公开(公告)号：US20050057286A1

公开(公告)日：2005-03-17

申请号：US10898743

申请日：2004-07-26

Applicant: Ken Shepard ,  Steven Chan

Inventor： Ken Shepard ,  Steven Chan

IPC: G06F1/10 ,  H03L7/00

CPC classification number: G06F1/10

Abstract: A circuit for distributing a clock signal in an integrated circuit includes a capacitive clock distribution circuit having at least conductor therein. At least one inductor is formed in a metal layer of the integrated circuit and is coupled to the clock distribution circuit. The inductor, generally in the form of a number of spiral inductors distributed throughout the integrated circuit, provides an inductance value selected to resonate with the capacitive clock distribution circuit. By operating the clock distribution circuit at resonance, power dissipation is reduced while skew and jitter performance can be improved.

Abstract translation: 用于在集成电路中分配时钟信号的电路包括其中至少具有导体的电容时钟分配电路。 在集成电路的金属层中形成至少一个电感器，并且耦合到时钟分配电路。 通常以分布在整个集成电路中的多个螺旋电感器的形式的电感器提供选择为与电容时钟分配电路谐振的电感值。 通过在谐振时操作时钟分配电路，降低功耗，同时可以提高偏移和抖动性能。

公开(公告)号：US20090302952A1

公开(公告)日：2009-12-10

申请号：US12159750

申请日：2006-12-29

Applicant: Steven Chan ,  Kenneth L. Shepard ,  Zheng Xu

Inventor： Steven Chan ,  Kenneth L. Shepard ,  Zheng Xu

IPC: H03B5/12

CPC classification number: G06F1/00 ,  G06F1/10 ,  H03L5/00 ,  H03L7/081 ,  H03L7/087 ,  H03L7/24

Abstract: Systems and methods for distributing a clock signal are disclosed. In some embodiments, systems for distributing a clock signal include a plurality of resonant oscillators, each comprising an inductor; and a differential clock grid that distributes the clock signal. The differential clock grid is coupled to the plurality of resonant oscillators and the clock signal, and the inductances of the inductors are configured such that a resonant frequency of the plurality of resonant oscillators is substantially equal to the frequency of the clock signal.

Abstract translation: 公开了用于分配时钟信号的系统和方法。 在一些实施例中，用于分配时钟信号的系统包括多个谐振振荡器，每个谐振振荡器包括电感器; 以及分配时钟信号的差分时钟网格。 差分时钟网格耦合到多个谐振振荡器和时钟信号，并且电感器的电感被配置为使得多个谐振振荡器的谐振频率基本上等于时钟信号的频率。

公开(公告)号：US20060200720A1

公开(公告)日：2006-09-07

申请号：US11070638

申请日：2005-03-01

Applicant: David Grimme ,  Mark Hammons ,  Steven Chan ,  Robert Matthews

Inventor： David Grimme ,  Mark Hammons ,  Steven Chan ,  Robert Matthews

IPC: G01R31/28

CPC classification number: G06F13/4234

Abstract: A peripheral device to generate read and write cycles on a PCI bus comprises a PCI bus interface. A control unit has a data pattern generator to source a data pattern to a target via the interface during a write operation and to verify an incoming data pattern from the interface during a read operation.

Abstract translation: 用于在PCI总线上生成读和写周期的外围设备包括PCI总线接口。 控制单元具有数据模式发生器，用于在写入操作期间经由接口将数据模式发送到目标，并且在读取操作期间验证来自接口的输入数据模式。

公开(公告)号：US20060033671A1

公开(公告)日：2006-02-16

申请号：US10917986

申请日：2004-08-11

Applicant: Steven Chan ,  Te Wu ,  Arun Bhattacharyya ,  Juan Rivera ,  Phillip Metzen

Inventor： Steven Chan ,  Te Wu ,  Arun Bhattacharyya ,  Juan Rivera ,  Phillip Metzen

IPC: H01Q13/12

CPC classification number: H01Q13/106 ,  H01Q21/0087 ,  H01Q21/0093 ,  H01Q21/064

Abstract: A phased array antenna structure capable of operation at millimeter-wave frequencies and having multiple ring slot radiator elements (10). The RF feed structure for each radiator element includes a feed via (28) extending part-way through a multi-layer structure (FIG. 3) on which the radiator elements (10) are formed and a strip line feed probe (30) extending from the via (28) toward the radiator element. A key feature facilitating high-frequency operation is the inclusion of multiple mode suppressors (32) surrounding the via (28) and providing a smooth transition from a coaxial mode of RF transmission to a strip line mode of RF transmission. The feed probe (30) is tailored to provide either a narrow-band or a wideband frequency characteristic.

Abstract translation: 一种相位阵列天线结构，其能够在毫米波频率下操作并具有多个环形槽辐射体元件（10）。 每个散热器元件的RF馈送结构包括一个穿过形成有散热器元件（10）的多层结构（图3）的馈通通道（28），以及一条延伸 从通路（28）朝向散热器元件。 促进高频操作的关键特征是包括围绕通孔（28）的多个模式抑制器（32）并且提供从RF传输的同轴模式到RF传输的带状线路模式的平滑过渡。 馈送探针（30）被定制以提供窄带或宽带频率特性。

公开(公告)号：US08572287B2

公开(公告)日：2013-10-29

申请号：US12031211

申请日：2008-02-14

Applicant: Salmaan Ahmed ,  David P. Sze ,  Steven Chan

Inventor： Salmaan Ahmed ,  David P. Sze ,  Steven Chan

IPC: G06F15/16

CPC classification number: H04L69/04

Abstract: A method of determining, at a mobile device, side information including compression state information. The method includes receiving, from a server, a unique side information identifier identifying a unit of side information used by the server for compressing data, determining, based on the side information identifier, if the unit of side information is resident on said device, and if the unit of side information is resident on the mobile device, loading the side information for decompressing the data. Otherwise, if the unit of side information is not resident on the mobile device, the method includes requesting the unit of side information from one of the server and another device.

Abstract translation: 一种在移动设备处确定包括压缩状态信息的辅助信息的方法。 该方法包括从服务器接收识别服务器用于压缩数据的侧信息单元的唯一侧信息标识符，根据侧信息标识符确定边信息单元是否驻留在所述设备上，以及 如果侧信息的单元驻留在移动设备上，则加载用于解压缩数据的辅助信息。 否则，如果侧信息的单元不驻留在移动设备上，则该方法包括从服务器和另一设备之一请求单元的侧信息。

公开(公告)号：US08072357B2

公开(公告)日：2011-12-06

申请号：US12566815

申请日：2009-09-25

Applicant: Steven Chan ,  En-Hui Yang

Inventor： Steven Chan ,  En-Hui Yang

IPC: H03M5/00

CPC classification number: H03M7/30 ,  H03M7/3084

Abstract: For context based compression techniques, for example Context Based YK compression, a method and system for grouping contexts from a given context model together to create a new context model that has fewer contexts, but retains acceptable compression gains compared to the context model with more contexts is provided. According to an exemplary embodiment a set of files that are correlated to the file to be compressed (hereafter called training files) are read to determine, for an initial context model, the empirical statistics of contexts and symbols. In some embodiments, this includes determining the estimated joint and conditional probabilities of the various contexts and symbols (or blocks of symbols). The initial context model is then reduced to a desired number of contexts, for example, by applying a grouping function g to the original set of contexts to obtain a new and smaller set of contexts. In some embodiments the step of applying a grouping function comprises iteratively grouping a pair of contexts together to form a grouped context, wherein each grouped context represents a local minimum based on the empirical statistics.

Abstract translation: 对于基于上下文的压缩技术，例如基于上下文的YK压缩，一种用于将来自给定上下文模型的上下文一起分组的方法和系统，以创建具有较少上下文的新上下文模型，但与具有更多上下文的上下文模型相比，保留可接受的压缩增益 被提供。 根据示例性实施例，读取与要压缩的文件（以下称为训练文件）相关联的一组文件，以便为初始上下文模型确定上下文和符号的经验统计。 在一些实施例中，这包括确定各种上下文和符号（或符号块）的估计的联合和条件概率。 然后，将初始上下文模型简化为期望数量的上下文，例如通过将分组函数g应用于原始上下文集合来获得新的和较小的上下文集合。 在一些实施例中，应用分组功能的步骤包括将一对上下文迭代地分组在一起以形成分组的上下文，其中每个分组的上下文表示基于经验统计的局部最小值。

公开(公告)号：US07616132B2

公开(公告)日：2009-11-10

申请号：US12040149

申请日：2008-02-29

Applicant: Steven Chan ,  En-Hui Yang

Inventor： Steven Chan ,  En-Hui Yang

IPC: H03M7/00

CPC classification number: H03M7/30 ,  H03M7/3084

Abstract: For context based compression techniques, for example Context Based YK compression, a method and system for grouping contexts from a given context model together to create a new context model that has fewer contexts, but retains acceptable compression gains compared to the context model with more contexts is provided. According to an exemplary embodiment a set of files that are correlated to the file to be compressed (hereafter called training files) are read to determine, for an initial context model, the empirical statistics of contexts and symbols. In some embodiments, this includes determining the estimated joint and conditional probabilities of the various contexts and symbols (or blocks of symbols). The initial context model is then reduced to a desired number of contexts, for example, by applying a grouping function g to the original set of contexts to obtain a new and smaller set of contexts. In some embodiments the step of applying a grouping function comprises iteratively grouping a pair of contexts together to form a grouped context, wherein each grouped context represents a local minimum based on the empirical statistics.

Abstract translation: 对于基于上下文的压缩技术，例如基于上下文的YK压缩，一种用于将来自给定上下文模型的上下文一起分组的方法和系统，以创建具有较少上下文的新上下文模型，但与具有更多上下文的上下文模型相比，保留可接受的压缩增益 被提供。 根据示例性实施例，读取与要压缩的文件（以下称为训练文件）相关联的一组文件，以便为初始上下文模型确定上下文和符号的经验统计。 在一些实施例中，这包括确定各种上下文和符号（或符号块）的估计的联合和条件概率。 然后，将初始上下文模型简化为期望数量的上下文，例如通过将分组函数g应用于原始上下文集合来获得新的和较小的上下文集合。 在一些实施例中，应用分组功能的步骤包括将一对上下文迭代地分组在一起以形成分组的上下文，其中每个分组的上下文表示基于经验统计的局部最小值。

公开(公告)号：US20090021403A1

公开(公告)日：2009-01-22

申请号：US12040149

申请日：2008-02-29

Applicant: Steven CHAN ,  En-Hui YANG

Inventor： Steven CHAN ,  En-Hui YANG

IPC: H03M7/00

CPC classification number: H03M7/30 ,  H03M7/3084

Abstract: For context based compression techniques, for example Context Based YK compression, a method and system for grouping contexts from a given context model together to create a new context model that has fewer contexts, but retains acceptable compression gains compared to the context model with more contexts is provided. According to an exemplary embodiment a set of files that are correlated to the file to be compressed (hereafter called training files) are read to determine, for an initial context model, the empirical statistics of contexts and symbols. In some embodiments, this includes determining the estimated joint and conditional probabilities of the various contexts and symbols (or blocks of symbols). The initial context model is then reduced to a desired number of contexts, for example, by applying a grouping function g to the original set of contexts to obtain a new and smaller set of contexts. In some embodiments the step of applying a grouping function comprises iteratively grouping a pair of contexts together to form a grouped context, wherein each grouped context represents a local minimum based on the empirical statistics.

Abstract translation: 对于基于上下文的压缩技术，例如基于上下文的YK压缩，一种用于将来自给定上下文模型的上下文一起分组的方法和系统，以创建具有较少上下文的新上下文模型，但与具有更多上下文的上下文模型相比，保留可接受的压缩增益 被提供。 根据示例性实施例，读取与要压缩的文件（以下称为训练文件）相关联的一组文件，以便为初始上下文模型确定上下文和符号的经验统计。 在一些实施例中，这包括确定各种上下文和符号（或符号块）的估计的联合和条件概率。 然后，将初始上下文模型简化为期望数量的上下文，例如通过将分组函数g应用于原始上下文集合来获得新的和较小的上下文集合。 在一些实施例中，应用分组功能的步骤包括将一对上下文迭代地分组在一起以形成分组的上下文，其中每个分组的上下文表示基于经验统计的局部最小值。

公开(公告)号：US20070115077A1

公开(公告)日：2007-05-24

申请号：US11287414

申请日：2005-11-23

Applicant: Steven Chan ,  Te Wu ,  Arun Bhattacharvyya

Inventor： Steven Chan ,  Te Wu ,  Arun Bhattacharvyya

IPC: H01P5/12

CPC classification number: H01P5/12 ,  H01P1/161

Abstract: A rectangular-to-circular mode combiner/divider is provided. In one aspect of the invention, a power combiner is provided that comprises a plurality of rectangular waveguide ports arranged in an integral arrangement. Each rectangular waveguide port is operative to operate in a rectangular mode. The power combiner is also includes a circular waveguide port operative to operate in a circular mode, and a transition body that couples the plurality of rectangular waveguide ports to the circular waveguide port. The transition body has an inner transition cavity and an outer body operative to convert radio frequency (RF) signals between the rectangular mode and the circular mode, and provide a combined output signal at the circular waveguide port from RF signals received at the plurality rectangular waveguide ports.

Abstract translation: 提供矩形到圆形模式组合器/分配器。 在本发明的一个方面，提供一种功率组合器，其包括以整体布置布置的多个矩形波导端口。 每个矩形波导端口可操作以在矩形模式下操作。 功率组合器还包括可操作以圆形模式操作的圆形波导端口和将多个矩形波导端口耦合到圆形波导端口的过渡体。 过渡体具有内部过渡腔和外部体，其可操作以在矩形模式和圆形模式之间转换射频（RF）信号，并且在圆形波导端口处从在多个矩形波导处接收的RF信号提供组合输出信号 港口。

公开(公告)号：US20060139112A1

公开(公告)日：2006-06-29

申请号：US10501278

申请日：2003-01-13

Applicant: Kenneth Shepard ,  Steven Chan

Inventor： Kenneth Shepard ,  Steven Chan

IPC: H03B5/08

CPC classification number: G06F1/10

Abstract: A circuit for distributing a clock signal in an integrated circuit includes a capacitive clock distribution circuit (102) having at least conductor (115) therein. At least one inductor is formed in a metal layer of the integrated circuit and is coupled to the clock distribution circuit. The inductor, generally in the form of a number of spiral inductors (120) distributed throughout the integrated circuit, provides an inductance value selected to resonate with the capacitive clock distribution circuit at resonance, power dissipation is reduced while skew and jitter performance can be improved.

Abstract translation: 用于在集成电路中分配时钟信号的电路包括其中至少具有导体（115）的电容时钟分配电路（102）。 在集成电路的金属层中形成至少一个电感器，并且耦合到时钟分配电路。 通常以分布在整个集成电路中的多个螺旋电感器（120）的形式的电感器提供选择的谐振电感值，以在谐振时与电容时钟分配电路谐振，降低功耗，同时可以改善偏斜和抖动性能 。