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1.发明授权
公开(公告)号：US3766313A
公开(公告)日：1973-10-16
申请号：US3766313D
申请日：1972-08-07
Applicant: RCA CORP
CPC classification number: G06F15/02
Abstract: A desk top calculator or other generator of digitized video signals is coupled to the antenna terminals of a conventional television receiver. A circuit within the generator translates the digitized video signals into a modulated TV R-F picture carrier. The circuit includes a radio-frequency source, and a network of diode switchable attenuators. The latter are operated in response to control signals for switching the radio-frequency signal between three discrete levels. Two of the levels are for the display of black and white, respectively, and the third level is a ''''blacker than black'''' synchronization level.
Abstract translation: 数字化视频信号的桌面计算器或其它发生器耦合到常规电视接收机的天线端子。 发生器内的电路将数字化的视频信号转换成调制的TV R-F图像载体。 该电路包括射频源和二极管可切换衰减器的网络。 后者响应用于在三个离散电平之间切换射频信号的控制信号来操作。 其中两个级别分别用于显示黑白，第三级是“黑色比黑色”同步级别。
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2.发明授权Transistor oscillator with diode in feedback circuit providing amplitude stabilization 失效带二极管的晶体管振荡器提供放大倍数稳定的反馈电路
公开(公告)号：US3855550A
公开(公告)日：1974-12-17
申请号：US39141773
申请日：1973-08-24
Applicant: RCA CORP
Inventor： CARLSON D
CPC classification number: H03B5/1805 , H03B2201/031 , H03B2201/038
Abstract: A voltage-dependent capacitor tuned oscillator employs a diode as a coupling element between an amplifying device and a resonant circuit to provide a feedback signal to the amplifying device required to sustain oscillations. The diode further provides charging current for a capacitor in the resonant circuit when a first polarity portion of the oscillations increase above a predetermined level. The charge on the capacitor decreases the feedback level, thus stabilizing the level of oscillations in the resonant circuit for each frequency to which the oscillator is tuned.
Abstract translation: 电压相关的电容调谐振荡器使用二极管作为放大器件和谐振电路之间的耦合元件，以向保持振荡所需的放大器件提供反馈信号。 当振荡的第一极性部分增加到高于预定电平时，二极管进一步向谐振电路中的电容器提供充电电流。 电容器上的电荷会降低反馈电平，从而稳定振荡器调谐的每个频率的谐振电路中的振荡电平。
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3.发明授权
公开(公告)号：US3811855A
公开(公告)日：1974-05-21
申请号：US29597472
申请日：1972-10-10
Applicant: RCA CORP
Inventor： STOCKDALE G , CARLSON D , HANG K
CPC classification number: H01J29/24 , C03C23/009
Abstract: A method that modifies the composition of a region adjacent the surface of an ion conducting glass body comprises applying an electric field, at an elevated temperature, between opposite surfaces of the glass body to remove substantially all monovalent and most divalent ions from the region. A desired ion-depleted region occurs adjacent the anode-contacted surface of the glass body if the anode is a blocking electrode of relatively nonreactive material with the components of the glass body. A preferred blocking anode is a porous layer of colloidal particles of graphite. A particulate graphite anode allows oxygen evolving from the glass to escape therethrough, or combine with the evolving oxygen to produce easily removable gaseous byproducts, and does not supply cations to the glass body.
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公开(公告)号：US3792359A
公开(公告)日：1974-02-12
申请号：US3792359D
申请日：1971-04-14
Applicant: RCA CORP
Inventor： CARLSON D
CPC classification number: H03G3/3052
Abstract: A common base amplifier used for high frequency amplification has an automatic gain control voltage applied thereto to vary the gain in a reverse mode. As the gain of the transistor is decreased, a unilateral current conduction device, coupled to the emitter electrode or input of the amplifier, is caused to conduct. The conduction of the unilateral device causes the voltages between the electrodes of the amplifier to remain constant, while further causing additional impedance shunting of the transistor to maintain the input impedance of the amplifier relatively constant during AGC operation.
Abstract translation: 用于高频放大的公共基极放大器具有施加到其上的自动增益控制电压以在反向模式中改变增益。 随着晶体管的增益减小，耦合到发射极或放大器的输入端的单向电流传导器件被导通。 单向器件的导通导致放大器电极之间的电压保持恒定，同时进一步引起晶体管的附加阻抗分流，以在AGC操作期间保持放大器的输入阻抗相对恒定。
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