Patent application number | Description | Published |
20090049304 | DIGITAL WATERMARK EMBEDDING APPARATUS AND METHOD, AND DIGITAL WATERMARK ANALYSIS APPARATUS, METHOD AND PROGRAM - A digital watermark embedding apparatus comprises below units. A first generation unit generates a plurality of symbol sequences each of which includes a plurality of symbols including ranks, each of the ranks being uniquely numbered among each of the symbol sequences, each of the symbol sequences uniquely corresponding to each of a plurality of identification information items to be embedded as digital watermark information into each of copies of digital contents. A second generation generates a plurality of to-be-embedded codes corresponding to each of the symbols in each of the symbol sequences. An embedding unit embeds the to-be-embedded codes in each of the copies. | 02-19-2009 |
20140334622 | AUTHENTICATION DEVICE, OUTPUT DEVICE, VERIFICATION DEVICE AND INPUT DEVICE - According to an authentication device is for authenticating the validity of a subject ciphertext generated by encrypting a plaintext using homomorphic encryption. The authentication device includes a commitment generator and a response generator. The commitment generator is configured to generate a commitment from a randomly selected verification value, and transmit the commitment to a verification device for verifying the validity of the subject ciphertext. The response generator is configured to generate a response value generated by computing from an acquired challenge value, the plaintext, and the verification value, and transmit the response value to the verification device. The response generator is configured to generate the response value by a third operation where a result of a first operation using the response value is equal to a result of processing the challenge value, the subject ciphertext, and the commitment by a second operation. | 11-13-2014 |
20140337403 | COMPUTING DEVICE, COMPUTING METHOD, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, a computing device includes an input unit and a power computing unit. The input unit is configured to input, in a form of vector representation, an element of an algebraic torus selected from elements of an M-th (M is an integer of 2 or greater) degree extension field obtained by extending a finite filed by an M-th order polynomial. The power computing unit is configured to compute an N-th (N is an integer of 2 or greater) power of the input element of the algebraic torus, computing the N-th power being performed on the basis of an arithmetic expression for computing the N-th power of an element of the M-th degree extension field expressed in the form of vector representation, and the arithmetic expression being satisfied when the element of the M-th degree extension field satisfies a condition for an element of the algebraic torus. | 11-13-2014 |
Patent application number | Description | Published |
20080198463 | ZOOM LENS SYSTEM AND OPTICAL APPARATUS USING THE SAME - Providing a zoom lens system with a vibration reduction function excellently correcting aberrations with accomplishing compact, lightweight, and slim upon being accommodated, and to provide an optical apparatus using the zoom lens system. The system consists of, in order from an object, a first group having negative power, a second group having positive power. Upon zooming from a wide-angle end to a telephoto end, a distance between the first group and the second group decreases. The first group consists of, in order from the object, a first lens having negative power and a second lens having positive power. The second group consists of, in order from the object, a third lens having positive power, a fourth lens having negative power, and a fifth lens having positive power. An image blur is corrected by shifting the second group as a whole in a direction substantially perpendicular to the optical axis. | 08-21-2008 |
20080212202 | ZOOM LENS SYSTEM AND OPTICAL APPARATUS USING THE SAME - Providing a zoom lens system excellently correcting various aberrations with accomplishing to be compact, lightweight, and slim upon being accommodated, and to provide an optical apparatus using the zoom lens system. The system consists of, in order from an object, a first group G | 09-04-2008 |
20080218878 | ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR FORMING AN IMAGE OF AN OBJECT - In a zoom lens ZL | 09-11-2008 |
20100195214 | ZOOM LENS, OPTICAL APPARATUS EQUIPPED THEREWITH AND METHOD FOR MANUFACTURING THE ZOOM LENS - A zoom lens ZL installed in an electronic still camera | 08-05-2010 |
20110134537 | ZOOM LENS SYSTEM, OPTICAL APPARATUS EQUIPPED THEREWITH, AND METHOD FOR ZOOMING ZOOM LENS SYSTEM - A zoom lens system ZL installed in an electronic still camera | 06-09-2011 |
20110141575 | ZOOM LENS SYSTEM, OPTICAL APPARATUS EQUIPPED WITH ZOOM LENS SYSTEM AND METHOD FOR ZOOMING ZOOM LENS SYSTEM - A zoom lens system ZL mounted in an electronic still camera | 06-16-2011 |
20110170195 | IMAGING LENS, OPTICAL APPARATUS INCLUDING IMAGING LENS AND METHOD FOR MANUFACTURING IMAGING LENS - An optical system includes, in order from an object side: a first lens group G | 07-14-2011 |
20110211263 | IMAGING LENS, OPTICAL APPARATUS INCLUDING IMAGING LENS AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens SL mounted in a digital single lens reflex camera | 09-01-2011 |
20120026590 | IMAGING LENS, OPTICAL APPARATUS INCLUDING IMAGING LENS AND METHOD FOR MANUFACTURING IMAGING LENS - An optical system includes, in order from an object side: a first lens group G | 02-02-2012 |
20120127590 | IMAGING LENS, OPTICAL APPARATUS EQUIPPED WITH IMAGING LENS AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens SL mounted in a single lens reflex digital camera | 05-24-2012 |
20140067204 | ELECTRONIC APPARATUS, PROCESSING SYSTEM, AND COMPUTER READABLE STORAGE MEDIUM - Provided is an electronic apparatus that perform an appropriate process according to a gesture of a subject person, the electronic apparatus including: a first input unit that inputs a detection result of a biosensor detecting a change in biological information of a person; a second input unit that inputs a recognition result of a recognition device recognizing an action of the person; and a processor that performs a process according to the action of the person based on input results of the first and second input units. | 03-06-2014 |
20140218300 | PROJECTION DEVICE - Provided is a user-friendly projection device including: an input unit that inputs an image of a subject person captured by an image capture unit; and a projection unit that projects a first image in accordance with a position of the subject person whose image is captured by the image capture unit. | 08-07-2014 |
Patent application number | Description | Published |
20090002174 | Wireless tag, wireless tag communication system, wireless tag access device, method of detecting corresponding wireless tags and computer readable medium - A wireless tag includes at least one of a signal radiation unit that radiates a first linking signal based on an instruction from a wireless tag access device, and a signal detection unit that detects a second linking signal that has been radiated and provides the second linking signal to the wireless tag access device. | 01-01-2009 |
20140335903 | ID MANAGEMENT DEVICE, PROGRAM, USER TERMINAL, AND ID MANAGEMENT SYSTEM - The present invention enables a user terminal to perform communication while maintaining anonymity of a user. An ID management device of the present invention includes a storage unit configured to store use status of identification information for communication of an application service provided within a predetermined area, an issuing unit configured to issue unused identification information to a user terminal provided with the application service, and an updating unit configured to, when unused identification information is issued, update the use status to indicate that the unused identification information is in use, and, when a use end condition for issued identification information is satisfied, update the use status to indicate that the issued identification information is unused. | 11-13-2014 |