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1. 发明授权

US07496699B2 DMA descriptor queue read and cache write pointer arrangement 有权
标题翻译： DMA描述符队列读取和缓存写入指针排列
公开(公告)号：US07496699B2
公开(公告)日：2009-02-24
申请号：US11156228
申请日：2005-06-17
申请人： Steve L. Pope , Derek Roberts , David Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
发明人： Steve L. Pope , Derek Roberts , David Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
IPC分类号： G06F3/00 , G06F13/28 , G06F12/00
CPC分类号： H04L49/901 , G06F13/28 , G06F13/385 , H04L49/90
摘要： Method and apparatus for retrieving buffer descriptors from a host memory for use by a peripheral device. In an embodiment, a peripheral device such as a NIC includes a plurality of buffer descriptor caches each corresponding to a respective one of a plurality of host memory descriptor queues, and a plurality of queue descriptors each corresponding to a respective one of the host memory descriptor queues. Each of the queue descriptors includes a host memory read address pointer for the corresponding descriptor queue, and this same read pointer is used to derive algorithmically the descriptor cache write addresses at which to write buffer descriptors retrieved from the corresponding host memory descriptor queue.
摘要翻译：用于从主机存储器检索缓冲器描述符以供外围设备使用的方法和装置。在一个实施例中，诸如NIC的外围设备包括多个缓冲区描述符缓存，每个对应于多个主机存储器描述符队列中的相应一个的多个缓冲区描述符缓存，以及多个队列描述符，每个对应于主机存储器描述符队列每个队列描述符包括用于对应的描述符队列的主机存储器读地址指针，并且该相同的读指针用于从算法上导出描述符高速缓存写地址，在该地址处写入从相应主机存储器描述符队列检索的缓冲器描述符。

2. 发明授权

US08959095B2 Hashing algorithm for network receive filtering 有权
标题翻译：用于网络接收过滤的哈希算法
公开(公告)号：US08959095B2
公开(公告)日：2015-02-17
申请号：US13162421
申请日：2011-06-16
申请人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
发明人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
IPC分类号： G06F17/30 , H04L12/747 , H04L12/741 , H04L12/861 , H04L29/06 , H04L12/851 , H04L12/863
CPC分类号： G06F17/30867 , G06F17/30864 , H04L45/742 , H04L45/745 , H04L47/2441 , H04L47/621 , H04L49/90 , H04L67/10 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/163 , H04L69/164 , H04L69/22 , Y10S707/922
摘要： Roughly described, a network interface device is assigned a maximum extent-of-search. A hash function is applied to the header information of each incoming packet, to generate a hash code for the packet. The hash code designates a particular subset of the table within which the particular header information should be found, and an iterative search is made within that subset. If the search locates a matching entry before the search limit is exceeded, then the incoming data packet is delivered to the receive queue identified in the matching entry. But if the search reaches the search limit before a matching entry is located, then device delivers the packet to a default queue, such as a kernel queue, in the host computer system. The kernel is then responsible for delivering the packet to the correct endpoint.
摘要翻译：大致描述了网络接口设备被分配最大的搜索范围。散列函数被应用于每个输入分组的报头信息，以产生分组的哈希码。哈希代码指定在其中应当找到特定头部信息的表的特定子集，并且在该子集内进行迭代搜索。如果搜索在超出搜索限制之前找到匹配的条目，则传入数据包将被传递到匹配条目中标识的接收队列。但是，如果在找到匹配的条目之前搜索达到搜索限制，则设备会将数据包传递到主机系统中的默认队列（如内核队列）。然后，内核负责将数据包传递到正确的端点。

3. 发明申请

US20110246489A1 HASHING ALGORITHM FOR NETWORK RECEIVE FILTERING 有权
标题翻译：用于网络接收过滤的垃圾算法
公开(公告)号：US20110246489A1
公开(公告)日：2011-10-06
申请号：US13162421
申请日：2011-06-16
申请人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
发明人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
IPC分类号： G06F17/30
CPC分类号： G06F17/30867 , G06F17/30864 , H04L45/742 , H04L45/745 , H04L47/2441 , H04L47/621 , H04L49/90 , H04L67/10 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/163 , H04L69/164 , H04L69/22 , Y10S707/922
摘要： Roughly described, a network interface device is assigned a maximum extent-of-search. A hash function is applied to the header information of each incoming packet, to generate a hash code for the packet. The hash code designates a particular subset of the table within which the particular header information should be found, and an iterative search is made within that subset. If the search locates a matching entry before the search limit is exceeded, then the incoming data packet is delivered to the receive queue identified in the matching entry. But if the search reaches the search limit before a matching entry is located, then device delivers the packet to a default queue, such as a kernel queue, in the host computer system. The kernel is then responsible for delivering the packet to the correct endpoint.
摘要翻译：大致描述了网络接口设备被分配最大的搜索范围。散列函数被应用于每个输入分组的报头信息，以产生分组的哈希码。哈希代码指定在其中应当找到特定头部信息的表的特定子集，并且在该子集内进行迭代搜索。如果搜索在超出搜索限制之前找到匹配的条目，则传入数据包将被传递到匹配条目中标识的接收队列。但是，如果在找到匹配的条目之前搜索达到搜索限制，则设备会将数据包传递到主机系统中的默认队列（如内核队列）。然后，内核负责将数据包传递到正确的端点。

4. 发明授权

US07984180B2 Hashing algorithm for network receive filtering 有权
标题翻译：用于网络接收过滤的哈希算法
公开(公告)号：US07984180B2
公开(公告)日：2011-07-19
申请号：US11255124
申请日：2005-10-20
申请人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
发明人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
IPC分类号： H04L12/56
CPC分类号： G06F17/30867 , G06F17/30864 , H04L45/742 , H04L45/745 , H04L47/2441 , H04L47/621 , H04L49/90 , H04L67/10 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/163 , H04L69/164 , H04L69/22 , Y10S707/922
摘要： Roughly described, a network interface device is assigned a maximum extent-of-search. A hash function is applied to the header information of each incoming packet, to generate a hash code for the packet. The hash code designates a particular subset of the table within which the particular header information should be found, and an iterative search is made within that subset. If the search locates a matching entry before the search limit is exceeded, then the incoming data packet is delivered to the receive queue identified in the matching entry. But if the search reaches the search limit before a matching entry is located, then device delivers the packet to a default queue, such as a kernel queue, in the host computer system. The kernel is then responsible for delivering the packet to the correct endpoint.
摘要翻译：大致描述了网络接口设备被分配最大的搜索范围。散列函数被应用于每个输入分组的报头信息，以产生分组的哈希码。哈希代码指定在其中应当找到特定头部信息的表的特定子集，并且在该子集内进行迭代搜索。如果搜索在超出搜索限制之前找到匹配的条目，则传入数据包将被传递到匹配条目中标识的接收队列。但是，如果在找到匹配的条目之前搜索达到搜索限制，则设备会将数据包传递到主机系统中的默认队列（如内核队列）。然后，内核负责将数据包传递到正确的端点。

5. 发明申请

US20060288129A1 DMA descriptor queue read and cache write pointer arrangement 有权
公开(公告)号：US20060288129A1
公开(公告)日：2006-12-21
申请号：US11156228
申请日：2005-06-17
申请人： Steve Pope , Derek Roberts , David Riddoch , Ching Yu , John Chiang , Der-Ren Chu
发明人： Steve Pope , Derek Roberts , David Riddoch , Ching Yu , John Chiang , Der-Ren Chu
IPC分类号： G06F13/28
CPC分类号： H04L49/901 , G06F13/28 , G06F13/385 , H04L49/90
摘要： Method and apparatus for retrieving buffer descriptors from a host memory for use by a peripheral device. In an embodiment, a peripheral device such as a NIC includes a plurality of buffer descriptor caches each corresponding to a respective one of a plurality of host memory descriptor queues, and a plurality of queue descriptors each corresponding to a respective one of the host memory descriptor queues. Each of the queue descriptors includes a host memory read address pointer for the corresponding descriptor queue, and this same read pointer is used to derive algorithmically the descriptor cache write addresses at which to write buffer descriptors retrieved from the corresponding host memory descriptor queue.

6. 发明申请

US20070115982A1 Hashing algorithm for network receive filtering 有权
标题翻译：用于网络接收过滤的哈希算法
公开(公告)号：US20070115982A1
公开(公告)日：2007-05-24
申请号：US11255124
申请日：2005-10-20
申请人： Steve Pope , Derek Roberts , David Riddoch , Ching Yu , John Chiang , Der-Ren Chu
发明人： Steve Pope , Derek Roberts , David Riddoch , Ching Yu , John Chiang , Der-Ren Chu
IPC分类号： H04L12/56
CPC分类号： G06F17/30867 , G06F17/30864 , H04L45/742 , H04L45/745 , H04L47/2441 , H04L47/621 , H04L49/90 , H04L67/10 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/163 , H04L69/164 , H04L69/22 , Y10S707/922
摘要： Roughly described, a network interface device is assigned a maximum extent-of-search. A hash function is applied to the header information of each incoming packet, to generate a hash code for the packet. The hash code designates a particular subset of the table within which the particular header information should be found, and an iterative search is made within that subset. If the search locates a matching entry before the search limit is exceeded, then the incoming data packet is delivered to the receive queue identified in the matching entry. But if the search reaches the search limit before a matching entry is located, then device delivers the packet to a default queue, such as a kernel queue, in the host computer system. The kernel is then responsible for delivering the packet to the correct endpoint.
摘要翻译：大致描述了网络接口设备被分配最大的搜索范围。散列函数被应用于每个输入分组的报头信息，以产生分组的哈希码。哈希代码指定在其中应当找到特定头部信息的表的特定子集，并且在该子集内进行迭代搜索。如果搜索在超出搜索限制之前找到匹配的条目，则传入数据包将被传递到匹配条目中标识的接收队列。但是，如果在找到匹配的条目之前搜索达到搜索限制，则设备会将数据包传递到主机系统中的默认队列（如内核队列）。然后，内核负责将数据包传递到正确的端点。

7. 发明授权

US06509932B1 Method and apparatus for providing audio in a digital video system 失效
标题翻译：用于在数字视频系统中提供音频的方法和装置
公开(公告)号：US06509932B1
公开(公告)日：2003-01-21
申请号：US09410445
申请日：1999-10-01
申请人： Der-Ren Chu , Ren-Yuh Wang
发明人： Der-Ren Chu , Ren-Yuh Wang
IPC分类号： H04N964
CPC分类号： H04N5/9267 , H04N5/9264
摘要： A method and apparatus for providing audio in a digital video system. Equations for a value n are provided for replacement into the conventional audio data shuffling equations. The equations for the value n provide for simple, efficient techniques to, in turn, calculate values for track number (TK), block number (BK), and data position number (DP). The values TK, BK, DP can be used in an address generation scheme to generate a page value and an offset value. The page value and the offset value for a particular sample of digital audio data, in part, determine the location of the sample in a memory storing the digital audio data. The present invention can be implemented for both four channel and two channel modes under both the NTSC and the PAL standards in accordance with specifications set forth in the Digital Video Standard (the “Blue Book”).
摘要翻译：一种用于在数字视频系统中提供音频的方法和装置。提供值n的等式用于替换为常规音频数据混洗方程。值n的方程式提供了简单有效的技术，进而计算轨道号（TK），块号（BK）和数据位置编号（DP）的值。值TK，BK，DP可用于地址生成方案中以生成页值和偏移值。数字音频数据的特定样本的页面值和偏移值部分地确定样本在存储数字音频数据的存储器中的位置。根据数字视频标准（“蓝皮书”）中规定的规范，本发明可以在NTSC和PAL标准两者下实现四通道和双通道模式。

8. 发明授权

US06353685B1 Method and apparatus for image compression 失效
标题翻译：图像压缩方法和装置
公开(公告)号：US06353685B1
公开(公告)日：2002-03-05
申请号：US09386251
申请日：1999-08-31
申请人： Tony Hung-Yao Wu , Wei-Chun Lee , Chia-Hung Chen , Der-Ren Chu , Sophia Wei-Chun Kao , Kang-Huai Wang , Ren-Yuh Wang
发明人： Tony Hung-Yao Wu , Wei-Chun Lee , Chia-Hung Chen , Der-Ren Chu , Sophia Wei-Chun Kao , Kang-Huai Wang , Ren-Yuh Wang
IPC分类号： G06K946
CPC分类号： G06T9/007
摘要： An image compression apparatus for compressing image data provided to an input terminal and providing compressed data to an output terminal includes a 4×4 weighted digital cosine transformer (DCT) coupled to the input terminal and configured to convert the image data into weighted frequency data. A zigzag circuit is coupled to the DCT and configured to zigzag process the frequency data and generate create zigzag data. A Q-factor estimator is coupled to the DCT and configured to estimate the frequency data and generate a Q-factor. A DC coding circuit is coupled to the zigzag circuit and configured to code the zigzag data and generate a DC code. A quantization circuit is coupled to the zigzag circuit and the Q-factor estimator and configured to quantize the zigzag data based on the Q-factor and generate quantized data. A run-length coding circuit coupled to the DC coding circuit and the quantization circuit and configured to encode the quantized data to create variable length data as the compressed data to the output terminal. In this manner, the original image is compressed. While the invention is described with reference to specific hardware, the invention can also be implemented in software employing the functions as described herein. Advantages of the present invention include an image compression technique that is both fast and efficient. Additionally, the invention provides a fast and efficient image compression technique that can be applied to moving images.
摘要翻译：用于压缩提供给输入端的图像数据并向输出端提供压缩数据的图像压缩装置包括耦合到输入端并被配置为将图像数据转换成加权频率数据的4×4加权数字余弦变换器（DCT）。锯齿形电路耦合到DCT并且被配置为之字形处理频率数据并生成创建曲折数据。 Q因子估计器耦合到DCT并且被配置为估计频率数据并产生Q因子。 DC编码电路耦合到Z字形电路并且被配置为对Z形数据进行编码并生成DC代码。量化电路耦合到Z字形电路和Q因子估计器，并且被配置为基于Q因子量化Z字形数据并产生量化数据。一种游程长度编码电路，其耦合到DC编码电路和量化电路，并且被配置为对量化的数据进行编码，以将可变长度数据作为压缩数据创建到输出端子。以这种方式，原始图像被压缩。尽管参考特定硬件描述了本发明，但是本发明也可以采用如本文所述的功能的软件来实现。本发明的优点包括快速有效的图像压缩技术。此外，本发明提供了可以应用于运动图像的快速且高效的图像压缩技术。

9. 发明授权

US06774943B1 Method and apparatus for edge enhancement in digital images 有权
标题翻译：数字图像边缘增强的方法和装置
公开(公告)号：US06774943B1
公开(公告)日：2004-08-10
申请号：US09386256
申请日：1999-08-31
申请人： Sophia Wei-Chun Kao , Der-Ren Chu , Ren-Yuh Wang
发明人： Sophia Wei-Chun Kao , Der-Ren Chu , Ren-Yuh Wang
IPC分类号： H04N5208
CPC分类号： H04N9/045 , H04N5/208 , H04N9/646 , H04N11/20
摘要： An apparatus for edge enhancement of a digital image provided as raw digital image data to an input terminal and for providing processed image data to an output terminal. An offset processing circuit is coupled to the input terminal and configured to receive the raw data and generate offset data. An interpolation circuit is coupled to the offset processing circuit and configured to receive the offset data and to provide interpolated data. A color processing circuit is coupled to the interpolation circuit and configured to process the interpolated data to generate color data. An edge enhancement circuit is coupled to the interpolation circuit and the color processing circuit and configured to enhance the edges of the image based on the interpolated data and the color data to generate enhanced data. A lookup table is coupled to the color processing circuit and the edge enhancement circuit and configured to lookup the color data and the enhanced data to generate lookup data. A conversion circuit is coupled to the lookup table circuit and configured to convert the lookup data to generate the processed image data to the output terminal. In one aspect of the invention the processing is performed with RGB data, and in another aspect of the invention the processing is performed with YUV data. In another embodiment of the invention the edge enhancement circuit includes an edge extraction circuit, a cut-off level adjustment circuit and an edge gain scaling circuit. These circuits are used to define the edge of objects in the image and to enhance their respective edges. Advantages of the present invention include correctly locating object edges, and avoiding artifacts when the edges are enhanced. Consequently, the invention provides an improved image edge enhancement technique over conventional edge processors.
摘要翻译：一种用于将作为原始数字图像数据提供给数字图像的边缘增强的装置，用于向输入端子提供处理的图像数据到输出端子。偏移处理电路耦合到输入端并被配置为接收原始数据并产生偏移数据。内插电路耦合到偏移处理电路并且被配置为接收偏移数据并提供内插数据。颜色处理电路耦合到内插电路并且被配置为处理内插数据以生成颜色数据。边缘增强电路耦合到内插电路和颜色处理电路，并且被配置为基于内插数据和颜色数据来增强图像的边缘以生成增强数据。查找表耦合到颜色处理电路和边缘增强电路，并且被配置为查找颜色数据和增强数据以生成查找数据。转换电路耦合到查找表电路并且被配置为转换查找数据以将经处理的图像数据生成到输出终端。在本发明的一个方面，用RGB数据进行处理，在本发明的另一方面，用YUV数据进行处理。在本发明的另一个实施例中，边缘增强电路包括边缘提取电路，截止电平调整电路和边缘增益缩放电路。这些电路用于定义图像中物体的边缘并增强其各自的边缘。本发明的优点包括正确定位物体边缘，并且当边缘增强时避免伪影。因此，本发明提供了相对于常规边缘处理器的改进的图像边缘增强技术。

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