Resources Contact Us Home
Browse by Category: Main > Information Technology
Class Information
Number: 704/500
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Audio signal bandwidth compression or expansion
Description: Subject matter where there is either an expansion or reduction of the bandwidth required for transmission of a sound signal.

Sub-classes under this class:

Class Number Class Name Patents
704/502 Delay line 165
704/501 With content reduction encoding 588

Patents under this class:

Patent Number Title Of Patent Date Issued
8249882 Decoding apparatus and decoding method Aug. 21, 2012
8249866 Speech decoding method and apparatus which generates an excitation signal and a synthesis filter Aug. 21, 2012
8249860 Adaptive sound source vector quantization unit and adaptive sound source vector quantization method Aug. 21, 2012
8244547 Signal bandwidth extension apparatus Aug. 14, 2012
8244546 Singing synthesis parameter data estimation system Aug. 14, 2012
8244527 Audio signature extraction and correlation Aug. 14, 2012
8244526 Systems, methods, and apparatus for highband burst suppression Aug. 14, 2012
8244525 Signal encoding a frame in a communication system Aug. 14, 2012
8244523 Systems and methods for noise reduction Aug. 14, 2012
8243936 Efficient and scalable parametric stereo coding for low bitrate audio coding applications Aug. 14, 2012
8239208 Spectral enhancing method and device Aug. 7, 2012
8239193 Method, apparatus, and medium for bandwidth extension encoding and decoding Aug. 7, 2012
8234122 Methods and apparatuses for encoding and decoding object-based audio signals Jul. 31, 2012
8229749 Wide-band encoding device, wide-band LSP prediction device, band scalable encoding device, wide-band encoding method Jul. 24, 2012
8224661 Adapting masking thresholds for encoding audio data Jul. 17, 2012
8224660 Method of coding a source audio signal, corresponding coding device, decoding method and device, signal, computer program products Jul. 17, 2012
8224659 Audio encoding method and apparatus, and audio decoding method and apparatus, for processing death sinusoid and general continuation sinusoid Jul. 17, 2012
8224658 Method, medium, and apparatus encoding and/or decoding an audio signal Jul. 17, 2012
8224657 Method and device for efficient in-band dim-and-burst signaling and half-rate max operation in variable bit-rate wideband speech coding for CDMA wireless systems Jul. 17, 2012
8219409 Audio wave field encoding Jul. 10, 2012
8219408 Audio signal decoder and method for producing a scaled reconstructed audio signal Jul. 10, 2012
8219395 Frame compensation method and system Jul. 10, 2012
8219391 Speech analyzing system with speech codebook Jul. 10, 2012
8218775 Joint enhancement of multi-channel audio Jul. 10, 2012
8214223 Audio decoder and decoding method using efficient downmixing Jul. 3, 2012
8214222 Method and an apparatus for identifying frame type Jul. 3, 2012
8214221 Method and apparatus for decoding an audio signal and identifying information included in the audio signal Jul. 3, 2012
8214220 Method and apparatus for embedding spatial information and reproducing embedded signal for an audio signal Jul. 3, 2012
8214207 Quantizing a joint-channel-encoded audio signal Jul. 3, 2012
8214203 Method and apparatus for recovering line spectrum pair parameter and speech decoding apparatus using same Jul. 3, 2012
8209190 Method and apparatus for generating an enhancement layer within an audio coding system Jun. 26, 2012
8209189 Digital audio signal processing method and apparatus Jun. 26, 2012
8209188 Scalable coding/decoding apparatus and method based on quantization precision in bands Jun. 26, 2012
8209187 Speech coding arrangement for communication networks Jun. 26, 2012
8208643 Generating music thumbnails and identifying related song structure Jun. 26, 2012
8208641 Method and apparatus for processing a media signal Jun. 26, 2012
8204755 Advanced encoding of music files Jun. 19, 2012
8204754 System and method for an improved voice detector Jun. 19, 2012
8204753 Stabilization and glitch minimization for CCITT recommendation G.726 speech CODEC during packet loss scenarios by regressor control and internal state updates of the decoding process Jun. 19, 2012
8204740 Variable frame offset coding Jun. 19, 2012
8201014 System and method for decoding an audio signal Jun. 12, 2012
8200499 High-frequency bandwidth extension in the time domain Jun. 12, 2012
8200498 Secure audio stream scramble system Jun. 12, 2012
8200497 Synthesizing/decoding speech samples corresponding to a voicing state Jun. 12, 2012
8200496 Audio signal decoder and method for producing a scaled reconstructed audio signal Jun. 12, 2012
8200481 Method and device for performing frame erasure concealment to higher-band signal Jun. 12, 2012
8200215 Codec rate adaptation for radio channel rate change Jun. 12, 2012
8199934 Audio level compressor Jun. 12, 2012
8195471 Sampling rate conversion apparatus, coding apparatus, decoding apparatus and methods thereof Jun. 5, 2012
8195470 Audio data packet format and decoding method thereof and method for correcting mobile communication terminal codec setup error and mobile communication terminal performance same Jun. 5, 2012

  Recently Added Patents
Transport of multiple asynchronous data streams using higher order modulation
Means to securely fixate pacing leads and/or sensors in vessels
Optical recording medium, and method for producing optical recording medium
Feedback method and processing system for policy installation failures
Critical word forwarding with adaptive prediction
System and method for the analysis of biodiesel
Wafer level packaging structure with large contact area and preparation method thereof
  Randomly Featured Patents
Shear measuring flexure isolated load cells
Treatment of coarse particle size zinc sulfide to improve visual and infrared transmission on hot-pressed articles
Method of producing thin-film transistor array
Thermoformable composite film
System and method for providing an arbitrated memory bus in a hybrid computing system
Ultrasonic diagnostic apparatus
Liquid crystal display device
Mobile, waterless, coal and mineral separating method
Token moving game with spinning disrupter
Sand roller