10 Fig re 5 – Data stru ture in inters stem/intercommu ication media... However, a tec nical commite may pro ose the publ cation of a tec nical re ort when it has col ected data of a dif
Trang 2THIS PUBLICATION IS COPYRIGHT PROT CTED
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Trang 4CONTENTS
FOREWORD 4
INTRODUCTION 6
1 Sco e 7
2 Normative ref eren es 7
3 Terms an def i ition 7
4 Generic model 7
4.1 General 7
4.2 Ph sical an logical con ectivity 8
4.2.1 General 8
4.2.2 Inf ormation tran fer media 9
4.2 3 Tran f er ed data stru ture 1
0 4.3 Eas o eration 12 4.4 Sec rity 13 5 Sp cif i models 13 5.1 General 13 5.2 Multimedia data 13 5.3 Data cre tion 14 5.4 Eq ipment stru ture 14 5.5 User interface 15 5.6 Distribution an management 15 5.7 Op n s stem intercon ection with media 15 5.7.1 Sp cif i layers 15 5.7.2 Ap l cation layer 17 5.7.3 Presentation layer 17 5.7.4 Fi e layer 18 5.7.5 L gical storage layer 18 5.7.6 Ph sical storage layer 18 5.7.7 Ph sical layer 18 5.8 Ap l cation sp cif i model n 19 5.9 TC 10 f ramework 19 5.9.1 TC 10 model 19 5.9.2 TC 10 model an u er commu ication 21
5.9.3 Networked TC 10 model 2
5.9.4 En ironmental asp ct of the TC 10 model 2
Bibl ogra h 2
Fig re 1 – Generic model 8
Fig re 2 – Model of ph sical an logical con ectivity 9
Fig re 3 – Inters stem model 9
Fig re 4 – Inter device (intra-s stem) model 10 Fig re 5 – Data stru ture in inters stem/intercommu ication media 1
Fig re 6 – Data stru ture in inters stem/interc an e ble storage media 1
Fig re 7 – Generic model f or u er s stem interf aces 12
Fig re 8 – Generic model f or sec rity 13
Fig re 9 – Dexter model 14
Trang 5Fig re 10 – Sy tems an eq ipment model 15
Fig re 1 – Seven layer ref eren e model an p er f ormats 16
Fig re 12 – Inf ormation interc an e in olvin o en s stems for medium con ersion 17
Fig re 13 – TC 10 model 2
Fig re 14 – TC 10 model an u er commu ication 2
Fig re 15 – Networked TC 10 models 2
Trang 6INTERNATIONAL ELECTROTECHNICAL COMMISSION
1 Th Intern tio al Ele trote h ic l Commis io (IEC) is a worldwid org niz tio for sta d rdiz tio c mprisin
al n tio al ele trote h ic l c mmite s (IEC Natio al Commite s) Th o je t of IEC is to promote
intern tio al c -o eratio o al q e tio s c n ernin sta d rdiz tio in th ele tric l a d ele tro ic f i ld To
this e d a d in a ditio to oth r a tivitie , IEC p bls e Intern tio al Sta d rd , Te h ic l Sp cif i atio s,
Te h ic l Re orts, Pu lcly Av ia le Sp cific tio s (PAS) a d Guid s (h re f ter refere to a “IEC
Pu lc tio (s)”) Th ir pre aratio is e tru te to te h ic l c mmite s; a y IEC Natio al Commite intere te
in th s bje t d alt with ma p rticip te in this pre aratory work Intern tio al g v rnme tal a d n
n-g v rnme tal org niz tio s laisin with th IEC als p rticip te in this pre aratio IEC c la orate clo ely
with th Intern tio al Org niz tio for Sta d rdiz tio (ISO) in a c rd n e with c n itio s d termin d b
a re me t b twe n th two org niz tio s
2) Th formal d cisio s or a re me ts of IEC o te h ic l maters e pre s, a n arly a p s ible, a intern tio al
c n e s s of o inio o th rele a t s bje ts sin e e c te h ic l c mmite h s re re e tatio fom al
intere te IEC Natio al Commite s
3) IEC Pu lc tio s h v th form of re omme d tio s f or intern tio al u e a d are a c pte b IEC Natio al
Commite s in th t s n e Whie al re s n ble eforts are ma e to e s re th t th te h ic l c nte t of IEC
Pu lc tio s is a c rate, IEC c n ot b h ld re p n ible for th wa in whic th y are u e or f or a y
misinterpretatio b a y e d u er
4) In ord r to promote intern tio al u iformity, IEC Natio al Commite s u d rta e to a ply IEC Pu lc tio s
tra s are tly to th ma imum e te t p s ible in th ir n tio al a d re io al p blc tio s An div rg n e
b twe n a y IEC Pu lc tio a d th c r e p n in n tio al or re io al p blc tio s al b cle rly in ic te in
th later
5) IEC its lf d e n t pro id a y ate tatio of c nformity In e e d nt c rtific tio b die pro id c nformity
a s s me t s rvic s a d, in s me are s, a c s to IEC mark of c nformity IEC is n t re p n ible for a y
s rvic s c rie o t b in e e d nt c rtif i atio b die
6) Al u ers s o ld e s re th t th y h v th late t e itio of this p blc tio
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memb rs of its te h ic l c mmite s a d IEC Natio al Commite s for a y p rs n l injury, pro erty d ma e or
oth r d ma e of a y n ture wh ts e er, wh th r dire t or in ire t, or f or c sts (in lu in le al fe s) a d
e p n e arisin o t of th p blc tio , u e of, or rela c u o , this IEC Pu lc tio or a y oth r IEC
Pu lc tio s
8) Ate tio is drawn to th Normativ refere c s cite in this p blc tio Us of th refere c d p blc tio s is
in is e s ble for th c re t a plc tio of this p blc tio
9) Ate tio is drawn to th p s ibi ty th t s me of th eleme ts of this IEC Pu lc tio ma b th s bje t of
p te t rig ts IEC s al n t b h ld re p n ible f or id ntifyin a y or al s c p te t rig ts
The main tas of IEC tec nical commit e s is to pre are International Stan ard However, a
tec nical commite may pro ose the publ cation of a tec nical re ort when it has col ected
data of a diff erent kin from that whic is normal y publ s ed as an International Stan ard, f or
example "state of the art"
IEC TR 619 8, whic is a tec nical re ort, has b en pre ared by IEC tec nical commite 10 :
Au io, vide an multimedia s stems an eq ipment
This secon edition can els an re laces the first edition publ s ed in 19 9 an con titutes a
tec nical revision
This edition in lu es the f ol owin sig if i ant tec nical c an es with resp ct to the previou
edition:
a) the an exes des ribin variou tec nologies have b en deleted b cau e their roles have
ce sed over the p st two decades;
Trang 7b) TC 10 framework are des rib d in more general form an from the viewp int of the
model of data u age an commu ication in lu in the p s ible f uture tec nologies of
TC 10
The text of this tec nical re ort is b sed on the f ol owin doc ments:
En uiry draft Re ort o v tin
Ful information on the votin f or the a proval of this tec nical re ort can b fou d in the
re ort on votin in icated in the a ove ta le
This publcation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2
The commit e has decided that the contents of this publ cation wi remain u c an ed u ti
the sta i ty date in icated on the IEC we site u der "htp:/we store.iec.c " in the data
related to the sp cifi publ cation At this date, the publ cation wi b
Trang 8Multimedia tec nolog covers a wide ran e of tec nical are s an in olves a n mb r of
tec nical elements Most of the tec nical elements for multimedia are now b in develo ed
an updated IEC stan ardization activities on the multimedia tec nolog , theref ore, s ould
b car ied out with enou h dis u sion an clarifi ation on
• p sition an relation hip of the tec nolog to b stan ardized amon the colection of
related tec nologies,
• s o e an framework/g idel ne of the stan ardization,
• a pro riate stan ardization organisation havin the resp n ibi ty,
• s hed le of the stan ardization,
• relation hip b twe n new work items an the existin stan ard on multimedia or sin le
medium tec nolog
These dis u sion s ould b b sed on a pro riate multimedia tec nolog models to cre te a
f ramework for multimedia stan ardization
The f irst edition of this Tec nical Re ort was a s a s ot of these dis u sion in IEC/TC 10
with con ideration of the draft IEC PACT (President's Ad isory Commite on Future
Tec nolog ) re ort whic was a stu y an forese r on f uture tec nolog Af ter that, TC 10
had b en en aged in stan ardization of au io, vide an multimedia eq ipment an s stems
f or over ten ye rs
In 2 10, TC 10 /AGS (Ad isory Group on Strateg ) started to stu y future tec nolog again
b cau e some of ten ye rs of progres of tec nolog had re c ed b yon the IEC PACT
f orese r The stu y was FT-TG (Future Tec nolog Tas F rce) that stu ied the tec nolog
f orecast in the ne r future an res lted to raise Stu y Ses ion in AGS to initiate the new
tec nolog are s in TC 10 At the same time, the ne d to revise IEC TR 619 8 was
recog ized
This new edition of this Tec nical Re ort is b sed on the IEC PACT re ort an redef i es the
TC 10 s stem model to initiate the f uture TC 10 stan ardization work This Tec nical
Re ort is exp cted to contribute as a g idel ne for IEC stan ardization exp rts an National
Commite s interested in multimedia eq ipment an s stems
Trang 9MODEL AND FRAMEWORK FOR STANDARDIZATION
This Tec nical Re ort provides models an f ramework f or the stan ardization of multimedia
tec nolog , b in u dertaken or to b u dertaken by IEC as the res lt of the IEC PACT re ort
Void
3 Terms and definitions
For the purp ses of this doc ment, the fol owin terms an def i ition a ply
The generic model clarif ies AV an IT multimedia tec nolog an its b u daries
Stan ardization is in general req ired to o tain the f ol owin :
• ph sical an logical con ectivity;
• en ironmental saf eg ard
The major purp ses of multimedia stan ardization are:
Trang 10• ph sical an logical con ectivity
Multimedia data interc an e an distribution are b sed on commu ication media an
interc an e ble storage media Protocols, formats, interfaces, an other data stru tures
of the media are req ired to b stan ardized The f eatures of multimedia data, in
p rtic lar, make those stan ard more compl cated than in the case of a sin le medium
• u a i ty an ac es ibi ty
Multimedia s stems contain a n mb r of b sic sin le medium p rts, e c of whic
req ires a pro riate interaction with an u ers or other s stems In order to re l se
f easible an h man- ecog isa le o eration for the multimedia s stems, simpl f ied an
stan ardized u er s stem interfaces are es ential
• saf ety an sec rity
Multimedia eq ipment an s stems f orm or wi f orm a b sic an imp rtant infrastru ture
of national an international activity Some multimedia data are req ired to b hig ly
sec red Some s stems are req ired to b stron ly protected an b sides their o eration
s ould b comforta le an safe f or o erators whose sen e organ ne d to ac es
con ur ently to their cor esp n in media; visible, au ible, an other sen ible media Safe
an sec red en ironments s ould b implemented by b in b sed on some g idelne an
stan ard
Al the s bjects to b stan ardized f or this purp se can b model ed by the relation hip
b twe n an originator an a recipient as s own in Fig re 1
Figure 1 – Ge eric model
Eac multimedia tec nolog f or the relation hip s ould b dis u sed alon with a pro riate
axes def i ed to des rib cor esp n in features of the relation hip
4.2 Phy ic l a d logic l conn ctivity
When con iderin ph sical an logical con ectivity, as presented in Fig re 2, an originator is
p sitioned to b an entity, s stem or device whic provides inf ormation A recipient s ould b
an entity, s stem or device whic receives the inf ormation They are recon ected with e c
other by a relation hip: information tran fer The information tran fer can b car ied out by
dif ferent typ s of inf ormation tran f er media Another asp ct of the information tran f er is a
stru ture of data to b tran fer ed by the medium
IEC
Relatio ship
Trang 11Fig re 2 – Model of ph sic l a d logic l conn ctivity
4.2.2 Inf ormation tra sf er me ia
4.2.2.1 Inters stem model
The ph sical media f or inf ormation tran f er b twe n s stems are clas ified into:
• Bro d astin media
Bro d astin media s p ort simultane u information tran f er to a n mb r of recipients
Examples of the wireles bro d astin media are BS, CS an ter estrial
• Intercommu ication media
Intercommu ication media s p ort inf ormation tran f er b twe n two or more s stems at a
time Examples of intercommu ication media are Internet, WAN, LAN an an are
network
• Interc an e ble storage media
Interc an e ble storage media (ISM), e.g o tical dis s f aci tate data tran fer by alowin
the ph sical movement of the ISM from s stem to s stem L rge amou ts of data tran f er
can inexp n ively an q ic ly b re l sed by u in interc an e ble storage media
Flas memory, hard dis drive are clas if ied as ISM
They as ociate o en s stems as des rib d in Fig re 3
Figure 3 – Inters stem model
Trang 124.2.2.2 Inter-de ic (intra-s stem) model
Mec anisms f or information interc an e b twe n devices or s bs stems within a larger
s stem are ref er ed to as interf aces Examples of the interfaces are:
• computer an p ripheral interf ace s c as USB an Wi-Fi direct;
• monitor display interface s c as DVI DisplayPort, HDMI
• con umer eq ipment interf ace employed, for in tan e, IR, Wi-Fi, Blueto th
1
, an NFC
Devices or s bs stems interact as s own in Fig re 4
Figure 4 – Inter-d vic (intra-s stem) mod l
4.2.2.3 Boundary model
devices/s bs stems Examples are:
• IR commu ication;
• Internet
4.2.3 Tra sf er e data structure
4.2.3.1 Data structure in inters stem/intercommunic tion me ia
Tran f er ed data stru tures employed in inters stem/intercommu ication en ironment may b
re resented by the OSI layered model whic was stan ardized by ISO/IEC 74 8-1 The data
stru ture con ists of seven layered protocols, semantic an s ntactic b haviors of whic are
def i ed an tre ted in cor esp n in p er to-p er entities within commu icatin o en
s stems
The to layer entities f or a pl cation protocols provide services to their a pl cation itself within
an o en s stem Ap l cation data whic are outside the s o e of the OSI model can b
con idered from the fol owin p ints of view:
• Content
A major f eature of multimedia s stems is that multiple typ s of content data are s p orted
by the s stems
• Stru ture
Multiple typ s of content data are integrated into a stru ture whic is a pro riate for the
a plcation An in tan e of multimedia data stru ture model n is s own in 5.1
_ _
1
Blu to th is th tra e n me of Blu to th SIG
This informatio is giv n for th c n e ie c of u ers of this d c me t a d d e n t c n titute a e d rs me t
b IEC of th pro u t n me Eq iv le tpro u ts ma b u e if th y c n b s own to le d to th s me re ults
Trang 13• Cre tion
The stru tured a pl cation data are sometimes cre ted ste by ste The data f rom e c
ste can b tran f er ed b twe n cor espon in a pl cation In tan es of model n of
multimedia data cre tion are s own in 5.2
Fig re 5 s ows the data stru ture in inters stem/intercommu ication media
Fig re 5 – Data structure in inters stem/intercommu ic tion me ia
4.2.3.2 Data structure in inters stem/interc a g able stora e me ia
Tran f er ed data stru ture employed in an inters stem/interc an e ble storage media (ISM)
en ironment can b re resented simi arly to the data in inters stem/intercommu ication ISM
are ph sicaly moved b twe n s stems to tran f er the data on the storage media To al ow
o en data tran fer, the data formats an prof iles on the media s ould b stan ardized as
relation hips b twe n s stems L gical stru tures s c as volume an f ile are defi ed on
ph sical stru tures s c as trac an sector to con g re a layered stru ture
Ap l cation data on f ile stru ture s ould b tre ted in the same man er as those on
inters stem/elecommu ication media, se Fig re 6
Figure 6 – Data structure in inters stem/interc a ge ble stora e me ia
Trang 14Some detai ed dis u sion of data stru ture model n f or o en s stem intercon ection with
media are s own in 5.6
4.2.3.3 Data structure in inter-de ic model
Data stru ture in inter device model is also modeled in a layered man er As f ar as a display
monitor interf ace is con erned, for example, the typ an dimen ion of the con ector an
ca le s ould b con idered in its ph sical layer
4.3 Ea y operation
Multimedia u er s stem interfaces are des rib d as a relation hip b twe n a multimedia
s stem an an o erator Un er this relation hip, a s stem can provide information an
services to an o erator an vice versa
The relation hip can b implemented with several inf ormation typ s cor esp ndin to sen in
• primitive action/gesture
Con iderin those asp cts of multimedia u er s stem interf aces, they can b des rib d by