1
Eric P Batterman, Donald G Chandler: Omnidirectional wide range hand held bar code reader. Omniplanar, Allan Jacobson, January 3, 1995: US05378883 (457 worldwide citation)

A hand-held bar code reader with a two dimensional image sensor for omnidirectional bar code reading, includes variable imaging optics, and flash illumination with variable flash illumination optics. A spotter beam is provided for aiming the hand held bar code reader at a bar code symbol. The spotte ...


2
Eric P Batterman, Donald G Chandler: Hand-held bar code reader with laser scanning and 2D image capture. Omniplanar, Allan Jacobson, May 1, 2001: US06223988 (349 worldwide citation)

A hand-held bar code reader includes a laser scanning module and a two dimensional image sensor and processing for reading a bar code. The laser scanner assists the 2D image processing by providing information on location, type, range, reflectivity, and presence of bar code for 2D reading. Additiona ...


3
Donald G Chandler, Eric P Batterman: Omnidirectional bar code reader using virtual scan of video raster scan memory. Omniplanar, Allan J Jacobson, June 23, 1992: US05124537 (192 worldwide citation)

An omnidirectional bar code reader uses a virtual scan of raster scan digital image memory to create the equivalent scanning pattern of a mechanical laser scanner. A two dimensional image of bar code symbol at any random orientation is captured in a memory. In one embodiment, the image memory is sca ...


4
Donald G Chandler, Eric P Batterman: System for locating and determining the orientation of bar codes in a two-dimensional image. Omniplanar, Allan Jacobson, March 22, 1994: US05296690 (161 worldwide citation)

A bar code reader includes an image capture means for storing a two dimensional image in memory, which stored image may include a bar code symbol within the field of view of said image. The present bar code reader further includes method and apparatus for determining the location and orientation of ...


5
Eric P Batterman, Donald G Chandler: Finder pattern for optically encoded machine readable symbols. Omniplanar, Allan Jacobson, February 23, 1993: US05189292 (161 worldwide citation)

An optically encoded information bearing label containing a two dimensional array of data cells includes a finder pattern comprising a plurality of spots arranged in a predetermined geometric pattern substantially analogous to the predetermined geometric pattern of said two dimensional array of data ...


6
Eric P Batterman, Donald G Chandler: Method and apparatus for distinguishing a preferred bar code or the like. Omniplanar, Allan Jacobson, November 16, 1993: US05262623 (102 worldwide citation)

A bar code reader utilizing a two dimensional image capture optical system, includes a method and apparatus for distinguishing a preferred bar code out a plurality of bar codes within the field of view of the bar code reader. The method and apparatus for distinguishing a preferred bar code includes ...


7
Eric P Batterman, Donald G Chandler, Robert H Dunphy: Method and apparatus for determining position and orientation. Omniplanar, Allan Jacobson, January 5, 1999: US05856844 (99 worldwide citation)

A method for determining degrees of freedom of an object, and in particular, to a device for determining up to six degrees of freedom of a head mount display and a handle. A first camera is attached to a head mount display and senses an optically modulated target. The first camera's video output sig ...


8
Eric P Batterman, Donald G Chandler: Multiple resolution machine readable symbols. Omniplanar, Allan J Jacobson, October 6, 1992: US05153418 (99 worldwide citation)

A multiple resolution optically encoded label is readable at two more optical resolutions, and is able to store two or more respective channels of optically encoded information. Low resolution information is encoded in a plurality of large cells arranged in a predetermined geometric pattern. Each of ...


9
Donald G Chandler, Eric P Batterman: Dual processor omnidirectional bar code reader with dual memory for bar code location and orientation. Omniplanar, Allan Jacobson, April 30, 1996: US05512739 (73 worldwide citation)

A bar code reader includes a first and second memory arrangement in which a two dimensional image containing the image of a bar code symbol at a random location and orientation is stored in a first memory. Thereafter, the contents of the first memory is processed by a specialized controller to deter ...


10
Eric P Batterman, Donald G Chandler, Robert H Dunphy: Method and apparatus for determining degrees of freedom of a camera. Omniplanar, Allan Jacobson, November 3, 1998: US05832139 (44 worldwide citation)

A method for determining up to six degrees of freedom of a camera relative to a reference frame comprises sensing an optically modulated target with the camera and processing the camera's video output signal with a digital computer. The target may have a single pattern, multiple patterns, or pattern ...



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