Albert V Hsueh, 81Oakland, CA

7120162, Oct 10, 2006

Aug 3, 2000

09/631511

Behnam S. Katibian - Irvine CA, US
Albert A. Hsueh - Laguna Niguel CA, US

Skyworks Solutions, Inc. - Irvine CA

H04J 15/00

370464, 370437, 370431

A system for processing audio and video data for a wireless handset is provided. The system includes an audio sampler receiving audio data and converting the audio data into digitally encoded audio data. The system also includes a digital imager receiving image data and converting the image data to digitally encoded image data. A processor coupled to the audio sampler and the digital imager and receives the digitally encoded audio data and the digitally encoded image data and gives processing priority to one of the digitally encoded audio data and the digitally encoded image data.

7298760, Nov 20, 2007

Aug 28, 2006

11/510952

Behnam Katibian - Irvine CA, US
Albert Hsueh - Laguna Niguel CA, US

Skyworks Solutions, Inc. - Newport Beach CA

H04J 15/00

370464, 370431, 370437

A system for processing audio and video data for a wireless handset is provided. The system includes an audio sampler receiving audio data and converting the audio data into digitally encoded audio data. The system also includes a digital imager receiving image data and converting the image data to digitally encoded image data. A processor coupled to the audio sampler and the digital imager and receives the digitally encoded audio data and the digitally encoded image data and gives processing priority to one of the digitally encoded audio data and the digitally encoded image data.

5694521, Dec 2, 1997

Jan 11, 1995

8/371258

Eyal Shlomot - Irvine CA
Albert Achuan Hsueh - Laguna Niguel CA

Rockwell International Corporation - Newport Beach CA

G01L 502

395 271

A variable speed playback system exploits multiple-period similarities within a residual signal, and includes multiple-period template matching which may be applied to alter the excitation periodical structure, and thereby increase or decrease the rate of speech playback. Embodiments of the present invention enable accurate fast or slow speech playback for store and forward applications without changing the pitch period of the speech. A correlated multiple-period similarity measure is determined for an excitation signal within a compressor/expander. The multiple-period similarity enables overlap-and-add expansion or compression by a rational ratio. Energy variations at the onset and offset portions of the speech may be weighted by energy-based adaptive weight windows.

6275527, Aug 14, 2001

Jan 14, 1998

9/006972

Anurag Bist - Irvine CA
Wei Wu - Newbury Park CA
Albert A-Chuan Hsueh - Laguna Niguel CA

Conexant Systems, Inc. - Newport Beach CA

H04N 712

375240

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 methods are provided for determining which blocks might be zeroed out after quantization. This determination is performed after motion estimation, the classification of the frame as either an I frame, P frame, or a B frame, and the determination of a quantization step size (QP) for the block, but before DCT. If a given block is determined to be a "zero" quantized block, then the DCT, quantization, zig-zag scan and variable length coding steps are omitted, and a variable length code output is provided indicating that the block B is a "zero" quantized block. The present invention determines which blocks might be zeroed out after quantization by using one or more key features of the motion compensated blocks which will help in classifying these blocks into zero and non-zero blocks. Examples of these features include the mean absolute value of a block, the mean square error of a block, the block variance, the mean absolute difference of a block, and the maximum value in a block.