Saga > taS > Innihald

dvb-[taH taS

Jan 20, 2015

focusing targhHom veDDaq noch digital tv pat 'ej chavmoH DIS, latlh SIQpu'bogh qaStaHvIS naQmoH wanI'mey dvb-[taH pat taS cable digigtal tv 'orwI' DuHIvDI' ghaj dibvision.

Hal Receiving signal

digital SIbDoH signal Hal, lutu'lu'bej law' ghun 'ej Hev luch ghap Hal signal LUT VAGH. qaStaHvIS mIw, stream rut, a ghap covert ip stream signal LUT VAGH hdmi pagh audio video. jen laHlIj headend eqiupments bogh suitble pat chup vIvut maH. chaH typical product SIbDoH receiver ird, mpeg-2 sd encoder 'ej mpeg-4 hd encoder.


modulation, QInvam Multiplexing 'ej Scrambling

rut streams pIm ghun wa' rut stream multiple ghun laH multiplex 'elbogh QaptaHvIS cham multiplexing.

rut vutmeH mIw convenient transmisstion. wIv signal scrambling in accordance with DoS signals bang.

'op requirements ghob'e' yon scramble pat wIqelchugh 'oH ghob'e' Qatlh wejDIch ghom unauthorize reception much 'ej scramble signal 'a ghIH ghob'e' wej understandable, ram, nom scrambling Hoch bIquv signas ghob'e' DuH, such as multi-channel chavmoH formats Sar malja' 'ej ghob'e' ngaq neb schemes je ngaj.

qaSpu'DI' [rut in order to chuq tIq transmission loss reduce. ghaHDaq scrambling BERNARDO, modulated vaj rf signal nIS rut streams. mpeg-muDvo' Daqvo' modulation vaj Se' jenwI' ngaDmoH oscillation signal. laH ngeH modulate signal qorDu' Hop terminal users via jan qam latlh joq qach, Sum. according to sd ghap hd channels quantity modulator laH wutlh SoH.

qaStaHvIS taS batlhchaj multiplexing 'ej mIw scrambling QamchoHmo' signal modulation bobcho' qaStaHvIS qam modulator jIblIj Hoch tlhegh.


conditional naw' user 'ej management

pat naw' conditional ngaQHa'moHwI'mey position DuqIppu'chugh multiplex ghun scrambling Subscriber Management pat. pat, chel ghap reduce ghun pagh latlh malja' 'a ghIH embedding laH yISeH provider. by means of management authorization 'ej yIDIl chavmoH laH chav provider.

yIDIl tv taS enhanced, 'ej chut lulajpu'bogh 'a ghIH protection 'orwI' DuHIvDI' HochHom Hung media cas(conditional access system) – Hung. SeH mu' user authorization De' 'emvo' ngaDmoH 'ej highly ngaQ environment rur 'ej fully compatible je dvb simul-Crypt motlh 'ej laH encrypt 'oH.

in order to cater reH-Sach nIS network HaSta jIH digital, tv 'orwI' medium-sized tv network deploy phase pImchugh chuqmey poHmey yIteb ghISDen 'ej pong network expansion phase wherever neH cable, SIbDoH qoj SIp enables dibsys cas. novpu' nejtaH mI' jegh protection mechanisms Qutlh dibsys cas investment Dunmo' 'orwI', such as 3des 'ej aes encryption algorithm, val chaw' & mIch SeH, qIj tetlh management lubaghDI', ngaj poH 'ej stb.

Huj ghogh 'ej malfunction ja' sms(subscriber management system) – Qutlh flexible subscriber management yo'SeH value-added chavmoH such as QIn Huj, DaH nobvam chavmoH. waw' pat modular chut lulajpu'bogh, vaj 'e' customers laH pIm bobcho' interfaces in accordance with chaH lach'eghDI' nIS 'ej wutlh pagh request bobcho' dedicate 'ej interfaces seamless merging je nIv'e' pat chav.

meanwhile, customer mIw'e' automation pat, luch management pat 'ej ghun management pat onto unify platform, laH je integrate maH je 'ut 'elqa' chut lulajpu'bogh pat reliability Qochbe'ghach je naQ je.


hfc internet

QumpIn network (motlh cable tv network) 'e' combination optical fibers coaxial cable je lo'. high-speed backboe DuHIvDI' fiber 'ej DanoHmeH coax 'er'In users rar backbone. qul naQmey docsis cable modems motlh yIlo' qabwIj networks DeSDu' nach bertlham customer premises, 'ej bidirectional paths 'ej internet naw' DuHIvDI'. QaQ transmission broadband network platform laH DuHIvDI' distribute hfc naw' network redundant protection pat, jen Qochbe'ghach je reliability, QaQ expansibility 'ej QaQ network yIqaw index, bidirectional interactive digital tv malja' qeng.


user terminal dvb Hev pat

meb Qav reception ghun chavmoH 'ej puS DuHIvDI' user Qav 'oH jan (HIjmeH yor box). tv chenmoH dvb stb vo' passive Hev analog tv interactive Hev digital tv De' broadcast je. mpeg4 avc hd stb mpeg2 sd stb 'ej DuHIvDI' maH wIv.

pat chepmoH

jen yIqaw

-16 ghun ngaq qaSlaH je yIteb mI' stb users

-'Itlh qaStaHvIS video compression cham unsurpass video laHlIj DeSDu' lowest bitrates 'eS latency 'ej HIj

flexibility Stability 'ej

-modular chut lulajpu'bogh across naQ pat, ngeD installation, leH je upgrade

-chel pagh je 'ut luch tam

-1 + 1 HoS redundant & tuj-swappable supplies jen reliability pat stability je.

jen Adaptability Availability 'ej

-yuQmeyDaq pIm common channels wa' ghantoH modulator

-yIDIl-law'-SoH-HoSchoH modular chut lulajpu'bogh, flexible configurations 'ej chaw' mechanism.

capex ghap opex ghuS

-'eS HoS consumption je jenwI' nom 'ul cost reduce

-'ej bebvo' browser 'ej snmp management Hop jIH je je SeH adopt vaj laH ghaHmo' management poH 'ej expenses (opex) Qap 'orwI' reduce.

-pat simplify je Huch toD jen laHlIj luch qach multiplexing 'ej scrambling.

chay' pat configure

1) IRD

a.fta dvb-s2 rf pagh nIS ngoq mode choH:

ird1218 (8 rf neH, 240 ip 'ej 2asi)

b.encrypt dvb-s2 rf descrambling via cam chaw' 'ej pagh nIS ngoq mode choH:

IRD 1340 (4 RF CI IRD).

ngoq mode wIQaw'laH nIS c.dvb-s2:

enc3580 (mpeg2 mpeg4 avc, mpeg4 avc mpeg2)

2) encoder

a output encrypt ghun Hev SIbDoH receiver pagh lutu'lu'bej ghun ghap LUT VAGH hdmi joq:

hd mpeg4 avc encoder(enc3381) broadcast.

mpeg2 ghap h264 Magnum sd encoder(enc3184) broadcast.

mpeg2 sd encoder(enc3084) broadcast.

3) modulator

vaj rIn 50 ghun bImejnIS, scrambling, modulation multiplexing SoH wutlh chup maH highly integration highly integratedhighly integration highly integration highly integration qam modulator ip. ghaH such as (Sovbe'bogh rur 48 qam) ipq6250 waw'.

vaj qup HoS 50 ghun, common modulator cost 'e', such as rf ghap asi ghap ip qam modulator qam6248 (Sovbe'bogh rur Qo'noS 4qam per unit) 'orwI' chup maH