公开(公告)号：US08942571B2

公开(公告)日：2015-01-27

申请号：US13726394

申请日：2012-12-24

Applicant: Industrial Technology Research Institute

Inventor： Chia-Pin Chen ,  Chang-Lung Hsiao ,  Ren-Jr Chen ,  Pei-Wei Hsu

IPC: H04B10/00 ,  H04B10/116

CPC classification number: H04B10/116

Abstract: In a light communication system, a data embedding unit arranged between a transmitter-side communication data processing unit and a light emitting device driver embeds a communication processed data at a spatial domain of an original image according to a modulation scheme, and gets multiple RGB values for a communication data embedded image. A receiving apparatus detects a transmitter-side communication data embedded image, generates a receiver-side communication data embedded image, compensate a deformation of the receiver-side communication data embedded image, outputs a warped communication data embedded image, and extracts a communication processed data from the warped communication data embedded image.

Abstract translation: 在光通信系统中，布置在发射机侧通信数据处理单元和发光设备驱动器之间的数据嵌入单元根据调制方案在原始图像的空间域处嵌入通信处理的数据，并获得多个RGB值 用于通信数据嵌入图像。 接收装置检测发送侧通信数据嵌入图像，生成接收侧通信数据嵌入图像，补偿接收侧通信数据嵌入图像的变形，输出翘曲通信数据嵌入图像，提取通信处理数据 从翘曲的通信数据嵌入图像。

公开(公告)号：US08619902B2

公开(公告)日：2013-12-31

申请号：US13672500

申请日：2012-11-08

Applicant: Industrial Technology Research Institute

Inventor： Yan-Xiu Zheng ,  Chang-Lung Hsiao ,  Wen-Sheng Feng

IPC: H04L27/00

CPC classification number: H04J13/107 ,  H04B2201/70701 ,  H04L27/2605

Abstract: A method forms a preamble sequence in a wireless communication system. The method comprises determining a value K related to a time-domain characteristic of the wireless communication system so that a time-domain preamble sequence includes a number of K waveforms similar in shape to one another having a linear phase shift, identifying a first preamble sequence for a first band, the first preamble sequence having a first length not dividable by K, identifying at least one second preamble sequence each for a second band, the at least one second preamble sequence having at least one second length, identifying the length of a third preamble sequence, the length of the third preamble sequence equal to a sum of the first length and the at least one second length, determining whether the time-domain characteristic is maintained when the one or more of the at least one second preamble sequence is concatenated with the first preamble sequence, modifying one or more of the at least one second preamble sequence if the time-domain characteristic is not maintained when concatenated, and forming the third preamble sequence by concatenating the first preamble sequence and the at least one second preamble sequence having one or more second preamble sequence modified.

Abstract translation: 一种方法在无线通信系统中形成前导序列。 该方法包括确定与无线通信系统的时域特性相关的值K，使得时域前导序列包括具有线性相移的形状彼此类似的K个波形的数目，识别第一前同步码序列 对于第一频带，第一前导码序列具有不能由K划分的第一长度，标识每个用于第二频带的至少一个第二前同步码序列，所述至少一个第二前同步码序列具有至少一个第二长度， 第三前导码序列，第三前导序列的长度等于第一长度和至少一个第二长度的和，确定当至少一个第二前导码序列中的一个或多个是第一前导序列是否保持时域特性时 与第一前同步码序列连接，如果不保持时域特征，修改至少一个第二前同步码序列中的一个或多个 n级联，并且通过连接具有修改的一个或多个第二前同步码序列的第一前同步码序列和至少一个第二前同步码序列来形成第三前导序列。

公开(公告)号：US09312954B2

公开(公告)日：2016-04-12

申请号：US13712748

申请日：2012-12-12

Applicant: Industrial Technology Research Institute

Inventor： Ren-JR Chen ,  Chang-Lung Hsiao ,  Chun-Chuan Lin ,  Tsai-Lin Tai ,  Lung-Pin Chung ,  Hsiu-Hsiang Chen

IPC: H04B10/00 ,  H04B10/11 ,  H04B10/114

CPC classification number: H04B10/11 ,  H04B10/1143

Abstract: A light communication system, a transmitter and a receiver are provided. The light communication system includes the transmitter and the receiver. The transmitter has a first processing unit and a light-emitting element. The first processing unit produces a transmission signal. The light-emitting element produces light to carry the transmission signal. The receiver has a first variable lens, a photosensitive element and a second processing unit. The first variable lens changes the propagation path of the light. The photosensitive element senses the light passed through the first variable lens to produce a receiving signal. The second processing unit controls the first variable lens based on the signal quality of the receiving signal to change the equivalent channel between the transmission signal and the receiving signal. Therefore, the transmission capability of the light communication system is enhanced.

Abstract translation: 提供光通信系统，发射机和接收机。 光通信系统包括发射机和接收机。 发射机具有第一处理单元和发光元件。 第一处理单元产生传输信号。 发光元件产生光以携带传输信号。 接收机具有第一可变透镜，感光元件和第二处理单元。 第一可变透镜改变光的传播路径。 感光元件感测通过第一可变透镜的光以产生接收信号。 第二处理单元基于接收信号的信号质量来控制第一可变透镜，以改变发送信号和接收信号之间的等效信道。 因此，提高了光通信系统的传输能力。

公开(公告)号：US09450671B2

公开(公告)日：2016-09-20

申请号：US13671085

申请日：2012-11-07

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chia-Pin Chen ,  Chang-Lung Hsiao ,  Ren-Jr Chen

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

CPC classification number: H04B10/1141 ,  H04B10/116

Abstract: According to one exemplary embodiment, a light communication system comprises a transmitting apparatus and a receiving apparatus. The transmitting apparatus generates one or more patterns of light to decide at least one reference area, and transmits signals by emitting light in the at least one reference area decided by the one or more patterns. The receiving apparatus takes measurements fewer than a total amount of pixels over a sensed image to detect the one or more patterns of light, and decides at least one ROI according to one or more detected one or more patterns; then takes all signals of light in the at least one ROI for processing of the light communication, and takes measurements fewer than a total amount of pixels over at least one tracking area for tracking the one or more patterns of light emitted by the transmitting apparatus.

Abstract translation: 根据一个示例性实施例，光通信系统包括发射装置和接收装置。 发送装置生成一种或多种模式的光以决定至少一个参考区域，并且通过在由一个或多个模式决定的至少一个参考区域中发射光来发送信号。 所述接收装置在检测到的图像上进行少于总像素的测量，以检测所述一个或多个图案，并根据一个或多个检测到的一个或多个图案来决定至少一个ROI; 然后在所述至少一个ROI中获取光的所有信号以处理所述光通信，并且在至少一个跟踪区域上测量少于总像素的量，以跟踪由所述发送装置发射的一种或多种模式的光。

公开(公告)号：US20140178080A1

公开(公告)日：2014-06-26

申请号：US13726394

申请日：2012-12-24

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chia-Pin Chen ,  Chang-Lung Hsiao ,  Ren-Jr Chen ,  Pei-Wei Hsu

IPC: H04B10/116

CPC classification number: H04B10/116

Abstract: In a light communication system, a data embedding unit arranged between a transmitter-side communication data processing unit and a light emitting device driver embeds a communication processed data at a spatial domain of an original image according to a modulation scheme, and gets multiple RGB values for a communication data embedded image. A receiving apparatus detects a transmitter-side communication data embedded image, generates a receiver-side communication data embedded image, compensate a deformation of the receiver-side communication data embedded image, outputs a warped communication data embedded image, and extracts a communication processed data from the warped communication data embedded image.

Abstract translation: 在光通信系统中，布置在发射机侧通信数据处理单元和发光设备驱动器之间的数据嵌入单元根据调制方案在原始图像的空间域处嵌入通信处理的数据，并获得多个RGB值 用于通信数据嵌入图像。 接收装置检测发送侧通信数据嵌入图像，生成接收侧通信数据嵌入图像，补偿接收侧通信数据嵌入图像的变形，输出翘曲通信数据嵌入图像，提取通信处理数据 从翘曲的通信数据嵌入图像。

公开(公告)号：US20130064316A1

公开(公告)日：2013-03-14

申请号：US13672500

申请日：2012-11-08

Applicant: Industrial Technology Research Institute

Inventor： Yan-Xiu Zheng ,  Chang-Lung Hsiao ,  Wen-Sheng Feng

IPC: H04L27/18 ,  H04W4/00

CPC classification number: H04J13/107 ,  H04B2201/70701 ,  H04L27/2605

Abstract: A method forms a preamble sequence in a wireless communication system. The method comprises determining a value K related to a time-domain characteristic of the wireless communication system so that a time-domain preamble sequence includes a number of K waveforms similar in shape to one another having a linear phase shift, identifying a first preamble sequence for a first band, the first preamble sequence having a first length not dividable by K, identifying at least one second preamble sequence each for a second band, the at least one second preamble sequence having at least one second length, identifying the length of a third preamble sequence, the length of the third preamble sequence equal to a sum of the first length and the at least one second length, determining whether the time-domain characteristic is maintained when the one or more of the at least one second preamble sequence is concatenated with the first preamble sequence, modifying one or more of the at least one second preamble sequence if the time-domain characteristic is not maintained when concatenated, and forming the third preamble sequence by concatenating the first preamble sequence and the at least one second preamble sequence having one or more second preamble sequence modified.

Abstract translation: 一种方法在无线通信系统中形成前导序列。 该方法包括确定与无线通信系统的时域特性相关的值K，使得时域前导序列包括具有线性相移的形状彼此类似的K个波形的数目，识别第一前同步码序列 对于第一频带，第一前导码序列具有不能由K划分的第一长度，标识每个用于第二频带的至少一个第二前同步码序列，所述至少一个第二前同步码序列具有至少一个第二长度， 第三前导码序列，第三前导序列的长度等于第一长度和至少一个第二长度的和，确定当至少一个第二前导码序列中的一个或多个是第一前导序列是否保持时域特性时 与第一前同步码序列连接，如果不保持时域特征，修改至少一个第二前同步码序列中的一个或多个 n级联，并且通过连接具有修改的一个或多个第二前同步码序列的第一前同步码序列和至少一个第二前同步码序列来形成第三前导序列。