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公开(公告)号：US08170471B2
公开(公告)日：2012-05-01
申请号：US12631351
申请日：2009-12-04
申请人： Woong Cho , Hyun Seo Oh , Dong Yong Kwak
发明人： Woong Cho , Hyun Seo Oh , Dong Yong Kwak
IPC分类号： H04B7/15
CPC分类号： H04B7/15557 , H04B7/15592
摘要： 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.
摘要翻译： 提供了一种用于车辆通信的协作通信方法。 当一个车辆向另一车辆发送信号时，传输车辆的信号通过路侧设备或多个车辆，此后具有多个路径的信号被发送到接收车辆，并且接收车辆组合 并解调通过多个路径接收的信号。
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2.发明授权Apparatus and method for time synchronization and reception apparatus of OFDM system 有权OFDM系统的时间同步和接收装置的装置和方法公开(公告)号：US08270510B2
公开(公告)日：2012-09-18
申请号：US12643296
申请日：2009-12-21
申请人： Hyun Seo Oh , Hyun Kyun Choi , Sangin Kim , Daeki Hong , Dong Yong Kwak , Jong-Hyun Park
发明人： Hyun Seo Oh , Hyun Kyun Choi , Sangin Kim , Daeki Hong , Dong Yong Kwak , Jong-Hyun Park
IPC分类号： H04L27/28
CPC分类号： H04L27/2656 , H04L25/068 , H04L27/2675 , H04L27/2695
摘要： 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.
摘要翻译： 正交频分复用（OFDM）系统的时间同步的装置使用在发送装置中具有比最小采样频率高至少四倍的频率的主时钟对接收信号进行采样，将多个过采样信号中的一个设置为 导通时间信号，并且基于接通时间信号将每个剩余的过采样信号移位预定时间。 用于时间同步的装置通过将每个移位信号和接通时间信号与先前已知的信号相关来计算相关值，检测所计算的相关值中的最大能量值，并通过比较 具有预定阈值的最大能量值。
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公开(公告)号：US20100098048A1
公开(公告)日：2010-04-22
申请号：US12474963
申请日：2009-05-29
申请人： Moonsoo KANG , Sangwoo Lee , Jeonghoon Mo , Hyun Jeong Yun , Kyeong-Soo Han , Hyun Seo Oh , Dong Yong Kwak , Jeongseok Ha
发明人： Moonsoo KANG , Sangwoo Lee , Jeonghoon Mo , Hyun Jeong Yun , Kyeong-Soo Han , Hyun Seo Oh , Dong Yong Kwak , Jeongseok Ha
IPC分类号： H04J3/00 , H04L12/413
CPC分类号： H04L12/413
摘要： 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.
摘要翻译： 提供了一种用于车辆通信的混合媒体访问控制的方法。 该方法将无线电信道划分为预定时间单位的时隙，并将终端设置为分割时隙的所有者或非所有者以能够访问该信道。 因此，可以通过对时隙的分布式访问来降低竞争的概率，并提供具有优异性能的MAC协议。
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公开(公告)号：US20100173603A1
公开(公告)日：2010-07-08
申请号：US12617130
申请日：2009-11-12
申请人： Dong Yong Kwak , Hyun Seo Oh , Wan Sik Choi , Jong-Hyun Park
发明人： Dong Yong Kwak , Hyun Seo Oh , Wan Sik Choi , Jong-Hyun Park
IPC分类号： H04M11/04
CPC分类号： G08G1/164 , B60W30/0956 , B60W2550/408
摘要： 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.
摘要翻译： 提供了一种用于发送和接收警告消息的方法和系统，其迅速地通知在道路上发生的危险情况的相邻跳跃。 用于发送警告消息的方法包括：当道路或外部发生危险情况时，通过使用车辆之间的距离和车辆的状态信息来选择一个或多个中继车辆，并且增加警告消息序列号并生成并发送警告消息 包含中继车辆的标识符和重传时间。
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5.发明申请APPARATUS AND METHOD FOR TIME SYNCHRONIZATION AND RECEPTION APPARATUS OF OFDM SYSTEM 有权OFDM系统的时间同步和接收装置的装置和方法公开(公告)号：US20100158164A1
公开(公告)日：2010-06-24
申请号：US12643296
申请日：2009-12-21
申请人： Hyun Seo Oh , Hyun Kyun Choi , Sangin Kim , Daeki Hong , Dong Yong Kwak , Jong-Hyun Park
发明人： Hyun Seo Oh , Hyun Kyun Choi , Sangin Kim , Daeki Hong , Dong Yong Kwak , Jong-Hyun Park
CPC分类号： H04L27/2656 , H04L25/068 , H04L27/2675 , H04L27/2695
摘要： 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.
摘要翻译： 正交频分复用（OFDM）系统的时间同步的装置使用在发送装置中具有比最小采样频率高至少四倍的频率的主时钟对接收信号进行采样，将多个过采样信号中的一个设置为 导通时间信号，并且基于接通时间信号将每个剩余的过采样信号移位预定时间。 用于时间同步的装置通过将每个移位信号和接通时间信号与先前已知的信号相关来计算相关值，检测所计算的相关值中的最大能量值，并通过比较 具有预定阈值的最大能量值。
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公开(公告)号：US20110140778A1
公开(公告)日：2011-06-16
申请号：US12961539
申请日：2010-12-07
申请人： Woong CHO , Hyun Kyun Choi , Hyun Seo Oh
发明人： Woong CHO , Hyun Kyun Choi , Hyun Seo Oh
IPC分类号： H03G3/20
CPC分类号： H03G3/3078
摘要： An automatic gain control method of a receiving apparatus is provided. The automatic gain control method includes low-noise amplifying a signal using a first gain value, amplifying the low-noise amplified signal to a second gain value, determining the first gain value using a strength of the low-noise amplified signal, and determining the second gain value using the signal amplified to the second gain value. Accordingly, the reliability of the automatic gain control may be guaranteed.
摘要翻译： 提供了一种接收装置的自动增益控制方法。 自动增益控制方法包括使用第一增益值对信号进行低噪声放大，将低噪声放大信号放大到第二增益值，使用低噪声放大信号的强度来确定第一增益值，并且确定 使用被放大到第二增益值的信号的第二增益值。 因此，可以保证自动增益控制的可靠性。
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公开(公告)号：US08604967B2
公开(公告)日：2013-12-10
申请号：US12827174
申请日：2010-06-30
申请人： Hyun Seo Oh , Hyun Kyun Choi , Hyun Suk Kim , Jong-Hyun Park , Sung Won Sohn , Sangwoo Lee , Woong Cho
发明人： Hyun Seo Oh , Hyun Kyun Choi , Hyun Suk Kim , Jong-Hyun Park , Sung Won Sohn , Sangwoo Lee , Woong Cho
摘要： A safe driving providing system for supporting a safe driving of a vehicle includes: a radar for transmitting a signal of a predetermined frequency bandwidth to a plurality of vehicles, analyzing signals provided by the vehicles, calculating location information and distance information of the vehicles, and finding inter-vehicle distance information of the vehicles based on the location information and the distance information; and a controller for receiving operation speed information from a vehicle information terminal device installed in each vehicle, determining driving safety of the plurality of vehicles based on the received operation speed information and inter-vehicle distance information provided by the radar, and transmitting a warning message for safe driving to the vehicle information terminal device.
摘要翻译： 一种用于支持车辆安全驾驶的安全驾驶提供系统包括：用于向多个车辆发送预定频率带宽的信号的雷达，分析由车辆提供的信号，计算车辆的位置信息和距离信息，以及 基于位置信息和距离信息，找到车辆的车辆间距离信息; 以及控制器，用于从安装在每个车辆中的车辆信息终端装置接收操作速度信息，基于由雷达提供的接收到的操作速度信息和车间距离信息确定多个车辆的驾驶安全性，并且发送警告消息 用于安全驾驶到车辆信息终端装置。
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公开(公告)号：US20110080312A1
公开(公告)日：2011-04-07
申请号：US12827174
申请日：2010-06-30
申请人： Hyun Seo Oh , Hyun Kyun Choi , Hyun Suk Kim , Jong-Hyun Park , Sung Won Sohn , Sangwoo Lee , Woong Cho
发明人： Hyun Seo Oh , Hyun Kyun Choi , Hyun Suk Kim , Jong-Hyun Park , Sung Won Sohn , Sangwoo Lee , Woong Cho
摘要： A safe driving providing system for supporting a safe driving of a vehicle includes: a radar for transmitting a signal of a predetermined frequency bandwidth to a plurality of vehicles, analyzing signals provided by the vehicles, calculating location information and distance information of the vehicles, and finding inter-vehicle distance information of the vehicles based on the location information and the distance information; and a controller for receiving operation speed information from a vehicle information terminal device installed in each vehicle, determining driving safety of the plurality of vehicles based on the received operation speed information and inter-vehicle distance information provided by the radar, and transmitting a warning message for safe driving to the vehicle information terminal device.
摘要翻译： 一种用于支持车辆安全驾驶的安全驾驶提供系统包括：用于向多个车辆发送预定频率带宽的信号的雷达，分析由车辆提供的信号，计算车辆的位置信息和距离信息，以及 基于位置信息和距离信息，找到车辆的车辆间距离信息; 以及控制器，用于从安装在每个车辆中的车辆信息终端装置接收操作速度信息，基于由雷达提供的接收到的操作速度信息和车间距离信息确定多个车辆的驾驶安全性，并且发送警告消息 用于安全驾驶到车辆信息终端装置。
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9.发明授权公开(公告)号：US08675603B2
公开(公告)日：2014-03-18
申请号：US12984830
申请日：2011-01-05
申请人： Sangwoo Lee , Min Jung Kim , Woong Cho , Hyun Seo Oh
发明人： Sangwoo Lee , Min Jung Kim , Woong Cho , Hyun Seo Oh
IPC分类号： H04W4/00
CPC分类号： H04W36/08
摘要： When supporting the handover from first road side equipment of a plurality of sets of road side equipment and second road side equipment that is adjacent to the first road side equipment to a vehicle, the first road side equipment generates a first channel seizing signal that is longer than that of the second road side equipment in a control channel of an N-th sync interval. The second road side equipment generates a second channel seizing signal that is longer than that of the first road side equipment in a control channel of an (N+1)-th sync interval.
摘要翻译： 在从车辆的第一道路侧设备的多组路侧设备的第一路侧设备和第二道路侧设备向车辆支持切换时，第一道路侧设备生成更长的第一路段占用信号 比第N次同步间隔的控制信道中的第二路侧设备。 第二路侧设备在第（N + 1）同步间隔的控制信道中产生比第一路侧设备的长的第二信道占用信号。
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10.发明申请公开(公告)号：US20110292910A1
公开(公告)日：2011-12-01
申请号：US12984830
申请日：2011-01-05
申请人： Sangwoo LEE , Min Jung Kim , Woong Cho , Hyun Seo Oh
发明人： Sangwoo LEE , Min Jung Kim , Woong Cho , Hyun Seo Oh
IPC分类号： H04W4/00
CPC分类号： H04W36/08
摘要： When supporting the handover from first road side equipment of a plurality of sets of road side equipment and second road side equipment that is adjacent to the first road side equipment to a vehicle, the first road side equipment generates a first channel seizing signal that is longer than that of the second road side equipment in a control channel of an N-th sync interval. The second road side equipment generates a second channel seizing signal that is longer than that of the first road side equipment in a control channel of an (N+1)-th sync interval.
摘要翻译： 在从车辆的第一道路侧设备的多组路侧设备的第一路侧设备和第二道路侧设备向车辆支持切换时，第一道路侧设备生成更长的第一路段占用信号 比第N次同步间隔的控制信道中的第二路侧设备。 第二路侧设备在第（N + 1）同步间隔的控制信道中产生比第一路侧设备的长的第二信道占用信号。
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