H04S - Stereophonic systems

More topics under "H04S - Stereophonic systems" (15,617)
H04S 1 - Two-channel systems (4,182)
H04S 3 - Systems employing more than two channels, e.g. quadraphonic (4,597)
H04S 5 - Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation (2,758)
H04S 7 - Indicating arrangements; Control arrangements, e.g. balance control (4,080)

Patents for H04S - Stereophonic systems (78)
09/2012
09/12/2012	EP2249336B1 Method and receiver for high frequency reconstruction of a stereo audio signal
08/2012
08/23/2012	US20120213377 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
08/14/2012	US8243936 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
07/2012
07/18/2012	CN101996634B Efficient and scalable parametric stereo coding for low bitrate applications
05/2012
05/30/2012	CN101887724B Decoding method for encoding power spectral envelope
04/2012
04/03/2012	CA2496474C Bass management systems
02/2012
02/14/2012	US8116460 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
12/2011
12/20/2011	US8081763 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
12/06/2011	US8073144 Stereo balance interpolation
11/2011
11/15/2011	US8059826 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
09/2011
09/06/2011	US8014534 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
03/2011
03/30/2011	CN101996634A Efficient and scalable parametric stereo coding for low bitrate applications
02/2011
02/23/2011	EP1600945B1 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
12/2010
12/08/2010	CN1758337B Efficient and scalable parametric stereo coding for low bitrate audio coding applications
11/2010
11/17/2010	CN1758338B Efficient and scalable parametric stereo coding for low bitrate audio coding applications
11/17/2010	CN101887724A Efficient and scalable parametric stereo coding for low bitrate applications
11/10/2010	EP2249336A1 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
10/2010
10/06/2010	CN1758335B Efficient and scalable parametric stereo coding for low bit rate audio coding applications
08/2010
08/18/2010	CN1758336B Efficient and scalable parametric stereo coding for low bit rate audio coding applications
04/2010
04/28/2010	CN1701635B Bass management systems
04/14/2010	EP1603117B1 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
02/2010
02/25/2010	US20100046761 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
01/2010
01/20/2010	EP1603119B1 Adaptive control of echo tail for pseudo stereo audio synthesis
12/2009
12/24/2009	US20090316914 Efficient and Scalable Parametric Stereo Coding for Low Bitrate Audio Coding Applications
09/2009
09/23/2009	EP2015292B1 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
08/2009
08/26/2009	EP1547439B1 Bass management systems
01/2009
01/14/2009	EP2015292A1 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
06/2008
06/24/2008	US7391869 Base management systems
06/03/2008	US7382886 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
01/2007
01/18/2007	WO2005015955A3 Audio reproduction system
10/2006
10/11/2006	CN1279790C Efficient and scalable parametric stereo coding for low bitrate applications
07/2006
07/13/2006	DE60206390T2 Effiziente und skalierbare parametrische stereocodierung für anwendungen mit niedriger bitrate Efficient and scalable parametric stereo coding for low bitrate applications
06/2006
06/07/2006	EP1665884A2 Audio reproduction system
04/2006
04/12/2006	CN1758338A Efficient and scalable parametric stereo coding for low bitrate audio coding applications
04/12/2006	CN1758337A Efficient and scalable parametric stereo coding for low bitrate audio coding applications
04/12/2006	CN1758336A Efficient and scalable parametric stereo coding for low bit rate audio coding applications
04/12/2006	CN1758335A Efficient and scalable parametric stereo coding for low bit rate audio coding applications
02/2006
02/09/2006	US20060029231 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
02/02/2006	US20060023895 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
02/02/2006	US20060023891 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
02/02/2006	US20060023888 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
12/2005
12/07/2005	EP1603119A2 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
12/07/2005	EP1603118A2 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
12/07/2005	EP1603117A2 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
11/2005
11/30/2005	EP1600945A2 Efficient and scalable parametric stereo coding for low bitrate audio coding applications
11/23/2005	CN1701635A Bass management systems
09/2005
09/28/2005	EP1410687B1 Efficient and scalable parametric stereo coding for low bitrate applications
06/2005
06/29/2005	EP1547439A2 Bass management systems
06/08/2005	CN1205753C Integrated audio mixer
03/2005
03/10/2005	WO2005004537A3 Bass management systems
03/10/2005	US20050053242 Efficient and scalable parametric stereo coding for low bitrate applications
03/02/2005	EP1120013A4 Integrated audio mixer
02/2005
02/17/2005	WO2005015955A2 Audio reproduction system
01/2005
01/13/2005	WO2005004537A2 Bass management systems
08/2004
08/25/2004	CN1524400A Efficient and scalable parametric stereo coding for low bitrate applications
07/2004
07/01/2004	US20040125967 Base management systems
04/2004
04/21/2004	EP1410687A1 Efficient and scalable parametric stereo coding for low bitrate applications
01/2003
01/23/2003	WO2003007656A1 Efficient and scalable parametric stereo coding for low bitrate applications
01/2002
01/23/2002	CN1332904A Integrated audio mixer
09/2001
09/05/2001	CN2446747Y Flasher and its control circuit
08/2001
08/01/2001	EP1120013A2 Integrated audio mixer
11/2000
11/28/2000	US6154161 Integrated audio mixer
07/2000
07/20/2000	WO2000021337A3 Integrated audio mixer with alternating quantization output
04/2000
04/13/2000	WO2000021337A2 Integrated audio mixer with alternating quantization output
04/13/2000	CA2344890A1 Integrated audio mixer with alternating quantization output
12/1998
12/01/1998	CA2058984C Polyphonic coding
04/1998
04/15/1998	EP0478615B2 Polyphonic coding
05/1997
05/07/1997	EP0418252B1 Stereo synthesizer and corresponding method
04/1995
04/26/1995	EP0478615B1 Polyphonic coding
04/1992
04/21/1992	CA1299111C Stereo synthesizer
04/08/1992	EP0478615A1 Polyphonic coding.
03/1992
03/18/1992	EP0252102B1 A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal
12/1990
12/16/1990	WO1990016136A1 Polyphonic coding
10/1990
10/04/1990	WO1990011670A1 Stereo synthesizer
07/1989
07/18/1989	US4850021 Method and a circuit for decoding four channel signals which are coded in a matrix and available in the form of a two-channel signal
06/1989
06/20/1989	US4841572 Stereo synthesizer
01/1988
01/13/1988	EP0252102A1 A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal.
06/1987
06/18/1987	WO1987003771A1 A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal