pstn 中文意思是什麼

pstn 解釋
電話回線
  1. In jul 1997, ietf was initiated by the bell lab, and erected up the pstn interne ( pint ) interworking force aimed to make the ip users to use the traditional services of the pstn by the most popular www application and research the network framework and protocols that provide this function

    1997年7月， ietf由貝爾實驗室發起，成立了pstn internet互通（ pint ）工作組，目的在於使ip用戶能通過最流行的www應用來使用pstn的傳統業務，研究支持該功能的網路結構和協議。
  2. Adsl, is the most cost - effective technology recently, because it can utilize the existing loop line of pstn. lt is also the most popular one of the rbb ( residential broadband network ) technologies. the paper provides a scheme for user - side adsl access - - - - - - embedded adsl gateway

    目前有著多種寬帶接入技術和方案可供選擇，其中adsl技術可以在不改變現有接入線路的情況下達到寬帶接入的目的，可以最大限度的利用現有的線路資源，是目前居民寬帶接入最受歡迎的一種。
  3. Promote prepaid operation improve pstn income

    大力推行預付費提升固話收入
  4. Research and implementation for v. 80 protocol into pstn videophone

    80協議的研究與實現
  5. The technical requirement and test method for pstn videophone

    Pstn可視電話進網技術要求及測試方法
  6. Based on the above - mentioned situation, it is therefore suggested that the fixed telecom network company will focus on how to add voice service on ip man, and to increase value added service, i. e. to develop the pure sip packet voice on the broadband man, and to boundle instant messageand user presence business ; to promote mgcph. 248 mode and sip mode on the newly established community using broadband lan access ; the big media gateway in the soft switching will mainly suitable for the broadband ip man voice service and pstn interconnection

    根據以上情況的分析，建議固定網路電信公司將發展的重點放在如何在寬帶ip城域網上增加話音業務，提高增值收入方面。即在寬帶城域網上發展純sip分組話音方式，綁定即時消息和用戶狀態（ presence ）業務;在新建寬帶lan接入小區推廣mgcph . 248話機和sip話機方式；軟交換中大媒體網關方式主要用作寬帶ip城域網上話音業務與pstn互通方面。
  7. In the past few years, there has been significant interest in digital video applications like video conferencing and video e - mailing over internet, video telephony over public switched telephone networks ( pstn ) and wireless networks, etc. by removing spatio - temporal redundancies existing in adjacent frames, motion estimation can reduce the coding bit - rate significantly

    低速率視頻編碼技術已在許多領域得到了應用，如在pstn （公共電話網） 、無線網、 n - isdn （窄帶綜合業務數字網） 、 b - isdn （寬帶綜合業務數字網）上傳輸視頻會議、可視電話和無線手持終端等。
  8. The system uses the embedded microprocessor s3c44b0x to control the sensor to gather water data, then processes, saves and displays them. at the same time it waits to be connected with pc at the control center, receives command - string, then uses modem to send the corresponding data with predefined communication protocol to pc through pstn

    測點通過嵌入式微處理器s3c44box控制傳感器採集水位數據，處理后保存並顯示；同時等待與控制中心的pc機建立連接，並根據接收的命令將相應的數據按照預先約定的通信協議，通過modem經公用電話網傳送到控制中心。
  9. In order to dispose data at monitoring field ; pc is adopted as local master, which constructs the second level monitoring system. its function is data processing, and this data are useful f or local relative department the third level monitoring system is composed of communication unit, modem and pstn

    在現場為了進一步處理數據，採用pc機作為上位機進一步數據處理，組成第二級智能監測系統，它的功能完成顯示列印，歸檔，供本地有關部門作為分析依據。
  10. This project focus on r & d of remote information transfer between some device, especially in the water - quality monitoring system. after learning the architecture of the popular pstn dial - up network. vpn broadband network and gsm wireless network, a new solution for remote communication was proposed. under this idea frame a communication hardware platform and software was developed

    本課題主要針對環境水質在線監控系統中的信息傳輸問題，對遠距離設備之間的信息傳輸方式及發展進行了研究，結合目前流行的pstn撥號上網方式、 vpn組網技術和gsm無線數字通訊技術，提出了一種新型的遠程設備之間信息傳輸與互聯的方案，並按照這個思路搭建出系統所需的硬體平臺，設計出實現這個方案的應用程序。
  11. The desing of a remote intelligent terminal based on pstn

    的遠程智能終端的設計
  12. In this thesis, the wireline telephone gateway interface will be researched for the interconnection between digital trunking communication system and wireline telephone systems ( such as pabx, pstn etc. )

    本文研究的電話網關介面就是要實現數字集群通信系統和有線電話系統（如pabx 、 pstn等）互聯的介面。
  13. Development of cpe based on the pstn network

    基於固定電話網的中文簡訊息終端開發
  14. Electrical domestic appliance remote control system based on pstn

    針對電話網的家電遠程遙控系統
  15. Remote monitoring system based on pstn and its key techniques

    一種基於電話網的遠程監測系統及其關鍵技術
  16. Pstn public switched telephone network

    公用交換式電話網
  17. The demodulation circuit interfaced with the local bus, demodulates the signals transmitted on the pstn and restores the acquired data. in order to work nomally, hardware needs cooperation with software. the driver for pci demodulator has been developed

    本地總線上掛接解調電路，對傳輸來的信號進行解調，恢復採集的數據。硬體需有軟體的配合才能正常的工作，因此為pci解調器設計了驅動程序。
  18. Essential requirements for terminal equipment intended for connection to digital interfaces of the pstn using channel associated signalling

    使用相關信號通道將終端設備聯接于公共開關電話網路數字介面的基本要求
  19. There are some of implement of video communication around us, such as video phone based on pstn, and monitor system

    在我們的生活當中已經有很多視頻通信的應用，如基於pstn的可視電話，各種無人操作場合的監控系統等。
  20. According to the technical innovation requirement by chunhai thermoelectric plant of dalian, a remote monitoring and control system is designed after analyzing the request of the project. the data from cdv - 12 gas volume corrector will be transferred through the modem and the public - switched telephone network ( pstn )

    本課題以春海熱電廠的技術改造工程項目為背景，在對春海熱電廠提出的技術要求作出具體分析后，提出了利用公用電話網進行遠程的數據傳輸與監控的整體設計方案。
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