Method and apparatus for accelerating image data compression
    171.
    发明授权
    Method and apparatus for accelerating image data compression 失效
    加速图像数据压缩的方法和装置

    公开(公告)号:US6115496A

    公开(公告)日:2000-09-05

    申请号:US9500

    申请日:1998-01-20

    CPC classification number: G06T9/00 G06T9/005

    Abstract: The present invention is directed to systems and methods for compressing image data while at the same time, the speed of compression, the compression ratio (that is, reduced memory requirements) and the perceptibility of the decompressed image, even when the image data is compressed without segregation into its scanned and non-scanned components. Exemplary embodiments achieve such improved perceptibility regardless of whether the images are monochrome (having varying grey scale values) or color. In addition, improved perceptibility is realized in a manner which permits image data including scanned and/or unscanned images to be compressed in real-time.

    Abstract translation: 本发明涉及用于压缩图像数据的系统和方法,同时压缩速度,压缩比(即,降低的存储器要求)和解压缩图像的感知性,即使当图像数据被压缩时 没有隔离到其扫描和未扫描的组件。 无论图像是单色(具有变化的灰度值)还是颜色,示例性实施例实现这种改进的感知性。 此外,以允许包括扫描和/或未扫描图像的图像数据被实时压缩的方式实现改进的感知性。

    Method and apparatus for synchronization of data retrieval and
presentation
    172.
    发明授权
    Method and apparatus for synchronization of data retrieval and presentation 有权
    用于数据检索和呈现同步的方法和装置

    公开(公告)号:US6098126A

    公开(公告)日:2000-08-01

    申请号:US181074

    申请日:1998-10-27

    Abstract: An apparatus for synchronizing data retrieval is described. The apparatus comprises a storage media storing data, a storage control device coupled to the storage media for retrieving the data from the storage media, memory coupled to the storage control device for storing the data; and a scheduling unit coupled to the memory for scheduling retrieval of the data from the storage media before a specified time. A storage media for storing computer instructions is also described. The storage media comprises a first plurality of processor executable instructions for instructing a computer system to schedule retrieval of data from a storage device before a specified time, a second plurality of processor executable instructions for instructing the computer system to retrieve the data from the storage device before the specified time has elapsed, a third plurality of processor executable instructions for instructing the computer system to store the data from the storage device into memory, and a fourth plurality of processor executable instructions for instructing the computer system to process the data from the memory. A method for synchronizing data retrieval in a data processing system is also described. The method comprises determining a specified time for retrieving the data from a storage media, scheduling retrieval of the data from the storage media before the specified time, retrieving the data from the storage media before the specified time has elapsed, and processing the data from the storage media.

    Abstract translation: 描述用于同步数据检索的装置。 所述设备包括存储数据的存储介质,耦合到所述存储介质的用于从所述存储介质检索数据的存储控制设备,耦合到所述存储控制设备的用于存储所述数据的存储器; 以及调度单元,其耦合到所述存储器,用于在指定时间之前调度从所述存储介质检索所述数据。 还描述了用于存储计算机指令的存储介质。 存储介质包括用于指示计算机系统在指定时间之前从存储设备调度数据的检索的第一多个处理器可执行指令,用于指示计算机系统从存储设备检索数据的第二多个处理器可执行指令 在指定时间过去之前,用于指示计算机系统将数据从存储装置存储到存储器中的第三多个处理器可执行指令,以及用于指示计算机系统处理来自存储器的数据的第四多个处理器可执行指令 。 还描述了一种在数据处理系统中同步数据检索的方法。 该方法包括确定从存储介质检索数据的指定时间,在指定时间之前从存储介质调度数据检索,在经过指定时间之前从存储介质检索数据,以及处理来自 储存媒介。

    Method and apparatus for implementing atomic queues
    173.
    发明授权
    Method and apparatus for implementing atomic queues 失效
    用于实现原子队列的方法和装置

    公开(公告)号:US6094663A

    公开(公告)日:2000-07-25

    申请号:US52745

    申请日:1998-03-31

    CPC classification number: G06F9/52 Y10S707/99952 Y10S707/99953

    Abstract: Methods and apparatus for implementing queues without disabling interrupts or using locks are disclosed. According to one aspect of the present invention, a queue structure, which is accessible to a plurality of threads, that is suitable for use in a computer system includes a head node and a first data-containing node. The head node includes a head field and a disruption field that is arranged to indicate a number of times the queue structure is accessed. The first data-containing node, which is identified by the head field in the head node, includes a link field and a data field. In one embodiment, the head node also includes a rank field, which is arranged to identify a preference level associated with the plurality of threads. In such an embodiment, the head field may be the first field in the head node, the rank field may be the second field in the head node, and the disruption field may be the third field in the head node.

    Abstract translation: 公开了用于在不禁止中断或使用锁的情况下实现队列的方法和装置。 根据本发明的一个方面,适用于计算机系统的多个线程可访问的队列结构包括头节点和第一数据包含节点。 头节点包括头字段和中断字段,其被布置为指示队列结构被访问的次数。 由头部节点中的头部字段标识的第一数据包含节点包括链接字段和数据字段。 在一个实施例中,头节点还包括等级字段,其被布置为识别与多个线程相关联的偏好级别。 在这样的实施例中,头部区域可以是头部节点中的第一个场,等级域可以是头部节点中的第二个场,并且中断区域可以是头部节点中的第三个场。

    System for distributing font resources over a computer network
    177.
    发明授权
    System for distributing font resources over a computer network 失效
    通过计算机网络分发字体资源的系统

    公开(公告)号:US6073147A

    公开(公告)日:2000-06-06

    申请号:US872149

    申请日:1997-06-10

    CPC classification number: G06F17/214 G06K15/00 G06K2215/0022

    Abstract: A network system includes a font resource server that is accessible to all devices that communicate via the network. The font server contains the necessary information pertaining to the various types of fonts that may be required by users. This information describes the characters in a font in both a bitmap form and an outline form, so that either type of font information can be selectively employed at any given site. When a document is transmitted from the site of its creation to a remote site, the computer at the remote site first determines whether information pertaining to all of the fonts contained in the document is stored at the remote site. If not, the necessary font resources are downloaded from the font server to the remote site, via any suitable communication network. Once the resources have been downloaded, the document can be viewed and printed at the remote site.

    Abstract translation: 网络系统包括可通过网络通信的所有设备可访问的字体资源服务器。 字体服务器包含与用户可能需要的各种类型的字体有关的必要信息。 该信息以位图形式和轮廓形式描述字体中的字符,使得可以在任何给定位置选择性地使用任一类型的字体信息。 当将文档从其创建的站点发送到远程站点时,远程站点处的计算机首先确定与文档中包含的所有字体有关的信息是否存储在远程站点。 如果没有,则必要的字体资源通过任何合适的通信网络从字体服务器下载到远程站点。 一旦下载资源,可以在远程站点查看和打印文档。

    Method and system for synchronization in a wireless local area network
    178.
    发明授权
    Method and system for synchronization in a wireless local area network 失效
    用于无线局域网同步的方法和系统

    公开(公告)号:US06069887A

    公开(公告)日:2000-05-30

    申请号:US864101

    申请日:1997-05-28

    CPC classification number: H04J3/0664 H04J3/067 H04W4/06 H04W84/12

    Abstract: Aspects for achieving and utilizing synchronization among end stations in a wireless local area network (WLAN) are provided. In a method aspect, the method includes receiving a packet with a time synchronization field value from a first end station in a second end station of a communication group. The method further includes comparing upon receipt of the packet the time synchronization field value with a local time value in the second end station to determine whether the local time value requires updating to maintain synchronization between the first and second end stations. The comparing further determines whether a difference between the time synchronization field value and the local time value is greater than zero, and when the difference is greater than zero, the local time value is updated to the time synchronization field value. In a system aspect, the system includes at least two end stations, wherein each of the at least two end stations further includes a local clock unit, and a transmit/receive control unit coupled to the local clock unit. A time synchronization field register in the transmit/receive control unit stores a value of the local clock unit, with one of the at least two end stations comparing a time synchronization field register value of a packet upon receipt from another of the at least two end stations with a value of the local clock unit to determine whether updating of the local clock unit is necessary.

    Abstract translation: 提供了在无线局域网(WLAN)中实现和利用终端站之间的同步的方面。 在方法方面,该方法包括从通信组的第二终端站中的第一终端站接收具有时间同步字段值的分组。 该方法还包括:在接收到分组时将时间同步字段值与第二终端站中的本地时间值进行比较,以确定本地时间值是否需要更新以维持第一和第二终端站之间的同步。 该比较进一步确定时间同步字段值和本地时间值之间的差是否大于零,并且当差值大于零时,将本地时间值更新为时间同步字段值。 在系统方面,系统包括至少两个终端站,其中至少两个终端站中的每一个还包括本地时钟单元,以及耦合到本地时钟单元的发送/接收控制单元。 所述发送/接收控制单元中的时间同步字段寄存器存储本地时钟单元的值,所述至少两个终端站中的一个终端站在从所述至少两端中的另一端接收到的数据包的时间同步字段寄存器值进行比较时, 具有本地时钟单元的值的站以确定是否需要更新本地时钟单元。

    Method and apparatus for improved duration modeling of phonemes

    公开(公告)号:US6064960A

    公开(公告)日:2000-05-16

    申请号:US993940

    申请日:1997-12-18

    CPC classification number: G10L13/10 G10L13/04 G10L13/08

    Abstract: A method and an apparatus for improved duration modeling of phonemes in a speech synthesis system are provided. According to one aspect, text is received into a processor of a speech synthesis system. The received text is processed using a sum-of-products phoneme duration model that is used in either the formant method or the concatenative method of speech generation. The phoneme duration model, which is used along with a phoneme pitch model, is produced by developing a non-exponential functional transformation form for use with a generalized additive model. The non-exponential functional transformation form comprises a root sinusoidal transformation that is controlled in response to a minimum phoneme duration and a maximum phoneme duration. The minimum and maximum phoneme durations are observed in training data. The received text is processed by specifying at least one of a number of contextual factors for the generalized additive model. An inverse of the non-exponential functional transformation is applied to duration observations, or training data. Coefficients are generated for use with the generalized additive model. The generalized additive model comprising the coefficients is applied to at least one phoneme of the received text resulting in the generation of at least one phoneme having a duration. An acoustic sequence is generated comprising speech signals that are representative of the received text.

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