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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
8121836 Apparatus and method of processing an audio signal Feb. 21, 2012
8121834 Method and device for modifying an audio signal Feb. 21, 2012
8121411 Linear transformation matrix calculating apparatus, method thereof and program thereof Feb. 21, 2012
8118712 Methods and systems for computerized talk test Feb. 21, 2012
8116361 Multimode multicarrier modem system and method of communication over the same Feb. 14, 2012
8117028 Method and device for code conversion between audio encoding/decoding methods and storage medium thereof Feb. 14, 2012
RE43190 Speech coding apparatus and speech decoding apparatus Feb. 14, 2012
8109765 Intelligent tutoring feedback Feb. 7, 2012
8108211 Method of and apparatus for analyzing noise in a signal processing system Jan. 31, 2012
8108219 Apparatus and method of encoding and decoding audio signal Jan. 31, 2012
8103514 Slot position coding of OTT syntax of spatial audio coding application Jan. 24, 2012
8103513 Slot position coding of syntax of spatial audio application Jan. 24, 2012
8103512 Method and system for aligning windows to extract peak feature from a voice signal Jan. 24, 2012
8099275 Sound encoder and sound encoding method for generating a second layer decoded signal based on a degree of variation in a first layer decoded signal Jan. 17, 2012
8095357 Removing time delays in signal paths Jan. 10, 2012
8095360 Speech post-processing using MDCT coefficients Jan. 10, 2012
8090577 Bandwidth-adaptive quantization Jan. 3, 2012
8090587 Method and apparatus for encoding/decoding multi-channel audio signal Jan. 3, 2012
8086445 Method and apparatus for creating a unique audio signature Dec. 27, 2011
8082158 Time slot position coding of multiple frame types Dec. 20, 2011
8065136 Multi-channel encoder Nov. 22, 2011
8060374 Slot position coding of residual signals of spatial audio coding application Nov. 15, 2011
8060375 Adapting masking thresholds for encoding a low frequency transient signal in audio data Nov. 15, 2011
8050914 System enhancement of speech signals Nov. 1, 2011
8046234 Method and apparatus for encoding/decoding audio data with scalability Oct. 25, 2011
8045572 Adaptive jitter buffer-packet loss concealment Oct. 25, 2011
8045571 Adaptive jitter buffer-packet loss concealment Oct. 25, 2011
8036249 System and method of data verification Oct. 11, 2011
8036879 Fast acoustic cancellation Oct. 11, 2011
8036904 Audio encoder and method for scalable multi-channel audio coding, and an audio decoder and method for decoding said scalable multi-channel audio coding Oct. 11, 2011
8032372 Dictation selection Oct. 4, 2011
8032365 Method and apparatus for controlling echo in the coded domain Oct. 4, 2011
8032360 System and method for high-quality variable speed playback of audio-visual media Oct. 4, 2011
8027479 Binaural multi-channel decoder in the context of non-energy conserving upmix rules Sep. 27, 2011
8019601 Audio coding device with two-stage quantization mechanism Sep. 13, 2011
8019599 Speech codecs Sep. 13, 2011
8018617 Erasing a stored information pattern on a storage medium Sep. 13, 2011
8019597 Scalable encoding apparatus, scalable decoding apparatus, and methods thereof Sep. 13, 2011
8015000 Classification-based frame loss concealment for audio signals Sep. 6, 2011
8010885 Differential dynamic content delivery with a presenter-alterable session copy of a user profile Aug. 30, 2011
8010372 Apparatus and method of encoding and decoding audio signal Aug. 30, 2011
8010350 Decimated bisectional pitch refinement Aug. 30, 2011
8010349 Scalable encoder, scalable decoder, and scalable encoding method Aug. 30, 2011
8005663 Method of using visual separators to indicate additional character combination choices on a handheld electronic device and associated apparatus Aug. 23, 2011
7996212 Device, method and computer program for analyzing an audio signal Aug. 9, 2011
7996216 Apparatus and method of encoding and decoding audio signal Aug. 9, 2011
7996233 Acoustic coding of an enhancement frame having a shorter time length than a base frame Aug. 9, 2011
7991166 Microphone apparatus Aug. 2, 2011
7988629 Cerebrum evaluation device Aug. 2, 2011
7987096 Methods and apparatuses for encoding and decoding object-based audio signals Jul. 26, 2011

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