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Class Information
Number: 704/200
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing
Description: Subject matter wherein the system performs operations or functions on signals which represent speech










Sub-classes under this class:

Class Number Class Name Patents
704/270 Application 2,823
704/201 For storage or transmission 953
704/200.1 Psychoacoustic 590
704/231 Recognition 1,343
704/258 Synthesis 939


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
7409338 Softbit speech decoder and related method for performing speech loss concealment Aug. 5, 2008
7401022 Processing a speech frame in a radio system Jul. 15, 2008
7395249 Speech interface for an automated endoscope system Jul. 1, 2008
7376568 Voice signal processor May. 20, 2008
7376632 Model and method for using an interactive rational agent, multiagent server and system implementing same May. 20, 2008
7363398 Intelligent total access system Apr. 22, 2008
7346137 Nonuniform oversampled filter banks for audio signal processing Mar. 18, 2008
7340393 Emotion recognizing method, sensibility creating method, device, and software Mar. 4, 2008
7333929 Modular scalable compressed audio data stream Feb. 19, 2008
7315812 Method for determining the quality of a speech signal Jan. 1, 2008
7313517 Method and system for speech quality prediction of an audio transmission system Dec. 25, 2007
7295976 Voice activity detector for telephone Nov. 13, 2007
7295968 Device and method for processing an audio signal Nov. 13, 2007
7286597 Methods and systems for adaptive receiver equalization Oct. 23, 2007
7287221 Differential dynamic content delivery with text display in dependence upon sound level Oct. 23, 2007
7283954 Comparing audio using characterizations based on auditory events Oct. 16, 2007
7274738 System for improving performance of compression and decompression algorithms in a telecommunication system Sep. 25, 2007
7266430 Medical applications in telematics Sep. 4, 2007
7254532 Method for making a voice activity decision Aug. 7, 2007
7254537 Speech input device Aug. 7, 2007
7243060 Single channel sound separation Jul. 10, 2007
7212971 Control apparatus for enabling a user to communicate by speech with a processor-controlled apparatus May. 1, 2007
7209880 Systems and methods for dynamic re-configurable speech recognition Apr. 24, 2007
7191181 Database aggregation query result estimator Mar. 13, 2007
7191121 Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching Mar. 13, 2007
7181389 Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching Feb. 20, 2007
7164672 Method and apparatus for QoS improvement with packet voice transmission over wireless LANs Jan. 16, 2007
7158931 Method for identifying a momentary acoustic scene, use of the method and hearing device Jan. 2, 2007
7153139 Language learning system and method with a visualized pronunciation suggestion Dec. 26, 2006
7139705 Determination of the time relation between speech signals affected by time warping Nov. 21, 2006
7137126 Conversational computing via conversational virtual machine Nov. 14, 2006
7127046 Voice-activated call placement systems and methods Oct. 24, 2006
7124086 Data reproducing apparatus and data reproducing system for reproducing contents stored on a removable recording medium Oct. 17, 2006
RE39336 Formant-based speech synthesizer employing demi-syllable concatenation with independent cross fade in the filter parameter and source domains Oct. 10, 2006
7117145 Adaptive filter for speech enhancement in a noisy environment Oct. 3, 2006
7110940 Recursive multistage audio processing Sep. 19, 2006
7110944 Method and apparatus for noise filtering Sep. 19, 2006
7103547 Implementing a high accuracy continuous speech recognizer on a fixed-point processor Sep. 5, 2006
7103349 Method, system and network entity for providing text telephone enhancement for voice, tone and sound-based network services Sep. 5, 2006
7097640 Multi-functional surgical control system and switching interface Aug. 29, 2006
7076421 Method and system for supporting increased channel density Jul. 11, 2006
7043678 Method for identifying bad frames May. 9, 2006
7035742 Apparatus and method for characterizing an information signal Apr. 25, 2006
7035091 Wearable computer system and modes of operating the system Apr. 25, 2006
7024352 Method and device for objective speech quality assessment without reference signal Apr. 4, 2006
7006881 Media recording device with remote graphic user interface Feb. 28, 2006
6996521 Auxiliary channel masking in an audio signal Feb. 7, 2006
6993488 Audible error detector and controller utilizing channel quality data and iterative synthesis Jan. 31, 2006
6993452 Distance measure for probability distribution function of mixture type Jan. 31, 2006
6989740 Advanced audio safety apparatus Jan. 24, 2006

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