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1. 发明申请

US20010043283A1 Feed forward error correction in video decoder 有权
标题翻译：视频解码器中的前馈纠错
公开(公告)号：US20010043283A1
公开(公告)日：2001-11-22
申请号：US09849330
申请日：2001-05-04
发明人： Karl Renner
IPC分类号： H04N009/455 , H03L007/00
CPC分类号： H03L7/07 , H03L7/0805 , H03L7/0994 , H04N5/126 , H04N9/45
摘要： In accordance with an embodiment of the present invention a microprocessor in the horizontal phased lock loop reads the horizontal timing with respect to the sync input and provides an increment inc h to the horizontal discrete time oscillator to make corrections in its timing to maintain lock to the sync input. The horizontal discrete time oscillator output is used to produce a pixel clock which drives the color discrete time oscillator in a color phased locked loop. A microprocessor reads a phase error between the color burst input and the color local oscillator frequency and writes an increment inc sc to the color discrete time oscillator to maintain lock to the color burst. The horizontal phase locked loop adjusts inch that varies about nominal increment (nom_inch) by nullh. The feed forward error correction for the adjustment to the color discrete time oscillator is the nonimal increment (nom_incsc) and a feed forwarded scaled version of nullh.
摘要翻译：根据本发明的实施例，水平定相锁定环中的微处理器读取相对于同步输入的水平定时，并且向水平离散时间振荡器提供增量inc h，以便对其定时进行修正以保持锁定到同步输入水平离散时间振荡器输出用于产生在彩色锁相环中驱动彩色离散时间振荡器的像素时钟。微处理器读出色同步输入和彩色本地振荡器频率之间的相位误差，并将增量inc写入颜色离散时间振荡器以保持锁定到色同步。水平锁相环通过DELTAh调整大小与标称增量（nom_inch）不等的英寸。用于调整色彩离散时间振荡器的前馈误差校正是DELTAh的非最大增量（nom_incsc）和馈送转发缩放版本。

2. 发明申请

US20020047924A1 METHOD AND APPARATUS FOR RECOVERING VIDEO COLOR SUBCARRIER SIGNAL 失效
标题翻译：用于恢复视频彩色辅助信号的方法和装置
公开(公告)号：US20020047924A1
公开(公告)日：2002-04-25
申请号：US08918280
申请日：1997-08-25
发明人： SAMSON HUANG
IPC分类号： H04N009/455 , H04N017/02
CPC分类号： H04N9/45
摘要： An embodiment of the present invention provides a signal generator for generating a signal with a predetermined frequency. The signal generator includes a first comparator for generating a first error signal and a second comparator for generating a second error signal. The first and second comparators are coupled to an oscillator configured to receive the first and second error signals and generate the signal having a predetermined frequency. Another embodiment of the present invention provides a signal generator for generating a signal with a predetermined frequency. The signal generator includes a counter for generating a first count, Q_last. The counter is coupled to a ratio counter which generates a signal having a value less than or equal to Q_last. The contents of the ratio counter represent the phase of the signal having a predetermined frequency. The ratio counter outputs the signal having a predetermined frequency.
摘要翻译：本发明的实施例提供一种用于产生具有预定频率的信号的信号发生器。信号发生器包括用于产生第一误差信号的第一比较器和用于产生第二误差信号的第二比较器。第一和第二比较器耦合到被配置为接收第一和第二误差信号并产生具有预定频率的信号的振荡器。本发明的另一实施例提供一种用于产生具有预定频率的信号的信号发生器。信号发生器包括用于产生第一计数Q_last的计数器。计数器耦合到产生具有小于或等于Q_last的值的信号的比率计数器。比率计数器的内容表示具有预定频率的信号的相位。比率计数器输出具有预定频率的信号。

3. 发明申请

US20040075767A1 A/V system and method supporting a pull data flow scheme 有权
标题翻译：支持拉数据流方案的A / V系统和方法
公开(公告)号：US20040075767A1
公开(公告)日：2004-04-22
申请号：US10300234
申请日：2002-11-20
发明人： Darren Neuman , Brian Schoner
IPC分类号： H04N009/45 , H04N009/455
CPC分类号： H04N21/4305 , H04N5/4401 , H04N5/50 , H04N21/4263 , H04N21/4316
摘要： Systems and methods are disclosed for supporting a pull data flow scheme in an A/V decoder. One method relates to processing data using an A/V decoder comprising receiving the data from a data stream and recovering a system time reference from the received data. The received data is processed using a clock asynchronous to the system time reference and pulled into an output device using a system adapted to support a pull data flow. The processed data is output using a time reference locked to the system time reference.
摘要翻译：公开了用于支持A / V解码器中的拉数据流方案的系统和方法。一种方法涉及使用A / V解码器处理数据，包括从数据流接收数据并从接收到的数据中恢复系统时间参考。使用与系统时间参考异步的时钟处理接收的数据，并使用适于支持拉数据流的系统将其拉入输出设备。使用锁定到系统时间参考的时间基准输出处理后的数据。

4. 发明申请

US20030169371A1 Memory transfer controller and method of transfer control of video line data and macroblock data 有权
标题翻译：存储器传输控制器和视频行数据和宏块数据的传输控制方法
公开(公告)号：US20030169371A1
公开(公告)日：2003-09-11
申请号：US10356719
申请日：2003-01-30
申请人： STMicroelectronics Asia Pacific Pte. Ltd.
发明人： Patricia Wei Yin Chiang , Lucas Y.W. Hui
IPC分类号： H04N009/455
CPC分类号： H04N19/423 , H04N19/61
摘要： A method of transferring sets of video line data and macroblock data, comprising the steps of determining a macroblock period and a video line period longer than the macroblock period, dividing each set of video line data to be transferred within the video line period into two or more portions according to the difference between the determined macroblock period and video line period, aligning a burst transfer of each of the portions of the divided set of video line data and each set of macroblock data to the macroblock period, and initiating the burst transfer of the sets of video line data and macroblock data at macroblock period intervals.
摘要翻译：一种传输视频行数据和宏块数据集的方法，包括以下步骤：确定比宏块周期长的宏块周期和视频行周期，将在视频行周期内传送的每组视频行数据划分成两个或根据所确定的宏块周期和视频行周期之间的差异来更多部分，将分割的视频行数据集合的每个部分的突发传送与每个宏块数据集对齐到宏块周期，并且发起突发传送在宏块周期间隔的视频行数据和宏块数据集合。

5. 发明申请

US20020063796A1 Controlling the system time clock of an MPEG decoder 失效
标题翻译：控制MPEG解码器的系统时钟
公开(公告)号：US20020063796A1
公开(公告)日：2002-05-30
申请号：US09993699
申请日：2001-11-27
发明人： Kyung Pa Min
IPC分类号： H04N009/455 , H04N005/45 , H04N005/05
CPC分类号： H04N5/04 , G06T9/007 , H04N5/126 , H04N5/4401 , H04N21/4305
摘要： During decoding and processing of program clock reference (PCR) values in MPEG-2 transport streams, a first initial difference value is obtained by calculating a difference between a first detected PCR value and a system time clock (STC) value generated when the first PCR value is detected. Depending on the update status of the PCR values, a second initial difference value is obtained by calculating a difference between a second detected PCR value and a STC value generated when the second PCR value is detected. Thereafter, a composite difference value is obtained by further calculating a difference between the first initial difference value and the second initial difference value. Subsequently, the first and second initial difference values, and the composite difference values are calculated for a predetermined number of detected PCR values so that the decoder clock signal is generated and maintained at approximately the same frequency as an encoder clock signal.
摘要翻译：在解码和处理MPEG-2传输流中的程序时钟参考（PCR）值时，通过计算第一个检测到的PCR值和当第一个PCR产生的系统时间时钟（STC）值之间的差异来获得第一个初始差异值检测到值。根据PCR值的更新状态，通过计算检测到第二PCR值时产生的第二检测PCR值和STC值之间的差异，得到第二初始差值。此后，通过进一步计算第一初始差值和第二初始差值之间的差来获得复合差分值。随后，针对预定数量的检测到的PCR值计算第一和第二初始差分值以及复合差分值，使得解码器时钟信号被产生并保持在与编码器时钟信号大致相同的频率。

6. 发明申请

US20040239805A1 Photographic and video image system 审中-公开
公开(公告)号：US20040239805A1
公开(公告)日：2004-12-02
申请号：US10882051
申请日：2004-06-30
申请人： Sony Corporation
发明人： Takahiko Saito , Akira Nakanishi , Shunzi Obayashi , Hideki Toshikage
IPC分类号： H04N009/455
CPC分类号： H04N1/0458 , G03B1/50 , G03B17/24 , G03B17/245 , G03B17/48 , G03B27/462 , G03B27/6285 , G03B2206/004 , G03B2206/006 , G03B2217/243 , G03B2217/244 , G03B2217/246 , G03B2217/247 , G03B2217/248 , H04N1/00127 , H04N1/00129 , H04N1/00143 , H04N1/00249 , H04N1/00265 , H04N1/00267 , H04N1/0027 , H04N1/0402 , H04N1/0405 , H04N1/1017 , H04N1/193 , H04N1/195 , H04N1/32133 , H04N2201/0055 , H04N2201/0075 , H04N2201/0081 , H04N2201/0404 , H04N2201/0408 , H04N2201/3225 , H04N2201/3226 , H04N2201/3242 , H04N2201/3243 , H04N2201/3254 , H04N2201/3277
摘要： A photographic and video image system for transforming an image on a frame of a photographic film includes a structure in the overall form of a photographic printer having an image transformation element that transforms an optical image from the film into a video signal, a frame position indicator, which can be a hole or an optical or magnetic signal, is recorded on the film along with aspect information relating to the size of the frame exposed on the film. The frame position indicator and aspect information are detected and used to control a film feeding operation and the optical image to video signal transformation operation. The user of the system can record order information on the film that is used to specify the aspect of the resultant photographic print, as well as the quantity of prints to be made. Such order information can be superimposed as a menu on a displayed video signal at the time the video signal is reviewed prior to producing a photographic print.

7. 发明申请

US20040174461A1 Method for obtaining line synchronization information items from a video signal, and apparatus for carrying out the method 有权
标题翻译：用于从视频信号获取行同步信息项的方法，以及用于执行该方法的装置
公开(公告)号：US20040174461A1
公开(公告)日：2004-09-09
申请号：US10483033
申请日：2004-01-06
发明人： Albrecht Rothermel , Roland Lares
IPC分类号： H04N005/06 , H04N009/45 , H04N009/455
CPC分类号： H04N5/10
摘要： A method for obtaining line synchronization information items from a video signal is proposed. The inventive method is based on convolving the relevant part of an analogue video line signal with a pattern function. The result of the convolution operation is further processed to determine the time instants of the occurrence of the horizontal sync signals. The time instants are subsequently filtered to generate horizontal pulses. A video line memory allows to utilize subsequent horizontal sync signals for calculating the horizontal sync pulse of a current video line. The invention also relates to an apparatus for carrying out the method.
摘要翻译：提出了一种从视频信号中获取行同步信息项的方法。本发明的方法是基于将模拟视频线信号的相关部分与模式函数进行卷积。进一步处理卷积运算的结果，以确定水平同步信号的发生的时刻。随后对时刻进行滤波以产生水平脉冲。视频行存储器允许利用随后的水平同步信号来计算当前视频行的水平同步脉冲。本发明还涉及一种用于执行该方法的装置。

8. 发明申请

US20030223014A1 Apparatus and method for compensating a color carrier of an image signal 失效
标题翻译：用于补偿图像信号的彩色载体的装置和方法
公开(公告)号：US20030223014A1
公开(公告)日：2003-12-04
申请号：US10429826
申请日：2003-05-06
申请人： Samsung Electronics Co., Ltd.
发明人： Hak Jae Kim
IPC分类号： H04N009/455
CPC分类号： H04N9/455
摘要： An apparatus to compensate a color carrier in an image processing system to convert an input analog image signal into a digital image signal includes a detector, a phase-locked loop unit, a difference detector, and a color signal processor. The detector detects a frequency of the color carrier in a color signal of the digital image signal. The phase-locked loop unit generates a subcarrier frequency by performing a phase-locked loop operation on a system clock signal applied to the image processing system. The difference detector detects a difference between the frequency of the color carrier and the subcarrier frequency. The color signal processor compensates for a phase deviation of the color carrier of the color signal using the subcarrier frequency generated by the phase-locked loop unit.
摘要翻译：一种用于补偿图像处理系统中的彩色载体以将输入的模拟图像信号转换为数字图像信号的装置包括检测器，锁相环单元，差分检测器和彩色信号处理器。检测器检测数字图像信号的彩色信号中的色彩载体的频率。锁相环单元通过对施加到图像处理系统的系统时钟信号执行锁相环操作来产生副载波频率。差分检测器检测彩色载波的频率与副载波频率之间的差异。彩色信号处理器使用由锁相环单元产生的副载波频率补偿彩色信号的色彩载波的相位偏差。

9. 发明申请

US20020036708A1 Synchronous signal generation circuit and synchronous signal generation method 失效
标题翻译：同步信号发生电路和同步信号产生方法
公开(公告)号：US20020036708A1
公开(公告)日：2002-03-28
申请号：US09965203
申请日：2001-09-27
申请人： NEC Corporation
发明人： Masashi Horita
IPC分类号： H04N009/455 , H04N005/45
CPC分类号： H04N5/123 , G09G5/12 , H04N5/126
摘要： A first counter counts a first clock signal repeatedly in accordance with an external synchronous signal. A second counter counts a second clock signal repeatedly in every predetermined cycle, and generates an internal synchronous signal having the predetermined cycle. A controller adjusts the cycle of counting performed by the second counter by controlling the second counter. By doing so, the controller controls the internal synchronous signal to synchronize with the external synchronous signal in each horizontal period.
摘要翻译：第一计数器根据外部同步信号重复计数第一时钟信号。第二计数器在每个预定周期中重复计数第二时钟信号，并产生具有预定周期的内部同步信号。控制器通过控制第二计数器来调节由第二计数器执行的计数循环。通过这样做，控制器在每个水平周期内控制内部同步信号与外部同步信号同步。

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