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telecom

  • DN452 汽车应用的电源监视器

      The LTC®4151 is a high side power monitor that includesa 12-bit ADC for measuring current and voltage, as wellas the voltage on an auxiliary input. Data is read throughthe widely used I2C interface. An unusual feature in thisdevice is its 7V to 80V operating range, allowing it to coverapplications from 12V automotive to 48V telecom.

    标签: 452 DN 汽车应用 电源监视器

    上传时间: 2013-10-28

    上传用户:集美慧

  • 自举偏置高输入电压降压型控制器

      High voltage buck DC/DC controllers such as the LTC3890(dual output) and LTC3891 (single output) are popular inautomotive applications due to their extremely wide 4V to60V input voltage range, eliminating the need for a snubberand voltage suppression circuitry. These controllersare also well suited for 48V telecom applications whereno galvanic isolation is required.

    标签: 自举偏置 输入电压 降压型控制器

    上传时间: 2013-10-31

    上传用户:wwwe

  • MT8870D DTMF解码芯片

    Features• Complete DTMF Receiver• Low power consumption• Internal gain setting amplifier• Adjustable guard time• Central office quality• Power-down mode• Inhibit mode• Backward compatible withMT8870C/MT8870C-1Applications• Receiver system for British telecom (BT) orCEPT Spec (MT8870D-1)• Paging systems• Repeater systems/mobile radio• Credit card systems• Remote control• Personal computers• Telephone answering machine

    标签: 8870D 8870 DTMF MT

    上传时间: 2013-11-20

    上传用户:mpquest

  • 电池组电压测量的研究

      Automobiles, aircraft, marine vehicles, uninterruptiblepower supplies and telecom hardware represent areasutilizing series connected battery stacks. These stacksof individual cells may contain many units, reaching potentialsof hundreds of volts. In such systems it is oftendesirable to accurately determine each individual cell’svoltage. Obtaining this information in the presence of thehigh “common mode” voltage generated by the batterystack is more diffi cult than might be supposed.

    标签: 电池组 电压 量的研究

    上传时间: 2013-10-24

    上传用户:kang1923

  • 用matalab开发的随机数生成程序包

    用matalab开发的随机数生成程序包,用于各种随机数的生成,可到以下网址更新和浏览详细的说明:http://www.math.uu.se/research/telecom/software/

    标签: matalab 随机数 程序

    上传时间: 2015-07-11

    上传用户:坏坏的华仔

  • Easy to use SMS/MMS Messaging Gateway to develop Content Delivery Platforms by GSM Operators,Content

    Easy to use SMS/MMS Messaging Gateway to develop Content Delivery Platforms by GSM Operators,Content Providers and even non-telecom guys. Uses file system for data flow.Written for .NET 2.0 in C#

    标签: Content Messaging Platforms Operators

    上传时间: 2014-01-01

    上传用户:1109003457

  • CCISP考试指南与导读 CISSP STUDY NOTES FROM CISSP PREP GUIDE 1 DOMAIN 1 – SECURITY MANAGEMENT PRACTICES 2

    CCISP考试指南与导读 CISSP STUDY NOTES FROM CISSP PREP GUIDE 1 DOMAIN 1 – SECURITY MANAGEMENT PRACTICES 2 DOMAIN 2 – ACCESS CONTROL SYSTEMS 7 DOMAIN 3 – telecom AND NETWORK SECURITY 13 DOMAIN 4 – CRYPTOGRAPHY 34 DOMAIN 5 – SECURITY ARCHITECTURE AND MODELS 46 DOMAIN 6 – OPERATIONS SECURITY 56 DOMAIN 7 – APPLICATIONS AND SYSTEM DEVELOPMENT 63 DOMAIN 8 – BUSINESS CONTINUITY AND DISASTER RECOVERY PLANNING 70 DOMAIN 9 – LAW, INVESTIGATION AND ETHICS 78 DOMAIN 10 – PHYSICAL SECURITY 87

    标签: CISSP MANAGEMENT PRACTICES SECURITY

    上传时间: 2014-02-13

    上传用户:sy_jiadeyi

  • The line echo canceller (LEC) is designed to provide the maximum attainable transparent voice qualit

    The line echo canceller (LEC) is designed to provide the maximum attainable transparent voice quality for de-echoing of a PSTN or POTS connection in voice-over-LAN systems with internal delays, or on a codec end of a telecom switch,基于TI 54X/55X平台

    标签: transparent attainable canceller designed

    上传时间: 2014-01-17

    上传用户:qoovoop

  • The ITU-T(telecommunication Standardization Sector)is a permanent organ of the International telecom

    The ITU-T(telecommunication Standardization Sector)is a permanent organ of the International telecommunication Union(ITU).The ITU-T is responsible for studying technical,operating and tariff questions and issuing Recommen- dations on them with a view to standardizing telecommunications on a worldwide basis.

    标签: telecommunication Standardization International permanent

    上传时间: 2014-02-20

    上传用户:sammi

  • During the past four years, most of our research activities have been focused on image but also vide

    During the past four years, most of our research activities have been focused on image but also video and 3-D objects processing for security applications (watermarking and biometrics) and communications (talking heads, interfaces), with a special emphasis on facial images. More about our work can be found at http://www.eurecom.fr/~image. Our research activities are conducted with the backing of several industrials, in particular France telecom Research and STMicroelectronics. For the past few years, we have had a regular scientific collaboration on Fractal Image Coding, Watermarking and Biometrics with the University of California, Santa Barbara (UCSB), in particular with Prof. K. Ros

    标签: activities research focused During

    上传时间: 2014-11-25

    上传用户:123啊