key-encoder 中文意思是什麼
key-encoder
解釋
鍵盤編碼器-
Opticl encoder and decoder are key components of ocdma
光編解碼器是ocdma系統的核心部件。 -
The distributed plc system of the floodgate ' s opening measuring presented by the paper has many advantages such as high reliable operation, high measuring precision, having the network communication function, convenient installation and correction, etc. this thesis further studies the key device for the floodgate ' s opening measuring, the rotary encoder, selects the absolute rotary encoder adopting the binary cyclic code, studies the method for transforming the cyclic code to the binary data and according to the transforming formula designs the ladder diagram program
本論文研製的分散式plc閘門開度測量系統具有工作可靠、測量精度高、具有聯網通信功能、安裝和校正方便等特點。本論文深入研究了閘門開度檢測的關鍵器件? ?旋轉編碼器，選用了採用二進制循環碼編碼的絕對式旋轉編碼器，研究了將二進制循環碼轉換為二進制數的方法，根據轉換公式設計了plc的梯形圖轉換程序。 -
This paper research the mpeg - 4 standard first and realize the encoder and decoder of video of mpeg - 4. then the paper emphasize two key techniques in mpeg - 4 encoder : motion estimation and sprite encode. motion estimation takes the largest time in all parts of mpeg - 4 encoder. the paper concluded some typical me techniques, research and realize the mvfast arithmetic whice is recommend by iso, then improved mvfast by considering the temporal candidate motion vector and adjustal thresholds
然後，本論文重點研究了mpeg - 4編碼過程中兩項關鍵技術：運動估計和背景圖像編碼。運動估計是編碼過程中最重要，耗時最長的部分。本論文總結了常見的運動估計演算法，深入研究並實現了iso推薦的運動估計優化演算法mvfast ，在此基礎上，引入了時間參考運動向量和可調的門限參考值，對mvfast演算法進行了改進。 -
This paper discussed the theory of encoding and decoding of turbo codes, researched some key techniques in encoder and decoder, analyzed the question of selection of the component codes and generation polynomial in encoder
本文討論了turbo碼的編譯碼原理，研究在其編譯碼器中的關鍵技術，重點探討了在編碼器中成員碼以及生成多項式的選擇問題。 -
Firstly, the basic principle of ocdma, the basic theory of ooc and the key technologies of ocdma are introduced. the development, research status and trends of ocdma technologies are also summarized. combining with other multiplexing technologies and using fiber gratings as the encoder / decoder are the trends of ocdma system
論文首先對ocdma的基本原理、光正交碼的基本理論以及關鍵技術進行介紹，對光碼分多址技術發展歷史、研究現狀以及發展趨勢進行總結，指出同其它復用方式相結合的混合全光網路和採用光纖光柵編解碼器是光碼分復用技術最有希望的發展方向。 -
Design and implementation of a fast round robin scheduler, in which a pipelined barrel shifter and a pipelined priority encoder are used ; testbench development of functional simulation for module verification and system verification, in which the bfm simulation model are used and some reference examples are proposed ; discussing the questions that should be paid attention to when using fpga to design high speed circuits and some design skills ; taking part in the system ' s integration and fpga implementation ; taking part in the system ' s test and verification ; the design of this thesis has provided some key method for inter - communication among different network processors, and also accelerated the development of communication products
討論了用fpga設計高速電路應注意的問題和一些常用的設計技巧；參與整個轉換邏輯的系統集成和fpga實現；參與系統的驗證工作；通信協議轉換邏輯的設計不僅可以解決不同網路處理器之間互通的問題，而且對于促進國產數據通信產品的研究與開發具有很重要的意義。同時在設計的過程中，進一步地探討了基於fpga的高速電路設計技術，對于fpga的設計有參考價值。 -
The characteristic of mpeg - 4 accelerates the development of multimedia. the paper introduces the study background and necessity of mpeg - 4 for one thing. then its system standard is described and the key technique of video encoder in the verification models is analyzed
本文首先介紹了mpeg - 4的研究背景和研究的必要性，之後簡單的概述了mpeg - 4的系統標準，詳細分析了校驗模型中的視頻編碼，對mpeg - 4的標準有了大概的了解。 -
As a result, video sequence has rather relativity on time axis, motion estimation and motion compensate can reduce this relativity effectively, so it has been widely used in many video standards such as and mpeg, as a key module in video encoder, motion estimation is rather complex in computation
由於視頻序列圖像在時間軸上具有較強的相關性，運動估計（ me ）及運動補償（ mc ）技術可以有效的減少時間相關性，因此該技術被廣泛應用於各種視頻壓縮編碼方案中如mpeg和h . 26x 。
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