Systems and methods for data compression such as content dependent data compression
    52.
    发明授权
    Systems and methods for data compression such as content dependent data compression 有权
    用于数据压缩的系统和方法,如依赖于内容的数据压缩

    公开(公告)号:US07161506B2

    公开(公告)日:2007-01-09

    申请号:US10668768

    申请日:2003-09-22

    申请人: James J. Fallon

    发明人: James J. Fallon

    IPC分类号: H03M7/34

    摘要: Systems and methods for providing fast and efficient data compression using a combination of content independent data compression and content dependent data compression. In one aspect, a method for compressing data comprises the steps of: analyzing a data block of an input data stream to identify a data type of the data block, the input data stream comprising a plurality of disparate data types; performing content dependent data compression on the data block, if the data type of the data block is identified; performing content independent data compression on the data block, if the data type of the data block is not identified.

    摘要翻译: 使用独立于内容的数据压缩和依赖于内容的数据压缩的组合来提供快速有效的数据压缩的系统和方法。 一方面,一种用于压缩数据的方法包括以下步骤:分析输入数据流的数据块以识别数据块的数据类型,所述输入数据流包括多个不同的数据类型; 如果数据块的数据类型被识别,则对数据块执行依赖于内容的数据压缩; 如果数据块的数据类型未被识别,则对数据块执行内容独立的数据压缩。

    Differential signal detector methods and apparatus
    53.
    发明授权
    Differential signal detector methods and apparatus 有权
    差分信号检测方法及装置

    公开(公告)号:US07157944B1

    公开(公告)日:2007-01-02

    申请号:US10833706

    申请日:2004-04-27

    IPC分类号: G01R19/00

    摘要: Circuitry and methods allow signal detection based entirely on differential voltage pairs. An incoming differential data signal is processed by separate full-wave rectifiers to extract high and low peak voltage envelopes. The rectifiers utilize negative feedback to ensure accurate envelope detection, and can detect peaks regardless of incoming signal polarity. The extracted envelopes are compared to a differential pair of threshold voltages. If the envelope signals have a smaller voltage difference than that of the threshold signals, the final output of the detector indicates that a loss-of-signal condition has occurred. Fully differential operation makes the detector independent of common-mode voltage, and thus more robust.

    摘要翻译: 电路和方法允许完全基于差分电压对的信号检测。 输入差分数据信号由单独的全波整流器处理,以提取高和低峰值电压信封。 整流器利用负反馈来确保精确的包络检测,无论输入信号极性如何,都可以检测峰值。 提取的信封与阈值电压的差分对进行比较。 如果包络信号具有比阈值信号更小的电压差,则检测器的最终输出指示出现信号损失状况。 全差分操作使检测器不受共模电压的影响,从而更强大。

    Traffic data management and simulation system
    54.
    发明授权
    Traffic data management and simulation system 有权
    交通数据管理与仿真系统

    公开(公告)号:US07155376B2

    公开(公告)日:2006-12-26

    申请号:US10179643

    申请日:2002-06-24

    IPC分类号: G06G7/48

    摘要: Systems and methods for, inter alia, geographically based analyses of traffic being carried over a wide scale traffic network. The systems integrate geographical information systems (GIS) with traffic simulation processes to allow a user to analyze traffic patterns and loads at specific geographic locations of regions. Additionally, these systems allow for traffic analysis over a wide scale traffic network that may encompass the traffic network that exists within an geographic region and can include, as examples, the traffic networks that span across a city, that interconnect cities, that interconnect states and that run across multiple states. To this end, the systems include traffic simulators that can adaptively or controllably select between multiple traffic simulation models for simulating traffic across different segments of the traffic network. The different models provide varying levels of granularity for measurements of geographical location of a vehicle traveling over the traffic network.

    摘要翻译: 尤其是通过地理位置分析在大规模交通网络上传输的流量的系统和方法。 系统将地理信息系统(GIS)与流量模拟过程相结合,以允许用户分析区域特定地理位置的流量模式和负载。 此外,这些系统允许在可能包含地理区域内存在的业务网络的广泛业务网络上的流量分析,并且可以例如跨越跨越城市的交通网络,互连城市,互连状态和 跨越多个州。 为此,系统包括可以在多个流量模拟模型之间自适应地或可控地选择用于模拟交通网络的不同段的流量的流量模拟器。 不同的模型为在交通网络上行驶的车辆的地理位置的测量提供不同程度的粒度。

    System and methods for accelerated data storage and retrieval

    公开(公告)号:US07130913B2

    公开(公告)日:2006-10-31

    申请号:US10628795

    申请日:2003-07-28

    申请人: James J. Fallon

    发明人: James J. Fallon

    IPC分类号: G06F15/16

    摘要: Systems and methods for providing accelerated data storage and retrieval utilizing lossless data compression and decompression. A data storage accelerator includes one or a plurality of high speed data compression encoders that are configured to simultaneously or sequentially losslessly compress data at a rate equivalent to or faster than the transmission rate of an input data stream. The compressed data is subsequently stored in a target memory or other storage device whose input data storage bandwidth is lower than the original input data stream bandwidth. Similarly, a data retrieval accelerator includes one or a plurality of high speed data decompression decoders that are configured to simultaneously or sequentially losslessly decompress data at a rate equivalent to or faster than the input data stream from the target memory or storage device. The decompressed data is then output at rate data that is greater than the output rate from the target memory or data storage device. The data storage and retrieval accelerator method and system may employed: in a disk storage adapter to reduce the time required to store and retrieve data from computer to disk; in conjunction with random access memory to reduce the time required to store and retrieve data from random access memory; in a display controller to reduce the time required to send display data to the display controller or processor; and/or in an input/output controller to reduce the time required to store, retrieve, or transmit data.

    Method for managing an investment portfolio
    58.
    发明授权
    Method for managing an investment portfolio 有权
    管理投资组合的方法

    公开(公告)号:US07120598B2

    公开(公告)日:2006-10-10

    申请号:US10412111

    申请日:2003-04-11

    IPC分类号: G06F17/60

    摘要: There is provided a method for managing an investment portfolio. The method includes determining a feasible change in value of a first asset, and determining an allocation between the first asset and a second asset based on the feasible change in value of the first asset. The second asset appreciates over a holding period, and the allocation yields an expected minimum future value for the investment portfolio.

    摘要翻译: 提供了一种管理投资组合的方法。 该方法包括确定第一资产的价值的可行变化,以及基于第一资产的价值的可行变化来确定第一资产与第二资产之间的分配。 第二项资产在持有期间升值,分配产生投资组合的预期最低未来价值。

    Programmable logic devices with skewed clocking signals
    59.
    发明授权
    Programmable logic devices with skewed clocking signals 有权
    具有偏移时钟信号的可编程逻辑器件

    公开(公告)号:US07107477B1

    公开(公告)日:2006-09-12

    申请号:US10357040

    申请日:2003-01-31

    IPC分类号: G03F7/38

    摘要: A programmable logic device has programmable phase-shifting circuitry. The phase-shifting circuitry is used to generate a set of skewed clock signals that is used to adjust the relative timing of device elements in a circuit synthesized in the programmable logic device. By suitably adjusting the relative timing of the device elements, the circuit critical path lengths are effectively reduced leading to improved circuit frequency performance. Algorithms are provided for establishing clock skew values that lead to improved circuit performance. The algorithms are incorporated in computer aided design tools to enable automatic optimization of circuit designs.

    摘要翻译: 可编程逻辑器件具有可编程相移电路。 移相电路用于产生一组偏斜时钟信号,用于调整在可编程逻辑器件中合成的电路中的器件元件的相对定时。 通过适当地调节器件元件的相对定时,有效地减小了电路关键路径长度,从而提高了电路频率性能。 提供算法来建立时钟偏移值,从而改善电路性能。 这些算法被并入计算机辅助设计工具中,以实现电路设计的自动优化。

    Television tuning system
    60.
    发明授权
    Television tuning system 有权
    电视调谐系统

    公开(公告)号:US07095453B2

    公开(公告)日:2006-08-22

    申请号:US10401019

    申请日:2003-03-21

    申请人: Henry C. Yuen

    发明人: Henry C. Yuen

    IPC分类号: H04N5/50

    摘要: An improved television control system includes a tuner (15), a memory (13), a keyboard (14) and a controller (11). The tuner (15) selects one channel from a multi-channel television signal based upon a channel selection input. The multi-channel television signal carries the signals for a set of received television channels. The memory (13) contains a favorite channel list that includes a list of channel identifiers, each channel identifier corresponding to one of a subset of the set of channels received by the tuner (15). The keyboard (14) includes a favorite channel button (16) and a favorite program button (16) as well as a numeric keypad (30) and channel up/down keys (28).

    摘要翻译: 改进的电视控制系统包括调谐器(15),存储器(13),键盘(14)和控制器(11)。 调谐器(15)基于频道选择输入从多声道电视信号中选择一个频道。 多声道电视信号携带一组接收到的电视频道的信号。 存储器(13)包含喜好频道列表,其包括频道标识符列表,每个频道标识符对应于由调谐器(15)接收的频道组的子集中的一个。 键盘(14)包括喜爱频道按钮(16)和收藏节目按钮(16)以及数字小键盘(30)和频道上/下键(28)。