Abstract: A monolithic micro scanning device comprising multiple substrates; source of light for generating a light beam disposed on one of said substrates; and micro mirror disposed on one of said substrates for repetitively and cyclically moving light beam to scan insignia impregnated on a surface of different articles is described. More particularly, the scanning device comprises a combination of stacked dies in suitable form factor to optimize a system configuration and packaging.

Abstract: The invention relates to a device and a process for acquiring bichromatic bar codes, with a two-dimensional sensor with electronic scanning. The height Hy of the scanned portion is modified between at least two successive scanning operations. Thus, the device is or may be adapted to the type and/or to characteristics not known in advance of the code to be read.

Abstract: A device and a process for acquiring symbols by interleaving data samples in a plurality of data sets gathered during sampling of returns from a plurality of scanning passes. In one embodiment, the sampling frequency is proportional to the scanning frequency by a quotient of twice the number of samples in a representation and an integer such that the quotient is an irreducible fraction.

Abstract: The invention relates to a device and a process for acquiring bichromatic bar codes, with a two-dimensional sensor with electronic scanning. The height Hy of the scanned portion is modified between at least two successive scanning operations. Thus, the device is or may be adapted to the type and/or to characteristics not known in advance of the code to be read.

Abstract: A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation ? of their gradient in relation to a horizontal axis are identified. The stream of digital data is stored in the form of two successive lines, each of n points P(i, j), for each of the lines the n points of said line are extracted successively, and for each point Pc(i, j) extracted, the so-called current point, the three points having inferior coordinates Pa(i?l, j?l), Pb(i, j?l), Pd(i?l, j) directly neighbouring said current point are extracted, successively the value of the orientation of the current point Pc is compared with that of the neighbouring points Pa, Pb and Pd. The values of the orientations of the points Pb and Pd are compared, the result of a comparison is validated if the points are contour points and if the values of their orientation are close.

Abstract: A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation ? of their gradient in relation to a horizontal axis are identified. The stream of digital data is stored in the form of two successive lines, each of n points P(i, j), for each of the lines the n points of said line are extracted successively, and for each point Pc(i, j) extracted, the so-called current point, the three points having inferior coordinates Pa(i?1, j?1), Pb(i, j?1), Pd(i?1, j) directly neighboring said current point are extracted, successively the value of the orientation of the current point Pc is compared with that of the neighboring points Pa, Pb and Pd. The values of the orientations of the points Pb and Pd are compared, the result of a comparison is validated if the points are contour points and if the values of their orientation are close.

Abstract: A method to improving aiming visibility, reducing tilt dependence and improving read range of a scanner with a very thin lighting path embedding the lighting path 3D volume of view. Physical pixel height is enlarged to aid optical imaging plane alignment. A selective filter centered on the lighting wavelength is placed in the image path. The height of the pixel is artificially reduced to m*w, where m is the lens magnification and w is the light thickness. A laser scanner utilizing a 2D resonant electrostatic micro-mirror to enable projection or acquisition of a discrete image. Diagonal progressive scanning is used to maximize the frequency values so shock resistance of the mirror is increased.

Abstract: A machine-readable symbol reader includes a microfluidic lens assembly providing responsive, reliable auto-focus functionality. A range finder may provide distance to a planar target (e.g., barcode symbol) information for use in auto-focusing, with or without localization. Illumination system, if included, is selectively controlled based on the distance to target and auto-focusing functionality to substantially reduce power consumption. The localization may color optical sensors.

Abstract: A method of capturing images using a laser scanner equipped with a 2D micro actuator. The 2D micro actuator allows for laser beam location without the use of additional components dedicated to determining beam location. The 2D micro actuator is used to stabilize the positioning function of the spot in the scene. The micro actuator is a 1D micro actuator suspended within a second framework by two torsion bars and two pairs of orthogonal additional electrodes. The image is scanned, a precise rectangle of the character sensing field is generated and the image is created by keeping a substantially constant pitch.

Abstract: The invention relates to a device and a process for acquiring bichromatic bar codes, with a two-dimensional sensor with electronic scanning. The height Hy of the scanned portion is modified between at least two successive scanning operations. Thus, the device is or may be adapted to the type and/or to characteristics not known in advance of the code to be read.

Abstract: An integrated imaging scanning system is disclosed. The said system is comprising a substrate, a light emitting element connected to the substrate for producing a beam of light directed to an insignia, a light directing element positioned relatively the light emitting element for redirecting the beam of light aimed at the insignia, a diffraction grating element to remove the speckle phenomena from the source of light, and a compound optical element for shaping the beam of light directed to the insignia.

Abstract: The invention concerns a process for the parameterization of scanners for printed codes, in which in a preliminary phase a coding symbology is selected, in which character strings representing parameterization commands and parameters assigned to said commands are defined, these character strings are stored and a display menu of various suggested options is established for each command and; various parameter values. Furthermore, according to this process, at the time of the parameterization of a scanner, after selection of the various commands and parameters, the selected character strings are reassembled into at least one sequence of character strings of a length at the most equal to that of the scanning range of the scanners, each of said sequences is converted to obtain the corresponding graphical symbol, and each of these symbols is read by means of the scanners.

Abstract: The invention relates to a device and a process for acquiring bichromatic bar codes, with a two-dimensional sensor with electronic scanning. The height Hy of the scanned portion is modified between at least two successive scanning operations. Thus, the device is or may be adapted to the type and/or to characteristics not known in advance of the code to be read.

Abstract: A monolithic micro scanning device comprising multiple substrates; source of light for generating a light beam disposed on one of said substrates; and micro mirror disposed on one of said substrates for repetitively and cyclically moving light beam to scan insignia impregnated on a surface of different articles is described. More particularly, the scanning device comprises a combination of stacked dies in suitable form factor to optimize a system configuration and packaging.

Abstract: A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation &thgr; of their gradient in relation to a horizontal axis are identified. The stream of digital data is stored in the form of two successive lines, each of n points P(i, j), for each of the lines the n points of said line are extracted successively, and for each point Pc(i, j) extracted, the so-called current point, the three points having inferior coordinates Pa(i−1, j−1), Pb(i, j−1), Pd(i−1, j) directly neighbouring said current point are extracted, successively the value of the orientation of the current point Pc is compared with that of the neighbouring points Pa, Pb and Pd. The values of the orientations of the points Pb and Pd are compared, the result of a comparison is validated if the points are contour points and if the values of their orientation are close.

Abstract: A process for detection of straight-line segments in a stream of digital data that are representative of an image (m, n) in which the contour points of said image each defined by the modulus and the orientation &thgr; of their gradient in relation to a horizontal axis are identified. The stream of digital data is stored in the form of two successive lines, each of n points P(i, j), for each of the lines the n points of said line are extracted successively, and for each point Pc(i, j) extracted, the so-called current point, the three points having inferior coordinates Pa(i−1, j−1), Pb(i, j−1), Pd(i−1, j) directly neighbouring said current point are extracted, successively the value of the orientation of the current point Pc is compared with that of the neighbouring points Pa, Pb and Pd. The values of the orientations of the points Pb and Pd are compared, the result of a comparison is validated if the points are contour points and if the values of their orientation are close.

Abstract: A method of capturing images using a laser scanner equipped with a 1D micro actuator. The 1D micro actuator allows for laser beam location without the use of additional components dedicated to determining beam location. The 1D micro actuator is used to stabilize the positioning function of the spot in the scene. The micro actuator is a 1D micro actuator suspended within a second framework by two torsion bars and two pairs of orthogonal additional electrodes. The image is scanned, a precise rectangle of the character sensing field is generated and the image is created by keeping a substantially constant pitch.

Abstract: An optoelectronic device for acquiring images of planes, such as bar codes, includes a deflector for deflecting an incident beam emitted by a light source such as an oscillating or rotating cyclic polygonial deflector or mirror. A driver osscilates or rotates the deflector in such a way that the incident beam describes, during each cycle, angular scanning adapted to generate at least one elementary scanning line on the plane. A closed loop control circuit controls the driver and is connected, on the one hand, to the clock in order to receive the transfer signal &PHgr;TG and, on the other hand, to the driver and adapted to synchronize the beginning of each scanning cycle in phase and frequency with the signal &PHgr;TG emitted by the clock.

Abstract: An optoelectronic device for acquisition of images of objects, such as barcodes, includes a lighting system which is designed such that the axis of the light beam intersects the optical axis. A reflector that allows the image beam to pass through, and can reflect the light beam, is disposed such as to intercept the light beam, and is inclined relative to the optical axis, by an angle which is such that the light beam is centered on the optical axis. The lighting system is designed to light the useful optical field throughout the entire depth of the field, and the angle &agr;, in which the lighting system is seen from the object plane, is such that α ≤ Arc ⁢   ⁢ tg ⁢ L 5 ⁢ P , in which L is the width of the object plane, and P is the distance between the object and the lighting system.

Abstract: A hand held scanner with a single multi-conductor cable supplying both power and data conductors. When connected, the cable supplies power for operation and or charges a local power supply in the scanner. Data conductors in the cable transmit scanned data to a host processor allowing continuous operation even in noisy RF environments that may inhibit RF communication between RF transmitters which may be supplied in the scanner and host processor.