Michael A Ehrhart

US Patent:

6405929, Jun 18, 2002

Filed:

Jun 2, 1998

Appl. No.:

09/088824

Inventors:

Michael A. Ehrhart - Liverpool NY
Robert M. Hussey - Liverpool NY
Todd A. Dueker - Camillus NY
Cayetano Sanchez III - East Greenwich RI
Walter Szrek - East Greenwich RI
John C. Abraitis - Cumberland RI

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06K 0700

US Classification:

235486, 382100

Abstract:

In a first embodiment of a material detection system according to the invention, a security document is disposed in an optical path between an infrared light source and image sensor so that the imaging system comprising the infrared light source, image sensor and associated controller determines characteristics of material compositions of a document based on transmissivity characteristics of a document. In a second embodiment, a radiation wavelength sensitive additive which emits energy in a second band of wavelengths when radiated in a first band of wavelengths is incorporated in a security document and detected for by an imaging system which detects for emitted radiant energy in the second band of wavelengths. In a third embodiment of a material detection system, the manufacturing of documents of various styles is controlled so that the various styles of documents exhibit similar reflectance characteristics under illumination by a predetermined narrow band source despite exhibiting dissimilar reflectance characteristics under white light.

US Patent:

6419157, Jul 16, 2002

Filed:

Dec 4, 2000

Appl. No.:

09/729009

Inventors:

Michael A. Ehrhart - Liverpool NY
Robert M. Hussey - Camillus NY
Todd A. Dueker - Camillus NY
Cayetano Sanchez, III - East Greenwich RI
Walter Szrek - East Greenwich RI
John C. Abraitis - Cumberland RI
Claude Lambert - Montreal, CA
Francois Gougeon - Montreal, CA
Robert Boulay - Laval, CA
Denis Mondou - Chateaugay, CA

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06N 700

US Classification:

235486, 235449

Abstract:

In one method according to the invention, a security document of an undetermined size within a range of sizes is processed by capturing images corresponding to a topside and bottomside thereof sufficient to encompass the largest possible sized document and then searching through the captured image data to locate an identification code which may have been formed on any location of the document. If a symbol is found that satisfies a predetermined criteria for being an identification code, then the symbol is decoded, and the identification code for the document is utilized to control further processing of the document. Further processing subroutines of the document may include subroutines which utilize one or multiple imaging systems to verify that the document is authentic, subroutines for validating the document, and subroutines for voiding the document.

US Patent:

6491223, Dec 10, 2002

Filed:

Aug 30, 2000

Appl. No.:

09/651162

Inventors:

Andrew Longacre, Jr. - Skaneateles NY
Robert M. Hussey - Camillus NY
Thomas J. Koziol - Camillus NY
Michael A. Ehrhart - Liverpool NY

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06K 710

US Classification:

23546201, 23546225

Abstract:

A method and apparatus for autodiscriminating and decoding any of a plurality of 1D linear bar code symbols which use different 1D symbologies and of 2D matrix bar code symbols which use different 2D finder patterns and 2D symbologies. A processor stores a plurality of 1D decoding programs, a plurality of 2D decoding programs, and a parameter table that specifies which of said programs are to be enabled. During 1D autodiscriminating, the processor makes not attempt to decode unknown symbols in accordance with 1D decoding programs that are not enabled. During 2D autodiscrimination, the processor makes not attempt to decode unknown 2D symbols in accordance with 2D decoding programs that are not enabled.

US Patent:

6578766, Jun 17, 2003

Filed:

Dec 21, 2000

Appl. No.:

09/746140

Inventors:

James A. Parker - Liverpool NY
Jeffrey Pine - Auburn NY
Thomas J. Koziol - Camillus NY
Michael A. Ehrhart - Liverpool NY
Andrew Longacre, Jr. - Skaneateles NY
Robert M. Hussey - Camillus NY
George S. Smith - Manlius NY

Assignee:

Welch Allyn Data Collection, Inc - Skaneateles Falls NY

International Classification:

G06K 710

US Classification:

23546201, 23547201, 23546225, 235494

Abstract:

The invention relates to an optical reading system comprising an optical reader and a host processor. In one aspect of the invention, the host processor may be configured to transmit a component control instruction in response to a user input command input by a user of the host processor to remotely control the reader. The optical reader subsequently receives the transmitted component control instruction and executes the component control instruction substantially on receipt thereof. In one embodiment, execution of the component control instruction by the optical reader has the same effect as the reader trigger being manually pulled by a reader operator.

US Patent:

6601768, Aug 5, 2003

Filed:

Mar 8, 2001

Appl. No.:

09/802579

Inventors:

Melvin D. McCall - Homer NY
Vivian L. Hunter - Baldwinsville NY
Charles P. Barber - Fayetteville NY
William H. Havens - Skaneateles NY
Eric Coleman - Liverpool NY
Michael Ehrhart - Liverpool NY
Robert J. Hennick - Auburn NY

Assignee:

Welch Allyn Data Collection, Inc. - Skaneateles Falls NY

International Classification:

G06K 710

US Classification:

23546242, 23546241, 235454, 23547201

Abstract:

The present invention is an imaging module including various optical components and a circuit board, which, in one embodiment, carries essentially an entirety of illumination and aiming LEDs of the module. The module includes a combination of features which result in the size of the module being reduced. The module may comprise a refractive optic diffuser plate manufactured using a textured surface mold.

US Patent:

6698656, Mar 2, 2004

Filed:

Dec 21, 2000

Appl. No.:

09/746428

Inventors:

James A. Parker - Liverpool NY
Jeffrey Pine - Auburn NY
Thomas J. Koziol - Camillus NY
Michael A. Ehrhart - Liverpool NY
Andrew Longacre, Jr. - Skaneateles NY
Robert M. Hussey - Camillus NY
George S. Smith - Manlius NY

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06K 710

US Classification:

23546201, 23546212, 23546215, 23546245, 235454, 23547201

Abstract:

An optical reading system comprising an optical reader and a host processor. In one aspect of the invention, the host processor may be configured to transmit a component control instruction in response to a command input by a user of the host processor to remotely control the reader. The optical reader subsequently receives the transmitted component control instruction and executes the component control instruction substantially on receipt thereof. In one embodiment, execution of the component control instruction by the optical reader has the same effect as the reader trigger being manually pulled by a reader operator.

US Patent:

6722569, Apr 20, 2004

Filed:

Jul 13, 2001

Appl. No.:

09/904697

Inventors:

Michael Ehrhart - Liverpool NY
Andrew Longacre, Jr. - Skaneateles NY

Assignee:

Welch Allyn Data Collection, Inc. - Skaneateles Falls NY

International Classification:

G06K 712

US Classification:

235469, 23546204

Abstract:

The present invention relates to an optical reader that includes a color imaging assembly that generates color imaging data. An image analysis circuit determines if the acquired image should be characterized as a color photograph or as including a graphical symbol. A processing circuit processes the imaging data based on the image analysis circuits determination of whether the image is a graphical symbol or a color photograph. The present invention allows a user to acquire and process both color images and graphical symbols, such as bar codes, text, OCR symbols or signatures. The optical reader of the present invention is also configured to associate an acquired image with at least one other acquired image.

US Patent:

6752319, Jun 22, 2004

Filed:

Nov 20, 2001

Appl. No.:

09/989360

Inventors:

Michael A. Ehrhart - Liverpool NY
Robert M. Hussey - Camillus NY
Todd A. Dueker - Camillus NY
Cayetano Sanchez, III - East Greenwich RI
Walter Szrek - East Greenwich RI
John C. Abraitis - Cumberland RI
Claude Lambert - Montreal, CA
Francois Gougeon - Montreal, CA
Robert Boulay - Laval, CA
Denis Mondou - Chateaugay, CA

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06K 700

US Classification:

235486, 382100

Abstract:

The present invention relates to lottery game tickets and methods for making the same. In one embodiment, a wavelength-sensitive addition is incorporation in game ticket play area. In another embodiment, reflectance characteristics of a game ticket play area are controlled.