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61. 发明授权

US4396909A Frequency generating circuit 失效
标题翻译：频率发生电路
公开(公告)号：US4396909A
公开(公告)日：1983-08-02
申请号：US268062
申请日：1981-05-28
申请人： Kazuyasu Suzuki
发明人： Kazuyasu Suzuki
IPC分类号： H04R17/10 , G10H5/06 , G10K9/122 , G10K15/04 , H03K5/13 , H03K5/156 , H03K7/08 , H03K17/28 , H03K17/64 , H03K23/66 , H03K5/04
CPC分类号： H03K5/131 , G10H5/06 , H03K17/28 , H03K17/64 , H03K23/66 , H03K5/156 , H03K7/08
摘要： A frequency generating circuit comprises a piezoelectric buzzer (18) which is driven by a driving signal having a desired frequency and a desired pulse width; a frequency dividing circuit (1) made up of a multi-stage flip-flop array for frequency dividing a reference frequency signal; logic setting means (3.sub.1 to 3.sub.6, 4) which is responsive to a plurality of externally generated setting signals (C.sub.1 to C.sub.6) to effect a logic setting for obtaining the desired frequency; control means (5, 6, 7, 10, 11, 12) for outputting a control signal to reset terminals of the flip-flops on the basis of an output signal of the logic setting means for resetting the frequency dividing circuit to obtain the desired frequency; pulse width setting means (15) coupled to output terminals of at least two predetermined flip-flop stages of the frequency dividing circuit to set the pulse width of a driving signal to the desired pulse width; and driving signal generating means (8, 13, 14, 16) for delivering a driving signal to the piezoelectric buzzer (18) as a function of the control signal of the control means and the output signal of the pulse width setting means, the driving signal having the desired frequency and the desired pulse width.
摘要翻译：频率发生电路包括由具有期望频率和期望脉冲宽度的驱动信号驱动的压电蜂鸣器（18）; 由用于对参考频率信号进行分频的多级触发器阵列构成的分频电路（1）; 响应于多个外部产生的设置信号（C1至C6）的逻辑设置装置（31至36,4）以实现用于获得期望频率的逻辑设置; 控制装置（5,6,7,10,11,12），用于根据用于复位分频电路的逻辑设置装置的输出信号输出控制信号以复位触发器的端子，以获得期望的频率; 脉冲宽度设定装置（15），其耦合到所述分频电路的至少两个预定触发器级的输出端，以将驱动信号的脉冲宽度设置为期望的脉冲宽度; 以及用于根据控制装置的控制信号和脉冲宽度设定装置的输出信号将驱动信号传送到压电蜂鸣器（18）的驱动信号发生装置（8,13,14,16），驱动信号具有期望的频率和期望的脉冲宽度。

62. 发明授权

US4352169A Electronic timepiece 失效
标题翻译：电子钟表
公开(公告)号：US4352169A
公开(公告)日：1982-09-28
申请号：US933094
申请日：1978-08-11
申请人： Kazuhiro Asano
发明人： Kazuhiro Asano
IPC分类号： G10K9/122 , G04C21/02 , G04G13/02 , G04G19/04 , G04B23/02 , G04C3/00 , G08B3/00
CPC分类号： G04G13/021 , G04G13/02 , G04G19/04
摘要： An electronic timepiece having a liquid crystal display device and a buzzer comprised of a piezoelectric element. A voltage booster circuit comprised of a capacitor and a semiconductor switching element boosts the voltage of the voltage supply, and the boosted voltage is applied to drive the liquid crystal display device. A buzzer driving circuit inverts the booster voltage and simultaneously applies the booster voltage and the inverted booster voltage to drive the piezoelectric buzzer element. The operating frequency of the voltage booster is increased when the buzzer is operated and when the booster voltage and inverted booster voltage are applied to energize the piezoelectric buzzer element.
摘要翻译：一种具有液晶显示装置和由压电元件构成的蜂鸣器的电子钟表。由电容器和半导体开关元件组成的升压电路提升电压的电压，并施加升压电压来驱动液晶显示装置。蜂鸣器驱动电路使升压电压反转，同时施加升压电压和反相升压电压驱动压电蜂鸣器元件。当蜂鸣器操作时，当施加升压电压和反相升压电压以激励压电蜂鸣器元件时，升压器的工作频率增加。

63. 发明授权

US4345118A Quartz tuning fork electro-acoustic transducer 失效
标题翻译：石英音叉电声换能器
公开(公告)号：US4345118A
公开(公告)日：1982-08-17
申请号：US161152
申请日：1980-06-19
申请人： Seinosuke Takemura
发明人： Seinosuke Takemura
IPC分类号： G10K9/122 , H04R1/22 , H04R17/00 , H04R17/10
CPC分类号： H04R17/10 , G10K9/122 , H04R1/22 , H04R17/00
摘要： An acousto-electronic transducer includes an oscillator of quartz located in a sealed casing whose ceiling is constituted by a vibrant film, wherein the oscillator is connected to a pair of electrodes, and wherein the oscillator is connected to the vibrant film.
摘要翻译：声电子换能器包括位于密封壳体中的石英振荡器，其天花板由充满活力的膜构成，其中振荡器连接到一对电极，并且其中振荡器连接到充满活力的膜。

64. 发明授权

US4122365A Piezoelectric buzzer device 失效
标题翻译：压电蜂鸣器
公开(公告)号：US4122365A
公开(公告)日：1978-10-24
申请号：US652285
申请日：1976-01-26
申请人： Gerald D. Stephens
发明人： Gerald D. Stephens
IPC分类号： H04R17/10 , G04C21/02 , G06F15/02 , G10K9/122 , H01L41/10
CPC分类号： G10K9/122
摘要： A piezoelectric buzzer has a piezoelectric crystal mounted on a circular mounting plate. Supporting struts are integrally formed in the mounting plate by punching strut shaped portions in the plate and bending these portions such that they are substantially perpendicular to the plate. The struts are positioned on the nodal circle of the transducer so that the vibration of the transducer is not substantially impaired by the mounting arrangement. An oscillator circuit is connected to provide a potential between the mounting plate and a first electrode positioned on the surface of the crystal opposite the mounting plate. A second electrode, positioned on the surface of the piezoelectric crystal adjacent the first electrode, provides a feedback signal to the oscillator circuit. The unique buzzer design allows the buzzer components to be assembled by a one-step soldering process.
摘要翻译：压电蜂鸣器具有安装在圆形安装板上的压电晶体。支撑支柱通过冲压板中的支柱形部分并弯曲这些部分使得它们基本上垂直于板而一体地形成在安装板中。支柱位于换能器的节圆上，使传感器的振动基本上不受安装布置的损害。连接振荡器电路以在安装板和位于与安装板相对的晶体表面上的第一电极之间提供电位。位于与第一电极相邻的压电晶体的表面上的第二电极向振荡器电路提供反馈信号。独特的蜂鸣器设计允许蜂鸣器组件通过一步焊接过程进行组装。

65. 发明授权

US4104628A High output audible alarm device utilizing a piezoelectric transducer and voltage doubling means 失效
标题翻译：利用压电传感器和电压倍增装置的高输出声音报警装置
公开(公告)号：US4104628A
公开(公告)日：1978-08-01
申请号：US732884
申请日：1976-10-15
申请人： Louis P. Sweany , Michael T. Burk
发明人： Louis P. Sweany , Michael T. Burk
IPC分类号： G08B17/00 , B06B1/02 , G08B3/10 , G08B21/00 , G08B23/00 , G10K9/122 , G08B3/00
CPC分类号： B06B1/0261 , G08B3/10 , B06B2201/55
摘要： A piezoelectric transducer and a voltage doubling means are utilized in conjunction with a power supply means, a pulsator means, an amplifier means, and an acoustical loading means to produce an efficient high output audible alarm device. The voltage doubling means and the acoustical loading means enhance the audible output of the alarm device while increasing the overall electroacoustical efficiency of the alarm.
摘要翻译：压电换能器和电压倍增装置与电源装置，波轮装置，放大器装置和声学加载装置结合使用，以产生有效的高输出声音报警装置。电压倍增装置和声学加载装置增强报警装置的可听输出，同时增加报警器的整体电声效率。

66. 发明授权

US4023162A Electronic buzzer 失效
标题翻译：电子蜂鸣器
公开(公告)号：US4023162A
公开(公告)日：1977-05-10
申请号：US612538
申请日：1975-09-11
申请人： Fumikazu Murakami
发明人： Fumikazu Murakami
IPC分类号： B06B1/02 , B06B1/06 , G10K9/122 , H04R17/10 , G08B3/10
CPC分类号： B06B1/0677 , B06B1/0223 , G10K9/122 , H04R17/10
摘要： An electronic buzzer comprises an acoustic vibrator comprised of a circular metal plate having its entire periphery rigidly secured to a support, and a piezoelectric element adhered to one face of the metal plate. A driving circuit applies electric driving signals to the vibrator to vibrationally drive it at a 1/N multiple of its natural frequency, where N is an integer, so that the vibrator emits an audible buzzing sound. The metal plate is preferably mounted to undergo vibration in a natural vibration mode having only one nodal circle. The drive circuit includes an inductor connected in a closed loop with the vibrator, which functions as a capacitor, and the circuit applies signals at a selectively variable frequency to the closed loop to accordingly vary the inductance of the inductor to thereby vary the period of oscillation of the acoustic vibrator and the resultant frequency of the buzzing sound.
摘要翻译：电子蜂鸣器包括由圆形金属板组成的声音振动器，该圆形金属板的整个外周刚性地固定在支撑体上，以及粘附在金属板的一个面上的压电元件。驱动电路将电驱动信号施加到振动器，以其固有频率的1 / N倍振动地驱动振动器，其中N是整数，使得振动器发出可听到的嗡嗡声。金属板优选安装成以仅具有一个节圆的固有振动模式进行振动。该驱动电路包括一个电感器，该闭合回路与振动器连接起来，起着电容器的作用，该电路以一个选择性可变的频率向闭环施加信号，从而改变电感器的电感，从而改变振荡周期的声音振动器和所产生的嗡嗡声的频率。

67. 发明授权

US11531512B2 Display apparatus 有权
公开(公告)号：US11531512B2
公开(公告)日：2022-12-20
申请号：US16838655
申请日：2020-04-02
申请人： LG Display Co., Ltd.
发明人： Sungtae Lee , KwanHo Park , YeongRak Choi , Kwangho Kim
IPC分类号： G06F3/16 , G06F1/16 , G10K9/122 , G10K9/13
摘要： A display apparatus includes a display panel configured to display an image and including a first to a fifth regions, at least one first and fourth sound generating devices in a left region of a rear surface of the display panel and in the first and fourth regions, at least one second and fifth sound generating device in a right region of the rear surface and in the second and fifth regions, and at least one third sound generating device in a center region of the rear surface and in the third region. The at least one first to third sound generating devices is configured to vibrate the display panel to generate sound, and the at least one fourth and fifth sound generating devices is configured to vibrate the display panel to generate sound in a direction upwards from the display panel.

68. 发明授权

US11361576B2 Sensor circuit for generating and detecting ultrasonic sensing signal, an ultrasonic sensing display apparatus 有权
公开(公告)号：US11361576B2
公开(公告)日：2022-06-14
申请号：US16762271
申请日：2019-05-21
申请人： BOE Technology Group Co., Ltd.
发明人： Xiufeng Li , Yingming Liu , Xiaoliang Ding , Lijun Zhao , Haisheng Wang , Yanling Han
IPC分类号： G01S7/52 , G06V40/13 , G01S15/89 , G10K9/122
摘要： A circuit for generating and detecting ultrasonic sensing signals is provided. A piezoelectric device having a transmitting electrode and a receiving electrode is coupled to a biasing-and-sampling sub-circuit configured to set different bias voltages to the receiving electrode. The piezoelectric device is configured to transmit an ultrasonic signal upon applying an exciting pulse signal to the transmitting electrode and alternatively to generate a voltage signal at the receiving electrode upon receiving an echo signal based on the ultrasonic signal. A signal-collecting sub-circuit is coupled to the receiving electrode to determine a first sampling voltage based on the voltage signal at the receiving electrode in a first sampling period and a second sampling voltage based on the voltage signal at the receiving electrode in a second sampling period. An output sub-circuit is coupled to the signal-collecting sub-circuit for outputting the first sampling voltage and the second sampling voltage at a same time.

69. 发明申请

US20220159386A1 PIEZOELECTRIC SPEAKER AND MANUFACTURING METHOD THEREFOR 有权
公开(公告)号：US20220159386A1
公开(公告)日：2022-05-19
申请号：US17439398
申请日：2020-03-12
申请人： ECO DM LAB CO., LTD.
发明人： Man Soon YOON , Young Min PARK
IPC分类号： H04R17/00 , H01L41/273 , H01L41/277 , G10K9/122
摘要： Disclosed are a piezoelectric speaker employing a piezoelectric device having a through-hole and a method for manufacturing the same. The piezoelectric speaker includes a piezoelectric device including a stacked body having through-holes and electrodes formed at the stacked body, an adhesive layer disposed on the lower surface of the piezoelectric device, and a diaphragm attached to the piezoelectric device by the adhesive layer. The through-holes are arranged to decrease in size as they move away from the center of the piezoelectric element. The through-holes have a symmetrical arrangement with respect to the center, and the inner surface of each through-hole has a curved edge. The structure and arrangement of these through-holes do not cause cracks during the sintering process.

70. 发明授权

US11294423B2 Display device 有权
公开(公告)号：US11294423B2
公开(公告)日：2022-04-05
申请号：US16811442
申请日：2020-03-06
申请人： Samsung Display Co., LTD.
发明人： Jeong Heon Lee , Young Sik Kim , Jong Tae Kim , Sang Wook Yoo , Si Young Choi
IPC分类号： G06F1/16 , G06F3/16 , G10K9/122
摘要： A display device may include: a display panel; a vibration generating device disposed on one surface of the display panel, the vibration generating device configured to generate vibration to be transmitted to the display panel; a panel bottom member disposed between the display panel and the vibration generating device; and a vibration transmitting member disposed in the panel bottom member to at least partially overlap with the vibration generating device in plan view.

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