a ppl. n o :10831281 title of th e invention :rendering ...strength of patent righ t a grad e (top...

A ppl. N o :10831281

Title of Th e Invention :rend e ring d igital content in a content protection system

accord ing to a plurality of ch aine d ...

Evaluation Date 2019-04-07

Patent N o | A ppl. N o 07568096 | 10831281

F ield O f A rt e le ctric/ele ctro nic/IT

Title of Th e Inventionre nd e ring d igital co nte nt in a co nte nt pro te ctio n syste m acco rd ing

to a plurality o f ch aine d ...

R igh t h old e r | A pplicant M IC R O S O F T C O R P O R A T IO N , W A S H IN G T O N | M icro so ft C o rpo ratio n

F iling Date | Issue Date | Expiration Date 2004-04-23 | 2009-07-28 |

Patent Sum m ary

A re q ue st to re nd e r encrypte d co nte nt is re ce ive d and a ch ain o f lice nse s co rre spo nd ing to th e co nte nt is lo cate d . Th e

ch ain includ e s a le af lice nse link e d to th e co nte nt at one end o f th e ch ain, a ro o t lice nse at th e o th e r end o f th e ch ain,

and any inte rm e d iate lice nse s th e re b e tw e e n. Th e le af lice nse and any inte rm e d iate lice nse s in th e ch ain are e ach

bo und to th e ad jo ining lice nse in th e ch ain to w ard th e ro o t lice nse, and th e ro o t lice nse is bo und to an o w ne r o f a

private k e y (PR-U ). F o r e ach lice nse in th e ch ain, th e lice nse is ve rifie d and it is co nfirm e d th at th e lice nse allo w s th e

co nte nt to be re nd e re d . A d e cryptio n k e y is o btaine d fro m th e le af lice nse base d on applicatio n o f (PR-U ) to th e ro o t

lice nse, th e o btaine d k e y is applie d to d e crypt th e encrypte d co nte nt, and th e d e crypte d co nte nt is re nd e re d .

● A bstract

Evaluation R e sult(100%)Evaluation R e sult(100%)Evaluation R e sult(100%)Evaluation R e sult(100%)Evaluation R e sult(100%) R igh ts(35%) Tech nology(35%) U sability(30%)

A A A BBB A A

O verall Evaluation A nalysis

P ate nt N o. 07568096, "R end e ring d igital co nte nt in a co nte nt pro te ctio n syste m acco rd ing to a plurality o f ch aine d

d igital lice nse s" w as evaluate d as A A grad e (top 4.3%) in th e art. Th e d e taile d evaluatio n ite m s w e re evaluate d as

stre ngth o f pate nt righ t A grad e (top 19.9%), quality o f te ch nolo gy BBB grad e (top 35.4%), and usab ility A A grad e

(to p 4.2%).

● G e ne ral R evie w

Evaluation R e sult 4%

R igh ts 20%

Tech nology 35%

U sab ility 4%

※ A n evaluation grad e is grante d accord ing to a percentage provid e d in th e above grad e d istribution table w ith re spect to all

currently grante d patents in th e sam e field of art.

U S 07568096 Page | 1 of 8

R igh ts T h e lik elih o o d of th e patent to be evaluate d m aintaining its exclusive status in a patent d ispute w ith a th ird party.

* Evaluatio n elem e nts o th e r th an th e above 5 evaluatio n elem e nts h ave an influe nce on th e righ ts.

Stre ngth o f P ate nt R igh ts is evaluate d as grad e "A ". Th e num be r o f ind e pe nd e nt claim s is 3, w h ich is

e q ual to o r lo w e r th an th e ave rage, and th e ind e pe nd e nt claim s co nsist o f 293w o rd s, w h ich is gre ate r

th an th e ave rage. Th e claim s co nsist o f a plurality o f claim s.

AEvaluation Elem ents Target Patent A ve rage

R e e xam inatio n 0 1.00

N um be r o f IP R, P G R th at h as be co m e final and co nclusive

0 1.41

R e issue 0 1.00

N um be r o f ind e pe nd e nt claim s

3 3.21

L ength o f ind e pe nd e nt claim s

293 103.98

Reexam ination

Length of�

independent claim s

N um ber of independent claim s Reissue

N um ber of IPR,G RB�

th at h as becom e �

final and conclusive

● R igh ts Evaluation

Tech nology T h e e xte nt to w h ich th e pate nt to be evaluate d co incid e s w ith and le ad s te ch nical tre nd s.

* Evaluatio n elem e nts o th e r th an th e above 5 evaluatio n elem e nts h ave an influe nce on th e te ch nolo gy.

Q uality o f te ch nolo gy is evaluate d as grad e "BBB". Pate nts fo r w h ich applicatio ns w e re file d at m o st5450d ay(s) afte r th e filing d ate o f th e pate nt to be evaluate d are includ e d , and 21 pate nts cite s th e pate ntto be evaluate d . Th e C P C m ain gro up in w h ich th e pate nt is includ e d sh o w s a d e cre ase in U .S. pate ntsco m pare d w ith o th e r gro ups. Th e cite d re fe re nce s includ e a pape r, sh o w ing co incid e nce w ith te ch nicaltre nd s. R e fe re nce s cite d by pate nts to w h ich re fe re nce is m ad e includ e pape rs and fo re ign pate nts. Th e reis 1 continuatio n applicatio n. It is a pate nt th at w as jo intly invente d by 3 invento rs.

BBBEvaluation Elem ents Target Patent A ve rage

N um be r o f d raw ings 0 11.18

Incre ase/d e cre ase rate o f U S pate nts und e r

C P C level-0.9 -0.59

To tal num be r o f fo rw ard citatio ns

21 12.10

N um be r o f pape rs in fo rw ard citatio ns

7,679 884.89

N um be r o f co ntinuatio n applicatio ns

1 2.96

N um ber of draw ings

N um ber of�

continuation�

applications

N um ber of papers in forw ard citations Total num ber of forw ard citations

Increase/decrease�

rate of U S patents �

under CPC level

● Tech nology Evaluation

U S 07568096 Page | 2 of 8

U sability

A AEvaluation Elem ents Target Patent A ve rage

N um be r o f R C E 0 1.21

N um be r o f co untrie s w ith fo re ign fam ily

pate nts15 2.80

N um be r o f IP R, P G R th at is pend ing

0 1.29

N um be r o f IP C 1 1.57

A ssigne e ch ange 1 1.26

Th e extent to w h ich th e patent to be evaluate d w ill be use d in busine ss and th e pro bability of th e patent

be ing use d in busine ss.

* Evaluatio n elem e nts o th e r th an th e above 5 evaluatio n elem e nts h ave an influe nce on th e utiliz atio n.

U sab ility is evaluate d as grad e "A A ". A nnuity fe e s up to th e ye ar 10 h ave be e n paid . Since fo re ign

applicatio ns relate d to th e pate nt to be evaluate d w e re file d in 15co untrie s, th e applicab ility in a busine ss

is h igh . 1 IP C is includ e d . Th e righ t h o ld e r h as ch ange d 1 tim e s.

● U tiliz ation Evaluation

N um ber of RCE

A ssignee ch ange

N um ber of IPC N um ber of IPR, PG R th at is pending

N um ber of countries�

w ith foreign fam ily�

w ith foreign fam ily�

patents

W IPO 's analysis of percentile rank ratio by classification of tech nology

Evaluatio n Ind e xC ate go ry(ele ctric/ele ctro nic/IT)

[1,529,696]

Divisio n(ele ctric/ele ctro nic/IT)

[1,467,894]

S e ctio n(d igital co m m unicatio n)

[93,421]

To tal (100) 4.3% 4.2% 4.9%

Stre ngth o f P ate nt R igh t (35) 19.9% 19.7% 21.3%

Q uality o f Te ch nolo gy (35) 35.4% 35.1% 39.5%

U sab ility (30) 4.2% 4.2% 5.3%

* A ratio o f ele ctric/ele ctro nic/ITte ch no lo gy classificatio n o f co m pre h e nsive evaluatio n d e no te s th e to p 4.3%

U S 07568096 Page | 3 of 8

M ain patent inform ation

R e pre se ntative F igure R e pre se ntative C laim

1. A co m pute r im plem e nte d m e th o d fo r re nd e ring

e ncrypte d d igital co nte nt on a co m puting d evice in

acco rd ance w ith a ch ain o f lice nse s, e ach lice nse in th e

ch ain o f lice nse s h aving an asso ciate d se t o f rule s th at

m ust be satisfie d to allo w th e encrypte d d igital co nte nt to

be re nd e re d , th e m e th o d co m prising: re ce iving a re q ue st

to re nd e r th e co nte nt, th e co nte nt h aving a link id e ntifie r

id e ntifying a first lice nse asso ciate d w ith th e co nte nt;

lo cating th e ch ain o f lice nse s co rre spo nd ing to th e

co nte nt, th e ch ain includ ing th e first lice nse link e d to th e

co nte nt at one end o f th e ch ain, a ro o t lice nse at th e o th e r

e nd o f th e ch ain no t h aving a link id e ntifie r, and any

inte rm e d iate lice nse s th e re b e tw e e n, th e first lice nse and

any inte rm e d iate lice nse s in th e ch ain e ach co m prising a

link id e ntifie r id e ntifying th e ad jo ining lice nse in th e ch ain

to w ard th e ro o t lice nse and th e ro o t lice nse bo und to an

o w ne r o f a private k e y (PR-U ), w h e re in lo cating th e ch ain

o f lice nse s co m prise s: id e ntifying th e link id e ntifie r

asso ciate d w ith th e co nte nt; find ing th e first lice nse on th e

co m puting d evice asso ciate d w ith th e id e ntifie d link

id e ntifie r; ve rifying th e fo und first lice nse and co nfirm ing

th at a rule asso ciate d w ith th e first lice nse pe rm its th e

re nd e ring o f th e co nte nt; id e ntifying th at th e fo und first

lice nse h as an uplink id e ntifie r; and re pe ate d ly: find ing an

(x)th lice nse on th e co m puting d evice h aving th e uplink

co nte nt id e ntifie r o f th e fo und (x1)th lice nse; ve rifying th e

fo und (x)th lice nse and co nfirm ing th at th e fo und (x)th

lice nse pe rm its th e re nd e ring o f th e co nte nt; and

d e te rm ining w h e th e r th e fo und (x)th lice nse h as an uplink

id e ntifie r; until it is d e te rm ine d th at th e fo und (x)th lice nse

d o e s no t h ave an uplink id e ntifie r and is th e re fo re th e ro o t

lice nse; and upo n d e te rm ining e ach lice nse in th e ch ain o f

lice nse s is ve rifie d and th e rule s o f e ach lice nse in th e

ch ain are satisfie d , o btaining a crypto graph ic k e y fo r

d e crypting th e co nte nt fro m th e first lice nse, com prising:

o btaining fro m th e ro o t lice nse a link k e y K L(x1) of th e

ad jo ining (x1)th lice nse to w ard th e first lice nse encrypte d

acco rd ing to a public k e y P U -U to re sult in P U -U (K L(x1));

applying a private k e y P R-U co rre spo nd ing to P U -U to

P U -U (K L(x1)) to reve al K L(x1); fo r e ach fo und lice nse in th e

ch ain be tw e e n th e first lice nse and th e ro o t lice nse, and in

o rd e r fro m th e ro o t lice nse to th e first lice nse: o btaining

fro m th e (x)th lice nse a link k e y o f th e ad jo ining (x1)th

lice nse to w ard th e first lice nse K L(x1) encrypte d acco rd ing

to a link k e y o f th e (x)th lice nse K L x to re sult in K L x(K L(x1));

and applying K L x to K L x(K L(x1)) to reve al K L(x1), K L x be ing

reve ale d in co nne ctio n w ith th e (x+1)th lice nse in th e

ch ain; until K L 1 is reve ale d; o btaining fro m th e first

lice nse a co nte nt k e y K D fo r d e crypting th e co nte nt

e ncrypte d acco rd ing to K L 1 to re sult in K L 1 (K D); and

applying K L 1 to K L 1 (K D) to reve al K D; and applying K D

to th e encrypte d co nte nt to d e crypt sam e.

O w ne rsh ip C h ange Info rm atio n

U S 07568096 Page | 4 of 8

N O O w ne r Date of ch ange

1 M IC R O SO F T C O R P O R A TIO N , W A SH IN G TO N 2004.04.22

R elate d L itigatio n

N O C ontent Date

F am ily Info rm atio n

N O F am ily patent num be r F iling d ate C ountry

1 A T463799T 2005.04.08 A ustria

2 TW I366370B 2005.04.08 Taiw an, Province of C h ina

3 EP1594034A 2 2005.04.08 European Patent O ffice (EPO )

4 DE602005020385D1 2005.04.08 G e rm any

5 A U 2005201572A 1 2005.04.14 A ustralia

6 Z A 200503017A 2005.04.14 South A frica

7 BR P I0501325A 2005.04.18 Braz il

8 M Y 141648A 2005.04.18 M alaysia

9 C A 2504677A 1 2005.04.21 C anad a

10 R U 2378772C2 2005.04.21 Russian F e d e ration

11 R U 2005112059A 2005.04.21 Russian F e d e ration

12 M X P A 05004270A 2005.04.21 M exico

13 C N 100588152C 2005.04.22 C h ina

14 K R20060047417A 2005.04.22 R epublic of K o re a

15 K R100992787B1 2005.04.22 R epublic of K o re a

16 JP4741278B2 2005.04.22 Japan

17 JP2005322227A 2005.04.22 Japan

18 C N 1691579A 2005.04.22 C h ina

19 H K 1083901A 1 2006.03.28

Th e H ong K ong Special

A d m inistrative R egion of th e

P e ople's R epublic of C h ina

F o rw ard C itatio n Info rm atio n

N O P atent N o C ountry Title of Th e Invention F iling Date A pplicant R igh t h old e r

1 U S9224168B2 U S tuning pro d uct pol... 2012.12.11M IC R O SO F T TEC H N O L O G Y

L IC EN SIN G , L L C., W A SH IN G TO N

M IC R O SO F T TEC H N O L O G Y


2 U S8640260B2 U S m eth o d s, system s a... 2012.05.11A T&T IN TEL L EC TU A L

PR O PER TY I R A K U TEN , IN C.

3 U S9336359B2 U S d evice certificate... 2012.02.06M IC R O SO F T TEC H N O L O G Y




4 U S9084031B2 U S content license st... 2010.12.13M IC R O SO F T TEC H N O L O G Y




5 U S8191165B2 U S m eth o d s, system s, ... 2010.12.08A T&T IN TEL L EC TU A L


6 U S8781969B2 U S e xtensible m e d ia r... 2010.07.13 M IC R O SO F T M IC R O SO F T

7 U S8719171B2 U S issuing a publish e... 2010.07.08 M IC R O SO F TM IC R O SO F T TEC H N O L O G Y


8 U S9424399B2 U S availability of pe... 2009.05.12M IC R O SO F T TEC H N O L O G Y




9 U S9189605B2 U S protecte d com putin... 2009.02.23M IC R O SO F T TEC H N O L O G Y




10 U S8700535B2 U S issuing a publish e... 2008.03.21 M IC R O SO F TM IC R O SO F T TEC H N O L O G Y


11 U S7877813B2 U S copy protection m e... 2007.07.26 L G EL EC TR O N IC S. IN C. L G ELEC TR O N IC S. IN C.

12 U S7874015B2 U S m eth o d s, system s, ... 2006.05.12A T&T IN TEL L EC TU A L


13 U S9436804B2 U S e stablish ing a uni... 2005.09.15M IC R O SO F T TEC H N O L O G Y




14 U S8336085B2 U S tuning pro d uct pol... 2005.09.12 M IC R O SO F T M IC R O SO F T

15 U S8176564B2 U S special pc m od e en... 2005.06.14 M IC R O SO F T M IC R O SO F T

16 U S8353046B2 U S system and m eth o d ... 2005.06.08 M IC R O SO F T M IC R O SO F T

U S 07568096 Page | 5 of 8

17 U S9363481B2 U S protecte d m e d ia pi... 2005.04.27M IC R O SO F T TEC H N O L O G Y

L IC EN SIN G , L L C., W A SH IN G TO N M IC R O SO F T

18 U S8438645B2 U S secure clock w ith ... 2005.04.27 M IC R O SO F T M IC R O SO F T

19 U S8725646B2 U S output protection ... 2005.04.15 M IC R O SO F TM IC R O SO F T TEC H N O L O G Y


20 U S8464348B2 U S isolate d com puting... 2004.12.22 M IC R O SO F T M IC R O SO F T

21 U S8347078B2 U S d evice certificate... 2004.12.20 M IC R O SO F T M IC R O SO F T

U S 07568096 Page | 6 of 8

A nalysis of a percentile rank ratio by C PC

H P H Y S IC S 915,853

H 04 C O M P U T IN G ; C A L C U L A T IN G ; C O U N T IN G (sco re co m pute rs f... 419,433

H 04L ELEC TR IC A L DIG IT A L DA T A P R O C ESS IN G (com pute rs in w h ic... 290,648

A PPEN DIX I

Evaluation Ind e x H H 04 H 04L

Strength of Patent R igh t 28.9% 21.1% 19.4%

Q uality of Tech nology 48.4% 36.0% 34.3%

U sability 5.1% 3.4% 3.1%

Total 6.2% 3.6% 3.2%

* A ratio o f ele ctric/ele ctro nic/IT te ch nolo gy classificatio n o f co m pre h e nsive evaluatio n d e no te s th e to p 6.2%

* R e sults o f analysis o f a to p ratio base d on evaluatio n re sults o f a m o d el co rre spo nd ing to th e W IP O 's te ch nolo gy classificatio n

U S 07568096 Page | 7 of 8

C ountrie s in w h ich patent evaluation is to be perfo rm e d A patent inform ation provid e r and an evaluation cycle

A pate nt info rm atio n provid e r A n evaluatio n cycle

K o re an Intelle ctual P ro pe rty

U S P ate nt O ffice

Euro pe an P ate nt O ffice

Stand ard Esse ntial P ate nt C e nte r

F irst m o nth

o f evaluatio n

3 m onth s afte r th e

patent publication

d ate

A n evaluatio n

cycleM o nth ly

Date on w h ich report is w ritten

Date on w h ich a clie nt w rite s th e pate nt evaluatio n re po rt

Patent evaluation d ate Date on w h ich m o nth ly evaluatio n re sults are m ad e

Evaluation M o d el

K R

C o nstructio n as a structural e quatio n m o d el base d on an e xpe rt surve y on im po rtance o f pate nt info rm atio n

A m o d el in w h ich co nfirm ato ry facto r analysis o f th e structural e quatio n m o d elis co m b ine d w ith path analysis, and a causal relatio nsh ip be tw e e n a plurality o f ind e pe nd e nt variable s and a plurality o f d e pe nd e nt variable s is analyz e d .

U S

EU

C o nstructio n as a m ultiple re gre ssio n analysis m o d el in w h ich a k e y evaluatio n facto r fo r e ach evaluatio n ind e x is use d as a d e pe nd e nt variable

T h e m ultiple re gre ssio n analysis is a m e th o d in w h ich an e xte nt o f th e inte rco nne ctivity be tw e e n a d e pe nd e nt variable and tw o o r m o re ind e pe nd e nt variable s is analyz e d .

W IP O Tech nology

C lassification

T h e W IP O provid e s a table in w h ich tech nolo gy is classifie d as electricity/electro nics/IT,

m ech anical tech nolo gy, ph ysical m ate rials, ch e m istry, and bio te ch nolo gy, and th e co rre spo nd ing

tech nical classificatio n is m appe d to th e IP C co d e.

Stanine R atioStanine is a type o f no rm aliz e d stand ard sco re grante d base d on a nine-po int stand ard

acco rd ing to a d e te rm ine d ratio.

Evaluation O vervie w

A PPEN DIX II

N o Evaluation Elem ents(unit)

1U S patent grow th rate und e r

th e C PC level

2 Inte rfe rence

3 IP C

4 R C E

5 R e e xam ination

6 R e issue

7 IP R, PG R in pend ing

8 C ontinuing application


9 C h ange in ow ne rsh ip

10Th e num be r of d raw ing

sh e ets

11Th e length of ind epend ent

claim s

12Th e num be r of ind epend ent

cliam s

13Detaile d d e scription of th e

invention

14 Th e num be r of inventors

15 L e gal proce e d ing

16N th year afte r th e d ate of

grant


17 P rio rity exam ination reque st

18 Backw ard citations (th e sis)

19 A ve rage age of citations

20 Info rm ation provision

21G rant of patent term

extension

22Th e average d epth of th e d epend ent claim s

23 Type of claim

24 forw ard citations


25 Stand ard essential patent

26F iling d ate d iffe rence in forw ard citation

27 F o rw ard citations (th e sis)

28C onclud e d re e xam ination

proce e d ings

29Patent fam ily inform ation

(state s)

Evaluation Elem ents

N ote

� Th e evaluation rating in th is report is calculated using th e structural equation or m ultiple regression analysis m od el based on evaluation elem ents th at

becom e conclusive and final th rough repeated verification of K orean and overseas patent experts on th e basis of objective inform ation provid ed from

patent inform ation provid ers such as th e K IPO .

� W h ile th is repo rt m ay be use d fo r efficient m anagem ent of patents fo r refe rence, ne ith e r th e K IP O no r th e K IP A guarante e s o r take s

responsibility fo r use of th is repo rt as official evid ence w ith re spect to actual m ark et value, ro yaltie s, invalid ation or infringem ent.

� Th is report is a w ork of th e K IPA , and all righ ts are reserved by th e K IPA . A lso, th is report sh all not be d istributed, duplicated, cited, m od ified

or reprinted w ith out consent of th e K IPA .

U S 07568096 Page | 8 of 8

a ppl. n o :10831281 title of th e invention :rendering ...strength of patent righ t a grad e (top...

Documents