公开(公告)号：US20060023587A1

公开(公告)日：2006-02-02

申请号：US11189855

申请日：2005-07-27

申请人： Jae-hyun Kim

发明人： Jae-hyun Kim

IPC分类号： G11B7/00

CPC分类号： G11B19/12

摘要： An optical disc player and method reproducing data from an optical disc. The optical disc player may include a data reproducing module irradiating a laser signal onto the optical disc to reproduce a predetermined radio frequency signal corresponding to the data, and a controller determining that a reproduction area of the optical disc is an open session when the data reproducing module reproduces the radio frequency signal having a magnitude less than or equal a predetermined threshold value for a predetermined threshold time. The controller may reproduce the table of contents information recorded in a lead-in area of each session of the optical disc to check the magnitude of a reproduced radio frequency signal so as to determine whether each session is open. As a result, a rapid decision can be made as to whether each session is open to speedily complete a preparation for reproduction and recording from/to the optical disc.

摘要翻译： 一种光盘播放器和从光盘再现数据的方法。 光盘播放器可以包括数据再现模块，其将激光信号照射到光盘上以再现对应于该数据的预定射频信号，以及控制器，当数据再现时确定光盘的再现区域是开放会话 模块在预定阈值时间内再现具有小于或等于预定阈值的幅度的射频信号。 控制器可以再现记录在光盘的每个会话的导入区中的内容信息，以检查再现的射频信号的大小，以便确定每个会话是否打开。 结果，可以快速地决定每个会话是否开放以便快速完成从光盘再现和记录的准备。

公开(公告)号：US20050168172A1

公开(公告)日：2005-08-04

申请号：US11017078

申请日：2004-12-21

申请人： Jae-hyun Kim

发明人： Jae-hyun Kim

IPC分类号： G02F1/133 ,  H05B41/285 ,  H05B41/38 ,  H05B37/02 ,  H05B39/04

CPC分类号： H05B41/2855 ,  H05B41/382

摘要： A backlight inverter system and a start-up control method thereof to apply an optimal start-up voltage to a backlight lamp according to an environment temperature, such that the backlight lamp is stably started without damage to the system. If the backlight lamp is not started in the normal condition, the start-up voltage level is gradually increased. The start-up voltage level is adjusted by controlling an amount of electric current flowing into the backlight lamp by using a plurality of parallel-connected capacitors, each having a switching element. If an abnormal electric current is detected in the backlight inverter system, an automatic shut-down function is further performed to automatically stop the system, thereby protecting the system from an overcurrent.

摘要翻译： 一种背光逆变器系统及其启动控制方法，用于根据环境温度向背光灯施加最佳启动电压，使得背光灯稳定地起动而不损坏系统。 如果背光灯在正常状态下没有启动，启动电压电平逐渐增加。 通过使用各自具有开关元件的多个并联电容器来控制流入背光灯的电流量来调节启动电压电平。 如果在背光逆变器系统中检测到异常电流，则进一步执行自动关闭功能以自动停止系统，从而保护系统免受过电流的影响。

公开(公告)号：US6124995A

公开(公告)日：2000-09-26

申请号：US971670

申请日：1997-11-17

申请人： Jae-hyun Kim

发明人： Jae-hyun Kim

IPC分类号： H04N5/783 ,  G11B5/008 ,  G11B5/09 ,  G11B5/53 ,  G11B5/588 ,  G11B15/18 ,  G11B20/10 ,  G11B20/14 ,  H03M7/40 ,  H04N5/92 ,  H04N5/93 ,  H04N19/126 ,  H04N19/134 ,  H04N19/146 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/423 ,  H04N19/60 ,  H04N19/625 ,  H04N19/66 ,  H04N19/85 ,  H04N19/88 ,  H04N19/91

CPC分类号： G11B20/1426 ,  G11B5/0086 ,  G11B5/588 ,  G11B15/1875 ,  G11B5/53

摘要： In a fixed bit-rate encoding method, a unit block composed of a predetermined number of transform blocks is constructed by dividing input image data into transform blocks and a unit for fixing the bit-amount is constructed by extracting one of the predetermined number of unit blocks, to thereby perform transform-encoding. A real compression scale factor is calculated by quantizing the transform coefficient obtained by a transform-encoding operation according to initial compression scale factors and by comparing the bit-amount quantized in a unit block with a target bit-amount. The transform coefficient is quantized in a unit block using said real compression scale factor, and the quantized transform coefficient is variable-length-encoded to have the bit-amount fixed in an bit-amount fixing unit. The encoded DC coefficient and a predetermined number of low-frequency AC coefficients are recorded in an IDC data region and the all of the encoded coefficients are recorded in a DDC data region. The fixed bit-rate is easily performed by setting a bit-amount fixing unit as a cluster which is smaller than a frame. When the high-speed search operation is performed, information of the scanning position corresponding to each searching speed is scanned after scanning only the IDC region located in the leading end of the recording track, including most of the image information. Accordingly, most of the image information is reproduced even when the head does not scan the whole recording track.

摘要翻译： 在固定比特率编码方法中，通过将输入图像数据分割为变换块来构成由预定数量的变换块组成的单位块，并且通过提取预定数量的单位中的一个来构造位数量的单位 块，从而进行变换编码。 通过根据初始压缩比例因子对通过变换编码操作获得的变换系数进行量化，并将单位块中量化的比特量与目标比特量进行比较来计算实际压缩比例因子。 使用所述实际压缩比例因子在单位块中量化变换系数，并且量化的变换系数被可变长度编码以使位量固定在位量定影单元中。 编码的DC系数和预定数量的低频AC系数被记录在IDC数据区域中，并且所有的编码系数被记录在DDC数据区域中。 通过将比特量固定单元设置为小于帧的簇来容易地执行固定比特率。 当执行高速搜索操作时，扫描与搜索速度相对应的扫描位置的信息，仅扫描位于记录道的前端的IDC区域，包括大部分图像信息。 因此，即使当头不扫描整个记录轨道时，大多数图像信息被再现。

公开(公告)号：US5777812A

公开(公告)日：1998-07-07

申请号：US506772

申请日：1995-07-26

申请人： Jae-hyun Kim

发明人： Jae-hyun Kim

IPC分类号： H04N5/783 ,  G11B5/008 ,  G11B5/09 ,  G11B5/53 ,  G11B5/588 ,  G11B15/18 ,  G11B20/10 ,  G11B20/14 ,  H03M7/40 ,  H04N5/92 ,  H04N5/93 ,  H04N19/126 ,  H04N19/134 ,  H04N19/146 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/423 ,  H04N19/60 ,  H04N19/625 ,  H04N19/66 ,  H04N19/85 ,  H04N19/88 ,  H04N19/91

CPC分类号： G11B20/1426 ,  G11B5/0086 ,  G11B5/588 ,  G11B15/1875 ,  G11B5/53

摘要： In a fixed bit-rate encoding method, a unit block composed of a predetermined number of transform blocks is constructed by dividing input image data into transform blocks and a unit for fixing the bit-amount is constructed by extracting one of the predetermined number of unit blocks, to thereby perform transform-encoding. A real compression scale factor is calculated by quantizing the transform coefficient obtained by a transform-encoding operation according to initial compression scale factors and by comparing the bit-amount quantized in a unit block with a target bit-amount. The transform coefficient is quantized in a unit block using said real compression scale factor, and the quantized transform coefficient is variable-length-encoded to have the bit-amount fixed in an bit-amount fixing unit. The encoded DC coefficient and a predetermined number of low-frequency AC coefficients are recorded in an IDC data region and the all of the encoded coefficients are recorded in a DDC data region. The fixed bit-rate is easily performed by setting a bit-amount fixing unit as a cluster which is smaller than a frame. When the high-speed search operation is performed, information of the scanning position corresponding to each searching speed is scanned after scanning only the IDC region located in the leading end of the recording track, including most of the image information. Accordingly, most of the image information is reproduced even when the head does not scan the whole recording track.