Steven S Yang

US Patent:

6421166, Jul 16, 2002

Filed:

May 9, 2000

Appl. No.:

09/567388

Inventors:

Stephan P. Velsko - Livermore CA
Steven T. Yang - Danville CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G02F 139

US Classification:

359330, 359326

Abstract:

This improved Frequency Agile Optical Parametric Oscillator provides near on-axis pumping of a single QPMC with a tilted periodically poled grating to overcome the necessity to find a particular crystal that will permit collinear birefringence in order to obtain a desired tuning range. A tilted grating design and the elongation of the transverse profile of the pump beam in the angle tuning plane of the FA-OPO reduces the rate of change of the overlap between the pumped volume in the crystal and the resonated and non-resonated wave mode volumes as the pump beam angle is changed. A folded mirror set relays the pivot point for beam steering from a beam deflector to the center of the FA-OPO crystal. This reduces the footprint of the device by as much as a factor of two over that obtained when using the refractive telescope design.

US Patent:

6469700, Oct 22, 2002

Filed:

Jun 24, 1998

Appl. No.:

09/104160

Inventors:

Aaftab Munshi - Los Gatos CA
Steven Yang - Fremont CA

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

G06T 1500

US Classification:

345419, 345425

Abstract:

The number of computations performed in rendering graphics is reduced by computing certain terms only at the beginning of each scanline. A scanline gradient is calculated once at the beginning of each scanline for each of two texture values with respect to the x-coordinate of the scanline. Following the scanline gradient calculations at the beginning of each scanline, a pixel gradient is calculated for each pixel of the scanline with respect to the y-coordinate of the scanline. The sum of the squares of the scanline gradients and the pixel gradients are compared, and the larger of the two quantities is selected to be a maximum Rho constant term for the corresponding pixel, wherein the maximum Rho constant is used to select a texture map for rendering the corresponding pixel. Furthermore, at the beginning of each scanline, a pixel gradient may be calculated for each of two texture values for a first pixel of the scanline with respect to the y-coordinate of the scanline. Derivatives are calculated for the pixel gradients, wherein pixel gradients are found using the derivatives, thereby eliminating the calculation of pixel gradients for each pixel.

US Patent:

7910429, Mar 22, 2011

Filed:

Apr 7, 2004

Appl. No.:

10/821100

Inventors:

Zhong Dong - San Jose CA, US
Chuck Jang - Fremont CA, US
Ching-Hwa Chen - Milpitas CA, US
Chunchieh Huang - Fremont CA, US
Jin-Ho Kim - San Jose CA, US
Vei-Han Chan - San Jose CA, US
Chung Wai Leung - Milpitas CA, US
Chia-Shun Hsiao - Cupertino CA, US
George Kovall - Campbell CA, US
Steven Ming Yang - Milpitas CA, US

Assignee:

ProMOS Technologies, Inc. - Hsin-Chu

International Classification:

H01L 21/336

US Classification:

438257, 257324, 257E21209, 257E29129, 257E21625

Abstract:

Conventional fabrication of sidewall oxide around an ONO-type memory cell stack usually produces Bird's Beak because prior to the fabrication, there is an exposed sidewall of the ONO-type memory cell stack that exposes side parts of a plurality of material layers respectively composed of different materials. Certain materials in the stack such as silicon nitrides are more difficult to oxidize than other materials in the stack such polysilicon. As a result oxidation does not proceed uniformly along the multi-layered height of the sidewall. The present disclosure shows how radical-based fabrication of sidewall dielectric can help to reduce the Bird's Beak formation. More specifically, it is indicated that short-lived oxidizing agents (e. g. , atomic oxygen) are able to better oxidize difficult to oxidize materials such as silicon nitride and the it is indicated that the short-lived oxidizing agents alternatively or additionally do not diffuse as deeply through already oxidized layers of the sidewall such as silicon oxide layers. As a result, a more uniform sidewall dielectric can be fabricated with more uniform breakdown voltages along it height.

US Patent:

20060246411, Nov 2, 2006

Filed:

Apr 27, 2006

Appl. No.:

11/412497

Inventors:

Steven Yang - Palo Alto CA, US

International Classification:

G09B 7/00

US Classification:

434323000

Abstract:

A learning aid which can be implemented in computer software where a user's responses to a timed worksheet are used to adjust parameters used in selecting the problems and time limit in a successively timed worksheet. Parameters can include problem complexity, the mode or type of problems having a given complexity, the number of problems, worksheet time limit, and measures of user performance including time remaining and the number of correct, incorrect and non-completed answers to problems. Performance is tracked over successive worksheets in order to arrive at a user's competency level and to provide the user feedback tailored to enhance the learning experience.

US Patent:

20130172965, Jul 4, 2013

Filed:

Dec 20, 2012

Appl. No.:

13/722844

Inventors:

Pine Development Corporation - Mountain View CA, US
Alexander A. Brownell - Bountiful UT, US
Steven T. Yang - Danville CA, US

Assignee:

Pine Development Corporation - Mountain View CA

International Classification:

A61N 5/00
A61N 5/06

US Classification:

607100

Abstract:

The present disclosure provides various systems and methods for inducing cutaneous sensations by delivering electromagnetic radiation to directly or indirectly excite neural tissue. An electromagnetic radiation source, such as one or more infrared lasers, may be used to transcutaneously excite neural tissue. The excited neural tissue may be interpreted by the user's nervous system as cutaneous sensations. Accordingly, a system as described herein may be used to induce sensations to allow actual cutaneous sensations to be simulated. A system for inducing a cutaneous sensation via transcutaneously focused electromagnetic radiation may be incorporated in a display to provide cutaneous sensation feedback or used as a separate accessory component associated with a display. Numerous additional applications and variations are provided herein.

US Patent:

58961356, Apr 20, 1999

Filed:

Jul 30, 1997

Appl. No.:

8/903496

Inventors:

Steven Shi-Long Yang - Fremont CA

Assignee:

Seiko Epson Corporation - Tokyo

International Classification:

G06T 1550

US Classification:

345427

Abstract:

A system and method for generating three-dimensional (3D) color images with a simulated light sources. The operation of producing 3D images involves a complicated scheme of time consuming instructions issued by a controller to obtain 3D images. The present invention performs this result faster and more efficiently than conventional technology. The production of 3D color images according to the present invention is performed by a system. A controller manages the flow of data for the system. Control of the system generally occurs as follows: Signal characteristics representing light direction, view direction and a normal unit vector enter an input queue. The data is then written into a register file at assigned locations. After being written into the register file, light signals are pipelined into a floating point multiplier and accumulator (FMAC) for computation. Once the FMAC performs the requested computation it is either written back into the register file at a designated location in the register file or reused immediately in a next cycle.

US Patent:

57195994, Feb 17, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/475872

Inventors:

Steven Yang - Fremont CA

Assignee:

Seiko Epson Corporation - Tokyo

International Classification:

G06T 740
G06T 1550

US Classification:

345430

Abstract:

Methods and apparatus for mapping texture, which may encode three-dimensional elements, from a first raster of pixels (e. g. , a texture map) to a second raster of pixels (e. g. , a displayable frame buffer or other target map). The pixels of the first raster include a recession component q and the pixels of the second raster include a recession component w. Successive pixels of the target map are mapped to corresponding pixels of the texture map, linearly interpolated to account for recession, and assigned values consistent with the interpolation. Unlike prior systems, which are designed to scan pixels along horizontal rows or vertical columns, the invention scans along lines where the quantity q/w is constant. These scan lines are generally parallel to one another, obviating the need for repeated slope computations; they also tend to correspond to similar levels of detail in prefiltered (e. g. , mip map) texture representations, obviating the need for shifting among representations.

US Patent:

20210034865, Feb 4, 2021

Filed:

Jul 30, 2019

Appl. No.:

16/526744

Inventors:

- Fremont CA, US
Simanta Gautam - Palo Alto CA, US
Bruno Brasil Ferrari Faviero - Coconut Creek FL, US
Steven Posun Yang - Palo Alto CA, US
Jay Harshadbhai Patel - Sunnyvale CA, US
Ian Cinnamon - Sherman Oaks CA, US

International Classification:

G06K 9/00
G06K 9/62

Abstract:

Disclosed is an object-detection system configured to utilize multiple object-detection models that generate respective sets of object-detection conclusions to detect objects of interest within images of scenes. The object-detection system is configured to implement a series of functions to reconcile any discrepancies that exist in its multiple sets of object-detection conclusions in order to generate one set of conclusions for each perceived object of interest within a given image.