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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

734
704/502

Delay line

50
704/501

With content reduction encoding

228
704/503

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

299
704/504

With content reduction encoding

119
704/1

Linguistics

415
704/10

Dictionary building, modification, or prioritization

499
704/8

Multilingual or national language support

470
704/9

Natural language

1275
704/2

Translation machine

505
704/4

Based on phrase, clause, or idiom

236
704/5

For partial translation

117
704/3

Having particular input/output device

231
704/6

Punctuation

37
704/7

Storage or retrieval of data

316
704/200

Speech signal processing

355
704/270

Application

1576
704/271

Handicap aid

204
704/272

Novelty item

216
704/276

Pattern display

185
704/273

Security system

186
704/278

Sound editing

234
704/270.1

Speech assisted network

541
704/275

Speech controlled system

1265
704/277

Translation

207
704/274

Warning/alarm system

87
704/201

For storage or transmission

582
704/229

Adaptive bit allocation

414
704/220

Analysis by synthesis

377
704/205

Frequency

436
704/206

Specialized information

163
704/209

Formant

138
704/207

Pitch

468
704/208

Voiced or unvoiced

253
704/210

Silence decision

84
704/225

Gain control

217
704/219

Linear prediction

822
704/202

Neural network

51
704/226

Noise

614
704/228

Post-transmission

275
704/227

Pretransmission

154
704/224

Normalizing

162
704/221

Pattern matching vocoders

225
704/223

Excitation patterns

403
704/222

Vector quantization

363
704/230

Quantization

487
704/211

Time

250
704/216

Correlation function

128
704/217

Autocorrelation

125
704/218

Cross-correlation

59
704/212

Pulse code modulation (pcm)

164
704/215

Silence decision

154
704/214

Voiced or unvoiced

204
704/213

Zero crossing

54
704/203

Transformation

255
704/204

Orthogonal functions

86
704/200.1

Psychoacoustic

326
704/231

Recognition

651
704/243

Creating patterns for matching

429
704/245

Clustering

153
704/244

Update patterns

226
704/233

Detect speech in noise

637
704/232

Neural network

165
704/234

Normalizing

108
704/236

Specialized equations or comparisons

264
704/237

Correlation

44
704/238

Distance

149
704/241

Dynamic time warping

143
704/240

Probability

289
704/239

Similarity

163
704/242

Viterbi trellis

112
704/235

Speech to image

488
704/246

Voice recognition

462
704/248

Endpoint detection

75
704/247

Preliminary matching

70
704/250

Specialized models

136
704/249

Subportions

83
704/251

Word recognition

760
704/253

Endpoint detection

172
704/252

Preliminary matching

163
704/255

Specialized models

454
704/256

Markov

351
704/256.1

Hidden markov model (hmm) (epo)

60
704/256.4

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

57
704/256.5

Hidden markov (hm) network (epo)

33
704/256.6

State emission probability (epo)

7
704/256.7

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

22
704/256.8

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

21
704/256.2

Training of hmm (epo)

60
704/256.3

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

11
704/257

Natural language

519
704/254

Subportions

373
704/258

Synthesis

578
704/263

Correlation

36
704/264

Excitation

97
704/268

Frequency element

226
704/260

Image to speech

667
704/265

Interpolation

139
704/262

Linear prediction

133
704/259

Neural network

40
704/266

Specialized model

151
704/267

Time element

202
704/269

Transformation

73
704/261

Vocal tract model

89
 
 
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