Yan M Li

US Patent:

6356986, Mar 12, 2002

Filed:

Apr 14, 1999

Appl. No.:

09/291187

Inventors:

Tony Solomon - Hillsboro OR
Yan Li - Hillsboro OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 1200

US Classification:

711157, 711 5, 711118, 711127, 711154, 711172

Abstract:

A method and apparatus for analyzing the configuration of a computer main memory. A complex memory controller, which imposes restrictions on the memorys configuration, determines whether a user-selected configuration is consistent with those restrictions. The results of the determination are then reported to the user. The results may also be used to program the memory controller.

US Patent:

20130128222, May 23, 2013

Filed:

Apr 6, 2012

Appl. No.:

13/441733

Inventors:

David HUANG - Portland OR, US
Yan LI - Portland OR, US
Ou TAN - Portland OR, US
Maolong TANG - Portland OR, US

Assignee:

UNIVERSITY OF SOUTHERN CALIFORNIA - Los Angeles CA

International Classification:

A61B 3/10

US Classification:

351206, 351246

Abstract:

This invention discloses methods and systems for measuring corneal epithelial thickness and power, stromal thickness, subepitheila corneal power and topography. The systems and methods disclosed herein are non-invasive, non-contact and automated imaging methods which preferably makes use of Fourier-domain optical tomography. Also disclosed herein are scanning patterns and image analysis methods for utilizing and analyzing Fourier-domain optical coherence tomography images to obtain information about conical epithelial and stromal properties as well as parameters useful for evaluating the properties. The methods and systems described herein are useful as eye disease diagnostic tools and eye surgery planning tools.

US Patent:

58357041, Nov 10, 1998

Filed:

Nov 6, 1996

Appl. No.:

8/744625

Inventors:

Yan Li - Hillsboro OR
Mahesh Natu - Beaverton OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 1328

US Classification:

39518318

Abstract:

A method of testing at least a selected portion of system memory for a microprocessor system is disclosed, the microprocessor system having burst mode capability to transfer data values between the microprocessor and the system memory via a system bus. The method includes the steps of: writing at least a selected portion of system memory with a predetermined test pattern using the burst mode capability of the microprocessor system; reading back values from the at least a selected portion of system memory using the burst mode capability of the microprocessor system; and comparing the values read from the at least a selected portion of system memory with the predetermined test pattern written.

US Patent:

20200054208, Feb 20, 2020

Filed:

Aug 21, 2019

Appl. No.:

16/547110

Inventors:

- Portland OR, US
Yan Li - Portland OR, US
David Huang - Portland OR, US

Assignee:

Oregon Health & Science University - Portland OR

International Classification:

A61B 3/107
G06T 7/00
G06T 7/60
G06K 9/62
A61B 3/00
A61B 3/10
G06T 7/62

Abstract:

Disclosed are systems and methods for characterizing corneal shape abnormalities. These methods may be used to differentiate corneas having subclinical keratoconus from other conditions which cause distortion of corneal shape, including warpage of the cornea due to contact lens wear. Also disclosed is classification scheme to aid diagnosis of corneal conditions and thereby guide clinical decision making regarding patient treatment. This classification scheme is based on computed properties of corneal shape, is amenable to automation, and may be implemented in an integrated system or provided in the form of software encoded on a computer-readable medium.

US Patent:

20180317851, Nov 8, 2018

Filed:

Nov 7, 2017

Appl. No.:

15/805392

Inventors:

- Portland OR, US
David Huang - Portland OR, US
Yan Li - Portland OR, US
Acner Camino - Portland OR, US

International Classification:

A61B 5/00
A61B 5/026

Abstract:

Described herein is an algorithm to remove decorrelation noise due to bulk motion in optical coherence tomography angiography (OCTA). OCTA B-frames are divided into segments within which the bulk motion velocity could be assumed constant. This velocity is recovered using linear regression of decorrelation versus the logarithm of reflectance in axial lines (A-lines) identified as bulk tissue by percentile analysis. The fitting parameters are used to calculate a reflectance-adjusted threshold for bulk motion decorrelation. Below this threshold, voxels are identified as non-flow tissue, and their flow values are set to zeros. Above this threshold, the voxels are identified as flow voxels and bulk motion velocity is subtracted from each using a nonlinear decorrelation-velocity relationship. Compared to the median-subtraction method, the bulk motion subtraction algorithm described herein improves angiogram signal-to-noise ratio, contrast, vessel density repeatability, and bulk motion noise cleanup, while preserving the connectivity of the vascular networks in the angiogram.

US Patent:

20180000342, Jan 4, 2018

Filed:

Jun 30, 2017

Appl. No.:

15/639842

Inventors:

- Portland OR, US
Yan Li - Portland OR, US
David Huang - Portland OR, US

International Classification:

A61B 3/107
G06K 9/62
G06T 7/60
A61B 3/00
G06T 7/00
A61B 3/10

Abstract:

Disclosed are systems and methods for characterizing corneal shape abnormalities. These methods may be used to differentiate corneas having subclinical keratoconus from other conditions which cause distortion of corneal shape, including warpage of the cornea due to contact lens wear. Also disclosed is classification scheme to aid diagnosis of corneal conditions and thereby guide clinical decision making regarding patient treatment. This classification scheme is based on computed properties of corneal shape, is amenable to automation, and may be implemented in an integrated system or provided in the form of software encoded on a computer-readable medium.

US Patent:

20150324978, Nov 12, 2015

Filed:

May 5, 2015

Appl. No.:

14/704175

Inventors:

David Huang - Portland OR, US
Yan Li - Portland OR, US
James T. Rosenbaum - Portland OR, US

Assignee:

OREGON HEALTH & SCIENCE UNIVERSITY - PORTLAND OR

International Classification:

G06T 7/00

Abstract:

Methods and systems for determining a percentage composition of aqueous cells in an anterior chamber of an eye of a subject based on cell reflectance distributions calculated from OCT image data are disclosed. In one example approach, determining a percentage composition of detected aqueous cells may comprise calculating a percentage of the detected aqueous cells which are polymorphonuclear and calculating a percentage of detected aqueous cells which are mononuclear.