6 1 2 3 4 5 6 7 8 9 10 11 12 13 4/12 4/19 4/26 5/10 5/17 5/24 5/31 6/7 6/14 6/21 6/28 7/5 7/12 (1) (2) (1) (2) VoIP YahooBB TV YahooBBTV 3Mbps RealTime-NTT BB VoIP VoD YahooBBTV KDDI TV Sharecast VoIP H.323/SIP 1
2001 2004 VoIP ( PSTN(Public Switched Telephone Network) VoIP(Voice over Internet Protocol) VoIP(Voice Over IP) Yahoo BB Phone ADSL IP IP 2
IP IP : http://www.itmedia.co.jp/broadband/0305/28/l_sougo.gif VoIP IP() 050 050 PHS IP () 110 119 050 11717705700120 VoIP ITU-T H.323 H.323 LAN " E.164 ITU-T E1 15 03-5333-0851 E.164 81-3-5333-0851 81 03 03 5333-0851 3
H.323 International Telecommunications Union (ITU) TCP/IP 4 H.323 (E.164 IPaddr) PSTNIP MCU Multipoint Control Unit Endpoints IP RTP/RTCP Gatekeepers endpoints zone (band width) IP zone Gateways Gateway zone Switched circuit Network 4
H.323 H.323(H.225) H.245 TCP H.225 Audio/Video* Q.931 RAS RTP+RTCP IP (PHY) UDP *) Audio: G.711, G.722, G728, G.723, G.729 Video: H261, H263 H.225 RAS Registration, Admission, and Status = 224.0.1.41 port 1718 Q.931 = TCP port 1720 IP + TCP H.323 URL h323:@hostname h323:username@h323-nodename h323:username@h323-nodename:portnum H.323(H.245) H.245 /codec // RTP UDP 5
H.323 () SIP H.225 RAS *) PSTN GK H.323 Gatekeeper H.245 GK codec codec GK H.225 RAS H.323 VoIP SIP A H.245 RTP H.225 IP B SIP (Session Initiation Protocol) SDP SIP SIP DNS, LDAP 6
SIP-URL SIP SIP SIP-URL sip:<username>:<passwd> / <E.164>@<sip server hostname/ipaddr> *) E.164 ;user=phone SIP or <CRLF> SDP INVITE sip:taro@somewhere.com SIP/2.0 From : Hanako <sip:hanako@somewhere.com> To : Taro <sip:taro@somewhere.com> Call-ID : 123456789@hoge.somewhere.com Subject : test Content-Type : application/sdp SIP/2.0 100 Trying From : Hanako <sip:hanako@somewhere.com> To : Taro <sip:taro@somewhere.com> Call-ID : 123456789@hoge.somewhere.com SDP(Session Description Protocol) SDP () () ( ) SDP SDP 1 v=0 2 o=taro 1234567890 1234567890 IN IP4 hoge.somewhere.com 3 c=in IP4 hoge.somewhere.com 4 m=audio 49170 RTP/AVP 0 5 a=rtpmap : 0 PCMU/8000 6 m=video 51372 RTP/AVP 31 7 a=rtpmap : 31 H261/90000 1 SDP 0 2 taro SDP1234567890 1234567890 IP4 hoge.somewhere.com 3 IP4 hoge.somewhere.com 4 UDP49170 RTP/AVP 0 5 0 PCM_u-law/8KHz 6 UDP51372 RTP/AVP 31 7 31 H.261/9KHz 7
SIP INVITE sip: hanako@aaa.com ACK 200 OK SIP hanako? hanako-pc *)hanako INVITE sip: hanako@hanako-pc 200 ACK OK SIP SIP Moved Temporarily hanako@aaa.com hanako-pc IP 16 4 1 8
BBTV 4thMEDIA (Plala.TV on 4thMEDIA, @nifty on 4thMEDIA) KDDITV ( 100) IP BBTV http://www.bbcable.tv/ ( 100%) 24 ADSL(Yahoo BB!) MPEG2 IC IP IPv4 PIM-SM Plala.TV on 4thMEDIA http://plala.tv/monitor/ KDDITV http://bb.kddi.jp/ftthservice/about/index.html Ch.220 Ch.275 Ch.284 Ch.722( Ch.250 Ch.277 Ch.300( Ch.725 Ch.251( Ch.279 Ch.303( Ch.741 Ch.255( Ch.280 Ch.321 Ch.747( Ch.274( Ch.281 Ch.720 IP CS STB OKI Streaming Player MPEG4 ASP Level5 1.5Mbps 2Mbps ADSL MPEG2 4Mbps CAS KDDI 1Gbps 70Mbps VDSL() HomeGW() NEC ( ) KDDITV 6615 (TV) IP+QoS MPEG2 4Mbps :CDN STB Cisco12400 Catalyst 6500 http://www.cisco.com/japanese/warp/public/3/jp/solution/casestudy/pdf/kddi_hikariplus.pdf http://bb.watch.impress.co.jp/cda/parts/image for link/5488-2875-6-1.html 9
Stream Navi () http://www.streamnavi.com/ BROBA http://www.broba.goo.ne.jp/ 3151.5Mbps 10503Mbps WMT DRM (Digital Rights Management) can-d.com http://www.can-d.com/ PONY CANYON MQ Open MGX MAGICLIP OpenMGX SONY 2002 DRM(Digital Rights Management) 10
MORRICH http://www.sonymusic.co.jp/morrich/default.html SONY MUSIC MORRICH PLAYER Internet Explorer, Flash, Windows Media Player PC One Day Vision http://www.onedayvision.com/ One Day Vision Windows Media Player 9 Windows Media Player 9 (FAQ) 48 HOLLYWOOD PARTY http://www.hollywoodparty.net/ MotionPro NTT-C Archstar MUSIC WMT + ATRAC3 ATRAC3 SONY WMTDRM https://bb.skyperfectbb.jp/ BB WindowsMedia 11
Victor Sound Cafe http://www.sound-cafe.jp/ 600kbps, 1Mbps WMT Web BB http://animebb.jp/animebb/ music.co.jp() NTT Foobio NTT Real Video 16 BB http://bb.goo.ne.jp/special/anime-bb/ itunes Music Store WMT goo ID goo Apple Computer 1 99 itunes, ipod FairPlay 3Mac ipod CD-R/RW Mac Deauthorize, Mac Authorize itunes Music Site 12
Excite Music Store(http://www.excit e.co.jp/music/store/) WMT Mora(http://mora.jp/)( ) OpenMG JAL TV http://www.jal.co.jp/broadband/ JAL Live http://www.campusbb.net/ NTT-EI() WMT http://www.campusbb.net/channel/video/10129_30 0_wmt.html Peercast MP3, OGG Vorbis, WMA, WMV, NSV P2P (Shoutcast etc.) http://www.peercast.org/jp/ 13
Sharecast P2P, KDDI () DRM DRM(WMT) WMT DRM / () http://www.microsoft.com/japan/windows/windowsmedia/wm7/drm/architecture.aspx 14
IP IP MPEG2,MPEG42Mbps 4Mbps QoS CDN STB TV BS MTV, TV CNBC 6000 (PC) CD 300/ 300kbps 3Mbps 1000 WMT Real(ex. BB) DRM (Windows ) ATRAC+OpenMG 15