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Class Information
Number: 370
Name: Multiplex communications >
Description: A. This is the generic class for multiplexing or duplexing systems, methods, or apparatus.










Class Number Class Name No. of Patents
370/202

Amplitude compression or expansion

68
370/431

Channel assignment techniques

956
370/437

Adaptive selection of channel assignment technique

1029
370/462

Arbitration for access to a channel

1041
370/445

Carrier sense multiple access (csma)

1134
370/447

Arbitration for access between contending stations

744
370/448

Using weighted back-off timing

261
370/446

Using a star coupler

94
370/436

Combined time and frequency assignment

366
370/441

Combining or distributing information via code word channels using multiple access techniques (e.g., cdma)

1071
370/442

Combining or distributing information via time channels using multiple access technique (e.g., tdma)

1028
370/443

Using channel reservation

383
370/444

With priority resolution

246
370/463

Details of circuit or interface for connecting user to the network

1392
370/432

Messages addressed to multiple destinations

1331
370/433

Only active channels transmitted

176
370/434

Concentrator

150
370/435

Tasi (time assignment speech interpolation)

109
370/449

Polling

618
370/450

Passing a signal identifying the idle or busy state of a channel (e.g., token passing)

255
370/457

Initialization or reinitialization of network

64
370/451

On bus

128
370/452

On ring or loop

334
370/454

Having multiple idle or busy signals simultaneously on the network

39
370/456

Idle or busy signal erasure or frame erasure

36
370/455

Including priority resolution

198
370/453

Initialization or reinitialization of network

98
370/438

Using a separate control line or bus for access control

351
370/439

Control line is used to request or reserve access

145
370/440

Dual bus dynamic queuing (i.e., dqdb)

55
370/458

Using time slots

948
370/461

Arbitration for access between contending stations

524
370/459

Having indication of idle or busy state of time slot

202
370/460

On ring or loop network

100
370/310

Communication over free space

2126
370/342

Combining or distributing information via code word channels using multiple access techniques (e.g., cdma)

4583
370/343

Combining or distributing information via frequency channels

1273
370/344

Multiple access (e.g., fdma)

748
370/345

Combining or distributing information via time channels

1144
370/347

Multiple access (e.g., tdma)

1881
370/348

Channel reservation scheme

835
370/346

Polling

548
370/350

Synchronization

2215
370/349

Using messages having an address field as header

2040
370/328

Having a plurality of contiguous regions served by respective fixed stations

7309
370/329

Channel assignment

7050
370/335

Combining or distributing information via code word channels using multiple access techniques (e.g., cdma)

4506
370/336

Combining or distributing information via time channels

1022
370/337

Multiple access (e.g., tdma)

1651
370/331

Hand-off control

5153
370/332

Based upon a particular signal quality measurement

2200
370/333

Signal quality determined by bit error rate

579
370/334

Using multiple antennas at a station

1120
370/330

Having both time and frequency assignment

1478
370/338

Contiguous regions interconnected by a local area network

7967
370/312

Message addressed to multiple destinations

1548
370/339

Plural usage of common antenna

272
370/313

Portable address responsive receiver

345
370/314

Using time division multiplexing

244
370/315

Repeater

1224
370/316

Airborne or space satellite repeater

724
370/326

Combining or distributing information via time channels

262
370/317

Including noise compensation

197
370/318

Including power control

1229
370/319

Multiple access (e.g., fdma)

525
370/320

Code division (cdma)

1085
370/325

Including onboard switching

119
370/321

Time division (tdma)

685
370/322

Channel reservation scheme

368
370/323

Including onboard switching

115
370/324

Synchronization

628
370/327

In a trunking system

120
370/311

Signaling for performing battery saving

1632
370/310.1

Using atm as a wireles protocol

129
370/310.2

Having a plurality of contiguous regions served by respective fixed stations

507
370/340

Using trunking

158
370/341

Channel assignment

1336
370/464

Communication techniques for information carried in plural channels

655
370/465

Adaptive

3223
370/468

Assignment of variable bandwidth or time period for transmission or reception

3557
370/472

Byte length

174
370/466

Converting between protocols

3180
370/467

Conversion between signaling protocols

895
370/470

Frame length

594
370/471

Message having an address header

735
370/469

Processing multiple layer protocols

1680
370/473

Transmission of a single message having multiple packets

956
370/475

Address transmitted

534
370/474

Assembly or disassembly of messages having address headers

2693
370/476

Byte assembly and formatting

743
370/478

Combined time division and frequency division

371
370/479

Combining or distributing information via code word channels

531
370/480

Combining or distributing information via frequency channels

841
370/489

Bus (distributed stations)

134
370/490

Combined communication of diverse information types

124
370/493

Combined voice and data transmission

534
370/494

Data over voice

103
370/495

Data under voice

61
370/484

Digital analysis or synthesis of a group

154
370/481

Multiple frequency translations

89
370/482

Particular carrier generation

116
370/491

Pilot

242
370/492

Repeater

155
370/496

Signaling

199
370/485

Subscriber carrier

242
370/488

Connecting filters

77
370/486

Program distribution

372
370/487

Combined communication of diverse information types

370
370/483

Using angle modulation

46
370/497

Using particular filtering technique

202
370/498

Combining or distributing information via time channels

474
370/545

Conversion of rate from a single input to a single output

182
370/542

Demultiplexing single input channel to plural output channels

223
370/543

Different rate output channels

105
370/544

Same rate output channels

50
370/536

Demultiplexing single signal into plural parallel channels (e.g., parallel transmission for increasing transmission speed)

401
370/529

Information superimposed on other information

159
370/531

Magnetic core for switching or storage

9
370/532

Multiplexer or distributor and technique for handling low level input signal

154
370/534

Multiplexer or distributor using electron beam switching device

30
370/533

Multiplexer or distributor using pulse amplitude modulation

49
370/535

Multiplexing combined with demultiplexing

1313
370/537

Multiplexing plural input channels to a common output channel

861
370/538

Plural input channels of different rates to a single common rate output channel

366
370/539

Multiple levels of multiplexing to form a multiplex hierarchy

199
370/540

Plural input channels of same rate to a single common rate output channel

136
370/541

Multiple levels of multiplexing to form a multiplex hierarchy

100
370/500

Pilot

166
370/499

Polarity multiplex

22
370/501

Repeater

203
370/502

Bus extenders

56
370/522

Signaling (ancillary to main information)

1184
370/526

Digital tone detection

131
370/525

Digital tone signal generation

108
370/528

Inserted in gaps in main information

281
370/527

Superimposed or modulated on principal information

161
370/524

Using a dedicated signaling channel (i.e., d-channel)

577
370/523

Using bit robbing

122
370/530

Staircase wave

10
370/503

Synchronizing

2726
370/516

Adjusting for phase or jitter

1051
370/517

Including delay device

438
370/519

Delay based upon propagation delay time

307
370/518

Provide plural phases of a clocking signal

176
370/507

Mutual (reciprocal) synchronization

268
370/508

Transmission time into time slots adjusted based upon propagation delay time

367
370/505

Pulse stuffing or deletion

239
370/506

Frame or bit stream justification

328
370/504

Reference indication consists of a gap

102
370/520

Unique synchronization pulse

126
370/509

Using synchronization information contained in a frame

1157
370/510

Synchronization information is distributed over multiple frames

407
370/511

Using redundant synchronization words

91
370/512

Synchronization information is distributed within a frame

320
370/513

Plural synchronization words

188
370/514

Unique synchronization word or unique bit sequence

540
370/515

Pseudo-random

224
370/521

Time compression or expansion

234
370/477

Transmission bandwidth conservation

903
370/201

Crosstalk suppression

336
370/229

Data flow congestion prevention or control

2485
370/230

Control of data admission to the network

3890
370/232

Based on data flow rate measurement

1555
370/234

Measurement of the average data flow rate

335
370/233

Measurement of the peak data flow rate

350
370/231

End-to-end flow control

1393
370/230.1

Traffic shaping

885
370/235

Flow control of data transmission through a network

4756
370/237

Congestion based rerouting

654
370/236

Including signaling between network elements

1553
370/236.2

Using oam (operation, administration and maintenance) cells

175
370/236.1

Using rm (resource management) cells

166
370/238

Least cost or minimum delay routing

1429
370/238.1

Atm least cost routing

64
370/235.1

Using leaky bucket technique

202
370/239

Using antijabber circuit

38
370/240

In a star coupler

45
370/241

Diagnostic testing (other than synchronization)

1698
370/252

Determination of communication parameters

7636
370/253

Measurement of flow rate of messages having an address header

661
370/242

Fault detection

1629
370/245

Of a local area network

363
370/243

Of a repeater system

142
370/244

Of a switching system

675
370/249

Loopback

664
370/246

Of a repeater

120
370/247

Having a dedicated test line or channel

116
370/250

Of a switching system

496
370/251

Having dedicated test line or channel

213
370/248

Path check

1115
370/241.1

Using oam (operation, administration and maintenance) cells

252
370/297

Diplex

100
370/276

Duplex

405
370/277

Communication over free space

244
370/279

Duplex repeaters

175
370/281

Frequency division

264
370/280

Time division

652
370/278

Transmit/receive interaction control

755
370/296

Convertible to half duplex

202
370/293

Duplex repeaters or extenders

163
370/295

Frequency division

184
370/294

Time division

279
370/282

Transmit/receive interaction control

563
370/283

Artificial line

8
370/285

Bridge

92
370/284

Differential

88
370/286

Echo suppression or cancellation

633
370/287

Disabling or inhibiting

94
370/289

Having residual echo cancellation or suppression

198
370/290

Using a particular adaptive filter

288
370/291

Using a transversal filter

117
370/292

Using a training sequence

106
370/288

Using an attenuator

69
370/216

Fault recovery

1626
370/225

Bypass an inoperative channel

816
370/226

In a repeater system

108
370/227

Using a spare channel

286
370/228

Spare channel

860
370/221

Bypass an inoperative station

480
370/222

In a ring or loop network

489
370/223

Using a secondary ring or loop

297
370/224

Loopback of signals on the secondary ring or loop

244
370/217

Bypass an inoperative switch or inoperative element of a switching system

1009
370/218

Packet switching system or element

717
370/219

Standby switch

392
370/220

Standby switch

368
370/203

Generalized orthogonal or special mathematical techniques

1117
370/210

Fourier transform

1143
370/211

Level multiplex

52
370/208

Particular set of orthogonal functions

2105
370/209

Walsh functions

362
370/204

Plural diverse modulation techniques

479
370/205

Pulse width and pulse position modulation

108
370/206

Quadrature carriers

592
370/207

Having a signaling constellation

172
370/908

Local area network

74
370/911

Bridge (e.g., brouter, bus extender, etc.)

40
370/910

Carrier sense multiple access (e.g., ethernet, 10base-t)

30
370/909

Token ring

15
370/298

Low speed asynchronous data system (e.g., teletypewriter service)

26
370/302

Channels separated in frequency

24
370/300

Data assembly or formatting

53
370/299

Data switching exchange

50
370/303

Rotary distributor

5
370/304

Synchronizer

43
370/305

Start-stop

45
370/306

Nonmechanical

10
370/301

Transmitting time of transition and logic state

26
370/546

Miscellaneous

66
370/916

Multiplexer/demultiplexer

32
370/254

Network configuration determination

3404
370/257

In a bus system

240
370/258

In a ring system

340
370/255

Using a particular learning algorithm or technique

1212
370/256

Spanning tree

751
370/912

Packet communications

93
370/913

Wireless or radio

111
370/351

Pathfinding or routing

2396
 

Pathfinding or routing

 
370/352

Combined circuit switching and packet switching

7733
370/356

Routing circuit switched traffic through a packet switching network

1639
370/355

Routing packets through a circuit switching network

750
370/353

Switching network having common elements to handle both circuit switched traffic and packet switched traffic

963
370/354

Switching network having separate elements to handle circuit switched traffic and packet switched traffic

805
370/430

Fdm switching

150
370/428

Store and forward

1157
370/429

Particular storing and queuing arrangement

824
370/389

Switching a message which includes an address header

6282
 

Switching a message which includes an address header

 
370/422

Centralized switching

371
370/426

Having a signaling feature

193
370/423

Including a bus for interconnecting inputs and outputs

128
370/424

Including a ring or loop for interconnecting inputs and outputs

109
370/425

Star configuration

80
370/400

Having a plurality of nodes performing distributed switching

2471
370/401

Bridge or gateway between networks

8371
370/402

Bridge between bus systems

592
370/403

At least one bus is a ring network

295
370/404

Ring or loop forms backbone for interconnecting other networks

329
370/405

The other networks are ring or loop networks

124
370/409

Employing logical addressing for routing (e.g., vp or vc)

635
370/410

Having a signaling feature

913
370/407

Interconnected star couplers

122
370/408

Nodes interconnected in hierarchy to form a tree

584
370/406

Plurality of rings or loops to form a mesh network

371
370/411

Including sorting and merging networks

225
370/419

Input or output circuit, per se (i.e., line interface)

1152
370/420

For connecting plural subscribers to a network (i.e., network termination)

401
370/421

Subscribers connected to input or output circuit by a common bus

153
370/395.1

Message transmitted using fixed length packets (e.g., atm cells)

1182
370/395.6

Adapting detail (e.g., converting to/from atm, or detail of atm adaption layers (aals))

293
370/395.64

Adapting connection-oriented variable bit rate (vbr) data (e.g., mpeg/hdtv packet video/audio over atm or using aal2)

211
370/395.65

Adapting connectionless variable bit rate (vbr) data (e.g., adapting 802.x, or using aal5)

105
370/395.61

Adapting constant bit rate (cbr) data (e.g., voice, or narrow band isdn over atm, or using aal1)

186
370/395.62

Detail of clock recovery or synchronization

245
370/395.63

Adapting frame relay/x.25 data (e.g., using aal 3/4)

44
370/395.4

Assigning period of time for information to be transmitted (e.g., scheduling)

929
370/395.41

Based on bandwidth allocation (e.g., weighted round robin)

444
370/395.42

Based on priority

531
370/395.43

Based on service category (e.g., cbr, vbr, ubr, or abr)

287
370/398

Centralized switching

317
370/399

Employing logical addressing for routing (e.g., vp or vc)

458
370/395.3

Connection identifier assignment

541
370/395.31

Including routing table

631
370/395.32

Employing particular searching function (e.g., hashing, alternate, re-routing)

390
370/395.2

Connection set-up/disconnect (e.g., connection admission control)

1020
370/395.21

Based on traffic contract (including using setup messages, qos, delay/bandwidth requirement)

1165
370/396

Distributed switching

507
370/397

Employing logical addressing for routing (e.g., vp or vc)

822
370/395.7

Having detail of switch memory reading/writing

346
370/395.72

Having central (e.g., common) storage

109
370/395.71

Having input or output storage or both

172
370/395.5

Multiprotocol network

632
370/395.54

Address resolution (e.g., arp, or nhrp)

244
370/395.53

Emulated lan (lane/elan/vlan, e.g., ethernet or token ring legacy lan over a single atm network/lan)

517
370/395.52

Internet protocol (including tcp/ip or udp/ip) over fixed length packet network (e.g., ip over atm)

607
370/395.51

Utilizing a plurality of atm networks (e.g., mpoa, sonet, or sdh)

218
370/392

Processing of address header for routing, per se

5461
370/393

Address concatenation

198
370/412

Queuing arrangement

3194
370/413

Having both input and output queuing

614
370/414

Contention resolution for output

275
370/415

Having input queuing only

196
370/416

Contention resolution for output

176
370/417

Having output queuing only

165
370/418

Contention resolution for output

182
370/390

Replicate messages for multiple destination distribution

1980
370/394

Sequencing or resequencing of packets to insure proper output sequence order

1407
370/427

Space switching

103
370/391

Switching input signals having different aggregate bit rates

230
370/357

Through a circuit switch

316
370/359

Input or output circuit, per se (i.e., line interface)

432
370/386

Particular switching network arrangement

648
370/387

Multiplanar switch

128
370/388

Multistage switch

489
370/360

Switching control

812
370/362

Bus switch

211
370/363

Having details of control storage arrangement

127
370/364

Having plural buses

133
370/365

Separate transmit and receive buses

60
370/361

Folded network

27
370/384

Having a supervisory signaling feature

350
370/385

Having a separate signaling network

189
370/381

Having details of control storage arrangement

191
370/383

Control storage addressing

57
370/382

Data memory addressing

121
370/369

Having time and space switches

142
370/374

Having details of control storage arrangement

59
370/370

Having space switch as intermediate stage (e.g., t-s-t, t-s-s, or s-s-t)

138
370/371

Having details of control storage arrangement

96
370/373

Having supervisory signaling

70
370/372

Having time switch as intermediate stage (e.g., s-t-s or t-t-s)

48
370/366

Including serial-parallel or parallel-serial conversion for input or output

246
370/367

For distribution to a multiplanar switching network

47
370/368

Having details of control storage arrangement

79
370/380

Space switch, per se (e.g., s or s-s)

226
370/375

Time switch, per se (e.g., t or t-t)

148
370/378

Having details of control storage arrangement

120
370/379

Data memory addressing

111
370/377

Having supervisory signaling

85
370/376

Time slot interchange, per se

272
370/358

Switching input signals having different aggregate bit rates

172
370/200

Phantom

67
370/215

Phase modulation

91
370/213

Pulse position modulation

81
370/212

Pulse width (pulse duration) modulation

138
370/273

Quadruplex

34
370/275

Duplex diplex

26
370/274

Repeater

59
370/914

Rate converter

37
370/309

Resonant transfer substitutes

2
370/308

Resonant transfer techniques

15
370/272

Sextuplex

40
370/214

Simultaneous telegraphy and telephony

21
370/259

Special services

518
370/260

Conferencing

1293
370/263

Conferee signals combined or distributed via time channels

182
370/265

Particular technique for combining diverse information types

123
370/264

Using plural diverse channel communications with a dedicated signaling channel (i.e., isdn)

139
370/266

Using summation of conferee signals

89
370/267

Digital summation

101
370/268

Including cancellation of certain signals

64
370/269

Including cancellation of certain signals

39
370/261

Technique for setting up a conference call

593
370/262

Operator setup of the conference

114
370/270

Distribution of signal to multiple agent stations

353
370/271

Special feature of multiplex telephone terminal

164
370/915

Time division cellular radio systems

9
370/307

Trasmultiplexers

79
370/901

Wide area network

34
370/902

Packet switching

46
370/903

Osi compliant network

17
370/905

Asynchronous transfer mode (atm)

56
370/906

Fiber data distribution interface (fddi)

43
370/904

Integrated services digital network (isdn)

39
370/907

Synchronous optical network (sonet)

251
 
 
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