公开(公告)号：US08666259B2

公开(公告)日：2014-03-04

申请号：US13268323

申请日：2011-10-07

申请人： Sang-Kyu Lim ,  Il-Soon Jang ,  Dae Ho Kim ,  You Jin Kim ,  Tae-Gyu Kang

发明人： Sang-Kyu Lim ,  Il-Soon Jang ,  Dae Ho Kim ,  You Jin Kim ,  Tae-Gyu Kang

IPC分类号： H04B10/00 ,  H04B10/12 ,  H04B10/06

CPC分类号： H04B10/116

摘要： An apparatus for transmitting data for visible light communication sets up the pulse width control step of pulse width modulation (PWM) in a unit time interval, modulates each symbol of VLC source data input into a PWM signal in accordance with the pulse width control step, generates a visible light modulation signal by controlling the turn-on time or turn-off time of a plurality of light emitting diodes (LEDs) in response to the PWM signal, and transmits the visible light modulation signal.

摘要翻译： 用于发送用于可见光通信的数据的装置以单位时间间隔设置脉宽调制（PWM）的脉冲宽度控制步骤，根据脉冲宽度控制步骤对输入到PWM信号的VLC源数据的每个符号进行调制， 通过响应于PWM信号控制多个发光二极管（LED）的接通时间或关断时间来产生可见光调制信号，并发送可见光调制信号。

公开(公告)号：US20120157159A1

公开(公告)日：2012-06-21

申请号：US13326902

申请日：2011-12-15

申请人： Il-Soon JANG ,  Dae Ho Kim ,  Sang-Kyu Lim ,  You Jin Kim ,  Tae-Gyu Kang

发明人： Il-Soon JANG ,  Dae Ho Kim ,  Sang-Kyu Lim ,  You Jin Kim ,  Tae-Gyu Kang

IPC分类号： H04N5/262 ,  H04W88/02

CPC分类号： H04B10/116

摘要： A communication apparatus using an image sensor captures an image including a light signal transmitted from a transmission apparatus that includes a transmission light source, and obtains data from the captured image. In a case that a reception error rate generated by the obtained data is changed, a cause of the change of the error rate is measured, and at least one of a zooming operation and a focusing operation is performed depending on the measured result, thereby correcting the error.

摘要翻译： 使用图像传感器的通信装置捕获包括从包括发送光源的发送装置发送的光信号的图像，并从捕获图像获取数据。 在由所获得的数据产生的接收错误率改变的情况下，测量误差率改变的原因，并且根据测量结果执行变焦操作和聚焦操作中的至少一个，由此校正 错误。

公开(公告)号：US20110069965A1

公开(公告)日：2011-03-24

申请号：US12883574

申请日：2010-09-16

申请人： Dae-Ho KIM ,  Sang-Kyu Lim ,  Il-Soon Jang ,  Tae-Gyu Kang

发明人： Dae-Ho KIM ,  Sang-Kyu Lim ,  Il-Soon Jang ,  Tae-Gyu Kang

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： A visible light wireless communication receiver includes: a source code recognizing unit that receives a source bit stream and recognizes the source bit stream as source codes of a unit of a first number of bits; and a line coding unit that encodes each of the source codes into an encoding code of a unit of a second number of bits, the second number being larger than the first number. In particular, in the encoding code, the number of bits corresponding to 1 is the same as the number of bits corresponding to 0. Therefore, the change in brightness of lighting may be minimized in the visible light wireless communication.

摘要翻译： 可见光无线通信接收机包括：源代码识别单元，其接收源比特流并将源比特流识别为第一比特数的单位的源代码; 以及行编码单元，其将每个源代码编码为第二位数单位的编码码，第二数大于第一数。 特别地，在编码代码中，对应于1的比特数与对应于0的比特数相同。因此，在可见光无线通信中照明亮度的变化可能被最小化。

公开(公告)号：US20110033181A1

公开(公告)日：2011-02-10

申请号：US12846351

申请日：2010-07-29

申请人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

发明人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

IPC分类号： H04J14/00 ,  H04B10/04 ,  H04B10/08

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04J14/02

摘要： There is disclosed a visible light communication technology capable of intuitively recognizing a transmission speed, an alignment state, a communication state, or a transmission rate. A visible light communication apparatus according to an embodiment of the present invention includes: a light source selecting unit selecting at least one light source from among a plurality of light sources generating lights having different wavelengths by considering intuitive information distinguished depending on a wavelength in a visible light band; and a visible light communication unit performing visible light communication by at least one selected light source to allow the intuitive information to be recognized by a color corresponding to at least one selected light source. Accordingly, a user using the visible light communication can intuitively know an optimal communication state or transmission speed.

摘要翻译： 公开了能够直观地识别传输速度，对准状态，通信状态或传输速率的可见光通信技术。 根据本发明的实施例的可见光通信装置包括：光源选择单元，通过考虑根据可见光波长区分的直观信息，从多个光源中选出具有不同波长的光源中的至少一个光源 光带; 以及可见光通信单元，其通过至少一个选择的光源执行可见光通信，以允许通过与至少一个所选择的光源相对应的颜色来识别直观信息。 因此，使用可见光通信的用户可以直观地知道最佳通信状态或传输速度。

公开(公告)号：US09112606B2

公开(公告)日：2015-08-18

申请号：US13323331

申请日：2011-12-12

申请人： You Jin Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Dae Ho Kim ,  Il-Soon Jang

发明人： You Jin Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Dae Ho Kim ,  Il-Soon Jang

IPC分类号： H04B10/00 ,  H04B10/116

CPC分类号： H04B10/116

摘要： A transmitting apparatus using visible light communication generates transmission data into a two-dimensional data code according to a predetermined code method between the transmitting apparatus and a receiving apparatus and transmits the two-dimensional data code through a plurality of light emitting diodes (LED) that are arranged in a two-dimensional form. Therefore, the receiving apparatus senses light from a plurality of LEDs as an image using an image sensor, demodulates the image into a two-dimensional data code, decodes the two-dimensional data code using a code book, and restores data.

摘要翻译： 使用可见光通信的发送装置根据发送装置和接收装置之间的预定码法，将发送数据生成为二维数据码，并通过多个发光二极管（LED）发送二维数据码，该多个发光二极管 以二维形式排列。 因此，接收装置使用图像传感器感测来自多个LED的光作为图像，将图像解调为二维数据码，使用码本对二维数据码进行解码，并恢复数据。

公开(公告)号：US08977134B2

公开(公告)日：2015-03-10

申请号：US13609783

申请日：2012-09-11

申请人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

发明人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

IPC分类号： H04B10/116 ,  H04B10/114 ,  H04J14/02

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04J14/02

摘要： There is disclosed a visible light communication technology capable of intuitively recognizing a transmission speed, an alignment status, a communication status, or a transmission rate. A visible light communication apparatus according to an embodiment of the present invention includes: a light source selecting unit selecting at least one light source of a plurality of light sources generating lights having different wavelengths by considering intuitive information distinguished depending on a wavelength in a visible light band; and a visible light communication unit performing visible light communication by at least one selected light source to allow the intuitive information to be recognized by a color corresponding to at least one selected light source. Accordingly, a user using the visible light communication can intuitively know an optimal communication status or transmission speed.

摘要翻译： 公开了能够直观地识别传输速度，对准状态，通信状态或传送速率的可见光通信技术。 根据本发明实施例的可见光通信装置包括：光源选择单元，通过考虑根据可见光中的波长区分的直观信息来选择产生具有不同波长的光的多个光源的至少一个光源 带; 以及可见光通信单元，其通过至少一个选择的光源执行可见光通信，以允许通过与至少一个所选择的光源相对应的颜色来识别直观信息。 因此，使用可见光通信的用户可以直观地知道最佳通信状态或传输速度。

公开(公告)号：US08542368B2

公开(公告)日：2013-09-24

申请号：US13310598

申请日：2011-12-02

申请人： Dae Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang ,  You Jin Kim

发明人： Dae Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang ,  You Jin Kim

IPC分类号： G01B11/14

CPC分类号： G01S11/12 ,  G01S5/16 ,  G01S5/163

摘要： A position measuring apparatus receives at least one precise position information set from at least one visible-light wireless communication device including a transmission light source, and upon receipt of the at least one precise position information ser, acquires a virtual distance based on the positions of transmission light sources imaged on an image sensor. Next, the position is measured according to the precise position information and the actual distance, virtual distance, and image sensor inclination based on this information.

摘要翻译： 位置测量装置从至少一个包括传输光源的可见光无线通信设备接收至少一个精确位置信息集，并且在接收到至少一个精确位置信息服务时，基于位置信息的位置获取虚拟距离 传输光源成像在图像传感器上。 接下来，基于该信息，根据精确位置信息和实际距离，虚拟距离和图像传感器倾角来测量位置。

公开(公告)号：US20120087676A1

公开(公告)日：2012-04-12

申请号：US13268323

申请日：2011-10-07

申请人： Sang-Kyu Lim ,  Il-Soon Jang ,  Dae Ho Kim ,  Yon Jin Kim ,  Tae-Gyu Kang

发明人： Sang-Kyu Lim ,  Il-Soon Jang ,  Dae Ho Kim ,  Yon Jin Kim ,  Tae-Gyu Kang

IPC分类号： H04B10/04

CPC分类号： H04B10/116

摘要： An apparatus for transmitting data for visible light communication sets up the pulse width control step of pulse width modulation (PWM) in a unit time interval, modulates each symbol of VLC source data input into a PWM signal in accordance with the pulse width control step, generates a visible light modulation signal by controlling the turn-on time or turn-off time of a plurality of light emitting diodes (LEDs) in response to the PWM signal, and transmits the visible light modulation signal.

摘要翻译： 用于发送用于可见光通信的数据的装置以单位时间间隔设置脉宽调制（PWM）的脉冲宽度控制步骤，根据脉冲宽度控制步骤对输入到PWM信号的VLC源数据的每个符号进行调制， 通过响应于PWM信号控制多个发光二极管（LED）的接通时间或关断时间来产生可见光调制信号，并发送可见光调制信号。

公开(公告)号：US08634725B2

公开(公告)日：2014-01-21

申请号：US13269197

申请日：2011-10-07

申请人： Il-Soon Jang ,  Dae Ho Kim ,  Sang-Kyu Lim ,  You Jin Kim ,  Tae-Gyu Kang

发明人： Il-Soon Jang ,  Dae Ho Kim ,  Sang-Kyu Lim ,  You Jin Kim ,  Tae-Gyu Kang

IPC分类号： H04B10/00 ,  H04B10/04 ,  H04B10/12

CPC分类号： H04B10/116

摘要： A transmitting apparatus using visible light communication generates a light source control signal from color information representing additional information and transmits additional information with a color of light that is emitted by a light source by controlling an on/off time of a plurality of LEDs according to the light source control signal. Therefore, a user can intuitively know additional information from a color of light that is emitted by the light source.

摘要翻译： 使用可见光通信的发送装置从表示附加信息的颜色信息生成光源控制信号，并通过控制多个LED的开/关时间根据光源发出由光源发出的光的颜色的附加信息 光源控制信号。 因此，用户可以直观地从光源发出的光的颜色中知道附加信息。

公开(公告)号：US08913893B2

公开(公告)日：2014-12-16

申请号：US13427714

申请日：2012-03-22

申请人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang ,  You-Jin Kim

发明人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang ,  You-Jin Kim

IPC分类号： H04B10/00 ,  H04B10/116

CPC分类号： H04B10/116

摘要： Disclosed herein are a visible light communication method and apparatus. The visible light communication method includes determining a dimming level variable to perform minute dimming control, selecting an upper dimming symbol and a lower dimming symbol, which belong to Variable Pulse Position Modulation (VPPM) symbols, based on the dimming level variable, determining at least one of the number of upper dimming symbols to be sent and the number of lower dimming symbols to be sent based on the dimming level variable, and generating a transmission sequence corresponding to the dimming level variable by combining the upper dimming symbols and the lower dimming symbols based on the number of symbols to be sent.

摘要翻译： 本文公开了可见光通信方法和装置。 可见光通信方法包括：基于调光电平变量确定调光电平变量以执行微调光控制，选择属于可变脉冲位置调制（VPPM）符号的上调光符号和下调光符号，至少确定 基于调光电平变量发送的上调光符号的数量和要发送的下调光符号的数量之一，以及通过组合上调光符号和下调光符号来生成与调光电平变量相对应的发送序列 基于要发送的符号数量。