【正文】 0 / 37 企業(yè)秘密IPTV機(jī)頂盒技術(shù)規(guī)范機(jī)頂盒技術(shù)規(guī)范機(jī)頂盒技術(shù)規(guī)范 （暫行稿）中國電信集團(tuán)公司2022年3月i / 37目 錄前 言 ..........................................................................................................................................................1 適用范圍 ............................................................................................................................................3 引用標(biāo)準(zhǔn) ............................................................................................................................................4 縮略語 ................................................................................................................................................5 機(jī)頂盒定義 ........................................................................................................................................7 機(jī)頂盒應(yīng)用功能要求 ........................................................................................................................8 機(jī)頂盒支持協(xié)議 ............................................................................................................................8 網(wǎng)絡(luò)協(xié)議 ................................................................................................................................8 應(yīng)用協(xié)議 ................................................................................................................................8 EPG 及用戶界面顯示要求 ............................................................................................................9 機(jī)頂盒應(yīng)支持的業(yè)務(wù)應(yīng)用能力 ..................................................................................................10 基本業(yè)務(wù)的支持能力 ..........................................................................................................10 瀏覽類（ B/S）增值業(yè)務(wù)支持能力 ....................................................................................11 客戶端類 (C/S)增值業(yè)務(wù)的支持能力 .................................................................................11 通信類業(yè)務(wù)能力（可選） ..................................................................................................11 JVM 虛擬機(jī) ..........................................................................................................................12 支持多進(jìn)程的業(yè)務(wù)能力 ......................................................................................................12 音視頻、圖片支持能力 ..............................................................................................................12 視頻要求 ..............................................................................................................................12 音頻要求 ..............................................................................................................................13 圖形要求 ..............................................................................................................................13 音視頻質(zhì)量要求 ..........................................................................................................................14 圖像質(zhì)量的主觀評價(jià) ..........................................................................................................14 聲音質(zhì)量的主觀評價(jià) ..........................................................................................................14 機(jī)頂盒操作要求 ..............................................................................................................................15 開機(jī) ..............................................................................................................................................15 開機(jī)方式 ..............................................................................................................................15 開機(jī)的圖像信號(hào) ..................................................................................................................15 斷電開機(jī)過程 ......................................................................................................................15 關(guān)機(jī) ..............................................................................................................................................15 關(guān)機(jī)方式 ..............................................................................................................................15 關(guān)機(jī)期間的圖像信號(hào) ..........................................................................................................15 關(guān)機(jī)過程 ..............................................................................................................................16 業(yè)務(wù)操作 ......................................................................................................................................16 菜單的操作 ..........................................................................................................................16 節(jié)目播放要求 ......................................................................................................................16 節(jié)目轉(zhuǎn)換要求 ......................................................................................................................16 瀏覽類業(yè)務(wù)操作要求 ..........................................................................................................16ii / 37 客戶端類業(yè)務(wù)操作要求 ......................................................................................................16 快捷鍵操作要求 ..................................................................................................................17 故障診斷 ......................................................................................................................................17 需做出如下故障診斷： ......................................................................................................17 故障提示 ..............................................................................................................................17 錯(cuò)誤碼要求 ......