http://hdl.handle.net/10397/61 Search the Channel search http://repository.lib.polyu.edu.hk/jspui/simple-search http://hdl.handle.net/10397/5776 Title: Chipless microwave identification tag<br/><br/>Authors: Yung, K. L.; Chan, Ching-yuen; Cheng, Ki-wai David<br/><br/>Abstract: A chipless microwave identification tag (200) comprising: a dielectric substrate (210); and a plurality of antenna elements (220) made from a conductive material and disposed on at least one surface (205, 255) of the dielectric substrate (210); wherein when the tag (200) is excited by an incident microwave signal (131), a reflected wave (141) to identify the tag (200) is generated with a number of specific frequencies altered by microwave resonation of the antenna elements (220). http://hdl.handle.net/10397/5245 Title: Lens used for improving diffraction efficiency of blue-ray disc and China high definition disc = 一种用于增强蓝光光盘和中国高清光盘衍射效率的透镜<br/><br/>Authors: Lee, W. B. (李榮彬); To, Sandy (杜雪); Li, Lihua (李莉華); Wang, Wenkui (王文奎)<br/><br/>Abstract: 本实用新型涉及一种用于增强蓝光光盘和中国高清光盘衍射效率的透镜，包括第一透镜面(1)和第二透镜面(2)，第一透镜面为自由曲面，第二透镜面为非球面。第一透镜面和第二透镜面将入射光聚焦到聚焦区，聚焦区内包括聚焦在蓝光光盘信息记录层(31)和中国高清光盘信息记录层(41)。通过相位控制结构使得透镜对应蓝光光盘和中国高清光盘的衍射效率得到提升，降低能量损耗和改善杂散光产生。 http://hdl.handle.net/10397/5240 Title: RFID (Radio Frequency Identification Device) electronic seal based container management = 一种基于RFID电子封条的集装箱管理系统和方法<br/><br/>Authors: Kwok, Siu Keung (郭少强); Wang, Muwen (王牧文)<br/><br/>Abstract: The invention relates to an RFID (Radio Frequency Identification Device) electronic seal based container management system and method. The management system comprises an RFID electronic seal, sensing equipment and a control device, wherein the control device is used for giving a sealing or opening command to the RFID electronic seal and acquiring the state information of a container from the sensing equipment; the RFID electronic seal is used for sealing or opening the container according to the command given by the control device and returning the state information of the container to the control device; the RFID electronic seal comprises a first communication module and a first power supply unit; the sensing equipment is used for monitoring the state information of the container and returning the state information to the control device according to a request of the control device; the sensing equipment comprises a second communication module and a second power supply unit; and the RFID electronic seal and the sensing equipment automatically enter a dormant state after the operation is finished each time. The technical scheme can provide a low-power consumption electronic seal for a long-distance transportation and also provide low-power consumption sensing equipment.; 本发明涉及一种基于RFID电子封条的集装箱管理系统和方法，该管理系统包括RFID电子封条、传感设备、控制装置；控制装置用于向RFID电子封条下达密封或开启指令、向传感设备获取集装箱的状态信息；RFID电子封条用于依据控制装置下达的命令密封或开启集装箱并返回集装箱的状态信息至控制装置；RFID电子封条包括第一通信模块、第一电源供应单元；传感设备用于监控集装箱的状态信息并依据控制装置的请求返回状态信息至控制装置；传感设备包括第二通信模块、第二电源供应单元；RFID电子封条和所述传感设备每次完成操作后自动进入休眠状态。本发明的技术方案可提供适于长距离运输的低功耗的电子封条；还可提供低功耗的传感设备。 http://hdl.handle.net/10397/5038 Title: Physimetric authentication of physical object by digital identification (DID) = 通过数字识别(DID)对实体对象进行物理度量鉴别<br/><br/>Authors: Kwok, Siu Keung (郭少强); Cheung, Chi-fai Benny (張志輝); Tsang, Hing Choi (曾慶才); Lee, W. B. (李榮彬); Tan, Burly K. (陳炎材); Ng, Pui Him (吳沛謙)<br/><br/>Abstract: The present invention relates a scanable product made of a physical object and an ID Container, such ID Container possessing on its memory a Unique ID and a stored coded locking mechanism. The stored coded locking mechanism is generated by inputting physimetric property of the physical object and its Unique ID into hash functions to create an unintelligible code. Methods of making such a scanable product, and methods of authenticating a scanable product are also taught.; 本发明涉及一种可扫描产品，所述产品包括实体对象和ID容纳装置。所述ID容纳装置在其存储器上存储有唯一的ID标识并存储有编码锁机制。通过将实体对象的物理度量特性和唯一的ID标识输入至杂凑函数(hash)而产生一个难解的码，可以生成所述存储的编码锁机制。本发明还提出一种产生可扫描产品的方法以及鉴别可扫描产品的方法。