摘要:
A global positioning system (GPS) transmitter includes: an interface unit configured to receive user additional information from an additional information providing device; a location information providing unit configured to manage preset location information or location information set by a user; and a transmitting unit configured to generate a GPS-tag frame by combining the user additional information and the location information from the location information providing unit based on a plurality of pseudo random noise (PRN) codes, and transmit the generated GPS-tag frame to a service area.
摘要:
The present invention relates to an electronic surveillance method and system in a wideband wireless access system. If a law enforcement agency system requests electronic surveillance relative to a specified object, an electronic surveillance system first performs an authentication process using a codebook to authorize the electronic surveillance request. As the result of the authentication process, if it is judged that the electronic surveillance request of the law enforcement agency system is legal, the electronic surveillance system issues an encryption key required for encrypting communication contents with a law enforcement agency and electronic surveillance information. Thereafter, communication and message transmission/reception between the electronic surveillance system and the law enforcement agency system are encrypted and decoded using the encryption key. Accordingly, an illegal electronic surveillance request by an unauthorized user can be blocked, and an encryption key is issued to only an authorized user, such that the authorized user is authorized to access electronic surveillance information. With the authentication process and the encryption, the electronic surveillance information is protected doubly. Therefore, illegal access by an unauthorized user can be prevented.
摘要:
An apparatus and method for continuously manufacturing metal filaments in mass production. In accordance with the present invention, molten metal is hung in a state freely depending from the tip of a metal bar by its surface tension without using any vessel. The metal filament manufacturing apparatus includes an induction coil upwardly bent in the form of a nose shape at regions thereof where metal filaments are discharged while being soared up, respectively, so as to prevent the molten metal of each of the metal bars from being affected by the induction coil during soaring of the metal filaments. The apparatus also includes wiping assembly for removing residual metal materials left on a spinning disk.
摘要:
A method of reliable radio communication network duplication for a high speed train and a radio communication-based high speed train control system are provided. For the construction of radio communication network duplication of a high speed train control system, radio communication networks can be alternately disposed so that handover delay and disconnection at the interface between communication cells can be prevented during the handover at the same time.
摘要:
The present invention relates to a data processing method and system for checking an interactive communication sequence (ICS) relating to a plurality of users in a communication record by using a variable time window, and checking an interactive communication sequence pattern (ICSP) that is a frequently generated interactive communication sequence from among the checked interactive communication sequences. The data processing method includes: (a) storing an inverse pair in a communication record in an interactive communication sequence set or a candidate set that is a set of inverse pairs that can be part of the interactive communication sequence; (b) generating an interactive communication sequence having a length other than 1 by combining interactive communication sequences included in the interactive communication sequence set; and (c) generating an interactive communication sequence having a length other than 1 by combining the inverse pair included in the candidate set and one of the interactive communication sequence included in the interactive communication sequence set of (a) and the interactive communication sequence generated in (b).
摘要:
The present invention relates to a mobile advertising method that performs mobile advertisement using a deep-packet inspection performed in a wireless Internet system and location information. An exemplary embodiment of the present invention includes grasping a purchasing tendency of a subscriber using deep packet inspection of an electronic surveillance system; and providing advertisement for desired goods to the subscriber by connecting the grasped purchasing tendency of the subscriber with a location-based service (LBS). Accordingly, the present invention can contribute to an increase in sales profits of the service provider to reduce the resistance and burden for the installation of the electronic surveillance system, and maximize the advertising effect of the advertiser. Further, the subscriber can receive required information on the basis of the current location.
摘要:
The present invention relates to a harmonic-noise speech coder and coding algorithm of the mixed signal of voiced/unvoiced sound using harmonic model. The harmonic-noise speech coder comprises a noise spectral estimating means for coding the noise component by predicting the spectral by LPC analysis method after separating the noise, which is unvoiced sound component from the inputted LPC residual signal using cepstrum. And more improved speech quality can be obtained by analyzing noise effectively using the noise spectral model predicted through cepstrum-LPC analysis method of the mixed signal of voiced/unvoiced sound to the existing harmonic model and then coding the signal.
摘要:
A method of manufacturing a metal foam stack is provided. According to the present invention, the method includes: a metal foam sheet preparing step of preparing a plurality of metal foam sheets having a predetermined size and shape; a slurry application step of applying a slurry on a surface of the metal foam sheet; a metal foam stack forming step of forming the metal foam stack by stacking the metal foam sheets in a block form; a pressing force application step of applying pressing force having a predetermined magnitude to the metal foam stack; a pressing force removing step of removing pressing force applied to the metal foam stack after the pressing force application step is performed; and a heat treatment step of performing heat treatment of the metal foam stack to strongly attach the metal foam sheets to each other after pressing force applied to the metal foam stack is removed in the pressing force removing step.
摘要:
The present invention relates to a data processing method and system for checking an interactive communication sequence (ICS) relating to a plurality of users in a communication record by using a variable time window, and checking an interactive communication sequence pattern (ICSP) that is a frequently generated interactive communication sequence from among the checked interactive communication sequences. The data processing method includes: (a) storing an inverse pair in a communication record in an interactive communication sequence set or a candidate set that is a set of inverse pairs that can be part of the interactive communication sequence; (b) generating an interactive communication sequence having a length other than 1 by combining interactive communication sequences included in the interactive communication sequence set; and (c) generating an interactive communication sequence having a length other than 1 by combining the inverse pair included in the candidate set and one of the interactive communication sequence included in the interactive communication sequence set of (a) and the interactive communication sequence generated in (b).
摘要:
The present invention relates to a deep packet inspection method and device of a wireless communication system. The deep packet inspection method includes: receiving a first deep packet inspection result for a packet of a terminal from a first subnet before a handover when the handover occurs; receiving a second deep packet inspection result for the packet of the terminal from a second subnet after the handover; and coordinating the first deep packet inspection result and the second deep packet inspection result when the handover occurs.