共查询到18条相似文献,搜索用时 109 毫秒
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首先介绍了内置T6963控制器的图形液晶显示模块MGLS240128T的电路特性和基本功能,然后结合该模块在新型微处理器线路保护装置中的作用,给出其硬件接口电路并介绍了软件设计要点。在新型微处理器线路保护装置中利用液晶显示可实现信息显示的直观化和清晰化,体现了人机交互的快速性等技术特点。 相似文献
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点阵式液晶显示模块具有性能稳定、适合应用于便携式智能仪器仪表等特点,是一种较低价位、具有较高显示功能的显示器件。文中介绍了内藏液晶显示控制器T6963C的液晶显示模块的特点及其显示方式。在此基础上,给出了该液晶显示模块与基于DSP(数字信号处理器)TMS320LF2407A的嵌入式系统的硬件接口电路和部分C语言代码。最后,实现了该液晶显示模块在TMS320LF2407A的嵌入式系统中的液晶显示功能,成为该现场温度监控系统的重要组成部分。其程序与硬件逻辑图也可为其他DSP系统提供参考。 相似文献
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介绍了基于T6963C控制器的液晶显示模块的硬件结构、特点和使用方法以及单片机控制下的硬件接口电路;叙述了T6963C的状态字和指令集在软件编程中的作用和特点,说明了基于该控制器的液晶显示模块图形方式下的字符汉字显示技术。 相似文献
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随着液晶显示技术的发展,液晶显示模块的应用越来越广泛。主要介绍基于T6963C控制器的液晶显示模块MGLS240128T的配置、特点以及T6963C控制器的指令系统,在此基础上结合实际应用,给出了关于标志字读、无参数写指令、单参数写指令、双参数写指令以及读数据等几个常用的8051编程宏,具有较强的实用价值。 相似文献
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提出了一种基于FPGA和T6963C模块来控制液晶显示的实现方法,介绍了液晶显示控制器T6963C的性能特点,给出了FPGA与液晶显示屏WG240128B的硬件接口电路、软件设计流程和液晶显示程序。 相似文献
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This paper presents a performance analysis of Wi-Fi Direct power management schemes and exploits their problems to design a novel, enhanced power management for future wireless USB (WSB) applications. Wi-Fi Direct will become a key technology for the support of future WSB services that require high standards of service quality and power efficiency at the same time. To provide this, Wi-Fi Direct defines two power management schemes, opportunistic power save mode and notice-of-absence. Even though each scheme has its own characteristics and advantages, specification does not have any definition of how to select the schemes and its parameters based on the type of WSB application being serviced. We analyze the properties of the two power management schemes of Wi-Fi Direct, and discover that their performance can greatly vary depending on the number and type of WSB applications that is being transmitted in the network. To solve this problem, we propose a novel power saving algorithm that can dynamically change the power management of Wi-Fi Direct. Our work is extensively evaluated using the Wi-Fi Direct module implemented in the NS-3 simulator. 相似文献
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Mónica Penedo María J Lado Pablo G Tahoces Miguel Souto Juan J Vidal 《IEEE transactions on information technology in biomedicine》2006,10(2):354-361
The functionalities of the JPEG2000 standard have led to its incorporation into digital imaging and communications in medicine (DICOM), which makes this compression method available for medical systems. In this study, we evaluated the compression of mammographic images with JPEG2000 (16 : 1, 20 : 1, 40 : 1, 60.4 : 1, 80: 1, and 106 : 1) for applications with a computer-aided detection (CAD) system for clusters of microcalcifications. Jackknife free-response receiver operating characteristic (JAFROC) analysis indicated that differences in the detection of clusters of microcalcifications were not statistically significant for uncompressed versus 16: 1 (T = -0.7780; p = 0.4370), 20 : 1 (T = 1.0361; p = 0.3007), and 40 : 1 (T = 1.6966; p = 0.0904); and statistically significant for uncompressed versus 60.4 : 1 (T = 5.8883; p < 0.008), 80 : 1 (T = 7.8414; p < 0.008), and 106 : 1 (T = 17.5034; p = < 0.008). Although there is a small difference in peak signal-to-noise ratio (PSNR) between compression ratios, the true-positive (TP) and false-positive (FP) rates, and the free-response receiver operating characteristic (FROC), figure of merit values considerably decreased from a 60 : 1 compression ratio. The performance of the CAD system is significantly reduced when using images compressed at ratios greater than 40 : 1 with JPEG2000 compared to uncompressed images. Mammographic images compressed up to 20 : 1 provide a percentage of correct detections by our CAD system similar to uncompressed images, regardless of the characteristics of the cluster. Further investigation is required to determine how JPEG2000 affects the detectability of clusters of microcalcifications as a function of their characteristics. 相似文献
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H. K. Pati 《Wireless Personal Communications》2006,39(4):435-456
In wireless networks we evaluate the distance of a mobile from its base station and from other base stations in some neighboring cells to estimate a channel and also to measure interference caused by a co-channel. In this paper a systematic tracking of the random movement of a mobile is presented. In this work we find the position of any mobile at any point of time within its complete call duration. Using this model not only we can locate the mobile but also can find the distance of any mobile from the base station of the same cell and also when they belong to different cells. Such a model seems to be very promising in giving a platform to study the performance of HCA/FLCA and DCA like advanced channel allocation techniques.
H. K. Pati received his MCA degree from UCE. Burla, under Sambalpur University, India, in 1998. Then he received his ME degree in computer science and engineering from REC Rourkela, India (now named as NIT Rourkela, India) in 2000. Since 2000 he has been working as a PhD student in the CSE Department IIT Kharagpur, India. Since September 2005 he is also associated with the Department of Computer Science, Trinity College, University of Dublin, Dublin 2, Ireland as a research staff (Postdoctoral research fellow). His current research focus is on quality of service provisioning in personal wireless communications. 相似文献
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In Europe, the challenge of the design of third-generation cellular mobile radio systems has been taken numerous research and development activities in this field have been started. The authors try to give an overview of the European activities in this field. The article is organized in two parts. In the first part, the requirements for third-generation cellular mobile radio systems such as Universal Mobile Telecommunications System (UMTS) and Future Public Land Mobile Telecommunications System (FPLMTS), which has been named International Mobile Telecommunications after the year 2000 (IMT-2000) are presented concisely. Also, the importance and challenge of the multiple access design for such third-generation cellular mobile radio systems is explained. In the second part, numerous European research activities with focus on the multiple access design for third-generation cellular mobile radio systems are reviewed 相似文献
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介绍了用于高清晰度电视(HDTV)接收机芯片中的视频后处理屏幕显示单元,实现了在监控系统中加入屏幕显示信息(包括节目表、节目信息、频道选择信息等),重点介绍了实现该功能的硬件设计。 相似文献
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We investigated the effect of different formulation strategies on the preparation of TiO2 screen printable pastes starting from the same organic colloidal suspension for dye-sensitized solar cells (DSSCs) application. As first strategy, we developed TiO2 pastes starting from nano-crystalline powder dried from the synthetized suspension, with and without an additional acid treatment, obtaining non-transparent scattering sintered layers. Instead, we demonstrate that starting from the sol solution is a key factor to obtain a well nano-dispersed TiO2 paste. The novel paste process resulted in a final homogeneous and semitransparent porous layer (T>80% @450–550 nm). In order to evaluate the properties of TiO2 powders and inks we performed thermal analysis, BET and FTIR measurements. The films were screen printed on FTO (fluorinedoped tin oxide) glass and characterized after sintering via profilometry, FE-SEM analysis and UVVis spectra measurements. The photo-anode was further validated in small (2 cm2) and large (90 cm2) active area DSSCs, giving an average photovoltaic efficiency respectively of 5,22% and 2,39%, comparable with commercially available TiO2 paste with similar composition. 相似文献