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公开(公告)号：US06255937B1
公开(公告)日：2001-07-03
申请号：US09446267
申请日：1999-12-20
Applicant: Toshihide Hamaguchi
Inventor： Toshihide Hamaguchi
IPC: G08B310
CPC classification number: B06B1/0215 , B06B2201/55 , B06B2201/70 , G10K9/12
Abstract: A notifying device adapted to give notification with both sound and vibration includes a notifying unit 2 which comprises a first vibrator drivable at an audio-frequency with a first drive signal for producing sound waves, and a second vibrator drivable with a second drive signal at a frequency, up to several hundred of hertz, lower than the driving frequency of the first vibrator for producing a perceivable vibration. A notifying signal generating circuit 5 is connected to the unit 2 via a switch 59. The circuit 5 comprises a sound signal generating circuit 57 for producing an intermittent first signal repeating on and off states with a predetermined period, a vibration signal generating circuit 58 for producing an intermittent second signal repeating on and off states with the same period as the first drive signal, and a synchronization circuit 56 for causing the respective circuits 57, 58 to produce the first drive signal and the second drive signal without any overlap between the on periods of these signals. This construction obviates marked increases in the power consumption of the device.
Abstract translation: 适于发出声音和振动通知的通知装置包括：通知单元2，其包括以音频驱动的第一振动器和用于产生声波的第一驱动信号;以及第二振动器，其具有第二驱动信号 频率高达几百赫兹，低于第一振动器的驱动频率以产生可感知的振动。 通知信号发生电路5经由开关59连接到单元2.电路5包括用于产生以预定周期重复开和关状态的间歇第一信号的声音信号发生电路57，用于 产生与第一驱动信号相同的周期的重复开启和关闭状态的间歇的第二信号;以及同步电路56，用于使各个电路57,58产生第一驱动信号和第二驱动信号， 这些信号的周期。 这种结构消除了设备功耗的显着增加。
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公开(公告)号：US06246153B1
公开(公告)日：2001-06-12
申请号：US09503674
申请日：2000-02-14
Applicant: Richard Patten Bishop , Clark Davis Boyd
Inventor： Richard Patten Bishop , Clark Davis Boyd
IPC: H01L41107
CPC classification number: H03F3/187 , B06B1/0238 , B06B2201/55 , H01L41/044 , H01L41/107
Abstract: A circuit including a transformer, preferably a laminated piezoelectric transducer, in combination with a positive feedback amplifier circuit, capable of serving: 1) to produce either an audible or ultrasonic signal; or 2) as an energy source capable of driving an auxiliary high voltage device with an initial and continuing low voltage source such as a battery.
Abstract translation: 包括与正反馈放大器电路组合的变压器，优选层压压电换能器的电路，其能够服务于：1）产生听觉或超声信号; 或2）作为能够用初始和持续的低电压源（例如电池）驱动辅助高压装置的能量源。
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公开(公告)号：US20010003155A1
公开(公告)日：2001-06-07
申请号：US09764814
申请日：2001-01-16
Inventor： Paul W. Rockley , Kenneth E. Kadziauskas , James W. Staggs
IPC: A61B017/22 , A61B017/32
CPC classification number: A61F9/00745 , A61B17/320068 , A61B2017/0003 , A61B2017/00106 , A61B2017/00194 , A61B2018/00636 , A61B2018/00666 , A61F9/007 , B06B1/0246 , B06B1/0253 , B06B2201/55 , B06B2201/76
Abstract: Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical system for ultrasonically vibrating said needle along with a power source for providing pulsed electrical power to the handpiece electrical system. Irrigation fluid is provided to the handpiece needle and aspirating fluid is removed from the handpiece needle. A determination of a voltage current phase relationship of the provided electrical power is made and in response thereto a control system varies a power level duty cycle provided to the handpiece electrical system from the power source and/or modify the aspiration flow rate. In addition, a separate input enables manual control of pulse amplitude and the control system in response to a selected amplitude determines a duty cycle of the provided pulsed electrical power.
Abstract translation: 晶状体乳化装置包括具有针的晶状体乳化手术器具和电气系统，用于与用于向手持件电气系统提供脉冲电力的电源超声振动所述针头。 向手持针提供灌流液，并从手持针上取出吸液。 进行所提供的电力的电压电流相位关系的确定，并且响应于此，控制系统改变从电源提供给手持式电气系统的功率电平占空比和/或改变吸入流量。 此外，单独的输入允许手动控制脉冲幅度，并且响应于所选择的幅度的控制系统确定所提供的脉冲电功率的占空比。
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公开(公告)号：US5255265A
公开(公告)日：1993-10-19
申请号：US878801
申请日：1992-05-05
Applicant: Kai Y. Eng , Mark J. Karol
Inventor： Kai Y. Eng , Mark J. Karol
CPC classification number: H04L49/508 , H04L49/254 , H04L49/3018 , H04L49/3081 , H04Q11/0478 , B06B2201/55 , H04L2012/5679
Abstract: Significant throughput improvement is achieved for an input queued packet switch using output port schedulers by permitting the output schedulers to recycle or reassign cell transmission times from input ports which are unable to use them. When an output scheduler assigns a cell transmission time to an input port and that input port is unable to use the assigned transmission time due to a scheduling conflict, for example, the input port makes a new request for the same output port during the next subsequent request period and then returns the unusable transmission time assignment back to the output scheduler. The output scheduler stores the returned transmission time in a separate queue for assignment to later requests for the particular output port. Throughput performance is improved from 58% (without time slot recycling) to 92% (with time slot recycling) for random packet cell traffic models.
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公开(公告)号：US5178173A
公开(公告)日：1993-01-12
申请号：US739227
申请日：1991-08-01
Applicant: John J. Erickson , Drew D. Erickson
Inventor： John J. Erickson , Drew D. Erickson
CPC classification number: G02C13/008 , A61L12/026 , B06B1/0276 , B08B3/12 , B06B2201/55 , B06B2201/71 , B06B2201/76 , Y10S134/901
Abstract: An ultrasonic contact lens cleaning device has a housing with a hemispherical cover hingedly affixed to it. A container for a lens cleaning solution is mounted in the housing. An acoustic resonant structure in the housing is coupled to the container. The structure has piezoelectric components. A frequency modulated power circuit in the housing is electrically connected to and drives the acoustic resonant structure and provides a controlled level of ultrasonic cleaning energy.
Abstract translation: 超声波隐形眼镜清洁装置具有壳体，其具有铰接地固定到其上的半球形盖。 用于透镜清洁溶液的容器安装在壳体中。 壳体中的声学谐振结构耦合到容器。 该结构具有压电元件。 外壳中的调频电源电路电连接并驱动声谐振结构，并提供受控的超声波清洗能量。
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Patent Agency Ranking
公开(公告)号：US5059122A
公开(公告)日：1991-10-22
申请号：US358339
申请日：1989-04-25
Applicant: Max Hetzel
Inventor： Max Hetzel
CPC classification number: A61C17/20 , B06B1/0223 , B06B2201/20 , B06B2201/55 , B06B2201/76
Abstract: A dental scaler comprises a hollow sleeve and, arranged inside it, a vibrating piezoelectric transducer bearing a scraper, the extremity of which protrudes from the sleeve, and includes an amplifier connected to the transducerk. The transducer includes a base, of a series of piezoelectric chips on the surfaces of which are arranged electrodes connected in such a manner as to define an input and an output, and a head to which the scraper is coupled. The amplifier has an input, an output and two feeder terminals receiving a low direct voltage by way of a cable connected to an external source of voltage. The output and input of the transducer are connected, respectively, to the input and the output of the amplifier to form an oscillator, the frequency of which is determined by the resonant frequency of the transducer coupled to the scraper.
Abstract translation: PCT No.PCT / CH88 / 00144 Sec。 371日期：1989年4月25日 102（e）日期1989年4月25日PCT提交1988年8月24日PCT公布。 出版物WO89 / 01763 日期：1989年3月9日。牙齿矫直机包括中空套管，并在其内部布置振动的压电换能器，该振动压电换能器带有刮刀，其末端从套筒突出，并包括连接到换能器的放大器。 换能器包括基座，其表面上的一系列压电芯片的布置电极以限定输入和输出的方式连接，以及与该刮刀联接的头部。 放大器具有输入，输出和两个馈线端子，通过连接到外部电压源的电缆接收低直流电压。 传感器的输出和输入分别连接到放大器的输入和输出，以形成振荡器，其频率由耦合到刮刀的传感器的谐振频率决定。
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公开(公告)号：US5001649A
公开(公告)日：1991-03-19
申请号：US245837
申请日：1988-09-16
Applicant: Ying-Ching Lo , Samuel Zambre , Tolentino Escorcio
Inventor： Ying-Ching Lo , Samuel Zambre , Tolentino Escorcio
CPC classification number: B06B1/0207 , A61F9/00745 , B06B1/0253 , A61B18/1206 , A61B2017/00017 , A61B2017/00084 , B06B2201/40 , B06B2201/55
Abstract: There is disclosed herein a driver system for an ultrasonic probe for allowing a user to have proportional control of the power dissipated in the probe in accordance with the position of power dissipation controls operable by the user and for automatically tuning upon user request such that the driving frequency is equal to the mechanical resonant frequency of said probe and such that the reactive component of the load impedance represented by said probe is tuned out. The system uses a tunable inductor in series with the piezoelectric crystal excitation transducer in the probe which has a flux modulation coil. The bias current through this flux modulation coil is controlled by the system. It is controlled such that the inductance of the tunable inductor cancels out the capacitive reactance of the load impedance presented by the probe when the probe is being driven by a driving signal which matches the mechanical resonance frequency of the probe. The resulting overall load impedance is substantially purely resistive. The system measures the phase angle and monitors the load current. This information is used to determine the mechanical resonance frequency by sweeping through a band of driving frequencies and finding the peak load current where the slope of the load current versus frequency function is greater than a predetermined constant. After the automatic tuning to the resonant frequency, the system automatically adjusts the bias current flowing through the flux modulation coil to maintain the substantially purely resistive load impedance for changing power levels. There is also disclosed herein an analog circuit to measure the Phase angle for the load driving signal and to adjust the frequency of the driving signal for best performance. This system includes an integrator to eliminate the effect of offset errors caused by operational amplifiers.
Abstract translation: 这里公开了一种用于超声波探头的驱动器系统，用于允许用户根据用户可操作的功率耗散控制的位置来对探头中消耗的功率进行成比例的控制，并且根据用户请求自动调整，使得驾驶 频率等于所述探针的机械谐振频率，并且使得由所述探针表示的负载阻抗的无功分量被调谐。 该系统使用可调电感器与探头中的压电晶体激发传感器串联，该探头具有通量调制线圈。 通过该通量调制线圈的偏置电流由系统控制。 它被控制使得当探针由与探针的机械共振频率匹配的驱动信号驱动时，可调谐电感器的电感抵消由探头呈现的负载阻抗的容抗。 所得到的总负载阻抗基本上是纯电阻的。 该系统测量相位角并监测负载电流。 该信息用于通过扫描驱动频率带来确定负载电流对频率函数的斜率大于预定常数的峰值负载电流来确定机械谐振频率。 在自动调谐到谐振频率之后，系统自动调整流经通量调制线圈的偏置电流，以保持用于改变功率电平的基本上纯电阻的负载阻抗。 这里还公开了用于测量负载驱动信号的相位角的模拟电路，并且为了获得最佳性能来调整驱动信号的频率。 该系统包括一个积分器，以消除由运算放大器引起的偏移误差的影响。
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公开(公告)号：US4939402A
公开(公告)日：1990-07-03
申请号：US355457
申请日：1989-05-19
Applicant: Hiromitsu Hirayama , Takashi Urano , Minoru Takahashi
Inventor： Hiromitsu Hirayama , Takashi Urano , Minoru Takahashi
CPC classification number: B06B1/0261 , B06B2201/55
Abstract: A single transistor type driving circuit for a piezoelectric vibrator. The driving circuit includes a transformer having a primary winding and a secondary winding, a single switching transistor connected in series with the primary winding, the piezoelectric vibrator being connected with the secondary winding, a transistor driving circuit for applying driving current to the switching transistor so that the switching transistor is alternately turned on and off to thereby drive the vibrator at or in the vicinity of a resonating frequency of the vibrator. A coil is connected in series with the piezoelectric vibrator so that current and voltage of sinusoidal form are applied to the vibrator. A phase comparator compares phase of the sinusoidal current at the piezoelectric vibrator with phase of voltage at the secondary winding of the transformer to produce a phase difference signal, and the frequency of the driving current is controlled in accordance with the phase difference signal.
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179.发明授权
公开(公告)号：US4816743A
公开(公告)日：1989-03-28
申请号：US136096
申请日：1987-12-21
Applicant: Klaus-Christoph Harms , Friedrich Ruckenbauer
Inventor： Klaus-Christoph Harms , Friedrich Ruckenbauer
CPC classification number: H04R29/001 , B06B1/0253 , G01H13/00 , H04R29/004 , B06B2201/55
Abstract: For the identification of the resonance characteristics of a piezo-electric transducer, an input signal having a variably selectable frequency is divided into two sub-signals of the same frequency to be tuned to one another, one of said sub-signals being independent of and the other thereof being dependent upon the electro-mechanical properties of a piezo-electric tranducer under test. A difference output signal is generated from the two sub-signals, this difference output signal being measured relative to a reference output signal derived from the input signal. The tuning of the two sub-signals in the measurement is undertaken constantly to zero and with a rated value actual value differential control of that part of the difference output signal lying in phase or, alternatively, 180.degree. out of phase with the reference output signal. The remaining part of the difference output signal which is phase-shifted 90.degree. relative to the reference output signal, is used as a measure of the resonance characteristic of the transducer.
Abstract translation: 为了识别压电换能器的谐振特性，具有可变可选择频率的输入信号被分成两个相同频率的子信号以彼此调谐，所述子信号之一独立于 另一个取决于被测压电传感器的机电性能。 从两个子信号产生差分输出信号，该差分输出信号相对于从输入信号导出的参考输出信号被测量。 测量中的两个子信号的调谐持续为零，并且差分输出信号的该部分的额定值实际值差分控制处于同相位，或者与基准输出信号相差180° 。 相对于参考输出信号相移90°的差分输出信号的剩余部分被用作传感器的谐振特性的量度。
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公开(公告)号：US4382251A
公开(公告)日：1983-05-03
申请号：US189759
申请日：1980-09-23
Applicant: Hidetaka Fujisawa
Inventor： Hidetaka Fujisawa
CPC classification number: G08B3/10 , B06B1/0215 , B06B2201/55 , B06B2201/70 , Y10S84/24
Abstract: An envelope control device for the piezoelectric buzzer of the invention applies voltages changing with time to both surfaces of a sound generator for push-pull operation for generating an electric tone. The sound generator comprises an oscillating plate with a piezoelectric element attached thereto, and in response to a tone signal outputted from a tone signal generating circuit, it generates an electric tone. By the push-pull operations, an envelope is applied to the electric tone generated.
Abstract translation: 本发明的压电蜂鸣器的包络控制装置将随时间变化的电压施加到用于产生电调的推挽操作的声发生器的两个表面。 声音发生器包括具有附接到其上的压电元件的振荡板，并且响应于从音调信号发生电路输出的音调信号，其产生电调。 通过推挽操作，将一个信封应用于所产生的电调。
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