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1.发明申请公开(公告)号：US20110095834A1
公开(公告)日：2011-04-28
申请号：US12589430
申请日：2009-10-23
Applicant: Orest Fedan
Inventor： Orest Fedan
IPC: H03B5/30
Abstract: Dual table temperature compensation for a voltage controlled crystal oscillator is achieved by sensing the temperature of the voltage controlled crystal oscillator (VCXO), retrieving from a first table the frequency error with variations in the temperature sensed, retrieving from a second table the oscillator control voltage corresponding to the frequency error from the first table and applying the oscillator control voltage to the VCXO.
Abstract translation: 通过感应压控晶体振荡器（VCXO）的温度来实现压控晶体振荡器的双表温度补偿，从第一个表中检索出频率误差随着感测温度的变化，从第二个表中检索振荡器的控制电压 对应于来自第一表的频率误差，并将振荡器控制电压施加到VCXO。
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公开(公告)号：US5028889A
公开(公告)日：1991-07-02
申请号：US398743
申请日：1989-08-25
Applicant: Orest Fedan
Inventor： Orest Fedan
IPC: H03B5/02
CPC classification number: H03B5/02
Abstract: Disclosed is an oscillator circuit comprised of a sharp bandpass filter having an input and an output; a linear gain stage having an input and an output, the output of the sharp bandpass filter being connected to the input of the linear stage; a limiter having an input and an output, the output of the linear stage being connected to the input of the limiter; and a feedback loop having an input and an output, the output of the limiter being connected to the input of the feedback loop and the output of the feedback loop being connected to the input of the sharp bandpass filter, wherein the improvement being comprised of the limiter being a symmetrical active clamp.
Abstract translation: 公开了一种由具有输入和输出的尖锐带通滤波器组成的振荡器电路; 具有输入和输出的线性增益级，所述尖锐带通滤波器的输出连接到所述线性级的输入; 具有输入和输出的限幅器，线性级的输出端连接到限幅器的输入端; 以及具有输入和输出的反馈回路，所述限制器的输出连接到所述反馈回路的输入端，并且所述反馈回路的输出连接到所述尖锐带通滤波器的输入端，其中所述改进包括 限制器是一个对称的有源钳位。
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公开(公告)号：US08339220B2
公开(公告)日：2012-12-25
申请号：US12586054
申请日：2009-09-16
Applicant: Orest Fedan
Inventor： Orest Fedan
CPC classification number: H03H9/6406 , H03H2007/013
Abstract: A SAW resonator filter including a SAW resonator, and a first inductive reactance in parallel with the SAW resonator for shifting the null points below and above the center frequency for establishing substantially symmetrical attenuation about the center frequency.
Abstract translation: SAW谐振器滤波器，包括SAW谐振器和与SAW谐振器并联的第一感抗电抗器，用于将低于和高于中心频率的零点移位，以建立关于中心频率的基本上对称的衰减。
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公开(公告)号：US20080036667A1
公开(公告)日：2008-02-14
申请号：US11502191
申请日：2006-08-10
Applicant: Orest Fedan
Inventor： Orest Fedan
IPC: H01Q11/12
CPC classification number: H01Q7/00 , H01Q1/3233
Abstract: A transmission line resonator loop antenna includes a transmission line resonator for receiving an input excitation signal and producing a predetermined resonant output signal which is substantially phase reversed relative to the input excitation signal; and a loop antenna having one end responsive to the phase reversed output signal and the other end responsive to a reference excitation signal for maintaining the predetermined resonance.
Abstract translation: 传输线谐振器环形天线包括用于接收输入激励信号并产生相对于输入激励信号基本相反的预定谐振输出信号的传输线谐振器; 以及环形天线，其一端响应于相位反转的输出信号，另一端响应于用于维持预定谐振的基准激励信号。
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公开(公告)号：US10084625B2
公开(公告)日：2018-09-25
申请号：US15436777
申请日：2017-02-18
Applicant: Orest Fedan
Inventor： Orest Fedan
CPC classification number: H04W52/52 , H04R25/554
Abstract: A wireless microphone with the remote transmitter using a duplicate of the radio frequency determining circuits of the radio receiver to insure that the remote transmitter frequency tracks the temperature drift of the radio receiver frequency, and also with a compressor to reduce the dynamic range of the sounds captured by the microphone. The superheterodyne radio receiver having small size and low current consumption by wiring the elements of the receiver in series rather than in parallel with the battery avoiding the use of switching regulators and also by using the same amplifier to amplify the antenna signal and the local oscillator signal and by adjusting the local oscillator current based on the strength of the received radio signal. The wires between the radio receiver and the speaker are part of the antenna for the radio receiver.
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Patent Agency Ranking
公开(公告)号：US08242810B2
公开(公告)日：2012-08-14
申请号：US12589367
申请日：2009-10-22
Applicant: Orest Fedan , Stephen Bourque
Inventor： Orest Fedan , Stephen Bourque
CPC classification number: H03K5/082
Abstract: An improved fast settling bit slicing comparator circuit includes a comparator having a non-inverting and inverting input; the non-inverting input receiving an input signal; a filter circuit for receiving the input signal and being connected with the inverting input of the comparator; a positive feedback circuit interconnected between the output of the comparator and the non-inverting input of the comparator for introducing a predetermined hysteresis offset; the filter circuit including a filter resistance and filter capacitance having a reduced time constant sufficient to compensate for at least a portion of the hysteresis offset. Additionally, the positive feedback circuit may be interconnected with the inverting input of the comparator through the filter circuit for gradually reducing the effect of the hysteresis offset by reducing the differential voltage between the inverting and non-inverting inputs.
Abstract translation: 改进的快速建立位切片比较器电路包括具有非反相和反相输入的比较器; 所述同相输入端接收输入信号; 滤波电路，用于接收输入信号并与比较器的反相输入端相连; 在比较器的输出和用于引入预定的滞后偏移的比较器的非反相输入端之间互连的正反馈电路; 滤波器电路包括具有足以补偿至少一部分磁滞偏移的减小的时间常数的滤波电阻和滤波电容。 此外，正反馈电路可以通过滤波电路与比较器的反相输入互连，通过减小反相和非反相输入之间的差分电压来逐渐减小滞后偏移的影响。
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公开(公告)号：US20110095790A1
公开(公告)日：2011-04-28
申请号：US12589367
申请日：2009-10-22
Applicant: Orest Fedan , Stephen Bourque
Inventor： Orest Fedan , Stephen Bourque
IPC: H03K5/22
CPC classification number: H03K5/082
Abstract: An improved fast settling bit slicing comparator circuit includes a comparator having a non-inverting and inverting input; the non-inverting input receiving an input signal; a filter circuit for receiving the input signal and being connected with the inverting input of the comparator; a positive feedback circuit interconnected between the output of the comparator and the non-inverting input of the comparator for introducing a predetermined hysteresis offset; the filter circuit including a filter resistance and filter capacitance having a reduced time constant sufficient to compensate for at least a portion of the hysteresis offset. Additionally, the positive feedback circuit may be interconnected with the inverting input of the comparator through the filter circuit for gradually reducing the effect of the hysteresis offset by reducing the differential voltage between the inverting and non-inverting inputs.
Abstract translation: 改进的快速建立位切片比较器电路包括具有非反相和反相输入的比较器; 所述同相输入端接收输入信号; 滤波电路，用于接收输入信号并与比较器的反相输入端相连; 在比较器的输出和用于引入预定的滞后偏移的比较器的非反相输入端之间互连的正反馈电路; 滤波器电路包括具有足以补偿至少一部分磁滞偏移的减小的时间常数的滤波电阻和滤波电容。 此外，正反馈电路可以通过滤波电路与比较器的反相输入互连，通过减小反相和非反相输入之间的差分电压来逐渐减小滞后偏移的影响。
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公开(公告)号：US6088251A
公开(公告)日：2000-07-11
申请号：US350682
申请日：1999-07-09
Applicant: Orest Fedan
Inventor： Orest Fedan
CPC classification number: H02M3/1563
Abstract: A control system for a switching regulator which linearizes the relationship between the control input signal and the duty ratio of the pulse output. A logarithmic signal generator furnishes a logarithmically increasing signal to a comparator circuit. The comparator circuit compares the logarithmic signal to a control input signal and triggers a pulse generator such that the frequency of the pulses has an exponential relationship to the control input signal. The pulses are averaged and the average is subtracted from a reference signal. The result is then used as the input to the logarithmic signal generator. The resulting relationship between the duty ratio of the pulse output and the control input signal is linear.
Abstract translation: 用于开关调节器的控制系统，其将控制输入信号与脉冲输出的占空比之间的关系线性化。 对数信号发生器向比较器电路提供对数增加的信号。 比较器电路将对数信号与控制输入信号进行比较，并触发脉冲发生器，使得脉冲的频率与控制输入信号成指数关系。 脉冲被平均，并从参考信号中减去平均值。 然后将结果用作对数信号发生器的输入。 所产生的脉冲输出的占空比与控制输入信号之间的关系是线性的。
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公开(公告)号：US10958087B2
公开(公告)日：2021-03-23
申请号：US16041767
申请日：2018-07-21
Applicant: Orest Fedan
Inventor： Orest Fedan
Abstract: A battery protection system with a voltage sensing circuit for sensing the voltage of a battery and disconnecting all loads from the battery, including the voltage sensing circuit itself, when the voltage of the battery drops below a preset limit or when a battery charger is connected to the battery. The battery protection system reconnects the voltage sensing circuit upon disconnection of the battery charger.
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公开(公告)号：US20180241595A1
公开(公告)日：2018-08-23
申请号：US15436777
申请日：2017-02-18
Applicant: Orest Fedan
Inventor： Orest Fedan
CPC classification number: H04L27/063 , H04W52/52
Abstract: A wireless microphone with the remote transmitter using a duplicate of the radio frequency determining circuits of the radio receiver to insure that the remote transmitter frequency tracks the temperature drift of the radio receiver frequency, and also with a compressor to reduce the dynamic range of the sounds captured by the microphone. The superheterodyne radio receiver having small size and low current consumption by wiring the elements of the receiver in series rather than in parallel with the battery avoiding the use of switching regulators and also by using the same amplifier to amplify the antenna signal and the local oscillator signal and by adjusting the local oscillator current based on the strength of the received radio signal. The wires between the radio receiver and the speaker are part of the antenna for the radio receiver.
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