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1. 发明授权

US06590931B1 Reconfigurable FIR filter using CSD coefficient representation 失效
标题翻译：使用CSD系数表示的可重构FIR滤波器
公开(公告)号：US06590931B1
公开(公告)日：2003-07-08
申请号：US09456688
申请日：1999-12-09
申请人： Karl Wittig
发明人： Karl Wittig
IPC分类号： H03H2100
CPC分类号： H03H17/0294 , H03H17/0225 , H03H17/06
摘要： The present invention is directed to a reconfigurable finite impulse response (FIR) filter that processes data tap values with canonical sign digit (CSD) coefficients. The FIR filter according to the present invention includes a shift group associated with at least one of the data tap values and at least one of the CSD coefficients. Each shift group includes a plurality of parallel paths. Each parallel path shifts the data tap value according to a bit pair of the coefficient to produce a weighted product. An adder is also included that combines the weighted products from each of the shift groups.
摘要翻译：本发明涉及用规范符号数（CSD）系数处理数据抽头值的可重构有限脉冲响应（FIR）滤波器。根据本发明的FIR滤波器包括与数据抽头值和CSD系数中的至少一个相关联的移位组。每个移位组包括多个并行路径。每个并行路径根据系数的位对来移动数据抽头值，以产生加权乘积。还包括加法器，其组合来自每个班组的加权乘积。

2. 发明授权

US6108681A System for sharing resources in a digital filter 失效
标题翻译：用于在数字滤波器中共享资源的系统
公开(公告)号：US6108681A
公开(公告)日：2000-08-22
申请号：US31698
申请日：1998-02-27
申请人： Karl Wittig , Gene Turkenich
发明人： Karl Wittig , Gene Turkenich
IPC分类号： H03H21/00 , H03H17/02 , H03H17/06 , G06F17/10
CPC分类号： H03H17/0294 , H03H17/0225 , H03H17/0292 , H03H2218/085
摘要： A digital filter has a filter cell for generating processed data. The digital filter cell includes plurality of coefficient registers which are arranged to circulate a plurality of coefficient values that correspond to a plurality of coefficients such that each of the plurality of coefficients is output once during a predetermined period. One or more data registers are arranged to circulate a data value for a time which is at least as long as the predetermined period such that the data value is output each time that a different one of the plurality of coefficients is output. A circuit receives each output data value and each output coefficient and generates processed data by processing each output data value with each output coefficient.
摘要翻译：数字滤波器具有用于产生处理数据的滤波器单元。数字滤波器单元包括多个系数寄存器，其被布置为循环多个系数值，所述多个系数值对应于多个系数，使得在预定周期期间多个系数中的每一个系数被输出一次。布置一个或多个数据寄存器以使数据值循环至少等于预定周期的时间，使得每次输出多个系数中的不同系数时输出数据值。电路接收每个输出数据值和每个输出系数，并通过用每个输出系数处理每个输出数据值来产生处理数据。

3. 发明授权

US5532744A Method and apparatus for decoding digital video using parallel processing 失效
标题翻译：使用并行处理对数字视频进行解码的方法和装置
公开(公告)号：US5532744A
公开(公告)日：1996-07-02
申请号：US294124
申请日：1994-08-22
申请人： Olu Akiwumi-Assani , Carlo Basile , Alan Cavallerano , Kiran Challapali , Richard Shen , Karl Wittig
发明人： Olu Akiwumi-Assani , Carlo Basile , Alan Cavallerano , Kiran Challapali , Richard Shen , Karl Wittig
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/436 , H04N19/61 , H04N19/30
摘要： A method and decoder for decoding a hierarchically coded digital video bitstream which can process a high resolution television picture in real time and which is made, up of a number of individual decoder modules, connected in parallel, which each have less real time processing power than is necessary, but which when combined, have at least the necessary processing power needed to process the bitstream in real time. The decoder includes a system controller which detects the hierarchical code indicating bits and slices and communicates this information to a slice parser which dynamically allocates the bitstream among the digital modules as needed on a per slice basis.
摘要翻译：一种分层编码的数字视频比特流的解码方法和解码器，其可以实时处理高分辨率电视图像，并且由并行连接的多个单独的解码器模块构成，每个解码器模块的实时处理能力都比是必要的，但是当组合时，至少具有实时处理比特流所需的必要处理能力。解码器包括系统控制器，其检测指示比特和片段的分层代码，并将该信息传送到片分析器，根据需要在每个片基的基础上动态地分配数字模块中的比特流。

4. 发明授权

US4999701A High definition NTSC compatible television system with increased horizontal bandwidth and reduced color artifacts 失效
标题翻译：高清晰NTSC兼容电视系统，具有增加的水平带宽和减少的色彩伪影
公开(公告)号：US4999701A
公开(公告)日：1991-03-12
申请号：US377780
申请日：1989-07-10
申请人： Alan P. Cavallerano , Mikhail Tsinberg , Karl Wittig
发明人： Alan P. Cavallerano , Mikhail Tsinberg , Karl Wittig
IPC分类号： H04N11/14 , H04N11/24
CPC分类号： H04N11/004 , H04N11/14
摘要： A system for generating high definition television signals. An augmentation signal is provided for supporting the transmission of additional panel information, increasing the aspect ratio of an NTSC compatible main television signal component. Line differential information, as well as high frequency luminance and high frequency chrominance are transmitted in the augmentation signal super line time interval without frequency interleaving components. The high definition augmentation signal is derived by subsampling the high definition image produced by an HDTV source along the diagonal direction of its two dimensional frequency spectrum. The horizontal frequency bandwidth of the HDTV image is perserved without an objectionable loss of resolution to the human visual system.
摘要翻译：一种用于产生高分辨率电视信号的系统。提供增强信号用于支持附加面板信息的传输，增加NTSC兼容主电视信号分量的宽高比。线路差分信息以及高频亮度和高频色度在增强信号超线路时间间隔内传输，而没有频率交错分量。高清晰度增强信号是通过对HDTV信号源沿着其二维频谱的对角线方向产生的高分辨率图像进行二次采样得到的。 HDTV图像的水平频率带宽是持续的，而不会对人类视觉系统造成令人不快的分辨率损失。

5. 发明授权

US08121067B2 Quality of service provisioning using periodic channel time allocation 有权
标题翻译：使用周期性渠道时间分配的服务质量提供
公开(公告)号：US08121067B2
公开(公告)日：2012-02-21
申请号：US11908055
申请日：2006-03-08
申请人： Richard Y. Chen , Javier Del Prado Pavon , Sai Shankar Nandagopalan , Karl Wittig , Chun-Ting Chou , Ruediger Schmitt
发明人： Richard Y. Chen , Javier Del Prado Pavon , Sai Shankar Nandagopalan , Karl Wittig , Chun-Ting Chou , Ruediger Schmitt
IPC分类号： H04B7/212
CPC分类号： H04W74/04 , H04L47/14 , Y02D70/142
摘要： To maximize power saving performance without compromising on the QoS requirement of an application stream, a method and wireless network device generates a subset of a periodic service interval can be used for medium time allocation and data and information can be transmitted in contiguous medium time allocated this way. This selection of a period of time below service capacity allows multiple applications access the medium and for the selection of contiguous medium time during which data transmission can occur.
摘要翻译：为了在不影响应用流的QoS要求的情况下最大化节电性能，方法和无线网络设备生成周期性服务间隔的子集可以用于中等时间分配，并且数据和信息可以在连续的中等时间内传送，办法。在低于服务能力的一段时间内的这种选择允许多个应用程序访问介质以及用于选择可能发生数据传输的连续中等时间。

6. 发明申请

US20090252219A1 METHOD AND SYSTEM FOR THE TRANSMISSION OF DIGITAL VIDEO OVER A WIRELESS NETWORK 审中-公开
标题翻译：用于无线网络传输数字视频的方法和系统
公开(公告)号：US20090252219A1
公开(公告)日：2009-10-08
申请号：US11721830
申请日：2005-12-12
申请人： Yingwei Chen , Ruediger Schmitt , Richard Chen , Karl Wittig , Kiran Challapali
发明人： Yingwei Chen , Ruediger Schmitt , Richard Chen , Karl Wittig , Kiran Challapali
IPC分类号： H04N11/02
CPC分类号： H04N21/43637 , H04L47/50 , H04N21/234327 , H04N21/2402 , H04N21/2662 , H04N21/43615
摘要： An apparatus, system and method are provided for adaptive flow control of layered streaming video over wireless local area networks (WLANs). In one aspect prioritised and adaptive transmission mechanisms are provided based on buffer fullness and discarding visually less important packets so that future visually more important packets can reach the decoder in time. In another aspect, aggregated control is provided for all video applications as well as separate control for each video application.
摘要翻译：提供了一种用于通过无线局域网（WLAN）的分层流视频的自适应流控制的装置，系统和方法。在一个方面，基于缓冲器充满度提供优先级和自适应传输机制，并且丢弃视觉上不太重要的分组，使得将来视觉上更重要的分组可以及时到达解码器。在另一方面，为所有视频应用提供聚合控制以及针对每个视频应用的单独控制。

7. 发明申请

US20080186905A1 Quality Of Service Provisioning Using Periodic Channel Time Allocation 有权
标题翻译：使用定期信道时间分配的服务质量提供
公开(公告)号：US20080186905A1
公开(公告)日：2008-08-07
申请号：US11908055
申请日：2006-03-08
申请人： Richard Y. Chen , Javier Del Prado Pavon , Sai Shankar Nandagopalan , Karl Wittig , Chun-Ting Chou , Ruediger Schmitt
发明人： Richard Y. Chen , Javier Del Prado Pavon , Sai Shankar Nandagopalan , Karl Wittig , Chun-Ting Chou , Ruediger Schmitt
IPC分类号： H04B7/212
CPC分类号： H04W74/04 , H04L47/14 , Y02D70/142
摘要： To maximize power saving performance without compromising on the QoS requirement of an application stream, a method and wireless network device generates a subset of a periodic service interval can be used for medium time allocation and data and information can be transmitted in contiguous medium time allocated this way. This selection of a period of time below service capacity allows multiple applications access the medium and for the selection of contiguous medium time during which data transmission can occur.
摘要翻译：为了在不影响应用流的QoS要求的情况下最大化节电性能，方法和无线网络设备生成周期性服务间隔的子集可以用于中等时间分配，并且数据和信息可以在连续的中等时间内传送，办法。在低于服务能力的一段时间内的这种选择允许多个应用程序访问介质以及用于选择可能发生数据传输的连续中等时间。

8. 发明申请

US20070124352A1 Efficiency implementation of the cordic algorithm fro complex phase rotation 审中-公开
标题翻译：有效实施复杂相位旋转的cordic算法
公开(公告)号：US20070124352A1
公开(公告)日：2007-05-31
申请号：US10586938
申请日：2005-01-25
申请人： Karl Wittig
发明人： Karl Wittig
IPC分类号： G06F15/00
CPC分类号： G06F7/4818 , G06F7/5446
摘要： An improved implementation of the CORDIC algorithm that considers the n highest-order active bits in each stage of the CORDIC implementation resulting in increases in the precision of the final result by 2n. The rotational angle increment n−1 possible magnitudes that can be either positive or negative. The rotational angle increment is selected using the sign bit, along with the n−1 highest order active bits, of the rotation angle and an adjusted rotation angle is obtained by discarding the n highest-order active bits, and sign-extending the result using a negative sign when the lowest-order of these n bits equals the sign bit of present-stage rotation angle and a positive sign when they are different (this is equivalent to an exclusive NOR, or XNOR, operation on these two bits). Finally, the tangent is selected from 2n possible values (2n−1 magnitudes, each with 2 signs), such that it corresponds to the present-stage rotation angle. The use of this method results in a CORDIC implementation for which each stage increases the precision of the final result by a factor of 2n, by considering n bits of the present-stage rotation angle. As a result, the number of stages needed, relative to the traditional implementation, is reduced by a factor of n.
摘要翻译：考虑CORDIC实现的每个阶段中的n个最高有效位的CORDIC算法的改进实现导致最终结果的精度提高2％。旋转角增量n-1可能的幅度可以是正或负。使用符号位以及旋转角度的n-1个最高有效位选择旋转角增量，并且通过舍弃n个最高有效位来获得调整的旋转角度，并且使用这些n位的最低位等于当前级旋转角的符号位时的负号，当它们不同时为正号（这相当于这两位的异或运算或XNOR）。最后，切线选自2 ^{n 可能值（每个具有2个符号）的2个值，使得它对应于当前阶段的旋转角度。使用这种方法导致CORDIC实现，通过考虑当前阶段旋转角度的n位，每个阶段将最终结果的精度提高2倍。因此，与传统实施相比，所需的阶段数减少了一个因素。}

9. 发明授权

US07164712B2 Reconfigurable FIR filter using CSD coefficient representation 失效
标题翻译：使用CSD系数表示的可重构FIR滤波器
公开(公告)号：US07164712B2
公开(公告)日：2007-01-16
申请号：US10446230
申请日：2003-05-28
申请人： Karl Wittig
发明人： Karl Wittig
IPC分类号： H03K5/159
CPC分类号： H03H17/0294 , H03H17/0225 , H03H17/06
摘要： The present invention is directed to a reconfigurable finite impulse response (FIR) filter that processes data tap values with canonical sign digit (CSD) coefficients. The FIR filter according to the present invention includes a shift group associated with at least one of the data tap values and at least one of the CSD coefficients. Each shift group includes a plurality of parallel paths. Each parallel path shifts the data tap value according to a bit pair of the coefficient to produce a weighted product. An adder is also included that combines the weighted products from each of the shift groups.
摘要翻译：本发明涉及用规范符号数（CSD）系数处理数据抽头值的可重构有限脉冲响应（FIR）滤波器。根据本发明的FIR滤波器包括与数据抽头值和CSD系数中的至少一个相关联的移位组。每个移位组包括多个并行路径。每个并行路径根据系数的位对来移动数据抽头值，以产生加权乘积。还包括加法器，其组合来自每个班组的加权乘积。

10. 发明授权

US06933982B2 Method and apparatus for fast robust estimation of image noise in a video processing system 失效
标题翻译：用于在视频处理系统中快速鲁棒估计图像噪声的方法和装置
公开(公告)号：US06933982B2
公开(公告)日：2005-08-23
申请号：US10265581
申请日：2002-10-07
申请人： Karl Wittig
发明人： Karl Wittig
IPC分类号： H04N17/00 , H04N5/213 , H04N5/21
CPC分类号： H04N17/00
摘要： A method and apparatus for determining an image noise estimate value in a digital video processing system using only a single video image. In the method and apparatus, SAD values in the video image are calculated. For each SAD value, a determination is made as to whether the SAD value falls within one or more of a plurality of predetermined SAD value ranges, each of which corresponds to a prospective image noise estimate value. The determination is made concurrently for all of the predetermined SAD value ranges. For each one of the SAD value ranges, the number of SAD values that fall within that predetermined SAD value range is counted. The prospective image noise estimate having a count value that meets predetermined criteria is then selected as the image noise estimate value in the digital video processing system.
摘要翻译：一种用于在仅使用单个视频图像的数字视频处理系统中确定图像噪声估计值的方法和装置。在该方法和装置中，计算视频图像中的SAD值。对于每个SAD值，确定SAD值是否落入多个预定SAD值范围中的一个或多个，每个SAD值范围对应于预期图像噪声估计值。对于所有预定SAD值范围同时进行确定。对于每个SAD值范围，计算落在该预定SAD值范围内的SAD值的数量。随后在数字视频处理系统中选择具有满足预定标准的计数值的预期图像噪声估计作为图像噪声估计值。

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