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1. æŠèŠ
ããã®èšäºã®å€§ãŸããªæµãã¯ä»¥äžã®ããã«ãªã£ãŠããŸã:
(1) SEPå®åãšã¯
(2) Standardãšã¯
(3) SEPå®åã®çŸå Ž
2. SEPå®åãšã¯
ãæšæºå¿
é ç¹èš± (standard essential patent (SEP)) å®åã«ã€ããŠããæšæºä»æ§ã«åèŽããç¹èš±æš©ã®ååŸããã³ç¶æããšããã§ã¯å®çŸ©ããããšæããŸãã
(1) 仿§ã«åèŽããŠããã£ãŠ?
ãã仿§ã«åèŽããŠããããšã¯ããæšæºä»æ§ããã¯ã¬ãŒã ãã«ããŒããŠããããšããšå®çŸ©ã§ãããšæããŸãã仿§æžã®èšèŒ (åäœ) ããã AãšããåŠçãå®è¡ããåŸãBãšããæ¡ä»¶ãæºãããããšãã«CãšããåŠçãå®è¡ããããšããŸãã
A. åèŽããŠããäŸ
ãã AãšããåŠçãå®è¡ããåŸãBãšããæ¡ä»¶ãæºãããããšãã«CãšããåŠçãå®è¡ãã (仿§ãšã¯ã¬ãŒã ã®åäœãåèŽããŠãã)ã
B. åèŽããŠããªãäŸ
ããAãšããåŠçãå®è¡ããåŸãBãšããæ¡ä»¶ãæºãããããšãã«DãšããåŠçãå®è¡ãã (仿§ãšã¯ã¬ãŒã ã®åäœãåèŽããŠããªã (Dã¯Cãšç°ãªããå
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åŠéšåã«æ±ãããã仿§ã®å Žåãäžèšã®ãããªäŸãæããããŸã:
C. åèŽããŠããäŸ
ã ãåä¿¡æåºŠã¯ -29 dBmããé«æåºŠããšãã仿§ã«å¯ŸããŠã補åã®åä¿¡æåºŠã®ææªå€ã-32 dBm
D. åèŽããŠããªãäŸ
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3. Standardãšã¯
(1) Standard
ãã§ã¯ãæšæºä»æ§ (standard specification) ãšã¯äœãªãã§ãããããããã¯ããããæ©èœãèŠæ±æ¡ä»¶ãæºããææ®µãè²ã
ãªäººãã¡ãå®çŸããããã®ãæäœéæºããã¹ãåãæ±ºãããäœæ³ãå®éçãªå¿
éæ§èœããšããå®çŸ©ãã§ãããšæããŸããæšæºä»æ§ã®å¯ŸçŸ©èªãšããŠãç¬èªä»æ§ (proprietary specification) ãæããããŸããç¬èªä»æ§ã®äŸãšããŠã第2äžä»£ã®æºåž¯é»è©±ã®ä»æ§ã¯ãæ¥æ¬ã§ã¯PDCãšããç¬èªã®ä»æ§ã§ããããæµ·å€ã§ã¯GSMãšããåœéæšæºãæ¡çšããŠããåœãå€ããæµ·å€æ
è¡ã®éãæ¥æ¬ã®æºåž¯é»è©±ã¯æµ·å€ã§äœ¿ããŸããã§ãããPDCã¯åœéæšæºã§ã¯ãããŸããã§ããã
(2) æšæºä»æ§ã®äŸ
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A. USB
ãã³ãã¯ã¿åœ¢ç¶ããã³ã®æ°ãé
眮ã笊å·åæ¹åŒçãæšæºä»æ§ãšããŠå®ããããŠããŸããUSB Type-Cã®ã¬ã»ãã¿ã¯ã«ã³ãã¯ã¿ã¯ãäžèšã®å¯žæ³ãæºããããã«äœããªãããšæ±ºããããŠããŸã (âUSB Type-C Receptacle Interface Dimensions,â Figure 3-1, page 45, Universal Serial Bus Type-C Cable and Connector Specification, Release 2.1, USB 3.0 Promoter Group, May 2021)ãç»åã®åŒµãæ¹ãããããããŸãã..
B. LTEã5G
ã3GPPã«ãããŠã¯ã第4äžä»£ã®ç§»åéä¿¡æ¹åŒãšããŠLTEã仿§åããã第5äžä»£ã®ç§»åéä¿¡æ¹åŒãšããŠã5Gã仿§åãããŠããŸãã5Gã¯ãNR (New Radio) çãšãåŒã°ããŠããŸãã
C. ã€ãŒãµããã
ãIEEE802.3ã«ãããŠã¯ãã€ãŒãµãããã®æšæºä»æ§ãå®ããããŠããŸããã€ãŒãµãããã¯ããã¹ã¯ãããããœã³ã³çã«ããã£ãŠããLANã±ãŒãã«ãä»ããæ
å ±éä¿¡ã«é¢ããã«ãŒã«ãäŸãã°å®ããŠããŸã (ããã«éãããŸãã)ãæç·ã«ããLANæ¥ç¶ã¯ãã ãããã®ã¬ãããã€ãŒãµãããã10ã®ã¬ãããã€ãŒãµãããã«æºæ ããŠããå Žåãã»ãšãã©ã ãšæããŸããçãããå
ãã¡ã€ãã«ãã£ãŠã€ã³ã¿ãŒãããæ¥ç¶ããéããã®ã·ã¹ãã ã¯ãIEEE802.3ahæºæ ã® âGE-PON (gigabit Ethernet passive optical networksâ ãçšããŠããããšãå€ããšæããŸããGE-PONã·ã¹ãã ã§ã¯ãæå€§1 Gbit/sã®éä¿¡ãå¯èœã§ããæè¿ã¯10 Gbit/sçã® â10G-EPONâ (IEEE802.3avæºæ ) ã䜿ããå§ããŠããŸãã
D. ç¡ç·LAN
ã IEEE802.11ã«ãããŠã¯ãç¡ç·LANã®æšæºä»æ§ãå®ããããŠããŸããäŸãã°ãããŒãããœã³ã³ãã¿ãã¬ããPCã䜿ãå Žåãç¡ç·LANã«ãã£ãŠã€ã³ã¿ãŒãããã«æ¥ç¶ããããšããããšæããŸãããã®å Žåãç¡ç·LANã®ä»æ§ã¯ãIEEE802.11ã«ãããŠå®ããããŠããå Žåãã»ãšãã©ã ãšæããŸããäœè«ã§ãããWi-Fiã¯ãIEEE802.11æºæ ã®ç¡ç·LANæ©åšã«ã€ããŠãWi-Fiã¢ã©ã€ã¢ã³ã¹ã«ãããŠçžäºæ¥ç¶æ§ãæ
ä¿ãããŠãããã®ã§ãããã®ãããªæ©åšã¯ã補é è
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(3) æšæºä»æ§çå®ããã»ã¹ (IEEE802.3ã®å Žå)
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B. èŠæ±æ¡ä»¶ (解決ãã¹ã課é¡) ãæ±ºãã
ããã®åŸãããã®æã«ãšãŸã£ãã人ãã¡ãè°è«ããŠãèŠæ±æ¡ä»¶ (解決ãã¹ã課é¡) ãæ±ºããŸããäŸãã°ãæ
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C. äœæ¥éšé
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E. 審æ»
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