I-tek, Inc.

Lau Technologies

Viisage Technology, Inc.

William C Bradley

Mark L Mesher

Richard A Hutchin

Allen H Greenleaf

Roger K Lee, Jr

A system for providing a printed output image including information from a data collection system onto a single print medium is disclosed. Data collection systems and methods are disclosed for collecting data from a plurality of spatially separated sources and for providing that data as a sequence of output signals. The data collection system includes a housing a selection element, one or more image paths and an image plane. The selection element selectively and alternatively couples visual images from separate object sources along the image paths and onto the image plane. The selection element may include optical shutters for selectively occluding or transmitting the visual images and may include illumination elements for providing a controlled sequence of illumination at selected ones of the object sources. The system can assemble the printed data in a format suitable for printing as an identification card.

Apparatus for coupling multiple data sources onto a printed document

Apparatus and method for encoding and decoding a signal which is divided into a plurality of signal lines, each of which is a successive line of pixel signal values taken from a two-dimensional informational field. The apparatus for encoding includes the following elements: means for deriving a neighborhood value representing the pixel signal values taken from the two-dimensional field in the neighborhood of a pixel signal value to be encoded, which neighborhood value is based, at least in part, on a pixel signal value in another signal line than that in which the pixel signal value to be encoded is located: means for deriving the difference between the neighborhood value and the pixel signal value to be encoded; and means for outputting the difference as the encoded representation of the pixel signal value to be encoded. In an alternative embodiment of the apparatus for encoding, the means for deriving a neighborhood value bases the neighborhood value on an average of at least two of the signal values from the neighborhood of the pixel signal value to be encoded.

Data compression apparatus and method for encoding and decoding

A beamformer device for forming at least one beam from the outputs of a sensor array, including: a plurality of radiation sources; means for providing to each radiation source a signal from an associated one of the sensors in the sensor array; a detector array of radiation-sensitive means for providing a series of spaced signals representing radiation incident from each of the radiation sources; and means for varying the delays between the spaced signals for optimizing the response of the device to a signal from a predetermined direction.

Beam former having variable delays between LED output signals

A system for precisely determining the position of a beam of incident radiation. In one embodiment in the disclosure the system is utilized in an orbiting, Ritchey-Chretien telescope to determine the precise position of the image of a guide star in the focal plane of the telescope. In that embodiment a first reticle plate, having concentric ring reticle lines, is located at the edge of the tangential focal surface of the telescope and outside of the focal area being used for observation. A second reticle plate, having radial reticle lines, is located adjacent to the first reticle plate at the edge of the sagittal focal surface of the telescope and outside of the focal area being used for observation. A relay lens system and an image dissector tube are positioned behind the reticle plates so that light refracted by the reticle plates is passed by the relay lens system to the image dissector tube. A guide star is imaged on the first and second reticle plates. Light in the star image which is imaged onto either an apex or a groove in the reticle plates is split into separate beams in dependence upon the exact position of the image relative to the apex or groove. The position of the guide star image is precisely located first in a coarse position mode and secondly in a fine position mode. In the coarse position mode the image dissector tube aperture is scanned to find the overall locations of the separate beams, and the deflection signals of the image dissector tube at those locations determine the particular apex or groove in each reticle plate upon which the star is imaged. In the fine position mode the amount of light in each of the separate beams formed by the reticle plates is measured by the image dissector tube in a photon counting mode. This determines the exact position of the star image relative to the particular apex or groove in each reticle plate upon which the star image is incident.

Growing community of inventors

Sudbury, MA, United States of America

William C Bradley