Manual of U.S. Patent Classification
as of June 30, 2000

Class
369
DYNAMIC INFORMATION STORAGE OR RETRIEVAL

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

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Subclass		Title
ClassTitle		===> DYNAMIC INFORMATION STORAGE OR RETRIEVAL
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
300		DETAIL OF OPTICAL SLIDER PER SE
13		STORAGE DIFFERENT FROM RETRIEVAL (E.G., OPTICAL RECORDING AND MAGNETIC REPRODUCTION)
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		OPERATOR-ACTUATED REMOTE CONTROL OR INFORMATION LOCATION
25		. Dictation or transcribing
26		. . Privacy
27		. . With access to or marking of specified location (e.g., indexing)
28		. . . By stored additional signal (e.g., tone)
29		. . Remote station (e.g., multiple stations or recording devices)
30		. Selective addressing of storage medium (e.g., programmed access, "juke box")
31		. . Novelty device (e.g., talking doll)
32		. . With specified electrical information signal processing
33		. . With specified electrical control signal processing
34		. . . Plural storage medium elements
35		. . Plural nontranslating storage elements (e.g., in situ)
36		. . With unitary plural disc carrier
37		. . . Radial array
38		. . . Moving linear array
39		. . . Scanning turntable
40		. . By manually actuated mechanism for movement of tone arm
41		. . Of track on single storage medium
42		. 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 disk 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		CONTROL OF STORAGE OR RETRIEVAL BY A SIGNAL TO BE RECORDED OR REPRODUCED (E.G., PILOT OR CONTROL SIGNAL)
48		. Control of information signal channel
49		. . Of plural interrelated channels
50		. Mechanism control by information signal (e.g., voice responsive)
51		. . Control of spiral track spacing (e.g., signal variable pitch)
52		CONTROL STRUCTURE ON STORAGE MEDIUM SENSED BY OTHER THAN TRANSDUCER SUPPORT (E.G., CONDUCTIVE STRIP, NOTCHED EDGE SENSOR)
53		WITH CONDITION INDICATING (E.G., MONITORING) OR TESTING
54		. With radiation storage or retrieval
55		. Of transducer
56		. . Location on storage medium
57		. . Positioning adjunct (e.g., indexing)
58		. Of record carrier
59		WITH BINARY PULSE TRAIN INFORMATION SIGNAL
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		. . With diffraction (e.g., pits, grating)
110		. . By polarization
111		. . Spiral or helical track
112		. . With particular imaging element
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		. 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
		*********************************
		FOREIGN ART COLLECTIONS
		*********************************
		Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collection listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
FOR 100		SIGNAL PROCESSING BY STORAGE AND SUBSEQUENT RETRIEVAL (E.G., FREQUENCY SHIFT, DELAY, ETC.) (369/60)
		SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM (369/99)
		. Radiation beam modification of or by storage medium (369/100)
FOR 101		. . With details of electrical signal processing (369/124)

Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

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Last Modified: 6 October 2000