Information Storage Based On Relative Movement Between Record Carrier And Transducer Patents (Class G9B)
- [N: with vibrating mechanical coupling means between pick-up element and sound producing element] {G11B 3/00A} (Class G9B/3.001)
- [N: Devices for transmitting, directing, amplifying sound (in general G10K11/18)] {G11B 3/00B} (Class G9B/3.003)
- [N: Devices for controlling sound e.g. using acoustical impedances, using valves] {G11B 3/00C} (Class G9B/3.006)
- [N: for digital information] {G11B 3/00D} (Class G9B/3.007)
- Arrangements of heads (styli G9B/3.076) {G11B 3/02} (Class G9B/3.008)
- Styli, e.g. sapphire, diamond {G11B 3/44} (Class G9B/3.076)
- Cleaning record carriers or styli, e.g. removing shavings or dust [N: or electrostatic charges] (brushes A46B; cleaning in general B08B) [N: carrying-off electrostatic charges in general H05F3/00] {G11B 3/58} (Class G9B/3.084)
- Turntables for record carriers (forming rotor of dynamo-electric motor H02K) [N: contains no documents, see G9B/19.028] {G11B 3/60} (Class G9B/3.095)
- Re-recording, i.e. transcribing information from one grooved record carrier on to one or more similar or dissimilar record carriers [N: (by varying the order of the information G9B/27.009, G9B/27.013)] {G11B 3/64} (Class G9B/3.097)
- Erasing information, e.g. for reuse of record carrier {G11B 3/66} (Class G9B/3.098)
- Record carriers {G11B 3/68} (Class G9B/3.099)
- Recording on, or reproducing or erasing from, magnetic drums (G9B/19 takes precedence) {G11B 5/004} (Class G9B/5.001)
- Recording on, or reproducing or erasing from, magnetic tapes, [N: sheets, e.g. cards,] or wires (G9B/15 [N: G9B/19] take precedence; [N: bulk transferring of information magnetisation for re-recording G9B/5.309; marking record carriers in digital fashion G06K)] {G11B 5/008} (Class G9B/5.002)
- Recording on, or reproducing or erasing from, magnetic discs (G9B/17, G9B/19 take precedence) {G11B 5/012} (Class G9B/5.024)
- Recording, reproducing, or erasing methods; Read, write or erase circuits therefor (timing or synchronising arrangements G9B/27.017) {G11B 5/02} (Class G9B/5.026)
- Structure or manufacture of housings or shields for heads {G11B 5/10} (Class G9B/5.034)
- Structure or manufacture of heads, e.g. inductive {G11B 5/127} (Class G9B/5.04)
- Protective measures on heads, e.g. against excessive temperature (G9B/5.077 takes precedence; protection against wear G9B/5.067) [N: protective structure of the head: see under structures, e.g. G9B/5.079] {G11B 5/40} (Class G9B/5.143)
- Cleaning of heads [N: of record carriers G9B/23.096] {G11B 5/41} (Class G9B/5.144)
- Arrangements for functional testing of heads [N: (testing of the manufacturing process G9B/5.04)]; Measuring arrangements for heads (measuring electric or magnetic properties G01R; [N: measuring properties for shaping or assembling elements G9B/5.04]) [C9511] {G11B 5/455} (Class G9B/5.145)
- Arrangements for demagnetisation of heads (demagnetisation in general H01F13/00) [C9511] {G11B 5/465} (Class G9B/5.146)
- Disposition or mounting of heads [N: or head supports] relative to record carriers [N: mounting of head within housing G9B/5.035; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed (driving of both record carriers and head G9B/15.021; guiding record carriers G9B/15.076; head selecting circuits G9B/15.016)] {G11B 5/48} (Class G9B/5.147)
- Record carriers characterised by the selection of the material (selection of magnetic materials in general H01F1/00; thin magnetic films H01F10/00) {G11B 5/62} (Class G9B/5.233)
- Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum {G11B 5/74} (Class G9B/5.289)
- Processes or apparatus specially adapted for manufacturing record carriers (processes involving a single technical art, in general, and for which provision exists elsewhere, see the relevant places, e.g. B29, C23, C25D; apparatus or processes for applying homogeneous magnetic films to substrates in general H01F41/14) {G11B 5/84} (Class G9B/5.295)
- Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers [N: (by varying the order of the information G9B/27.009, G9B/27.013)] {G11B 5/86} (Class G9B/5.308)
- Recording, reproducing or erasing systems characterised by the shape [N: or form] of the carrier [N0406] {G11B 7/002} (Class G9B/7.001)
- Recording, reproducing or erasing methods; Read, write or erase circuits therefor [N: (magneto-optical systems G9B/11.009)] [N0406] {G11B 7/004} (Class G9B/7.009)
- Arrangement of the information on the record carrier, e.g. form of tracks [N: actual track shape, (e.g. wobbled) or cross-section, (e.g. v-shaped); sequential information structures, (e.g. sectoring or header formats within a track] {G11B 7/007} (Class G9B/7.029)
- Disposition or mounting of heads or light sources relatively to record carriers {G11B 7/08} (Class G9B/7.041)
- Heads, [N: e.g. forming of spot, modulation therefor (modulating lasers H01S3/10; controlling the intensity, colour, phase, polarisation or direction of light beams arriving from an independent light source, e.g. switching gating or modulating G02F1/00; disposition or mounting of head elements within housing or with provision for moving of light source, optical beam or detector, irrelevant to the transducing method G9B/7.041)] {G11B 7/12} (Class G9B/7.097)
- Record carriers characterised by the selection of the material or by the structure or form (characterised by the arrangement of information on the carrier G9B/7.029 [N: G9B/7.039]; photosensitive materials per se G03C) {G11B 7/24} (Class G9B/7.139)
- Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers {G11B 7/28} (Class G9B/7.2)
- [N: Recording by means directly associated with the tip of a microscopic electrical probe as used in Scanning Tunneling (STM) or Atomic Force Microscopy (AFM) for inducing physical or electrical perturbations in a recording medium, the permanent effect of which being the writing of at least one information unit of a sequence disposed along a track; Reproducing such memorised information by such association of tip and means; Record carriers or media specially adapted for such transducing of information (marking using electrical current B41M5/20; investigating materials by using tunnel effect G01N27/00F; measuring irregularity of surfaces by using scanning force microscopes G01B7/34A)] {G11B 9/00A} (Class G9B/9.001)
- using ferroelectric record carriers; Record carriers therefor {G11B 9/02} (Class G9B/9.012)
- using record carriers having variable electric resistance; Record carriers therefor {G11B 9/04} (Class G9B/9.013)
- using record carriers having variable electrical capacitance; Record carriers therefor (G9B/9.012 takes precedence) {G11B 9/06} (Class G9B/9.014)
- using electrostatic charge injection; Record carriers therefor {G11B 9/08} (Class G9B/9.024)
- using electron beam; Record carriers therefor (G9B/9.024 takes precedence) [N: see provisional also G9B/11.004] {G11B 9/10} (Class G9B/9.025)
- [N: using recording by perturbation of the physical or electrical structure] {G11B 11/00A} (Class G9B/11.001)
- using recording by deforming with non-mechanical means, e.g. laser, beam of particles [N: (G9B/11.001 takes precedence; see proviosional also G9B/3.099 to G9B/3.107)] {G11B 11/03} (Class G9B/11.004)
- using recording by electric charge or by variation of electric resistance or capacitance [N: (G9B/11.001, G9B/11.008 take precedence)] {G11B 11/08} (Class G9B/11.007)
- using recording by magnetic means [N: or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field] {G11B 11/10} (Class G9B/11.008)
- using recording by optical means (G9B/11.004 takes precedence) [N: G9B/11.008 takes precedence] {G11B 11/12} (Class G9B/11.057)
- using recording by mechanical cutting, deforming or pressing [N: (G9B/11.001 takes precedence)] {G11B 11/16} (Class G9B/11.059)
- [N: Programmed access in sequence to indexed parts of tracks of operating tapes, by driving or guiding the tape (access by driving of both record carrier and head G9B/15.023; see prov. also G9B/15.077)] {G11B 15/00A} (Class G9B/15.001)
- Control of operating function, e.g. switching from recording to reproducing {G11B 15/02} (Class G9B/15.002)
- Driving; Starting; Stopping; Arrangements for control or regulation thereof [N: G9B/15.074 takes precedence; handling tapes or filamentary material in general B65H23/00] {G11B 15/18} (Class G9B/15.021)
- the record carrier having reserve loop, e.g. to minimise inertia during acceleration [N: measuring or control in connection therewith] {G11B 15/56} (Class G9B/15.074)
- Guiding record carrier (guiding devices structurally associated with magazines or cassettes G9B/23.049) {G11B 15/60} (Class G9B/15.076)
- Guiding containers [N: e.g. loading, ejecting cassettes] {G11B 15/675} (Class G9B/15.093)
- The record carrier being an endless loop record carrier [N: inside container G9B/15.032] {G11B 15/70} (Class G9B/15.155)
- [N: Programmed access to indexed parts of tracks of operating discs, by guiding the disc] {G11B 17/00A} (Class G9B/17.001)
- Details {G11B 17/02} (Class G9B/17.002)
- from consecutive-access magazine of disc records {G11B 17/08} (Class G9B/17.041)
- from random access magazine of disc records {G11B 17/22} (Class G9B/17.051)
- Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing [N: damping of vibrations of record carriers on turntables by fluid-dynamic means G9B/19.029] {G11B 17/32} (Class G9B/17.061)
- Guiding record carriers during transducing operation, e.g. for track following (G9B/17.061 takes precedence) {G11B 17/34} (Class G9B/17.062)
- [N: Time compression or expansion] {G11B 20/00C} (Class G9B/20.001)
- [N: Circuits for prevention of unauthorised reproduction or copying, e.g. piracy (indicating unauthorised use of record carriers in general G9B/23.087, television signal processing H04N5/913)] {G11B 20/00P} (Class G9B/20.002)
- [N: Circuits for stereophonic or quadraphonic recording or reproducing] {G11B 20/00S} (Class G9B/20.003)
- Analogue recording or reproducing {G11B 20/02} (Class G9B/20.004)
- Digital recording or reproducing (digital computers in which at least part of the computation is effected electrically, arrangements for handling digital data G06F; transmission of digital information H04L) {G11B 20/10} (Class G9B/20.009)
- for correction of skew for multitrack recording {G11B 20/20} (Class G9B/20.06)
- for reducing distortions {G11B 20/22} (Class G9B/20.061)
- for reducing noise [N: (control of amplification in general, e.g. dependent upon noise level H03G)] {G11B 20/24} (Class G9B/20.063)
Head arrangements not specific to the method of recording or reproducing {g11b 21/00} (Class G9B/21)
- [N: Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information, volume compression or expansion circuits per se H03G7/00] {G11B 23/00B} (Class G9B/23.001)
- [N: record carriers not specifically of filamentary or web form (G9B/23.008 takes precedence)] {G11B 23/00D} (Class G9B/23.002)
- [N: Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure (for record carriers with directly readable mechanical information G9B/3.101); record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture] {G11B 23/00M} (Class G9B/23.008)
- Containers; Storing means [N: both adapted to cooperate with the recording or reproducing means] (cabinets, cases, stands, modified to store record carriers G9B/33.006; storing webs, tapes, or filamentary material in general B65H75/00) {G11B 23/02} (Class G9B/23.014)
- providing ability to repeat location, e.g. using sprocket holes {G11B 23/14} (Class G9B/23.08)
- Record carriers with single-track for recording at spaced intervals along the track thereof, e.g. for speech or language training [N: contains no documents] {G11B 23/16} (Class G9B/23.081)
- Record carriers with multiple tracks, e.g. with complementary and partial tracks such as paired "stereo" tracks [N: contains no documents] {G11B 23/18} (Class G9B/23.082)
- with provision for splicing to provide permanent or temporary connections {G11B 23/20} (Class G9B/23.083)
- Indicating [N: or preventing] prior or unauthorized use, [N: e.g. cassettes with sealing or locking means, write-protect devices for discs (write-protect devices for tapes G9B/23.051, G9B/23.064; dummy cassettes for locking in the drive G9B/33.001)] {G11B 23/28} (Class G9B/23.087)
- with provision for auxiliary signals (sensing such signals G9B/15.008) {G11B 23/30} (Class G9B/23.088)
- Visual features other than those contained in record tracks or represented by sprocket holes [N: the visual signals being auxiliary signals] {G11B 23/38} (Class G9B/23.092)
- Reconditioning of record carriers; Cleaning of record carriers; [N: carrying-off electrostatic charges] (G9B/3.084 takes precedence; [N: carrying off electrostatic charges in general H05F3/00]) {G11B 23/50} (Class G9B/23.096)
- using cylindrical record carriers {G11B 25/02} (Class G9B/25.001)
- using flat record carriers, e.g. disc, card {G11B 25/04} (Class G9B/25.002)
- using web-form record carriers, e.g. tape {G11B 25/06} (Class G9B/25.005)
- using filamentary record carriers, e.g. wire {G11B 25/08} (Class G9B/25.008)
- Apparatus capable of using record carriers defined in more than one of the sub-groups G9B/25.001 to G9B/25.008; [N: Adaptor devices therefor] {G11B 25/10} (Class G9B/25.009)
- [N: Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof; e.g. for editing; (transfer of record carriers from magazine G9B/15.135, G9B/17.042; G9B/17.051)] {G11B 27/00A} (Class G9B/27.001)
- [N: Reproducing at a different information rate from the information rate of recording (for television signals H04N5/783)] {G11B 27/00V} (Class G9B/27.002)
- Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers (arrangements for sorting or merging computer data on continuous record carriers G06F7/22; mixing of video signals H04N5/265) {G11B 27/02} (Class G9B/27.004)
- Indexing; Addressing; Timing or synchronising; Measuring tape travel {G11B 27/10} (Class G9B/27.017)
- Monitoring, i.e. supervising the progress of recording or reproducing [N: for digital recording G9B/20 and s.gr.; for monitoring, testing or measuring of TV recorders of the type covered by H04N5/76 and subgroups, see H04N17/06] {G11B 27/36} (Class G9B/27.052)
- [N: Means for locking the disc or cassette receiving slot, e.g. dummy cassettes locked in the slot] {G11B 33/00L} (Class G9B/33.001)
- Cabinets; Cases; Stands; Disposition of apparatus therein or thereon (furniture aspects A47B, e.g. A47B81/06; [N: showing stands, hangers or shelves adapted for particular articles A47F7/00; albums for record carriers, e.g. discs B42F5/00B; suspended filing appliances for record carriers, e.g. discs B42F15/00B; fastening devices for wings, e.g. covers E05C; for holding wings in one or more opened positions E05C17/00; hinges E05D; closers or openers of wings, e.g. with braking or counter-balancing devices E05F]) {G11B 33/02} (Class G9B/33.002)
- Indicating arrangements; Warning arrangements [N: (G9B/15.006, G9B/19.005, G9B/27.051, G9B/27.052 take precedence)] {G11B 33/10} (Class G9B/33.025)
- Disposition of constructional parts in the apparatus, e.g. of power supply, of modules {G11B 33/12} (Class G9B/33.026)
- Reducing influence of physical parameters, e.g. temperature change, moisture, dust {G11B 33/14} (Class G9B/33.035)
