| Patent application number | Description | Published |
|---|
| 20100030540 | SYSTEM AND METHOD FOR RECONSTRUCTING TRAFFIC ACCIDENT - Provided is a system and method for automatically reconstructing a traffic accident. The accident reconstructing system includes a data collecting unit, a geographical data providing unit, and an accident analyzing unit. The data collecting unit collects/transmits accident-related data according to the occurrence of a traffic accident. The geographical data providing unit transmits the geographical data of the neighborhood of the accident site. The accident analyzing unit reconstructs the traffic accident virtually on the basis of the data outputted from the data collecting unit and the geographical data providing unit. | 02-04-2010 |
| 20100098048 | METHOD FOR HYBRID MEDIUM ACCESS CONTROL FOR VEHICLE COMMUNICATION - A method for hybrid media access control for vehicle communication is provided. The method divides a radio channel into time slots, which are predetermined time units, and sets terminals as owners or non-owners for the divided time slots to be able to access the channel. Accordingly, it is possible to reduce the probability of contention by distributed access to the slots and provide a MAC protocol having excellent performance. | 04-22-2010 |
| 20100158164 | APPARATUS AND METHOD FOR TIME SYNCHRONIZATION AND RECEPTION APPARATUS OF OFDM SYSTEM - An apparatus for time synchronization of an orthogonal frequency division multiplexing (OFDM) system oversamples a received signal using a master clock having a frequency at least four times higher than a minimum sampling frequency in a transmission apparatus, sets one of a plurality of oversampled signals to an on-time signal, and shifts each of the remaining oversampled signals by a predetermined time on the basis of the on-time signal. The apparatus for time synchronization calculates a correlation value by correlating each of the shifted signals and the on-time signal with a previously known signal, detects a maximum energy value among the calculated correlation values, and detects a start point of a frame by comparing the maximum energy value with a predetermined threshold value. | 06-24-2010 |
| 20100173603 | METHOD AND SYSTEM FOR TRANSMITTING AND RECEIVING WARNING MESSAGE - Provided are a method and a system for transmitting and receiving a warning message that rapidly inform an adjacent hop of a dangerous situation that occurs on a road. The method for transmitting the warning message includes selecting one or more relay vehicles by using distances between vehicles and state information of the vehicles when the dangerous situation occurs on a road or outside, and increasing a warning message sequence number and generating and transmitting a warning message containing an identifier of the relay vehicle and a retransmission time. | 07-08-2010 |
| 20100184369 | COOPERATIVE COMMUNICATION METHOD FOR VEHICULAR COMMUNICATION - A cooperative communication method for vehicular communication is provided. The method in which when one vehicle transmits a signal to another vehicle, a signal of a transmission vehicle passes through a roadside device or a plurality of vehicles and thereafter signals having a plurality of paths are transmitted to a reception vehicle, and the reception vehicle combines and demodulates the signals received through the plurality of paths. | 07-22-2010 |
| 20110018732 | DEVICE AND METHOD FOR COLLECTING INFORMATION RELATED TO INFRASTRUCTURE, AND POSITIONING METHOD AND SYSTEM USING THE SAME - An infrastructure information collecting device collects measurement information including location information regarding a plurality of wireless access devices disposed in an indoor space based on an indoor map, and a positioning system generates information regarding a wireless communication infrastructure of the corresponding indoor space based on the thusly collected measurement information. The positioning system then provides the generated wireless communication infrastructure information to a terminal of which location is desired to be measured, and then the terminal measures its location based on the wireless communication infrastructure information and signals received from nearby wireless access devices. | 01-27-2011 |
| 20110102180 | APPARATUS AND METHOD FOR ESTIMATING TAG LOCATION - A first tag that is located in a communication coverage area among a plurality of tags is selected as a base tag in order to estimate tag location in an apparatus for estimating tag location that communicates with a plurality of tags. A second tag whose location is estimated among the plurality of tags is searched. First distance information of the second tag is estimated by performing a ranging procedure of the second tag. The second distance information estimated between the first tag and the second tag is received from the first tag, and the location information of the second tag is estimated by using the first distance information and the second distance information. | 05-05-2011 |
| 20110144858 | VEHICLE GATEWAY, AND APPARATUS AND METHOD FOR VEHICLE NETWORK INTERFACE - Provide are a vehicle gateway, and an apparatus and a method for vehicle network interface. The vehicle gateway includes a first interface connected to each unit of a vehicle network, a second interface connected to one or more access devices acquiring vehicle information from the vehicle network, and a packet processor connecting the first interface to the second interface, and determining a communication system and a communication path to each of the access devices and a process order of the vehicle information acquisition. | 06-16-2011 |
| 20110153652 | METHOD FOR TRANSMITTING VEHICLE INFORMATION - A method for a vehicle information collecting device installed in a vehicle to transmit vehicle information includes: generating a vehicle information identifier list including a plurality of vehicle information and a plurality of vehicle information identifiers respectively mapped on the plurality of vehicle information; transmitting the vehicle information identifier list to a terminal; receiving a request for transmitting vehicle information corresponding to at least one vehicle information identifier included the vehicle information identifier list from the terminal; and transmitting vehicle information corresponding to the at least one vehicle information identifier to the terminal based on the vehicle information identifier list. | 06-23-2011 |
