Brian G Rodricks

US Patent:

6791091, Sep 14, 2004

Filed:

Jun 19, 2001

Appl. No.:

09/884810

Inventors:

Brian Rodricks - Newark DE 19711
Michael G. Hoffberg - Philadelphia PA 19102

International Classification:

G01T 164

US Classification:

25037009, 25037008

Abstract:

A digital x-ray imaging device and method. The imaging device comprises a top electrode layer; a dielectric layer; a sensor layer comprising a photoconductive layer and a plurality of pixels, each pixel comprising a charge-collecting electrode; a thin film transistor (TFT) readout matrix connected to the charge-collecting electrodes; and a variable power supply adapted to provide a range of voltages between the top electrode layer and the TFT readout matrix. The variable power supply may comprise a programmable power supply. The method comprises varying the voltage between the top electrode layer and the TFT readout matrix of a TFT-based direct digital x-ray imaging device to provide an acceptable signal-to-noise ratio over a greater range of exposures than provided at a single voltage. The method may be particularly useful in non-destructive testing applications.

US Patent:

6888144, May 3, 2005

Filed:

Jul 16, 2002

Appl. No.:

10/196005

Inventors:

Brian Rodricks - Newark DE, US

Assignee:

Direct Radiography Corp. - Newark DE

International Classification:

G01T001/24

US Classification:

25037009, 250586

Abstract:

X-ray image degradation due to scattered radiation is reduced in a system using a planar sensor sheet by providing an X-ray absorbing sheet in front of the sensor sheet, or in back of the sensor sheet, or both. The thickness and material of construction of each X-ray absorbing sheet depends on the X-ray absorptivity of the material used, and whether the absorbing sheet is in front or in back of the sensor sheet. The front absorbing sheet is preferably as close as possible to the sensor sheet. The back absorbing sheet, if used, can be at essentially any distance from the sensor sheet, beyond a certain minimum, consistent with practical space limitations in the overall physical shape and design of the unit.

US Patent:

7162035, Jan 9, 2007

Filed:

May 24, 2000

Appl. No.:

09/577959

Inventors:

David I. Durst - Syosset NY, US
Norman Kaish - Whitestone NY, US
Jay Fraser - Merrick NY, US
Michael Hoffberg - Bear DE, US
Brian Rodricks - Newark DE, US

Assignee:

Tracer Detection Technology Corp. - Syosset NY

International Classification:

G09C 3/00
H04L 9/00

US Classification:

380 54, 713170, 713176

Abstract:

The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.

US Patent:

7773749, Aug 10, 2010

Filed:

Jan 9, 2007

Appl. No.:

11/621252

Inventors:

David I. Durst - Syosset NY, US
Norman Kaish - Whitestone NY, US
Jay Fraser - Freeport NY, US
Michael Hoffberg - Bear DE, US
Brian Rodricks - Newark DE, US

Assignee:

Tracer Detection Technology Corp. - Syosset NY

International Classification:

G09C 5/00

US Classification:

380 54, 713185, 726 27

Abstract:

The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.

US Patent:

7920746, Apr 5, 2011

Filed:

Apr 23, 2007

Appl. No.:

11/738897

Inventors:

Amnon Silverstein - Mountain View CA, US
Sheng Lin - Sunnyvale CA, US
Brian Rodricks - Los Gatos CA, US

Assignee:

Aptina Imaging Corporation - George Town

International Classification:

G06K 9/36
G06K 9/46

US Classification:

382232

Abstract:

Apparatus, systems, and methods disclosed herein may transpose image blocks from successively-captured versions of an image according to relative movement between an image capture device and the scene being captured. The transposition may provide for alignment of the successively-captured images notwithstanding the movement. The transposed image blocks from the successive images are composited in the frequency domain by integrating frequency domain coefficients from each into a composite final image. Additional embodiments are disclosed.

US Patent:

8270603, Sep 18, 2012

Filed:

Aug 10, 2010

Appl. No.:

12/853768

Inventors:

David I. Durst - Syosset NY, US
Norman Kaish - Whitestone NY, US
Jay Fraser - Freeport NY, US
Michael Hoffberg - Bear DE, US
Brian Rodricks - Newark DE, US

Assignee:

Tracer Detection Technology Corp. - San Antonio TX

International Classification:

G09C 5/00

US Classification:

380 54

Abstract:

The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.

US Patent:

20080055436, Mar 6, 2008

Filed:

Aug 29, 2006

Appl. No.:

11/511207

Inventors:

Atif Sarwari - Saratoga CA, US
Steinar Iversen - Oslo, NO
Brian Rodricks - Los Gatos CA, US

International Classification:

H04N 9/04

US Classification:

348272

Abstract:

A pixel array, composed of rows and columns, has a first row which includes pixels of a first color alternating with pixels of a second color. A second row of the array adjacent to the first row includes alternating pixels of the first color and second colors aligned in a column direction with the colors in the first row. A third row of the array is adjacent to the second row and includes pixels of a third color alternating with pixels of a fourth color. A fourth row of the array is adjacent to the third row and includes alternating pixels of the third and fourth colors aligned in a column direction with the colors of the third row. A readout circuit is connected to the array and reads out the pixel signals contained in each row in an odd/even interlaced fashion.

US Patent:

6350985, Feb 26, 2002

Filed:

Apr 26, 1999

Appl. No.:

09/299316

Inventors:

Brian Rodricks - Newark DE
Michael Hoffberg - Bear DE
Cornell Williams - Pennsauken NJ

Assignee:

Direct Radiography Corp. - Newark DE

International Classification:

G12B 1300

US Classification:

2502521, 25036309, 25033909, 2503415

Abstract:

A method for developing a set of gain correction coefficients corrected for structural noise to be used in correcting the digital values representing an image captured by a pixelated detector having a plurality of individual sensors. The gain correction coefficients are developed by first obtaining a first set gain correction coefficients using a flat exposure and adjusting the individual sensor gain output so that all sensors produce the same output value, and then applying a smoothing filter to the first set of gain correction coefficients to obtain a new set of corrected gain correction coefficients.