Directional sound device
    4.
    发明授权

    公开(公告)号:US11551661B2

    公开(公告)日:2023-01-10

    申请号:US16978879

    申请日:2019-02-19

    摘要: A directional sound apparatus includes a planar shape plate and a sound wave generator. The planar shape plate has a plurality of grooves formed on a surface of the planar shape plate. The sound wave generator is configured to radiate a sound wave to outside from the surface of the planar shape plate. A width of each of the grooves and a distance between the grooves adjacent to each other are smaller than a wavelength of the sound wave. The planar shape plate has a plurality of cell areas in which at least one groove is included. A structure of the groove included in a first cell area is different from that of the groove included in a second cell area adjacent to the first cell area, so that surface admittance in the first cell area is different from that in the second cell area.

    ELASTIC WAVE DEVICE MANUFACTURING METHOD, ELASTIC WAVE DEVICE, RADIO-FREQUENCY FRONT-END CIRCUIT, AND COMMUNICATION DEVICE

    公开(公告)号:US20190312559A1

    公开(公告)日:2019-10-10

    申请号:US16446798

    申请日:2019-06-20

    摘要: An elastic wave device manufacturing method includes a preparing a piezoelectric wafer on which IDT electrodes are provided in elastic wave device forming portions, providing on a first main surface of the piezoelectric wafer support layers in the elastic wave device forming portions, bonding a cover member to cover the support layers to obtain a multilayer body, cutting the multilayer body in a first direction multiple times, cutting the multilayer body in a second direction orthogonal to the first direction to obtain elastic wave devices, in which a resin layer extends across a boundary between the elastic wave device forming portions adjacent to each other on the first main surface of the piezoelectric wafer, and the second cutting step is performed in a state in which the resin layer is present.

    AUDIO OUTPUTTING DEVICE, AUDIO OUTPUTTING METHOD, NOISE REDUCING DEVICE, NOISE REDUCING METHOD, PROGRAM FOR NOISE REDUCTION PROCESSING, NOISE REDUCING AUDIO OUTPUTTING DEVICE, AND NOISE REDUCING AUDIO OUTPUTTING METHOD
    6.
    发明申请
    AUDIO OUTPUTTING DEVICE, AUDIO OUTPUTTING METHOD, NOISE REDUCING DEVICE, NOISE REDUCING METHOD, PROGRAM FOR NOISE REDUCTION PROCESSING, NOISE REDUCING AUDIO OUTPUTTING DEVICE, AND NOISE REDUCING AUDIO OUTPUTTING METHOD 有权
    音频输出装置,音频输出方法,噪声减少装置,噪声减少方法,噪声减少处理程序,噪声减少音频输出装置以及降噪音频输出方法

    公开(公告)号:US20080159555A1

    公开(公告)日:2008-07-03

    申请号:US11936876

    申请日:2007-11-08

    IPC分类号: G10K11/36

    摘要: Disclosed herein is an audio outputting device for switching a plurality of processes to perform a process on an audio signal, and acoustically reproducing and outputting the audio signal, the audio outputting device including, a control section for, when changing a process performed on an audio signal from one process to another process, stopping the one process on the audio signal, outputting sound based on the audio signal unprocessed by either of the one process and the other process, and performing the other process on the audio signal after passage of a predetermined period of time.

    摘要翻译: 这里公开了一种用于切换多个处理以对音频信号进行处理的音频输出装置,并且声音再现和输出音频信号,该音频输出装置包括:控制部分,用于当改变对音频执行的处理时 从一个处理到另一个处理的信号,停止音频信号上的一个处理,基于未由一个处理和另一个处理中的任何一个处理的音频信号输出声音,并且在经过预定的过程之后对音频信号执行另一个处理 一段的时间。

    Plate-mode ultrasonic structure including a gel
    8.
    发明授权
    Plate-mode ultrasonic structure including a gel 失效
    板状超声波结构包括凝胶

    公开(公告)号:US5212988A

    公开(公告)日:1993-05-25

    申请号:US775631

    申请日:1991-10-10

    摘要: An ultrasonic structure which has a thin planar sheet of material forming a Lamb wave propagation medium The propagation medium is coated with a gel. The structure may also include a Lamb wave generator for generating Lamb waves in the propagation medium and an output device for producing an electrical signal representative of the propagation characteristics of the Lamb waves propagating along the propagation medium. A measuring device can be included to measure selected characteristics of the output electrical signal. The propagation medium has some physical characteristics that are determined by the value of a measurand acting on the medium and the determined physical characteristics determine the propagation characteristics of the Lamb waves which are propagated along the medium. When the sensor is acted on by a measurand to determine the physical characteristics of the propagation medium, the characteristics of the electrical signal are also determined. The measuring device measures the electrical signal and provides an indication of the measurand value.

    摘要翻译: 具有形成兰姆波传播介质的薄平板材料的超声波结构传播介质用凝胶涂覆。 该结构还可以包括用于在传播介质中产生兰姆波的兰姆波发生器和用于产生表示沿着传播介质传播的兰姆波传播特性的电信号的输出装置。 可以包括测量装置来测量输出电信号的选定特性。 传播介质具有由作用在介质上的被测量的值确定的一些物理特性,并且所确定的物理特性确定沿着介质传播的兰姆波的传播特性。 当传感器被被测量作用以确定传播介质的物理特性时,也确定电信号的特性。 测量设备测量电信号并提供被测量值的指示。

    Multiplexed surface acoustical wave apparatus
    9.
    发明授权
    Multiplexed surface acoustical wave apparatus 失效
    多路复用表面声波装置

    公开(公告)号:US4994798A

    公开(公告)日:1991-02-19

    申请号:US339133

    申请日:1989-08-28

    申请人: James R. McColl

    发明人: James R. McColl

    摘要: An apparatus is featured for controlling remote devices. The status or one or more switches associated with remote devices may be transmitted along a single transmission line. One end of the transmission line contains a surface acoustical wave (SAW) delay line. The SAW delay line responds to an interrogation pulse of radio frequency electromagnetic energy with a series of delayed pulses, each of which transmits the status of a switch by means of the presence or absence of the pulse. The SAW delay line and switches are completely passive, requiring no power source. The transmission line may optionally be interrupted and coupled by means of a pair of inductive coils. This offers the potential for rotation, as within a steering column of an automobile, without wear or damage to the transmission line. The other end of the transmission line contains electronic circuitry to provide the interrogation pulse, to decode the return delayed pulses, and to drive other circuitry as required by the switch positions.

    摘要翻译: 一种用于控制远程设备的设备。 与远程设备相关联的状态或一个或多个交换机可以沿着单个传输线传输。 传输线的一端包含表面声波(SAW)延迟线。 SAW延迟线用一系列延迟的脉冲响应射频电磁能量的询问脉冲,每个延迟脉冲通过存在或不存在脉冲来传输开关的状态。 SAW延迟线和开关是完全被动的,不需要电源。 传输线可以可选地被中断并通过一对感应线圈耦合。 这提供了旋转的潜力,如在汽车的转向柱内,没有磨损或损坏传输线。 传输线的另一端包含提供询问脉冲的电子电路,以解码返回延迟的脉冲,并根据开关位置的要求驱动其它电路。

    Surface wave component
    10.
    发明授权
    Surface wave component 失效
    表面波分量

    公开(公告)号:US4344049A

    公开(公告)日:1982-08-10

    申请号:US181825

    申请日:1980-08-27

    申请人: Friedrich Grobe

    发明人: Friedrich Grobe

    CPC分类号: H03H9/0542 G10K11/36

    摘要: A surface wave component has a pair of interdigital transducer comb structures carried spaced apart on a surface of a substrate which is carried on a base plate. In one embodiment, signal leads extend beneath the substrate to areas adjacent the rear portions of the comb structures and are capacitively coupled thereto via the substrate which is a dielectric. In another embodiment, inductive coupling loops interconnect the rear portions of the comb structures of a respective transducer and another inductive loop is carried on the opposite side of the substrate for signal coupling. In both embodiments both symmetrical and asymmetrical signal coupling is provided by utilizing a grounding plate or layer as a signal lead.

    摘要翻译: 表面波分量具有一对叉指式换能器梳状结构,其在基板的表面上间隔开地承载在基板上。 在一个实施例中,信号引线在衬底下方延伸到与梳状结构的后部相邻的区域,并通过作为电介质的衬底电容耦合到其上。 在另一个实施例中,电感耦合回路将相应换能器的梳状结构的后部部分相互连接,另一个感应环路承载在用于信号耦合的衬底的相对侧上。 在两个实施例中,通过利用接地板或层作为信号引线来提供对称和非对称信号耦合。