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1. 发明申请

US20080130722A1 APPARATUS AND METHOD FOR DETECTING TIME-FREQUENCY CODE IN MB-OFDM UWB SYSTEM 失效
标题翻译：在MB-OFDM UWB系统中检测时频码的装置和方法
公开(公告)号：US20080130722A1
公开(公告)日：2008-06-05
申请号：US11948179
申请日：2007-11-30
申请人： Sung-Woo CHOI , Cheol-Ho SHIN , Kyu-Min KANG , Sang-Sung CHOI
发明人： Sung-Woo CHOI , Cheol-Ho SHIN , Kyu-Min KANG , Sang-Sung CHOI
IPC分类号： H04B1/69
CPC分类号： H04B1/713 , H04B1/709 , H04L5/0007 , H04L5/0037 , H04L27/2655 , H04L27/2675
摘要： Provided is an apparatus and method for detecting a time-frequency code in an MB-OFDM UWB system. The apparatus includes a controller for providing a band selection signal to the RF receiver and outputting a preamble selection signal at regular symbol periods to calculate a cross correlation value for a predetermine time period more than a beacon frame interval when a time-frequency code search start signal is received; and a cross correlator for storing information on preamble patterns, selecting a preamble stored depending on the preamble selection signal, and calculating a cross correlation value for a digital signal transferred through the RF receiver, wherein the controller determines a time-frequency code using a preamble where a peak occurs as a time-frequency code that is currently in use when a peak signal is inputted based on the calculated cross correlation value, and transmits the determined time-frequency code to the MAC receiver.
摘要翻译：提供了一种用于检测MB-OFDM UWB系统中的时间 - 频率代码的装置和方法。该装置包括：控制器，用于向RF接收机提供频带选择信号，并以规则符号周期输出前同步码选择信号，以便在时间频率代码搜索开始时比预定的时间段大于信标帧间隔计算互相关值信号被接收; 以及交叉相关器，用于存储关于前导码模式的信息，选择根据前导选择信号存储的前导码，以及计算通过RF接收机传送的数字信号的互相关值，其中控制器使用前导码确定时间频率码其中当基于所计算的互相关值输入峰值信号时作为当前正在使用的时间频率代码发生峰值，并将所确定的时间频率代码发送到MAC接收机。

2. 发明申请

US20120312878A1 APPARATUS AND METHOD FOR GENERATING AND RECOGNIZING BARCODE IN PORTABLE TERMINAL 有权
标题翻译：用于在便携式终端中产生和识别骨架的装置和方法
公开(公告)号：US20120312878A1
公开(公告)日：2012-12-13
申请号：US13492121
申请日：2012-06-08
申请人： Sung-Woo CHOI
发明人： Sung-Woo CHOI
IPC分类号： G06K7/10 , G06K19/06
CPC分类号： G06K19/06037 , G06K7/10722
摘要： An apparatus and a method for generating and recognizing a barcode in a portable terminal are provided. The apparatus for generating and recognizing a barcode in a portable terminal includes a barcode generator for dividing a barcode into a symbol region, in which data is stored, and a pattern region, in which information on a position of the barcode and the data stored in the symbol region is stored, and positioning a plurality of groups of error correction blocks while interconnecting a plurality of error correction blocks belonging to a same group in the symbol region; and a barcode recognizer for extracting information on the position of the barcode and the data stored in the symbol region through the pattern region of the barcode and searching for a symbol in the symbol region to extract data from the searched symbol.
摘要翻译：提供了一种用于在便携式终端中生成和识别条形码的装置和方法。用于在便携式终端中生成和识别条形码的装置包括：条形码产生器，用于将条形码分割成其中存储数据的符号区域;以及图案区域，其中关于条形码的位置和存储在其中的数据的信息存储符号区域，并且在将符号区域中属于同一组的多个纠错块互连的同时定位多组纠错块; 以及条形码识别器，用于通过条形码的图案区域提取关于条形码的位置和存储在符号区域中的数据的信息，并且搜索符号区域中的符号以从搜索的符号提取数据。

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