问：在查一篇中国专利同族时同时查到两篇欧洲专利，文献号分别为EP1364462A和EP20020742444，但在epoque数据库中查不到文献号EP20020742444的文献，请问该文献为何种文献？如何查看该文献全文及优先权等相关信息？
        答：EP20020742444是欧洲专利申请号。在epoque中输入EP20020742444/ap,就能查到其专利公开号EP1364462A。也就是同一篇文献。根据欧洲专利法（art.158 of the epc）有关法条，wo的专利申请指定了欧洲专利局并使用了欧洲专利局官方语言之一（英、法、德）作为专利申请文献语言。wo的专利申请公开文献可作为欧洲专利局专利申请文献的补充。欧洲专利局就不再出版公开的专利文献，只出版授权以后的专利文献。
        具体到EP1364462A，它的公开专利文献就是wo02/067435。而无法查找到欧洲专利申请公开文本。原因在此。
        下面是在WPI中的检索结果。
  ?  ..FI WPI
   Search statement  1 
  ? EP20020742444/ap
   ** SS 1: Results 1 
  Search statement  2 
  ?  ..li
  1/1 - (C) WPI / DERWENT 
  AN  - 2002-584253 [62] 
  AP  - JP20020566846 20020116; WO2002IB00112 20020116;  [Based on WO02067435] ; US20020078955 20020219; KR20020714186 20021022;EP20020742444 20020116; CN20020800373 20020116 
  PR  - EP20010200666 20010223 
  TI  - Turbo decoder system for use in communication devices such as a hard disc drive, a receiver, a network device or similar, comprises parallel decoders, turbo coded bits are dynamically allocated to one of the decoders  
  IW  - TURBO DECODE SYSTEM COMMUNICATE DEVICE HARD DISC DRIVE RECEIVE NETWORK DEVICE SIMILAR COMPRISE PARALLEL DECODE TURBO CODE BIT DYNAMIC ALLOCATE ONE DECODE
  PA  - (PHIG ) KONINK PHILIPS ELECTRONICS NV
      - (DIEL-I) DIELISSEN J T M H 
      - (HUIS-I) HUISKEN J A 
      - (VMEE-I) VAN MEERBERGEN J L 
  PN  - JP2004519886T T 20040702 DW200443 H03M13/29 021pp 
      - WO02067435 A1 20020829 DW200262 H03M13/29 Eng 012pp
      - US2002136332 A1 20020926 DW200265 H03D1/00 000pp
      - KR2003005294 A 20030117 DW200334 H03M13/37 000pp
      - EP1364462 A1 20031126 DW200380 H03M13/29 Eng 000pp
      - CN1457554 A 20031119 DW200412 H03M13/29 000p

回答人：王星亮