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    • 9. 发明申请
    • IMAGE-BASED DETERMINATION OF CO AND CO2 CONCENTRATIONS IN VEHICLE EXHAUST GAS EMISSIONS
    • 基于图像的车辆排放气体CO和CO2浓度的确定
    • US20130181836A1
    • 2013-07-18
    • US13419856
    • 2012-03-14
    • George Cunha CARDOSOLalit Keshav MESTHA
    • George Cunha CARDOSOLalit Keshav MESTHA
    • G06K9/62G08B21/00H04N7/18
    • G01M15/108
    • What is disclosed is a system and method for image-based determination of concentration of CO and CO2 in a vehicle's exhaust gas in an emissions testing environment. In one embodiment, the present method involves receiving an IR image of the exhaust plume of a motor vehicle intended to be tested for CO and CO2 concentrations. The IR image has been captured using a mid-wave infrared camera with at least one optical filter tuned to the infrared absorption band of CO and CO2. The images are pre-processed to isolate pixels which contain the exhaust plume. The intensity values of pixels in those isolated regions are normalized and concentrations of CO and CO2 are determined via a calibration curve which relates pixel intensities to concentrations. The concentrations are compared to an emissions standard set for the vehicle to determine whether the vehicle is a gross polluter.
    • 所公开的是用于在排放测试环境中基于图像确定车辆废气中CO和CO 2浓度的系统和方法。 在一个实施例中,本方法包括接收旨在被测试CO和CO 2浓度的机动车辆的排气羽流的IR图像。 使用中波红外摄像机捕获IR图像,其中至少一个光滤波器被调谐到CO和CO 2的红外吸收带。 图像被预处理以分离包含排气羽流的像素。 将这些孤立区域中的像素的强度值归一化,并通过将像素强度与浓度相关联的校准曲线来确定CO和CO 2的浓度。 将浓度与车辆的排放标准进行比较,以确定车辆是否是总污染物。
    • 10. 发明申请
    • OPTICAL DATA TRANSMISSION SYSTEM FOR DIRECT DIGITAL MARKING SYSTEMS
    • 用于直接数字标注系统的光学数据传输系统
    • US20120268774A1
    • 2012-10-25
    • US13093674
    • 2011-04-25
    • George Cunha CardosoMandakini KanungoJeffrey Folkins
    • George Cunha CardosoMandakini KanungoJeffrey Folkins
    • G06F15/00
    • G03G15/34
    • An apparatus for printing a latent image includes a light source, a photodetector, a rotary contact, a power supply, driving electronics and a plurality of thin-film transistors. The light sources receives the digital data signals and transmits encoded optical data signals. The photodetector receives the encoded optical data signals and transmits signals including selection signals and digital pixel voltages. A rotary contact receives operating voltage potentials from a controller and the power supply receives the operating voltage potentials from the rotary contact. The power supply generates a low voltage potential, a groun potential and a high voltage potential. Driving electronics receive a low voltage potential, a ground potential, selection signals and digital pixel voltages and generate bias signals and pixel voltages. The plurality of TFTs receive the high voltage potential, the bias signals and the pixel voltages and drive the hole injection pixels to generate an electrostatic latent image.
    • 用于打印潜像的装置包括光源,光电检测器,旋转接触器,电源,驱动电路和多个薄膜晶体管。 光源接收数字数据信号并发送编码的光数据信号。 光电检测器接收编码的光数据信号并发送包括选择信号和数字像素电压的信号。 旋转触点从控制器接收工作电压电位,并且电源接收来自旋转触点的工作电压电位。 电源产生低电压电位,发电电位和高电压电位。 驱动电子器件接收低电压电位,地电位,选择信号和数字像素电压,并产生偏置信号和像素电压。 多个TFT接收高压电位,偏置信号和像素电压并驱动空穴注入像素以产生静电潜像。