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    • 3. 发明授权
    • Dual pen interactive whiteboard system
    • 双笔交互式白板系统
    • US08411053B2
    • 2013-04-02
    • US12640017
    • 2009-12-17
    • Dana Gene DoubravaMark Edward PlastererDavid Eric TimmonsRichard Wiley Prugh
    • Dana Gene DoubravaMark Edward PlastererDavid Eric TimmonsRichard Wiley Prugh
    • G06F3/033
    • G06F3/046
    • An electromagnetic interactive whiteboard system includes a first electronic pen (16) constructed and arranged to operate at a first frequency (F1). At least a second electronic pen (18) is constructed and arranged to operate at a second frequency (F2) that is different from the first frequency. An electromagnetic interactive whiteboard (12) has a single conductive grid (14) constructed and arranged to receive electromagnetic signals from the pens due to proximity of the pens to the grid. A circuit (30) separates the first and second frequencies into their respective X and Y component frequencies when the pens are operating simultaneously. A controller (20) receives a signal including the separated X and Y component frequencies of each of the first and second pens to detect each pen and to determine an X and Y coordinate position of each pen relative to the grid based on the X and Y component frequencies.
    • 电磁交互式白板系统包括构造和布置成以第一频率(F1)操作的第一电子笔(16)。 至少第二电子笔(18)被构造和布置成在与第一频率不同的第二频率(F2)下操作。 电磁交互式白板(12)具有单个导电栅格(14),其被构造和布置成由于笔接近网格而接收来自笔的电磁信号。 当笔同时操作时,电路(30)将第一和第二频率分离成它们各自的X和Y分量频率。 控制器(20)接收包括第一和第二笔中的每一个的分离的X和Y分量频率的信号,以检测每个笔,并且基于X和Y来确定每个笔相对于网格的X和Y坐标位置 分量频率。
    • 7. 发明授权
    • Core reflex nozzle for turbofan engine
    • 涡扇发动机的核心反射喷嘴
    • US08002520B2
    • 2011-08-23
    • US12159517
    • 2007-01-17
    • Stacie M. DawsonRichard Wiley
    • Stacie M. DawsonRichard Wiley
    • F01D25/00F04D31/00F04D29/00
    • F02K1/386F02K3/06
    • A turbofan engine is provided that includes a core nacelle at least partially surrounded by a fan nacelle. The core nacelle includes a reflex nozzle providing a core exit. The core nacelle includes a contour on its exterior surface upstream from the reflex nozzle. The contour is generally conical and tapers toward the core exit at a first slope. The reflex nozzle tapers toward the exit at a second slope that is less steep than the first slope. The reflex nozzle includes a generally linear portion. In one example, the reflex nozzle is provided by a generally cylindrical extension that sufficiently turns the bypass flow away from the core exit so that the core flow does not become choked.
    • 提供了一种涡轮风扇发动机,其包括至少部分地被风扇机舱包围的核心机舱。 核心机舱包括提供核心出口的反射喷嘴。 核心机舱在其反射喷嘴上游的外表面上包括轮廓。 轮廓通常是圆锥形的,并且在第一斜坡处朝向芯出口逐渐变细。 反射喷嘴在比第一斜坡不太陡的第二斜坡处朝向出口逐渐变细。 反射喷嘴包括大致线性的部分。 在一个示例中,反射喷嘴由大致圆柱形的延伸部提供,其充分地将旁路流动离开核心出口,使得芯流不被阻塞。
    • 8. 发明申请
    • CORE REFLEX NOZZLE FOR TURBOFAN ENGINE
    • 用于涡轮发动机的核心反射喷嘴
    • US20100221102A1
    • 2010-09-02
    • US12159517
    • 2007-01-17
    • Stacie M. DawsonRichard Wiley
    • Stacie M. DawsonRichard Wiley
    • F01B25/00
    • F02K1/386F02K3/06
    • A turbofan engine is provided that includes a core nacelle at least partially surrounded by a fan nacelle. The core nacelle includes a reflex nozzle providing a core exit. The core nacelle includes a contour on its exterior surface upstream from the reflex nozzle. The contour is generally conical and tapers toward the core exit at a first slope. The reflex nozzle tapers toward the exit at a second slope that is less steep than the first slope. The reflex nozzle includes a generally linear portion. In one example, the reflex nozzle is provided by a generally cylindrical extension that sufficiently turns the bypass flow away from the core exit so that the core flow does not become choked.
    • 提供了一种涡轮风扇发动机,其包括至少部分地被风扇机舱包围的核心机舱。 核心机舱包括提供核心出口的反射喷嘴。 核心机舱在其反射喷嘴上游的外表面上包括轮廓。 轮廓通常是圆锥形的,并且在第一斜坡处朝向芯出口逐渐变细。 反射喷嘴在比第一斜坡不太陡的第二斜坡处朝向出口逐渐变细。 反射喷嘴包括大致线性的部分。 在一个示例中,反射喷嘴由大致圆柱形的延伸部提供,其充分地将旁路流动离开核心出口,使得芯流不被阻塞。
    • 10. 发明申请
    • Dual Pen Interactive Whiteboard System
    • 双笔交互式白板系统
    • US20100156831A1
    • 2010-06-24
    • US12640017
    • 2009-12-17
    • Dana Gene DoubravaMark Edward PlastererDavid Eric TimmonsRichard Wiley Prugh
    • Dana Gene DoubravaMark Edward PlastererDavid Eric TimmonsRichard Wiley Prugh
    • G06F3/033G06F3/041
    • G06F3/046
    • An electromagnetic interactive whiteboard system includes a first electronic pen (16) constructed and arranged to operate at a first frequency (F1). At least a second electronic pen (18) is constructed and arranged to operate at a second frequency (F2) that is different from the first frequency. An electromagnetic interactive whiteboard (12) has a single conductive grid (14) constructed and arranged to receive electromagnetic signals from the pens due to proximity of the pens to the grid. A circuit (30) separates the first and second frequencies into their respective X and Y component frequencies when the pens are operating simultaneously. A controller (20) receives a signal including the separated X and Y component frequencies of each of the first and second pens to detect each pen and to determine an X and Y coordinate position of each pen relative to the grid based on the X and Y component frequencies.
    • 电磁交互式白板系统包括构造和布置成以第一频率(F1)操作的第一电子笔(16)。 至少第二电子笔(18)被构造和布置成在与第一频率不同的第二频率(F2)下操作。 电磁交互式白板(12)具有单个导电栅格(14),其被构造和布置成由于笔接近网格而接收来自笔的电磁信号。 当笔同时操作时,电路(30)将第一和第二频率分离成它们各自的X和Y分量频率。 控制器(20)接收包括第一和第二笔中的每一个的分离的X和Y分量频率的信号,以检测每个笔,并且基于X和Y来确定每个笔相对于网格的X和Y坐标位置 分量频率。