公开(公告)号：US08175164B2

公开(公告)日：2012-05-08

申请号：US11469558

申请日：2006-09-01

申请人： Bom-Yun Kim ,  Jong-Seon Kim ,  Shi-Hwa Lee ,  Sang-Jo Lee

发明人： Bom-Yun Kim ,  Jong-Seon Kim ,  Shi-Hwa Lee ,  Sang-Jo Lee

IPC分类号： H04N7/12

CPC分类号： H04N19/42 ,  H04N19/12 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/60

摘要： A device for data compression includes a domain transformer unit, a classifying unit, a variable length encoder, a fixed length encoder and a memory unit. The domain transformer unit transforms time-domain data into frequency-domain data. The classifying unit determines an encoding type of the frequency-domain data based on occurrence probability of the frequency-domain data. The variable length encoder encodes first frequency-domain data that are determined to be encoded by variable length coding. The fixed length encoder encodes second frequency-domain data that are determined to be encoded by fixed length coding. The memory unit stores the encoded first and second frequency-domain data by relocating the encoded first and second frequency-domain data such that the encoded first frequency-domain data are placed adjacently and the encoded second frequency-domain data are placed adjacently. Therefore, the time for decoding the corresponding data may be reduced.

摘要翻译： 用于数据压缩的装置包括域变换器单元，分类单元，可变长度编码器，固定长度编码器和存储器单元。 域变换器单元将时域数据转换为频域数据。 分类单元基于频域数据的发生概率来确定频域数据的编码类型。 可变长度编码器对被确定为通过可变长度编码进行编码的第一频域数据进行编码。 固定长度编码器编码被确定为由固定长度编码编码的第二频域数据。 存储器单元通过重新定位编码的第一和第二频域数据来存储经编码的第一和第二频域数据，使得编码的第一频域数据相邻放置，并且编码的第二频域数据被相邻地放置。 因此，可以减少对相应数据进行解码的时间。

公开(公告)号：US08014598B2

公开(公告)日：2011-09-06

申请号：US11766562

申请日：2007-06-21

申请人： Hwa-Hyun Cho ,  Bom-Yun Kim ,  Jong-Seon Kim

发明人： Hwa-Hyun Cho ,  Bom-Yun Kim ,  Jong-Seon Kim

IPC分类号： G06K9/00

CPC分类号： H04N9/646

摘要： A method of changing a pixel color includes determining whether a chrominance of a pixel is in a preference chrominance area, where the preference chrominance area is defined as a conic section in a two-dimensional chrominance plane and an eccentricity of the conic section is not greater than 1, and changing the chrominance of the pixel to a preference chrominance to generate a preference pixel when the chrominance of the pixel is in the preference chrominance area. Therefore, the method may set a preference chrominance area in a simple manner, and hardware for setting the preference chrominance area may be easily implemented.

摘要翻译： 改变像素颜色的方法包括确定像素的色度是否在优选色度区域中，其中偏好色度区域被定义为二维色度平面中的圆锥截面，并且圆锥截面的偏心度不大 并且当像素的色度处于偏好色度区域时，将像素的色度改变为偏好色度以产生偏好像素。 因此，该方法可以以简单的方式设置偏好色度区域，并且可以容易地实现用于设置偏好色度区域的硬件。

公开(公告)号：US07439886B2

公开(公告)日：2008-10-21

申请号：US11617481

申请日：2006-12-28

申请人： Jin-Feng Zhan ,  Jong-Seon Kim ,  Dong-Yul Lee ,  Bom-Yun Kim

发明人： Jin-Feng Zhan ,  Jong-Seon Kim ,  Dong-Yul Lee ,  Bom-Yun Kim

IPC分类号： H03M7/40

CPC分类号： H03M7/40

摘要： A variable-length decoder includes a bitstream interface unit and a decoding unit. The bitstream interface unit generates a decoding bitstream for a current decoding process based on an unused decoding bitstream and an input bitstream. The unused bitstream includes unused bits of a previous decoding bitstream. The decoding unit decodes the decoding bitstream to generate a plurality of symbols per clock cycle and provides a next unused bitstream for a next decoding process to the bitstream interface unit.

摘要翻译： 可变长度解码器包括比特流接口单元和解码单元。 比特流接口单元基于未使用的解码比特流和输入比特流产生用于当前解码过程的解码比特流。 未使用的比特流包括先前解码比特流的未使用比特。 解码单元解码译码比特流以在每个时钟周期产生多个符号，并向比特流接口单元提供用于下一个解码处理的下一个未使用的比特流。

公开(公告)号：US20080018801A1

公开(公告)日：2008-01-24

申请号：US11766562

申请日：2007-06-21

申请人： Hwa-Hyun Cho ,  Bom-Yun Kim ,  Jong-Seon Kim

发明人： Hwa-Hyun Cho ,  Bom-Yun Kim ,  Jong-Seon Kim

IPC分类号： H04N9/64

CPC分类号： H04N9/646

摘要： A method of changing a pixel color includes determining whether a chrominance of a pixel is in a preference chrominance area, where the preference chrominance area is defined as a conic section in a two-dimensional chrominance plane and an eccentricity of the conic section is not greater than 1, and changing the chrominance of the pixel to a preference chrominance to generate a preference pixel when the chrominance of the pixel is in the to preference chrominance area. Therefore, the method may set a preference chrominance area in a simple manner, and hardware for setting the preference chrominance area may be easily implemented.

摘要翻译： 改变像素颜色的方法包括确定像素的色度是否在优选色度区域中，其中偏好色度区域被定义为二维色度平面中的圆锥截面，并且圆锥截面的偏心度不大 并且当像素的色度处于偏好色度区域时，将像素的色度改变为偏好色度以产生偏好像素。 因此，该方法可以以简单的方式设置偏好色度区域，并且可以容易地实现用于设置偏好色度区域的硬件。

公开(公告)号：US20080030622A1

公开(公告)日：2008-02-07

申请号：US11782712

申请日：2007-07-25

申请人： Hwa-Hyun CHO ,  Jong-Seon KIM ,  Bom-Yun KIM

发明人： Hwa-Hyun CHO ,  Jong-Seon KIM ,  Bom-Yun KIM

IPC分类号： G09G1/16

CPC分类号： G09G5/00 ,  G06T5/009 ,  G09G2320/066 ,  G09G2360/16 ,  G09G2360/18 ,  H04N5/20

摘要： A contrast control apparatus includes a memory for storing input image signals within one frame and an image reducing unit for selecting at least one image signal of the input image signals. An accumulation value calculating unit calculates accumulation values for predetermined sampling gray values with respect to the selected image signal. An image characteristic decision unit determines at least one characteristic of the selected image based on the accumulation values. A contrast control function calculating unit calculates a contrast control function based on the characteristic of the selected image. A contrast controller controls contrast of the image signals stored in the memory according to the contrast control function.

摘要翻译： 对比度控制装置包括用于存储一帧内的输入图像信号的存储器和用于选择输入图像信号的至少一个图像信号的图像减少单元。 累加值计算单元针对所选择的图像信号计算用于预定采样灰度值的累积值。 图像特征确定单元基于累积值确定所选择的图像的至少一个特性。 对比度控制功能计算单元基于所选图像的特性来计算对比度控制功能。 对比度控制器根据对比度控制功能控制存储在存储器中的图像信号的对比度。

公开(公告)号：US20070182602A1

公开(公告)日：2007-08-09

申请号：US11617481

申请日：2006-12-28

申请人： Jin-Feng Zhan ,  Jong-Seon Kim ,  Dong-Yul Lee ,  Bom-Yun Kim

发明人： Jin-Feng Zhan ,  Jong-Seon Kim ,  Dong-Yul Lee ,  Bom-Yun Kim

IPC分类号： H03M7/40

CPC分类号： H03M7/40

摘要： A variable-length decoder includes a bitstream interface unit and a decoding unit, The bitstream interface unit generates a decoding bitstream for a current decoding process based on an unused decoding bitstream and an input bitstream. The unused bitstream includes unused bits of a previous decoding bitstream. The decoding unit decodes the decoding bitstream to generate a plurality of symbols per clock cycle and provides a next unused bitstream for a next decoding process to the bitstream interface unit.

摘要翻译： 可变长度解码器包括比特流接口单元和解码单元。比特流接口单元基于未使用的解码比特流和输入比特流生成用于当前解码过程的解码比特流。 未使用的比特流包括先前解码比特流的未使用比特。 解码单元解码译码比特流以在每个时钟周期产生多个符号，并向比特流接口单元提供用于下一个解码处理的下一个未使用的比特流。

公开(公告)号：US06700857B1

公开(公告)日：2004-03-02

申请号：US09704987

申请日：2000-11-02

申请人： Je-kook Kim ,  Young-wook Jang ,  Bom-yun Kim

发明人： Je-kook Kim ,  Young-wook Jang ,  Bom-yun Kim

IPC分类号： G11B700

CPC分类号： G11B7/1263 ,  G11B7/0903

摘要： Method and apparatus for controlling the light power of an optical disk system, and optical disk system having the same are provided. The optical disk system includes a microcontroller for controlling the operation of the optical disk system, a light power adjusting apparatus for generating a light quantity control signal for controlling the quantity of light emitted from the optical disk, and an optical pickup device for adjusting the quantity of light emitted from the optical disk in response to the light quantity control signal. The method includes the steps of converting E and F beam signals used for generating a tracking error signal into the form of voltage and synthesizing the converted E and F beam signals to obtain a tracking sum signal; maintaining the light power of the light emitting diode when the level of the tracking sum signal is the same as that of a reference signal; decreasing the light power of the light emitting diode, corresponding to the difference between the tracking sum signal and the reference signal, when the level of the travel sum signal is higher than that of the reference signal; and increasing the light power of the light emitting diode, corresponding to the difference between the tracking sum signal and the reference signal, when the level of the travel sum signal is lower than that of the reference signal. The progress of the method returns back to the stop of obtaining a tracking sum signal after increasing or decreasing the light power. Accordingly, the quantity of light reflected from the an optical disk can be constantly maintained.

摘要翻译： 提供了用于控制光盘系统的光功率的方法和装置，以及具有该光盘系统的光盘系统。 光盘系统包括用于控制光盘系统的操作的微控制器，用于产生用于控制从光盘发射的光量的光量控制信号的光功率调节装置，以及用于调节光量的光学拾取装置 响应于光量控制信号从光盘发射的光。 该方法包括以下步骤：将用于产生跟踪误差信号的E和F波束信号转换为电压形式，并合成转换的E和F波束信号以获得跟踪和信号; 当跟踪和信号的电平与参考信号的电平相同时，保持发光二极管的光功率; 当旅行和信号的电平高于参考信号的电平时，减小对应于跟踪和信号与参考信号之间的差的发光二极管的光功率; 并且当旅行和信号的电平低于参考信号的电平时，增加对应于跟踪和信号和参考信号之间的差的发光二极管的光功率。 该方法的进展返回到在增加或减少光功率之后获得跟踪和信号的停止。 因此，可以恒定地维持从光盘反射的光量。

公开(公告)号：US06526011B1

公开(公告)日：2003-02-25

申请号：US09553537

申请日：2000-04-20

申请人： Tae-Hyeon Sim ,  Bom-Yun Kim

发明人： Tae-Hyeon Sim ,  Bom-Yun Kim

IPC分类号： G11B509

CPC分类号： G11B19/28 ,  G11B7/005

摘要： A control apparatus and method for controlling a velocity of a spindle motor included in an optical disk reproducing system to prevent a forward or backward overrun of a spindle motor are disclosed. A widest signal detector of the apparatus detects the widest pulse width of an eight-to-fourteen modulation (EFM) signal according to a main clock signal and generates a first status signal representing a status of the pulse width of the detected signal according to a frame clock signal, which is divided by a first predetermined number j. A narrowest signal detector of the apparatus generates a second status signal representing a status of the narrowest pulse width of the first status signals according to the frame clock signal divided by a second predetermined number k, where k is greater than j. An overrun controller increases or decreases or holds a previously counted result according to the frame clock signal divided by the second predetermined number and the second status signal. The overrun controller compares the currently counted result with overrun upper limit and lower limit values and generates first and second flag signals braking the rotation of the spindle motor according to the compared result.

摘要翻译： 公开了一种用于控制包括在光盘再现系统中的主轴电机的速度以防止主轴电动机的向前或向后超速的控制装置和方法。 该装置的最宽的信号检测器根据主时钟信号检测八到十四个调制（EFM）信号的最宽的脉冲宽度，并产生一个第一状态信号，该第一状态信号表示检测信号的脉冲宽度状态 帧时钟信号，其被第一预定数量j除。 装置的最窄信号检测器根据帧时钟信号除以第二预定数量k，其中k大于j，产生表示第一状态信号最窄脉冲宽度的状态的第二状态信号。 溢出控制器根据帧时钟信号除以第二预定数量和第二状态信号来增加或减少或保持先前计数的结果。 超控控制器将当前计数结果与超限上限值和下限值进行比较，并根据比较结果生成第一和第二标志信号，制动主轴电机的旋转。

公开(公告)号：US08045064B2

公开(公告)日：2011-10-25

申请号：US11782712

申请日：2007-07-25

申请人： Hwa-Hyun Cho ,  Jong-Seon Kim ,  Bom-Yun Kim

发明人： Hwa-Hyun Cho ,  Jong-Seon Kim ,  Bom-Yun Kim

IPC分类号： H04N5/57

CPC分类号： G09G5/00 ,  G06T5/009 ,  G09G2320/066 ,  G09G2360/16 ,  G09G2360/18 ,  H04N5/20

摘要： A contrast control apparatus includes a memory for storing input image signals within one frame and an image reducing unit for selecting at least one image signal of the input image signals. An accumulation value calculating unit calculates accumulation values for predetermined sampling gray values with respect to the selected image signal. An image characteristic decision unit determines at least one characteristic of the selected image based on the accumulation values. A contrast control function calculating unit calculates a contrast control function based on the characteristic of the selected image. A contrast controller controls contrast of the image signals stored in the memory according to the contrast control function.

摘要翻译： 对比度控制装置包括用于存储一帧内的输入图像信号的存储器和用于选择输入图像信号的至少一个图像信号的图像减少单元。 累加值计算单元针对所选择的图像信号计算用于预定采样灰度值的累积值。 图像特征确定单元基于累积值确定所选择的图像的至少一个特性。 对比度控制功能计算单元基于所选图像的特性来计算对比度控制功能。 对比度控制器根据对比度控制功能控制存储在存储器中的图像信号的对比度。

公开(公告)号：US20110102353A1

公开(公告)日：2011-05-05

申请号：US12993157

申请日：2009-03-23

申请人： Bom-Yun Kim ,  Duck-Young Jung ,  Sang-Jin Lee ,  Chul-Yong Joung ,  Jin-Woo Chung ,  Young-Ho Shin ,  Bang-Won Lee

发明人： Bom-Yun Kim ,  Duck-Young Jung ,  Sang-Jin Lee ,  Chul-Yong Joung ,  Jin-Woo Chung ,  Young-Ho Shin ,  Bang-Won Lee

IPC分类号： G06F3/041

CPC分类号： G06F3/041 ,  G06F3/044 ,  G06F3/045

摘要： A touch panel device and a method for detecting a contact position are provided. The touch panel device includes a touch panel including a first touch pattern, the first touch pattern having a plurality of first touch pads connected in series; and a touch sensor for applying a clock signal to one terminal of the first touch pattern, receiving a first delayed clock signal from the other terminal of the first touch pattern, and generating contact position data corresponding to a contact position of an object using a difference in delay time between the clock signal and the first delayed clock signal. Thus, since the plurality of touch pads are connected in series, the contact position of the entire touch panel can be sensed with only one touch sensor, and the touch pad has a greater area than the connection line for a distinguished difference in resistance between the touch pad and the connection line, such that the contact position can be accurately detected.

摘要翻译： 提供了触摸面板装置和用于检测接触位置的方法。 所述触摸面板装置包括具有第一触摸图案的触摸面板，所述第一触摸图案具有串联连接的多个第一触摸板; 以及触摸传感器，用于将时钟信号施加到第一触摸图案的一个端子，从第一触摸图案的另一个端子接收第一延迟时钟信号，并且使用差异来产生对应于对象的接触位置的接触位置数据 在时钟信号和第一延迟时钟信号之间的延迟时间。 因此，由于多个触摸板是串联连接的，所以只需一个触摸传感器可以检测整个触摸面板的接触位置，并且触摸板具有比连接线更大的面积，以便在 触摸板和连接线，使得可以准确地检测接触位置。