Searching US Patent Collection...

	PAT. NO.		Title
1	8,751,219		Method and related device for simplifying psychoacoustic analysis with spectral flatness characteristic values
2	8,117,027		Method and apparatus for introducing information into a data stream and method and apparatus for encoding an audio signal
3	7,933,416		Method and apparatus for encoding and decoding multi-channel signals
4	7,787,632		Support of a multichannel audio extension
5	7,715,567		Noise reduction in a stereo receiver
6	7,454,327		Method and apparatus for introducing information into a data stream and method and apparatus for encoding an audio signal
7	7,110,549		Noise reduction in a stereo receiver
8	6,901,246		Suppressed cycle based carrier modulation using amplitude modulation
9	6,591,241		Selecting a coupling scheme for each subband for estimation of coupling parameters in a transform coder for high quality audio
10	6,574,602		Dual channel phase flag determination for coupling bands in a transform coder for high quality audio
11	6,446,037		Scalable coding method for high quality audio
12	6,341,165		Coding and decoding of audio signals by using intensity stereo and prediction processes