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Class Information
Number: 381/2
Name: Electrical audio signal processing systems and devices > Binaural and stereophonic > Broadcast or multiplex stereo
Description: Subject matter for the broadcasting or transmission of two or more independent sound signals which are to be reproduced so as to create a sense of depth.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7613308 |
Remote control interface for replacement vehicle stereos |
Nov. 3, 2009 |
| 7561702 |
Method and system for the pre-processing and post processing of an audio signal for transmission on a highly disturbed channel |
Jul. 14, 2009 |
| RE40836 |
Apparatus and methods for providing text information identifying audio program selections |
Jul. 7, 2009 |
| 7551743 |
Noise reduction apparatus and audio output apparatus |
Jun. 23, 2009 |
| 7542784 |
High quality, low power, wireless audio system |
Jun. 2, 2009 |
| 7539316 |
Configurable filter for processing television audio signals |
May. 26, 2009 |
| 7536019 |
Audio system for use with a vehicle |
May. 19, 2009 |
| 7515935 |
Method and system for flexible FM tuning |
Apr. 7, 2009 |
| 7515889 |
Scaling adjustment using pilot signal |
Apr. 7, 2009 |
| 7486796 |
Stereo receiver for controlling continuously degree of separation |
Feb. 3, 2009 |
| 7471987 |
Determining location of an audience member having a portable media monitor |
Dec. 30, 2008 |
| 7472058 |
Automatic audio source detection for capture devices |
Dec. 30, 2008 |
| 7463310 |
BTSC pilot signal lock |
Dec. 9, 2008 |
| 7457420 |
Method and system for detecting signal modes in a broadcast audio transmission |
Nov. 25, 2008 |
| 7451078 |
Methods and apparatus for identifying media objects |
Nov. 11, 2008 |
| 7447629 |
Audio coding |
Nov. 4, 2008 |
| 7428308 |
Transmitting and reproducing stereophonic audio signals |
Sep. 23, 2008 |
| 7406302 |
Digital FM stereo receiver architecture |
Jul. 29, 2008 |
| 7403624 |
BTSC encoder and integrated circuit |
Jul. 22, 2008 |
| 7400859 |
Combined modulator and MP3 player having socket power supply adapter and/or universal connector |
Jul. 15, 2008 |
| 7392195 |
Lossless multi-channel audio codec |
Jun. 24, 2008 |
| 7386004 |
Digital broadcast system |
Jun. 10, 2008 |
| 7376476 |
Methods for changing time intervals of the occurrence of audio information from local and remote sites |
May. 20, 2008 |
| 7366488 |
Digital carrier-recovery scheme for FM stereo detection |
Apr. 29, 2008 |
| 7346173 |
Method and circuit assemblage for influencing the treble reproduction of an audio signal |
Mar. 18, 2008 |
| 7343015 |
Method and apparatus for high fidelity wireless stereophonic transmission utilizing dual frequency carriers |
Mar. 11, 2008 |
| 7304594 |
Transmitting and receiving device and transmitting device and receiving device |
Dec. 4, 2007 |
| 7253753 |
Method and apparatus of performing sample rate conversion of a multi-channel audio signal |
Aug. 7, 2007 |
| 7181018 |
Digital stereo recovery circuitry and method for radio receivers |
Feb. 20, 2007 |
| 7149312 |
Method and device to retrieve RDS information |
Dec. 12, 2006 |
| 7136346 |
Record carrier method and apparatus having separate formats for a stereo signal and a data signal |
Nov. 14, 2006 |
| 7133527 |
Stereodecoder |
Nov. 7, 2006 |
| 7110549 |
Noise reduction in a stereo receiver |
Sep. 19, 2006 |
| 7106809 |
AM/FM/IBOC receiver architecture |
Sep. 12, 2006 |
| 7103186 |
Stereo/two-tone demodulator |
Sep. 5, 2006 |
| 7092460 |
Digital stereo demultiplexer |
Aug. 15, 2006 |
| 7079657 |
System and method of performing digital multi-channel audio signal decoding |
Jul. 18, 2006 |
| 7068322 |
Broadcasting receiver |
Jun. 27, 2006 |
| 7065217 |
Apparatus and method for multichannel sound reproduction system |
Jun. 20, 2006 |
| 7046811 |
Stereo demultiplexer |
May. 16, 2006 |
| 7046999 |
Half-duplex wireless audio communication system |
May. 16, 2006 |
| 6978026 |
Circuit arrangement for gaining a stereo subcarrier and an RDS carrier |
Dec. 20, 2005 |
| 6968062 |
Transmitter of infrared transmission system and reproducing apparatus comprising headphone device |
Nov. 22, 2005 |
| 6961432 |
Multidescriptive coding technique for multistream communication of signals |
Nov. 1, 2005 |
| 6954534 |
Multiple signal carrier transmission apparatus and method |
Oct. 11, 2005 |
| 6947564 |
Stereophonic spatial expansion circuit with tonal compensation and active matrixing |
Sep. 20, 2005 |
| 6931136 |
Infrared emitter |
Aug. 16, 2005 |
| 6909787 |
Method and related apparatus for stereo vocal cancellation |
Jun. 21, 2005 |
| 6859238 |
Scaling adjustment to enhance stereo separation |
Feb. 22, 2005 |
| 6823071 |
Frequency modulation multiplex demodulation device |
Nov. 23, 2004 |
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