分类号： H04N9/69 , G06G7/14 , H04N5/202
摘要： An electronic signal mixer is provided for combining first and second signals by additively (or differentially) combining the first and second signals to provide a first output signal. The first and second signals are further combined in a multiplier circuit to provide an output signal which is a differential (or additive) combination of the first and second signals multiplied by a coefficient determined by a control voltage applied to the multiplier. The first combined signal and the product output of the multiplier are further combined to provide a resultant signal comprised of any proportionality of the first and second signals in accordance with the value of the control voltage.
摘要翻译：提供电子信号混合器用于通过相加地（或差分地）组合第一和第二信号以组合第一和第二信号以提供第一输出信号。第一和第二信号被进一步组合在乘法器电路中以提供输出信号，其是第一和第二信号的差分（或加法）组合乘以由施加到乘法器的控制电压确定的系数。乘法器的第一组合信号和乘积输出被进一步组合，以根据控制电压的值提供包括第一和第二信号的任何比例的结果信号。

5. 发明授权

US4038687A Video blanking circuit 失效
标题翻译：视频消隐电路
公开(公告)号：US4038687A
公开(公告)日：1977-07-26
申请号：US715301
申请日：1976-08-18
申请人： Dennis Michael Schneider , Lucas John Bazin
发明人： Dennis Michael Schneider , Lucas John Bazin
IPC分类号： H04N5/14 , H04N5/067 , H04N5/18
CPC分类号： H04N5/0675
摘要： A video blanking circuit is provided which inserts a system blanking interval signal having controlled leading and trailing edges into a video signal. The blanking signal is combined with a clamped video signal in a first non-additive mixer which also provides a white clip level. The output of the first non-additive mixer is further coupled to a second non-additive mixer in which black level excursions are clipped so as to provide an output video signal having a proper system blanking interval into which synchronizing information may be added to complete the composite video waveform.
摘要翻译：提供一种视频消隐电路，其将具有受控前导和后沿的系统消隐间隔信号插入到视频信号中。消隐信号与第一非加性混合器中的钳位视频信号组合，该第一非加和混合器也提供白夹级。第一非加性混频器的输出进一步耦合到第二非加性混频器，其中黑电平偏移被限幅，以便提供具有适当的系统消隐间隔的输出视频信号，可以向其中添加同步信息以完成复合视频波形。

6. 发明授权

US4038685A Apparatus for automatic gamma control of television color signals 失效
标题翻译：电视彩色信号自动控制的设备
公开(公告)号：US4038685A
公开(公告)日：1977-07-26
申请号：US563684
申请日：1975-03-31
申请人： Lucas John Bazin
发明人： Lucas John Bazin
IPC分类号： H04N5/202 , H04N9/69 , H04N9/73 , H04N9/53
CPC分类号： H04N9/69
摘要： A plurality of comparators are used to compare the red, blue and green color signals of a color television camera against a first and second predetermined signal level threshold corresponding to selected values of grey scale. The outputs of the comparators are combined to ascertain the difference in signal amplitude between the red, blue and green signals with respect to the first and second predetermined signal thresholds which represent grey. If the amplitude deviation of the red, blue and green color signals is within the threshold limits, a control signal adjusts the gamma characteristics of the blue and red color channels to match the amplitude of the red and blue color signals to the amplitude of the green color signal to correct to grey. If the red, blue and green color signal deviation is without the threshold limits, the color signal is assumed correct and no adjustment is made.The system provides automatic and continuous correction of gamma characteristics of the video signals generated by the television camera during the telecasting of an actual program source.
摘要翻译：多个比较器用于将第一，第二和第三输入信号与第一和第二预定信号电平阈值进行比较。组合比较器的输出以确定第一，第二和第三输入信号之间相对于第一和第二预定信号阈值的信号幅度差。如果第一，第二和第三信号的振幅偏差在阈值范围内，则控制信号调节第一和第二信号通道的特性，使第一和第二信号的振幅与第三信号的振幅相匹配使三个输入信号相等。如果第一，第二和第三输入信号偏差没有阈值限制，则输入信号被认为是正确的，并且不进行调整。

7. 发明授权

US3983452A High efficiency deflection circuit 失效
标题翻译：高效偏转电路
公开(公告)号：US3983452A
公开(公告)日：1976-09-28
申请号：US563878
申请日：1975-03-31
申请人： Lucas John Bazin
发明人： Lucas John Bazin
IPC分类号： H04N3/16 , G09G1/04 , G09G1/16 , H03K4/69 , H01J29/70 , H01J29/76
CPC分类号： H03K4/696
摘要： A push-pull common emitter deflection output stage energized by a relatively low direct voltage includes zener diode drive coupling to its input circuit for reducing crossover distortion. A diode in series with a deflection winding disconnects the output stage from the winding during a portion of the retrace interval to allow the retrace pulse voltage to rise to a relatively high direct voltage supplied through a switched transistor only during the retrace interval to reduce power dissipation in the output stage. Current feedback from the deflection winding to a driver stage during trace and retrace intervals accurately determines the retrace duration.
摘要翻译：由相对低的直流电压激励的推挽式共发射极偏转输出级包括齐纳二极管驱动耦合到其输入电路以减少交叉失真。与偏转线圈串联的二极管在回扫间隔的一部分期间将输出级与绕组断开，以允许回扫脉冲电压仅在回扫间隔期间上升到通过开关晶体管提供的相对较高的直流电压，以减少功耗在输出阶段。在跟踪和回扫间隔期间从偏转线圈到驱动器级的电流反馈准确地确定回扫持续时间。

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