·????±????2005-01-14 ×÷???? zhengminhai  


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2004?ê???????ú??×?±???????????·??ú????MP3??·??ú±?·?·????????ê???ú?????à?§??·?????????????MP3??·??ú?ì?ò???????????ú±???????????·??ú?¨PMP?????ú?????°???????§???????????????????°?ú??????????????????????????????PMP?ú?·???????¨???ò???ü?????·????????????×??·????°?????·??·×?????

???????°??PMP????·?°?
????·?°?·????????°±??????ì??????·?°????????ù??SigmaDesigns 851x??????????????·?°????ù??TI DM320 DSP??ARM???í?÷??????·?°????ù??Intel PXA27x??????·?°?????????????·?°??????°???÷?÷·?°???????????·?°??÷????????
1??SigmaDesigns 851x·?°???SigmaDesigns 851x???í?÷?????°????×?????×???????ר?????????????????????è??????200MHz 32?? RISC???í?÷??MPEG???????í?÷?????????????????????è???ü???§?????§?????é???????ê???????ù?è?÷?????????á???????????í???°?÷????WMA V9??DivX V3.11??DivX V4.X??5.X??MPEG-4??MPEG-2??MPEG-1?????????????????????????ó??????MPEG-2??????SigmaDesigns 851x???á??????30fps D1???÷??×????????????ó??

??????????????????±???????????????????????????????·??§????
?±??????·¨??·?????????????RM??RMVB??

2??TI DM320 DSP??ARM???í?÷??????·?°???×???DSP???·??TI?????ù??TI DM320 DSP??PMP????·?°???TI·?°???????DM320DSP??????????±à???????í??ARM???í?÷???????????í?°?á?????§?è±?????????SigmaDesigns·?°????ù??TI·?°??§?????????à??·???·á???????§??WMV??DivX V3.11??DivX V4.X??5.X??MPEG-4??MPEG-2??MPEG-1??????????TI DM320????DSP???????ò??±???????ARM???í?÷????×é???ê????????·?°????ò??????±?????????±???????

???????§?????????à??·á????±à????????????
?±????±???????ARM???í?÷????±??????????????????ó?????§??????????????RM??RMVB
3??Intel PXA27x??????·?°???Intel??????2003?ê?×??????????×?????????PXA27x?????????í?÷??×???????????624MHz??×÷???????????°?????????????????í?÷????????????Linux?òWince??×÷??????PXA27x?í?????????§???????????????????¨???í?????????§??????????????????????MPEG-2???????????????ó???ò??????????PXA27x???í?÷????MPEG-2±à????????????????Intel??????2004?ê??????2700G?à??????????????????PXA270??????????????3D?????????±??PXA27x??????wireless MMX??????SpeedStep???????????í???????????ó?ó??????PXA270?????????í?????????????ó???????????????????¤PMP?ú?·?????????ü??2700G?????????ü??PXA27x·?°?????????????·?°????????ê????????MPEG-2±à???????????ü???ù??PXA27x??PMP?ú?·???ò?à??????·????????????????·???????????????????????é????????

???????§?????°?ù?????????à???????¨???í???????§???????????à????????·á???????§??SD??MS??CF?????§??×??ó400?ò?ó???????·???§?????????????í??????????
?±??????±?????????

???°?????????????ü????·??÷?÷·?°?????PXA255????·?°???Sunplus SPCA536????·?°???AMD Alchemy Au1200????·?°???Freescale i.MX21????·?°??????ù??PXA255??·?°????????????????????????§?????à???????????????±??????·¨?§???ó???????ó??±à????????MPEG-2????Sunplus SPCA536????·?°????????????????§??MPEG-4±à??????JPEG???§???????à??????????????????Freescale i.MX21???????????????úר???è?????????à??±???·á???????????????í??????°?????·¨?????÷????MPEG-4??·?????·¨???íMPEG-2??????AMD Alchemy Au1200????·?°??????????????°????·¨????????FIC????×??????????ù??Alchemy Au1200??PMP?ú?·?????ü????????????SigmaDesigns 851x?à?±?????????ó????????

????PMP???è??????
????PMP?ú?·????·????????ó?????°?????????ó?à??PMP?ú?·?ù???ú???ò?¨???è???????ú?ó????·??à?é???ú?·???ú?ú???ò??·???????±é????????·¨×?????·??ú?·???ò?????????ú?ó??PMP?è?????ì???ü?à??°????ú?ú??+Design House???????????????ù?ú?ú????????·?·???×???????????????????????Design House?ò·???×????????è????????????????±?????????·???×÷?ò????????°?PMP????×??ó??×?????
?ú?????°????PMP·?°??è?????????????????????????????¨www.seuic.com??,????????Intel?????????í?÷PXA255·?°???????SigmaDesigns????·?°????????÷???????????????????????????¨??????·??????????¨www.sstvision.com?????????????°?????è???????ù??SigmaDesigns 8511???í?÷?????ì??PMP????·?°???????×÷??DEMO????TI DM320·?°??????°?÷??????TI??×÷??°é???úIngenient?????¨www.ingenient.com????????

?ú??PMP?è??????????×??°????????????
???? ????
2005?ê???ú??PMP·????????ê????×??????????????????????à??×??????¨??
×????????ó???°?÷??PMP?ú??????????????·????÷????????????????PMP?????????ì??????????
???????ú???§?????????÷?????¨°?????PMP?ú?·??????ARCHOS??SONY?????÷?·?????ú?·?à±??????à?±?ó?????à????±??????¨???????ú?·?????ú?÷?à±????????????à??×???????×???·??????????ì????????????????·??????ú?·?????????????????????á???è???????ú?????¤???è???????ê????????°??????è?????????????????¤?¤????·¨?ú?????è???í?????????????¤???è???????????????ú?·?è?????ò??·?·????????ò????°????????°?????±???ù???????ú?·?????????????·???????ú????PMP?ú?·????×?×??????°?????????±?? ?ú???í?????è??????????????IT?ú?????¨????PMP?????????ù±í????·????÷?????????ù???????????????à???ú?ú?§????????????????????PMP?è????????×÷???????è??·?????·???????????±??÷×?????????????°?????×??ó??×?????±??????÷????PMP?è????????PMP?ú???????????????????°????????????????
???? PMP?è??????????×?
??2003?ê??????PMP???????ú????????±??????ì?¤???????????????±?ò???ú
?????????·?????????????ú?úPMP?è?????????????à?????????è?????????????×???é?????????????ú?úPMP?¨???????í?????????ú??PMP?è?????????°???????????÷??
1?? ???ò???÷
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?????????¨???ú?·????°????é??????????????×????????????????¤?????÷?????????à·?????????????PMP?è???????÷???????????????ü???ò???è???????ò???????????????????????????ò???ò?????????????????×???è???????????¤????????????·??è???????¤????????????±???????×÷??±???
2?? ???????÷
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???????¤×÷?????ó??????????°?????ר???è???????ó??????????????????×??????????°?ú????PMP?è??????·?????????·???????PMP?ú?·?????ú??±ê×???PMP?è???????????ê??°???×????????????????ú?·?è???????????à?è???????????????ú?·?????¨????°????????????????????à???????????????????????????????ó?????§???????ú°?????·?°??????????ú?ú???????????è????????
3?? ·?°????÷
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?°SIGMA DESIGN??·?°???°?????????????PMP?????à?ú?·??°????????ó??3.5???????§?????????????±???????÷?÷?????°????????????·??÷??????????????±é????3000???????????????????????°?ú???????±??????PMP·?°????????°?à?????????????????ú?·???è???????à???ü?à???ù?????à???è????????????????·?°????????ú?·?÷??????INTEL??FREESCALE??SAMSUNG??·?°???????·?°??ò??????2.5???????????§?????ò??????????×÷???????è±?????·????°???????à?????§????·?±??????????ù????????·?°?????????2000??×ó?????????????ü?????????????????ù?????????????ù?ù??????×????????ù????·????à·?°????è???????????à??????·?°??÷????SUNPLU??SIGMATEL????????·?°???°???????1.8??2.5?????§??×÷???????è±???????NAND FLASH?ò?òSD?¨×÷???????è±??????à·?°?????·????°????·???????????·??§??????????????1000?????????????à?ú?·???????ó???ú?ú?????°???à?ú?·?????????÷?????°??°??±+?°?????±???÷???????§?±???ò?§???á???ú?ú???????°?ú?·???????ò???????????à???è??????????????????????
???°?ú???????????à·?°????è???????ù?????????è????????°?????×??????è???????é?ò???????à??????·?°???
4?? ????????
???°PMP?è??????·??????ó?à?????è??????????OEM/ODM???????è????????
?°?????è?????ó?????????????¨?????ú?ú????°ó?????ú?·???ú??????license·???????????OEM/ODM??????????±??í?????????è???????????????????§?á????°????????ú???¨??????×??í?ò????????????×÷?ú?·??°??ú?·???±?????ú?·?ú???????§???ó·????à?è??????????????????·????ú?·?ò°??ú?·?????è???????????????????????????ú?·??????????
????PMP?è??????????×÷???ú?ú????????????±??í????±??????????¤???ì?????????????±·????????????????????????????è???????ò???????????????????????ü?????????§?á???è??·?????????????·?°???????????·????????ò?ü???????????ò???ò???????è?????????????è????????±??¤?à???????????????????ù?????á·?????????????OEM/ODM???????è???????ò???????????§???ú?ú???????????§???????????±?ò?ò??????????
???? PMP?è?????????ú????????????
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?????ù?????????????ú?ú???è???????¨·??????ú?????°?á?????ì???????±???ú?ú?????÷?????è???????ò?????????????±???ú?ú?????è??????????×÷???à?????ò???????ò??
2?? ??·?????????±?????
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?é?è????°?????±????ú?????????ó?????????ú?·?ú?ú???????????ù·??????¤?????ó??×??í????±????????????ó????????????????????????????±????¨????????±????????§×???????·????é??
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3?? ?ú??×???????
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?????í???????è?????????§·????????ó???è???????ò??????????????????????ODM/OEM???¤???±???????§???×?????§?è??×??????????á?????????ú?·?????????ó??????
???? PMP?è????????????????
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1?? ??????????·??è?????ú?????ì
??PMP?ú?·??·??????????è????±à??????·¨?è??????????????????????????
???????à?????????ì?ò?????????ú?????·???ì?????ó???????¨?????à?±?¤???????±???????????ù???????????????ú????????×??????ú??????×??à????
??????±à??????·¨?ì?ò?????ú??Ingenient????????Ittiam×÷??TI?????ò???????è????°é????PMP±à??????·¨??????×??????à???¤×÷?????°?ú???????·????ARCHOS????????iRiver??????????Ingenient??DSP·?°?????Ittiam?ò?÷???????è???ú?¨×???·????????ú?????à???ú???÷?????????????????????ù???ó?à???è?????????ò???ì?ò??·????????±???¤??×????à??·??ú???ì?ò?????????ù?????°?ú?????è???????÷???????ò??ASIC??·?°???×?DSP??·?°???????????????????·?°???DSP?????§???????ü??±ê?????????à?????è????????
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2?? PMP?ú?··????????è???è?ó??????????
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???¨?ú????????FM????×??é??????°é??????±????ò??????×?PMP?ú?·?????ù???????????????????????à???????????è???è??????????·?????DVB-H/DMB??GPS?????????·???????????????????????????????°????????????????????????·????è???????????????ó?????????ù?????ú?·???¤??·????????????????????????????????????????è?????????????????????è?????ù????????°???????
3?? PMP????????·??????è???????????÷?á??
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4?? ??±?????±?????????????
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??????×??ú??PMP?è?????????????????ò??????±?/?§??±??????????????è???????????è???è???????÷?????????à???????è?ó???????????????????à?????????ó????·?°??ó????×÷??±????????????????????è??????????????????????
???? ?ú???è???????é??
?ú??PMP?è?????????è??·?°????÷?????ò??????±?????????????±??ê??PMP
???????????????????°???????ì???ú?·????PMP·?°?????????TI??SIGMA DESIGNS??????AMD??·?°????è?????ì?????????????????¨????×÷???ú??×???????PMP??·????è?????????????????á?????è????????????????SIGMA DESIGNS??AMD???¨????????????????·?????±í???à???????ú?????÷?é±í??

?ó?? ·?°??ù???????÷????
???????? Intel PXA25x/27x
·????¨?? i.MXL/MX1/MX21
TI
?????????? ·????¨??i.MX21
???????? Intel PXA255
?????????¨ SigmaDesigns EM8511s/ EM8561s
???????? TI DM270
?????????? Intel PXA27x
·????¨?? i.MX21
???????? ?è?? SPCA536
?????????????????????????í

. ·????±????2005-01-17 ×÷???? youngzion


×÷?????????à????????·?°????ì????,????2001?êIngenient Technologies??????TI???????????????????????????????÷?à??????????DSP????·?°?(??????±¨??:http://www.ti.com.cn/news/2001/09/0929_01.asp ).2002?ê,Archos????????????Ingenient??·?°???????????????????PMP?ú?·----?à????Jukebox. ????,?ü??°ü?¨SONY??RCA??IRIVER??MOBINOTE??MSI,OLYMPUS?????à?ú?????????§?????ó????Ingenient??·?°??????÷×???PMP?ú?·,????????????·?????.

Ingenient??PMP·?°?????????????:

1)?á???à??×??÷?????????????°??·???????°ü?¨MPEG-4 SP??MPEG-4 ASP??MPEG-1 ??MPEG-2??DivX ??WMV WMA V9 ??Quicktime 6 ??H.264??MPEG-4 AAC-LC ??MP3???????????°???????è??·?°??????????????§??????????×??à?ù??×??ê????.

2) Ingenient??PMP·?°?±à??????????????DM320 PMP ·?°?????MPEG-4 SP??????30fps D1??????(DM270??????30fps VGA ),????·???????????????DM270??DM320?ù??????30fps D1(H.264??????????),·?°??ù?§??USB2.0,HDD,SD,CF,MS??.

3) ?è??·?°????ì??Ingenient?????á??PMP·?°????í?????????á?????????????è?????????§?????????è??·?°??ó??45?ì?????ê?????ù?·????C.E.S???????????????????§?????????ó??????·??±???°????·?????????????·?·???,???????ú?·????·????????á?????ú?·?????????ù?????°???ó??

?à??????:

1) ???????÷??RidgeRun??Ingenient???????? ?????????? ?????????÷?à???????????ù??Linux??DSP????·?°?
http://www.ti.com.cn/news/2001/09/0929_01.asp

2??????????????·??ú?è?????í????????
http://www.eetchina.com/ART_8800340393_617681,617690.HTM.bde4c0bd

3) ?????ú??×????í??:????±??????à??????·??ú
http://www.eetchina.com/ART_8800346150_617681,617690.HTM.b39c91b9

4) ????HDD PMP?????????ú???ì???????????ú??
http://www.eetchina.com/ART_8800344712_617681,617691.HTM.853b8c07

????,Ingenient???á??DMB??STB??·?°?,Ingenient ??DMB-S(Satellite Digital Media Broadcast)·?°?????±?????????±???MBCO(Mobile Broadcasting Corporation)?????ú??SK Telecom ????????×?????????,??????????????±???????DBM???ú?°?ú??????,°ü?¨SHARP??TOSHIBA??MBCO??SAMSUNG???à???????§????????Ingenient??DMB·?°??????÷×????ú?·.


??????????????????Ingenient PMP,DMB??STB??·?°????ê??×???,??????????.
Email: unioncom@sohu.com

??????DM320??????????ARM??