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    • 2. 发明申请
    • PASSIVE RFID READER AND OPERATION CONTROL METHOD THEREFOR
    • 被动RFID阅读器及其操作控制方法
    • US20080122581A1
    • 2008-05-29
    • US11746306
    • 2007-05-09
    • Ji-Hoon BAEHee-Sook MODong-Han LEECheng-Hao QUANChan-Won PARKGil-Young CHOICheol-Sig PYOJong-Suk CHAE
    • Ji-Hoon BAEHee-Sook MODong-Han LEECheng-Hao QUANChan-Won PARKGil-Young CHOICheol-Sig PYOJong-Suk CHAE
    • H04Q5/22
    • G06K7/0008G06K7/10356H04W74/08
    • Provided is a Radio Frequency Identification (RFID) reader that can minimize collision among RFID readers in an environment where there are a plurality of RFID readers within a limited operating environment by making each RFID reader select a channel at different delay time based on a random value, and a method for controlling operation of the RFID reader. The RFID reader includes a random value generating unit; a reader control unit for adaptively deciding a counter value for generating the random value; an anti-collision unit for preventing collision among a plurality of tags; a reader transmitting unit for generating a reader command message determined by the anti-collision unit, encoding the reader command message, and modulating the reader command message; a reader receiving unit for demodulating and decoding a tag signal; and a channel operation control unit for selecting a channel to be used for the communication with the tag.
    • 提供了一种射频识别(RFID)读取器,其可以在有限操作环境中存在多个RFID读取器的环境中最小化RFID读取器之间的冲突,使得每个RFID读取器基于随机值在不同的延迟时间选择信道 以及用于控制RFID读取器的操作的方法。 RFID读取器包括随机值生成单元; 读取器控制单元,用于自适应地确定用于生成随机值的计数器值; 用于防止多个标签之间的碰撞的防碰撞单元; 读取器发送单元,用于生成由反冲突单元确定的读取器命令消息,对读取器命令消息进行编码,以及调制读取器命令消息; 读取器接收单元,用于解调和解码标签信号; 以及频道操作控制单元,用于选择要用于与标签进行通信的频道。
    • 5. 发明申请
    • SATELLITE IMAGE FUSION METHOD AND SYSTEM
    • 卫星图像融合方法与系统
    • US20090226114A1
    • 2009-09-10
    • US12345240
    • 2008-12-29
    • Myung-Jin CHOIDong-Han LEEHyo-Suk LIM
    • Myung-Jin CHOIDong-Han LEEHyo-Suk LIM
    • G06K9/36
    • G06K9/0063G06K9/6289G06T3/4061G06T2207/10036G06T2207/10041G06T2207/20021G06T2207/30181
    • Satellite image fusion method and system are provided. The satellite image fusion method includes matching sizes of a panchromatic image and a multispectral image captured from a satellite image; dividing the panchromatic image and the multispectral image into a plurality of blocks; calculating coefficients to acquire Intensity (I) component image data using pixel values of each block of the multispectral image; and generating fused multispectral image data by applying the acquired I component image data to a fusion algorithm. In the multispectral image fusion, the distortion of the color information can be minimized and the multispectral image data of the high resolution can be attained. In addition, the present invention is applicable to not only the IKONOS images but also other satellite images, and the present image fusion can be carried out fast.
    • 提供卫星图像融合方法和系统。 卫星图像融合方法包括从卫星图像捕获的全色图像和多光谱图像的匹配大小; 将全色图像和多光谱图像分割成多个块; 使用多光谱图像的每个块的像素值来计算系数以获取强度(I)分量图像数据; 以及通过将所获取的I分量图像数据应用于融合算法来生成融合的多光谱图像数据。 在多光谱图像融合中,可以最小化颜色信息的失真,并且可以获得高分辨率的多光谱图像数据。 此外,本发明不仅可以应用于IKONOS图像,还适用于其他卫星图像,并且可以快速地执行当前的图像融合。