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1. 发明授权

US3668414A Transition integration switching amplifier 失效
标题翻译：过渡集成开关放大器
公开(公告)号：US3668414A
公开(公告)日：1972-06-06
申请号：US3668414D
申请日：1970-03-31
申请人： XEROX CORP
发明人： NORIAN ROGER F , KONING VIRGIL H
IPC分类号： H03K6/02 , G05F1/44 , H02M7/538 , H02M7/5381 , H02P6/14 , H02P25/02 , G05F1/08
CPC分类号： H02M7/5381 , G05F1/44 , H02P6/14 , H02P25/024
摘要： A transition integration switching amplifier for controlling the application of a source voltage for driving an inductive load such as a four-pole, capacitor phased, hysteresis synchronous motor. Symmetrical circuits are provided wherein identical signals of opposite phase control the operation of transistor switches for application of the voltage source to a center tapped motor stator. The signals would be applied to a coupling transistor, the output of which controls the input of the transistor switches. A collector to base capacitor forces a controlled transition between the saturated and cut-off states of the transistor and eliminates any high voltage transients across the transistor that may arise due to energy stored in the inductance of the motor stator.
摘要翻译：一种转换积分开关放大器，用于控制用于驱动感性负载的源极电压的应用，例如四极电容器相位滞环同步电动机。提供了对称电路，其中相反相位的相同信号控制用于将电压源施加到中心抽头电动机定子的晶体管开关的操作。信号将被施加到耦合晶体管，其输出控制晶体管开关的输入。基极电容器的集电极强制晶体管的饱和和截止状态之间的受控过渡，并消除由于存储在电动机定子的电感中的能量而产生的任何高电压瞬变。

2. 发明授权

US3700990A Braking methods and apparatus 失效
标题翻译：制动方法和装置
公开(公告)号：US3700990A
公开(公告)日：1972-10-24
申请号：US3700990D
申请日：1971-02-25
申请人： XEROX CORP
发明人： SHUEY DAVID R , NORIAN ROGER F
IPC分类号： B23Q15/26 , H02P3/14
CPC分类号： B23Q15/26
摘要： Braking methods and the apparatus therefor are provided in accordance with the teachings of the present invention. According to one embodiment of this invention the rotation of a rotating device is detected and the angular disposition thereof is determined. The relative angular disposition of said rotating device is compared with the time of occurrence of a condition requiring the arrest of said rotating device. A brake signal adapted to produce hysteresis braking of the rotating device is generated in accordance with the comparison, whereby the velocity of said rotating device is rapidly reduced such that said rotating device halts at a desired angular disposition.
摘要翻译：根据本发明的教导提供制动方法及其装置。根据本发明的一个实施例，检测旋转装置的旋转并确定其角度布置。将所述旋转装置的相对角度布置与需要停止所述旋转装置的状态的发生时间进行比较。根据比较产生适于产生旋转装置的滞后制动的制动信号，由此快速减小所述旋转装置的速度，使得所述旋转装置以期望的角度设置停止。

3. 发明授权

US3882272A Carrier detector 失效
标题翻译：载波检测器
公开(公告)号：US3882272A
公开(公告)日：1975-05-06
申请号：US42715773
申请日：1973-12-21
申请人： XEROX CORP
发明人： NORIAN ROGER F
IPC分类号： H03G3/34 , H04L1/20 , H04N1/327 , H04B1/16
CPC分类号： H04N1/327 , H03G3/341 , H04L1/206
摘要： A facsimile receiver wherein a negative peak detector is utilized at the input to the carrier detector circuit to enhance the system''s immunity to noise.
摘要翻译：一种传真接收机，其中在载波检测器电路的输入处使用负峰值检测器，以增强系统对噪声的抗扰度。

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