Patent ID: 7296744
Filing Date: 2007-11-20
Classification: G06K

Abstract:
1. A scan engine for use in swipe imager, the scan engine mounted in a housing of the swipe imager adjacent an exit window of the swipe imager housing, the scan engine comprising: a camera mounted on a scan engine chassis; an illumination source mounted on the scan engine chassis; and a synchronization module; the camera including a senor and an optical element to focus illumination from a field of view of the camera onto the sensor, the sensor and the optical element mounted to a circuit board of the scan engine chassis, the camera defining near working range and a far working range for imaging a target bar code, the near working range including the exit window to provide for imaging a target bar code swiped along the exit window; the illumination source mounted on the scan engine chassis such that the divergence angle of light from the illumination source is approximately matched to the field of view of the camera; and the synchronization module coupled to the camera and the illumination source, the illumination source being activated to generate a series of illumination pulses, a duration of each of the illumination pulses being synchronized with an integration duration of the camera sensor to provide that the integration duration of the camera sensor and the duration an illumination pulse of the illumination source occur simultaneously and have substantially the same duration.