What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
Enter a class/subclass code here to get a list of patent titles. Use
any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any
subclass letters capitalized. Currently Design Patent titles (those in the
classes of the form Dxx.yy) are not retreivable.
Class Number: 369 Class Title: DYNAMIC INFORMATION STORAGE OR RETRIEVAL Subclass Subclass Number Title 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 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 CLASS 369 AS SHOWN..* * *BY THE POSITION OF THIS BOX.* * ****************************** 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 TRACKK 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 SIGNAL PROCESSING BY STORAGE AND SUBSEQUENT RETRIEVAL (E.G.,, FREQUENCY SHIFT, DELAY) 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 feedbackk 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 ..With details of electrical signal procesing 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., storagee 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 smalll 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 productionn 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