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Class Information
Number: 704
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression >
Description: This is the generic class for apparatus and corresponding methods for constructing, analyzing, and modifying units of human language by data processing, in which there is a significant change in the data.










Class Number Class Name No. of Patents
704/500

Audio signal bandwidth compression or expansion

1643
704/502

Delay line

165
704/501

With content reduction encoding

588
704/503

Audio signal time compression or expansion (e.g., run length coding)

539
704/504

With content reduction encoding

272
704/1

Linguistics

834
704/10

Dictionary building, modification, or prioritization

1055
704/8

Multilingual or national language support

992
704/9

Natural language

2571
704/2

Translation machine

1098
704/4

Based on phrase, clause, or idiom

637
704/5

For partial translation

328
704/3

Having particular input/output device

503
704/6

Punctuation

97
704/7

Storage or retrieval of data

621
704/200

Speech signal processing

758
704/270

Application

2823
704/271

Handicap aid

307
704/272

Novelty item

317
704/276

Pattern display

270
704/273

Security system

344
704/278

Sound editing

353
704/270.1

Speech assisted network

1154
704/275

Speech controlled system

2227
704/277

Translation

448
704/274

Warning/alarm system

127
704/201

For storage or transmission

953
704/229

Adaptive bit allocation

610
704/220

Analysis by synthesis

525
704/205

Frequency

766
704/206

Specialized information

306
704/209

Formant

203
704/207

Pitch

686
704/208

Voiced or unvoiced

425
704/210

Silence decision

167
704/225

Gain control

378
704/219

Linear prediction

1212
704/202

Neural network

73
704/226

Noise

1058
704/228

Post-transmission

439
704/227

Pretransmission

248
704/224

Normalizing

229
704/221

Pattern matching vocoders

366
704/223

Excitation patterns

573
704/222

Vector quantization

523
704/230

Quantization

731
704/211

Time

399
704/216

Correlation function

210
704/217

Autocorrelation

178
704/218

Cross-correlation

103
704/212

Pulse code modulation (pcm)

200
704/215

Silence decision

253
704/214

Voiced or unvoiced

314
704/213

Zero crossing

76
704/203

Transformation

389
704/204

Orthogonal functions

114
704/200.1

Psychoacoustic

590
704/231

Recognition

1343
704/243

Creating patterns for matching

744
704/245

Clustering

253
704/244

Update patterns

380
704/233

Detect speech in noise

1029
704/232

Neural network

208
704/234

Normalizing

177
704/236

Specialized equations or comparisons

443
704/237

Correlation

73
704/238

Distance

199
704/241

Dynamic time warping

183
704/240

Probability

433
704/239

Similarity

222
704/242

Viterbi trellis

167
704/235

Speech to image

1027
704/246

Voice recognition

917
704/248

Endpoint detection

124
704/247

Preliminary matching

192
704/250

Specialized models

253
704/249

Subportions

145
704/251

Word recognition

1503
704/253

Endpoint detection

244
704/252

Preliminary matching

317
704/255

Specialized models

687
704/256

Markov

478
704/256.1

Hidden markov model (hmm) (epo)

89
704/256.4

Duration modeling in hmm, e.g., semi hmm, segmental models, transition probabilities (epo)

73
704/256.5

Hidden markov (hm) network (epo)

53
704/256.6

State emission probability (epo)

14
704/256.7

Continuous density, e.g, gaussian distribution, lapalce (epo)

34
704/256.8

Discrete density, e.g., vector quantization preprocessor, look up tables (epo)

29
704/256.2

Training of hmm (epo)

97
704/256.3

With insufficient amount of training data, e.g., state sharing, tying, deleted interpolation (epo)

23
704/257

Natural language

1100
704/254

Subportions

593
704/258

Synthesis

939
704/263

Correlation

51
704/264

Excitation

116
704/268

Frequency element

307
704/260

Image to speech

1116
704/265

Interpolation

180
704/262

Linear prediction

174
704/259

Neural network

50
704/266

Specialized model

219
704/267

Time element

280
704/269

Transformation

111
704/261

Vocal tract model

139
 
 
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