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ڵλãֻѧУ
ֻоƬ̽:Ӧ
2005-09-30 12:55ۺϢߣ


ڳĻϿʵתijŮİųҵǼľưɣǧ֮Ǹ˷Ͳԭ׳һֻ֮ʵֻ֣˴Ϊɹʿı־̳ΪֱرͨŹߣ3GٽĽ죬Ρܡ֡ϷΪӦʹǽĮͨŹܡ

ȻֻǰIJֹͣ˽ĵоƬ֮ڵԵ֮صĵλֻʮ˰ȫССǿǿ"о"IJݱ䡣ĽüоƬĹԽԽǿԽԽСֱӵδֻܡͨҵ쵼-ͨ˾ʼ˺Ͷ³oŸʿ˵"ƶֻ𽥳Ϊһָ߶ȼɡɻȱ豸ûͨźͼ㼼ںһ𡣶ڴ˵ֻΪΨһҪĵԣӶȡ̨ʽԺͱʼDZԡ" Ҳû˻ỳֻճеļֵȿɵϵԽշʵʱƶ칫Ҳ֣ʱտƵӣiPod飻ͬʱøָϷУ GPSȫλӵͼȵȸ߶ӦҲܡֻΪһǿϢնˣһƱػδϵӲƷķչ߸Եĸ

ʣоƬݽֻӦչγѭ켣󣬶ýӦоƬзΪ3GֻҵʤоƬ̸ͨǵоƬ̶صĶý弯ɲƷƳTIзOMAPΪһͨѶƽ̨ӢضڽPCϵľȫֲֻϣֻоƬ䳧̸ͨڶǰľǰհԵLaunchpadΪҵṩȽ3Gҵйܣ伯ڹǿĵƽоƬСʹüС豸ҲܹйǿӦã߾ȵĶλƵ顢ýƵȫʶϷCDʵ֡Ͷš

ʵ߶ֻֻ֪оƬֻ֧֣ܵ˲ڹֻʱϸĶѯֻáֻ廨ţƷг廨ţΪı߶׾ͽֻļ򵥹ܿ󣬴Ӷת߶ֻӦùܵע߶ֻоƬ֪ʶĻҲͲäĿ۵ȷӦܵ󵼣⹺ֵIJƷǾһƳֻ E159()ΪΪڹֻʱ˼·

E159ǽCDMAгƵĻ֮һɫµĸͨMSM6500оƬ֧ǿĶý幦ܡͨCDMAоƬϴṩоƬڰCDMAΪͨ߻ļżΪҪĽɫ˸ó̵ṩоƬֵø١MSM6500оƬýгɫ֧֣ܹ߻дƵƵýʽȷûƶ飬磺ýƵ㲥VODýƵ㲥AODƶۿʵʱݣֱֳƵϢزƾйͨCDMA 1XݴʸߵƣԴﵽ5060kbpsʵ߹ۿӣ͵ӰVOD/AODƵ㲥ķһжڸоƬָ֧߷ֱVGAʾƵܣӶֻתɸý岥ɻõʾӾ顣

߹ۿý֮⣬ֻ"λ֮" ͨGPSǶλϵͳṩܵĵӦáͨƶӪ̵CDMAȡƶնûλϢ (γ) ڵӵͼƽ̨֧£ΪûṩӦһֵҵճʹõĴ󲿷ϢλôijֹϵֻӦſͨ"Ӧ"ҵеʳ/ʱװСݣɫ/װ绰ͼͨƵӵ·δӶ˷·;ʱ䣻һЩԶλĵ̳ͣ˿ڳܵijṩ߾ȵ·ʾȵһӦȫӢAnalysis ResearchһݱԤ⣬ƶλ÷뽫200220Ԫ2006185ԪԤƵ2006꣬ȫֻûͬʱΪƶλ÷ûּDZ3Gƶֵҵ񣬸ͨðLaunchpad Ӧ׼gpsOneλΪֻеĵӦṩ˸߾ȷȲеεĵĵͼλܡͨնûԣλ෱ࡣΪһλµƣҵӦѾʾǿ˽⣬ϺмýӦ˴˹ܶԱʵʱ

ΪͨŽʿԼԸͨľ塣ͨѾڽ8·ƳMSM75000оƬƬƽ̨ںƽ̨ͨνںƽ̨ΪӦֳ豸"ں"ġоƬʵֱЯʽ񡢸߱֡3DϷԼý幦--ڼɵͨն֮УԳ豸ıԡںƽ̨Ϊӱ"Զ"ն˸УͨŲƷתΪܻӭߵӲƷMSM7500ṩֵ֧ںնˣܹµ3DϷѷ͸ߴ800صļʱƬƵʼ硢ֻʽȫλϵͳGPS׷١MP3֡ҵûͨPCͬļͱ༭Լ߶ȵİȫԵȸ߷ֱܣ߹Чʣһߵİ칫ҡ

ֻĿٷչıǵճʽ,Ҳ̵Ӱй˵ΪϰߡҲ3Gÿһ˶ԣһϵķԾҲʹһ߹㷺ϵΪȻҪΪһߣֻоƬĹעཫΪճijʶ֮һˡ

ĵַ:http://www.cnonline.org/2005/article/7477.html
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