公开(公告)号：US08374148B2

公开(公告)日：2013-02-12

申请号：US10705205

申请日：2003-11-12

申请人： Hyong-uk Choi ,  Jun-hwan Kim

发明人： Hyong-uk Choi ,  Jun-hwan Kim

IPC分类号： H04W4/00

CPC分类号： H04W36/0055 ,  H04W36/02 ,  H04W84/12 ,  H04W92/20

摘要： A handoff method for a mobile station in a wireless local area network, the handoff method includes outputting a handoff alert message to a present access point, receiving a response message from the present access point, the response message including channel information on access point in an extended service set, and scanning channels by using the channel information to select a new access point.

摘要翻译： 一种用于无线局域网中的移动台的切换方法，所述切换方法包括向当前接入点输出切换警报消息，从所述接入点接收响应消息，所述响应消息包括关于接入点的信道信息 扩展服务集和扫描频道通过使用频道信息来选择新的接入点。

公开(公告)号：US20070040742A1

公开(公告)日：2007-02-22

申请号：US11507566

申请日：2006-08-22

申请人： Hyong-uk Choi

发明人： Hyong-uk Choi

IPC分类号： G01S3/02

CPC分类号： G01S5/0289 ,  G01S19/48

摘要： A system for providing position information by using a wireless personal area network (WPAN), and a method of acquiring the position information of a mobile device thereof where the system includes: a first node including referenced position information; and a plurality of second nodes calculating their respective position information based on the reference position information of the first node, wherein the mobile device calculates its position information by using the reference position information received from the first node and/or one or more of the respective position information of the second nodes. According to the system and method, at an indoor place where a global positioning system (GPS) signal is weak or absent, the GPS position information can be acquired through the position information providing system using a low-price wireless LAN communication network.

摘要翻译： 一种用于通过使用无线个人区域网络（WPAN）提供位置信息的系统，以及一种获取所述系统的移动设备的位置信息的方法，所述系统包括：包括参考位置信息的第一节点; 以及多个第二节点，基于所述第一节点的参考位置信息来计算其各自的位置信息，其中，所述移动设备通过使用从所述第一节点接收的参考位置信息和/或所述第一节点中的一个或多个来计算其位置信息 第二节点的位置信息。 根据该系统和方法，在全球定位系统（GPS）信号弱或不存在的室内场所，可以通过使用低价无线LAN通信网络的位置信息提供系统获取GPS位置信息。

公开(公告)号：US20060023713A1

公开(公告)日：2006-02-02

申请号：US11179629

申请日：2005-07-13

申请人： Hyun-seok Choi ,  Jun-hwan Kim ,  Hyong-uk Choi ,  Yong-jun Lim

发明人： Hyun-seok Choi ,  Jun-hwan Kim ,  Hyong-uk Choi ,  Yong-jun Lim

IPC分类号： H04L12/56

CPC分类号： H04L1/1838 ,  H04L1/0001 ,  H04L1/1832 ,  H04W84/12

摘要： Provided are a method of controlling frame transmission in a wireless local area network (WLAN) and an apparatus using the same. A first retransmission control method includes: comparing the number of errors in a frame received from a server with a predetermined threshold; and adaptively not allowing retransmission of the frame on the basis of the comparison result. Therefore, optimal pictures can be provided without regard to a state of a WLAN environment by adaptively allowing retransmission frames in which errors are detected.

摘要翻译： 提供了一种控制无线局域网（WLAN）中的帧传输的方法以及使用该方法的装置。 第一重传控制方法包括：将从服务器接收的帧中的错误数与预定阈值进行比较; 并且基于比较结果自适应地不允许帧的重传。 因此，可以通过自适应地允许检测到错误的重发帧，而不考虑WLAN环境的状态来提供最佳图像。

公开(公告)号：US08504057B2

公开(公告)日：2013-08-06

申请号：US11189061

申请日：2005-07-26

申请人： Yun-hwa Choi ,  Hyong-uk Choi

发明人： Yun-hwa Choi ,  Hyong-uk Choi

IPC分类号： H04W24/00 ,  H04W4/00 ,  H04L12/28 ,  H04L12/66

CPC分类号： H04W64/00 ,  H04B7/2612

摘要： A location tracking method in a coordinator-based wireless network is provided. The location tracking method in a coordinator-based wireless network includes transmitting a first frame including its own identifier and time information to the wireless network by a device associated with the wireless network in order to disclose its location information; and receiving a second frame including the location information of the device transmitted from the wireless network by the device, as a response to the first frame.

公开(公告)号：US20060018295A1

公开(公告)日：2006-01-26

申请号：US11189061

申请日：2005-07-26

申请人： Yun-hwa Choi ,  Hyong-uk Choi

发明人： Yun-hwa Choi ,  Hyong-uk Choi

IPC分类号： H04Q7/20

CPC分类号： H04W64/00 ,  H04B7/2612

摘要： A location tracking method in a coordinator-based wireless network is provided. The location tracking method in a coordinator-based wireless network includes transmitting a first frame including its own identifier and time information to the wireless network by a device associated with the wireless network in order to disclose its location information; and receiving a second frame including the location information of the device transmitted from the wireless network by the device, as a response to the first frame.

公开(公告)号：US08538453B2

公开(公告)日：2013-09-17

申请号：US12751131

申请日：2010-03-31

申请人： Yun-hwa Choi ,  Hyong-uk Choi

发明人： Yun-hwa Choi ,  Hyong-uk Choi

IPC分类号： H04W24/00 ,  H04W4/00 ,  H04L12/28 ,  H04L12/66

CPC分类号： H04W64/00 ,  H04B7/2612

摘要： A location tracking method in a coordinator-based wireless network is provided. The location tracking method in a coordinator-based wireless network includes transmitting a first frame including its own identifier and time information to the wireless network by a device associated with the wireless network in order to disclose its location information; and receiving a second frame including the location information of the device transmitted from the wireless network by the device, as a response to the first frame.

摘要翻译： 提供了一种基于协调器的无线网络中的位置跟踪方法。 基于协调器的无线网络中的位置跟踪方法包括：通过与无线网络相关联的设备向无线网络发送包括其自己的标识符和时间信息的第一帧，以便公开其位置信息; 以及作为对第一帧的响应，接收包括由设备从无线网络发送的设备的位置信息的第二帧。

公开(公告)号：US20060256212A1

公开(公告)日：2006-11-16

申请号：US11342621

申请日：2006-01-31

申请人： Hyong-uk Choi

发明人： Hyong-uk Choi

IPC分类号： H04N5/76

CPC分类号： H04N1/32128 ,  H04N2201/0084 ,  H04N2201/3204 ,  H04N2201/3214 ,  H04N2201/3215 ,  H04N2201/3226 ,  H04N2201/3229 ,  H04N2201/3243 ,  H04N2201/3252 ,  H04N2201/3253 ,  H04N2201/3266

摘要： An image photographing apparatus using location information, a method of storing data therefor, and a navigation apparatus using the location information included in the image data, are provided. The image photographing apparatus includes a filming unit for photographing an object and providing the image data, a location information providing unit for providing location information of the place where the image data is taken, a control unit for adding location information to an area of the image data, and a storage unit for storing the image data according to the control of the control unit. According to the apparatus and method, a user is required to perform less searching by creating and using the filenames including the location information when the image data is retrieved, thereby saving time, and the image data can be arranged and stored as the user desires, so that the image data can be managed efficiently.

摘要翻译： 提供使用位置信息的图像拍摄装置，存储数据的方法和使用包括在图像数据中的位置信息的导航装置。 图像拍摄装置包括拍摄对象并提供图像数据的拍摄单元，用于提供拍摄图像数据的位置的位置信息的位置信息提供单元，用于将位置信息添加到图像区域的控制单元 数据和用于根据控制单元的控制存储图像数据的存储单元。 根据该装置和方法，需要用户通过在检索图像数据时创建和使用包括位置信息的文件名来执行较少的搜索，从而节省时间，并且可以按照用户期望来排列和存储图像数据， 使得可以有效地管理图像数据。

公开(公告)号：US20050013325A1

公开(公告)日：2005-01-20

申请号：US10893309

申请日：2004-07-19

申请人： Hyong-uk Choi ,  Jun-whan Kim

发明人： Hyong-uk Choi ,  Jun-whan Kim

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04J3/06

CPC分类号： H04L29/06027 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W74/08 ,  H04W88/08

摘要： A method for transmitting multimedia data in a wireless network using an access point, comprising receiving information on a data quantity from each of stations, and assigning and sending a waiting time to each of the stations based on the received information on the data quantity. Consistent with another aspect of the present invention, there is provided a method for transmitting multimedia data in a wireless network using an access point, comprising providing, by each of stations, information on data quantity to the access point, receiving a waiting time assigned by the access point based on the received information on the data quantity, and transferring, by each station, the data through contention in accordance with the assigned waiting time.

摘要翻译： 一种用于使用接入点在无线网络中传输多媒体数据的方法，包括从每个站接收关于数据量的信息，并且基于所接收的关于数据量的信息向每个站分配和发送等待时间。 根据本发明的另一方面，提供了一种用于使用接入点在无线网络中发送多媒体数据的方法，包括由每个站向接入点提供关于数据量的信息，接收由接入点分配的等待时间 基于接收到的关于数据量的信息的接入点，并且根据所分配的等待时间，通过争用由每个站传送数据。

公开(公告)号：US08897777B2

公开(公告)日：2014-11-25

申请号：US11328215

申请日：2006-01-10

申请人： Hyong-uk Choi

发明人： Hyong-uk Choi

IPC分类号： H04W36/00 ,  H04W36/32 ,  H04W84/12

CPC分类号： H04W36/0083 ,  H04W36/32 ,  H04W84/12

摘要： A fast hand-over method of a mobile device roaming in a wireless LAN environment includes: receiving GPS information; based on the received location information of the mobile device, searching one or more APs; by scanning the searched APs, detecting an AP to reassociate with; and reassociating with the detected AP. According to the method, when roaming in a wireless LAN environment, a mobile device calculates a moving path by using GPS information and then, by scanning only APs belonging to channels allocated to areas related to the moving direction, the mobile device can reduce a hand-over period, and as a result, a QoS guaranteed service can be provided continuously. Also, by using GPS information, the mobile device can selectively switch to an optimum network service in an area to which different network services are applied.

摘要翻译： 在无线LAN环境中漫游的移动设备的快速切换方法包括：接收GPS信息; 基于所接收的所述移动设备的位置信息，搜索一个或多个AP; 通过扫描所搜索的AP，检测AP重新关联; 并与检测到的AP重新联系。 根据该方法，当在无线LAN环境中漫游时，移动设备通过使用GPS信息来计算移动路径，然后通过仅扫描属于分配给与移动方向相关的区域的信道的AP，移动设备可以减少手 因此，可以连续提供QoS保证服务。 此外，通过使用GPS信息，移动设备可以选择性地切换到应用不同网络服务的区域中的最佳网络服务。

公开(公告)号：US20100283867A1

公开(公告)日：2010-11-11

申请号：US12805202

申请日：2010-07-19

申请人： Hyong-uk Choi

发明人： Hyong-uk Choi

IPC分类号： H04N5/76

CPC分类号： H04N1/32128 ,  H04N2201/0084 ,  H04N2201/3204 ,  H04N2201/3214 ,  H04N2201/3215 ,  H04N2201/3226 ,  H04N2201/3229 ,  H04N2201/3243 ,  H04N2201/3252 ,  H04N2201/3253 ,  H04N2201/3266

摘要： An image photographing apparatus using location information, a method of storing data therefor, and a navigation apparatus using the location information included in the image data, are provided. The image photographing apparatus includes a filming unit for photographing an object and providing the image data, a location information providing unit for providing location information of the place where the image data is taken, a control unit for adding location information to an area of the image data, and a storage unit for storing the image data according to the control of the control unit. According to the apparatus and method, a user is required to perform less searching by creating and using the filenames including the location information when the image data is retrieved, thereby saving time, and the image data can be arranged and stored as the user desires, so that the image data can be managed efficiently.

摘要翻译： 提供使用位置信息的图像拍摄装置，存储数据的方法和使用包括在图像数据中的位置信息的导航装置。 图像拍摄装置包括拍摄对象并提供图像数据的拍摄单元，用于提供拍摄图像数据的位置的位置信息的位置信息提供单元，用于将位置信息添加到图像区域的控制单元 数据和用于根据控制单元的控制存储图像数据的存储单元。 根据该装置和方法，需要用户通过在检索图像数据时创建和使用包括位置信息的文件名来执行较少的搜索，从而节省时间，并且可以按照用户期望来排列和存储图像数据， 使得可以有效地管理图像数据。