Chinh Tan

US Patent:

6616046, Sep 9, 2003

Filed:

May 10, 2000

Appl. No.:

09/568342

Inventors:

Edward Barkan - Miller Place NY
Paul Dvorkis - Setauket NY
Howard Shepard - Great River NY
Miklos Stern - Flushing NY
Chinh Tan - Setauket NY

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 710

US Classification:

23546229, 23546225

Abstract:

Various techniques for reducing the size of bar code scanner modules are disclosed including embodiments having miniature moving mirror elements employing spiral tape springs and micro machined structures. Other embodiments employ VCSELs and relatively small collection areas, while minimizing speckle noise through beam shaping and signal processing techniques.

US Patent:

6691919, Feb 17, 2004

Filed:

Dec 23, 1999

Appl. No.:

09/471306

Inventors:

Joseph Katz - Stony Brook NY
Chinh Tan - Centereach NY
David Goren - Smithtown NY
Miklos Stern - Flushing NY
Ed Barkan - Miller Place NY
Howard Shepard - Great River NY
Frederick Wood - Medford NY

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 710

US Classification:

23546201, 23546225, 23546246

Abstract:

An integrated optical communication and barcode scanning module suitable for use with portable electronic devices is provided. In a first mode of operation the module functions as an Infrared Data Association (IrDA) compatible communications interface. In a second mode of operation, IrDA communications is disabled, and the module functions as a barcode scanner. The module may be switched back and forth between the two modes of operation or operated simultaneously.

US Patent:

6832724, Dec 21, 2004

Filed:

Mar 4, 2002

Appl. No.:

10/090653

Inventors:

Dmitriy Yavid - St. James NY
Frederick R. Wood - Medford NY
Miklos Stern - Flusing NY
Chinh Tan - Setauket NY
Edward Barkan - Miller Place NY
Shane MacGregor - Forest Hills NY
Joseph Katz - Stony Brook NY

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K 714

US Classification:

235454, 359201

Abstract:

An arrangement for and method of projecting an image on a viewing surface include sweeping a light beam along a plurality of scan lines that extend over the viewing surface, and selectively illuminating parts of the image at selected positions of the light beam on the scan lines. The viewing surface can be remote from a housing supporting the arrangement, or can be located on the housing.

US Patent:

6899271, May 31, 2005

Filed:

May 5, 2003

Appl. No.:

10/429446

Inventors:

Bruce A. Willins - East Northport NY, US
Miklos Stern - Woodmede NY, US
Dmitriy Yavid - Stony Brook NY, US
Frederick F. Wood - Medford NY, US
Chinh Tan - Setauket NY, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G06K007/10

US Classification:

23546201

Abstract:

An arrangement for and a method of collecting and displaying information in real time along a line of sight from a human operator to remote targets located at variable distances therefrom and identifiable by machine-readable indicia. A two-dimensional image is automatically projected along the line of sight on the target alongside the indicia while maintaining the image size relatively constant over an extended range of working distances.

US Patent:

6910633, Jun 28, 2005

Filed:

Oct 9, 2003

Appl. No.:

10/682345

Inventors:

Jerome Swartz - Old Field NY, US
Chinh Tan - Setauket NY, US
Duanfeng He - Farmingville NY, US
Eugene Joseph - Coram NY, US
Joseph Katz - Stoney Brook NY, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G08K007/10

US Classification:

23547201, 23546245

Abstract:

A portable instrument incorporates an electro-optical assembly for reading indicia during a reading mode, and for projecting a bit-mapped color image during a display mode. A manually operable switch on the instrument is disposed for selecting one of the modes. The color image is formed by pulsing a plurality of differently colored lasers at selected times on selected scan lines.

US Patent:

7006274, Feb 28, 2006

Filed:

Mar 28, 2005

Appl. No.:

11/091683

Inventors:

Carl Wittenberg - Water Mill NY, US
Chinh Tan - Setauket NY, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G02F 1/11
G02B 26/00

US Classification:

359285, 359238

Abstract:

A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. A compact acousto-optical modulator is used to modulate a green laser beam used to produce the image.

US Patent:

7030353, Apr 18, 2006

Filed:

Apr 30, 2004

Appl. No.:

10/836813

Inventors:

Miklos Stern - Woodmere NY, US
Paul Dvorkis - East Setauket NY, US
Narayan Nambudiri - Kings Park NY, US
Carl Wittenberg - Water Mill NY, US
Chinh Tan - Setauket NY, US
Ron Goldman - Cold Spring Harbor NY, US
Dmitriy Yavid - Stony Brook NY, US
Frederick F. Wood - Medford NY, US

Assignee:

Symbol Technologies,Inc. - Holtsville NY

International Classification:

G01J 1/32

US Classification:

250205, 250235

Abstract:

A method and apparatus are provided to controllably reduce power of a laser projection display (LPD) in response to detecting a variation in a viewing surface. During the operation of the LPD, a controller monitors laser light being reflected from the viewing surface. Since the controller “knows” the amount of power that the LPD is being instructed to deliver, it may compare the known power to the reflected laser light to determine if a foreign object may be in the path of the laser light, and therefore, affecting the magnitude of the laser light. The controller responds to detecting such an event by reducing power to the lasers.

US Patent:

7131728, Nov 7, 2006

Filed:

Apr 30, 2004

Appl. No.:

10/836811

Inventors:

Narayan Nambudiri - Kings Park NY, US
Paul Dvorkis - East Setauket NY, US
Ron Goldman - Cold Spring Harbor NY, US
Carl Wittenberg - Water Mill NY, US
Chinh Tan - Setauket NY, US
Miklos Stern - Woodmere NY, US
Dmitriy Yavid - Stony Brook NY, US
Frederick F. Wood - Medford NY, US

Assignee:

Symbol Technologies, Inc. - Holtsville NY

International Classification:

G03B 21/00
G02B 27/14
G02B 27/22
H04N 13/00
H04N 15/00

US Classification:

353 13, 353 10, 353 12, 353 14, 359478, 359634, 348 44

Abstract:

An image projector is supported by a vehicle to project a two-dimensional image on a projection surface, such as a portion of a windshield, an instrument panel, or a seat back, within the vehicle, for viewing by an occupant of the vehicle.