Patents Assigned to Datalogic S.p.A.
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Patent number: 6268947Abstract: A mirror mount for a rotor provided with a preselected number of external faces suitable for covering with mirrors and an internal structure for connection to an electric motor, in which at least one external face of said mirror mount is provided with projections for supporting a mirror and recesses suitable for holding an adhesive compound for fixing said mirror to said face.Type: GrantFiled: September 7, 2000Date of Patent: July 31, 2001Assignee: Datalogic S.p.A.Inventors: Maurizio Zucchini, Claudio Angelini
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Patent number: 6260764Abstract: The detecting method described is conceived for use in a bar code decoding system based on digital processing of signals. it functions to process in real time a signal from an A/D converter and determined the portions of this signal which contain a likely bar code and rejecting the portions that surely do not contain a code. Only the former are signaled to a subsequent decoding process. The method steps are essentially the following: determining local maxima and minima of the digitalized analog signal; determining valid transitions; calculating the side of constant brightness zones located between two successive valid transitions; determining likely codes; if appropriate, repositioning the code starting zone; and if appropriate, analyzing detected potential codes for congruence, and signaling the likely codes.Type: GrantFiled: December 22, 1998Date of Patent: July 17, 2001Assignee: Datalogic S.p.A.Inventors: Rinaldo Zocca, Matteo Calzolari
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Patent number: 6260001Abstract: The process uses information from the scan sweeps of a laser scanner to obtain a set of stipulated areas which correspond to successive cross-sections of the object and are reckoned by moving the object relative to the scanner. The volume is obtained by multiplying each of these areas by the feed distance of the object. The angles of inclination of the scan plan can selectively be taken into account, or ignored when sufficiently small. The volume measurement may be taken at the same time as an optical code provided on the object is read.Type: GrantFiled: December 30, 1997Date of Patent: July 10, 2001Assignee: Datalogic S.p.A.Inventor: Moreno Bengala
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Patent number: 6219434Abstract: A method of locating an optical code of the maxicode type wherein a central target element comprises three concentric black rings separated by two white annular spaces and a white circular central space defining the center of the target element. The method includes the steps of: acquiring and binary-coding an image of the optical code; examining rows and columns of the binary-coded image, each row or column having black elements, each defined by at least one elementary representation unit of a first binary value, and white elements, each defined by at least one elementary representation unit of a second binary value; performing a sequence control step to locate, in each examined row or column of the image, at least one predetermined sequence of white and black elements; and performing an assigning step in which the rows or columns in the image containing a sequence of white and black elements corresponding to the predetermined sequence are recognized as intersecting the center of the target element.Type: GrantFiled: November 16, 1998Date of Patent: April 17, 2001Assignee: Datalogic S.p.A.Inventors: Claudio Saporetti, Stefano Amorosi
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Patent number: 6215280Abstract: A portable optical code reader, in particular for bar codes, having at least one supply battery; an electronic circuit with a microprocessor; and optoelectronic lighting and receiving devices cooperating with the microprocessor to read an optical code, in particular a bar code. The microprocessor also estimates the charge of the battery on the basis of the maximum charge storable in the battery, of measured recharge units supplied when recharging the battery, and of charge units estimated to have been consumed during operation of the reader.Type: GrantFiled: November 16, 1998Date of Patent: April 10, 2001Assignee: Datalogic S.p.A.Inventor: Andrea Cavazzini
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Patent number: 6177979Abstract: An optical code scanning reader comprising laser beam generating elements focused at different distances from an optical receiver element having an optical axis and a photoreceiver element having a preselected photosensitive area; the laser beams travel along a minimum of two different optical paths in the reader and at least one of the two optical paths is offset in respect to the optical axis; the value of the offset (Ho) is preselected in such a way that the quantity of light diffused by the code which reaches the photosensitive area for each beam attains a preselected value.Type: GrantFiled: December 8, 1998Date of Patent: January 23, 2001Assignee: Datalogic, S.p.A.Inventor: Guido Maurizio Oliva
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Patent number: 6169620Abstract: A mirror mount for a rotor provided with a preselected number of external faces suitable for covering with mirrors and an internal structure for connection to an electric motor, in which at least one external face of the mirror mount is provided with projections for supporting a mirror and recesses suitable for holding an adhesive compound for fixing the mirror to the face.Type: GrantFiled: December 8, 1998Date of Patent: January 2, 2001Assignee: Datalogic S.p.A.Inventors: Maurizio Zucchini, Claudio Angelini
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Patent number: 6157453Abstract: The invention relates to a process for discriminating the color of a surface, comprising the steps of acquiring at least a colored acquisition surface, comparing the color of a detecting surface with said at least one color previously acquired so that said color can be recognized.Type: GrantFiled: April 8, 1999Date of Patent: December 5, 2000Assignee: Datalogic S.p.A.Inventors: Maria Lisa Tamanti, Gianfranco Righi
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Patent number: 6135352Abstract: A scanning reader of an optical code placed on a front wall of an article in movement comprises generators that form at least one first and one second light beam lying on planes inclined by a first and by a second prefixed angle (.alpha., .beta.) with respect to the front wall so as to explore a first and a second area of the front wall by at least one first and one second scanning line and read the optical code within an overall distance range, along the direction of forward movement of the article, greater than the useful range of reading distance that can be reached by one light beam only.Type: GrantFiled: December 10, 1997Date of Patent: October 24, 2000Assignee: Datalogic S.p.A.Inventor: Lorenzo Girotti
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Patent number: 6129280Abstract: The reading method includes the step of successively performing a first and at least a second scan of an optical code along a first and, respectively, second scanning line parallel to each other. More specifically, the first and second scan of the optical code are performed by generating a first and a second laser light ray movable respectively in a first and second scanning plane distinct from and intersecting each other.Type: GrantFiled: July 17, 1998Date of Patent: October 10, 2000Assignee: Datalogic S.p.A.Inventors: Antonio De Renzis, Claudio Mazzone
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Patent number: 6122061Abstract: The present invention concerns an optical apparatus for measuring the distance of an object and characterized in that it comprises a case, a first converging lens housed in the case, a light source housed in the case and acting through the first converging lens to illuminate in a direction of illumination an object, a second converging lens housed in the case in a position such as to collect, in a direction angularly deviated with respect to the illumination direction, a light beam diffused by the illuminated object, detection means housed in the case in a position such as to collect the light beam diffused by the object illuminated and penetrating into the case through the second converging lens, with said light beam being collected on detection means from the second converging lens at a point of incidence having a position varying as a function of the distance of the object, with the detection means being capable of generating two electrical signals of different magnitude depending on the point of incidenceType: GrantFiled: December 22, 1997Date of Patent: September 19, 2000Assignee: Datalogic S.p.A.Inventors: Ciro Adelmo Pilone, Gianfranco Righi
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Patent number: 6116508Abstract: A portable code reading device, in particular for reading optical codes, wherein a hand-held casing supports an electronic viewing device for generating signals related to the image of an examined optical code, and an electronic circuit cooperating with the viewing device to generate first digital data representing the examined optical code. The reading device also has a manually operated pointing device for generating second digital data by which to control a pointer of a remote processing device having a graphic interface usable in conjunction with the pointer.Type: GrantFiled: July 17, 1998Date of Patent: September 12, 2000Assignee: Datalogic S.p.A.Inventor: Paolo Cruciani
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Patent number: 6102292Abstract: A method of compensating the edge positions of a signal generated by scanning elements of a bar code, the method including the steps of lighting the code and determining the light diffused by the code to generate in response a signal having a substantially alternating waveform defined by a sequence of high-amplitude portions separated by and joined to low-amplitude portions by steeply sloping edges of the waveform. A number of local minimum and maximum points of the waveform are determined to determine coordinates defining approximate edge positions. The coordinates are then corrected to generate modified coordinates, each relative to a corrected position of the edge compensating for any shift in the edge induced by blurring of the signal.Type: GrantFiled: December 4, 1998Date of Patent: August 15, 2000Assignee: Datalogic S.p.A.Inventors: Rinaldo Zocca, Marco Bottazzi, Francesco Caselli, Claudio Saporetti
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Patent number: 6102291Abstract: The apparatus of the invention consists of an ordinary laser scanner (such as for example those used for the reading of optical codes) in which the data obtained from the scanning are processed, for detecting the presence and the position, on a supply plane, of objects having heights even very different among themselves. The detection of the presence of an object, and its position, is carried out taking advantage of the luminous contrast between the surface of the same object and the bearing surface of the supply plane. The detection of the presence and the position of the object can be combined with the reading of an optical code positioned on the object. Furthermore, the use of a modulated light laser scanner, allows the implementation of the above mentioned operations with the measurement of the distance of the object from the same scanner, in this way calculating the overall encumbrance of the same object.Type: GrantFiled: August 17, 1998Date of Patent: August 15, 2000Assignee: Datalogic, S.p.A.Inventor: Claudio Mazzone
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Patent number: 6098883Abstract: A method of estimating the mid-points of elements of a bar code, wherein the code is illuminated, and the light diffused by the code is picked up to generate in response a signal having a substantially alternating waveform profile defined by high-amplitude zones alternating with low-amplitude zones; each high-amplitude zone corresponding to a space of the code, and each low-amplitude zone corresponding to a bar of the code. The signal is then quantized to obtain a discretized waveform having a number of local maximum and minimum points, and an observation window of a given width is defined by which to observe the waveform. The observation window is positioned on the maximum and minimum points of the discretized waveform to eliminate redundant maximum and minimum points within the observation window.Type: GrantFiled: December 4, 1998Date of Patent: August 8, 2000Assignee: Datalogic S.p.A.Inventors: Rinaldo Zocca, Marco Bottazzi, Francesco Caselli
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Patent number: 6068189Abstract: A focusing device (1) for a light receiving device (3) having at least one lens device (5) and a light sensor (7) exposed to the incident light is proposed, which is distinguished by the fact that the lens device (5) is designed to be stationary and that an actuation device (9), which displaces the light sensor (7) parallel to itself, and a position sensor (27), which detects the current position of the light sensor (7), are provided.Type: GrantFiled: January 21, 1997Date of Patent: May 30, 2000Assignee: Datalogic S.p.A.Inventor: Claudio Mazzone
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Patent number: 6061645Abstract: For measuring the volume, the process utilizes the same means as are used for reading an optical code, such as a laser scanner or CCD reader. A choice of different measuring procedures are proposed which suit different situations and are all based on scannings and readings performed on the object. Where required, the process can accommodate the inclination angles of the scan planes. The volume measurement is accompanied by the reading of an optical code provided on the object.Type: GrantFiled: December 30, 1997Date of Patent: May 9, 2000Assignee: Datalogic S.p.A.Inventors: Moreno Bengala, Alessandro Golfarelli, Stefano Amorosi, Guglielmo Piazzi
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Patent number: 6049406Abstract: A scanner for the acquisition of optical information, in particular bar codes, is proposed, which has a laser device (3), a receiving device (23), which detects laser light (25) reflected from the surface, carrying the optical information, of the object (13), and a measuring device (27), which emits a control signal corresponding to the distance from the object (13). The scanner (1) is distinguished by the fact that the laser device (3) has a single laser light source (37), and that a focusing device (31) is provided which can receive the control signal of the measuring device (27) and enables the scanner (1) to be adapted to the distance from the object (13), on the surface of which the optical information or the bar code (15) is present.Type: GrantFiled: January 27, 1997Date of Patent: April 11, 2000Assignee: Datalogic S.p.A.Inventor: Rinaldo Zocca
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Patent number: 6047893Abstract: A method wherein an image of an object bearing an optical code is divided into a number of elementary images for which a brightness gradient vector is calculated. The calculated gradients of a magnitude above a given threshold value (Glim) are transformed to eliminate the information relative to the direction of the vector, while maintaining the information relative to the path of the vector. The transformed and quantized vectors of a subimage including a number of elementary images are added to calculate a total gradient vector, which is compared with reference values to select significant subimages containing a sufficient number of gradient vectors of substantially the same path.Type: GrantFiled: December 30, 1997Date of Patent: April 11, 2000Assignee: Datalogic S.p.A.Inventor: Claudio Saporetti
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Patent number: RE37017Abstract: Bar code reader including two sources which are enabled to emit respective laser beams with a cyclic alternation; the laser beams are focused by optical elements on two different regions of a read area. Reflected rays from the read area are processed by a decoding unit operatively connected to the laser-beam sources so that when the presence of a code in the read area is detected, only the laser beam which is focused on the region in which the bar code is present remains enabled.Type: GrantFiled: August 29, 1997Date of Patent: January 16, 2001Assignee: Datalogic S.p.A.Inventors: Giuseppe Stanzani, Claudio Mazzone