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1. 发明授权

US4499767A Capacitance-type material level indicator 失效
公开(公告)号：US4499767A
公开(公告)日：1985-02-19
申请号：US411525
申请日：1982-08-25
申请人： George H. Fathauer , Charles F. Hood , Robin B. Runck
发明人： George H. Fathauer , Charles F. Hood , Robin B. Runck
IPC分类号： G01F23/26 , G01R35/00
CPC分类号： G01F23/266 , G01F23/268
摘要： A system and probe for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be responsive to variations in capacitance as a function of material level. An rf oscillator has an output coupled to the resonant circuit and to a phase detector for detecting variations in phase angle as a function of probe capacitance. Level detection circuitry is responsive to an output of the phase detector and to a reference signal indicative of a predetermined level of material for indicating material level as a function of a difference between capacitance at the probe and the reference signal. In the preferred embodiments of the invention disclosed, an automatic calibration circuit adjusts the resonance characteristics of the parallel resonant circuit of the reference signal indicative of a predetermined reference material level.

2. 发明授权

US4800755A Capacitance-type material level indicator 失效
标题翻译：电容式料位指示器
公开(公告)号：US4800755A
公开(公告)日：1989-01-31
申请号：US782466
申请日：1985-10-01
申请人： George H. Fathauer , Charles F. Hood
发明人： George H. Fathauer , Charles F. Hood
IPC分类号： G01F23/26 , G01R27/26
CPC分类号： G01F23/266 , G01F23/268
摘要： A system and probe for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be responsive to variations in capacitance as a function of material level. An rf oscillator has an output coupled to the resonant circuit and to a phase detector for detecting variations in phase angle as a function of probe capacitance. Level detection circuitry is responsive to an output of the phase detector and to a reference signal indicative of a predetermined level of material for indicating material level as a function of a difference between capacitance at the probe and the reference signal. In the preferred embodiments of the invention disclosed, an automatic calibration circuit adjusts the resonance characteristics of the parallel resonant circuit of the reference signal indicative of a predetermined reference material level.
摘要翻译：一种用于指示容器中的材料的水平作为材料电容的函数的系统和探针，其包括谐振电路，该谐振电路包括适于设置在容器中的电容探针，以便响应于作为材料水平的函数的电容变化。 RF振荡器具有耦合到谐振电路的输出端和用于检测作为探头电容的函数的相位角变化的相位检测器。电平检测电路响应于相位检测器的输出和指示用于指示材料电平的预定水平的参考信号，作为探针上的电容和参考信号之间的差异的函数。在所公开的本发明的优选实施例中，自动校准电路调节并联谐振电路的谐振特性，该参考信号指示预定的参考材料电平。

3. 发明授权

US4555941A Capacitance-type material level indicator 失效
公开(公告)号：US4555941A
公开(公告)日：1985-12-03
申请号：US652854
申请日：1984-09-21
申请人： George H. Fathauer , Charles F. Hood
发明人： George H. Fathauer , Charles F. Hood
IPC分类号： G01F23/26 , G01R27/26
CPC分类号： G01F23/266 , G01F23/268
摘要： A system and probe for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be responsive to variations in capacitance as a function of material level. An rf oscillator has an output coupled to the resonant circuit and to a phase detector for detecting variations in phase angle as a function of probe capacitance. Level detection circuitry is responsive to an output of the phase detector and to a reference signal indicative of a predetermined level of material for indicating material level as a function of a difference between capacitance at the probe and the reference signal. In the preferred embodiments of the invention disclosed, an automatic calibration circuit adjusts the resonance characteristics of the parallel resonant circuit of the reference signal indicative of a predetermined reference material level.

4. 发明授权

US5245873A Capacitance-type material level indicator and method of operation 失效
标题翻译：电容式物位指示器及操作方法
公开(公告)号：US5245873A
公开(公告)日：1993-09-21
申请号：US536951
申请日：1990-06-11
申请人： George H. Fathauer , Charles F. Hood
发明人： George H. Fathauer , Charles F. Hood
IPC分类号： G01F23/26
CPC分类号： G01F23/266 , G01F23/268 , Y10T307/779
摘要： A system and probe for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be responsive to variations in capacitance as a function of material level. An rf oscillator has an output coupled to the resonant circuit and to a phase detector for detecting variations in phase angle as a function of probe capacitance. Level detection circuitry is responsive to an output of the phase detector and to a reference signal indicative of a predetermined level of material for indicating material level as a function of a difference between capacitance at the probe and the reference signal. In the preferred embodiments of the invention disclosed, an automatic calibration circuit adjusts the resonance characteristics of the parallel resonant circuit of the reference signal indicative of a predetermined reference material level.
摘要翻译：一种用于指示容器中的材料的水平作为材料电容的函数的系统和探针，其包括谐振电路，该谐振电路包括适于设置在容器中的电容探针，以便响应于作为材料水平的函数的电容变化。 RF振荡器具有耦合到谐振电路的输出端和用于检测作为探头电容的函数的相位角变化的相位检测器。电平检测电路响应于相位检测器的输出和指示用于指示材料电平的预定水平的参考信号，作为探针上的电容和参考信号之间的差异的函数。在所公开的本发明的优选实施例中，自动校准电路调节并联谐振电路的谐振特性，该参考信号指示预定的参考材料电平。

5. 发明授权

US4499766A Capacitance-type material level indicator 失效
标题翻译：电容式料位指示器
公开(公告)号：US4499766A
公开(公告)日：1985-02-19
申请号：US411527
申请日：1982-08-25
申请人： George H. Fathauer , Charles F. Hood
发明人： George H. Fathauer , Charles F. Hood
IPC分类号： G01F23/26 , G01R27/26 , G01R35/00
CPC分类号： G01F23/268 , G01F23/266 , Y10T307/779
摘要： A system and probe for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be responsive to variations in capacitance as a function of material level. An rf oscillator has an output coupled to the resonant circuit and to a phase detector for detecting variations in phase angle as a function of probe capacitance. Level detection circuitry is responsive to an output of the phase detector and to a reference signal indicative of a predetermined level of material for indicating material level as a function of a difference between capacitance at the probe and the reference signal. In the preferred embodiments of the invention disclosed, an automatic calibration circuit adjusts the resonance characteristics of the parallel resonant circuit of the reference signal indicative of a predetermined reference material level.
摘要翻译：一种用于指示容器中的材料的水平作为材料电容的函数的系统和探针，其包括谐振电路，该谐振电路包括适于设置在容器中的电容探针，以便响应于作为材料水平的函数的电容变化。 RF振荡器具有耦合到谐振电路的输出端和用于检测作为探头电容的函数的相位角变化的相位检测器。电平检测电路响应于相位检测器的输出和指示用于指示材料电平的预定水平的参考信号，作为探针上的电容和参考信号之间的差异的函数。在所公开的本发明的优选实施例中，自动校准电路调节并联谐振电路的谐振特性，该参考信号指示预定的参考材料电平。

6. 发明授权

US4467140A Microprocessor-based cordless telephone system 失效
标题翻译：基于微处理器的无绳电话系统
公开(公告)号：US4467140A
公开(公告)日：1984-08-21
申请号：US259787
申请日：1981-05-01
申请人： George H. Fathauer , Warren L. Williamson
发明人： George H. Fathauer , Warren L. Williamson
IPC分类号： H04M1/725 , H04Q7/04
CPC分类号： H04M1/72505
摘要： A cordless telephone system is provided which includes a base unit operatively coupled to a user's telephone lines and a relatively compact portable cordless handset. Both the base unit and the cordless handset include a radio transmitter and a receiver which form a full duplex two-way FM radio link wherein the transmitter of the base unit and the receiver of the cordless handset operate on a first non-CB frequency and the transmitter of the cordless handset and the receiver of the base unit operate on a second different and distinct non-CB frequency. Both the cordless handset and the base unit include signal-injecting circuitry whereby a portion of the transmitter signal is injected into the input of the receiver to provide the local oscillator function for that receiver without undesirable cross-talk between the transmitted and received signals. The cordless handset also includes a keyboard for entering dialing information, security code identification switches for entering a user's identification code, a logic network responsive to the entered dialing information and security code information for generating data words indicative thereof, and an FSK-encoder including circuitry for generating a subcarrier frequency tone and circuitry responsive to the subcarrier tone for generating FSK-encoded equivalents of the data words. The FSK-encoded data words and the subcarrier frequency tone are superimposed on an FM modulated carrier for transmission to the receiver of the base unit. The base unit includes a microprocessor-based control system for controlling substantially all operational functions including ringing signal generation, security identification, line seizure, dialing signal generation, memory storage and recall, muting during identification and dialing, selecting T/R or R/O operation, and the like.
摘要翻译：提供了一种无绳电话系统，其包括可操作地耦合到用户的电话线的基本单元和相对紧凑的便携式无绳手机。基本单元和无绳手机都包括形成全双工双向FM无线电链路的无线电发射机和接收机，其中基本单元的发射机和无绳电话的接收机在第一非CB频率上工作，并且无线手机的发射机和基本单元的接收机在第二个不同且不同的非CB频率下工作。无绳手机和基本单元都包括信号注入电路，由此一部分发射机信号被注入到接收机的输入端，以为该接收机提供本地振荡器功能，而不发送和接收信号之间的串扰。无绳手机还包括用于输入拨号信息的键盘，用于输入用户识别码的安全码识别开关，响应于输入的拨号信息的逻辑网络和用于生成指示其的数据字的安全码信息，以及包括电路的FSK编码器用于产生副载波频率音调和响应于子载波音调的电路，用于产生数据字的FSK编码等价物。 FSK编码数据字和子载波频率音调叠加在FM调制载波上，以传输到基本单元的接收机。基本单元包括基于微处理器的控制系统，用于基本上控制所有操作功能，包括振铃信号产生，安全识别，线路发送，拨号信号产生，存储器存储和调用，识别和拨号期间的静音，选择T / R或R / O 操作等。

7. 发明授权

US4398304A Scanning radio receiver including detector circuit for AM and FM reception 失效
标题翻译：扫描无线电接收机包括用于AM和FM接收的检测电路
公开(公告)号：US4398304A
公开(公告)日：1983-08-09
申请号：US290924
申请日：1981-08-07
申请人： George H. Fathauer , Wayne Holst
发明人： George H. Fathauer , Wayne Holst
IPC分类号： H03J1/00 , H03J7/18
CPC分类号： H03J1/0091
摘要： There is disclosed a scanning radio receiver for use on the frequencies assigned to the Public Safety Radio Services in which frequency modulation is used and which also will receive the aircraft band from 118 to 136 MHz in which amplitude modulation is used. A detector circuit is provided including separate AM and FM demodulators with there being a squelch circuit associated with the FM demodulator, the squelch circuit being operative in AM as well as FM reception. A window detector circuit for minimizing the effect of strong signals outside a desired band is also associated with the FM demodulator and is also operative during AM reception. Common circuits are used for both AM and FM reception, including common RF portions, a common first IF portion operative at 10.8 MHz, a common second mixer and stages of a second IF amplifier operative at 400 KHz.
摘要翻译：公开了一种在分配给公共安全无线电业务的频率上使用的扫描无线电接收机，其中使用频率调制，并且还将使用其中使用幅度调制的118至136MHz的飞机频带。提供了检测器电路，其包括单独的AM和FM解调器，其中存在与FM解调器相关的静噪电路，该静噪电路在AM和FM接收中可操作。用于最小化期望频带外的强信号的影响的窗口检测器电路也与FM解调器相关联，并且在AM接收期间也是可操作的。公共电路用于AM和FM接收，包括公共RF部分，在10.8MHz操作的公共第一IF部分，公共第二混频器和以400KHz工作的第二IF放大器级。

8. 发明授权

US4009799A Monitor for seed planting apparatus 失效
标题翻译：种子播种机监测
公开(公告)号：US4009799A
公开(公告)日：1977-03-01
申请号：US630253
申请日：1975-11-10
申请人： George H. Fathauer
发明人： George H. Fathauer
IPC分类号： A01C7/10 , A01C7/18
CPC分类号： A01C7/105 , A63B2243/0095 , Y10S111/903
摘要： A monitor for use in a multi-row seed planting apparatus is provided for detecting seeds passing from a seed bin to a plurality of seed dispensers and for indicating by row number an improperly operating dispenser. A seed sensor is placed in the seed flow path of each dispenser to provide an output signal indicating that seeds are continuously flowing along the seed flow path through the dispenser. A two-digit seven-segment readout display is provided on the monitor and is coupled to the seed dispenser through logic circuitry which energizes the readout display to indicate the row number of an improperly operating seed dispenser.
摘要翻译：提供用于多排种子播种装置的监视器，用于检测从种子仓传播到多个种子分配器的种子，以及用行号指示不适当操作的分配器。种子传感器被放置在每个分配器的种子流动路径中以提供指示种子沿着通过分配器的种子流动路径连续流动的输出信号。在监视器上提供两位数七段读出显示器，并通过逻辑电路耦合到种子分配器，该电路对读出的显示器进行激励，以指示不正确操作的种子分配器的行号。

9. 发明授权

US3979055A Weighing system for conveying means 失效
标题翻译：输送装置称重系统
公开(公告)号：US3979055A
公开(公告)日：1976-09-07
申请号：US466678
申请日：1974-05-03
申请人： George H. Fathauer , Wesley J. Bachman
发明人： George H. Fathauer , Wesley J. Bachman
IPC分类号： G01G11/18 , G01G11/14
CPC分类号： G01G11/18
摘要： A forage conveyor-scale apparatus includes a pivoted conveyor having a differential transformer load cell providing a weight signal. A Hall cell unit is coupled to the conveyor to produce a speed signal. An automatic gain amplifier is controlled by the speed signal to vary the energization of the transformer from an oscillator. The output voltage of the transformer is rectified and averaged to produce a DC analog rate weight signal which is connected to drive a rate weight BCD counter and a total weight BCD counter. The analog signal drives a triggered integrator to form a pulse train driving the total counter. A dual slope integrator is controlled by the analog signal to cyclically control the weight rate counter. A single readout is provided and connected to the rate weight counter. The output of the total counter is forced through the rate weight counter to the readout to display the total count. A comparator may respond to a present input and the total counter to automatically terminate delivery.
摘要翻译：饲料输送机秤装置包括具有提供重量信号的差动变压器负载传感器的枢转输送机。霍尔单元单元耦合到输送机以产生速度信号。自动增益放大器由速度信号控制，以改变变压器与振荡器的通电。变压器的输出电压被整流和平均，以产生一个直流模拟速率权重信号，该信号被连接以驱动速率权重BCD计数器和总重量BCD计数器。模拟信号驱动触发积分器，形成驱动总计数器的脉冲串。双斜率积分器由模拟信号控制，循环控制重量计数器。提供单个读数并连接到速率重量计数器。总计数器的输出强制通过读数的速率权重计数器显示总计数。比较器可以响应当前输入和总计数器来自动终止传送。

10. 发明授权

US4455679A Scanning radio receiver and frequency synthesizer therefor 失效
标题翻译：扫描收音机和频率合成器
公开(公告)号：US4455679A
公开(公告)日：1984-06-19
申请号：US313213
申请日：1981-10-20
申请人： George H. Fathauer , Warren L. Williamson
发明人： George H. Fathauer , Warren L. Williamson
IPC分类号： H03J1/00 , H03J7/18
CPC分类号： H03J1/005
摘要： There is disclosed a scanning radio receiver intended for use on the frequencies assigned to the Public Safety Radio Services and which is also operable for reception in the aircraft band from 118 MHz to 136 MHz. A voltage controlled oscillator is provided which is operable at frequencies up to nearly 175 MHz for producing an output signal for direct mixing with received signals in the low and high VHF bands as well as in the aircraft band and for tripling to provide a first local oscillator signal for UHF operation up to 512 MHz. A divider circuit is provided for direct countdown from the frequency of the voltage controlled oscillator to produce a low frequency signal for comparison with a fixed frequency signal of 5 KHz, or in the case of UHF operation, 4.167 KHz. The countdown circuitry along with the phase detector and divider circuits for producing the reference are all mounted on a single integrated circuit chip. Also, a shift register is provided on the chip for control of the divider circuits in response to data entered serially.
摘要翻译：公开了一种旨在用于分配给公共安全无线电服务的频率的扫描无线电接收机，其也可操作用于在118MHz至136MHz的飞机频带中进行接收。提供压控振荡器，其可在高达近似175MHz的频率操作，用于产生用于与低频和高VHF频带以及飞行器频带中的接收信号直接混合的输出信号，并且用于三倍以提供第一本地振荡器信号用于高达512 MHz的UHF操作。提供了一个分频电路，用于从压控振荡器的频率进行直接倒计时，以产生一个与5 KHz的固定频率信号进行比较的低频信号，或者在UHF操作情况下为4.167 KHz。倒数计时电路以及用于产生参考的相位检测器和分频器电路都安装在单个集成电路芯片上。此外，在芯片上提供移位寄存器以响应于串行输入的数据来控制分频器电路。

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