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handheld

  • Have you ever wanted to copy a file from your Desktop Computer to your handheld Pocket PC? This incl

    Have you ever wanted to copy a file from your Desktop Computer to your handheld Pocket PC? This included any Windows CE version too? Well if so, I will present an easy way to do it here: It s called the Remote Application Programming Interface, or, RAPI in this article. It is touched on in the MSDN but not really explained very well.

    标签: your Computer handheld Desktop

    上传时间: 2013-12-24

    上传用户:15071087253

  • Windows CE Programming: Developing Applications for the handheld PC .This book is designed to provi

    Windows CE Programming: Developing Applications for the handheld PC .This book is designed to provide information about Windows CE programming

    标签: Applications Programming Developing handheld

    上传时间: 2013-12-05

    上传用户:赵云兴

  • s/w handheld terminal ( based on Cygnal 8051f230)

    s/w handheld terminal ( based on Cygnal 8051f230)

    标签: handheld 8051f230 terminal Cygnal

    上传时间: 2014-01-08

    上传用户:epson850

  • DVBH发射端信道内码和调制部分的FPGA设计和实现

    数字电视技术和超大规模深亚微米的系统级芯片设计技术是当前信息产业中最受关注的两个方向。它们的交叉就是数字电视应用中的一系列系统级芯片和超深亚微米专用集成电路。其中信道处理系统及其相关芯片更是集中了数字信号处理前向纠错编解码等数字电视传输的核心技术,成为设计和开发整个数字电视系统的关键之一。数字高清晰度电视(Digital HDTV)做为第三代电视标准,已成为当今世界高技术竞争的焦点,本文正是从这个交叉点上出发对DVB-H(Digital Video Broadcasting-handheld)标准中所涉及的信道编码和调制部分进行了研究,重点分析了信道内编码部分的硬件优化实现。本项目完成了DVB-H传输系统信道编码的FPGA硬件设计和实现,系统所有FPGA硬件电路设计采用了Veillog HDL语言编写。同时对清华大学数字电视地面传输标准DMB-T(Terrestrial Digital Multimedia/TV Broadcasting)中的关键技术做了研究,与DVB标准中的相关技术做了对比。 本文首先对DVB.H以及COFDM的相关理论进行介绍和研究。然后针对DVB-H信道编码调制器中的部分核心算法的FPGA设计和实现进行了详细的研究工作,包括外编码、内编码(卷积删余)、内交织(包括比特交织和符号交织)、星座映射、帧形成、OFDM调制的部分设计等。相应地对DVB-H信道解码解调器中的部分算法的FPGA设计的研究工作做了描述,包括符号解交织和比特解交织。同时对清华大学数字电视地面传输标准DMB-T外接收机中频域和时域解交织模块的FPGA设计实现做了描述。 笔者在项目中完成的主要工作有: (1)与项目组成员合作制定系统框架,划分模块。 (2)对所负责的模块,包括外编码、内编码(卷积删余)、内交织(包括比特交织和符号交织)、星座映射、帧形成、OFDM调制的算法进行研究并加以优化,建立软件仿真模型,进行FPGA设计,仿真和实现。

    标签: DVBH FPGA 发射端 信道

    上传时间: 2013-06-09

    上传用户:rockjablew

  • allegro cx manual教程

    We would like to welcome you as a user of the Allegro CX, a rugged, handheld fi  eld PC for data collection. Developed with the input of data collection professionals worldwide, the Allegro CX is adaptable and versatile for use in a wide variety of data collection environments. The Allegro CX continues to utilize our ergonomic, lightweight design that is standard in our line of Allegro Field PCs. This design makes your Allegro easy to use for extended periods while moving to and from data collection sites in the fi  eld.  

    标签: allegro manual cx 教程

    上传时间: 2014-12-23

    上传用户:gaojiao1999

  • LTC1099半闪速8位AD转换数字光电二极管阵列

    This application note describes a Linear Technology "Half-Flash" A/D converter, the LTC1099, being connected to a 256 element line scan photodiode array. This technology adapts itself to handheld (i.e., low power) bar code readers, as well as high resolution automated machine inspection applications..  

    标签: 1099 LTC 8位 AD转换

    上传时间: 2013-11-21

    上传用户:lchjng

  • 手持式高功率电池充电器

      As the performance of many handheld devices approachesthat of laptop computers, design complexity also increases.Chief among them is thermal management—how doyou meet increasing performance demands while keepinga compact and small product cool in the user’s hand?For instance, as battery capacities inevitably increase,charge currents will also increase to maintain or improvetheir charge times. Traditional linear regulator-based batterychargers will not be able to meet the charge currentand effi ciency demands necessary to allow a product torun cool. What is needed is a switching-based chargerthat takes just about the same amount of space as a linearsolution—but without the heat.

    标签: 手持式 高功率 电池充电器

    上传时间: 2013-11-23

    上传用户:lu2767

  • DN442 I2C可控降压紧凑型同步DC/DC稳压器

      The LTC®3562 quad output step-down regulator is designedfor multicore handheld microprocessor applications thatoperate from a single Li-Ion battery. Its four monolithic, higheffi ciency buck regulators support Intel’s mobile CPU P-Stateand C-State energy saving operating modes. The outputvoltages are independently controllable via I2C, and eachoutput can be independently started and shut down. Designerscan choose from power saving pulse-skipping mode orBurst Mode® operation, or select low noise LDO mode. Thespace-saving LTC3562 is available in a 3mm × 3mm QFNpackage and requires few external components.

    标签: DC 442 I2C DN

    上传时间: 2013-10-07

    上传用户:1583060504

  • 按键开关控制器简化系统设计

      handheld designers often grapple with ways to de-bounceand control the on/off pushbutton of portable devices.Traditional de-bounce designs use discrete logic, fl ipflops, resistors and capacitors. Other designs includean onboard microprocessor and discrete comparatorswhich continuously consume battery power. For highvoltage multicell battery applications, a high voltageLDO is needed to drive the low voltage devices. All thisextra circuitry not only increases required board spaceand design complexity, but also drains the battery whenthe handheld device is turned off. Linear Technology addressesthis pushbutton interface challenge with a pairof tiny pushbutton controllers.

    标签: 按键开关 控制器 系统设计

    上传时间: 2013-11-17

    上传用户:ZJX5201314

  • DN440多功能TFT LCD偏置电源和白光LED驱动器

      The makers of handheld medical, industrial and consumerdevices use a wide variety of high resolution, small tomedium sized color TFT LCD displays. The power supplydesigners for these displays must contend with shrinkingboard area, tight schedules, and variations in displaytypes and feature requirements. The LTC®3524 simplifi esthe designer’s job by combining a versatile, easily programmed,TFT LCD bias supply and white LED backlightdriver in a low profi le 4mm × 4mm QFN package.

    标签: 440 TFT LCD LED

    上传时间: 2013-10-25

    上传用户:chens000