Tony S Wu

6353685, Mar 5, 2002

Aug 31, 1999

09/386251

Tony Hung-Yao Wu - Milpitas CA
Wei-Chun Lee - Mountain View CA
Chia-Hung Chen - Sunnyvale CA
Der-Ren Chu - San Jose CA
Sophia Wei-Chun Kao - Cupertino CA

Divio, Inc. - Sunnyvale CA

G06K 946

382250, 382251, 37524003, 3752402

An image compression apparatus for compressing image data provided to an input terminal and providing compressed data to an output terminal includes a 4Ã4 weighted digital cosine transformer (DCT) coupled to the input terminal and configured to convert the image data into weighted frequency data. A zigzag circuit is coupled to the DCT and configured to zigzag process the frequency data and generate create zigzag data. A Q-factor estimator is coupled to the DCT and configured to estimate the frequency data and generate a Q-factor. A DC coding circuit is coupled to the zigzag circuit and configured to code the zigzag data and generate a DC code. A quantization circuit is coupled to the zigzag circuit and the Q-factor estimator and configured to quantize the zigzag data based on the Q-factor and generate quantized data. A run-length coding circuit coupled to the DC coding circuit and the quantization circuit and configured to encode the quantized data to create variable length data as the compressed data to the output terminal. In this manner, the original image is compressed.

6512852, Jan 28, 2003

Mar 5, 1999

09/263588

Tony H. Wu - Milpitas CA

Divio, Inc. - Sunnyvale CA

G06K 936

382232

New and improved methods and apparatus for concatenating data words from a bitstream. These techniques are especially suited to digital video applications, in which input to a video decoder is generated in order to determine run lengths and amplitudes. This implementation is suitable for widely-used image compression standards that integrate various algorithms into a compression system, such as the standards specified in the Digital Video Standard (the âBlue Bookâ).

6594398, Jul 15, 2003

Mar 23, 2000

09/535063

Tony H. Wu - Milpitas CA

Divio, Inc. - Sunnyvale CA

G06K 936

382245, 382251, 37524003

New and improved methods and apparatus for run-length encoding video data. These techniques are especially suited to digital video applications, in which input to a video decoder is generated in order to determine run lengths and amplitudes. The implementations are suitable for widely-used image compression standards that integrate various algorithms into a compression system, such as the standards specified in the Digital Video Standard (the âBlue Bookâ).

6614934, Sep 2, 2003

Mar 27, 2000

09/536252

Tony H. Wu - Milpitas CA

Divio, Inc. - Sunnyvale CA

G06K 936

382232

A method and apparatus for concatenating data words from a bitstream includes a scratch memory ( ) containing last words of unfinished blocks and left-aligned extra data words of finished blocks. A previous register ( ) holds one last word of an unfinished block. A next register ( ) holds a first of possibly many extra data words associated with the last word. A bit detector ( ), coupled to the previous register ( ) and the next register ( ), first concatenates the last word and the first extra data word and identifies selected bits for the detection of a valid code word. When no more valid code words can be found from the selected bits, and more data associated with the unfinished block exists, the first extra data word is moved to the previous register ( ) and a second extra data word is moved to the next register ( ). The first extra data word and the second extra data word are concatenated for the detection of another valid code word. In various embodiments of the present invention, a start bit register ( ) and a remaining bits register ( ) hold values that are used in concatenation and the detection of valid code words.

7771355, Aug 10, 2010

Jul 29, 2005

11/192988

Tony Wu - San Jose CA, US

Sonowise, Inc. - San Jose CA

A61B 8/12

600437, 600438, 600440, 600441, 600442, 600443, 600444, 600445, 600446, 600447, 600450, 600459, 600463, 600465, 382128, 382130, 382131, 382132

In one embodiment of the invention, there is an ultrasound processing system that communicates images over a single asynchronous serial channel according to a scheme that does not require an isochronous serial channel and that switches among ultrasound imaging modes robustly. For example, the system is configured to packetize ultrasound image data of at least one ultrasound imaging mode into a stream of data frames and to convey the stream of data frames via the asynchronous channel. Each data frame includes indication of the ultrasound imaging mode and includes ultrasound-imaging-mode-specific imaging parameters. Other embodiments exist.

8016758, Sep 13, 2011

Sep 8, 2005

11/222059

Tony Wu - San Jose CA, US

SonoWise, Inc. - San Jose CA

A61B 8/00
G06F 3/05

600440, 600437, 715719

An ultrasonic image scanning system for scanning an organic object that includes a display system for displaying a scanned image of the organic object in a plurality of display modes wherein the display system further includes a user input device sensor for sensing a motion of a user input device in at least one of display modes to automatically switch from one display mode to a different display mode. Furthermore, the display system further counts a length of time the user input device staying idle in at least one of the display modes for switching the display mode back to a last display mode at a predefined idle time limit.

8317707, Nov 27, 2012

Jun 30, 2010

12/826937

Tony Wu - San Jose CA, US

Sonowise, Inc. - San Jose CA

A61B 8/14

600443, 600437, 600439, 600459, 382128, 382130, 709230, 709232

In one embodiment of the invention, there is an ultrasound processing system that communicates images over a single asynchronous serial channel according to a scheme that does not require an isochronous serial channel and that switches among ultrasound imaging modes robustly. For example, the system is configured to packetize ultrasound image data of at least one ultrasound imaging mode into a stream of data frames and to convey the stream of data frames via the asynchronous channel. Each data frame includes indication of the ultrasound imaging mode and includes ultrasound-imaging-mode-specific imaging parameters. Other embodiments exist.

20070083110, Apr 12, 2007

Oct 9, 2005

11/246731

Tony Wu - San Jose CA, US
Phung Hue - Cupertino CA, US

A61B 8/00

600437000

An ultrasonic image scanning system for scanning an organic object includes a beam former that provides a phase velocity adjustment function for producing an ultrasonic image with a programmable phase velocity. The ultrasonic image scanning system further includes a beam profile analysis function for calculating an optimal phase velocity with a user controller to adjust the phase velocity until a scan image of best image quality is achieved. Alternately, the system may provide an automatic phase velocity-scanning controller for automatically scanning through a range of phase velocities and selecting a best phase velocity generating a scanning image of a best quality. The system further includes a region of interest (ROI) controller for a user to select a region for scanning with a specific focal area for optimizing the phase velocity. The system may further provide a maximum gradient analyzer for selecting an image of a best quality in optimizing the phase velocity. A digital controller may also provide a real time programmable control by applying different control algorithms with combination of phase velocity and attenuation adjustment. A hardness computational processor is implemented to determine a tissue hardness using the phase velocity and in combination with the attenuation parameter.