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US007620844B2

(12)

Ulllted

States

Patent

(10)

Patent

N0.:

7,620,844

Mambakkam

a].

(45)

Date

Patent:

*Nov.

17,

2009

(54)

FIELD-OPERABLE,

STAND-ALONE

(56)

References

Cited

APPARATUS

FOR

MEDIA

RECOVERY

AND

REGENERATION

U.S.

PATENT

DOCUMENTS

4,092,732

5/1978

Ouchi

(75)

Inventors:

Sreenath

Mambakkam,

San

Jose,

5,296,692

3/1994

Shino

(US);

Larry

Lawson

Jones,

Palo

Alto,

5,394,206

2/1995

C0003

(Us);

Arockiyaswamy

Venkidu,

5,396,617

3/1995

Villwock

al.

Menlo

Park’

(Us)

5,436,621

7/1995

Macko

a1.

5,437,020

7/1995

Wells

a1.

(73)

Assignee:

MCM

Portfolio

LLC,

Cupertino,

5,471,038

11/1995

Eisele

al,

(US)

5,485,606

1/1996

Midgdey

5,497,464

3/1996

Yeh

(

)

Notice:

Subject

any

disclaimer,

the

term

this

5,522,049

5/1996

Kimura

a1,

patent

extended

or adjusted

under

5,538,436

7/1996

Garney

U.S.C.

154(b)

days.

5,576,698

11/1996

Card

61:11.

This

patent

subject

terminal

dis-

(Continued)

claimer.

FOREIGN

PATENT

DOCUMENTS

(21)

Appl.No.:

11/844,330

20109810

8/2001

(22)

Filed:

Aug.

23,

2007

(Continued)

(65)

Prior

Publication

Data

OTHER

PUBLICATIONS

2007/0288677

Dec.

13,

2007

Actiontec,

“CameraConnect

Pro

Parallel

Port

Flash

Card

Reader

US,

Application

Data

User’s

Manual,”

available

least

Oct.

28,

1999.

(63)

Continuation

application

No.

11/075,496,

?led

(Continued)

Mar.

2005,

noW

Pat.

No.

7,278,051,

Which

_ _

continuation-in-part

application

No.

10/253,547,

Prlmary

ExammeriNadéem

Iqbal

?led

011

Sep.

23,

2002,

HOW

Pat.

NO.

6,839,864,

which

(74)

A’W’W

Age”!

F’rm4reenberg

Traung’

LLP

continuation-in-part

application

No.

10/064,

967,

?ledon

Sep.

4,2002,noW

Pat.No.

7,093,161,

and

(57)

ABSTRACT

continuation-in-part

application

No.

10/

167,925,

?led

]un_

11,

2002,

now

Pat'

No_

7,222,205,

which

method

for

recovering

data

from

corrupted

?ash

media

and

Continuation

application

No_

09/610,904’

?led

regenerated

damaged

?ash

media

have

been

disclosed.

one

]u1_

2000,

HOW

Pat NO_

6,438’638_

embodiment,

the

method

comprises

accessing

data

?ash

media,

searching

the data

for

?le

indicia

corresponding

(51)

Int.

Cl.

least

one

predetermined

?le

type,

reading

the

data

based

G06F

11/00

(200601)

information

the ?le

indicia,

the

data

including

recovered

(52)

US.

Cl.

........................................................

714/6

?les

and

Storing

the

recovered

?le

Storage

mediunl

Other

(58)

Field

Classi?cation

...................

714/6,

embodiments

have

been

Claimed

and

described

714/2,

13, 15,

37,

See

application

?le

for

complete

history.

Claims,

Drawing

Sheets

START

READING

EXTRA

EVTE

DATA

USWG

PASSTHRU

CMD

FROM

PHvsmL

BLOCK

MEDIA

(EXTRA

BYTES

HOLD

BLOCK

ADDRESSES)

YES

405

LOCK

CIS

BOO

VES—

BLOCK?

410

STORE

THE

PHYSlCAL

&LOG1CAL

NUMBER

PHVS

_T0_L0

LINKED

UST STRU RE

LAST

BLOCK?

YES

1 2 3 4 5 6 ... 36 37

Indice de contenidos

Pagina 1 - (Continued)

US007620844B2 (12) Ulllted States Patent (10) Patent N0.: US 7,620,844 B2 Mambakkam et a]. (45) Date of Patent: *Nov. 17, 2009 (54) FIELD-OPERABLE, ST

Pagina 2 - 7,620,844

US. Patent Nov. 17, 2009 Sheet 7 0f 22 US 7,620,844 B2 Smart Media Ground D3 D4 D5 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Pagina 3

US. Patent Nov. 17, 2009 Sheet 8 0f 22 US 7,620,844 B2 Fig. 6

Pagina 4

Pagina 5

US. Patent Nov. 17, 2009 Sheet 10 0f 22 US 7,620,844 B2 16 CF _/ C u a A PFF 8_ I I 2 2_ 3 EXTERNAL POWER CONTROLLER IC SW INSTANCE | RAM ||_____ E l

Pagina 6 - IVIIVlC/SD-TO-CF

US. Patent Nov. 17, 2009 Sheet 11 0f 22 US 7,620,844 B2 CPU SHIFT CLK a CRC 9_5 DATA /97 ROM BUS Q GPIO RAM E Q TIIVIERS % USB 1 INTERFACEI I E] 72 Fi

Pagina 7 - Illllll

US. Patent Nov. 17, 2009 Sheet 12 0f 22 US 7,620,844 B2 Application Data V104 File System (FAT12, FAT16, FAT32 or other) “1104 Header (Card Informatio

Pagina 8

US. Patent Nov. 17, 2009 Sheet 13 0f 22 US 7,620,844 B2 200 B MAIN START Is the Media SmartMedia? Is the Media Memory Stick? Is any one of PROMPT USER

Pagina 9

US. Patent Nov. 17, 2009 Sheet 14 0f 22 US 7,620,844 B2 PASSTH RU IS, TRUE V 302 IS CIS FOUND? NO—> 301 7 ISSUE PASSTHRU READ ID, v303 TO GET SMART

Pagina 10

US. Patent Nov. 17, 2009 Sheet 15 0f 22 US 7,620,844 B2 B2 START 206 PASSTHRUIS |s MBR FOUND? NO—> TRUE V310 309 BUILD PHYSICAL TO YES LOGICAL TABL

Pagina 11

US. Patent Nov. 17, 2009 Sheet 16 0f 22 US 7,620,844 B2 I D START >v402 v START READING EXTRA BYTE DATA USING PASSTHRU CMD FROM PHYSICAL BLOCK 0 TO

Pagina 12

US 7,620,844 B2 Page 2 U.S. PATENT DOCUMENTS 6,279,061 B1 8/2001 Aoki et 61. 6,279,069 B1 8/2001 Robinson etal. 515841043 A 12/1996 BPrkm 6,282,612 B1

Pagina 13 -

US. Patent NO I START SECTOR TO READ IS PHYSICAL SECTOR 0 L511 YES 520 A5 Nov. 17, 2009 Sheet 17 0f 22 YES 505 STARTING SECTOR TO d READ IS FROM DATA

Pagina 14 - INTERFACEI

Pagina 15 - Application

Pagina 16 - CAPACITY

Pagina 17 - PASSTHRU

Pagina 18 - LOGICAL

Pagina 19 - >v402

Pagina 20 - READING

Pagina 21

Pagina 22

Pagina 23

US 7,620,844 B2 Page 3 2008/0299809 A1 2009/0100207 A1 FOREIGN PATENT DOCUMENTS 12/2008 Mambakkam et al. 4/2009 Jones et al. EP 0775964 9/1996 EP 0987

Pagina 24

Pagina 25

Pagina 26

Pagina 27

Pagina 28

Pagina 29

Pagina 30

Pagina 31

Pagina 32

US. Patent Nov. 17, 2009 Sheet 1 0f 22 US 7,620,844 B2 CF TO PCMCIA [10 Fig. 1A ‘ O 1 \ B! 16 14 PRIOR ART CF TO PCIVICIA Fig. 1B N’ 10 PRIOR ART

Pagina 33

US. Patent Nov. 17, 2009 Sheet 2 0f 22 US 7,620,844 B2 SMART MEDIA £24 Fig. 2A 26\ so _ 3 MM C , 3 \ / . 28) / v 1 MEM STICK :) a 14 18 : I g CFTO CF

Pagina 34

US. Patent Nov. 17, 2009 Sheet 3 0f 22 US 7,620,844 B2 SIVI-TO-CF SMART MEDIA Fig. 3A 26 %\\ C 28 ‘0 I / SD IVIIVlC/SD-TO-CF E L32 MEM STK-TO-CF 18 /

Pagina 35

US. Patent Nov. 17, 2009 Sheet 4 0f 22 US 7,620,844 B2 SIVI-TO-CF SMART MEDIA-COMPATIBLE E g ‘(3030 3024 Fig 3C SD-COMPATIBLE MMC/SD-TO-CF EP3026 E 13

Pagina 36

US. Patent Nov. 17, 2009 Sheet 5 0f 22 US 7,620,844 B2 V00 V00 52 54 56 A0 5_0 A1 ,_ 58 (40 \ L44 Fl g. 4A v00 v00 52, 54 H A0 CF 5_0 H A1 E Q % HH

Pagina 37