Steven 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:

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.

US Patent:

20200020459, Jan 16, 2020

Filed:

Jul 12, 2019

Appl. No.:

16/510082

Inventors:

- Livermore CA, US
David A. Alessi - Livermore CA, US
Maurice B. Aufderheide - Livermore CA, US
John E. Heebner - San Ramon CA, US
Andreas J. Kemp - Livermore CA, US
Otto L. Landen - Hayward CA, US
Andrew J. Mackinnon - Livermore CA, US
Raluca A. Negres - Pleasanton CA, US
Craig W. Siders - Livermore CA, US
Scott C. Wilks - Mountain View CA, US
Wade H, Williams - Manteca CA, US
Steven T. Yang - Danville CA, US
Thomas M. Spinka - Livermore CA, US

Assignee:

LAWRENCE LIVERMORE NATIONAL SECURITY, LLC - Livermore CA

International Classification:

G21K 5/02
H01S 3/00
H01S 3/23

Abstract:

A method for increasing the MeV hot electron yield and secondary radiation produced by short-pulse laser-target interactions with an appropriately high or low atomic number (Z) target. Secondary radiation, such as MeV x-rays, gamma-rays, protons, ions, neutrons, positrons and electromagnetic radiation in the microwave to sub-mm region, can be used, e.g., for the flash radiography of dense objects.

US Patent:

20150034596, Feb 5, 2015

Filed:

Mar 13, 2012

Appl. No.:

14/004873

Inventors:

Selim Elhadj - Livermore CA, US
Paul Geraghty - Fremont CA, US
Michael A. Johnson - Pleasanton CA, US
Manyalibo Joseph Matthews - Livermore CA, US
Steven T. Yang - Danville CA, US

International Classification:

C03C 15/00
C23F 1/04
C04B 41/53

US Classification:

216 65, 15634533, 15634527

Abstract:

A system of gas-assisted laser machining is provided. The system includes a nozzle that delivers a gas jet at the surface of the work piece and a laser source that can focus a laser beam on the surface of the work piece. A mixture of a reactive gas and a carrier gas is provided via the gas jet. The reactive gas reacts with the material and helps to enhance the evaporation rate of the material and at the same time helps reduce the temperature at which the enhanced evaporation rate can be achieved. Use of reactive gases also helps to reduce the residual stress on the material, minimize material flow during evaporation, reduce re-deposited material, and eliminate rims on the pit structures formed as a result of the material removal.