1
Henrique S Malvar: Scalable audio coder and decoder. Microsoft Corporation, Edmond A DeFrank, Lyon Harr & DeFrank, February 22, 2000: US06029126 (248 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


2
Henrique S Malvar: System and method for masking quantization noise of audio signals. Microsoft Corporation, Edmond A DeFrank, Lyon Harr & DeFrank, May 2, 2000: US06058362 (139 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


3
Henrique S Malvar: System and method for partially whitening and quantizing weighting functions of audio signals. Microsoft Corporation, Edmond A DeFrank, Craig S Fischer, Lyon Harr & Defrank L, May 29, 2001: US06240380 (128 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


4
Henrique S Malvar: System and method for progessively transform coding digital data. Microsoft Corporation, Craig S Fischer, Lyon & Harr L, August 3, 2004: US06771828 (120 worldwide citation)

The present invention is embodied in a system and method for compressing image data using a lapped biorthogonal transform (LBT). The present invention encodes data by generating coefficients using a hierarchical LBT, reorders the coefficients in a data-independent manner into groups of similar data, ...


5
Henrique S Malvar: System and method for producing a fixed effort quantization step size with a binary search. Microsoft Corporation, Edmond A DeFrank, Lyon Harr & DeFrank, January 30, 2001: US06182034 (116 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


6
Henrique S Malvar: Method and system for adapting a digitized signal processing system for block processing with minimal blocking artifacts. PictureTel Corporation, Lahive & Cockfield, June 28, 1988: US04754492 (103 worldwide citation)

A method and apparatus for processing n-dimensional digitized signals containing at least two adjacent blocks of digitized sample values. The digitized signal is transformed in accordance with a spatial transform operator. The spatial transform operator is characterized by similar size blocks to the ...


7
Henrique S Malvar: Modulated complex lapped transform for integrated signal enhancement and coding. Microsoft Corporation, Katrina A Lyon, Lyon & Harr, December 17, 2002: US06496795 (77 worldwide citation)

The present invention is embodied in a system and method for performing spectral analysis of a digital signal having a discrete duration by spectrally decomposing the digital signal at predefined frequencies uniformly distributed over a sampling frequency interval into complex frequency coefficients ...


8
Henrique S Malvar: System and method for modeling probability distribution functions of transform coefficients of encoded signal. Microsoft Corporation, Edmond A DeFrank, Craig S Fischer, Lyon Harr & DeFrank L, June 26, 2001: US06253165 (74 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


9
Henrique S Malvar: System and method for entropy encoding quantized transform coefficients of a signal. Microsoa Corporation, Edmond A DeFrank, Craig S Fischer, Lyon Harr & DeFrank, July 3, 2001: US06256608 (72 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


10
Henrique S Malvar, Li wei He, Ross Cutler: High-quality gradient-corrected linear interpolation for demosaicing of color images. Microsoft Corporation, Lyon & Harr L, Craig S Fischer, March 10, 2009: US07502505 (71 worldwide citation)

A gradient-corrected linear interpolation method and system for the demosaicing of color images. The method and system compute an interpolation using some a current technique (preferably a bilinear interpolation technique to reduce computational complexity), compute a correction term (such as a grad ...



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