Abstract: The present disclosure relates to a method, device, and computer program capable of detecting whether a brand logo is illegally being used by an unauthorized person using an image and text of the brand logo. The present disclosure provides a detection technique capable of accurately detecting illegal use of a brand logo even when variously transformed forms and background images are used to avoid legal use detection. According to embodiments of the present disclosure, since the logo identification model can be generated through the machine learning dataset based on the logo transformation images and the image illegal use information can be generated using the logo identification model, it is possible to more accurately detect the illegal use of the logo that is used in variously transformed forms. In addition, since the illegal use information on the logo text can be considered in addition to the logo image, it is possible to further increase the accuracy of the illegal use detection.

Abstract: Provided are an electronic device and method for detecting a malicious server. The method includes acquiring first feature information of a server Internet protocol (IP) of a malicious website, acquiring second feature information of a server IP of a comparative website, comparing the first feature information with the second feature information, and determining that the malicious website has been changed to the comparative website on the basis of the comparison result.

Abstract: Provided are an electronic device and method for detecting a malicious server. The method includes acquiring first feature information of a server Internet protocol (IP) of a malicious website, acquiring second feature information of a server IP of a comparative website, comparing the first feature information with the second feature information, and determining that the malicious website has been changed to the comparative website on the basis of the comparison result.

Abstract: The present disclosure relates to a method of crawling a website by a terminal. The method may include a method of crawling a website by a terminal including: modifying a header included in a hypertext transfer protocol (HTTP) request message to avoid bot detection; transmitting the HTTP request message to a client server through a proxy server providing a dynamic Internet protocol (IP); receiving a response message for accessing the website from the client server; collecting a tag for confirming an element displayed on a user screen in the response message; and performing the crawling based on the confirmation result.

Abstract: The present disclosure relates to a method of automatically detecting, by an electronic device, an abnormal transaction. The method may include: acquiring transaction information from an e-commerce server, the transaction information including unique information that is difficult for a user to arbitrarily change, arbitrary information that a user changes arbitrarily, and an access Internet protocol (IP) address; extracting a first identifier based on the unique information; extracting a plurality of second identifiers based on the arbitrary information; generating a third identifier based on the plurality of second identifiers; generating a first node based on the first identifier, and generating a second node based on the third identifier; generating a third node based on the access IP address; and connecting the first node, the second node, and the third node to generate an identity map for automatically detecting the abnormal transaction.

Abstract: The present invention relates to a method and system for tracking abnormal transactions in e-commerce, and an object of the present invention is to track abnormal transactions by analyzing complex characteristic data of product information uploaded to an e-commerce platform. In order to achieve this object, a method for detecting an abnormal transaction in an electronic device according to the present invention includes: step a of generating an identity map based on first transaction information previously stored in an e-commerce server; step b of collecting second transaction information newly uploaded to the e-commerce server; step c of extracting a first identifier and second identifiers included in the second transaction information and generating a third identifier by combining the plurality of second identifiers; and step d of determining whether the second transaction information is an abnormal transaction by searching the identity map for the first identifier and the third identifier.

Abstract: Disclosed are a method and an apparatus for generating a tactile sensation. The method of generating the tactile sensation according to an embodiment of the present disclosure may include: determining a tactile sensation information; generating wave signals associated with each tactile sensation information; generating ultrasonic driving signals in which phases and output timings of the wave signals are adjusted based on frequencies and a number of the wave signals; and generating the tactile sensation associated with the ultrasonic driving signals.

Abstract: Disclosed are a method and an apparatus for generating a tactile sensation. The method of generating the tactile sensation according to an embodiment of the present disclosure may include: determining a tactile sensation information; generating wave signals associated with each tactile sensation information; generating ultrasonic driving signals in which phases and output timings of the wave signals are adjusted based on frequencies and a number of the wave signals; and generating the tactile sensation associated with the ultrasonic driving signals.

Abstract: A method and apparatus for generating a haptic signal with auditory saliency estimation from an audio signal is disclosed. The method includes detecting audio characteristic information of a bass component and audio characteristic information of a treble component from a received audio signal, estimating auditory saliency with respect to the audio signal based on the two types of audio characteristic information, and calculating a tactile signal based on the auditory saliency.

Abstract: A method and apparatus for generating a haptic signal with auditory saliency estimation from an audio signal is disclosed. The method includes detecting audio characteristic information of a bass component and audio characteristic information of a treble component from a received audio signal, estimating auditory saliency with respect to the audio signal based on the two types of audio characteristic information, and calculating a tactile signal based on the auditory saliency.

Abstract: An optical recording/reproducing apparatus includes an optical pickup and a signal processor. The optical pickup includes an optical splitting device which splits light emitted from a first light source into a main light beam and sub-light beams which are symmetrical with respect to the main light beam and irradiates the split light beams on a recording medium, and a light detection device which receives the main light beam and the sub-light beams reflected by the recording medium, so as to detect a tracking error signal in a three-beam method and one of a push-pull method and an improved push-pull method.

Abstract: A method of controlling a side push-pull (SPP) balance in a dual push-pull (DPP) type tracking servo employing both a main push-pull (MPP) balance and the SPP balance includes rotating a disc without performing a tracking servo, periodically shifting a pickup from a track center to the right and left by a first distance, obtaining an SPP signal and low-pass filtering the SPP signal to obtain a DC component, and adjusting an offset of the SPP signal so that the DC component of the SPP signal is 0. Since the pickup is forcibly and periodically shifted from the track center to the right and left by the predetermined distance during an SPP balance control, the SPP balance control can be effectively performed even on a disc having little eccentricity.

Abstract: The present invention relates to a can opening device for allowing beverage or the like contained within a can to easily flow out. The can opening device of the present invention comprising a pair of opening portions defined by incision lines at positions spaced apart from each other at a predetermined interval on a top surface of the can filled with contents; an opening member including a pair of pressing portions for pressing the pair of opening portions, respectively, and a grip integrally formed with the pressing portions so as to extend in a direction opposite to the pressing portions; and a pair of lever fulcrums which fix the opening member to the top surface and are disposed close to the pressing portions so that the pressing portions press down the opening portions to be spaced apart from the top surface when the grip is pulled up. It is most preferable that the pair of opening portions be formed at marginal positions symmetric to each other on the top surface.

Abstract: An optical recording/reproducing apparatus includes an optical pickup and a signal processor. The optical pickup includes an optical splitting device which splits light emitted from a first light source into a main light beam and sub-light beams which are symmetrical with respect to the main light beam and irradiates the split light beams on a recording medium, and a light detection device which receives the main light beam and the sub-light beams reflected by the recording medium, so as to detect a tracking error signal in a three-beam method and one of a push-pull method and an improved push-pull method.

Abstract: An optical recording and reproducing apparatus for adjusting a tilt of an optical pickup in accordance with an amount of jitter of a reproduction signal, a tilt adjusting method therefor, and a recording control method. The optical recording and reproducing apparatus includes an optical pickup having an object lens, a tilt adjusting unit for adjusting a tilt angle of the object lens, a jitter detecting unit for detecting an amount of jitter of a reproducing signal generated by the optical pickup from a disk, and a tilt controlling unit for minimizing the amount of jitter by feeding the amount of jitter detected by the jitter detecting unit back to the tilt adjusting unit. According to the optical recording and reproducing apparatus, there is no need for a space in which a displacement sensor detecting the tilt angle of the optical pickup faces the disk.

Abstract: A digital versatile disc (DVD) system compatible with a compact disc (CD), a single-layered DVD and a multi-layered DVD having respectively different structures. The DVD system discriminates a type of a disc loaded on a turntable according to the time and number represented by reflection characteristic curves of a focus error signal detected during performing an initial focus search operation for the disc. The DVD system calculates the size of a waveform of the focus error signal having a reflection characteristic curve obtained from a reflection layer of the disc in a focus-up section, and determines the disc as a multi-layered DVD having two reflection layers when two reflection characteristic curves exist and have a magnitude which is between a first reference value and a second reference value.

Abstract: A digital versatile disc (DVD) system compatible with a compact disc (CD), a single-layered DVD and a multi-layered DVD having respectively different structures. The DVD system discriminates a type of a disc loaded on a turntable according to the number of detections and magnitudes represented by reflection characteristic curves of a focus error signal detected during performing an initial focus search operation for the disc. In case the disc is a compact disc (CD) of 1.2 mm thickness, a focus error signal detected during performing a focus search of the disc is indicated as a reflection characteristic curve of a level between predetermined two reference values. In case of a DVD of 0.6 mm thickness, a single-layered structure is indicated as a reflection characteristic curve having a larger level than the two reference values, and a multi-layered structure is indicated as two reflection characteristic curves having a level between the two reference values, respectively.

Abstract: A method for recording and reproducing a multi-session compact disc (CD) which allots a total TOC (TTOC) information storage area, including position information of respective sessions, to a specific area of the CD which enables high-speed access to data recorded on the CD. The disc recorded according to a multi-session mode recording operation includes a PMA area, a plurality of sessions respectively consisting of a lead-in area (LIN), a program area (PGM) and a lead-out area (LOT), and a total TOC area TTOC at the outermost circumferential area of the disc. A total TOC information storage area is allotted to the outermost circumferential area of the disc and the TOCs of respective sessions are recorded in the total TOC TTOC information storage area when recording is finished. High speed access to data recorded on the disc is performed by reading out position information from the total TOC area of the respective sessions.