公开(公告)号：US07738576B2

公开(公告)日：2010-06-15

申请号：US11494729

申请日：2006-07-28

申请人： Jae-hyon Kim ,  Young-hwan Kim ,  Seong-soo Lee ,  Joonhyuk Kang ,  Yungil Kim ,  Hyounkuk Kim ,  Hyoncheol Park ,  Jaeseung Son

发明人： Jae-hyon Kim ,  Young-hwan Kim ,  Seong-soo Lee ,  Joonhyuk Kang ,  Yungil Kim ,  Hyounkuk Kim ,  Hyoncheol Park ,  Jaeseung Son

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04B1/7176 ,  H04B1/71635 ,  H04B1/71637 ,  H04L27/001

摘要： A communication system which transmits and receives a communication signal having an intra-guard-interval (IGI) inserted is provided. The communication system includes a signal generator which is configured to generate a signal to carry data; and a signal output part which is configured to split a symbol period, which is a transmission unit of the communication signal into a plurality of sections, and to selectively insert the signal which is generated into the plurality of sections, and to output the communication signal.

摘要翻译： 提供发送和接收具有插入的保护间隔（IGI）的通信信号的通信系统。 通信系统包括：信号发生器，被配置为产生携带数据的信号; 以及信号输出部，其被配置为将作为通信信号的发送单元的符号周期分割成多个部分，并且选择性地将生成的信号插入到多个部分中，并输出通信信号 。

公开(公告)号：US20070133694A1

公开(公告)日：2007-06-14

申请号：US11494729

申请日：2006-07-28

申请人： Jae-hyon Kim ,  Young-hwan Kim ,  Seong-soo Lee ,  Joonhyuk Kang ,  Yungil Kim ,  Hyounkuk Kim ,  Hyoncheol Park ,  Jaeseung Son

发明人： Jae-hyon Kim ,  Young-hwan Kim ,  Seong-soo Lee ,  Joonhyuk Kang ,  Yungil Kim ,  Hyounkuk Kim ,  Hyoncheol Park ,  Jaeseung Son

IPC分类号： H04L27/00 ,  H03K9/00

CPC分类号： H04B1/7176 ,  H04B1/71635 ,  H04B1/71637 ,  H04L27/001

摘要： A communication system which transmits and receives a communication signal having an intra-guard-interval (IGI) inserted is provided. The communication system includes a signal generator which is configured to generate a signal to carry data; and a signal output part which is configured to split a symbol period, which is a transmission unit of the communication signal into a plurality of sections, and to selectively insert the signal which is generated into the plurality of sections, and to output the communication signal.

摘要翻译： 提供发送和接收具有插入的保护间隔（IGI）的通信信号的通信系统。 通信系统包括：信号发生器，被配置为产生携带数据的信号; 以及信号输出部，其被配置为将作为通信信号的发送单元的符号周期分割成多个部分，并且选择性地将生成的信号插入到多个部分中，并输出通信信号 。

公开(公告)号：US20060258298A1

公开(公告)日：2006-11-16

申请号：US11401416

申请日：2006-04-11

申请人： Jae-hyon Kim ,  Joonhyuk Kang ,  Young-hwan Kim ,  Yungil Kim ,  Hyounkuk Kim ,  Jaeseung Son ,  Hyuncheol Park

发明人： Jae-hyon Kim ,  Joonhyuk Kang ,  Young-hwan Kim ,  Yungil Kim ,  Hyounkuk Kim ,  Jaeseung Son ,  Hyuncheol Park

IPC分类号： H04B7/00 ,  H04B1/00

CPC分类号： H04B17/0085 ,  G01S13/76

摘要： A ranging system and ranging method are provided. The ranging system includes a transmission signal generator which generates a transmission signal, which is transmitted from a transmission device to a reception device; a correction signal generator which converts the transmission signal, which is processed in the reception device and re-input to the transmission device, into a correction signal; a reference signal generator which generates a reference signal, an overlap detector which detects an overlap region between the correction signal and the reference signal; a time calculator which calculates a transmission time of the transmission signal; and a distance calculator which calculates a distance between the devices using the transmission time. The method includes generating a transmission signal; transmitting the transmission signal to a reception device and receiving the signal back again; producing a correction signal; detecting an overlap region between the correction and reference signals; calculating a transmission time; and calculating a distance between the transmission and reception devices.

摘要翻译： 提供测距系统和测距方法。 测距系统包括发送信号发生器，其生成从发送装置发送到接收装置的发送信号; 校正信号发生器，其将在接收装置中处理并重新输入到发送装置的发送信号转换为校正信号; 生成参考信号的参考信号发生器，检测校正信号和参考信号之间的重叠区域的重叠检测器; 时间计算器，计算发送信号的发送时间; 以及距离计算器，其使用传输时间来计算设备之间的距离。 该方法包括生成发送信号; 将发送信号发送到接收装置并再次接收信号; 产生校正信号; 检测所述校正和参考信号之间的重叠区域; 计算传输时间; 并计算发送和接收设备之间的距离。

公开(公告)号：US07439904B2

公开(公告)日：2008-10-21

申请号：US11401416

申请日：2006-04-11

申请人： Jae-hyon Kim ,  Joonhyuk Kang ,  Young-hwan Kim ,  Yungil Kim ,  Hyounkuk Kim ,  Jaeseung Son ,  Hyuncheol Park

发明人： Jae-hyon Kim ,  Joonhyuk Kang ,  Young-hwan Kim ,  Yungil Kim ,  Hyounkuk Kim ,  Jaeseung Son ,  Hyuncheol Park

IPC分类号： G01S13/08 ,  G01S13/00

CPC分类号： H04B17/0085 ,  G01S13/76

摘要： A ranging system and ranging method are provided. The ranging system includes a transmission signal generator which generates a transmission signal, which is transmitted from a transmission device to a reception device; a correction signal generator which converts the transmission signal, which is processed in the reception device and re-input to the transmission device, into a correction signal; a reference signal generator which generates a reference signal, an overlap detector which detects an overlap region between the correction signal and the reference signal; a time calculator which calculates a transmission time of the transmission signal; and a distance calculator which calculates a distance between the devices using the transmission time. The method includes generating a transmission signal; transmitting the transmission signal to a reception device and receiving the signal back again; producing a correction signal; detecting an overlap region between the correction and reference signals; calculating a transmission time; and calculating a distance between the transmission and reception devices.

摘要翻译： 提供测距系统和测距方法。 测距系统包括发送信号发生器，其生成从发送装置发送到接收装置的发送信号; 校正信号发生器，其将在接收装置中处理并重新输入到发送装置的发送信号转换为校正信号; 生成参考信号的参考信号发生器，检测校正信号和参考信号之间的重叠区域的重叠检测器; 时间计算器，计算发送信号的发送时间; 以及距离计算器，其使用传输时间来计算设备之间的距离。 该方法包括生成发送信号; 将发送信号发送到接收装置并再次接收信号; 产生校正信号; 检测所述校正和参考信号之间的重叠区域; 计算传输时间; 并计算发送和接收设备之间的距离。

公开(公告)号：US08103002B2

公开(公告)日：2012-01-24

申请号：US11489458

申请日：2006-07-20

申请人： Jae-hyon Kim ,  Young-hwan Kim ,  Hyunkuk Kim ,  Hyuncheol Park ,  Seong-soo Lee ,  Jaeseung Son

发明人： Jae-hyon Kim ,  Young-hwan Kim ,  Hyunkuk Kim ,  Hyuncheol Park ,  Seong-soo Lee ,  Jaeseung Son

IPC分类号： H04L9/00

CPC分类号： H04L25/4902 ,  H04L27/001

摘要： A PPB-CM communication system and method. The PPB-CM communication system includes a transmitter which splits a symbol period, which is a transmission unit of a communication signal, into at least a pair of parts, inserts a data signal into one of the parts, and transmits a communication signal having the data signal inserted; and a receiver which receives the communication signal from the transmitter and determines bit information of the symbol period according to which part of the symbol period has the data signal inserted, as determined by comparison of energy levels of the parts. Accordingly, a separate threshold is not required to determine the data bit of the symbol period. Thus, the communication signal can be accurately determined. Also, the communication system can be simply implemented without need of a delay line.

摘要翻译： 一种PPB-CM通信系统及方法。 PPB-CM通信系统包括将作为通信信号的发送单元的符号周期分割成至少一对部分的发送器，将数据信号插入到该部分之一中，并发送具有 数据信号插入; 以及接收器，其从发送器接收通信信号，并且根据部件的能级的比较确定，根据符号周期的哪个部分具有插入的数据信号来确定符号周期的位信息。 因此，不需要单独的阈值来确定符号周期的数据位。 因此，可以准确地确定通信信号。 此外，通信系统可以简单地实现，而不需要延迟线。

公开(公告)号：US20070133801A1

公开(公告)日：2007-06-14

申请号：US11489458

申请日：2006-07-20

申请人： Jae-hyon Kim ,  Young-hwan Kim ,  Hyunkuk Kim ,  Hyuncheol Park ,  Seong-soo Lee ,  Jaeseung Son

发明人： Jae-hyon Kim ,  Young-hwan Kim ,  Hyunkuk Kim ,  Hyuncheol Park ,  Seong-soo Lee ,  Jaeseung Son

IPC分类号： H04L9/00

CPC分类号： H04L25/4902 ,  H04L27/001

摘要： A PPB-CM communication system and method. The PPB-CM communication system includes a transmitter which splits a symbol period, which is a transmission unit of a communication signal, into at least a pair of parts, inserts a data signal into one of the parts, and transmits a communication signal having the data signal inserted; and a receiver which receives the communication signal from the transmitter and determines bit information of the symbol period according to which part of the symbol period has the data signal inserted, as determined by comparison of energy levels of the parts. Accordingly, a separate threshold is not required to determine the data bit of the symbol period. Thus, the communication signal can be accurately determined. Also, the communication system can be simply implemented without need of a delay line.

摘要翻译： 一种PPB-CM通信系统及方法。 PPB-CM通信系统包括将作为通信信号的发送单元的符号周期分割成至少一对部分的发送器，将数据信号插入到该部分之一中，并发送具有 数据信号插入; 以及接收器，其从发送器接收通信信号，并且根据部件的能级的比较确定，根据符号周期的哪个部分具有插入的数据信号来确定符号周期的位信息。 因此，不需要单独的阈值来确定符号周期的数据位。 因此，可以准确地确定通信信号。 此外，通信系统可以简单地实现，而不需要延迟线。

公开(公告)号：US20120093517A1

公开(公告)日：2012-04-19

申请号：US13053665

申请日：2011-03-22

申请人： Sridhar Rajagopal ,  Doyoung Kim ,  Taehan Bae ,  Jaeseung Son

发明人： Sridhar Rajagopal ,  Doyoung Kim ,  Taehan Bae ,  Jaeseung Son

IPC分类号： H04B10/00

CPC分类号： H04B10/116

摘要： A method and apparatus for supporting mobility of VLC (visible light communication) devices in a VLC network. A method includes transmitting data to a VLC device at a first cell. The method also includes searching for a response from the VLC device at a second cell that is adjacent to the first cell. The method further includes receiving the response from the VLC device at the second cell. The method also includes determining a mobility of the VLC device based on a change in communication from the first cell to the second cell.

摘要翻译： 一种在VLC网络中支持VLC（可见光通信）设备的移动性的方法和装置。 一种方法包括在第一小区向VLC设备发送数据。 该方法还包括在与第一小区相邻的第二小区处搜索来自VLC设备的响应。 该方法还包括在第二小区处接收来自VLC设备的响应。 该方法还包括基于从第一小区到第二小区的通信变化来确定VLC设备的移动性。

公开(公告)号：US20110091220A1

公开(公告)日：2011-04-21

申请号：US12895225

申请日：2010-09-30

申请人： Sridhar Rajagopal ,  Farooq Khan ,  Ying Li ,  Jaeseung Son

发明人： Sridhar Rajagopal ,  Farooq Khan ,  Ying Li ,  Jaeseung Son

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： A method, apparatus, and a non-transitory computer readable storage medium for supporting visible light communication (VLC) exchanges bitmaps for capabilities field exchange in a media access control (MAC) layer during link establishment and association with other VLC-enabled devices. An aggregation bitmap is generated to indicate whether a visible light communication (VLC) transmitter of a first device uses at least one aggregated band that comprises multiple active frequency bands. The aggregation bitmap is transmitted in a capabilities information exchange (CIE) signal to a second device. A guard bitmap that identifies a set of guard frequency bands is also generated and transmitted in the CIE signal. Each guard frequency band indicates leakage transmission from the VLC transmitter.

摘要翻译： 用于支持可见光通信（VLC）的方法，装置和非暂时计算机可读存储介质在与其他支持VLC的设备建立链接期间在媒体访问控制（MAC）层中交换位图以进行能力场交换。 生成聚合位图以指示第一设备的可见光通信（VLC）发射机是否使用包括多个活动频带的至少一个聚合频带。 聚合位图在能力信息交换（CIE）信号中被发送到第二设备。 识别一组保护频带的保护位图也被生成并在CIE信号中发送。 每个保护频带表示来自VLC发射机的泄漏传输。

公开(公告)号：US08950933B2

公开(公告)日：2015-02-10

申请号：US12895225

申请日：2010-09-30

申请人： Sridhar Rajagopal ,  Farooq Khan ,  Ying Li ,  Jaeseung Son

发明人： Sridhar Rajagopal ,  Farooq Khan ,  Ying Li ,  Jaeseung Son

IPC分类号： H04B10/00 ,  H04B10/116 ,  H04B10/114

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： A method, apparatus, and a non-transitory computer readable storage medium for supporting visible light communication (VLC) exchanges bitmaps for capabilities field exchange in a media access control (MAC) layer during link establishment and association with other VLC-enabled devices. An aggregation bitmap is generated to indicate whether a visible light communication (VLC) transmitter of a first device uses at least one aggregated band that comprises multiple active frequency bands. The aggregation bitmap is transmitted in a capabilities information exchange (CIE) signal to a second device. A guard bitmap that identifies a set of guard frequency bands is also generated and transmitted in the CIE signal. Each guard frequency band indicates leakage transmission from the VLC transmitter.

摘要翻译： 用于支持可见光通信（VLC）的方法，装置和非暂时计算机可读存储介质在与其他支持VLC的设备建立链接期间在媒体访问控制（MAC）层中交换位图以进行能力场交换。 生成聚合位图以指示第一设备的可见光通信（VLC）发射机是否使用包括多个活动频带的至少一个聚合频带。 聚合位图在能力信息交换（CIE）信号中被发送到第二设备。 识别一组保护频带的保护位图也被生成并在CIE信号中发送。 每个保护频带表示来自VLC发射机的泄漏传输。