Measurement of dynamic battery pack properties
    1.
    发明授权
    Measurement of dynamic battery pack properties 有权
    动态电池组特性的测量

    公开(公告)号:US09488562B1

    公开(公告)日:2016-11-08

    申请号:US14642716

    申请日:2015-03-09

    CPC classification number: G01N3/303 G01M7/08 G01N2203/0035

    Abstract: An example method includes positioning a mass at a height opposite a modulator characterized by a particular strain rate and support by a carrier moveably disposed opposite the mass. The method also includes releasing the mass such that the mass impacts the modulator, and an additional component connected to the carrier causes failure of a sample of material. The method further includes determining a displacement of the carrier corresponding to failure of the sample, determining a force applied to the modulator by the mass and resulting in failure of the sample, and determining at least one of a dynamic strength of the sample and a dynamic modulus of the sample. In such a method, the dynamic strength is based on the force applied to the modulator and the strain rate. Additionally, the dynamic modulus is based on the displacement of the carrier and the strain rate.

    Abstract translation: 一个示例性方法包括将质量定位在与调制器相反的高度处,其特征在于特定的应变速率,并且通过可移动地布置成与质量相对设置的载体来支撑 该方法还包括释放质量使得质量影响调制器,并且连接到载体的附加部件引起材料样品的失效。 该方法还包括确定对应于样品故障的载体的位移,确定通过质量施加到调制器的力并导致样品失效,以及确定样品的动态强度和动态 样品的模量。 在这种方法中,动态强度基于施加到调制器的力和应变率。 另外,动态模量基于载体的位移和应变速率。

    Smart bass reflex loudspeaker
    9.
    发明授权

    公开(公告)号:US09615163B1

    公开(公告)日:2017-04-04

    申请号:US14137819

    申请日:2013-12-20

    CPC classification number: H04R1/2826 H04R1/2819

    Abstract: A loudspeaker port may include tunable physical components to tune the port to different frequencies to improve speaker efficiency at those frequencies. The ports may be activated by at least partly opening associated shutters, or disabled by closing the associated shutters. Activated ports may enhance speaker efficiency in a frequency range. However, activated ports may also introduce sound artifacts, thereby reducing sound quality. Therefore, the ports may be disabled when appropriate to reduce their negative impact to sound quality. A Digital Signal Processor (DSP) may determine the frequency components of a played sound to determine when to open the ports and how to tune the ports. Accordingly, a loudspeaker may benefit from the improved efficiency facilitated by the ports while also avoiding typical drawbacks created by the ports.

    Light guides having reflective coatings
    10.
    发明授权
    Light guides having reflective coatings 有权
    具有反光涂层的导光板

    公开(公告)号:US09004736B1

    公开(公告)日:2015-04-14

    申请号:US13892426

    申请日:2013-05-13

    Abstract: Assemblies and techniques are provided for light guides integrated into display devices having front light sources. In one aspect, a light guide can include one or more reflective coatings that are applied or otherwise integrated onto one or more internal surfaces of the light guide. Application of at least one reflective coating can modify the luminance and/or chromaticity of the light guide. The one or more coatings can comprise one or more applied layers of paint, such as a layer of a glossy colored paint and/or a layer of a chrome paints.

    Abstract translation: 提供了集成到具有前光源的显示装置中的光导件的组件和技术。 在一个方面,光导可以包括被施加或以其他方式集成在光导的一个或多个内表面上的一个或多个反射涂层。 至少一个反射涂层的应用可以改变光导的亮度和/或色度。 一个或多个涂层可以包括一个或多个施加的涂料层,例如光泽有色涂料的层和/或铬涂料层。

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