公开(公告)号：US07471830B2

公开(公告)日：2008-12-30

申请号：US10798860

申请日：2004-03-12

申请人： Chae-Whan Lim ,  Nam-Chul Kim ,  Ick-Hoon Jang ,  Hwan Kim ,  Jun-Hyo Park ,  Chong-Heun Kim ,  Ki-Taeg Shin ,  Jeong-Wook Seo

发明人： Chae-Whan Lim ,  Nam-Chul Kim ,  Ick-Hoon Jang ,  Hwan Kim ,  Jun-Hyo Park ,  Chong-Heun Kim ,  Ki-Taeg Shin ,  Jeong-Wook Seo

IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K9/36

CPC分类号： G06K9/38 ,  G06K9/325 ,  G06K9/40 ,  G06K2209/01

摘要： Disclosed is a device and method for recognizing characters in an image. An input part receives the image. A blurring decision part classifies the received image into character blocks and background blocks, calculates an average energy ratio of the character blocks, and compares the average energy ratio with a predetermined threshold to determine whether the received image is blurred. If the received image is not blurred, an image binarization part classifies the received image into character blocks and background blocks, compares pixels in the character blocks with a pixel threshold, binarizes the pixels in the character blocks into a brightness value for a character pixel and a brightness value for a background pixel based on the comparison, and binarizes pixels in the background blocks into the brightness value for a background pixel. A character recognition part recognizes characters in the binarized image.

摘要翻译： 公开了用于识别图像中的字符的装置和方法。 输入部分接收图像。 模糊判定部将接收到的图像分类为字符块和背景块，计算字符块的平均能量比，并将平均能量比与预定阈值进行比较，以确定接收到的图像是否模糊。 如果接收到的图像不模糊，则图像二值化部分将接收到的图像分类为字符块和背景块，将字符块中的像素与像素阈值进行比较，将字符块中的像素二值化为字符像素的亮度值， 基于比较的背景像素的亮度值，将背景块中的像素二值化为背景像素的亮度值。 字符识别部分识别二值化图像中的字符。

公开(公告)号：US07340110B2

公开(公告)日：2008-03-04

申请号：US10765085

申请日：2004-01-28

申请人： Chae-Whan Lim ,  Nam-Chul Kim ,  Ick-Hoon Jang ,  Jun-Hyo Park

发明人： Chae-Whan Lim ,  Nam-Chul Kim ,  Ick-Hoon Jang ,  Jun-Hyo Park

IPC分类号： G06K9/36

CPC分类号： G06K9/3283 ,  G06K2209/01

摘要： A device and method for correcting a skew of an object in an image. The device and method comprises an input part for receiving an image; a binarization part for binarizing pixels of the image into pixels having brightness values for character pixels and background pixels; a candidate stripe generation part for generating candidate stripes by performing dilation on character regions of the binarized image. The device and method further comprises a stripe classification part for classifying candidate stripes having a predetermined eccentricity and blob size among the candidate stripes, as valid stripes; a skew angle decision part for calculating direction angles of the classified stripes, and determining a direction angle having the largest count value as a skew angle; and a skew correction part for correcting a skew of an image by rotating the mage by the skew angle.

摘要翻译： 一种用于校正图像中物体的偏斜的装置和方法。 该装置和方法包括用于接收图像的输入部分; 用于将图像的像素二值化为具有用于字符像素和背景像素的亮度值的像素的二值化部件; 用于通过对二值化图像的字符区域进行扩张来生成候选条带的候选条带生成部分。 所述装置和方法还包括条纹分类部分，用于将候选条纹之间具有预定偏心度和斑点大小的候选条纹分类为有效条纹; 用于计算分类条纹的方向角的倾斜角判定部分，以及将具有最大计数值的方向角确定为倾斜角; 以及歪斜校正部，用于通过使所述法师旋转偏斜角来校正图像的歪斜。

公开(公告)号：US08639202B2

公开(公告)日：2014-01-28

申请号：US13409563

申请日：2012-03-01

申请人： Jong-Hwan Oh ,  Jun-Hyo Park ,  Hae-Min Park

发明人： Jong-Hwan Oh ,  Jun-Hyo Park ,  Hae-Min Park

IPC分类号： H04B1/18

CPC分类号： H04H20/22 ,  H04H20/57 ,  H04H60/52 ,  H04H2201/13

摘要： Provided is a device and method for providing an Alternative Frequency (AF) in a wireless terminal, by which an AF channel service suitable for a user environment can be provided. To this end, the device includes a radio broadcast receiver for receiving a radio broadcast signal, and a controller for attempting an AF channel switch after an elapse of a re-try wait time which is set according to a number of recent AF channel switch failures. The controller may detect the user environment as a walking state or a driving state. If a driving state is detected, the AF channel switch is attempted immediately when receive signal quality is below a threshold, regardless of the number of recent AF channel failures. If a walking state is detected, the AF channel switch is attempted after the elapse of the wait time.

摘要翻译： 提供了一种用于在无线终端中提供替代频率（AF）的装置和方法，由此可以提供适合于用户环境的AF信道服务。 为此，该装置包括用于接收无线电广播信号的无线电广播接收机，以及用于在根据最近的AF信道切换故障的数量设置的重试等待时间过去之后尝试AF信道切换的控制器 。 控制器可以将用户环境检测为行走状态或驾驶状态。 如果检测到驾驶状态，则无论最近的AF通道故障的数量如何，当接收信号质量低于阈值时，立即尝试AF通道切换。 如果检测到行走状态，则在经过等待时间之后尝试AF通道切换。

公开(公告)号：US08275333B2

公开(公告)日：2012-09-25

申请号：US12942412

申请日：2010-11-09

申请人： Jun-Hyo Park ,  Hye-Jung Kim

发明人： Jun-Hyo Park ,  Hye-Jung Kim

IPC分类号： G04B1/18 ,  H04K3/00

CPC分类号： H04H20/22

摘要： An apparatus and a method for switching to a channel including good receiving sensitivity among a plurality of channels for the same broadcast service are provided. The apparatus includes a radio broadcast receiving unit for receiving a radio broadcast, a display unit for indicating an existence of another frequency channel, through which it is possible to listen to a current broadcast, and a control unit for notifying a user of the existence of the other frequency channel if the other frequency channel exists for listening to the current broadcast service, and for switching a current channel to the other frequency channel to listen to the broadcast service through the other frequency channel if the other frequency channel is selected.

摘要翻译： 提供了一种用于切换到在相同广播服务的多个信道之间具有良好的接收灵敏度的信道的装置和方法。 该装置包括：无线电广播接收单元，用于接收无线电广播;显示单元，用于指示可以收听当前广播的另一个频道的存在;以及控制单元，用于通知用户存在 如果存在另一个频道用于监听当前广播业务，则另一个频道，如果选择了另一个频道，则将当前频道切换到另一个频道以通过另一个频道监听广播业务。