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    • 32. 发明申请
    • SYSTEM AND METHOD FOR CALIBRATING AN OPTICAL READER SYSTEM
    • 用于校准光学读取器系统的系统和方法
    • WO2010074745A1
    • 2010-07-01
    • PCT/US2009/006665
    • 2009-12-22
    • GTECH CORPORATIONCONSTANT, Henry, J., Jr.
    • CONSTANT, Henry, J., Jr.
    • H04N1/40H04N1/407H04N1/00H04N1/028
    • H04N1/40056H04N1/00013H04N1/00045H04N1/00053H04N1/00063H04N1/00087H04N1/02865H04N1/4078
    • A method and system for calibrating optical reader systems employs a target with areas comprising linear gray scale levels. The gray scale levels include the darkest and the lightest scenes. The gray scale levels are illuminated by an array of LEDs and the light reflected from target impacts photo-transistors. The photo-transistors are biased in their linear ranges and the target is scanned while the LED drive current is changed. The photo-transistor responses to the different gray scale levels at the different LED drive currents are analyzed, and the LED drive current that produces a linear output from the photo-transistors over the gray scale dynamic range is selected. Several video channels may be used and their offsets and gains are normalized. Black offsets and black to white gain correction functions are generated for balancing or correcting each pixel. The correction functions may be applied by a processor for later raw image data of scenes scanned by the optical reader.
    • 用于校准光学读取器系统的方法和系统使用具有包括线性灰度级别的区域的目标。 灰度级包括最黑暗和最轻的场景。 灰度级由LED阵列照亮,从目标反射的光撞击光电晶体管。 光电晶体管被偏置在其线性范围内,并且在LED驱动电流改变的同时扫描目标。 分析了在不同LED驱动电流下对不同灰度级的光电晶体管响应,并且选择在灰度级动态范围内从光电晶体管产生线性输出的LED驱动电流。 可以使用几个视频通道,并且它们的偏移和增益被归一化。 产生黑色偏移和黑色至白色增益校正功能,用于平衡或校正每个像素。 校正功能可以由处理器应用于由光学读取器扫描的场景的稍后的原始图像数据。
    • 39. 发明申请
    • PREDICTIVE DIAGNOSTICS AND FAULT MANAGEMENT
    • 预测性诊断和故障管理
    • WO2010059183A1
    • 2010-05-27
    • PCT/US2009/006031
    • 2009-11-09
    • GTECH CORPORATIONGADHER, Bharat, KumarGADHER, Bharat, Kumar
    • GADHER, Bharat, KumarGADHER, Bharat, Kumar
    • G06F11/00
    • G06F11/008
    • The present application discloses a preventative, diagnostic maintenance system designed for gaming systems. Sensor and software monitor, accumulate, store and share information for efficient maintenance of the gaming systems. Diagnostic and prognostic tests are run and results prioritized wherein minor and intermittent problems that indicate potential future problems are stored. When a technician visit is prescribed, the system will present via a GUI a visualization of the status of gamed devices, and, forearm the technician with the high and low priority information regarding the high priority problems along with the low priority problems for all the game devices at the same site. The technician will be able to bring the specific tools, programs and parts to service the high and the low priority problems of all the game devices.
    • 本申请公开了一种为游戏系统设计的预防性诊断维护系统。 传感器和软件监控,累积,存储和共享信息,以有效维护游戏系统。 运行诊断和预后测试,优先考虑结果,其中存储了潜在的未来问题的次要和间歇性问题。 当技术人员访问规定时,系统将通过GUI呈现游戏设备状态的可视化,并且向技术人员提供关于高优先级问题的高优先级和低优先级信息以及所有游戏的低优先级问题 设备在同一站点。 技术人员将能够携带具体的工具,程序和部件来服务于所有游戏设备的高优先级和低优先级的问题。