Non-volatile record medium, recording method, and recording apparatus

48 Pages·2013·2.7 MB·English

US006985584B1
United States Patent
(12) (10) Patent N0.: US 6,985,584 B1
Yokota et al. (45) Date of Patent: Jan. 10, 2006
(54) NON-VOLATILE RECORD MEDIUM, 5,594,598 A 1/1997 Shikakura
RECORDING METHOD, AND RECORDING 5,652,857 A * 7/1997 Shimoi et al. ............ .. 711/113
APPARATUS 5,787,445 A 7/1998 Daberko
5,812,663 A * 9/1998 Akiyama et a1. ........... .. 705/52
(75) Inventors: Teppei Yokota, Chiba (JP); Nobuyuki 5,889,917 A * 3/1999 Nagai et al. ...... .. 386/54
Kihara, Tokyo (JP) 5,903,704 A * 5/1999 OWashi et al. 386/95
6,167,136 A * 12/2000 Chou . . . . . . . . . . . .. 380/201
(73) Assignee: Sony Corporation, Tokyo (JP) 6,182,088 B1 * 1/2001 Kawakami et a1. ....... .. 707/205
6,192,190 B1 * 2/2001 Tojo et al. ................ .. 386/109
6,289,102 B1 * 9/2001 Ueda et al. ............... .. 380/201
( * ) Notice: Subject to any disclaimer, the term of this
6,356,211 B1 * 3/2002 Shimoyoshi et a1. ....... .. 341/50
patent is extended or adjusted under 35
6,453,120 B1 * 9/2002 Takahashi et al. ........ .. 386/109
U.S.C. 154(b) by 0 days.
* cited by examiner
(21) Appl. No.: 09/536,056
Primary Examiner—David Y. Jung
Assistant Examiner—Tongoc Tran
(22) Filed: Mar. 27, 2000
(74)Att0rney, Agent, or Fi rm—Frommer LaWrence & Haug
(30) Foreign Application Priority Data LLP; William S. Frommer; Samuel S. Lee
Mar. 29, 1999 (JP) ............................. .. P11-086309
Jul. 5, 1999 (JP) .. .. P11-190529 (57) ABSTRACT
Feb. 16, 2000 (JP) ......................... .. P2000-038814
(51) Int. Cl. A non-volatile recording medium for recording a digital
H04N 7/167 (2006.01) audio signal that has been compressed at a compression rate
(52) US. Cl. ..................... .. 380/200; 380/203; 380/217 selectable in a predetermined range and block-segmented in
(58) Field of Classi?cation Search .............. .. 380/201, a predetermined data length is disclosed, Wherein the pre
380/203, 237, 212, 217, 240, 274; 713/200, determined data length of Which the digital audio data is
713/201, 189, 193, 194 block-segmented is decided in consideration of the maxi
See application ?le for complete search history.
mum recordable time and the data length of Which the digital
audio signal is encrypted.
(56) References Cited
U.S. PATENT DOCUMENTS
5,497,419 A 3/1996 Hill 25 Claims, 29 Drawing Sheets
RELATION BETWEEN DATA BYTES AND TRANSMISSION RATES
TRANSMISSION RATE BYTES BYTES TRANSMISSION RATE su SECONDS MINUTES s15r5511711NuTEs) Mono(M[NUTES) NUMBEFB‘LFTEEMW'NG RE?XKQZRSEZYS
71 A, 55.2 255 512 175.4 31 2553.351 47.555 47 95 512 54
35.4 245 495 170.9 33 3037.449 50.524 50 101 15 2
52.7 240 430 155.4 34 3129.493 52.155 52 104 54 5
79.9 232 454 159.9 35 3221.537 53.592 53 107 144 15
77.2 224 445 154.4 35 3313.55 55.225 55 110 255 32
74.4 215 432 140.5 37 3405524 55.750 55 113 400 50
MD 0515 NONE 424 145.1 35 3497.555 59.294 55 NONE 272 34
71.7 209 415 143.3 39 3559712 59529 59 119 150 20
55.9 205 400 137.5 40 3591.755 51.353 51 122 354 45
72\_/ 55.2 192 354 132.3 42 3355544 54.431 54 123 255 32
53.4 194 355 125.5 44 4049.932 57.499 57 134 192 24
50.5 175 352 121.3 45 4234.019 70.557 70 141 192 24
57.9 155 335 115.5 45 4415.107 73.535 73 147 255 32
55.1 155 320 110.3 51 4594.239 75.237 75 155 54 3
73A’ 524 152 304 104.7 53 4375327 91.305 91 152 272 34
49.5 144 253 99.2 55 5154.455 55.903 35 171 255 32
45.9 135 272 93.7 50 5522.534 92.044 92 154 54 5
44.1 125 255 95.2 53 5799755 95.545 95 193 255 32
41.3 120 240 52.7 55 5259995 154315 104 203 54 a
33.5 112 224 77.2 72 5527.151 110.453 110 220 255 32
35.5 104 205 71.7 75 7179424 119.557 119 239 150 20
NONE 200 55.9 51 7455.555 124.259 124 NONE 194 23
74"\_1 33.1 95 192 55.2 55 7523732 130395 130 250 54 5
30.3 55 175 50.5 92 5455.039 141.134 141 292 192 24
27.5 50 150 55.1 102 9303.475 155.475 155 312 54 5
73 145 50.3 112 1030592 171.515 171 343 32 4

U.S. Patent Jan. 10, 2006 Sheet 2 0f 29 US 6,985,584 B1
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U.S. Patent Jan. 10, 2006 Sheet 4 0f 29 US 6,985,584 B1
Fig. 4
APPLICATION
PROCESS
FILE MANAGEMENT
PROCESS
LOGICAL ADDRESS
MANAGEMENT
PHYSICAL ADDRESS
MANAGEMENT
FLASH MEMORY
ACCESS
FILE SYSTEM PROCESS
HIE RARCHY
U.S. Patent Jan. 10, 2006 Sheet 5 0f 29 US 6,985,584 B1
BOOT BLOCK
BOOT 1* BLOOK 0 PAGE 0 HEADER AREA
BLOCKS " BLOCK 1 PAGE 1 BLOPé‘é’B‘ZEKEEREA
“ PAGE 2 CIS/IDI
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UPDATE STATUS
PAGE STATUS
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U.S. Patent Jan. 10, 2006 Sheet 6 6f 29 US 6,985,584 B1
Fig. 6
PARTITION TABLE
(512 BYTES)
BLANK
BOOT SECTOR (512 BYTES)
3 4 5 6
COPY OF FAT
ROOT DIRECTO RY
CLUSTER
CLUSTER empty
CLUSTER
R
CLUSTER CAT
CLUSTER (ATRAC-3 Data)
DSIREUCTOBRY
CLUSTER
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CLUSTER I2
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empty
ITER 100
CLUSTER :01 (ATRACS Data)
DAARTEAA
110
CLUSTER 111 (ATRACS Data)
usITEa 200
CLUSTER 201
U.S. Patent Jan. 10, 2006 Sheet 7 0f 29 US 6,985,584 B1
Fig. 7
ROOT
DCIM ...STILL PICTURE DIRECTORY
MOxxxnn ...MOVING PICTURE DIRECTORY
-- VOICE ...VOICE DIRECTORY
-—G AVCTL ...CONTROL DIRECTORY
——-E] HIFI ...MUSIC DIRECTORY
-— PBLISTMSF ...REPRODUCTION MANAGEMENT FILE
—— A3DOOO01 ...ATRAC3 MUSIC PROGRAM DATA FILE
— A3Dnnnnn ...ATRAC3 MUSIC PROGRAM DATA FILE
— A3Dnnnnn+1 ...ATRAC3 MUSIC PROGRAM DATA FILE
Fig. 8
REPRODUCTION
MANAGEMENT FILE
Header
NM1-S
NM2—-S
16 K Byt TRKTBL
L__I_NF_-S_ .I
U.S. Patent Jan. 10,2006 Sheet 8 0f 29 US 6,985,584 B1
Fig. 9
ONE ATRACK3 MUSIC
PROGRAM DATA FILE
A Header
NM1 HATETARIDBEUTRE
NM2
16 K Byte TRKINF
PRTINF
INF
Y
Header
16 K Byt
ATRAC3DATA
l g 1
I l
I ‘ |
l 0 |
l l
Header
16 K Byt
ATRAC3DATA
U.S. Patent Jan. 10, 2006 Sheet 9 0f 29 US 6,985,584 B1
Fig. 10A
ATRAC3 FILE 1
II + + “ ENLARGED VIEW OF
1 CLUSTER 4—th CLUSTER
<———— 1 PART
1-st MUSIC
1-st MUSIC PROGRAM START PROGRAM END
/1
PART END 1-st MUSIC PROGRAM END
ATRACK3 FILE 2
5 l
M II
Z-nd MUSIC PROGRAM START 2-nd MUSIC PROGRAM END
Fig. 105
ATRACK3 FILE 1
M I 7M
\ PART 2 END 7"
PART 1 START PART 1 END PART 2 START
1-st MUSIC PROGRAM START 1-st MUSIC PROGRAM END
Fig. 106
ATRACK 3 FILE 1
1-st MUSIC PROGRAM 1-st MUSIC PROGRAM
START END
ATRACK 3 FILE 2
0 x‘ a @141; 4,
II A
2-nd MUSIC PROGRAM 2-nd MUSIC PROGRAM
START END