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1. 发明申请

US20080049144A1 Frequency demodulator for recovering SECAM chrominance signal and method thereof 有权
标题翻译：用于恢复SECAM色度信号的频率解调器及其方法
公开(公告)号：US20080049144A1
公开(公告)日：2008-02-28
申请号：US11889647
申请日：2007-08-15
申请人： Hyo-Ju Kim , Seong-Won Lee , Do-Gyun Kim , Yun-Sung Wang , Ji-Hoon Jang
发明人： Hyo-Ju Kim , Seong-Won Lee , Do-Gyun Kim , Yun-Sung Wang , Ji-Hoon Jang
IPC分类号： H04N9/66
CPC分类号： H04N11/186
摘要： An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, to a frequency demodulator and method of recovering a SECAM chrominance signal which can utilize both a real number portion and an imaginary number portion, and generate a frequency-demodulated chrominance signal using an arctangent approximation, and thereby can simplify a circuit configuration of a frequency demodulator to perform a fixed-point calculation is provided. A frequency demodulator for recovering a chrominance signal, the frequency demodulator comprises a phase differentiator generating a phase difference component between neighboring samples from an input signal and a phase estimator calculating a phase difference between the neighboring samples by using an arctangent approximation, based on the generated phase difference component, wherein the frequency demodulator generates a frequency-demodulated chrominance signal and the phase difference corresponds to the chrominance signal.
摘要翻译：一种用于利用存储器（SECAM）复合视频基带信号（CVBS）从顺序色彩恢复色度信号的装置，更具体地说，涉及一种频率解调器和恢复SECAM色度信号的方法，该SECAM色度信号可以利用实数部分和虚数部分，并且使用反正切近似生成频率解调色度信号，从而可以简化频率解调器的电路配置以进行定点计算。一种用于恢复色度信号的频率解调器，所述频率解调器包括相位微分器，所述相位微分器基于输入信号产生相邻采样之间的相位差分量;以及相位估计器，基于所生成的相位估计器，所述相位估计器通过使用反正切近似来计算相邻采样之间的相位差相位差分量，其中频率解调器产生频率解调色度信号，相位差对应于色度信号。

2. 发明授权

US08107013B2 Frequency demodulator for recovering SECAM chrominance signal and method thereof 有权
标题翻译：用于恢复SECAM色度信号的频率解调器及其方法
公开(公告)号：US08107013B2
公开(公告)日：2012-01-31
申请号：US11889647
申请日：2007-08-15
申请人： Hyo-Ju Kim , Seong-Won Lee , Do-Gyun Kim , Yun-Sung Wang , Ji-Hoon Jang
发明人： Hyo-Ju Kim , Seong-Won Lee , Do-Gyun Kim , Yun-Sung Wang , Ji-Hoon Jang
IPC分类号： H04N9/66
CPC分类号： H04N11/186
摘要： An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, to a frequency demodulator and method of recovering a SECAM chrominance signal which can utilize both a real number portion and an imaginary number portion, and generate a frequency-demodulated chrominance signal using an arctangent approximation, and thereby can simplify a circuit configuration of a frequency demodulator to perform a fixed-point calculation is provided. A frequency demodulator for recovering a chrominance signal, the frequency demodulator comprises a phase differentiator generating a phase difference component between neighboring samples from an input signal and a phase estimator calculating a phase difference between the neighboring samples by using an arctangent approximation, based on the generated phase difference component, wherein the frequency demodulator generates a frequency-demodulated chrominance signal and the phase difference corresponds to the chrominance signal.
摘要翻译：一种用于利用存储器（SECAM）复合视频基带信号（CVBS）从顺序色彩恢复色度信号的装置，更具体地说，涉及一种频率解调器和恢复SECAM色度信号的方法，该SECAM色度信号可以利用实数部分和虚数部分，并且使用反正切近似生成频率解调色度信号，从而可以简化频率解调器的电路配置以进行定点计算。一种用于恢复色度信号的频率解调器，所述频率解调器包括相位微分器，所述相位微分器基于输入信号产生相邻采样之间的相位差分量;以及相位估计器，基于所生成的相位估计器，所述相位估计器通过使用反正切近似来计算相邻采样之间的相位差相位差分量，其中频率解调器产生频率解调色度信号，相位差对应于色度信号。

3. 发明申请

US20080144958A1 Method for removing noise in image using statistical information and system thereof 有权
标题翻译：使用统计信息及其系统去除图像噪声的方法
公开(公告)号：US20080144958A1
公开(公告)日：2008-06-19
申请号：US11336290
申请日：2006-01-20
申请人： Seong-Won Lee
发明人： Seong-Won Lee
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T5/20 , G06T5/50 , G06T7/20 , G06T2207/20021 , G06T2207/20032 , G06T2207/20076 , G06T2207/20182 , G06T2207/20192
摘要： Disclosed are an image processing method capable of effectively removing noise contained in an image photographed in a low light environment by using statistical information, and a system thereof. There is provided an image processing method for an image consecutively inputted per frame unit, the method comprising: a step of segmenting the image into unit areas comprising a predetermined number of pixels; a first step of dividing each unit area into a low light region or a high light region by using the brightness of image data contained in said each unit area; a second step of outputting statistical information from image data contained in at least one unit area divided into the low light region, and detecting and removing Poisson and photon counting noise on the basis of the statistical information, the statistical information being the mean of the unit area; a third step of detecting a motion pixel from the image data; and a fourth step of detecting and removing false color noise from the image data on the basis of the detected motion pixel and the statistical information.
摘要翻译：公开了一种图像处理方法，其能够通过使用统计信息有效地去除在低光环境下拍摄的图像中包含的噪声，以及其系统。提供了一种用于每帧单位连续输入的图像的图像处理方法，该方法包括：将图像分割成包括预定数量的像素的单位区域的步骤; 通过使用包含在所述每个单位区域中的图像数据的亮度将每个单位区域划分为低光区域或高光区域的第一步骤; 从包含在被划分为低光区域的至少一个单位区域的图像数据中输出统计信息的第二步骤，基于统计信息检测和去除泊松和光子计数噪声，统计信息是该单元的平均值区; 从图像数据检测运动像素的第三步骤; 以及第四步骤，基于检测到的运动像素和统计信息，从图像数据中检测和去除假色噪声。

4. 发明授权

US07956773B2 Method of driving bit stream processor 有权
标题翻译：驱动位流处理器的方法
公开(公告)号：US07956773B2
公开(公告)日：2011-06-07
申请号：US12481748
申请日：2009-06-10
申请人： Se-Wan Heo , Seong-Won Lee , Jung-Hee Suk , Tae-Moon Roh , Jong-Dae Kim
发明人： Se-Wan Heo , Seong-Won Lee , Jung-Hee Suk , Tae-Moon Roh , Jong-Dae Kim
IPC分类号： H03M7/30
CPC分类号： H03M7/40 , H03M7/42
摘要： Provided is a bit stream processor using a reduced table lookup. The bit stream processor includes a bit stream exclusive register in a general purpose register in order to process data of a variable length effectively. Additionally, the bit stream processor an instruction of a table lookup method to which a prefix method is applied and a bit stream exclusive instruction in order to reduce an entire memory size.
摘要翻译：提供了使用减少的表查找的位流处理器。位流处理器在通用寄存器中包括位流专用寄存器，以便有效地处理可变长度的数据。此外，比特流处理器是应用前缀方法的表查找方法的指令和位流独占指令，以便减少整个存储器大小。

5. 发明授权

US5889560A MPEG video decoder 失效
标题翻译： MPEG视频解码器
公开(公告)号：US5889560A
公开(公告)日：1999-03-30
申请号：US731511
申请日：1996-10-15
申请人： Seong-Won Lee
发明人： Seong-Won Lee
IPC分类号： H04N19/423 , G06T9/00 , H03M7/30 , H03M7/40 , H04N7/24 , H04N19/426 , H04N19/436 , H04N19/44 , H04N19/503 , H04N19/60 , H04N19/61 , H04N19/625 , H04N19/91 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/42 , H04N19/61 , H04N19/13 , H04N19/91
摘要： A video decoder that operates according to MPEG (Moving Picture Experts Group) standards. The video decoder includes a parsing stage including inverse quantization and run-length decoding. An inverse transform stage and a compensating stage are then performed. Run-length decoding is performed just prior to the inverse transform stage and after the inverse quantization reducing the total number of pipelines and reducing the number of buffers.
摘要翻译：根据MPEG（运动图像专家组）标准操作的视频解码器。视频解码器包括解码阶段，包括反量化和游程长度解码。然后执行逆变换级和补偿级。在逆变换阶段之前执行运行长度解码，并且在逆量化之后，减少管道总数并减少缓冲器的数量。

6. 发明授权

US07570833B2 Removal of poisson false color noise in low-light images usng time-domain mean and variance measurements 有权
标题翻译：在低照度图像中去除poisson假色噪声，使用时域平均和方差测量
公开(公告)号：US07570833B2
公开(公告)日：2009-08-04
申请号：US11336290
申请日：2006-01-20
申请人： Seong-Won Lee
发明人： Seong-Won Lee
IPC分类号： G06K9/40 , G06F17/10 , H04N5/225
CPC分类号： G06T5/002 , G06T5/20 , G06T5/50 , G06T7/20 , G06T2207/20021 , G06T2207/20032 , G06T2207/20076 , G06T2207/20182 , G06T2207/20192
摘要： Disclosed are an image processing method capable of effectively removing noise contained in an image photographed in a low light environment by using statistical information, and a system thereof. There is provided an image processing method for an image consecutively inputted per frame unit, the method comprising: a step of segmenting the image into unit areas comprising a predetermined number of pixels; a first step of dividing each unit area into a low light region or a high light region by using the brightness of image data contained in said each unit area; a second step of outputting statistical information from image data contained in at least one unit area divided into the low light region, and detecting and removing Poisson and photon counting noise on the basis of the statistical information, the statistical information being the mean of the unit area; a third step of detecting a motion pixel from the image data; and a fourth step of detecting and removing false color noise from the image data on the basis of the detected motion pixel and the statistical information.
摘要翻译：公开了一种图像处理方法，其能够通过使用统计信息有效地去除在低光环境下拍摄的图像中包含的噪声，以及其系统。提供了一种用于每帧单位连续输入的图像的图像处理方法，该方法包括：将图像分割成包括预定数量的像素的单位区域的步骤; 通过使用包含在所述每个单位区域中的图像数据的亮度将每个单位区域划分为低光区域或高光区域的第一步骤; 从包含在被划分为低光区域的至少一个单位区域的图像数据中输出统计信息的第二步骤，基于统计信息检测和去除泊松和光子计数噪声，统计信息是该单元的平均值区; 从图像数据检测运动像素的第三步骤; 以及第四步骤，基于检测到的运动像素和统计信息，从图像数据中检测和去除假色噪声。

7. 发明授权

US6019502A Test circuits and methods for built-in testing integrated devices 失效
标题翻译：用于内置测试集成设备的测试电路和方法
公开(公告)号：US6019502A
公开(公告)日：2000-02-01
申请号：US717695
申请日：1996-09-23
申请人： Sang-Hyeon Baeg , Seong-Won Lee
发明人： Sang-Hyeon Baeg , Seong-Won Lee
IPC分类号： G11C29/00 , G01R31/3185 , G06F11/60
CPC分类号： G01R31/3185
摘要： An test circuit and method for testing an integrated device having an embedded function and a built-in test circuit for testing the embedded function. The built-in test circuit provides control signals to the embedded function based upon an internal state of the built-in test circuit. The integrated device is tested by comparing the control signals provided to the embedded function to the desired control signals based upon the internal state of the built-in self test circuit to confirm the proper operation of the built-in self test circuit. The internal state of the built-in test circuit is monitored and the control signals provided to the embedded function are monitored. The monitored signals are compared to an expected signal pattern based upon the monitored internal state of the built-in test circuit. An error signal is generated if the comparison determines that the monitored control signals do not correspond to the expected signal pattern.
摘要翻译：一种用于测试具有嵌入功能的集成器件和用于测试嵌入式功能的内置测试电路的测试电路和方法。内置测试电路根据内置测试电路的内部状态向嵌入式功能提供控制信号。通过根据内置自检电路的内部状态，将提供给嵌入式功能的控制信号与期望的控制信号进行比较，以确认内置自检电路的正常工作，来测试集成器件。监控内置测试电路的内部状态，监控提供给嵌入式功能的控制信号。基于内置测试电路的监控内部状态，将监视的信号与预期信号模式进行比较。如果比较确定所监视的控制信号不对应于期望的信号模式，则产生误差信号。

8. 发明授权

US5940016A Syntax parser for a MPEG2 video decoder 失效
标题翻译： MPEG2视频解码器的语法解析器
公开(公告)号：US5940016A
公开(公告)日：1999-08-17
申请号：US777675
申请日：1996-12-20
申请人： Seong-Won Lee
发明人： Seong-Won Lee
IPC分类号： H04N7/26 , G06T9/00 , H03M7/40
CPC分类号： G06T9/007
摘要： Disclosed is a syntax parser for a video decoder for MPEG2 and includes: a shift register which executes the shift operation after receiving MPEG video bitstream; a ROM which stores a program decoding variable length and controlling the hardware operation, and outputs the micro-instruction according to an address; a counter which controls the address of the ROM; a register which stores parameters for decoding MPEG video; a flag controller which generates the flag from a particular code included in the bitstream or the combination of parameters, and outputs the flag; a memory which stores the table related to variable length decoding; and a length controller which gets length information to be shifted from the memory, the micro-instruction or the output of the register. The syntax parser for a MPEG2 video decoder can execute VLD and parse the MPEG bitstream. Using micro-instructions to perform the parsing function decreases the decoding time for the bitstream and obtains the parsing speed corresponding to the MP@HL of the HDTV (high definition television) standard.
摘要翻译：公开了一种用于MPEG2的视频解码器的语法解析器，包括：移位寄存器，其在接收MPEG视频比特流之后执行移位操作; 存储程序解码可变长度并控制硬件操作的ROM，并根据地址输出微指令; 控制ROM地址的计数器; 存储用于解码MPEG视频的参数的寄存器; 标志控制器，其从包括在比特流中的特定代码或参数的组合生成标志，并输出该标志; 存储与可变长度解码相关的表的存储器; 以及长度控制器，其获取要从存储器移位的长度信息，微指令或寄存器的输出。 MPEG2视频解码器的语法解析器可以执行VLD并解析MPEG比特流。使用微指令执行解析功能可减少比特流的解码时间，并获得与HDTV（高分辨率电视）标准的MP @ HL对应的解析速度。

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