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Class   369	DYNAMIC INFORMATION STORAGE OR RETRIEVAL
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1

COMBINED INDEPENDENT AUDIO SYSTEMS

2

Changeover between audio systems

3

Fading between plural signals

4

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

5

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

6

Radio

7

Including recording from radio

8

Oscillator modulated by retrieved information signal

9

Mechanical phonograph

10

With common cabinet for cartridge or cassette

11

Including separable assembly

12

Cabinet details

13.01

STORAGE OR RETRIEVAL BY SIMULTANEOUS APPLICATION OF DIVERSE TYPES OF ELECTROMAGNETIC RADIATION

13.02

Magnetic field and light beam

13.03

Initializing

13.04

Erasing

13.05

Reading

13.06

By transferring magnetic domain between layers

13.07

Three or more magnetic layers

13.08

Changing size of magnetic domain

13.09

Changing size of magnetic domain

13.1

Three or more magnetic states

13.11

Positioning of transducer assembly for storage or retrieval

13.12

Relative positioning of transducer assemblies

13.13

Integral transducers

13.14

Magnetic field generation

13.15

Leakage magnetic field

13.16

Overwriting

13.17

Magnetic field transducer assembly

13.18

Permanent magnet

13.19

Rotating magnet

13.2

Operative location positioning of transducer assembly

13.21

During load and unload of storage medium

13.22

Magnetic field generating circuit

13.23

Conductor coil

13.24

Light beam generation

13.25

Overwriting

13.26

Setting light beam power level

13.27

Based on referenced test signal

13.28

Multiple light beams

13.29

Polarized light beam

13.3

Plural polarization

13.31

Linear polarization

13.32

Light beam transducer assembly

13.33

Near field optic

13.34

In compact size assembly

13.35

Specific detail of recording medium

13.36

In protective jacket

13.37

Tape or card

13.38

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

13.39

Plural distinct storage layers

13.4

Plural layers having particular order

13.41

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

13.42

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

13.43

In-plane magnetization layer

13.44

Exchange-coupling magnetization layer

13.45

Rare earth or metal alloy

13.46

Temperature or coercivity

13.47

Magnetic domain wall

13.48

In-plane magnetization layer

13.49

Exchange-coupling magnetization layer

13.5

Rare earth or metal alloy

13.51

Temperature or coercivity

13.52

Magnetic domain wall

13.53

Thickness of layer

13.54

Recording mark dimension

13.55

Land or groove track

13.56

STORAGE DIFFERENT FROM RETRIEVAL (E.G., OPTICAL RECORDING AND MAGNETIC REPRODUCTION)

300

DETAIL OF OPTICAL SLIDER PER SE

14

SIMULTANEOUS DIVERSE TYPES OF STORAGE OR RETRIEVAL

15

ALTERNATIVE DIVERSE TYPES OF STORAGE OR RETRIEVAL

16

MECHANICAL PRODUCTION OF OPTICAL STORAGE TRACK

17

TRACK CONVERSION

18

OPTICAL READING OF MECHANICAL RECORD

Class 360 is an integral part of this Class (Class 369), as shown by the position of this box, and follows the schedule hierarchy of this Class, retaining all pertinent definitions and Class lines of this class.
	19	CONTROL BY TIMER OR EXTERNAL EXTRANEOUS CONDITION

20

By diverse art device

21

In vehicle or elevator

22

Audible indicator

23

Talking clock

24.01

INFORMATION LOCATION OR REMOTE OPERATOR ACTUATED CONTROL

25.01

Dictation or transcribing

26.01

Privacy

27.01

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

28.01

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

29.01

Remote station

29.02

Portable device

30.01

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

30.02

Novelty device (e.g., talking doll)

30.03

Of optical storage medium

30.04

Using recorded information indicative of storage medium contents

30.05

Copying or editing

30.06

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

30.07

Specified contents information modification processing

30.08

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

30.09

Specified order of contents information modification processing

30.1

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

30.11

Location information correction

30.12

Particular track portion

30.13

Counting tracks traversed by transducer

30.14

Count correction

30.15

Multiple movement control modes

30.16

Specific detail of terminating

30.17

Transducer velocity control

30.18

Electrical information signal processing

30.19

Copying or editing

30.2

Plural storage medium elements

30.21

Monitoring signal error or verification

30.22

Correction of error

30.23

Buffering

30.24

Abnormal condition or changing mode of system

30.25

Auxiliary information

30.26

Remote operating mode control

30.27

Electrical control signal processing

30.28

Plural storage medium elements

30.29

Matching control signal

30.3

Of information indicative of contents or particular order of contents

30.31

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

30.32

For record medium loading or ejecting

30.33

For radial array positioning of unitary plural storage medium carrier

30.34

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

30.35

For relative positioning between storage medium elements

30.36

Abnormal condition or changing mode of system

30.37

Of particular order of contents

30.38

Plural optical storage media in library system

30.39

Modular library system

30.4

Plural media are discs stored in cartridges

30.41

Having specified disc rack

30.42

Having particular removable magazine

30.43

Having specified picker

30.44

Of carousel library system

30.45

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

30.46

Having specified disc drive

30.47

Drive moves into alignment with disc

30.48

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

30.49

Linear vertical or horizontal array

30.5

Carousel array

30.51

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

30.52

Having specified disc rack

30.53

Having particular removable magazine

30.54

Mounting or locking magazine to library system

30.55

Having specified picker

30.56

Of carousel library system

30.57

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

30.58

Having specified disc drive

30.59

Drive moves into alignment with disc

30.6

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

30.61

Linear vertical or horizontal array

30.62

Carousel array

30.63

Having particular cabinet

30.64

Plural optical storage media in disc changer

30.65

Plural media are discs stored in cartridges

30.66

Having specified stocker or internal magazine

30.67

Stocker or internal magazine is adjustable or movable

30.68

Having particular removable magazine

30.69

Mounting or locking magazine to disc changer

30.7

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

30.71

Of carousel changer

30.72

Having particular internal support structure for internal transfer mechanism

30.73

Having specified drive

30.74

Movable drive

30.75

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

30.76

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

30.77

Having specified stocker or internal magazine

30.78

Stocker or internal magazine is adjustable or movable

30.79

In carousel changer

30.8

Positioning mechanism

30.81

Having disc reproduced while entirely in magazine

30.82

Having disc reproduced while partially in magazine

30.83

Having particular removable magazine

30.84

Mounting or locking magazine to disc changer

30.85

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

30.86

Of carousel changer

30.87

Having specified internal support structure for internal transfer mechanism

30.88

Having specified drive

30.89

Movable drive

30.9

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

30.91

Of carousel changer

30.92

Plural trays

30.93

One tray for multiple discs

30.94

Loading mechanism

30.95

Chucking mechanism

30.96

Locking mechanism

30.97

Positioning mechanism

30.98

Having single motor that drives multiple mechanisms

30.99

One tray for single disc

31.01

Having particular cabinet

32.01

Specified electrical information signal processing

33.01

Specified electrical control signal processing

34.01

Plural storage medium elements

35.01

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

36.01

Unitary plural record carrier

37.01

Radial array

38.01

Moving linear array

39.01

Scanning turntable

40.01

By manually actuated mechanism for movement of tone arm

41.01

Of track on single storage medium

42.01

By mechanical linkage

43

WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING

44.11

Optical servo system

44.12

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

44.13

Dithering or wobbling the beam or track

44.14

Optical head servo system structure

44.15

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

44.16

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

44.17

Optical head element with rotary motion

44.18

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

44.19

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

44.21

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

44.22

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

44.23

Structure for shaping beam or causing astigmatic condition

44.24

Means to mask or shield a portion of the beam

44.25

Servo signal compared to a reference signal

44.26

Servo system operation related to disc structure information format

44.27

Initialization/start-up or changing modes of system

44.28

While track jumping or crossing

44.29

Servo loop gain/switching control

44.31

Recording

44.32

Means to compensate for defect or abnormal condition

44.33

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

44.34

Sampling servo system

44.35

Servo loop gain/switching control

44.36

Variable gain

44.37

Plural incident beams

44.38

Recording

44.39

Recording

44.41

Arithmetic operation using plural photodetectors

44.42

Beam or detector is not rectangular or circular

47.1

CONTROL OF STORAGE OR RETRIEVAL OPERATION BY A CONTROL SIGNAL TO BE RECORDED OR REPRODUCED

47.11

Control of initiation of pause mode

47.12

For copying

47.13

For editing

47.14

By medium defect indicative control signal

47.15

Control of information signal processing channel

47.16

Of plural interrelated channels

47.17

For removal of unwanted signal component

47.18

For interpolating or drop-out correcting

47.19

For modulating or demodulating

47.2

For multiplexing or demultiplexing

47.21

Of sub-code information

47.22

Having location identification information

47.23

For sequencing or switching

47.24

Between alternative processing channels

47.25

For gain processing

47.26

Within a frequency band

47.27

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

47.28

For phase, timing, or rate processing

47.29

During retrieval at dynamic retrieval rate different from storage rate

47.3

While changing of system mode or dynamic retrieval rate

47.31

Using program or address signal

47.32

Including static memory accessing

47.33

Including static memory fill level monitoring or controlling

47.34

Including static memory write address controlling

47.35

For sampling, digital to analog or analog to digital converting

47.36

Mechanism control by the control signal

47.37

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

47.38

Control of relative motion producing mechanism

47.39

During initialization or start-up

47.4

Responsive to change in transduced location

47.41

Responsive to change in transduced information characteristic

47.42

Responsive to stand-by or pause mode operation

47.43

Having different storage and retrieval relative motion

47.44

Responsive to abnormal condition

47.45

By a selected relative motion error signal

47.46

By information signal characteristic

47.47

By program or address signal

47.48

By synchronous signal

47.49

Control of transducer assembly mechanism

47.5

Power control for energy producing device

47.51

For storage

47.52

During multiple system modes

47.53

Stored and retrieved testing signal

47.54

By program or address signal

47.55

During initialization or start-up or changing system mode

52.1

CONTROL STRUCTURE ON STORAGE MEDIUM SENSED BY OTHER THAN TRANSDUCER SUPPORT (E.G., CONDUCTIVE STRIP, NOTCHED EDGE SENSOR)

53.1

CONDITION INDICATING, MONITORING, OR TESTING

53.11

Including radiation storage or retrieval

53.12

Having abnormal condition indicating

53.13

Due to unwanted operational condition of record carrier

53.14

Eccentricity or warp

53.15

Defect

53.16

Including storage or retrieval of auxiliary signal

53.17

Defect location indicating

53.18

System disturbance

53.19

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

53.2

Of record carrier

53.21

For protection

53.22

By detection of storage medium incident radiation

53.23

Derived focusing or tracking related signal

53.24

Having unrecorded location indicating

53.25

Of transducer assembly mechanism

53.26

Energy producing device

53.27

By detection of storage medium incident radiation

53.28

Focusing or tracking servo

53.29

Transduced location indicating

53.3

Of relative motion producing mechanism

53.31

Of storage or retrieval information signal

53.32

Dropout indicating

53.33

Unwanted signal component indicating

53.34

Time based parameter

53.35

Signal error correcting or detecting

53.36

During storage

53.37

Initialization or start-up mode or changing system mode:

53.38

Of transducer assembly mechanism

53.39

Transducer location indicating

53.4

Positioning adjunct

53.41

Of record carrier

53.42

Having abnormality condition indicating

53.43

Of relative motion producing mechanism

53.44

Of storage or retrieval information signal

53.45

Initialization or start-up mode or changing system mode

59.1

BINARY PULSE TRAIN INFORMATION SIGNAL

59.11

Binary signal processing for controlling recording light characteristic

59.12

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

59.13

Selecting from a plurality of binary processing types

59.14

Changing a system mode

59.15

Binary signal gain processing

59.16

Within a frequency band

59.17

Binary signal level detecting using a reference signal

59.18

Plural reference signals

59.19

Binary signal detecting using a clock signal

59.2

Binary signal phase processing

59.21

Including sampling or A/D converting

59.22

By interpolating or maximum likelihood detecting

59.23

Having specific code or form generation or regeneration processing

59.24

During storage

59.25

Format arrangement processing for auxiliary information

59.26

Binary signal processing of sectioned information

59.27

Binary signal multiplexing or demultiplexing

60.01

SIGNAL PROCESSING BY STORAGE AND SUBSEQUENT RETRIEVAL (E.G., FREQUENCY SHIFT, DELAY, ETC.)

61

STORAGE OF DIRECTLY RETRIEVABLE MODULATED R.F. OR SUPERAUDIBLE CARRIER SIGNAL

62

STORAGE OF SIGNAL MODULATING COMPONENT

63

SOUND REPRODUCTION FOR TOY OR NOVELTY DEVICE (E.G., TALKING DOLL)

64

With electrical information signal processing

65

Indexing to track (e.g., consecutive)

66

By chance

67

With beginning or end of cycle stylus return

68

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

69

SYSTEMS OR SUBSYSTEMS COMBINED WITH DIVERSE ART DEVICE

70

For control of diverse art device

71

WITH STYLUS CLEANING OR TREATMENT (E.G., GRINDING)

72

WITH STORAGE MEDIUM CLEANING OR ELECTROSTATIC CHANRGE NEUTRALIZATION

73

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

74

By tone arm attachment

75.1

WITH PARTICULAR CABINET STRUCTURE

75.2

With mechanism to place disc on a turntable

76

With electrical information signal processing

77.1

Slotted for edgewise insertion of storage disc

77.2

Having disc stored in protective jacket

78

With lid-mounted transducer assembly carrier

79

With closure-operated interlock or braking actuator

80

Particular acoustical structure (e.g., baffle)

81

Having collapsible or expandable acoustic path

82

Having parallel acoustic paths

83

EDITING OF STORED INFORMATION

84

DUPLICATION OR COPYING (E.G., RERECORDING)

85

To diverse type of storage medium

86

STORAGE OR RETRIEVAL OF SPATIALLY RELATED ACOUSTIC SIGNALS (E.G., STEREO)

87

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

88

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

89

Quadraphonic

90

Including modulated subchannel signal

91

Having distinct electrical channels

92

Including distinct storage tracks on record medium

93

SYSTEMS HAVING PLURAL PHYSICALLY DISTINCT INDEPENDENT TRACKS ON A SINGLE STORAGE MEDIUM SURFACE

94

Having layered storage medium

95

Common time base (i.e., simultaneous)

96

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

97

Tracks transverse to a motion component

98

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

99

SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM

100

Radiation beam modification of or by storage medium

101

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

102

Multiplex

103

Holographic

104

Ribbon light modulator

105

Penumbra or push-pull optical system

106

Optical feedback

107

Ground noise suppression, signal envelope, or plural optical modulation

108

Color

109.01

Diffractive storage medium information element

109.02

Plural elements with distinct diffractive characteristics

110.01

Polarization of or by storage medium information element

110.02

Separation into plural polarization component beams

110.03

By diffraction

110.04

Using plural polarized or polarizing optical elements

111

Spiral or helical track

112.01

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

112.02

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

112.03

Diffractive

112.04

Plural distinct diffractive optical elements

112.05

In radiation beam path to storage medium

112.06

Sectioned optical element

112.07

Plural diffractive sections

112.08

Lens section

112.09

Prism, mirror, or waveguide section

112.1

Holographic

112.11

Sectioned optical element

112.12

Plural diffractive sections

112.13

Lens section

112.14

Prism, mirror, or waveguide section

112.15

Holographic

112.16

Polarized or polarizing

112.17

Plural distinct polarized optical elements

112.18

Sectioned optical element

112.19

Plural polarizing sections

112.2

Lens section

112.21

Prism, mirror, or waveguide section

112.22

Particular optical filter

112.23

Particular lens

112.24

Plural distinct lenses

112.25

Sectioned element

112.26

Plural lens sections

112.27

Waveguide

112.28

Prism

112.29

Mirror

113

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

114

Movable roller support for optical path

115

With driving or stabilizing mechanism

116

Light intensity adjustment or maintenance

117

Having movable shutter or light gate

118

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

119

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

120

Having particular radiation sensor

121

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

122

Solid state

123

Glow lamps

124.01

With details of electrical signal processing

124.02

With transducing multiple tracks

124.03

With transducing using plural beams

124.04

Modulating or demodulating

124.05

Integrating or sampling

124.06

Compressing or decompressing

124.07

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

124.08

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

124.09

Multiplexing or demultiplexing

124.1

Gain processing

124.11

Of retrieved signal

124.12

Of signals obtained from photo-detector components

124.13

With specific frequency or frequency range

124.14

Rate, phase, or transient processing

124.15

Level detecting using reference signal

125

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

126

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

127

Mechanical modification or sensing of storage medium

128

With electrical information signal processing

129

From information modulated oscillator

130

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

131

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

132

Recording

133

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

134

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

135

Specified structure of electrical transducing assembly

136

Multichannel (stereo cartridge)

137

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

138

With adjustable or replaceable stylus coupling structure

139

With details of damping or compliance

140

Plural styli

141

Plural alternative or with signal handling adjunct

142

Stylus controlled optical element

143

Electron tube

144

Electret or piezoelectric

145

Semiconductive

146

Magnetic field variation (e.g., magnetostrictive)

147

Moving signal coil

148

Variable reluctance

149

Fixed coil surrounding fixed part of magnetic path

150

Capacitive or electrolytic liquid

151

Electrostatic or capacitive

152

Variable resistance

153

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

154

Heating (e.g., heated stylus)

155

Mechanical conversion to or from sound

156

Including fluid coupling in force linkage

157

Sound box with mounting structure

158

Acoustical tone arm

159

Having plural acoustical paths

160

Sound box

161

With interchangeable styli

162

Including stylus pivoted from fixed casing

163

With sound modification

164

Convertible between lateral and perpendicular modulation modes

165

Perpendicular mechanical modulation

166

Recording

167

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

168

Floating weight

169

Lateral mechanical modulation

170

Stylus holder or shield

171

With structure to interchange styli

172

By replacement

173

Stylus

174

Including signal modification

175

Frequency dependent (e.g., separation)

176

DYNAMIC MECHANISM SUBSYSTEM

177

Having stationary storage medium

178.01

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

179

Cylindrical storage element

180

Flexible disc

181

Stack height adjustment for tone arm or turntable

182

Numerical count shut-off

183

Cam shaft transverse to turntable spindle axis of record changer

184

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

185

Disc size sensor on or using tone arm

186

Stepped tone arm stop element

187

Disc size sensor in feed path

188

Disc size sensor at turntable position

189

Turntable speed control

190

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

191

Storage disc fed to and removed from turntable

192

Plural disc holder having unitary separating structure

193

Grouped removal with sequential feed

194

Coplanar storage

195

Both sides of disc used

196

Separate motors operate turntable and disc change mechanism

197

Plural turntables

198

Plural tone arms

199

Both sides of disc used

200

By inverting disc

201

Discs sequentially removed from turntable

202

Discs sequentially fed to turntable

203

Tone arm set down adjustment

204

By edge controlled feeding of disc

205

With feed cooperating structure on spindle

206

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

207

Support mechanism adapter for large hole records on small hole spindles

208

Having specified spindle structure

209

Umbrella type

210

Having shoulder and ejector lever

211

With edge stabilizer

212

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

213

Additional motion of storage element support to effect tracking

214

Cylindrical storage element

215

Having power driven transducer assembly

216

Having tone arm set-down control

217

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

218

Having groove engaging driving element

219

With drive transverse to storage track during storage or retrieval

220

Controlled by transducer assembly support

221

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

222

Having pivoted tone arm

223

By lead screw

224

With passive linear tracking

225

Restoring after passive tracking

226

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

227

Numerical count replay

228

Controllable position

229

Turntable mounted template

230

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

231

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

232

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

233

Mechanism condition or storage medium responsive control

234

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

235

With stopping of motor

236

Adjustable

237

With electrical control of brake

238

End limit sensor coupled with tone arm

239

Speed

240

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

241

Self-responsive (e.g., governor)

242

Antiskating

243

Energizing circuit

244

Specific detail of transducer assembly support structure (e.g., tone arm)

245

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

246

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

247

Vibration or resonance suppression (e.g., damping)

248

By viscous damping

249

Having linear guide

250

Pivoted arm with tracking path compensation

251

Having application of counterbalancing force

252

Lateral (e.g., antiskating)

253

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

254

Specified weight mounting

255

Having specified bearing structure

256

Mechanical details of cartridge mounting

257

Rest

258

Specific detail of storage medium support or motion production

259

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

260

For cylinder

261

For pliable (e.g., floppy) disc

262

With storage medium removal adjunct

263

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

264

Turntable

265

With auxiliary turntable

266

Driving mechanism

267

Speed changing

268

Braking

269

Bearing structure

270

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

271

With detail of storage medium contact structure on turntable surface

272

STORAGE MEDIUM STRUCTURE

273

Combined with diverse art structure

274

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

275.1

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

275.2

Erasable, reversible or re-recordable

275.3

Track data format/layout

275.4

Pit/bubble/groove structure specifies

275.5

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

276

Electrical track structure

277

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

278

Groove acts as control system signal

279

Guide during storage or retrieval

280

Specific disc profile

281

With interdisc coupling

282

Specified center hole or locating structure

283

Layered (e.g., permanent protective layer)

284

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

285

With mask

286

Laminated or unified discrete layers

287

Flexible

288

Specified material

289

Adjuncts or adapters

290

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

291

Protectors

292

MISCELLANEOUS

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

FOR101

With details of electrical signal processing (369/124)

FOR103

Control of information signal channel (369/48)

FOR104

Of plural interrelated channels (369/49)

FOR105

Mechanism control by information signal (e.g., voice responsive) (369/50)

FOR106

Control of spiral track spacing (e.g., signal variable pitch) (369/51)

FOR109

With radiation storage or retrieval (369/54)

FOR110

Of transducer (369/55)

FOR111

Location on storage medium (369/56)

FOR112

Positioning adjunct (e.g., indexing) (369/57)

FOR113

Of record carrier (369/58)

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

FOR115

With diffraction (e.g., pits, grating (369/109)

FOR116

By polarization (369/110)

FOR117

With particular imaging element (369/112)

FOR120

Dictation or transcribing (369/25)

FOR121

Privacy (369/26)

FOR122

With access to or marking of specified location (e.g., indexing) (369/27)

FOR123

By stored additional signal (e.g., tone) (369/28)

FOR124

Remote station (e.g., multiple stations or recording devices) (369/29)

FOR125

Selective addressing of storage medium (e.g., programmed access, "juke box") (369/30)

FOR126

Novelty device (e.g., talking doll) (369/31)

FOR127

With specified electrical information signal processing (369/32)

FOR128

With specified electrical control signal processing (369/33)

FOR129

Plural storage medium elements (369/34)

FOR130

Plural nontranslating storage elements (e.g., in situ) (369/35)

FOR131

With unitary plural disc carrier (369/36)

FOR132

Radial array (369/37)

FOR133

Moving linear array (369/38)

FOR134

Scanning turntable (369/39)

FOR135

By manually actuated mechanism for movement of tone arm (369/40)

FOR136

Of track on single storage medium (369/41)

FOR137

By mechanical linkage (369/42)

FOR138

Access of multiple storage elements (e.g., record changer) (369/178)

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