Rong Liu

US Patent:

7369316, May 6, 2008

Filed:

Jun 2, 2006

Appl. No.:

11/445660

Inventors:

James F. Shanley - Westborough MA, US
Rong Liu - Miami FL, US

Assignee:

Scram Technologies, Inc. - Dunkirk MD

International Classification:

G02B 27/10

US Classification:

359629

Abstract:

An optical system for a digital light projection system is provided. The optical system comprises a plurality of LED arrays, wherein each LED array comprises a plurality of LEDs. The optical system also comprises an optical concentrator element positioned substantially adjacent to each of the LED arrays, wherein each concentrator element reflects light emitted from the plurality of LEDs within the corresponding LED array. The optical system preferably further comprises a reflective aperture element positioned substantially adjacent to the output surface of each concentrator element. The aperture element includes a reflective surface and an aperture defined by the reflective surface. The reflective surface faces the output surface of each corresponding concentrator element to thereby ultimately provide substantially uniform light which is projected through the aperture.

US Patent:

7762466, Jul 27, 2010

Filed:

Dec 18, 2008

Appl. No.:

12/337748

Inventors:

Chinh Tan - Setauket NY, US
Vladimir Gurevich - Stony Brook NY, US
Rong Liu - Selden NY, US
Tsi David Shi - Stony Brook NY, US
Igor Vinogradov - New York NY, US
Ming Yu - Hoffman Estates IL, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 7/10
G06K 7/00

US Classification:

23546242, 235435, 23546201

Abstract:

An imaging-based bar code reader including: an imaging system for imaging a target bar code within a field of view of the imaging system and projecting light from the field of view onto a sensor array, the imaging system generating image frames of the field of view of the imaging system; the imaging systems including an imaging lens assembly having a plurality of lens and a selection drive mechanism to select between a first optical zoom position defining a first focal length and a first field of view for imaging a target bar code at a close range and a second optical zoom position defining a second focal length and a second field of view for imaging a target bar code at a far range, the second focal length being greater than the first focal length.

US Patent:

7963447, Jun 21, 2011

Filed:

Nov 30, 2007

Appl. No.:

11/998555

Inventors:

Ming Yu - South Setauket NY, US
Rong Liu - Selden NY, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 7/10

US Classification:

23546243, 235454, 23546201, 23546245, 23547201

Abstract:

Laser power monitoring arrangements interrupt power to a laser used in electro-optical readers upon detection of operating conditions not conforming to preestablished standards. An auxiliary light detector independently monitors the output power of a laser beam, and directly receives a portion of the laser beam reflected from a diffractive optical lens surface of an optical assembly for optically modifying the laser beam, or from a coated or uncoated inclined surface of a split collimating lens of the optical assembly. The split collimating lens may have its lens portions in mutual contact or separated by an air gap.

US Patent:

8002186, Aug 23, 2011

Filed:

Oct 23, 2008

Appl. No.:

12/288803

Inventors:

Igor Vinogradov - Oakdale NY, US
Mark Drzymala - Commack NY, US
Darren Handshaw - Miller Place NY, US
Yuly Mitelman - Stony Brook NY, US
Rong Liu - Selden NY, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 7/10

US Classification:

235455, 23547201, 235473, 235483, 235486

Abstract:

A laser power control arrangement and method in an electro-optical reader for reading indicia includes an energizable laser for emitting a laser beam having an output power along a path. An internal light detector, e. g. , a monitor photodiode, is mounted inside the laser for monitoring the output power of the laser. An external light detector, e. g. , an auxiliary photodiode, is mounted outside the laser for monitoring the output power of the laser independently of the internal light detector. A guide, advantageously a light pipe or a diffuser, is positioned outside the laser in the path of the laser beam for guiding the laser beam from the laser to the external light detector. A controller is operatively connected to each light detector, for controlling a monitored output power of the laser beam by deenergizing the laser when the monitored output power of the laser beam exceeds a safe power level limit.

US Patent:

8006906, Aug 30, 2011

Filed:

Feb 24, 2009

Appl. No.:

12/380142

Inventors:

Rong Liu - Centereach NY, US
Vladimir Gurevich - Stony Brook NY, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 7/10

US Classification:

23546242, 23546241

Abstract:

A module and an arrangement for, as well as a method of, generating a generally uniform distributed line pattern of light on a symbol to be read by image capture, include a light source for generating light along an optical axis in a distribution having different extents along intersecting directions generally perpendicular to the axis, and an optical component for receiving, and for optically modifying, the light from the light source to generate the generally uniform distributed line pattern of light on the symbol. The optical component includes a plurality of compound conic elements spaced apart from one another along one of the directions. Each compound conic element has a pair of conic segments for modifying the light along the one direction. A collimating lens modifies the light along the other of the directions. A solid-state imager has an array of image sensors for capturing return light from the symbol over a field of view having different extents along the intersecting directions.

US Patent:

8030630, Oct 4, 2011

Filed:

Nov 3, 2008

Appl. No.:

12/263644

Inventors:

Chinh Tan - Setauket NY, US
Rong Liu - Selden NY, US
Carl Wittenberg - Water Mill NY, US
Ming Yu - Hoffman Estates IL, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 9/00

US Classification:

250555, 25022711, 235 41, 382103

Abstract:

A method and apparatus comprising an imaging system () with safety control for imaging target objects having a scanning arrangement () including a sensor assembly () for capturing an image from a target object. The sensor assembly () has a field-of-view focused by an optical arrangement () onto a sensor array (). The imaging system further comprises an illumination assembly () having a housing (), illumination source (), light pipe (), and projection lens (). The illumination assembly () provides light energy toward the sensor assembly field-of-view for illuminating the target object to be imaged on the sensor array (). The light pipe () comprises a multi-walled tapered body () having an input face (). The walls of the body () create mirrored images of the illumination source (), together with the projection lens redistribute the amount of light energy directed at the eyes of a human.

US Patent:

8340999, Dec 25, 2012

Filed:

Nov 27, 2007

Appl. No.:

11/945297

Inventors:

Santhosh Babu Kumaran - Peekskill NY, US
Rong Liu - Ossining NY, US
Frederick Yung-Fung Wu - Cos Cob CT, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06Q 10/00

US Classification:

705 712, 705 711, 705 713, 705 714, 705 717, 705 723, 709223, 709224, 709225, 709226, 718 1, 718100, 718101, 718102, 718103, 718104, 718105

Abstract:

Exemplary embodiments provide a computer implemented method, system and computer usable program code for automatically generating executable components from a process model. An input is received, wherein the input comprises a model that describes activities that needs to be performed as part of a business operation, a sequencing of the activities, and input and output data of the activities, forming a process model. A model of a set of connected business artifacts based on the process model, forming a business operation model, is generated. The business operation model is saved. The business operation model is displayed to a user. Executable components definitions based on the business operation model are generated.

US Patent:

8430314, Apr 30, 2013

Filed:

Nov 14, 2011

Appl. No.:

13/295406

Inventors:

Rong Liu - Centereach NY, US
Jean Tu - Stony Brook NY, US
Michael Veksland - Mount Laurel NJ, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 7/10

US Classification:

235454

Abstract:

An apparatus and method for imaging a target, includes a housing having a presentation area, a solid-state imaging sensor having an imaging array of image sensors looking at a field of view that extends through the presentation area to the target, and an imaging lens assembly for capturing return light over the field of view from the target through the presentation area, and for projecting the captured return light onto the imaging array during imaging of the target. The assembly has a plurality of lenses, an aperture stop, and a holder for holding the lenses and the aperture stop in spaced relation along an optical axis. The aperture stop has a non-rotationally symmetrical aperture through which the optical axis extends. Alignment elements on the imaging lens assembly are used to align the non-rotationally symmetrical aperture with the imaging array.