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1. 发明授权

US07242860B2 Optical protection switching using 2 by 2 switching functions 失效
标题翻译：光保护切换采用2乘2切换功能
公开(公告)号：US07242860B2
公开(公告)日：2007-07-10
申请号：US10274244
申请日：2002-10-18
申请人： Hiroki Ikeda , Shigeki Kitajima , Shoichi Hanatani
发明人： Hiroki Ikeda , Shigeki Kitajima , Shoichi Hanatani
IPC分类号： G02F1/00
CPC分类号： H04J14/0291 , H04J14/0283 , H04J14/0284
摘要： A network is protected against interruption of service while one or more faulty switches or optical fiber transmission lines are repaired or replaced, by an interconnecting configuration of small N×N optical input/output switches, where N is 2 or greater than 2. The switches are configured among protection and working transmission lines. The small number of fibers for each switch improves repair and installation connection reliability and permits configurations that flexibly meet differing requirements. Also the fault is monitored with a fault check signal.
摘要翻译：通过小型NxN光输入/输出交换机（N为2或大于2）的互连配置，网络可以防止服务中断，而一个或多个故障交换机或光纤传输线路被修复或更换。这些交换机被配置在保护和工作传输线之间。每个开关的纤维数量少，可以提高维修和安装连接的可靠性，并允许灵活满足不同要求的配置。此外，故障通过故障检查信号进行监控。

2. 发明授权

US06944169B1 Method and apparatus for managing quality of service in network devices 失效
标题翻译：管理网络设备服务质量的方法和装置
公开(公告)号：US06944169B1
公开(公告)日：2005-09-13
申请号：US09516331
申请日：2000-03-01
申请人： Satoshi Yoshizawa , Kenichi Otsuki
发明人： Satoshi Yoshizawa , Kenichi Otsuki
IPC分类号： H04L29/02 , H04L12/24 , H04L12/56 , H04L12/28
CPC分类号： H04L47/10 , H04L41/082 , H04L41/5003 , H04L45/302 , H04L45/306 , H04L45/60 , H04L47/2425 , H04L47/762 , H04L47/805
摘要： A network system comprises a network of data sources interconnecting plural clients by way plural network devices. A data server achieves flexibility in its use of network resources by altering the attributes of one or more network devices along the communication channels between the data server and the plural clients. This is accomplished during the normal course of data transmissions to the plural clients, thus providing real time control over the network device attribute. The invention is particularly useful in data servers, such as a video server system, in which data transmissions are characterized by a long sequence of data packets.
摘要翻译：网络系统包括通过多个网络设备互连多个客户端的数据源网络。数据服务器通过沿着数据服务器和多个客户端之间的通信信道改变一个或多个网络设备的属性来实现网络资源使用的灵活性。这是在向多个客户端的数据传输的正常过程期间完成的，从而提供对网络设备属性的实时控制。本发明在诸如视频服务器系统的数据服务器中特别有用，其中数据传输由数据分组的长序列表征。

3. 发明申请

US20050034013A1 Method and apparatus for the takeover of primary volume in multiple volume mirroring 失效
标题翻译：在多卷镜像中接管主卷的方法和装置
公开(公告)号：US20050034013A1
公开(公告)日：2005-02-10
申请号：US10934061
申请日：2004-09-03
申请人： Masayuki Yamamoto , Akira Yamamoto , Kenji Yamagami
发明人： Masayuki Yamamoto , Akira Yamamoto , Kenji Yamagami
IPC分类号： G06F12/16 , G06F3/06 , G06F11/00 , G06F11/20
CPC分类号： G06F11/2069 , G06F11/2058
摘要： A multiple disk system comprises plural physical drives organized as plural groups of disks. Each group is accessed as a plurality of logical volumes. One of the logical drives is considered a primary volume and one or more other logical volumes are considered as secondary volumes, which together constitute a mirroring group. Data contained in a memory records such organization. The data is consulted to select a secondary volume when the disk group containing a primary volume fails.
摘要翻译：多磁盘系统包括被组织为多组磁盘的多个物理驱动器。每个组作为多个逻辑卷被访问。逻辑驱动器中的一个被认为是主卷，并且一个或多个其他逻辑卷被视为辅助卷，它们一起构成一个镜像组。内存中包含的数据记录这样的组织。当包含主卷的磁盘组发生故障时，将查询数据以选择辅助卷。

4. 发明申请

US20020110197A1 Methods and apparatus for representing different portions of an image at different resolutions 失效
标题翻译：用于以不同分辨率表示图像的不同部分的方法和装置
公开(公告)号：US20020110197A1
公开(公告)日：2002-08-15
申请号：US10090860
申请日：2002-03-05
申请人： HITACHI AMERICA, LTD.
发明人： Larry Pearlstein , John Henderson , Jack Fuhrer
IPC分类号： H04N007/12
CPC分类号： H04N19/30 , H04N19/51
摘要： Methods and apparatus for improving the quality of images generated by reduced resolution video decoders and new and improved video decoders which produce reduced resolution images are described. Methods and apparatus for identifying conditions within an image which may significantly degrade image quality if particular portions of the image are used by a reduced resolution decoder as reference data are described. One specific embodiment is directed to a new video decoder which decodes portions of a single image, e.g., frame, at different resolutions. Areas of the image along high contrast vertical or horizontal edges are decoded at full resolution while other portions of the same image are decoded at reduced resolution. By decoding and storing portions of reduced resolution images at full resolution for reference purposes, the risk of prediction errors resulting from the use of downsampling on reference frames is reduced.
摘要翻译：描述了通过降低分辨率的视频解码器产生的图像质量的改进方法和装置，以及产生分辨率降低的图像的新的和改进的视频解码器。描述了图像中的条件的方法和装置，如果图像的特定部分由缩减分辨率解码器用作参考数据，则可能显着降低图像质量。一个具体实施例涉及一种以不同分辨率解码单个图像（例如，帧）的部分的新的视频解码器。沿着高对比度的垂直或水平边缘的图像区域以全分辨率被解码，同时以降低的分辨率对相同图像的其他部分进行解码。通过以全分辨率解码和存储分辨率降低的图像的部分用于参考目的，降低了在参考帧上使用下采样导致的预测误差的风险。

5. 发明申请

US20020042801A1 Methods and apparatus for implementing and using processors with sign function capability 失效
标题翻译：具有符号功能的处理器的实现和使用的方法和装置
公开(公告)号：US20020042801A1
公开(公告)日：2002-04-11
申请号：US09809594
申请日：2001-03-15
申请人： HITACHI AMERICA, LTD
发明人： Sharif Mohammad Sazzad
IPC分类号： G06F007/00
CPC分类号： G06F9/30094 , G06F7/48 , G06F7/49994 , G06F2207/3828 , H04N19/61
摘要： Methods and apparatus for implementing and using a sign(x) function are described. In accordance with the present invention, the sign(x) function is implemented in hardware, e.g., by incorporating a simple circuit of the present invention into a central processing unit (CPU). By taking a hardware approach as opposed to the known software approach to implementing a sign(x) function, the present invention provides for an efficient sign(x) function implementation that is well suited for both SISD and SIMD systems. The hardware required to implement the sign(x) function in accordance with the present invention is relatively simple and allows for the sign(x) function to be determined in a single processor clock cycle. This is in sharp contrast to the plurality of processor clock cycles normally required to determine the sign(x) function in software embodiments. A processor sign(x) command is supported in embodiments where the hardware for performing the sign(x) function is incorporated into a processor. By incorporating a single sign(x) circuit into a processor a SISD sign(x) function can be supported. By duplicating the basic sign(x) hardware within a processor, in accordance with the present invention, a SIMD sign(x) function can be implemented. The sign(x) hardware and novel sign(x) processor command of the present invention, can be used to facilitate a variety of applications where the sign(x) function is encountered.
摘要翻译：描述了用于实现和使用sign（x）功能的方法和装置。根据本发明，例如通过将本发明的简单电路结合到中央处理单元（CPU）中，符号（x）功能是以硬件实现的。通过采用硬件方法而不是实现符号（x）功能的已知软件方法，本发明提供了非常适合于SISD和SIMD系统的有效符号（x）功能实现。根据本发明实现符号（x）功能所需的硬件相对简单，并允许在单个处理器时钟周期中确定符号（x）功能。这与在软件实施例中确定符号（x）功能通常需要的多个处理器时钟周期形成鲜明对比。在用于执行符号（x）功能的硬件被并入处理器的实施例中，支持处理器符号（x）命令。通过将单符号（x）电路并入处理器，可以支持SISD符号（x）功能。通过在处理器内复制基本符号（x）硬件，根据本发明，可以实现SIMD符号（x）功能。本发明的符号（x）硬件和新颖的（x）处理器命令可以用于促进遇到符号（x）功能的各种应用。

6. 发明申请

US20010036255A1 Methods and apparatus for providing speech recognition services to communication system users 有权
标题翻译：向通信系统用户提供语音识别服务的方法和装置
公开(公告)号：US20010036255A1
公开(公告)日：2001-11-01
申请号：US09850229
申请日：2001-05-07
申请人： HITACHI AMERICA, LTD, a corporation of New York
发明人： John R. Reformato , George J. Vysotsky
IPC分类号： H04M001/64
CPC分类号： H04M1/64 , H04M3/493 , H04M3/533 , H04M2201/40
摘要： Methods and apparatus for providing speech recognition capability to callers in a cost efficient manner as part of one or more telephone services are described. Multiple speech recognition units with differing capabilities and therefore implementation costs are provided. Calls are assigned to speech recognition circuits throughout a call based on a signal such as a service type identifier indicating the type of service to be provided to the caller. During different phases of a call different speech recognition units may be used. In addition, different amounts of speech recognition processing capability may be allocated to service a call at different points during a call. In this manner efficient use of available speech recognition resources can be achieved.
摘要翻译：描述了作为一个或多个电话服务的一部分以成本有效的方式向呼叫者提供语音识别能力的方法和装置。提供了具有不同功能并因此实现成本的多个语音识别单元。基于诸如指示要提供给呼叫者的服务类型的服务类型标识符的信号，呼叫在整个呼叫中被分配给语音识别电路。在呼叫的不同阶段期间，可以使用不同的语音识别单元。此外，可以分配不同量的语音识别处理能力来在呼叫期间在不同点处服务呼叫。以这种方式，可以实现有效使用可用的语音识别资源。

7. 发明申请

US20010022001A1 Methods and apparatus for processing multimedia broadcasts 失效
标题翻译：处理多媒体广播的方法和装置
公开(公告)号：US20010022001A1
公开(公告)日：2001-09-13
申请号：US09862572
申请日：2001-05-22
申请人： HITACHI AMERICA, LTD, corporation of
发明人： Kazushige Hiroi
IPC分类号： H04N007/173
CPC分类号： H04N21/433 , H04N5/4401 , H04N5/44543 , H04N7/17318 , H04N21/235 , H04N21/4331 , H04N21/435 , H04N21/8166 , H04N21/8173 , H04N21/8586
摘要： A receiver arranged to receive and store broadcast data transported by elementary stream of a multiplexed and modulated digital television signal in a rewritable memory during a low power consumption mode for later recall by a user of the receiver. For recall, the receiver is fully energized, and the receiver is further arranged to transfer the broadcast data stored in the rewritable memory to a receiver storage device for further processing of the data under control of the user.
摘要翻译：一种接收机，被布置成在低功耗模式期间接收和存储在可重写存储器中通过复用和调制的数字电视信号的基本流传输的广播数据，以供稍后由接收机的用户调用。为了回收，接收机被完全通电，并且接收机还被布置成将存储在可重写存储器中的广播数据传送到接收器存储设备，以在用户的控制下进一步处理数据。

8. 发明授权

US6148033A Methods and apparatus for improving picture quality in reduced resolution video decoders 失效
标题翻译：降低分辨率视频解码器提高图像质量的方法和装置
公开(公告)号：US6148033A
公开(公告)日：2000-11-14
申请号：US974908
申请日：1997-11-20
申请人： Larry Pearlstein , John Henderson , Jack Fuhrer
发明人： Larry Pearlstein , John Henderson , Jack Fuhrer
IPC分类号： H04N7/32 , G06T9/00 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/46 , H04N7/50
CPC分类号： H04N19/59 , H04N19/105 , H04N19/139 , H04N19/14 , H04N19/149 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/423 , H04N19/428 , H04N19/51 , H04N19/61 , H04N19/82 , H04N19/86
摘要： Methods and apparatus for improving the quality of images generated by reduced resolution video decoders and new and improved video decoders which produce reduced resolution images are described. Methods and apparatus for identifying conditions within an image which may significantly degrade image quality if particular portions of the image are used by a reduced resolution decoder as reference data are described. In particular, techniques for identifying blocks of pixels, referred to as constant block regions, having approximately the same intensity in terms of luminance values, are discussed. High contrast vertical and/or horizontal edges will cause significant prediction errors in images generated by reduced resolution decoders under certain conditions. Methods for assessing when such conditions exist and a significant prediction error is likely to occur are described. In addition methods and apparatus for minimizing the effect of such prediction errors in downsampling decoders are also described. One specific embodiment is directed to a new video decoder which decodes portions of a single image, e.g., frame, at different resolutions. Areas of the image along high contrast vertical or horizontal edges are decoded at full resolution while other portions of the same image are decoded at reduced resolution. Identified constant block areas found in multiple frames are decoded at even lower resolution than other image areas. By decoding and storing portions of reduced resolution images at full resolution for reference purposes, the risk of prediction errors resulting from the use of downsampling on reference frames is reduced.
摘要翻译：描述了通过降低分辨率的视频解码器产生的图像质量的改进方法和装置，以及产生分辨率降低的图像的新的和改进的视频解码器。描述了图像中的条件的方法和装置，如果图像的特定部分由缩减分辨率解码器用作参考数据，则可能显着降低图像质量。特别地，讨论了用于识别在亮度值方面具有近似相同强度的被称为恒定块区域的像素块的技术。高对比度垂直和/或水平边缘将在特定条件下由降低分辨率解码器产生的图像中产生显着的预测误差。描述了何时存在这种条件以及可能发生显着的预测误差的方法。此外，还描述了用于最小化下采样解码器中的这种预测误差的影响的方法和装置。一个具体实施例涉及一种以不同分辨率解码单个图像（例如，帧）的部分的新的视频解码器。沿着高对比度的垂直或水平边缘的图像区域以全分辨率被解码，同时以降低的分辨率对相同图像的其他部分进行解码。在多个帧中发现的识别的常量块区域以比其他图像区域更低的分辨率被解码。通过以全分辨率解码和存储分辨率降低的图像的部分用于参考目的，降低了在参考帧上使用下采样导致的预测误差的风险。

9. 发明授权

US6141456A Methods and apparatus for combining downsampling and inverse discrete cosine transform operations 失效
标题翻译：用于组合下采样和逆离散余弦变换操作的方法和装置
公开(公告)号：US6141456A
公开(公告)日：2000-10-31
申请号：US1700
申请日：1997-12-31
申请人： Larry Pearlstein , Sharif M. Sazzad
发明人： Larry Pearlstein , Sharif M. Sazzad
IPC分类号： H04N7/30 , G06T3/40 , G06T9/00 , H04N1/387 , H04N7/26 , H04N7/46 , H04N7/50 , G06K9/36 , G06K9/32 , G06K9/46
CPC分类号： G06T3/4084 , H04N19/126 , H04N19/48 , H04N19/59 , H04N19/61 , H04N19/90
摘要： Methods and apparatus for combining linear image post-processing operations with an inverse discrete cosine transform (IDCT) operation are described. In accordance with various embodiments of the present invention IDCT and downsampling operations are combined into a single operation to achieve the same image processing result as sequential IDCT and downsampling operations. By combining the two operations and performing downsampling in the DCT, as opposed to pixel domain, significant complexity reduction is achieved over embodiments where the two operations are performed sequentially. In one particular embodiment, when interlaced images are being processed, combined IDCT/downsampling circuits which perform field based, as opposed to frame based, downsampling in the DCT domain are employed. The method and apparatus of the present invention can be used to implement circuits which perform a combined full order IDCT/downsampling operation and/or a reduced complexity combined full order IDCT/downsampling operation. The combined IDCT/downsampling methods and apparatus of the present invention are capable of supporting a wide range of downsampling ratios using, at least in some cases, fewer math operators, than are required to implement zonal filtering followed by a reduced order IDCT operation which requires the use of a contiguous subblock of DCT coefficients.
摘要翻译：描述了将线性图像后处理操作与逆离散余弦变换（IDCT）操作组合的方法和装置。根据本发明的各种实施例，IDCT和下采样操作被组合成单个操作以实现与顺序IDCT和下采样操作相同的图像处理结果。通过组合这两个操作并在DCT中执行下采样，与像素域相反，实现了在顺序执行两个操作的实施例中显着的复杂度降低。在一个特定实施例中，当正在处理隔行扫描图像时，采用在DCT域中执行基于场的组合IDCT /下采样电路，而不是基于帧的下采样。本发明的方法和装置可用于实现执行组合的全序IDCT /下采样操作和/或降低复杂度的组合式全序列IDCT /下采样操作的电路。本发明的组合的IDCT /下采样方法和装置能够使用至少在一些情况下使用较少的数学运算符来支持大范围的下采样比率，而不是实现区域过滤，然后是减少订单IDCT操作所需的，这需要使用DCT系数的连续子块。

10. 发明授权

US6061400A Methods and apparatus for detecting scene conditions likely to cause prediction errors in reduced resolution video decoders and for using the detected information 失效
标题翻译：用于检测可能导致缩小分辨率视频解码器中的预测误差并且使用检测到的信息的场景条件的方法和装置
公开(公告)号：US6061400A
公开(公告)日：2000-05-09
申请号：US974907
申请日：1997-11-20
申请人： Larry Pearlstein , John Henderson , Jack Fuhrer
发明人： Larry Pearlstein , John Henderson , Jack Fuhrer
IPC分类号： H04N11/04 , G06T9/00 , H04N1/41 , H04N7/26 , H04N7/36 , H04N7/46 , H04N1/66 , H04N7/12
CPC分类号： H04N19/51 , H04N19/59
摘要： Techniques for identifying blocks of pixels, referred to as constant block regions, having approximately the same intensity in terms of luminance values, are discussed. High contrast vertical and/or horizontal edges will cause significant prediction errors in images generated by reduced resolution decoders under certain conditions. Methods for assessing when such conditions exist and a significant prediction error is likely to occur are described. In addition methods and apparatus for minimizing the effect of such prediction errors in downsampling decoders are also described. One specific embodiment is directed to a new video decoder which decodes portions of a single image, e.g., frame, at different resolutions. Areas of the image along high contrast vertical or horizontal edges are decoded at full resolution while other portions of the same image are decoded at reduced resolution. By decoding and storing portions of reduced resolution images at full resolution for reference purposes, the risk of prediction errors resulting from the use of downsampling on reference frames is reduced.
摘要翻译：讨论了用于识别在亮度值方面具有近似相同强度的被称为恒定块区域的像素块的技术。高对比度垂直和/或水平边缘将在特定条件下由降低分辨率解码器产生的图像中产生显着的预测误差。描述了何时存在这种条件以及可能发生显着的预测误差的方法。此外，还描述了用于最小化下采样解码器中的这种预测误差的影响的方法和装置。一个具体实施例涉及一种以不同分辨率解码单个图像（例如，帧）的部分的新的视频解码器。沿着高对比度的垂直或水平边缘的图像区域以全分辨率被解码，同时以降低的分辨率对相同图像的其他部分进行解码。通过以全分辨率解码和存储分辨率降低的图像的部分用于参考目的，降低了在参考帧上使用下采样导致的预测误差的风险。

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