Abstract: Embodiments of the present invention provide a method, program, and apparatus that may identify a device by using a virtual code generated based on a unique value of a chip inside a device without a separate procedure for identifying the device. Furthermore, embodiments of the present invention provide a method, program, and apparatus that may generate a virtual code, which is not matched with any other code, whenever a code for identifying a device is requested. Moreover, embodiments of the present invention provide a method, program, and apparatus for identifying a device that may add and use only an algorithm without changing a conventional process.

Abstract: A device-to-device authentication method based on a virtual authentication code is provided. The method includes transmitting a first code, receiving a second code reflecting an authentication result for the first code from a verification device, wherein the second code includes a hash value and role information for the client device generated by the verification device based on the first code, generating a third code that is the virtual authentication code, based on the first code and the second code; and transmitting the third code to at least one second device related to the role information.

Abstract: The present invention relates to a virtual token-based settlement providing system, a virtual token generation apparatus, a virtual token verification server, a virtual token-based settlement providing method, and a virtual token-based settlement providing program. The present invention comprises: a step for receiving a virtual token provided by a virtual token generation means, by a virtual token verification means; a step for extracting multiple detailed codes included in the virtual token by the virtual token verification means; a step for searching for a storage location of an actual card number on the basis of the multiple detailed codes by the virtual token verification means; and a step for transmitting the searched actual card number to a payment settlement service server or a financial company server.

Abstract: The present invention provides a method, program, server, and wearable device that may generate a virtual code, which is not matched with any other code, whenever a payment is requested. Furthermore, the present invention provides a method, program, server, and wearable device that may conveniently add a device while security is maintained, when a user wants to add a device capable of being used as a payment means. Moreover, the present invention provides a method, program, server, and wearable device that may add and use only an algorithm without changing a conventional process, and may provide a wearable device-based financial transaction.

Abstract: A handy-stick type vacuum cleaner is disclosed. The disclosed vacuum cleaner can comprise: a first part including a dust collection unit; a second part including a suction motor and a handle; a third part for connecting the first and second parts such that the first and second parts rotate with each other; and a mode setting unit disposed inside the second part so as to selectively lock and unlock the third part, thereby setting a rotating mode enabling the first and second parts to rotate with each other and a fixing mode disabling the rotation thereof.

Abstract: A method and system for user authentication by using an authentication virtual code are provided. A user authentication method using an authentication virtual code includes receiving, by a server, the authentication virtual code, searching, by the server, for an authentication card storage location, at which the authentication card is registered, in a storage location search algorithm based on the authentication virtual code, identifying, by the server, a user by extracting user information stored after being matched with the found authentication card storage location, verifying, by the server, an authentication virtual code based on a time point at which the authentication virtual code is received, and approving, by the server, user authentication.

Abstract: Provided is a method and system for verifying a virtual code based on a sphere. A method for verifying a virtual code based on a sphere includes: a virtual code reception operation of receiving, by a virtual code verifying means, a virtual code from a virtual code generating means, wherein the virtual code includes a fixed code and a plurality of detailed codes; a storage location search algorithm selection operation of determining, by the virtual code verifying means, a group, to which the virtual code generating means belongs, through the fixed code and selecting a storage location search algorithm for the group; a detailed code extraction operation of extracting, by the virtual code verifying means, the plurality of detailed codes included in the virtual code.

Abstract: The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum conent in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.

Abstract: Embodiments of the inventive concept described herein relate to a virtual card number-based financial transaction apparatus, a virtual card number-based financial transaction providing method, and a virtual card number-based financial transaction providing program, and more particularly, relate to an apparatus, method, and program that may provide a user with an electronic wallet service in an environment where an infrastructure of a financial transaction service is not established.

Abstract: Disclosed are a method, a program, and a system for providing a virtual corporate card-based financial transaction. The virtual corporate card-based financial transaction providing method performed by a payment server may include setting a virtual corporate card number generation condition for a manager application, wherein the manager application is installed in a user terminal of a corporate card manager, and generates a virtual corporate card number used to search for an actual corporate card number, obtaining a first virtual corporate card number issued to a first employee by the manager application, wherein the first virtual corporate card number is generated by the manager application at a point in time when the first employee makes a request for the virtual corporate card number, and making a payment with the actual corporate card number found based on the first virtual corporate card number.

Abstract: Disclosed is a vacuum cleaner having a structure for preventing foreign matter from entering between a drum brush and a bearing. A vacuum cleaner includes a suction portion formed with a suction port through which air and foreign matter are sucked. The suction portion includes a housing and a drum brush rotatably provided in the housing. The drum brush includes a rotating drum rotating by receiving a driving force and a brush mounted on the rotating drum. The housing is provided with an annular blocking rib, and the brush located at one end of the drum brush is configured to be accommodated in the blocking rib.

Abstract: A multi-modal emotion recognition system is disclosed. The system includes a data input unit for receiving video data and voice data of a user, a data pre-processing unit including a voice pre-processing unit for generating voice feature data from the voice data and a video pre-processing unit for generating one or more face feature data from the video data, a preliminary inference unit for generating situation determination data as to whether or not the user's situation changes according to a temporal sequence based on the video data. The system further comprises a main inference unit for generating at least one sub feature map based on the voice feature data or the face feature data, and inferring the user's emotion state based on the sub feature map and the situation determination data.

Abstract: A system, a method, and a program for providing a virtual code, a virtual code generating device, and a virtual code verifying device are provided. The method includes receiving, by a virtual code verifying means, a virtual code from a virtual code generating means, extracting, by the virtual code verifying means, a plurality of detailed codes included in the virtual code, and searching for, by the virtual code verifying means, a storage location of a real code based on the plurality of detailed codes.

Abstract: An electrical circuit device for performing a test by using a code combination. The electrical circuit device includes a first circuitry that includes magnetic cells or a printed circuit board (PCB) including an integrated circuit (IC) chip, and a second circuitry that receives, from the first circuitry, a signal including a temporal card number code, extracts a plurality of detailed codes included in the received card number code, searches a storage location of a real card number code based on the extracted plurality of detailed codes, and testing whether the real card number code of the searched storage location is correct or not.

Abstract: Disclosed herein is a cleaner with improved cleaning efficiency. A cleaner includes a main body having a dust collecting unit and a suction head including a head cover, a base plate having a suction port to suck in foreign substances on a surface to be cleaned and coupled to the head cover, and a brush rotatably provided between the head cover and the base plate, wherein the base plate includes a first inclined portion slantly extending from a front end of the suction port with respect to the surface to be cleaned, and a second inclined portion slantly extending from a rear end of the suction port with respect to the surface to be cleaned, and integrally formed with the first inclined portion.

Abstract: Disclosed are a smart card for generating and providing a virtual code, and method and program therefor.

Abstract: A system, a method, and a program for providing a virtual code, a virtual code generating device, and a virtual code verifying device are provided. The method includes receiving, by a virtual code verifying means, a virtual code from a virtual code generating means, extracting, by the virtual code verifying means, a plurality of detailed codes included in the virtual code, and searching for, by the virtual code verifying means, a storage location of a real code based on the plurality of detailed codes.

Abstract: A multi-modal emotion recognition system is disclosed. The system includes a data input unit for receiving video data and voice data of a user, a data pre-processing unit including a voice pre-processing unit for generating voice feature data from the voice data and a video pre-processing unit for generating one or more face feature data from the video data, a preliminary inference unit for generating situation determination data as to whether or not the user's situation changes according to a temporal sequence based on the video data. The system further comprises a main inference unit for generating at least one sub feature map based on the voice feature data or the face feature data, and inferring the user's emotion state based on the sub feature map and the situation determination data.