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鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺

IP STB
闁辫畝锛�7951鏅�(sh铆)闁擄細2011-06-09 11:57:31

銆�銆�IP STB鏄紙Internet Protocol Set Top Box锛夌殑绨＄ū锛岃鐐虹恫(w菐ng)绲�(lu貌)姗�(j墨)闋傜洅锛屾槸涓�绋皥鐢ㄨ▓(j矛)绠楄ō(sh猫)鍌�锛屽畠鍙互鍏呯暥(d膩ng)闆昏姗�(j墨)鍜屽甯剁恫(w菐ng)绲�(lu貌)涔嬮枔鐨勬帴鍙�銆� 闄や簡灏嶉浕瑕栦俊铏熼��(j矛n)琛岃В纰煎苟鍛堢従(xi脿n)鍏跺収(n猫i)瀹瑰锛孖P 姗�(j墨)闋傜洅閭勫彲浠ユ彁渚涘寘鎷闋婚粸(di菐n)鎾� 锛圴OD锛夈�侀浕瀛愮瘈(ji茅)鐩寚鍗� 锛圗PG锛�銆佹暩(sh霉)瀛楁瑠(qu谩n)闄愮鐞� 锛圖RM锛� 浠ュ強鍚勭ó浜や簰寮忔湇鍕�(w霉)鍜屽濯掗珨鏈嶅嫏(w霉)鍦ㄥ収(n猫i)鐨勫姛鑳�銆�

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銆�銆�鏁�(sh霉)瀛楀寲闆昏绯荤当(t菕ng)鎶�琛�(sh霉)鐧�(f膩)灞曟棩瓒ㄦ垚鐔�锛屽湪閫欏��(g猫)鏁�(sh霉)瀛楀寲鐨勬灦妲�(g貌u)涓�锛屾湁涓�鍊�(g猫)闂�(gu膩n)閸垫�х殑瑷�(sh猫)鍌欙紝灏辨槸缃斁鍦ㄧ祩绔娇鐢ㄨ�呰檿鐨勬(j墨)闋傜洅锛圫et-top box,绨＄ūSTB锛�銆傚緸鏈�鏃╃殑妯℃摤STB锛堥伕鑷哄櫒锛夊埌浠婃棩鐨勬暩(sh霉)瀛楁(j墨)闋傜洅锛圖STB锛�锛孲TB鐨勭櫦(f膩)灞曟鍙插凡鏈変簩鍗佸骞�銆傛ā鎿琒TB鑷充粖浠嶇劧瀛樺湪锛屽畠鍏锋湁灏嶉浕瑕栦俊铏熼��(j矛n)琛屾帴鏀�銆佽(di脿o)璁婂拰璀⒓锛坉e-scrambling锛夌殑鍔熻兘锛岄�欓瑷�(sh猫)鍌欑殑閬庡幓浜屽崄骞翠締鐨勬敼璁婂箙搴﹀緢灏�銆�

銆�銆�缍�(w菐ng)绲�(lu貌)鐨勫嚭鐝�(xi脿n)鏄疭TB甯傚牬鐨勪竴澶ц綁(zhu菐n)鎶橀粸(di菐n)锛屽厛鍑虹従(xi脿n)鐨勬槸璁撴敹瑕栨埗鍙互閫氶亷瀹㈠怀涓殑闆昏渚嗘帴鍙栫恫(w菐ng)闅涚恫(w菐ng)绲�(lu貌)鐨勬挜鎺TB锛圖ial-up set-top box,鍙堢ūTV涓婄恫(w菐ng)姗�(j墨)锛�锛屽浠婄暥(d膩ng)绱呯殑鐢�(ch菐n)鍝佸墖鏄疘P-STB.閫氶亷IP-STB铏曠悊鐨勪覆娴佸収(n猫i)瀹逛竴鑸槸鐢辫(w猫i)鏄熸垨绶氱簻缍�(w菐ng)绲�(lu貌)鍌抽�佸埌瀹朵腑锛屼絾鍜岀窔绾淪TB鎴栬(w猫i)鏄烻TB鐨勪笉鍚屼箣铏�锛屽湪浜嶪P STB闄や簡鍏锋湁鍜屽墠鍏╄�呯浉鍚岀殑鍔熻兘锛屽悓鏅�(sh铆)涔熶娇鐢ㄧ従(xi脿n)瀛樹綆鎴愭湰鐨処P缍�(w菐ng)绲�(lu貌)鏋舵(g貌u)锛屽洜姝�锛孖P-STB鑳芥敮鎸佹洿寤ｆ硾鐨勬噳(y墨ng)鐢ㄥ拰浜や簰寮忕殑鏈嶅嫏(w霉)銆�

銆�銆�IP-STB鐐虹恫(w菐ng)绲�(lu貌)鏈嶅嫏(w霉)渚涜波鍟嗘彁渚涗簡鏂扮殑鏈嶅嫏(w霉)鍟嗘(j墨)锛岃垑渚嬩締瑾�锛岀祩绔敤鎴跺彲浠ュ彧瑕侀�氶亷闆昏鐨勬帴鍙ｅ氨鍙互鏀剁湅瑕栭牷鎴栨敹鑱介煶妯傚収(n猫i)瀹�锛屼篃鍙互鐎忚缍�(w菐ng)绲�(lu貌)銆佺帺绶氫笂娓告埐鍜屾敹鐧�(f膩)闆诲瓙閮典欢锛岄�欎簺閮芥槸鏈嶅嫏(w霉)鍟嗙殑鏂版敹鍏ヤ締婧愶紝鑰岄�欏��(g猫)鎺ュ彛灏辨槸IP-STB.

鍔熻兘

銆�銆�妤�(y猫)鍏�(n猫i)闋�(l菒ng)灏�(d菐o)寤犲晢瑕佹眰鐨処P-STB蹇呴爤鍏锋湁锛�

銆�銆�1.OS鐨勮粺浠�锛�

銆�銆�2.缍�(w菐ng)绲�(lu貌)鑸囪▕铏熺殑鍌宠几鎺ュ彛锛�

銆�銆�3.褰卞儚澹撶府鎶�琛�(sh霉)MPEG-2銆丮PEG-4銆乄MV9;

銆�銆�4.鍙﹀鍓囨槸椤嶅闄勫姞鐨勫姛鑳藉CA鐨勮粺浠舵(j墨)鍒�锛�

銆�銆�5.纭欢鎿�(ku貌)鍏呭姞鍏VD鎴栫‖鐩�锛�

銆�銆�6.涓婄恫(w菐ng)鎺ュ彇鍔熻兘WLAN鑸嘍SL Modem;

銆�銆�7.閰嶅悎缍�(w菐ng)绲�(lu貌)鍔犲�兼湇鍕�(w霉)濡俈oIP;

銆�銆�8.闆讳俊妤�(y猫)鑰呰垏寤ｆ挱闆昏妤�(y猫)鑰呯瓥鐣ュ悎浣滀笅锛岄浕淇℃キ(y猫)鑰呮彁渚涘洖鍌虫(j墨)鍒禗SL Modem,寤ｆ挱闆昏妤�(y猫)鑰呮彁渚涢浕瑕栫瘈(ji茅)鐩�锛屽埄鐢―igital Tuner鎺ユ敹锛屽寘鍚(w猫i)鏄熸垨鍦伴潰鎺ユ敹绛�銆�

銆�銆�闆讳俊妤�(y猫)鑰呭彇寰楃敘(ch菐n)鍝佹槸浠ユ(bi膩o)妗堢偤涓�锛屽洜姝ょ敘(ch菐n)鍝佺殑鍔熻兘鏈冮毃钁楄┎妯�(bi膩o)妗堢殑瑕�(gu墨)鏍艰�屾湁鎵�闄勫姞銆侷P-STB灏囨渻鏁村悎鏇村鐨勫姛鑳�锛屼緥濡傝(di脿o)鍒惰В瑾�(di脿o)鍣ㄣ�佺‖鐩�銆丮P3鍜孌VD鎾斁姗�(j墨)锛岀敋鑷虫槸瀹跺涵缍�(w菐ng)绲�(lu貌)鐨勫姛鑳�锛岃嫢瑕佹挱鏀鹃珮鐣唱(zh矛)瑕栭牷鍏�(n猫i)瀹�锛岄偅灏遍渶瑕佹瘮妯�(bi膩o)婧�(zh菙n)瑕栭牷楂樺嚭4~6鍊嶇殑闋诲锛岄倓寰楅噰鐢ㄦ洿楂樻晥鑳界殑璀⒓鎶�琛�(sh霉)锛屽浠.264鎴朧C-1鍙栦唬浠婃棩鐨凪PEG-2.

銆�銆�姝ゅ锛屽浣曟彁渚涘鏄撳崌绱氱殑IP-STB瑷�(sh猫)鍌�锛屼篃鎴愪簡闁嬬櫦(f膩)鑰呯殑鍏卞悓闇�姹�銆傛湭渚咺P-STB鐨勯枊鐧�(f膩)寰楁豢瓒冲畾鍒跺寲鐨勯渶姹�锛屽悓鏅�(sh铆)閬靛惊鍙潬鍜屾垚鐔熺殑鐢�(ch菐n)妤�(y猫)瑕�(gu墨)鑼�锛屼互鍔犻�熻ō(sh猫)瑷�(j矛)鏅�(sh铆)绋嬩互鍙婇檷浣庨枊鐧�(f膩)鎴愭湰銆備竴浜涘湅闅涚祫绻旂殑鍑洪潰鍗�(xi茅)瑾�(di脿o)鍒跺畾鍏遍�氳(gu墨)鑼�锛屽皪浜嶴TB鐨勫唬娉涙噳(y墨ng)鐢ㄦ湁寰堝ぇ鐨勫公鍔�銆傜洰鍓嶆湁鍏╁��(g猫)浠ｈ〃鎬х殑妯�(bi膩o)婧�(zh菙n)鎺ㄥ嫊绲勭箶锛屼竴鏄瓙娲茬殑ECCA锛圗uropean Cable Communications Association锛夊拰缇庡湅鐐轰富鐨凜ableLabs,鍒嗗垾宸叉帹鍑哄闋�(xi脿ng)STB鐨勫弮鑰冭ō(sh猫)瑷�(j矛)瑕�(gu墨)鑼�銆�

銆�銆�鐒惰��锛岄櫎浜嗙祩绔敤鎴剁殑IP-STB澶栵紝閭勯渶瑕佹湁绯荤当(t菕ng)绔殑瀹屾暣鍌宠几鐠�(hu谩n)澧冨強鐩搁棞(gu膩n)瑷�(sh猫)鍌欐妧琛�(sh霉)锛屼緥濡俈OD鍚庤嚭鐨勬暣鍚堟妧琛�(sh霉)銆丒PG鐨勪己鏈�/绲傜闁撲腑浠嬭粺浠舵敮鎸佸拰DVR寮曟搸鎶�琛�(sh霉)锛屾墠鑳芥彁渚涚灏嶇锛坋nd-to-end锛夌殑IP鎳�(y墨ng)鐢ㄦ湇鍕�(w霉)銆備笉閬庯紝IP-STB鍦ㄦ柊鍔熻兘鍜屾柊鏈嶅嫏(w霉)涓婄殑鎶�琛�(sh霉)鏀硅畩锛屼粛鏄帹鍕曠敘(ch菐n)妤�(y猫)鎸佺簩(x霉)閫�(j矛n)姝ョ殑涓�澶у嫊鍔�銆�

绯荤当(t菕ng)鏋舵(g貌u)

銆�銆�IP STB閫氶亷IP鐨勯�ｇ祼(ji茅)鍗冲彲鍌抽�佷氦浜掑紡銆佸��(g猫)浜哄寲鐨勮闋诲収(n猫i)瀹瑰埌浠婃棩鐨勯浕瑕栦笂闋�锛岀偤浜嗘彁渚涘畨鍏ㄣ�侀珮鍝佽唱(zh矛)鐨勫収(n猫i)瀹�锛屼竴鍊�(g猫)IP STB蹇呴渶瑕佸缓缃竴鍊�(g猫)褰堟�х殑骞宠嚭锛屾墠鑳芥敮鎸佺鍚堢敘(ch菐n)妤�(y猫)妯�(bi膩o)婧�(zh菙n)鐨勮硣鏂欏偝閫佸拰缍�(w菐ng)绲�(lu貌)鍗�(xi茅)璀般��

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銆�銆�鍦↖P STB铏曠悊鍣ㄦ灦妲�(g貌u)鐨勮ō(sh猫)瑷�(j矛)涓�锛岄�氬父閲囩敤DSP鍜屽彟涓�濉婇�氱敤铏曠悊鍣紙General Purpose Processor , GPP锛夌殑闆欐牳鏋舵(g貌u)锛屽叾涓璂SP涓昏鐢ㄤ簬瑕栭牷鍙婇煶瑷婁笂鐨勮纰艰檿鐞�锛岀洰鍓嶅閲囩敤鍙▼搴忓寲鐨凞SP,浠ユ豢瓒冲畾鍒跺寲涓婄殑褰堟�ч渶姹傦紱GPP鍓囩敤渚嗚檿鐞嗗緸鍚勭ó鎺ュ彛渚嗙殑鎺у埗鍙婇亱(y霉n)绠楅渶姹�锛岄�欎簺鎺ュ彛鍖呮嫭纭洡绺界窔鎺ュ彛銆佷互澶恫(w菐ng)鍙奊PIO绛夋湁绶氭帴鍙�锛屼互鍙婄劇绶氭帴鍙ｇ瓑銆�

鍒嗛

銆�銆�鎸夌収鍩轰腑浣跨敤鐨凜PU鑺墖鐨勪笉鍚�锛孖P STB鍙互鍒嗙偤浠ヤ笅涓夌ó锛�

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