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    • 3. 发明授权
    • Motor actuating circuitry
    • 电机启动电路
    • US4189732A
    • 1980-02-19
    • US782746
    • 1977-03-30
    • Jerrold B. Atwater
    • Jerrold B. Atwater
    • G01S13/06G01S9/00
    • G01S13/06Y10S388/91
    • Motor driver/control apparatus employs a motor speed regulating amplifier configuration, e.g., two push-pull power amplifiers operable responsive to a motor speed-direction command input signal, and having the motor differentially connected between amplifier output ports. The amplifier(s) are supplied with an energizing potential of variable amplitude just sufficient for amplifier operation and to satisfy the then obtaining motor consumption. Accordingly, system power is effectively utilized; needless power drain avoided; and the amplifier cost and complexity is reduced since the amplifier need not dissipate inordinate source-supplied energy not required for motor actuation.In accordance with one further aspect of the present invention, a power supply switching regulator for a motor utilized in a radar application is operated at the radar pulse repetition rate. This produces a non-interferring zero frequency beat between the power supply and radar pulse rate in the radar receiver.
    • 电机驱动器/控制装置采用电动机调速放大器配置,例如可以响应于电动机速度方向命令输入信号操作的两个推挽功率放大器,并且使电动机差分连接在放大器输出端口之间。 为放大器提供可变幅度的通电电位,足以用于放大器操作并满足随后获得的电动机消耗。 因此,系统功率得到有效利用; 避免了不必要的功率消耗; 并且放大器的成本和复杂度降低,因为放大器不需要消耗电动机致动所不需要的过多的源供应能量。 根据本发明的另一方面,用于雷达应用中的用于电动机的电源开关调节器以雷达脉冲重复率工作。 这在雷达接收机中的电源和雷达脉冲频率之间产生非干扰零频率节拍。
    • 8. 发明授权
    • Fringe pattern phase detection system
    • 边缘图案相位检测系统
    • US4836681A
    • 1989-06-06
    • US867026
    • 1986-05-27
    • John G. Van SadersAndrew TarasevichMichael C. Reichenbach
    • John G. Van SadersAndrew TarasevichMichael C. Reichenbach
    • G01J9/02
    • G01J9/02G01J2009/0234
    • Electro-optical apparatus measures the average relative phase of an incident wave fringe pattern. The subject fringe, e.g., an interferometric pattern, passes through three sections of an optical mask, one characterized by fixed transmissivity and the other two by quadrature-displaced spatial fringe patterns. The light passing through each section is separately collected and detected to average the respective incident wave/mask section interactions. The phase of the incident fringe pattern relative to the mask is then determined by arithmetically processing the detected signals.In accordance with one aspect of the present invention, the subject fringe pattern is time modulated and the quadrature-shifted mask signals A-C coupled to obviate the requirement for the third, fixed transmissivity mask section.
    • 电光装置测量入射波纹图案的平均相对相位。 被摄体边缘(例如干涉图案)通过光学掩模的三个部分,其中一个特征在于固定的透射率,另外两个部分通过正交位移的空间条纹图案。 通过每个部分的光被单独收集和检测以平均相应的入射波/掩模部分相互作用。 然后通过对检测到的信号进行算术处理来确定入射条纹图案相对于掩模的相位。 根据本发明的一个方面,本发明的条纹图案是时间调制的,并且正交移位的掩模信号A-C耦合以消除对第三固定透射率掩模部分的要求。
    • 10. 发明授权
    • Self-clocking binary receiver
    • 自定时二进制接收机
    • US4497060A
    • 1985-01-29
    • US447956
    • 1982-12-08
    • John P. Yang
    • John P. Yang
    • H03M5/08H04L25/48H04L25/49H04L7/06
    • H04L25/4902
    • Binary data is transmitted as signals of two different pulsewidths to respectively represent logic "0" and "1". At the data receiver, the ratio of the pulsewidths is converted into a corresponding voltage ratio, which, in turn, is applied through a voltage divider to develop clock- and data-control signals at two different levels. Switching devices are respectively actuated whenever the clock- and data-control signals reach preset voltage levels to respectively produce self-synchronized clock and data pulses corresponding to the received binary data.
    • 二进制数据作为两个不同脉冲宽度的信号传输,分别表示逻辑“0”和“1”。 在数据接收器处,脉冲宽度的比率被转换成相应的电压比,反过来,电压比通过分压器施加以在两个不同的电平上开发时钟和数据控制信号。 每当时钟和数据控制信号达到预设电压电平,分别产生与所接收的二进制数据相对应的自同步时钟和数据脉冲时,分别启动开关装置。