1
William H Havens, John M Pidhirny, Robert J Hennick: Optical reader having illumination assembly including improved aiming pattern generator. Wall Marjama Bilinski & Burr, May 9, 2000: US06060722 (310 worldwide citation)

An optical assembly for use with optoelectronic readers. An imaging optical assembly having an imaging optical axis forms an image of a two-dimensional region on an optoelectronic imaging device. An aiming pattern generator including at least a point-like aiming light source and an interferometric p ...


2
John M Pidhirny, Richard A Monroe, Michael J Pileski, Robert J Wood: Hand-held optical reader having a detachable lens-guide assembly. Welch Allyn, Wall Marjama & Bilinski, July 28, 1998: US05786586 (281 worldwide citation)

An optical reader is suitable for reading 2-dimensional indicia. The optical reading device, that may include a bar code reader, comprises a lens assembly and a guide detachably mounted on a front portion of the housing for establishing a distance between the lens assembly and an equipment target th ...


3
Andrew Longacre Jr, Robert M Hussey, John M Pidhirny: Apparatus for optimizing throughput in decoded-output scanners and method of using same. Welch Allyn, Harris Beach & Wilcox, October 31, 1995: US05463214 (238 worldwide citation)

A method of improving throughput in a scanner whose scanning action is capable of being stopped and started instantly, comprising the steps of A) storing results of a first scan of a target containing indicia in a first region of a memory and B) upon determining that the first scan is complete 1) de ...


4
Andrew Longacre Jr, Charles M Hammond Jr, William H Havens, John M Pidhirny: Method of programmable digitization and bar code scanning apparatus employing same. Welch Allyn, Harris Beach & Wilcox, February 15, 1994: US05286960 (236 worldwide citation)

A method and apparatus are provided for detecting bar-space and space-bar transitions in a bar code symbol. A sequence of sparsely sampled analog signals from a photodetector in a bar code scanner is representative of the reflectance pattern of a symbol.


5
John M Pidhirny, Richard A Monroe, Michael J Pileski, Robert J Wood: Two-dimensional part reader having a focussing guide. Welch Allyn Data Collection, Wall Marjama Bilinski & Burr, April 4, 2000: US06045047 (218 worldwide citation)

An optical reader is suitable for reading 2-dimensional indicia. The optical reading device, that may include a bar code reader, comprises a guide whose length along the optical reader optical axis is such that when that guide contacts the part or equipment surrounding the indicia to be read, that i ...


6
John M Pidhirny, Kevin R Jost, Thomas D Britton, John L Casey: Check reader. Hand Held Products, Wall Marjama & Bilinski, October 29, 2002: US06473519 (190 worldwide citation)

The present invention is an improved check reader which, in addition to having magnetic ink character recognition capabilities, includes image sensing capabilities. A compact housing is provided which receives a document. Mounted on the housing are an imaging assembly, and a magnetic ink character r ...


7
Andrew Longacre Jr, Robert M Hussey, John M Pidhirny: Method and apparatus for reading decodable indicia. Hand Held Products, Marjama Muldoon Blasiak & Sullivan, July 15, 2008: US07398929 (11 worldwide citation)

The present invention relates to a bar code reading device for reading 1D or 2D bar code symbols. The bar code reading device, in one embodiment, can receive a command to disable symbology reading. In another embodiment, a bar code reading device can have a timercount and an image memory. In one emb ...


8
Robert J Hennick, John M Pidhirny: Adjustable wear plate badge reader. Welch Allyn, Wall and Roehrig, November 12, 1991: US05065001 (5 worldwide citation)

A card or badge reader is provided for reading badges or cards on which there are coded indicia such as a bar code symbol. The reader has a front wall plate that is removably affixed onto the front of the main housing, but separated a slight amount to define a badge reader slot. A wear plate is disp ...


9
Andrew Longacre Jr, Robert M Hussey, John M Pidhirny: Optical reader having image sensor for reading decodable indicia. Hand Held Products, Heslin Rothenberg Farley & Mesiti P C, March 19, 2013: US08397992 (3 worldwide citation)

An optical reader for reading decodable indicia is provided. In one embodiment, the optical reader can include an image sensor. In one aspect, the optical reader can be configured to read bar codes such as 1D bar codes. Particular methods and apparatus for reading decodable indicia are described.


10
Andrew Longacre Jr, Robert M Hussey, John M Pidhirny: Optical reader having image sensor for reading decodable indicia. Hand Held Products, Heslin Rothenberg Farley & Mesiti P C, June 12, 2012: US08196837

An optical reader for reading decodable indicia is provided. In one embodiment, the optical reader can include an image sensor. In one aspect, the optical reader can be configured to read bar codes such as 1D bar codes. Particular methods and apparatus for reading decodable indicia are described.