Patents by Inventor Slobodan Cvetkovic
Slobodan Cvetkovic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090127340Abstract: A reflective decoding device is provided for use in decoding an encoded image comprising a latent image encoded using at least one encoding parameter. The device comprises a substrate with a reflective surface portion having a surface topography comprising a predetermined pattern of topographical features. The predetermined pattern is configured with at least one geometric characteristic corresponding to the at least one encoding parameter so that placement of a light-transmissive sheet having the encoded image formed thereon over the predetermined pattern of topographical features allows the latent image to be viewed.Type: ApplicationFiled: January 28, 2009Publication date: May 21, 2009Applicant: Graphic Security Systems CorporationInventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Patent number: 7512280Abstract: A method of producing a digital multiple-level encoded image is presented. The method comprises obtaining a digital authentication image, obtaining a first encoding parameter set comprising one or more encoding parameters, and constructing a first encoded image. The first encoded image is constructed using a first encoding methodology, the digital authentication image and the first encoding parameter set. The method further comprises obtaining a second encoding parameter set comprising one or more encoding parameters and constructing a second encoded image using a second encoding methodology, the first encoded image and the second encoding parameter set. The second encoded image may be decoded to reveal the first encoded image using a decoder having characteristics corresponding to at least a portion of the encoding parameters of the second encoding parameter set.Type: GrantFiled: October 24, 2007Date of Patent: March 31, 2009Assignee: Graphic Security Systems CorporationInventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Patent number: 7512249Abstract: A method is presented for decoding an encoded image produced from a primary image and at least one secondary image using at least one encoding parameter. The encoded image is formed so that when the encoded image is printed, the secondary image is not discernible to a viewer without an optical decoding device having characteristics corresponding to the at least one encoding parameter. The method comprises obtaining a digital version of the encoded image, determining the at least one encoding parameter, and constructing a decoded image from the digital encoded image using at least one of the encoding parameters in the encoding parameter set.Type: GrantFiled: February 28, 2005Date of Patent: March 31, 2009Assignee: Graphic Security Systems CorporationInventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Patent number: 7487915Abstract: A reflective decoding device is provided for use in decoding an encoded image comprising a latent image encoded using at least one encoding parameter. The device comprises a substrate with a reflective surface portion having a surface topography comprising a predetermined pattern of topographical features. The predetermined pattern is configured with at least one geometric characteristic corresponding to the at least one encoding parameter so that placement of a light-transmissive sheet having the encoded image formed thereon over the predetermined pattern of topographical features allows the latent image to be viewed.Type: GrantFiled: August 25, 2006Date of Patent: February 10, 2009Assignee: Graphic Security Systems CorporationInventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Publication number: 20080267514Abstract: A method is provided for determining whether a test object is an authentic object having an authentication image applied to an authentication image area thereof. The method comprises positioning and orienting a portable image acquisition device for selectively viewing and capturing a magnified image of a target surface area of the test object. The target surface area corresponds to the authentication image area of an authentic object. The method further comprises capturing a magnified digital image of the target surface area using the image capture acquisition device. The captured digital image is then processed to obtain a processed digital image and an authentication result is determined based on whether the processed digital image meets predetermined authentication criteria.Type: ApplicationFiled: February 11, 2008Publication date: October 30, 2008Inventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Patent number: 7421581Abstract: An automated method of producing encoded images for incorporation into a digital document is provided. The method comprises receiving a request from a user to produce an encoded image. The request includes user-supplied data for producing the encoded image, the user-supplied data including user-supplied authentication indicia and/or at least one user-supplied encoding parameter. The method further comprises determining whether the user is authorized to produce an encoded image using the user-supplied data. Responsive to a determination that the user is authorized to produce an encoded image using the user-supplied data, encoding actions are carried out. The encoding actions include establishing at least one digitized authentication image and establishing an encoding parameter set including any user-supplied encoding parameters. The encoding parameter set is usable to encode one or more of the at least one digitized authentication image.Type: GrantFiled: May 18, 2004Date of Patent: September 2, 2008Assignee: Graphic Security Systems CorporationInventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Publication number: 20080144947Abstract: A method of authenticating an object using optically decodable encoded images is presented. The method comprises attaching a digital data storage medium to the object and storing an optically decodable digital encoded image in the data storage medium. The digital encoded image comprises authentication information determinable by decoding the digital encoded image. The method further comprises downloading the digital encoded image from the digital data storage medium and applying a digital decoding algorithm to the captured digital image to establish a decoding result. The decoding result is then compared to object authentication criteria to establish an authentication result.Type: ApplicationFiled: December 13, 2006Publication date: June 19, 2008Inventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Patent number: 7386177Abstract: An automated method of producing an encoded image for use in authenticating a printed version of a digital document is presented. The method comprises establishing at least one digitized authentication image, receiving at least one user-supplied encoding parameter, and determining at least one non-user-supplied encoding parameter. The method further comprises establishing a first encoding parameter set including the at least one user-supplied encoding parameter and the at least one non-user-supplied encoding parameter. The first encoding parameter set is usable to encode one or more of the at least one digitized authentication image. The method also comprises encoding one or more of the at least one digitized authentication image using the first encoding parameter set to produce a final encoded image.Type: GrantFiled: May 18, 2004Date of Patent: June 10, 2008Assignee: Graphic Security Systems Corp.Inventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Publication number: 20080088880Abstract: A method is presented for decoding an encoded image produced from a primary image and at least one secondary image using at least one encoding parameter. The encoded image is formed so that when the encoded image is printed, the secondary image is not discernible to a viewer without an optical decoding device having characteristics corresponding to the at least one encoding parameter. The method comprises obtaining a digital version of the encoded image, determining the at least one encoding parameter, and constructing a decoded image from the digital encoded image using at least one of the encoding parameters in the encoding parameter set.Type: ApplicationFiled: October 5, 2007Publication date: April 17, 2008Applicant: Graphic Security Systems CorporationInventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic
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Publication number: 20080044056Abstract: A method is provided for determining whether an object is an authentic object to which an expected encoded image has been applied. The expected encoded image having been constructed by encoding an authentication image using a set of one or more encoding parameters. The method comprises receiving a digital image of at least a portion of the test object including a target area where the expected encoded image would be applied if the test object is an authentic object. The method further comprises determining the one or more encoding parameters and applying a digital decoding algorithm to the captured digital image to establish a decoding result The decoding result may then be compared to object authentication criteria to establish an authentication result. In particular embodiments of the invention, the actions of receiving, determining, applying and comparing are carried out by an authentication server and the digital image is received from an inspection processor over a network.Type: ApplicationFiled: October 29, 2007Publication date: February 21, 2008Applicant: Graphic Security Systems CorporationInventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic, Igor Ilic
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Publication number: 20070057061Abstract: A reflective decoding device is provided for use in decoding an encoded image comprising a latent image encoded using at least one encoding parameter. The device comprises a substrate with a reflective surface portion having a surface topography comprising a predetermined pattern of topographical features. The predetermined pattern is configured with at least one geometric characteristic corresponding to the at least one encoding parameter so that placement of a light-transmissive sheet having the encoded image formed thereon over the predetermined pattern of topographical features allows the latent image to be viewed.Type: ApplicationFiled: August 25, 2006Publication date: March 15, 2007Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic
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Patent number: 7114074Abstract: An automated method for authorizing and controlling the production of optically encoded images is provided. The method comprises receiving from a user data processor a request for authorization to produce an encoded image. The authorization request includes user-supplied data comprising at least one authentication image file. The method further comprises determining whether the user is authorized to produce an encoded image using the user-supplied data. Responsive to a determination that the user is authorized to produce an encoded image using the user-supplied data, an authentication image signature is generated from the at least one authentication image file using an image signature algorithm and a positive authorization response is returned to the user data processor. The positive authorization response includes the authentication image signature.Type: GrantFiled: December 21, 2004Date of Patent: September 26, 2006Assignee: Graphic Security Systems CorporationInventors: Alfred V. Alasia, Alfred J. Alasia, Thomas C. Alasia, Slobodan Cvetkovic
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Publication number: 20060029278Abstract: A method of producing a digital multiple-level encoded image is presented. The method comprises obtaining a digital authentication image, obtaining a first encoding parameter set comprising one or more encoding parameters, and constructing a first encoded image. The first encoded image is constructed using a first encoding methodology, the digital authentication image and the first encoding parameter set. The method further comprises obtaining a second encoding parameter set comprising one or more encoding parameters and constructing a second encoded image using a second encoding methodology, the first encoded image and the second encoding parameter set. The second encoded image may be decoded to reveal the first encoded image using a decoder having characteristics corresponding to at least a portion of the encoding parameters of the second encoding parameter set.Type: ApplicationFiled: August 4, 2005Publication date: February 9, 2006Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic
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Publication number: 20050276442Abstract: A method is provided for determining whether an object is an authentic object to which an expected encoded image has been applied. The expected encoded image having been constructed by encoding an authentication image using a set of one or more encoding parameters. The method comprises receiving a digital image of at least a portion of the test object including a target area where the expected encoded image would be applied if the test object is an authentic object. The method further comprises determining the one or more encoding parameters and applying a digital decoding algorithm to the captured digital image to establish a decoding result. The decoding result may then be compared to object authentication criteria to establish an authentication result. In particular embodiments of the invention, the actions of receiving, determining, applying and comparing are carried out by an authentication server and the digital image is received from an inspection processor over a network.Type: ApplicationFiled: August 19, 2005Publication date: December 15, 2005Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic, Igor Ilic
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Publication number: 20050237577Abstract: A method is presented for decoding an encoded image produced from a primary image and at least one secondary image using at least one encoding parameter. The encoded image is formed so that when the encoded image is printed, the secondary image is not discernible to a viewer without an optical decoding device having characteristics corresponding to the at least one encoding parameter. The method comprises obtaining a digital version of the encoded image, determining the at least one encoding parameter, and constructing a decoded image from the digital encoded image using at least one of the encoding parameters in the encoding parameter set.Type: ApplicationFiled: February 28, 2005Publication date: October 27, 2005Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic
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Publication number: 20050188205Abstract: An automated method of producing encoded images for incorporation into a digital document is provided. The method comprises receiving a request from a user to produce an encoded image. The request includes user-supplied data for producing the encoded image, the user-supplied data including user-supplied authentication indicia and/or at least one user-supplied encoding parameter. The method further comprises determining whether the user is authorized to produce an encoded image using the user-supplied data. Responsive to a determination that the user is authorized to produce an encoded image using the user-supplied data, encoding actions are carried out. The encoding actions include establishing at least one digitized authentication image and establishing an encoding parameter set including any user-supplied encoding parameters. The encoding parameter set is usable to encode one or more of the at least one digitized authentication image.Type: ApplicationFiled: May 18, 2004Publication date: August 25, 2005Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic
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Publication number: 20050177726Abstract: An automated method for authorizing and controlling the production of optically encoded images is provided. The method comprises receiving from a user data processor a request for authorization to produce an encoded image. The authorization request includes user-supplied data comprising at least one authentication image file. The method further comprises determining whether the user is authorized to produce an encoded image using the user-supplied data. Responsive to a determination that the user is authorized to produce an encoded image using the user-supplied data, an authentication image signature is generated from the at least one authentication image file using an image signature algorithm and a positive authorization response is returned to the user data processor. The positive authorization response includes the authentication image signature.Type: ApplicationFiled: December 21, 2004Publication date: August 11, 2005Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic
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Publication number: 20050069170Abstract: An automated method of producing an encoded image for use in authenticating a printed version of a digital document is presented. The method comprises establishing at least one digitized authentication image, receiving at least one user-supplied encoding parameter, and determining at least one non-user-supplied encoding parameter. The method further comprises establishing a first encoding parameter set including the at least one user-supplied encoding parameter and the at least one non-user-supplied encoding parameter. The first encoding parameter set is usable to encode one or more of the at least one digitized authentication image. The method also comprises encoding one or more of the at least one digitized authentication image using the first encoding parameter set to produce a final encoded image.Type: ApplicationFiled: May 18, 2004Publication date: March 31, 2005Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Slobodan Cvetkovic