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    • 47. 发明授权
    • Optical projector
    • 光学投影仪
    • US5605390A
    • 1997-02-25
    • US590395
    • 1996-01-25
    • Steve BriceGary KingsleyDavid Payne
    • Steve BriceGary KingsleyDavid Payne
    • G03B33/12G02B27/18G03B21/00H04N5/74H04N9/31H04N17/00G03B21/14
    • H04N9/3105G02B27/1046G02B27/149G02B27/283
    • An optical projector is described that orients its optics engine preferably vertically within an enclosure that is higher than it is wide or deep. The invented optics engine uses a prismatic cube for color separation or beam splitting, with the prismatic elements within the cube being secured within a durable frame that mounts the three color light valves, e.g. twisted nematic liquid crystal display (LCD)-type shutters, in a predefined position and orientation relative to the prismatic cube. In order to improve image quality and brightness, especially of the notoriously difficult-to-reproduce green color, red ahd blue beams are S polarized, as is conventional, but the green beam is P-polarized. The invented optical projector preferably includes a frame having a footing portion for resting on a support surface, a light source high above the footing portion, optical convolution structure downstream from the light source for reverse-bending downwardly flowing light from the source, light modulation structure near the reverse bend region for infusing the light with image information and for directing modulated light upwardly in a projectable, imagecontaining stream of light and outward-projection directing structure high on the frame for receiving and outwardly directing such stream of light.
    • 描述了一种光学投影仪,其优选地在其高于其宽或深的外壳内垂直定向其光学引擎。 本发明的光学引擎使用棱镜立方体进行颜色分离或分束,立方体内的棱镜元件被固定在耐用框架内,该框架安装三色光阀,例如, 扭转向列液晶显示器(LCD)型百叶窗,相对于棱柱形立方体预定的位置和取向。 为了提高图像质量和亮度,特别是恶臭难以再现的绿色,红色蓝色光束是S极化的,如常规,但绿色光束是P偏振光。 本发明的光学投影仪优选地包括具有用于搁置在支撑表面上的基脚部分的框架,高于基脚部分的光源,在光源下游的光学卷积结构,用于逆向向下弯曲来自源的光的光线调制结构 靠近反向弯曲区域,用于将光输入图像信息,并将调制光向上引导到可投影的含图像的光流和向外投影指向结构的高位置上,用于接收和向外引导这种光流。
    • 48. 发明授权
    • Wireless broadband service
    • 无线宽带服务
    • US08149802B2
    • 2012-04-03
    • US11935037
    • 2007-11-05
    • Yuang LouDouglas DuetVijay PerumbetiDavid Payne
    • Yuang LouDouglas DuetVijay PerumbetiDavid Payne
    • H04W4/00H04W40/00H04W72/00H04L12/28H04L12/56
    • H04W84/14H04L12/2801H04L12/5601H04L2012/5607H04L2012/561H04L2012/5642H04W92/20
    • A fixed broadband wireless data access service providing shared wide-band packet-switched data transport for high speed data access in areas where conventional ADSL service and fiber optic service are unavailable. The wireless data access service is a point-to-multipoint cellular-type network that connects customers to data service providers through the ATM backbone of an existing network. Customers connect to the ATM backbone and data service provider through a cellular grid in which a wireless base station in each cell communicates with the individual customer wireless equipment within its cell site coverage area. The base stations are connected to an ATM backbone switch through wireless and wireline backhaul links. The upstream and downstream bandwidths of the wireless broadband network are engineered in various symmetric and asymmetric configurations to provide a shared packet-switched connection that emulates an uninterrupted, direct wireline ADSL connection. The wireless broadband network employs a data protocol of shared access bandwidth and adaptive asymmetric data rates to support multiuser service sessions by wireless transmission. The wireless broadband network is not network protocol specific and can be applied to wireless asymmetric digital subscriber line service, wireless integrated service digital network over digital subscriber line service, wireless very high bit rate digital subscriber line service, or wireless symmetric or single-line digital subscriber line service.
    • 一种固定宽带无线数据接入服务,在常规ADSL业务和光纤业务不可用的地区提供共享的宽带分组交换数据传输,用于高速数据接入。 无线数据接入服务是一个点对多点的蜂窝式网络,通过现有网络的ATM主干将客户连接到数据服务提供商。 客户通过蜂窝网格连接到ATM主干和数据服务提供商,其中每个小区中的无线基站与其小区站点覆盖区域内的个体客户无线设备进行通信。 基站通过无线和有线回程链路连接到ATM主干交换机。 无线宽带网络的上行和下行带宽被设计成各种对称和不对称配置,以提供模拟不间断的直接有线ADSL连接的共享分组交换连接。 无线宽带网络采用共享接入带宽和自适应非对称数据速率的数据协议,通过无线传输支持多用户业务会话。 无线宽带网络不是特定的网络协议,可以应用于无线非对称数字用户线路业务,数字用户线业务无线综合业务数字网络,无线非常高比特率数字用户线业务或无线对称或单线数字 用户线服务。
    • 50. 发明授权
    • Wireless broadband service
    • 无线宽带服务
    • US07292560B2
    • 2007-11-06
    • US10879477
    • 2004-06-29
    • Yuang LouDouglas DuetVijay PerumbetiDavid Payne
    • Yuang LouDouglas DuetVijay PerumbetiDavid Payne
    • H04Q7/20H04L12/56
    • H04W84/14H04L12/2801H04L12/5601H04L2012/5607H04L2012/561H04L2012/5642H04W92/20
    • A fixed broadband wireless data access service providing shared wide-band packet-switched data transport for high speed data access in areas where conventional ADSL service and fiber optic service are unavailable. The wireless data access service is a point-to-multipoint cellular-type network that connects customers to data service providers through the ATM backbone of an existing network. Customers connect to the ATM backbone and data service provider through a cellular grid in which a wireless base station in each cell communicates with the individual customer wireless equipment within its cell site coverage area. The base stations are connected to an ATM backbone switch through wireless and wireline backhaul links. The upstream and downstream bandwidths of the wireless broadband network are engineered in various symmetric and asymmetric configurations to provide a shared packet-switched connection that emulates an uninterrupted, direct wireline ADSL connection. The wireless broadband network employs a data protocol of shared access bandwidth and adaptive asymmetric data rates to support multiuser service sessions by wireless transmission. The wireless broadband network is not network protocol specific and can be applied to wireless asymmetric digital subscriber line service, wireless integrated service digital network over digital subscriber line service, wireless very high bit rate digital subscriber line service, or wireless symmetric or single-line digital subscriber line service.
    • 一种固定宽带无线数据接入服务,在常规ADSL业务和光纤业务不可用的地区提供共享的宽带分组交换数据传输,用于高速数据接入。 无线数据接入服务是一个点对多点的蜂窝式网络,通过现有网络的ATM主干将客户连接到数据服务提供商。 客户通过蜂窝网格连接到ATM主干和数据服务提供商,其中每个小区中的无线基站与其小区站点覆盖区域内的个体客户无线设备进行通信。 基站通过无线和有线回程链路连接到ATM主干交换机。 无线宽带网络的上行和下行带宽被设计成各种对称和不对称配置,以提供模拟不间断的直接有线ADSL连接的共享分组交换连接。 无线宽带网络采用共享接入带宽和自适应非对称数据速率的数据协议,通过无线传输支持多用户业务会话。 无线宽带网络不是特定的网络协议,可以应用于无线非对称数字用户线路业务,数字用户线业务无线综合业务数字网络,无线非常高比特率数字用户线业务或无线对称或单线数字 用户线服务。