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    • 4. 发明授权
    • Multi-path digital-to-analog converter
    • 多路数模转换器
    • US09590648B2
    • 2017-03-07
    • US15227913
    • 2016-08-03
    • John Howard La Grou
    • John Howard La Grou
    • H03M1/06H03M1/08H03M1/66
    • H03M1/08H03M1/1038H03M1/66H03M1/68
    • A digital-to-analog converter which improves dynamic range by apportioning a least significant bits portion of an incoming digital signal to a low-path circuit and a most significant bits portion of the incoming digital signal to a high-path circuit. The low-path circuit has a low-path digital-to-analog converter, which feeds a low-path resistive element, which feeds an output node. The high-path circuit has a high-path digital-to-analog converter, which feeds a high-path resistive element, which feeds an output node. The output node is a simple electrical connection of the outputs of the low-path and high-path resistive elements. The system can further improve dynamic range by providing a high-path amplifier with control element(s) which reduce or eliminate high-path noise from the output node. Further dynamic range improvement is realized when the high-path control system takes advantage of the effects of psychoacoustic masking. Performance linearity is improved by a feedback system which monitors the output signal.
    • 一种数模转换器,其通过将输入数字信号的最低有效位部分分配给输入数字信号的低通路电路和最高有效位部分到高路径电路来改善动态范围。 低通路电路具有一个低通道数模转换器,它提供输入节点的低通路电阻元件。 高路径电路具有高路数字模拟转换器,其馈送高通路电阻元件,其馈送输出节点。 输出节点是低通路和高通路电阻元件的输出的简单电连接。 该系统可以通过提供具有减少或消除来自输出节点的高通道噪声的控制元件的高路径放大器来进一步改善动态范围。 当高路径控制系统利用心理声学掩蔽的效果时,实现了进一步的动态范围改进。 通过监控输出信号的反馈系统改善了性能线性度。
    • 6. 发明授权
    • Quick-loading bow and arrow toy
    • 快速装载弓箭玩具
    • US09476666B1
    • 2016-10-25
    • US14621336
    • 2015-02-12
    • Cole Ernest Larner
    • Cole Ernest Larner
    • F41B7/00F41B5/00F41B5/14F42B6/02F41B7/04
    • F41B5/1403F41B5/00F41B5/0094F41B7/00F41B7/04F42B6/02
    • A bow and arrow toy having a light-weight, foam tipped arrow and a bow with rear and fore tension bands. To load and arm the toy, the rear of the arrow is abutted against the rear tension band and the shaft of the arrow is pressed against the fore tension band and drawn back. As the arrow is drawn back, the shaft of the arrow slides against the fore tension band until the fore tension band falls into an engagement slot along the shaft, causing the fore tension band to also become engaged and tensioned as the arrow is drawn back further. At the fore outside edge of the engagement slot is a catch lip which protrudes outwards from the shaft and functions to guide the fore tension band into the engagement slot if the pressure of the shaft against the fore tension band is not sufficient to cause the fore tension band to slide directly into the engagement slot. The fore tension band is comprised of three interlinked loops, with the central loop being sleeved so as to narrow its effective diameter. The front profile of the fore tension band, from top to bottom, slants rearward, is vertical and slants forward, thereby providing physical guidance for proper horizontal orientation of the arrow. The sleeved central loop differs in color from the top and bottom loops of the fore tension band to facilitate proper horizontal orientation of the arrow.
    • 一个弓箭玩具,具有轻便,泡沫的箭头和弓与后和前张力带。 为了装载和摆放玩具,箭头的后部抵靠着后张力带,并且箭头的轴被压靠在前张力带上并被拉回。 当箭头被拉回时,箭头的轴滑动抵靠前张力带,直到前张力带沿着轴落入接合槽中,使得前张力带也随着箭头进一步拉回而变得接合和张紧 。 在接合槽的前外侧边缘处是从轴向外突出的止动唇部,其功能是将前张力带引导到接合槽中,如果轴抵靠前张力带的压力不足以引起前张力 带直接滑入接合槽。 前张力带由三个相互连接的环构成,其中心环被套管以便缩小其有效直径。 前张力带的前部轮廓从上到下倾斜向后倾斜,向前倾斜,从而为箭头的正确水平方向提供物理指导。 袖子中央环与前张力带的顶部和底部环的颜色不同,以促进箭头的正确水平取向。
    • 8. 发明授权
    • Swinging bob toy with reversibly separable bobs
    • 摆动鲍勃玩具与可逆分离的bobs
    • US09004978B2
    • 2015-04-14
    • US13714419
    • 2012-12-14
    • Laurence J. Shaw
    • Laurence J. Shaw
    • A63H33/00A63B67/08
    • A63H33/00A63B67/08
    • A swinging bob toy having three bobs constrained on a string, the middle bob being slideably constrained between the two end bobs, and at least one of the bobs being reversibly separable into two partial bobs. A wide variety of new tricks and maneuvers are made possible by the separability of the bobs. The two partial bobs have roughly the same weight thereby providing balanced orbits. Each of the two partial bobs slides less easily along the string than a non-separated bob. The two partial bobs have roughly the same diameter along at least one axis thereby allowing visual illusions to be performed.
    • 具有限制在弦上的三个波瓣的摆动鲍勃玩具,中间鲍勃可滑动地约束在两个末端波瓣之间,并且至少一个波瓣可逆地分离成两个部分波瓣。 通过滚珠的可分离性,可以实现各种各样的新技巧和机动。 两个部分滚子具有大致相同的重量,从而提供平衡的轨道。 两个部分滚子中的每一个沿着弦线比不分离的滚珠更容易滑动。 沿着至少一个轴线,两个部分波瓣具有大致相同的直径,从而允许执行视觉幻觉。