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Class Information
Number: 381/1
Name: Electrical audio signal processing systems and devices > Binaural and stereophonic
Description: Subject matter where there are two or more independent sound signals which are to be separately reproduced so as to create a sense of depth.










Sub-classes under this class:

Class Number Class Name Patents
381/28 Amplifier 141
381/2 Broadcast or multiplex stereo 308
381/27 Center channel 156
381/23.1 Hearing aid 145
381/17 Pseudo stereophonic 792
381/19 Quadrasonic 202
381/26 Stereo sound pickup device (microphone) 161
381/300 Stereo speaker arrangement 299


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

Patent Number Title Of Patent Date Issued
8712058 Apparatus and method for encoding/decoding signal Apr. 29, 2014
8705747 Object-based 3-dimensional audio service system using preset audio scenes Apr. 22, 2014
8705779 Surround sound virtualization apparatus and method Apr. 22, 2014
8693951 Wireless audio frequency playing apparatus and wireless playing system using the same Apr. 8, 2014
8693706 Pseudo bass generating apparatus Apr. 8, 2014
8687829 Apparatus and method for multi-channel parameter transformation Apr. 1, 2014
8666080 Method for processing a multi-channel audio signal for a binaural hearing apparatus and a corresponding hearing apparatus Mar. 4, 2014
8666081 Apparatus for processing a media signal and method thereof Mar. 4, 2014
8638945 Apparatus and method for encoding/decoding signal Jan. 28, 2014
8638946 Method and apparatus for creating spatialized sound Jan. 28, 2014
8625820 Amplifier circuit audio circuit and electronic device Jan. 7, 2014
8625808 Methods and apparatuses for encoding and decoding object-based audio signals Jan. 7, 2014
8625811 Method and apparatus for encoding and decoding stereo signal and multi-channel signal Jan. 7, 2014
8620012 Apparatus and method for providing stereo effect in portable terminal Dec. 31, 2013
8619998 Spatial audio enhancement processing method and apparatus Dec. 31, 2013
8620006 Center channel rendering Dec. 31, 2013
8620011 Method, medium, and system synthesizing a stereo signal Dec. 31, 2013
8615092 Sound processing device, correcting device, correcting method and recording medium Dec. 24, 2013
8611546 Method and apparatus for remotely switching noise reduction modes in a radio system Dec. 17, 2013
8605914 Nonlinear filter for separation of center sounds in stereophonic audio Dec. 10, 2013
8594336 Sound image localization apparatus Nov. 26, 2013
8588947 Apparatus for processing an audio signal and method thereof Nov. 19, 2013
8588440 Sweet spot manipulation for a multi-channel signal Nov. 19, 2013
8577045 Apparatus and method for encoding a multi-channel audio signal Nov. 5, 2013
8565455 Multiple display systems with enhanced acoustics experience Oct. 22, 2013
8559653 Multi-channel decoding systems capable of reducing noise and methods thereof Oct. 15, 2013
8559644 Apparatus for sound having multiples stereo imaging Oct. 15, 2013
8553892 Processing a multi-channel signal for output to a mono speaker Oct. 8, 2013
8553890 Sound reproduction method and sound reproduction system Oct. 8, 2013
8553891 Low complexity parametric stereo decoder Oct. 8, 2013
8532495 Method for energy efficient pulsing operation of transceivers of a networked device Sep. 10, 2013
8520873 Audio spatialization and environment simulation Aug. 27, 2013
8520871 Method of and device for generating and processing parameters representing HRTFs Aug. 27, 2013
8503682 Head-related transfer function convolution method and head-related transfer function convolution device Aug. 6, 2013
8494189 Virtual sound source localization apparatus Jul. 23, 2013
8494192 Audio reproducing system and method thereof Jul. 23, 2013
8488798 Matrix decoder Jul. 16, 2013
8488819 Method and apparatus for processing a media signal Jul. 16, 2013
8483396 Method for the sound processing of a stereophonic signal inside a motor vehicle and motor vehicle implementing said method Jul. 9, 2013
8477949 2.1 crossover equalization in PC audio applications Jul. 2, 2013
8472631 Multi-channel audio enhancement system for use in recording playback and methods for providing same Jun. 25, 2013
8466363 Sound generation processing apparatus, sound generation processing method and a tangible recording medium Jun. 18, 2013
8457157 Digital communications system with variable-bandwidth traffic channels Jun. 4, 2013
8442237 Apparatus and method of reproducing virtual sound of two channels May. 14, 2013
8428267 Method and an apparatus for decoding an audio signal Apr. 23, 2013
8422690 Audio reproduction apparatus and control method for the same Apr. 16, 2013
8417518 Voice recognition system, method, and program Apr. 9, 2013
8391791 Distributed sound enhancement Mar. 5, 2013
8391498 Stereophonic widening Mar. 5, 2013
8391499 Method and apparatus for enhancing auditory spatial perception Mar. 5, 2013

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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