| Class 379 | TELEPHONIC COMMUNICATIONS |
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![[List of Pre Grant Publications for class 379 subclass 1.01]](../as.gif) | ![[List of Patents for class 379 subclass 1.01]](../ps.gif) | 1.01 | DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT |
| | 1.02 |  Of audio message storage and retrieval |
| | 1.03 | Of data transmission |
| | 2 | Including fault responsive disconnection of tested component |
| | 3 | Of hybrid or echo suppressor or canceller |
| | 4 | Of repeater |
| | 7 | For detection of eavesdropping device |
| | 8 | With blocking of normal usage |
| | 9 | Of centralized switching system |
| | 9.01 |  Software compatibility |
| | 9.02 | Maintenance console |
| | 9.03 | Trouble ticket reporting |
| | 9.04 | Record or report generation |
| | 9.05 | Backup system |
| | 9.06 | Of line interface circuitry |
| | 14 | Of plural exchange network |
| | 10.01 | By automatic testing sequence |
| | 12 | With dedicated testing line or trunk |
| | 13 | Of call timing or charging equiment |
| | 15.01 | Of switching equipment or network element |
| | 15.02 |  Advanced intelligent network (AIN) |
| | 16 | Of switching path |
| | 17 | Of switching selector |
| | 18 | By use of call address signal |
| | 19 | Rapid manual connecting structure for test equipment |
| | 20 | Of switchboard element condition (e.g., lamp) |
| | 21 | Using portable test set (e.g., handset type) |
| | 22 | Of trunk or long line |
| | 22.01 | By loopback |
| | 22.02 | By analysis of injected tone signal |
| | 22.03 | Fault detection or fault location on telephone link (e.g., continuity, leakage) |
| | 22.04 | Of digital loop carrier |
| | 22.06 | Having special connector |
| | 22.07 | Telephone multiconducting wires (e.g., tip, ring and ground wires) |
| | 22.08 | Noise |
| | 23 | Of line signalling |
| | 24 | Electrical parameter measurement (e.g., attenuation) |
| | 25 | Conductor identification or location |
| | 26.01 | Testing of network terminating interface, subscriber trunk interface, or service function |
| | 27.01 | Testing of subscriber loop or terminal |
| | 27.02 | By generating call signal |
| | 27.03 | By analysis of testing signal |
| | 27.04 | By automatic testing sequence (e.g., programmable, test, script or test call generation program) |
| | 27.05 | Having protection circuit (e.g., surge or short circuit protector) |
| | 27.06 | Having electromechanical switch or relay |
| | 27.07 | Having plugging maintenance or test module |
| | 27.08 | Including sampling measurement technique |
| | 28 | Of data transmission instrument |
| | 29.01 | Terminal arrangement to enable remote testing (e.g., testing interface) |
| | 29.02 | By simulator (e.g., computer simulates testing personnel) |
| | 29.03 | Voltage or current determination |
| | 29.04 | Voltage or current detector |
| | 29.05 | Metallic loop testing |
| | 29.06 | By dialing back the calling terminal |
| | 29.07 | For a fault caused by an off-hook status |
| | 29.08 | For a fault caused by new added service or equipment (e.g., software compatible) |
| | 29.09 | With historical operating information database |
| | 29.1 | Visual output (e.g., printing, displaying) |
| | 29.11 | Having telephone maintenance termination unit (e.g., MTU) |
| | 30 | Loop impedance (e.g., resistance, capacitance) |
| | 31 | Of line signalling generator (e.g., dial, tone code generator) |
| | 32.01 | Monitoring |
| | 36 | FREE CALLING FROM PAYSTATION |
| | 37 | EMERGENCY OR ALARM COMMUNICATIONS (E.G., WATCHMAN'S CIRCUIT) |
| | 38 | Personal monitoring (e.g., for the ill or infirm) |
| | 39 | Responsive to sensed nonsystem condition |
| | 40 | Automatic dialing |
| | 41 | Transmission of recorded audio message |
| | 42 | Plural conditions |
| | 43 | Fire |
| | 44 | Intrusion |
| | 45 | Central office responsive to emergency call or alarm (e.g., "911", operator position display) |
| | 46 | Called line or station condition responsive (e.g., recall if busy) |
| | 47 | Plural alarms over single line |
| | 48 | Announcement or alarm received at terminal station (e.g., "butt-in", alarm) |
| | 49 | Central station with plural substations |
| | 50 | By pulse or digital signal |
| | 51 | With automatic dialing or transmission of recorded audio message |
| | 52 | INCLUDING AID FOR HANDICAPPED USER (E.G., VISUAL, TACTILE, HEARING AID COUPLING) |
| | 55.1 | HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE) |
| | 56.1 | HAVING LIGHT WAVE OR ULTRASONIC LINK FOR SPEECH OR PAGING SIGNAL |
| | 56.2 | Including fiber optic link within telephone network |
| | 56.3 | Including infra-red link with landline telephone network |
| | 67.1 | AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS |
| | 68 | Dynamic audio signal recording or reproduction |
| | 69 | Call originating |
| | 70 | Call intercept or answering |
| | 71 | Consecutive use of recorded phrases or words to form message |
| | 72 | Sequential or repeated announcement during single call initiated cycle |
| | 73 | Plural record carrier channels |
| | 74 | Remote control over telephone line |
| | 78 | Acoustic coupling |
| | 79 | With specified call initiated cycle control circuitry |
| | 80 |  Voice signal presence responsive |
| | 81 | Call termination responsive (e.g., hang-up) |
| | 82 | Having specified call initiation (e.g., ringing) responsive circuitry |
| | 83 | Structural detail of storage medium drive |
| | 84 | At switching facility (e.g., central office, switchboard) |
| | 85 | Recording of telephone signal during normal operation |
| | 87 | Reproduced signal distributed over telephone line |
| | 88.01 | Voice activation or recognition |
| | 88.02 | Voice verification (e.g., voice authorization, voiceprint, etc.) |
| | 88.03 | Voice dialing |
| | 88.04 | Voice controlled message management |
| | 88.05 | Multilingual system or operation |
| | 88.07 | Digital signal processing (DSP) |
| | 88.08 | Message signal analysis |
| | 88.09 | Statistical analysis (e.g., time, date, length of message, etc.) |
| | 88.1 | Including data compression |
| | 88.11 | Display of message related information |
| | 88.12 | Indication or notification of message |
| | 88.13 | Multimedia system (e.g., voice output combined with fax, video, text, etc.) |
| | 88.16 | Voice message synthesis |
| | 88.17 | Interaction with an external nontelephone network (e.g., Internet) |
| | 88.18 | Interacting voice message systems |
| | 88.19 | Call source identification |
| | 88.22 | Message management |
| | 90.01 | TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) |
| | 91.01 | Credit authorization |
| | 92.01 | Polling |
| | 93.01 | Having transmission of a digital message signal over a telephone line |
| | 93.02 | Access restricting |
| | 93.05 | Terminal interface circuitry |
| | 93.08 | Transmission scheme (e.g., compression/decompression, transmission rate) |
| | 93.09 | Switching between different terminal types (e.g., voice/data switch) |
| | 93.12 | Sales, ordering, or banking system |
| | 93.13 | Amusement (e.g., game, lottery) |
| | 93.14 | Having switching station |
| | 93.17 | Having station display |
| | 93.18 | Having tone code recognition for generating alphanumeric characters |
| | 93.19 | Having pressure or position sensitive surface (e.g., touch-screen, light pen) |
| | 93.21 | Having conferencing |
| | 93.22 | At pay station |
| | 93.23 | Having user information display (e.g., telephone number, name, address, etc.) |
| | 93.24 | Having electronic mail |
| | 93.25 | Having remote database (e.g., videotex system) |
| | 93.26 | By voice frequency signal (e.g., tone code) |
| | 100.01 | To produce visual-graphic copy (e.g., facsimile) |
| | 100.02 | Having detachable device (e.g., detachable storage medium, scanner) |
| | 100.03 | Usage system |
| | 100.04 | Communication charge calculation |
| | 100.05 | Monitoring |
| | 100.06 | Communication status notification |
| | 100.07 | Using mark sheet |
| | 100.08 | Electronic mailbox |
| | 100.09 | Relay system |
| | 100.11 | From a library |
| | 100.12 | Connection to plural networks or lines |
| | 100.13 | Format conversion |
| | 100.14 | Call signal generation (e.g., auto-dial) |
| | 100.15 | Having switching to other communication modes |
| | 100.17 | Transmission scheme |
| | 101.01 | Audio program distribution |
| | 102.01 | Remote control |
| | 102.02 | Communication device |
| | 102.05 | Of heating, ventilation, air conditioner (e.g., HVAC) |
| | 102.06 | Of physical entrance or exit lock |
| | 102.07 | Having indication |
| | 106.01 | Remote indication over telephone line (e.g., telemetry) |
| | 106.02 | Patient monitoring |
| | 106.03 | Meter reading |
| | 106.04 | Having power supply circuitry |
| | 106.05 | Having ringing suppression |
| | 106.06 | Having time window |
| | 106.07 | Having interrogation signal |
| | 106.08 | Having line status detection |
| | 106.09 | Ringing suppression |
| | 106.11 | Interrogation signal |
| | 108.01 | Telegraphy |
| | 110.01 | COMPOSITE SUBSTATION OR TERMINAL (E.G., HAVING CALCULATOR, RADIO) |
| | 111 | WITH USAGE MEASUREMENT (E.G., CALL OR TRAFFIC REGISTER) |
| | 112.01 | Call traffic recording by computer or control processor |
| | 112.02 | Redundant processor or backup processor |
| | 112.03 | Estimating blocking probability |
| | 112.04 | Threshold or limiting control (e.g., gapping control) |
| | 112.05 | Optimization network configuration |
| | 112.06 | Generalized statistics about telephone network usage |
| | 114.01 | Call charge metering or monitoring |
| | 114.02 | Least cost |
| | 114.03 | Billing computing software or program |
| | 114.04 | Charge error detection |
| | 114.05 | Special service fees (e.g., customized feature) |
| | 114.06 | Variable rate |
| | 114.1 | Incentive billing |
| | 114.14 | Fraud detection or control |
| | 114.15 | Calling card |
| | 114.16 | Recharging or replenishing an account or calling card |
| | 114.17 | Monitoring account or card usage balance |
| | 114.18 | Having complementary item (e.g., novelty) |
| | 114.19 | Credit card |
| | 114.2 | Pre-paid calling account or card |
| | 114.21 | Redirect billing |
| | 114.22 | Split billing or cost sharing |
| | 114.23 | Third party billing |
| | 114.24 | 1-800 billing |
| | 114.25 | 1-900 billing |
| | 114.26 | Based on unique account code |
| | 114.27 | Portable number billing |
| | 114.28 | Advanced intelligent billing network (e.g., a billing service control processor) |
| | 115.01 | Interexchange billing operation |
| | 115.02 | Long distance billing |
| | 115.03 | Interfacing with foreign exchange |
| | 116 | Hardcopy record generating |
| | 117 | Of station on polystation or party line |
| | 119 | Hardcopy record generating (e.g., ticket printing) |
| | 121.01 | At local exchange carrier (e.g., central switching office) |
| | 121.02 | Discount charge rate or billing plan |
| | 121.03 | Multiple billing account |
| | 121.04 | Detail of call history and rates database |
| | 121.06 | Having network terminating point receiving registration from subscriber terminal |
| | 122 | With display |
| | 123 | Paystation (e.g., escrow control) |
| | 124 | Pulse counting or accumulating (e.g., "message metering") |
| | 125 | Local or zone |
| | 126 | Assembling billing record (e.g., automatic message account (AMA), call detail record (CDR), etc.) |
| | 127.01 |  Having line identification associated with call billing (e.g., automatic number identification (ANI) |
| | 128 | Time of day controlled |
| | 129 | Manually set (e.g., key and lock) |
| | 130 | At subscriber station |
| | 133 | Call traffic recording or monitoring |
| | 142.01 | RECEPTION OF CALLING INFORMATION AT SUBSTATION IN WIRELINE COMMUNICATIONS SYSTEM |
| | 142.02 | Blocking caller ID transmission |
| | 142.04 | Extracting call ID from transmitted signal |
| | 142.05 | Authentication or authorization |
| | 142.06 | Matching and retrieving stored caller ID information from a database |
| | 142.07 | Routing an incoming call on multiple lines to a particular appliance (e.g., facsimile, computer, or telephone) |
| | 142.08 | Call waiting associated with caller ID information |
| | 142.09 | Non-assigned telephone number indication |
| | 142.1 | Caller location indication (e.g., city, state, etc.) |
| | 142.11 | Caller local time indication |
| | 142.12 | Including master-slave modules, parent-child terminals, or controller-adjunct units |
| | 142.13 | Adaptive module coupled to telephone line or telephone device |
| | 142.15 | Connecting to an external information processing terminal (e.g., computer) |
| | 142.16 | Having broadband premise equipment (e.g., TV) |
| | 142.17 | Having display unit |
| | 142.18 | Including DTMF signal |
| | 143 | WITH CHECK OPERATED CONTROL (E.G., PAYSTATION) |
| | 144.01 | Other than coin |
| | 144.02 | Collect calling from payphone |
| | 144.03 | Fraud detection in payphone |
| | 144.04 | Card reader |
| | 144.05 | Payphone service associated or integrated with other communication device (e.g., computer, fax, etc.) |
| | 144.06 | Special circuitry for processing accounting data |
| | 144.07 | Information message notification at paystation |
| | 145 | Fraud or interference prevention |
| | 146 | Coin signalling or control |
| | 147 | Coin box audit or totalizer |
| | 148 | Denomination |
| | 149 | Post-pay coin collection |
| | 150 | Coin disposition (i.e., return or collection) |
| | 154 | At central office |
| | 155 | At terminal station (e.g., coin paystation) |
| | 156 | MULTI-LINE OR KEY SUBSTATION SYSTEM WITH SELECTIVE SWITCHING AND CENTRAL SWITCHING OFFICE CONNECTION |
| | 157 | With special service |
| | 159 | With intercom system |
| | 161 | With exclusion or priority feature (e.g., lockout or privacy) |
| | 162 | Detail of hold circuitry |
| | 164 | Line status indication or call alerting |
| | 165 | Switching or supervision feature (e.g., common control, digital) |
| | 166 | Detail of line circuit or line card |
| | 167.01 | PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM |
| | 167.02 | At collective house |
| | 167.03 | At booth (e.g., at theater, gas station, etc.) |
| | 167.05 | Doorbell system |
| | 167.06 | Having access code |
| | 167.07 | Having remote controlling station (e.g., gate guard or attendant) |
| | 167.08 | Call addressing or announcing |
| | 167.11 | Having connection to telephone line |
| | 167.12 | Having display |
| | 167.13 | Having telephone adaptor system |
| | 167.14 | Two-way voice channel |
| | 167.15 | Having transducer circuitry |
| | 168 | Lockout |
| | 170 | With paging |
| | 171 | Having plural stations with selective calling (e.g., master) |
| | 173 | With call addressing |
| | 174 | Including body or apparel supported terminal (e.g., headgear) |
| | 176 | With central power source |
| | 177 | POLYSTATION LINE SYSTEM (I.E., PARTY LINE) |
| | 178 | Revertive call |
| | 179 | Call alerting (e.g., ringing) |
| | 182 | Automatic or unattended |
| | 185 | Portable or mobile |
| | 186 | Central power source |
| | 187 | Connected to central office |
| | 188 | CALL OR TERMINAL ACCESS ALARM OR CONTROL |
| | 189 | Fraud or improper use mitigating or indication (e.g., "blue box", "black box") |
| | 190 | Time out |
| | 194 | Lockout or double use signalling |
| | 196 | At switching center |
| | 199 | At substation |
| | 201.01 | SPECIAL SERVICES |
| | 201.02 | Service profile (e.g., calling service) |
| | 201.03 | Creation of service (e.g., using object oriented programming, primitive, function) |
| | 201.04 | Display arrangement |
| | 201.05 | Distribution of service (e.g., downloading, uploading) |
| | 201.06 | Locating using diverse technology (e.g., using infrared badge, sensor, card reader) |
| | 201.07 | Called party |
| | 201.08 | Calling party |
| | 201.09 | Object |
| | 201.1 | Detecting presence or absence of party or object |
| | 201.11 | Anonymous party (e.g., protection of called or calling party's identity, privacy) |
| | 201.12 | Provisioning |
| | 202.01 | Conferencing |
| | 207.01 | Three-way calling |
| | 207.02 | Service trigger (activation or deactivation) |
| | 207.03 | Time (e.g., time of day, expiration of time period, time zone, date) |
| | 207.04 | Line or loop condition |
| | 207.05 | Busy signal (e.g., off hook) |
| | 207.06 | Transition from off-hook to on-hook (e.g., busy to idle, hook flash) |
| | 207.07 | Transition from on-hook to off-hook (e.g., idle to busy) |
| | 207.08 | No answer (e.g., ringing signal, on-hook, idle) |
| | 207.11 | Service access code |
| | 207.12 | Party location |
| | 207.13 | Party identification or validation (e.g., personal identification number (PIN)) |
| | 207.14 | Dialed number identification service (DNIS) |
| | 207.15 | Automatic number identification or calling number identification (ANI or CLID) |
| | 207.16 | Ringing signal (e.g. having a predetermined cadence or distinctive ring) |
| | 208.01 | Priority override (e.g., butt-in) |
| | 209.01 | Repetitive call attempts (e.g., camp-on-busy, retry) |
| | 210.01 | Reserved call (e.g., return call, call back, scheduled call, reestablished call) |
| | 210.02 | Call blocking |
| | 211.01 | Call diversion (e.g., call capture) |
| | 211.02 | Call forwarding |
| | 212.01 | Call transfer |
| | 213.01 | Intercept (e.g., dead or changed number) |
| | 214.01 | Secretarial or answering service |
| | 215.01 | Call Waiting |
| | 216.01 | Abbreviated dialing or direct call (e.g., hot line) |
| | 217.01 | Audible paging |
| | 218.01 | Automatic directory service (e.g., on-line) |
| | 218.02 | Performed by operator (e.g., butt-in, busy verification) |
| | 219 | PLURAL EXCHANGE NETWORK OR INTERCONNECTION |
| | 220.01 | With interexchange network routing |
| | 221.01 | Alternate routing |
| | 221.02 | Service provider selection (e.g., local or long distance, primary and alternate carriers) |
| | 221.03 | Failure (e.g., disaster, overload, blockage) |
| | 221.05 | Based upon historical data |
| | 221.06 | Algorithm (e.g., software, computer program) |
| | 221.08 | Advanced intelligent network (AIN) |
| | 221.09 | Service control point (SCP, ISCP, external database) |
| | 221.1 | Signal transfer point (STP, ISTP) |
| | 221.11 | Adjunct or intelligent peripheral (IP) |
| | 221.12 | Service switching point (SSP) |
| | 221.13 | Local number portability (LNP) |
| | 221.14 | Routing parameter (e.g., area code, address, service provider identifier) |
| | 221.15 | Connection call model (e.g., virtual network, displayed models) |
| | 222 | Toll center |
| | 224 | Tandem switching center |
| | 225 | Multi-PBX interconnection |
| | 226 | Having a manual exchange |
| | 229 | Interexchange signalling |
| | 242 | CENTRALIZED SWITCHING SYSTEM |
| | 243 | Class of service determination or transmission |
| | 245 | Identification |
| | 250 | Four-wire switching |
| | 251 | With generating of call associated substation signal |
| | 252 | For alerting signal at called station (e.g., ringing) |
| | 256 | Having automatic or through ringing |
| | 257 | For calling station (e.g., status or progress tones) |
| | 265.01 | Call distribution to operator |
| | 265.02 | Automatic call distributor (ACD) system |
| | 265.03 | Reporting status (e.g., supervisory reporting) |
| | 265.04 | Log-on or log-off of agent |
| | 265.05 | Agent assignment (e.g., allocation of agent's time to a specific task) |
| | 265.06 | Monitoring agent performance (e.g., quality of agent's performance) |
| | 265.09 | Having a multimedia feature (e.g., connected to Internet, E-mail, etc.) |
| | 265.1 | Predictive (e.g., anticipating next available agent) |
| | 265.11 | Routing to available agent |
| | 265.12 | Based on agent's skill (e.g., language spoken by agent) |
| | 265.13 | Based on type of call |
| | 265.14 | Based on time (e.g., longest waiting agent) |
| | 266.01 | Call or agent queuing |
| | 266.02 | Based on type of call |
| | 266.03 | Based on time (e.g., age of queued call, time of day, date) |
| | 266.04 | Overflow (e.g., queue-to-queue, ACD-to-ACD) |
| | 266.05 | Split |
| | 266.06 | Estimating or reporting waiting time |
| | 266.07 | Call campaign (e.g., script, application, inbound/outbound balancing) |
| | 266.09 | Home agent |
| | 266.1 | Call record |
| | 258 | Switching controlled in response to called station addressing signal |
| | 259 | Including deflected electron beam switching device or mechanical or optical switching control (e.g., fluidic) |
| | 260 | With operator position or completion of call (e.g., dial "O", semiautomatic) |
| | 268 | Having shared or common switching control |
| | 269 | Distributed control |
| | 270 | In-stage or interstage scanning (e.g., link scanning) |
| | 271 | Having multistage switching |
| | 272 | Path selection or routing |
| | 278 | Interstage junctor or "trunk" |
| | 279 | Control reliability (e.g., redundancy) |
| | 280 | Including registering or storing device for call address signal |
| | 281 | Conversion between dial pulse and voice frequency signal |
| | 282 | Voice frequency receiver |
| | 284 | With processor |
| | 285 | With magnetic memory |
| | 286 | Signal processing (e.g., dial pulse analysis) |
| | 287 | Electronic |
| | 288 | Register-sender |
| | 289 | Translator |
| | 290 | With time division of control or supervisory signals |
| | 291 | With detail of crosspoint switching structure (e.g., crossbar) |
| | 293 | Having line finder |
| | 296 | With repeater |
| | 297 | Having specified busy-idle test |
| | 298 | Direct control |
| | 299 | Step-by-step system |
| | 300 | Having plural wiper sets |
| | 301 | Having potential control |
| | 302 | Having rotary switch |
| | 303 | Coordinate system (e.g., X-Y) |
| | 304 | All relay type |
| | 305 | Having motor-driven switch |
| | 306 | With crosspoint switch detail |
| | 307 | With power supply |
| | 308 | Switching apparatus for connecting calling line to operator's position |
| | 310 | Divided central (e.g., communication between switchboards) |
| | 312 | Having multiple answering jacks for multiplied line |
| | 313 | Multiple section switchboard |
| | 315 | With line-signal control |
| | 319 | Single switchboard (e.g., cord circuit) |
| | 322 | Power supply |
| | 325 | Structure of equipment |
| | 331 | Having protective circuit |
| | 332 | Plug and socket |
| | 333 | CONCENTRATOR OR TRUNK SELECTOR |
| | 334 | Concentrator-distributor pair (e.g., line concentrator) |
| | 335 | Using crossbar or crosspoint switching |
| | 336 | With magnet, electromagnet, or relay |
| | 337 | With busy-idle test (e.g., idle trunk finder) |
| | 338 | REPEATER (E.G., VOICE FREQUENCY) |
| | 339 | With signal conversion (e.g., dial to DTMF, analog to PCM) |
| | 340 | Having line length compensation or equalization |
| | 341 | Pulse or tone repeater (e.g., electromechanical relay) |
| | 343 | Controlled by a pilot or reference signal |
| | 344 | Component processes bidirectional signals |
| | 346 | With frequency discriminator or negative impedance element |
| | 347 | With gain or attenuation control |
| | 348 | Transmission of power to distant repeater |
| | 349 | Having voice frequency transformer |
| | 406.01 | ECHO CANCELLATION OR SUPPRESSION |
| | 406.02 | Combined diverse function |
| | 406.04 | Disable or inhibit function |
| | 406.05 | Residual echo cancellation |
| | 406.06 | Using digital signal processing |
| | 406.07 | Using attenuator |
| | 406.08 | Adaptive filtering |
| | 406.11 | Convolution processing |
| | 406.12 | Frequency domain analysis |
| | 406.15 | Additional analog processing |
| | 406.16 | Having analog variolosser or attenuator |
| | 350 | SUPERVISORY OR CONTROL LINE SIGNALING |
| | 351 | Signalling integrity protection (e.g., voice signal immunity) |
| | 352 | Substation originated |
| | 353 | Conversion of signal form |
| | 354 | With called number display |
| | 355.01 | Repertory or abbreviated call signal generation |
| | 355.02 | Call address signal stored in terminal |
| | 355.04 | Call address signal stored in network |
| | 355.05 | Modification of call address signal for abbreviated dialing |
| | 355.06 | Modification by other than key input |
| | 355.07 | Including modification of indicia associated with a call address |
| | 355.08 | Including prefix in the call address signal |
| | 355.09 | Selection of registered call address signal |
| | 356.01 | Including dynamic memory |
| | 357.01 | Insertable control element or circuitry (e.g., card) |
| | 357.03 | Acoustical generation |
| | 357.04 | Circuitry of call signal generator |
| | 357.05 | Including solid state memory storage |
| | 358 | By motor driven dial rotating device |
| | 359 | Pulse signal generating (e.g., dialing) |
| | 360 | Voice frequency band signalling (e.g., reed devices) |
| | 362 | Pulse signal generator (e.g., rotary dial) |
| | 363 | Control of motor driven dial rotating device |
| | 364 | With nonrotary actuator (e.g., key or slide type) |
| | 365 | Specified switching contact (e.g., contact spring) |
| | 366 | With detail of dial return mechanism (e.g., driving spring, speed governor) |
| | 367 | Finger wheel or mechanical adjunct (e.g., finger stop) |
| | 368 | Plural-switch number input device (e.g., keypad) |
| | 369 | Detail of mounting of switch pad or dial |
| | 371 | Magneto signalling |
| | 372 | Signal reception at substation |
| | 373.01 | Incoming call alerting |
| | 373.02 | Distinctive or selective alerting |
| | 373.03 | Registration of alerting signal in association with incoming signal |
| | 373.05 | Directing incoming call to local appliance |
| | 374.01 | Including musical sound generation |
| | 374.02 | Including audible message generation |
| | 374.03 | Alerting by other than sight or sound (e.g., vibration) |
| | 375.01 | Having electronic call sounder (e.g., tone "ringer") |
| | 376.01 | Visual indication of incoming call (e.g., LED or light bulb) |
| | 376.02 | Silencing ring signal |
| | 377 | Using line or loop condition detection (e.g., line circuit) |
| | 378 | With current controlling electromagnetic core device (e.g., Hall-effect device) |
| | 379 | With optical link between line and switching system |
| | 380 | By bridge circuit |
| | 381 | Busy test or make busy |
| | 382 | For ring trip or polarity reversal detection |
| | 383 | Of plural lines |
| | 385 | Relayless |
| | 386 | Signal receiver (e.g., tone decoder) |
| | 387.01 | SUBSTATION OR TERMINAL CIRCUITRY |
| | 387.02 | Conversion of signal form (e.g., A/D, frequency or phase) |
| | 388.01 | For loudspeaking terminal |
| | 388.02 | Speakerphone with build-in microphone |
| | 388.04 | Voice control of transmission direction |
| | 388.05 | Voice switching by attenuation/amplification |
| | 388.06 | Comparing signal level of receiving and transmitting circuits |
| | 388.07 | Controlling acoustic feedback |
| | 390.01 | Amplification or attenuation level control |
| | 391 | Sidetone control or hybrid circuit (e.g., induction coil) |
| | 392.01 | Noise suppression |
| | 393 | Hold circuit |
| | 394 | Impedance matching or line equalizing |
| | 395 | Amplifying (e.g., AGC or AVC) |
| | 395.01 | Power control or detection circuit |
| | 396 | Visual signalling (e.g., lamp) |
| | 397 | Wire distribution |
| | 398 | LINE EQUALIZATION OR IMPEDANCE MATCHING |
| | 399.01 | SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE |
| | 399.02 | Circuitry to provide a coder and decoder function |
| | 400 | For line length compensation |
| | 402 | Hybrid circuit |
| | 412 | Protective circuit |
| | 413 | Power supply (e.g., battery feed) |
| | 413.02 | Network interface device (NLD) |
| | 414 | TRANSMISSION LINE CONDITIONING |
| | 418 | CALL SIGNAL GENERATING (E.G., RINGING OR TONE GENERATOR) |
| | 419 | TERMINAL |
| | 420.01 | Having loudspeaking conversation capability (e.g., hands- free type or speakerphone) |
| | 420.02 | Hands-free loudspeaker feature |
| | 420.03 | Hands-free microphone feature |
| | 420.04 | Hands-free accesory or attachment |
| | 421 | Having muting |
| | 422 | Switch or switch actuator structure |
| | 428.01 | Housing or housing component |
| | 428.02 | Handset or headset combined with telephone base |
| | 428.03 | Display on telephone base |
| | 428.04 | Base having detachable accessory |
| | 429 | Having distinct circuitry support structure (e.g., circuit board) |
| | 430 | Body supported (e.g., headgear) |
| | 431 | Separate housings for earphone and microphone (e.g., candlestick type) |
| | 433.01 | Handset structure |
| | 433.02 | Speaker mounting (i.e., speaker phone feature) |
| | 433.03 | Microphone mounting |
| | 433.04 | Display on handset |
| | 433.05 | Connector |
| | 433.06 | Button or switch having specific function |
| | 433.08 | Battery |
| | 433.09 | Card (e.g., SIM or magnetic strip card) |
| | 433.1 | Handset having special feature (e.g., wrist watch) |
| | 433.11 | Moveable or removeable element (e.g., cover) |
| | 432 | Loudspeaking set |
| | 434 | Specified terminal configuration (e.g., novelty type) |
| | 435 | Wall set or convertible type |
| | 436 | Desk set |
| | 437 | Protective structure |
| | 440 | Casing or enclosure, per se |
| | 441 | TERMINAL ACCESSORY OR AUXILIARY EQUIPMENT |
| | 442 | With circuit connection to terminal |
| | 443 | Including coupler (e.g., inductive) |
| | 445 | Locking device |
| | 446 | Telephone receiver support |
| | 447 | Attachable to terminal housing |
| | 451 | Protective structure |
| | 453 | Hood or enclosure (e.g., booth) |
| | 454 | Support or stand |
| | 456 | Dialing tool |
| | 457 | MISCELLANEOUS |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 900 | INTERNET (E.G., INTERNET PHONE, WEBPHONE, INTERNET-BASED TELEPHONY) |
| | 901 | VIRTUAL NETWORKS OR VIRTUAL PRIVATE NETWORKS |
| | 902 | AUTO-SWITCH FOR AN INCOMING VOICE DATA, OR FAX TELEPHONE CALL (E.G., COMP/FAX/TEL) |
| | 903 | PASSWORD |
| | 904 | AUTO-CALLING |
| | 905 | FAX MAIL |
| | 906 | TOUCHTONE MESSAGE TRANSMISSION |
| | 907 | SPEECH RECOGNITION VIA TELEPHONE SYSTEM OR COMPONENT |
| | 908 | MULTIMEDIA |
| | 909 | ALTERNATIVES |
| | 910 | BAR CODE OR OPTICAL CHARACTER READER WITH TELEPHONE |
| | 911 | DISTINCTIVE RINGING |
| | 912 | GEOGRAPHICALLY ADAPTIVE |
| | 913 | PERSON LOCATOR OR PERSON-SPECIFIC |
| | 914 | PROGRAMMABLE TELEPHONE COMPONENT |
| | 916 | TOUCH SCREEN ASSOCIATED WITH TELEPHONE SET |
| | 917 | VOICE MENUS |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections 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. | ||
| FOR100 | HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE) (379/55) |
| FOR101 | HAVING ELECTROMAGNETIC LINK FOR SPEECH OR PAGING SIGNAL (E.G., LIGHT WAVE LINK) (379/56) |
| FOR112 | TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) (379/90) |
| FOR113 | Credit authorization (379/91) |
| FOR114 | Polling (e.g., audience survey) (379/92) |
| FOR115 | With transmission of a digital message signal over a telephone line (379/93) |
| FOR116 | Including switching station (379/94) |
| FOR117 | Access restricting (379/95) |
| FOR118 | Including terminal for display of digital information (379/96) |
| FOR119 | By voice frequency signal (e.g., tone code) (379/97) |
| FOR122 | To produce visual-graphic copy reproduction (e.g., facsimile) (379/100) |
| FOR123 | Audio program distribution (379/101) |
| FOR124 | Remote control (379/102) |
| FOR125 | Of entrance or exit lock (379/103) |
| FOR126 | With indication (379/104) |
| FOR127 | From terminal (379/105) |
| FOR128 | Remote indication over telephone line (e.g., telemetry) (379/106) |
| FOR130 | Telegraphy (379/108) |
| FOR132 | COMPOSITE SUBSTATION OR TERMINAL (E.G., HAVING CALCULATOR, RADIO) (379/110) |
| FOR133 | WITH AUDIO MESSAGE STORAGE AND RETRIEVAL (379/67) |
| FOR134 | Stored in digital form (379/88) |
| FOR136 | DIAGNOSTIC TESTING, MALFUNCTION, INDICATION, OR ELECTRICAL CONDITION MEASUREMENT (379/1) |
| FOR137 | By loopback (379/5) |
| FOR138 | By analysis of injected tone signal (379/6) |
| FOR139 | By automatic testing sequence (e.g., programmable, scanning) (379/10) |
| FOR140 | Of automatic switching equipment (379/15) |
| FOR142 | Of subscriber loop or terminal (379/27) |
| FOR144 | Indication of nonstandard condition of telephone equipment (379/32) |
| FOR146 | Computer or processor control (379/112) |
| FOR150 | AT CENTRAL OFFICE (379/121) |
| FOR152 | WITH CALLING NUMBER DISPLAY OR RECORDING AT CALLED SUBSTATION (379/142) |
| FOR153 | Other than coin (379/144) |
| FOR154 | PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM (379/167) |
| FOR155 | SPECIAL SERVICES (379/201) |
| FOR158 | Subscriber control (379/204) |
| FOR159 | Conference initiation by single calling sation (379/205) |
| FOR162 | Priority override (e.g., butt-in) (379/208) |
| FOR163 | Repetitive call attempts (e.g., camp-on-busy, retry) (379/209) |
| FOR164 | Call diversion (e.g., call capture) (379/210) |
| FOR165 | Call forwarding (379/211) |
| FOR166 | Call transfer (379/212) |
| FOR167 | Intercept (e.g., dead or changed number) (379/213) |
| FOR168 | Secretarial or answering service (379/214) |
| FOR169 | Call waiting (379/215) |
| FOR170 | Abbreviated dialing or direct call (e.g., hot line) (379/216) |
| FOR171 | Audible paging (379/217) |
| FOR172 | Performed by operator (e.g., butt-in, busy verification) (379/218) |
| FOR173 | With interexchange network routing (379/220) |
| FOR174 | Alternate routing (379/221) |
| FOR175 | Call distribution to operator (379/265) |
| FOR176 | Call queuing (379/266) |
| FOR177 | Repertory or abbreviated call signal generation (379/355) |
| FOR178 | With dynamic memory (379/356) |
| FOR180 | Incoming call alerting (e.g., ringing) (379/373) |
| FOR181 | With music or audible message generation (379/374) |
| FOR184 | SUBSTATION OR TERMINAL CIRCUITRY (379/387) |
| FOR188 | SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE (379/399) |
| FOR189 | Echo suppresion, antisinging, or reverse path blocking (379/406) |
| FOR190 | Disable or inhibit (379/407) |
| FOR191 | Control by pilot frequency signal (379/408) |
| FOR192 | Having variolosser or attenuator (379/409) |
| FOR193 | Echo cancellation (e.g., phase opposition) (379/410) |
| FOR195 | Having loudspeaking conversation capability (e.g., hands-free type or speakerphone) (379/420) |
| FOR196 | Housing or housing component (379/428) |