公开(公告)号：US4730499A

公开(公告)日：1988-03-15

申请号：US927012

申请日：1986-11-04

申请人： Edward P. Gianella ,  Bernard R. Katz ,  Stephen A. Bauman

发明人： Edward P. Gianella ,  Bernard R. Katz ,  Stephen A. Bauman

IPC分类号： G01F1/74 ,  G01F1/78 ,  G01G11/00 ,  G01G11/04 ,  G01P5/00 ,  G01F1/00 ,  G01G11/06

CPC分类号： G01G11/043 ,  G01G11/003

摘要： In a system and a method for measuring the rate at which powdered material flows from a container wherein a first analog signal representing the weight of the container is produced, the analog signal is differentiated to obtain a second signal corresponding to the flow rate and the second signal is passed through an adaptive filter. The adaptive filter includes a first low pass filter having a first time constant for producing a third signal and a second low-pass filter to produce a fourth signal. The time constant of the second filter is varied between a minimum equal to the time constant of the first filter and a maximum equal to a preselected multiple of the time constant of the first filter by comparing the absolute value of the difference between the third and fourth signals to a preselected deadband and effecting the maximum time constant when the absolute value of the difference is less than the deadband and the minimum time constant when the absolute value of the difference is greater than the deadband. A combination signal is provided from the fourth signal during the time when the absolute value of the difference is less than the deadband and the third signal during the time when the absolute value of the difference is greater than the deadband. The combination signal is scaled to indicate the powdered material flow rate.

摘要翻译： 在用于测量粉末材料从其中产生表示容器的重量的第一模拟信号的容器流出的速率的系统和方法中，模拟信号被微分以获得对应于流量的第二信号，而第二信号 信号通过自适应滤波器。 自适应滤波器包括具有用于产生第三信号的第一时间常数和产生第四信号的第二低通滤波器的第一低通滤波器。 第二滤波器的时间常数在等于第一滤波器的时间常数的最小值和等于第一滤波器的时间常数的预定倍数的最大值之间通过比较第三和第四滤波器的差的绝对值而变化 当差的绝对值大于死区时，当差的绝对值小于死区和最小时间常数时，发出预选死区并且实现最大时间常数。 在差的绝对值大于死区的时间期间差异的绝对值小于死区和第三信号的时间期间，从第四信号提供组合信号。 组合信号被缩放以指示粉末材料流速。

公开(公告)号：US4293875A

公开(公告)日：1981-10-06

申请号：US109195

申请日：1980-01-03

申请人： Bernard R. Katz

发明人： Bernard R. Katz

IPC分类号： H04N5/14

CPC分类号： H04N5/148

摘要： The video amplifier circuit comprises a complementary symmetrical arrangement of a first and second solid state transistor element with the video input source coupled through a level shifting circuit to the first element and through a DC level shifting circuit to the second element and with means provided for operating each element in a clamped mode approaching saturation. Additional circuit modifications include means for modulating the video input signal with a high frequency signal to cause continuous gray scale variation.

摘要翻译： 视频放大器电路包括第一和第二固态晶体管元件的互补对称布置，其中视频输入源通过电平移位电路耦合到第一元件，并通过DC电平移位电路连接到第二元件，并具有用于操作的装置 夹紧模式中的每个元件接近饱和。 附加电路修改包括用高频信号调制视频输入信号以产生连续灰度变化的装置。

公开(公告)号：US4291603A

公开(公告)日：1981-09-29

申请号：US964704

申请日：1978-11-29

申请人： Bernard R. Katz

发明人： Bernard R. Katz

IPC分类号： G10H5/04 ,  G10H1/00 ,  H04M1/00

CPC分类号： G10H5/04

摘要： An electronic organ has a tone generating system for producing tones corresponding to notes of a musical scale. The tones and combinations thereof are selectable to provide different characteristics or "voices" which duplicate the various voices which are selectable on a pipe organ. The character of each such voice is determined by a single generator. The character of the output tone on a per manual basis is alterable by substituting or combining the outputs of different generators. The signal produced in this manner is sampled at a rate which translates it to an audio frequency.

摘要翻译： 电子琴具有用于产生对应于音阶的音符的音调的乐音产生系统。 可以选择其音调和组合，以提供不同的特征或“声音”，它们复制在管风琴上可选择的各种声音。 每个这样的声音的特征由单个发生器确定。 通过替代或组合不同发电机的输出可以改变每个手动输出音的特性。 以这种方式产生的信号以将其转换为音频的速率进行采样。

公开(公告)号：US6163253A

公开(公告)日：2000-12-19

申请号：US182478

申请日：1998-10-30

申请人： Michael Yaron ,  Bernard R. Katz ,  Karl E. Geisel

发明人： Michael Yaron ,  Bernard R. Katz ,  Karl E. Geisel

IPC分类号： B60Q1/48 ,  B60Q1/00

CPC分类号： B60Q9/007

摘要： A sensing and indicating device is mounted at a fixed location and uses transmitted and reflected acoustic or electrical energy to determine the distance between the sensor and an approaching vehicle. The sensor provides visual and/or audible indication of the distance between the vehicle and the sensor. The driver of the vehicle uses that displayed or audible information to locate the vehicle within a defined space or envelope, e.g., within a garage. The sensor and indicator may also be located laterally with respect to the vehicle so that the distance between the vehicle side and the sensor can be determined whereby the vehicle can be located laterally within the defined space or envelope. The device remains active at all times, precluding any need for manual intervention to activate it, without compromising power consumption. A distance dependent means for dynamic desensitization of the receiver subsystem is provided so as to ignore reflection artifacts from irrelevant off-axis objects close to the sensor and to avoid false triggering due to ringing within the sensor. The distance dependence of the desensitization is implemented by using an exponentially decaying reference signal as a dynamic detection amplitude threshold for comparison against the amplitude of received echo signals for a predetermined period of time after exciting the sensor with a transmit pulse. Shortened transmit excitation burst times are also used when measuring at close ranges to reduce sensor ring time.

摘要翻译： 感测和指示装置安装在固定位置，并使用透射和反射的声学或电能来确定传感器和接近的车辆之间的距离。 传感器提供车辆和传感器之间距离的视觉和/或听觉指示。 车辆的驾驶员使用显示的或可听见的信息来将车辆定位在限定的空间或信封内，例如在车库内。 传感器和指示器也可以相对于车辆横向定位，使得可以确定车辆侧面和传感器之间的距离，从而车辆可以横向定位在限定的空间或信封内。 设备始终保持活动状态，不需要手动干预来激活它，而不会影响功耗。 提供用于接收器子系统的动态脱敏的距离依赖装置，以便忽略靠近传感器的不相关的离轴物体的反射伪影，并避免由于传感器内的振铃而引起的错误触发。 通过使用指数衰减参考信号作为动态检测振幅阈值来实现脱敏的距离依赖性，用于在用发射脉冲激励传感器之后的预定时间段内与收到的回波信号的幅度进行比较。 在近距离测量时也会使用缩短的发射激发脉冲串时间，以减少传感器振铃时间。