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1. 发明授权

US4749919A Shutdown circuit for video monitor 失效
标题翻译：视频监控关机电路
公开(公告)号：US4749919A
公开(公告)日：1988-06-07
申请号：US720065
申请日：1985-04-08
申请人： Gregory J. Beaumont , James R. Oates , Richard J. Steinmetz
发明人： Gregory J. Beaumont , James R. Oates , Richard J. Steinmetz
IPC分类号： H04N3/20 , H01J29/52 , H04N5/68
CPC分类号： H04N3/20
摘要： In a horizontal drive circuit for a video display, means are provided for sensing the horizontal output pulse used to energize the high voltage sweep transformer and, in turn, the electrodes and deflection coils in a cathode ray tube (CRT). Horizontal output pulse height which represents not only the voltage applied to the CRT, but also retrace pulse duration is detected and utilized to terminate the video output when the horizontal pulse voltage level exceeds a predetermined value. Because this approach uses the collector pulse output of the horizontal output transistor to detect high voltage conditions, video shutdown during unsafe CRT operation is available not only for excessive peak voltage conditions, but also for improper retrace time operation due, for example, to sweep transformer malfunction.
摘要翻译：在用于视频显示器的水平驱动电路中，提供了用于感测用于激励高压扫描变压器的水平输出脉冲的装置，并且继而在阴极射线管（CRT）中感测电极和偏转线圈。当水平脉冲电压电平超过预定值时，水平输出脉冲高度不仅表示施加到CRT的电压，而且回扫脉冲持续时间被检测并用于终止视频输出。因为这种方法使用水平输出晶体管的集电极脉冲输出来检测高电压条件，所以在不安全的CRT操作期间的视频关断不仅可以用于过高的峰值电压条件，还可以用于不适当的回扫时间操作，例如由于扫描变压器故障。

2. 发明授权

US4645988A Temperature compensated drive circuit for CRT G2 grid 失效
标题翻译： CRT G2电网温度补偿驱动电路
公开(公告)号：US4645988A
公开(公告)日：1987-02-24
申请号：US808303
申请日：1985-12-11
申请人： George R. Gawell , Richard J. Steinmetz , Leroy A. Sutton
发明人： George R. Gawell , Richard J. Steinmetz , Leroy A. Sutton
IPC分类号： H04N5/68 , H01J29/52
CPC分类号： H04N5/68
摘要： A temperature compensated G2 grid drive circuit for use with a video display having a high voltage section supplying a high voltage signal to a cathode, filament and G2 grid of a CRT, wherein the high voltage section has a negative temperature coefficient, includes an input terminal for receiving the high voltage signal and a temperature compensating circuit coupled between the input terminal and the G2 grid of the CRT. The temperature compensating circuit is characterized as having a slightly positive temperature coefficient for maintaining the brightness of the video display substantially constant by driving the G2 grid for compensating for variations with temperature in the high voltage signal supplied to the cathode, filament and G2 grid.
摘要翻译：一种用于具有向CRT的阴极，灯丝和G2栅极提供高电压信号的高电压部分的视频显示器的温度补偿G2栅极驱动电路，其中所述高压部分具有负温度系数，包括输入端子用于接收高压信号和耦合在CRT的输入端和G2栅之间的温度补偿电路。温度补偿电路的特征在于具有稍微正的温度系数，用于通过驱动G2电网来维持视频显示器的亮度基本恒定，以补偿提供给阴极，灯丝和G2电网的高电压信号中的温度变化。

3. 发明授权

US4321512A Regulated video display terminal power supply 失效
标题翻译：监控视频显示终端电源
公开(公告)号：US4321512A
公开(公告)日：1982-03-23
申请号：US179328
申请日：1980-08-18
申请人： Robert J. Alvord , Gregory J. Beaumont , Richard J. Steinmetz
发明人： Robert J. Alvord , Gregory J. Beaumont , Richard J. Steinmetz
IPC分类号： H04N3/18 , H01J29/70
CPC分类号： H04N3/18
摘要： Disclosed is a power supply having transformer isolation which is capable of providing a plurality of precisely regulated output voltage levels. This regulated power supply is particularly adapted for use in a video display terminal because the output voltages may be scan-derived for improved video presentation with a plurality of precise voltage levels for driving various terminal logic levels provided by a single DC signal source.
摘要翻译：公开了具有变压器隔离的电源，其能够提供多个精确调节的输出电压电平。该调节电源特别适用于视频显示终端，因为输出电压可以是扫描导出的，以改善具有用于驱动由单个DC信号源提供的各种终端逻辑电平的精确电压电平的视频呈现。

4. 外观设计

USD289214S Control panel for a sanitation system for food preparation machinery 失效
公开(公告)号：USD289214S
公开(公告)日：1987-04-07
申请号：US538208
申请日：1983-10-03
申请人： Richard J. Steinmetz
设计人： Richard J. Steinmetz

5. 发明授权

US4275338A Anti-spot burn protection for CRT 失效
标题翻译： CRT防点燃保护
公开(公告)号：US4275338A
公开(公告)日：1981-06-23
申请号：US76885
申请日：1979-09-19
申请人： Wayne Grocki , Richard J. Steinmetz
发明人： Wayne Grocki , Richard J. Steinmetz
IPC分类号： H04N3/20 , H01J29/52
CPC分类号： H04N3/20
摘要： A video amplifier circuit for a cathode ray tube in a video display includes an anti-spot burn protection system for preventing damage to the fluorescent screen when deflection voltages are removed as in tube turn-off. A diode network in the video amplifier circuit controls the rate of voltage decay on the CRT's cathode and brightness control grid following the removal of power, maintaining a pre-determined brightness control grid-cathode voltage differential thereby precluding tube turn-on.
摘要翻译：用于视频显示器中的阴极射线管的视频放大器电路包括防点燃烧保护系统，用于在管截止时去除偏转电压时防止对荧光屏的损坏。视频放大器电路中的二极管网络控制CRT阴极和亮度控制网格上的电压衰减速率，维持预定的亮度控制栅极 - 阴极电压差，从而阻止管接通。

6. 发明授权

US4263615A Horizontal drive circuit for video display 失效
标题翻译：水平驱动电路用于视频显示
公开(公告)号：US4263615A
公开(公告)日：1981-04-21
申请号：US77517
申请日：1979-09-20
申请人： Richard J. Steinmetz , Gregory J. Beaumont
发明人： Richard J. Steinmetz , Gregory J. Beaumont
IPC分类号： H04N5/12 , H04N5/04
CPC分类号： H04N5/12
摘要： Disclosed is a horizontal drive system and method for operating a video display capable of precisely controlling over a wide timing range the interval between the arrival of the leading edge of the input drive pulse and the initiation of the flyback pulse thus permitting the horizontal output to the video display to be synchronized to a great variety of horizontal drive input signals. The leading edge of the horizontal drive pulse triggers a variable time delay monostable multivibrator, the locked output signal of which is coupled to a precision astable multivibrator. Potentiometer adjustment of the monostable multivibrator provides for adjusting video information position with respect to raster scan while the astable multivibrator acts as the oscillator in synchronizing horizontal sweep circuitry to the horizontal input drive signal.
摘要翻译：公开了一种用于操作视频显示器的水平驱动系统和方法，该视频显示器能够在宽的定时范围内精确地控制输入驱动脉冲的前沿到达之间的间隔和启动回扫脉冲，从而允许水平输出到视频显示与多种水平驱动输入信号同步。水平驱动脉冲的前沿触发可变时间延迟单稳态多谐振荡器，其锁定输出信号耦合到精密的非稳态多谐振荡器。单稳态多谐振荡器的电位器调节提供了调整相对于光栅扫描的视频信息位置，而不稳定的多谐振荡器用作将水平扫描电路与水平输入驱动信号同步的振荡器。

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