Feng Jia F Huang

US Patent:

6865494, Mar 8, 2005

Filed:

Dec 18, 2002

Appl. No.:

10/323135

Inventors:

G. Randy Duensing - Gainesville FL, US
Charles Saylor - Gainesville FL, US
Feng Huang - Gainesville FL, US

Assignee:

MRI Devices Corp. - Gainesville FL

International Classification:

G06F019/00

US Classification:

702 38, 702104, 702179, 702198, 324439, 324633, 324722, 7333505, 600409, 600411

Abstract:

The subject invention pertains to an imaging technique and apparatus which can utilize an array of RF probes to measure the non-resonant thermal noise which is produced within a sample, such as a body, and produce a non-resonant thermal noise correlation. The detected noise correlation is a function of the spatial overlap of the electromagnetic fields of the probes and the spatial distribution of the conductivity of the sample. The subject technique, which can be referred to as Noise Tomography (NT), can generate a three-dimensional map of the conductivity of the sample. Since the subject invention utilizes detection of the thermal noise generated within the body, the subject method can be non-invasive and can be implemented without requiring external power, chemicals, or radionuclides to be introduced into the body. The subject imaging method can be used as a stand along technique or can be used in conjunction with other imaging techniques.

US Patent:

7202663, Apr 10, 2007

Filed:

Nov 12, 2004

Appl. No.:

10/987038

Inventors:

Feng Huang - Gainesville FL, US

Assignee:

Iovivo Corporation - Gainesville FL

International Classification:

G01V 3/00

US Classification:

324307, 324309

Abstract:

The subject invention pertains to a method for acquiring and reconstructing a collection of time crucial magnetic resonance images. The subject invention is applicable for speeding up acquisition of or improving the quality of the set of images. In one specific embodiment, the subject method is used to reduce the time required to generate a cardiac CINE sequence of phases of the heart.

US Patent:

7230429, Jun 12, 2007

Filed:

Jan 24, 2005

Appl. No.:

11/041904

Inventors:

Feng Huang - Gainesville FL, US
G. Randy Duensing - Gainesville FL, US
Yunmei Chen - Gainesville FL, US

Assignee:

Invivo Corporation - Gainesville FL

International Classification:

G01V 3/00

US Classification:

324322, 324318

Abstract:

The subject invention pertains to a method and apparatus for producing sensitivity maps with respect to medical imaging. The subject invention relates to a method for applying an inpainting model to correct images in parallel imaging. Some images, such as coil sensitivity maps and intensity correction maps, have no signal at some places and may have noise. Advantageously, the subject invention allows an accurate method to fill in holes in sensitivity maps, where holes can arise when, for example, the pixel intensity magnitudes for two images being used to create the sensitivity map are zero. A specific embodiment of the subject invention can accomplish de-noise, interpolation, and extrapolation simultaneously for these types of maps such that the local texture can be carefully protected.

US Patent:

7576536, Aug 18, 2009

Filed:

May 8, 2006

Appl. No.:

11/430384

Inventors:

James Akao - Gainesville FL, US
G. Randy Duensing - Gainesville FL, US
Feng Huang - Gainesville FL, US

Assignee:

Invivo Corporation - Gainesville FL

International Classification:

G01V 3/00

US Classification:

324307, 324309, 324312

Abstract:

The subject invention pertains to method and apparatus for parallel imaging. The subject method can be utilized with imaging systems utilizing parallel imaging techniques. In a specific embodiment, the subject invention can be used in magnetic resonance imaging (MRI). A specific embodiment of the subject invention can reduce parallel reconstruction CPU and system resources usage by reducing the number of channels employed in the parallel reconstruction from the M channel signals to a lower number of channel signals. In a specific embodiment, sensitivity map information can be used in the selection of the M channel signals to be used, and how the selected channel signals are to be combined, to create the output channel signals. In an embodiment, for a given set of radio-frequency (RF) elements, an optimal choice of reconstructed channel modes can be made using prior view information and/or sensitivity data for the given slice. The subject invention can utilize parallel imaging speed up in multiple directions.

US Patent:

7929497, Apr 19, 2011

Filed:

Jan 28, 2008

Appl. No.:

12/020675

Inventors:

Mehdi Alasti - Rockville MD, US
Mohammad Hassan Partovi - Potomac MD, US
Feng Huang - Herndon VA, US

Assignee:

Clear Wireless LLC - Kirkland WA

International Classification:

H04W 4/00

US Classification:

370331, 455436

Abstract:

A method of operating a communication system is disclosed. A first communication session between a first base station and a mobile station is established. A service session between a first access network and the mobile station is established. When the mobile station moves to the service area of a new base station, a second communication session between a second base station and the mobile station is established. A distance between the first base station and the second base station is determined. If the distance exceeds a criteria, the service session is handed off a second access network. The criteria, which must be greater than zero, corresponds to the number of base station service areas separating the first base station and the second base station.

US Patent:

8023484, Sep 20, 2011

Filed:

Nov 5, 2008

Appl. No.:

12/264955

Inventors:

Feng Huang - Herndon VA, US
Lei Zhu - Overland Park KS, US
David S. McGinniss - Aurora IL, US
Mohammad Hassan Partovi - Potomac MD, US

Assignee:

Clear Wireless LLC - Kirkland WA

International Classification:

H04Q 7/24
H04L 12/28

US Classification:

370338, 370401, 370410, 709228

Abstract:

In various embodiments, methods and systems are provided for acquiring a mobile internet protocol address in a communication network. In an embodiment, a gateway node generates an extension where the extension comprises an authentication node identifier associated with a user identifier. The gateway node then sends a mobile internet protocol request message to a mobile network internet node where the mobile internet protocol request message comprises the extension. The mobile network internet node can then send a mobile internet protocol access request message to an authentication node utilizing the authentication node identifier obtained from the extension. In response to receiving a mobile internet protocol access accept message at the mobile network internet node transferred from the authentication node where the mobile internet protocol access accept message comprises the mobile network internet node key, the mobile network internet node assigns the mobile internet protocol address to the mobile station associated with the user identifier. A mobile internet protocol session accept message is sent to a mobile station wherein the mobile internet protocol session accept message comprises the mobile internet protocol address.

US Patent:

8279872, Oct 2, 2012

Filed:

Nov 5, 2008

Appl. No.:

12/265000

Inventors:

Feng Huang - Herndon VA, US
Lei Zhu - Overland Park KS, US
David S. McGinniss - Aurora IL, US
Mohammad Hassan Partovi - Potomac MD, US

Assignee:

Clearwire IP Holdings LLC - Bellevue WA

International Classification:

H04L 12/28

US Classification:

370392, 370328, 370401, 726 4

Abstract:

In various embodiments, methods and systems are provided for acquiring a mobile internet protocol address in a communication network. In an embodiment, a mobile network internet node key is sent to a service node. A mobile network internet node sends a mobile internet protocol access request message to an authentication node. The authentication node can then receive the mobile network internet node key transferred from the service node. In response to receiving a mobile internet protocol access accept message at the mobile network internet node transferred from the authentication node where the mobile internet protocol access accept message comprises the mobile network internet node key, the mobile internet protocol address is assigned at the mobile network internet node to a mobile station associated with a user identifier.

US Patent:

20050253580, Nov 17, 2005

Filed:

May 13, 2005

Appl. No.:

11/128731

Inventors:

Feng Huang - Gainesville FL, US
Hu Cheng - Gainesville FL, US
G. Duensing - Gainesville FL, US

International Classification:

G01V003/00

US Classification:

324307000, 324309000

Abstract:

The subject invention pertains to a method for magnetic resonance imaging (MRI) involving the acquisition of pseudo-polar K-space data and creation of an MRI image from the pseudo-polar K-space data. In an embodiment, the subject method can incorporate a scan scheme for acquiring pseudo-polar K-space data and corresponding reconstruction technique. Advantageously, the subject method can result in reduced motion artifact in dynamic MRI with short acquisition time and short reconstruction time. In a specific embodiment, the subject method can incorporate a reconstruction method utilizing Fractional FFT in MRI. The subject method can allow the acquisition of pseudo-polar K-space data. In a specific embodiment, the acquisition of the pseudo-polar is accomplished by one shot. Other acquisition techniques can also be utilized in accordance with the subject invention. In an embodiment, the pseudo-polar K-space data can lie at the origin of K-space and on N linearly growing concentric squares, with N≦2, where the distance between adjacent concentric squares is the same as the distance from the origin to the innermost square. The K-space data on the N concentric squares are equally spaced from adjacent data points on the same square, including data points at the corners of each square.