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Class Information
Number: 369
Name: Dynamic information storage or retrieval >
Description: A. This is the generic class for processes of and apparatus for the storage or retrieval of arbitrarily variable information (as defined in the glossary below) which is retained in a storage medium by variation of a physical characteristic thereof. The information is stored or retrieved by causing or sensing a variation of a physical characteristic of the storage medium by a transducer having relative motion along a continuous path.










Class Number Class Name No. of Patents
369/15

Alternative diverse types of storage or retrieval

42
369/59.1

Binary pulse train information signal

329
369/59.19

Binary signal detecting using a clock signal

186
369/59.15

Binary signal gain processing

89
369/59.16

Within a frequency band

54
369/59.17

Binary signal level detecting using a reference signal

182
369/59.18

Plural reference signals

60
369/59.27

Binary signal multiplexing or demultiplexing

58
369/59.2

Binary signal phase processing

176
369/59.11

Binary signal processing for controlling recording light characteristic

622
369/59.12

Pulse forming by adjusting binary signal phase or shifting binary signal pulse

349
369/59.26

Binary signal processing of sectioned information

169
369/59.14

Changing a system mode

65
369/59.25

Format arrangement processing for auxiliary information

806
369/59.23

Having specific code or form generation or regeneration processing

252
369/59.24

During storage

210
369/59.21

Including sampling or a/d converting

207
369/59.22

By interpolating or maximum likelihood detecting

302
369/59.13

Selecting from a plurality of binary processing types

71
369/1

Combined independent audio systems

57
369/2

Changeover between audio systems

107
369/3

Fading between plural signals

36
369/4

Combining signals to form composite (e.g., mixing)

140
369/5

One of systems having plural concurrent signals (e.g., stereophonic)

31
369/6

Radio

80
369/12

Cabinet details

43
369/7

Including recording from radio

96
369/11

Including separable assembly

38
369/9

Mechanical phonograph

10
369/8

Oscillator modulated by retrieved information signal

2
369/10

With common cabinet for cartridge or cassette

33
369/53.1

Condition indicating, monitoring, or testing

284
369/53.42

Having abnormality condition indicating

108
369/53.11

Including radiation storage or retrieval

118
369/53.12

Having abnormal condition indicating

191
369/53.13

Due to unwanted operational condition of record carrier

83
369/53.15

Defect

473
369/53.16

Including storage or retrieval of auxiliary signal

113
369/53.17

Defect location indicating

493
369/53.14

Eccentricity or warp

141
369/53.19

Relative transducer to medium misalignment (e.g., relative tilt)

372
369/53.18

System disturbance

180
369/53.37

Initialization or start-up mode or changing system mode:

398
369/53.2

Of record carrier

654
369/53.22

By detection of storage medium incident radiation

532
369/53.23

Derived focusing or tracking related signal

339
369/53.21

For protection

453
369/53.24

Having unrecorded location indicating

287
369/53.3

Of relative motion producing mechanism

211
369/53.31

Of storage or retrieval information signal

388
369/53.32

Dropout indicating

72
369/53.35

Signal error correcting or detecting

335
369/53.36

During storage

155
369/53.34

Time based parameter

350
369/53.33

Unwanted signal component indicating

134
369/53.25

Of transducer assembly mechanism

72
369/53.26

Energy producing device

327
369/53.27

By detection of storage medium incident radiation

194
369/53.28

Focusing or tracking servo

527
369/53.29

Transduced location indicating

250
369/53.45

Initialization or start-up mode or changing system mode

111
369/53.41

Of record carrier

213
369/53.43

Of relative motion producing mechanism

34
369/53.44

Of storage or retrieval information signal

95
369/53.38

Of transducer assembly mechanism

49
369/53.4

Positioning adjunct

12
369/53.39

Transducer location indicating

28
369/19

Control by timer or external extraneous condition

61
369/20

By diverse art device

15
369/22

Audible indicator

12
369/23

Talking clock

4
369/21

In vehicle or elevator

44
369/47.1

Control of storage or retrieval operation by a control signal to be recorded or reproduced

511
369/47.14

By medium defect indicative control signal

484
369/47.15

Control of information signal processing channel

195
369/47.25

For gain processing

114
369/47.27

Using a reproduced information of specified preformat, header, or reference area

302
369/47.26

Within a frequency band

58
369/47.18

For interpolating or drop-out correcting

79
369/47.19

For modulating or demodulating

205
369/47.2

For multiplexing or demultiplexing

83
369/47.21

Of sub-code information

153
369/47.22

Having location identification information

264
369/47.28

For phase, timing, or rate processing

438
369/47.29

During retrieval at dynamic retrieval rate different from storage rate

36
369/47.32

Including static memory accessing

143
369/47.33

Including static memory fill level monitoring or controlling

177
369/47.34

Including static memory write address controlling

75
369/47.31

Using program or address signal

114
369/47.3

While changing of system mode or dynamic retrieval rate

149
369/47.17

For removal of unwanted signal component

151
369/47.35

For sampling, digital to analog or analog to digital converting

184
369/47.23

For sequencing or switching

147
369/47.24

Between alternative processing channels

71
369/47.16

Of plural interrelated channels

150
369/47.11

Control of initiation of pause mode

103
369/47.12

For copying

245
369/47.13

For editing

156
369/47.36

Mechanism control by the control signal

90
369/47.38

Control of relative motion producing mechanism

127
369/47.45

By a selected relative motion error signal

86
369/47.46

By information signal characteristic

73
369/47.47

By program or address signal

49
369/47.48

By synchronous signal

184
369/47.39

During initialization or start-up

86
369/47.43

Having different storage and retrieval relative motion

27
369/47.44

Responsive to abnormal condition

86
369/47.41

Responsive to change in transduced information characteristic

63
369/47.4

Responsive to change in transduced location

144
369/47.42

Responsive to stand-by or pause mode operation

32
369/47.37

Control of spiral track spacing (e.g., signal variable pitch)

32
369/47.49

Control of transducer assembly mechanism

124
369/47.54

By program or address signal

151
369/47.5

Power control for energy producing device

456
369/47.51

For storage

282
369/47.52

During multiple system modes

116
369/47.53

Stored and retrieved testing signal

607
369/47.55

During initialization or start-up or changing system mode

174
369/52.1

Control structure on storage medium sensed by other than transducer support (e.g., conductive strip, notched edge sensor)

89
369/300

Detail of optical slider per se

94
369/84

Duplication or copying (e.g., rerecording)

320
369/85

To diverse type of storage medium

89
 

Dynamic mechanism subsystem (369/176)

 
369/176

Dynamic mechanism subsystem

15
369/178.01

Access of multiple storage elements (e.g., record changer)

62
369/212

Auxiliary structure (e.g., shut-off preventer, disc spacer)

10
369/199

Both sides of disc used

42
369/200

By inverting disc

12
369/183

Cam shaft transverse to turntable spindle axis of record changer

3
369/179

Cylindrical storage element

13
369/202

Discs sequentially fed to turntable

7
369/206

By center hold feeding of disc (e.g., spindle drop)

12
369/208

Having specified spindle structure

3
369/210

Having shoulder and ejector lever

3
369/211

With edge stabilizer

1
369/209

Umbrella type

5
369/207

Support mechanism adapter for large hole records on small hole spindles

6
369/204

By edge controlled feeding of disc

9
369/205

With feed cooperating structure on spindle

1
369/203

Tone arm set down adjustment

9
369/201

Discs sequentially removed from turntable

3
369/180

Flexible disc

8
369/182

Numerical count shut-off

5
369/197

Plural turntables

21
369/198

Plural tone arms

8
369/196

Separate motors operate turntable and disc change mechanism

6
369/181

Stack height adjustment for tone arm or turntable

4
369/191.1

Storage disc fed to and removed from turntable

4
369/195

Both sides of disc used

34
369/194

Coplanar storage

38
369/193

Grouped removal with sequential feed

0
369/192.1

Plural disc holder having unitary separating structure

5
369/184

Tone arm position control by sensing of disc (e.g., disc or hole size)

7
369/188

Disc size sensor at turntable position

7
369/187

Disc size sensor in feed path

6
369/185

Disc size sensor on or using tone arm

2
369/186

Stepped tone arm stop element

4
369/189

Turntable speed control

25
369/190

By sensing of disc (e.g., disc or hole size)

16
369/213

Additional motion of storage element support to effect tracking

15
369/214

Cylindrical storage element

1
369/215.1

Having power driven transducer assembly

19
369/218

Having groove engaging driving element

11
369/216

Having tone arm set-down control

32
369/217

By disc sensing (e.g., by sensed disc or hole size)

15
369/230

Power cueing (i.e., engage/disengage)

59
369/225

Restoring after passive tracking

22
369/226

Responsive to transducer support condition (e.g., movement or position)

31
369/228

Controllable position

4
369/227

Numerical count replay

1
369/229

Turntable mounted template

2
369/219.1

With drive transverse to storage track

36
369/223

By lead screw

46
369/220

Controlled by transducer assembly support

43
369/222

Having pivoted tone arm

26
369/221

With additional drive (e.g., scanning, restoring, or return)

53
369/224

With passive linear tracking

8
369/177

Having stationary storage medium

28
369/233

Mechanism condition or storage medium responsive control

43
369/242

Antiskating

10
369/243

Energizing circuit

34
369/239

Speed

46
369/241

Self-responsive (e.g., governor)

10
369/240

Variable radius compensation (e.g., constant interaction speed)

40
369/234

With turntable braking (e.g., tone arm position responsive)

3
369/236

Adjustable

0
369/238

End limit sensor coupled with tone arm

0
369/237

With electrical control of brake

6
369/235

With stopping of motor

7
369/231

Mechanism responsive to control structure on storage medium sensed by transducer assembly support (e.g., trip device)

32
369/232

With turntable braking (e.g., velocity or reverse responsive)

3
369/258.1

Specific detail of storage medium support or motion production

15
369/260

For cylinder

4
369/259

For endless web looped about plural rotatable mounts (e.g., belt)

3
369/261

For pliable (e.g., floppy) disc

71
369/263.1

Mounting structure for support or motion producing assembly (e.g., vibration damping)

32
369/264

Turntable

92
369/269

Bearing structure

50
369/268

Braking

22
369/270.1

Disc holding or locating (e.g., spindle structure)

32
369/271.1

With detail of storage medium contact structure on turntable surface

26
369/266

Driving mechanism

104
369/267

Speed changing

39
369/265

With auxiliary turntable

20
369/262

With storage medium removal adjunct

20
369/244.1

Specified detail of transducer assembly support structure

58
369/251

Having application of counterbalancing force

26
369/253

By resilient force element (e.g., spring)

21
369/252

Lateral (e.g., antiskating)

20
369/254

Specified weight mounting

26
369/249.1

Having linear guide

31
369/255

Having specified bearing structure

43
369/256

Mechanical details of cartridge mounting

60
369/250

Pivoted arm with tracking path compensation

19
369/257

Rest

9
369/247.1

Vibration or resonance suppression

28
369/248

By viscous damping

19
369/245

With manual tone arm displacement adjunct (e.g., cueing)

15
369/246

With viscous limiting of motion (e.g., rate damping)

15
369/83

Editing of stored information

179
369/24.01

Information location or remote operator actuated control

45
369/42.01

By mechanical linkage

1
369/25.01

Dictation or transcribing

88
369/29.02

Portable device

37
369/26.01

Privacy

16
369/29.01

Remote station

73
369/27.01

With access to or marking of specified location (e.g., indexing)

33
369/28.01

By stored additional signal (e.g., tone)

22
369/30.01

Selective addressing of storage medium (e.g., programmed access)

109
369/40.01

By manually actuated mechanism for movement of tone arm

4
369/30.02

Novelty device (e.g., talking doll)

43
369/30.03

Of optical storage medium

171
369/30.27

Electrical control signal processing

183
369/30.36

Abnormal condition or changing mode of system

117
369/30.37

Of particular order of contents

14
369/30.28

Plural storage medium elements

69
369/30.34

For linear array positioning of unitary plural storage medium carrier (e.g., horizontal or vertical positioning)

69
369/30.31

For operation of storage medium gripper, accessor, or transfer member

67
369/30.33

For radial array positioning of unitary plural storage medium carrier

34
369/30.32

For record medium loading or ejecting

86
369/30.35

For relative positioning between storage medium elements

17
369/30.29

Matching control signal

26
369/30.3

Of information indicative of contents or particular order of contents

60
369/30.18

Electrical information signal processing

66
369/30.24

Abnormal condition or changing mode of system

69
369/30.25

Auxiliary information

56
369/30.23

Buffering

196
369/30.19

Copying or editing

73
369/30.21

Monitoring signal error or verification

44
369/30.22

Correction of error

39
369/30.2

Plural storage medium elements

22
369/30.64

Plural optical storage media in disc changer

15
369/31.01

Having particular cabinet

17
369/30.65

Plural media are discs stored in cartridges

4
369/30.72

Having particular internal support structure for internal transfer mechanism

6
369/30.7

Having particular internal transfer mechanism for transferring disc while disc is inside of disc changer

27
369/30.71

Of carousel changer

5
369/30.75

Having particular mechanism or slot for transferring disc into changer from outside

11
369/30.68

Having particular removable magazine

9
369/30.73

Having specified drive

4
369/30.74

Movable drive

11
369/30.66

Having specified stocker or internal magazine

12
369/30.69

Mounting or locking magazine to disc changer

7
369/30.67

Stocker or internal magazine is adjustable or movable

7
369/30.76

Plural media are unprotected (i.e., discs that are not in cartridges)

10
369/30.81

Having disc reproduced while entirely in magazine

19
369/30.82

Having disc reproduced while partially in magazine

33
369/30.85

Having particular internal transfer mechanism for transferring disc while disc is inside of disc changer

170
369/30.86

Of carousel changer

45
369/30.9

Having particular mechanism or slot for transferring disc into changer from outside

38
369/30.91

Of carousel changer

16
369/30.93

One tray for multiple discs

22
369/30.95

Chucking mechanism

11
369/30.98

Having single motor that drives multiple mechanisms

11
369/30.94

Loading mechanism

19
369/30.96

Locking mechanism

10
369/30.97

Positioning mechanism

11
369/30.99

One tray for single disc

14
369/30.92

Plural trays

32
369/30.83

Having particular removable magazine

52
369/30.88

Having specified drive

15
369/30.89

Movable drive

51
369/30.87

Having specified internal support structure for internal transfer mechanism

15
369/30.77

Having specified stocker or internal magazine

40
369/30.84

Mounting or locking magazine to disc changer

34
369/30.78

Stocker or internal magazine is adjustable or movable

74
369/30.79

In carousel changer

17
369/30.8

Positioning mechanism

17
369/30.38

Plural optical storage media in library system

52
369/30.63

Having particular cabinet

19
369/30.39

Modular library system

40
369/30.4

Plural media are discs stored in cartridges

42
369/30.5

Carousel array

10
369/30.48

Having particular mechanism or slot for transferring disc into library from outside

45
369/30.42

Having particular removable magazine

39
369/30.46

Having specified disc drive

12
369/30.47

Drive moves into alignment with disc

5
369/30.41

Having specified disc rack

24
369/30.43

Having specified picker

119
369/30.44

Of carousel library system

9
369/30.49

Linear vertical or horizontal array

22
369/30.45

Picker support structure (i.e., mechanism for moving picker)

71
369/30.51

Plural media are unprotected (i.e., discs that are not in cartridges)

10
369/30.62

Carousel array

2
369/30.6

Having particular mechanism or slot for transferring disc into library from outside

12
369/30.53

Having particular removable magazine

9
369/30.58

Having specified disc drive

11
369/30.59

Drive moves into alignment with disc

8
369/30.52

Having specified disc rack

18
369/30.55

Having specified picker

52
369/30.56

Of carousel library system

5
369/30.61

Linear vertical or horizontal array

18
369/30.54

Mounting or locking magazine to library system

7
369/30.57

Picker support structure detail (i.e., mechanism for moving picker)

34
369/30.26

Remote operating mode control

22
369/30.1

Transducer movement control using recorded information indicative of location of information (e.g., track address)

192
369/30.13

Counting tracks traversed by transducer

101
369/30.14

Count correction

34
369/30.11

Location information correction

60
369/30.15

Multiple movement control modes

126
369/30.16

Specific detail of terminating

69
369/30.12

Particular track portion

118
369/30.17

Transducer velocity control

186
369/30.04

Using recorded information indicative of storage medium contents

233
369/30.05

Copying or editing

99
369/30.08

Designating particular order of contents (e.g., sequential playing back by playlist)

100
369/30.09

Specified order of contents information modification processing

84
369/30.06

Plural storage medium elements (e.g., "juke box")

92
369/30.07

Specified contents information modification processing

108
369/41.01

Of track on single storage medium

18
369/35.01

Plural nontranslating storage elements (e.g., in situ)

5
369/33.01

Specified electrical control signal processing

59
369/34.01

Plural storage medium elements

78
369/32.01

Specified electrical information signal processing

53
369/36.01

Unitary plural record carrier

30
369/38.01

Moving linear array

6
369/37.01

Radial array

13
369/39.01

Scanning turntable

3
369/16

Mechanical production of optical storage track

16
369/292

Miscellaneous

124
369/18

Optical reading of mechanical record

31
369/60.01

Signal processing by storage and subsequent retrieval (e.g., frequency shift, delay, etc.)

57
369/14

Simultaneous diverse types of storage or retrieval

240
369/63

Sound reproduction for toy or novelty device (e.g., talking doll)

94
369/65

Indexing to track (e.g., consecutive)

32
369/66

By chance

5
369/68

Manual motion application (e.g., novelty card, hand-held stylus)

16
369/67

With beginning or end of cycle stylus return

54
369/64

With electrical information signal processing

31
 

Specific detail of information handling portion of system (369/99)

 
 

Specific detail of information handling portion of system (369/99)

 
 

Radiation beam modification of or by storage (369/100)

 
 

Radiation beam modification of or by storage medium (369/100)

 
369/99

Specific detail of information handling portion of system

33
369/126

Electrical modification or sensing of storage medium (e.g., capacitive, resistive, electrostatic charge)

826
369/174

Including signal modification

20
369/175

Frequency dependent (e.g., separation)

21
369/127

Mechanical modification or sensing of storage medium

43
369/153

Including treatment to facilitate storage (e.g., storage medium softening)

9
369/154

Heating (e.g., heated stylus)

14
369/155

Mechanical conversion to or from sound

8
369/158

Acoustical tone arm

1
369/159

Having plural acoustical paths

1
369/156

Including fluid coupling in force linkage

1
369/157

Sound box with mounting structure

3
369/160

Sound box

0
369/164

Convertible between lateral and perpendicular modulation modes

1
369/162

Including stylus pivoted from fixed casing

2
369/169

Lateral mechanical modulation

0
369/165

Perpendicular mechanical modulation

0
369/168

Floating weight

0
369/166

Recording

2
369/167

With mechanical amplification (e.g., frictional coupling)

0
369/161

With interchangeable styli

0
369/163

With sound modification

1
369/135

Specified structure of electrical transducing assembly

12
369/150

Capacitive or electrolytic liquid

1
369/144

Electret or piezoelectric

25
369/143

Electron tube

2
369/151

Electrostatic or capacitive

21
369/146

Magnetic field variation (e.g., magnetostrictive)

38
369/147

Moving signal coil

43
369/148

Variable reluctance

8
369/149

Fixed coil surrounding fixed part of magnetic path

22
369/136

Multichannel (stereo cartridge)

43
369/137

By stress application to solid transducing element (e.g., piezoelectric)

10
369/138

With adjustable or replaceable stylus coupling structure

3
369/139

With details of damping or compliance

36
369/141

Plural alternative or with signal handling adjunct

1
369/140

Plural styli

8
369/145

Semiconductive

10
369/142

Stylus controlled optical element

1
369/152

Variable resistance

2
369/170

Stylus holder or shield

98
369/171

With structure to interchange styli

13
369/172

By replacement

10
369/173

Stylus

62
369/128

With electrical information signal processing

22
369/131

Bidirectional information flow (e.g., record/replay switching)

4
369/129

From information modulated oscillator

21
369/132

Recording

26
369/133

With transformation or intentional distortion of information signal (e.g., compensation for velocity variation with diameter)

31
369/130

Sensing of elastic deformation or relaxation of storage medium (e.g., skid type)

17
369/134

With particular amplification characteristic or signal control circuitry (e.g., muting)

27
369/100

Radiation beam modification of or by storage medium

564
369/108

Color

38
369/109.01

Diffractive storage medium information element

165
369/109.02

Plural elements with distinct diffractive characteristics

91
369/107

Ground noise suppression, signal envelope, or plural optical modulation

88
369/117

Having movable shutter or light gate

31
369/112.01

Having particular optical element or particular placement thereof in radiation beam path to or from storage medium

636
369/112.02

Crystal (e.g., liquid, elasto-optic, photo-refractive, etc.)

309
369/112.03

Diffractive

280
369/112.15

Holographic

186
369/112.05

In radiation beam path to storage medium

234
369/112.1

Holographic

209
369/112.06

Sectioned optical element

63
369/112.08

Lens section

201
369/112.07

Plural diffractive sections

248
369/112.09

Prism, mirror, or waveguide section

82
369/112.04

Plural distinct diffractive optical elements

143
369/112.11

Sectioned optical element

43
369/112.13

Lens section

47
369/112.12

Plural diffractive sections

291
369/112.14

Prism, mirror, or waveguide section

59
369/112.29

Mirror

231
369/112.23

Particular lens

661
369/112.24

Plural distinct lenses

436
369/112.25

Sectioned element

56
369/112.26

Plural lens sections

216
369/112.22

Particular optical filter

73
369/112.16

Polarized or polarizing

164
369/112.17

Plural distinct polarized optical elements

275
369/112.18

Sectioned optical element

31
369/112.2

Lens section

81
369/112.19

Plural polarizing sections

153
369/112.21

Prism, mirror, or waveguide section

168
369/112.28

Prism

269
369/112.27

Waveguide

308
369/120

Having particular radiation sensor

297
369/125

Having photographic storage medium (e.g., variable density or area)

73
369/103

Holographic

720
369/101

Invisible radiation (e.g., electron beam or x-ray)

167
369/116

Light intensity adjustment or maintenance

1370
369/102

Multiplex

44
369/106

Optical feedback

83
369/105

Penumbra or push-pull optical system

12
369/110.01

Polarization of or by storage medium information element

78
369/110.02

Separation into plural polarization component beams

61
369/110.03

By diffraction

41
369/110.04

Using plural polarized or polarizing optical elements

97
369/104

Ribbon light modulator

3
369/111

Spiral or helical track

411
369/118

With detail, configuration, or adjunct of element having slit or aperture in radiation path

265
369/119

With movement of optical beam (e.g., galvanometer)

94
369/124.01

With details of electrical signal processing

133
369/124.07

Auxiliary information arrangement processing (e.g., block headers, subcode, or interpolated information, etc.)

155
369/124.06

Compressing or decompressing

49
369/124.1

Gain processing

59
369/124.11

Of retrieved signal

110
369/124.12

Of signals obtained from photo-detector components

139
369/124.13

With specific frequency or frequency range

64
369/124.05

Integrating or sampling

109
369/124.15

Level detecting using reference signal

156
369/124.04

Modulating or demodulating

112
369/124.09

Multiplexing or demultiplexing

45
369/124.14

Rate, phase, or transient processing

166
369/124.08

Sectioned information processing (e.g., lengths, frames, or blocks, etc.)

57
369/124.02

With transducing multiple tracks

88
369/124.03

With transducing using plural beams

66
369/113

With medium contacting drum or gate in optical system (e.g., sound head)

17
369/114

Movable roller support for optical path

16
369/115

With driving or stabilizing mechanism

13
369/121

With particular light source (e.g., laser, crt with phosphor)

489
369/123

Glow lamps

5
369/122

Solid state

229
369/13.56

Storage different from retrieval (e.g., optical recording and magnetic reproduction)

37
369/272.1

Storage medium structure

78
369/289.1

Adjuncts or adapters

1
369/290.1

For central area of disc (e.g., hole size or drive sticker)

17
369/291.1

Protectors

24
369/273

Combined with diverse art structure

146
369/274

Composite (e.g., package with preview record)

20
369/276

Electrical track structure

86
369/287

Flexible

46
369/283

Layered (e.g., permanent protective layer)

794
369/286

Laminated or unified discrete layers

446
369/284

Radiation beam modified or controlling (e.g., photosensitve, optical track)

528
369/285

With mask

48
369/275.1

Optical track structure (e.g., phase or diffracting structure, etc.)

1106
369/275.2

Erasable, reversible or re-recordable

525
369/275.4

Pit/bubble/groove structure specifies

1385
369/275.5

Protection (e.g., preventing damage to medium, etc.)

248
369/275.3

Track data format/layout

1996
369/277

Special groove (e.g., particular groove shape)

128
369/278

Groove acts as control system signal

52
369/279

Guide during storage or retrieval

59
369/280

Specific disc profile

96
369/281

With interdisc coupling

20
369/282

Specified center hole or locating structure

108
369/288

Specified material

1045
369/61

Storage of directly retrievable modulated r.f. or superaudible carrier signal

48
369/62

Storage of signal modulating component

10
369/13.01

Storage or retrieval by simultaneous application of diverse types of electromagnetic radiation

118
369/13.02

Magnetic field and light beam

169
369/13.04

Erasing

25
369/13.34

In compact size assembly

35
369/13.03

Initializing

32
369/13.13

Integral transducers

218
369/13.24

Light beam generation

140
369/13.32

Light beam transducer assembly

181
369/13.33

Near field optic

415
369/13.28

Multiple light beams

63
369/13.25

Overwriting

24
369/13.29

Polarized light beam

56
369/13.31

Linear polarization

26
369/13.3

Plural polarization

25
369/13.26

Setting light beam power level

76
369/13.27

Based on referenced test signal

46
369/13.14

Magnetic field generation

97
369/13.15

Leakage magnetic field

30
369/13.22

Magnetic field generating circuit

59
369/13.23

Conductor coil

42
369/13.17

Magnetic field transducer assembly

169
369/13.2

Operative location positioning of transducer assembly

55
369/13.21

During load and unload of storage medium

38
369/13.18

Permanent magnet

21
369/13.19

Rotating magnet

18
369/13.16

Overwriting

17
369/13.11

Positioning of transducer assembly for storage or retrieval

41
369/13.05

Reading

52
369/13.06

By transferring magnetic domain between layers

18
369/13.09

Changing size of magnetic domain

16
369/13.07

Three or more magnetic layers

29
369/13.08

Changing size of magnetic domain

29
369/13.12

Relative positioning of transducer assemblies

41
369/13.35

Specific detail of recording medium

169
369/13.36

In protective jacket

18
369/13.55

Land or groove track

69
369/13.54

Recording mark dimension

61
369/13.38

Specific detail of layer (e.g., bias or initializing layers, etc.)

103
369/13.39

Plural distinct storage layers

56
369/13.4

Plural layers having particular order

75
369/13.41

Plural magnetic layers (e.g., recording and reproducing layers)

38
369/13.49

Exchange-coupling magnetization layer

25
369/13.48

In-plane magnetization layer

7
369/13.52

Magnetic domain wall

24
369/13.5

Rare earth or metal alloy

22
369/13.51

Temperature or coercivity

53
369/13.42

Three or more magnetic layers (e.g., recording, intermediate, and reproducing layers, etc.)

50
369/13.44

Exchange-coupling magnetization layer

41
369/13.43

In-plane magnetization layer

37
369/13.47

Magnetic domain wall

42
369/13.45

Rare earth or metal alloy

44
369/13.46

Temperature or coercivity

72
369/13.53

Thickness of layer

79
369/13.37

Tape or card

25
369/13.1

Three or more magnetic states

24
369/86

Storage or retrieval of spatially related acoustic signals (e.g., stereo)

37
369/91

Having distinct electrical channels

10
369/92

Including distinct storage tracks on record medium

14
369/89

Quadraphonic

38
369/90

Including modulated subchannel signal

39
369/87

Simulated spatial effect (e.g., pseudo-stereo)

14
369/88

With transformation or intentional distortion of information signal (e.g., preemphasis)

25
369/93

Systems having plural physically distinct independent tracks on a single storage medium surface

53
369/95

Common time base (i.e., simultaneous)

41
369/96

Continuous consecutive storage or retrieval of interrupted track for single signal (e.g., automatic reversal)

11
369/97

Tracks transverse to a motion component

109
369/94

Having layered storage medium

870
369/98

Indexing to discrete signal tracks (e.g., consecutive, by chance)

13
369/69

Systems or subsystems combined with diverse art device

63
369/70

For control of diverse art device

25
369/17

Track conversion

9
369/75.11

With particular cabinet structure

68
369/80

Particular acoustical structure (e.g., baffle)

3
369/81

Having collapsible or expandable acoustic path

0
369/82

Having parallel acoustic paths

4
369/77.11

Slotted for edgewise insertion of storage disc

21
369/77.21

Having disc stored in protective jacket

83
369/79

With closure-operated interlock or braking actuator

38
369/76

With electrical information signal processing

17
369/78

With lid-mounted transducer assembly carrier

14
369/75.21

With mechanism to place disc on a turntable

16
369/43

With servo positioning of transducer assembly over track combined with information signal processing

257
369/44.11

Optical servo system

475
369/44.41

Arithmetic operation using plural photodetectors

677
369/44.42

Beam or detector is not rectangular or circular

167
369/44.13

Dithering or wobbling the beam or track

411
369/44.27

Initialization/start-up or changing modes of system

474
369/44.29

Servo loop gain/switching control

935
369/44.31

Recording

61
369/44.28

While track jumping or crossing

917
369/44.32

Means to compensate for defect or abnormal condition

1239
369/44.33

Recording (e.g., inhibit recording upon defect, etc.)

63
369/44.14

Optical head servo system structure

827
369/44.15

Elastic, flexible, pliant or spring support of lens or mirror

403
369/44.16

Flat flexible support (e.g., parallel leaf spring, etc.)

232
369/44.22

Lens or mirror floats, (e.g., magnetic field support or lens/mirror can freely float and pivot about its own axis, etc.)

186
369/44.17

Optical head element with rotary motion

77
369/44.19

Head element pivots on arm (e.g., optical head disc arm etc.)

67
369/44.21

Lens or mirror pivots off center (e.g., on a shaft, etc.)

102
369/44.18

Rotary head wheel or scanner (e.g., for use with arcuate, transverse or slant tracks, etc.)

52
369/44.23

Structure for shaping beam or causing astigmatic condition

1202
369/44.24

Means to mask or shield a portion of the beam

247
369/44.37

Plural incident beams

742
369/44.38

Recording

217
369/44.39

Recording

78
369/44.34

Sampling servo system

540
369/44.35

Servo loop gain/switching control

549
369/44.36

Variable gain

212
369/44.25

Servo signal compared to a reference signal

517
369/44.26

Servo system operation related to disc structure information format

731
369/44.12

Solid state optical element with plural dissimilar optical components (e.g., using i.c. block, etc.)

375
369/72

With storage medium cleaning or electrostatic chanrge neutralization

130
369/73

By charge leakage (e.g., ionized particles)

11
369/74

By tone arm attachment

13
369/71

With stylus cleaning or treatment (e.g., grinding)

80
 
 
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