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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Bist; Anurag
Address:
Irvine, CA
No. of patents:
12
Patents:












Patent Number Title Of Patent Date Issued
7003093 Tone detection for integrated telecommunications processing February 21, 2006
Disclosed is an integrated tone detection processor for discriminating between tone and voice signals and determining the tones. The tone detection processor performs Automatic Gain Control (AGC) to normalize the power of the tone or voice signal. Further, the energy of the tone or v
6909782 Fast converging affine projection based echo canceller for sparse multi-path channels June 21, 2005
A first adaptive filter having a first filter length estimates a channel weight vector of an echo channel using an affine projection (AP) update. The echo channel receives a send input sequence and a receive input sequence. The echo channel has a plurality of sparse multi-path channels.
6738358 Network echo canceller for integrated telecommunications processing May 18, 2004
A network echo canceller for integrated telecommunications processing. The network echo canceller processes echoes in multiple communication channels over a packet network. The network echo canceller adapts a least means squared finite impulse response filter to each communication channe
6721359 Method and apparatus for motion compensated video coding April 13, 2004
Apparatus and methods are provided for encoding video data in a manner which significantly reduces the computation performed by the video encoder and the video decoder without suffering any degradation in the perceived quality of the compressed video data. In particular, apparatus and me
6700978 Method and apparatus for fast converging affine projection based echo canceller March 2, 2004
An adaptive filter estimates a channel weight vector of an echo channel using an affine projection (AP) update. The echo channel receives a send input sequence and a receive input sequence. The channel weight vector has first and second lengths when the adaptive filter operates in a firs
6603813 Video signal coding systems and processes using adaptive quantization August 5, 2003
A compression system and process employs a group of quantizers (or set of predefined quantized values) and involves the selection of the quantizers for each video frame or frame portion. For each frame portion, a selection of the most appropriate quantizer is made. The selection of which
6275527 Pre-quantization in motion compensated video coding August 14, 2001
Apparatus and methods are provided for encoding video data in a manner which significantly reduces the computation performed by the video encoder and the video decoder without suffering any degradation in the perceived quality of the compressed video data. In particular, apparatus and me
6272175 Video signal coding systems and processes using adaptive quantization August 7, 2001
A compression system and process employs a group of quantizers (or sets of predefined quantized values) and involes the selection of the quantizers for each video frame or frame portion. For each frame portion, a selection of the most appropriate quantizer is made. The selection of which
6249546 Adaptive entropy coding in adaptive quantization framework for video signal coding systems and p June 19, 2001
A compression system and process include adaptive quantization for selection of one quantizer, for each video frame or frame portion, from a group of quantizers, where each quantizer is a set of predefined quantizer values, and coding of the quantized values using a common entropy coding
6118822 Adaptive entropy coding in adaptive quantization framework for video signal coding systems and p September 12, 2000
A compression system and process include adaptive quantization for selection of one quantizer, for each video frame or frame portion, from a group of quantizers, where each quantizer is a set of predefined quantizer values, and coding of the quantized values using a common entropy coding
6111914 Adaptive entropy coding in adaptive quantization framework for video signal coding systems and p August 29, 2000
A compression system and process include adaptive quantization for selection of one quantizer, for each video frame or frame portion, from a group of quantizers, where each quantizer is a set of predefined quantizer values, and coding of the quantized values using a common entropy coding
6043844 Perceptually motivated trellis based rate control method and apparatus for low bit rate video co March 28, 2000
A method and apparatus for compressing and transmitting variable amounts of video data in real time over a channel having a fixed bandwidth. A trellis having a plurality of nodes is provided. Each of the plurality of nodes has an associated quantization parameter and bit number. The bit










 
 
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