Wei Hao Wu

6721359, Apr 13, 2004

Apr 6, 2001

09/828535

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

Skyworks Solutions, Inc. - Irvine CA

H04B 166

37524003, 37524023, 37524002, 3752402, 37524012, 37524026, 37524024, 382251, 382250, 382246, 382238

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 âzeroâ 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 âzeroâ 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 nonzero 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.

20070130358, Jun 7, 2007

Nov 20, 2006

11/561529

Mike Severa - Pasadena CA, US
Michael Foster - San Diego CA, US
Wei Wu - San Diego CA, US
David Kosiba - Jamul CA, US
Uma Paranjape - San Diego CA, US

G06F 15/16

709231000

A method for facilitating multimedia streaming using server-side playlists comprises a plurality of operations. An operation is performed for streaming current playlist selection data from a server that supports server-side playlists to a client having a jitter buffer. An operation is performed for receiving at the server a request for streaming multimedia content corresponding to a different playlist selection. An operation is performed for communicating client-server specification information between the server and the client for enabling the different playlist selection data to be streamed from the server to the client at a data transfer rate greater than a maximum data presentation rate. The operation for communicating client-server specification information includes transmitting from the server for reception by the client information acknowledging that the server supports faster than real-time streaming and receiving at the server information designating a current size of the jitter buffer and a maximum data rate at which data is receivable by the client. The server performs an operation for streaming the different playlist selection data from the server for reception by the client after the operation for communicating client-server specification information is performed. The different playlist selection data is streamed at a data transfer rate greater than the maximum data transfer rate at which data is outputable from the jitter buffer.

20110307626, Dec 15, 2011

Jun 8, 2011

13/156040

Mike Severa - Pasadena CA, US
Michael Foster - San Diego CA, US
Wei Wu - San Diego CA, US
David Kosiba - Jamul CA, US
Uma Paranjape - San Diego CA, US

G06F 15/16

709231

A method for facilitating multimedia streaming using server-side playlists comprises a plurality of operations. An operation is performed for streaming current playlist selection data from a server that supports server-side playlists to a client having a jitter buffer. An operation is performed for receiving at the server a request for streaming multimedia content corresponding to a different playlist selection. An operation is performed for communicating client-server specification information between the server and the client for enabling the different playlist selection data to be streamed from the server to the client at a data transfer rate greater than a maximum data presentation rate. The operation for communicating client-server specification information includes transmitting from the server for reception by the client information acknowledging that the server supports faster than real-time streaming and receiving at the server information designating a current size of the jitter buffer and a maximum data rate at which data is receivable by the client. The server performs an operation for streaming the different playlist selection data from the server for reception by the client after the operation for communicating client-server specification information is performed. The different playlist selection data is streamed at a data transfer rate greater than the maximum data transfer rate at which data is outputable from the jitter buffer.

62755277, 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.

20200117171, Apr 16, 2020

Oct 10, 2018

16/156331

- Villach, AT
Wei WU - Rancho Palos Verdes CA, US

G05B 19/4155
H04L 25/49

A motor controller includes a package configured to interface with a power inverter for motor control; a wireless communication integrated circuit (IC) integrated within the package and configured to receive uplink wireless communication data and to process the uplink wireless communication data, and configured to transmit downlink wireless communication data; a motor controller IC integrated within the package and configured to perform a motor control function, including generating pulse width modulation (PWM) control signals for multi-phase motor control; and an intercommunication interface coupled to the wireless communication IC and the motor controller IC, the intercommunication interface including a plurality of inter-communication wires for information exchange of uplink information and downlink information between the wireless communication IC and the motor controller IC.

20200067430, Feb 27, 2020

Aug 24, 2018

16/112291

- Villach, AT
Wei Wu - Rancho Palos Verdes CA, US

H02P 6/16
G01D 5/14
H02K 29/08

A Hall sensor circuit includes a first Hall element and a second Hall element, first and second Analog-to-Digital Converter (“ADC”) channel inputs passively coupled to first and second output nodes of the first Hall element, third and fourth ADC channel inputs passively coupled to the first and second output nodes of the second Hall element, a first ADC output for providing a first digital output signal, and a second ADC output for providing a second digital output signal. The Hall element outputs can be directly coupled to the ADC or coupled through a passive resistor-capacitor filter.

20180345580, Dec 6, 2018

May 30, 2018

15/993197

- Los Angeles CA, US
Yuanrui Li - Los Angeles CA, US
Huachao Mao - Los Angeles CA, US
Wei Wu - Los Angeles CA, US

B29C 64/268
B29C 64/393
B29C 64/277
B29C 64/245
B23K 26/067
B29C 67/04

Methods, systems, and apparatus for multi-scale stereolithography. The apparatus includes a light source for providing a laser beam having a first shape and a first size. The apparatus includes a dynamic aperture having multiple apertures that are of the same or different sizes or shapes. The dynamic aperture is configured to receive the laser beam and modify at least one of the shape or the size of the laser beam. The apparatus includes a platform for holding an object to be printed. The apparatus includes a processor connected to at least one of the light source, the dynamic aperture or the platform. The processor is configured to move the platform to direct the laser beam or direct the laser beam to cure resin onto the object to be printed using a first aperture of the multiple apertures to form the object.

20180191284, Jul 5, 2018

Jan 5, 2017

15/399558

- Villach, AT
Wei Wu - Rancho Palos Verdes CA, US

Infineon Technologies Americas Corp. - El Segundo CA

H02P 21/18
H02P 21/14
H02P 27/08
H02P 6/17

In some examples, a controller device includes processing circuitry configured to determine an alpha voltage and a beta voltage based on time durations for control signals for power-conversion circuitry that drives an electric motor including a rotor. In some examples, the controller device also includes a flux estimator configured to estimate a speed of the rotor and an angle of the rotor based on the alpha voltage and the beta voltage.