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    • 3. 发明授权
    • Location estimation using image analysis
    • 使用图像分析进行位置估计
    • US09222783B2
    • 2015-12-29
    • US13401582
    • 2012-02-21
    • Aman KansalFeng Zhao
    • Aman KansalFeng Zhao
    • G06K9/00G01C21/20G06F17/30G01S5/16
    • G06F17/30241G01C21/20G01C21/206G01S5/16G06F17/30247G06F17/30265G06F17/30268G06K9/4642G06K9/4652G06K9/6202
    • An implementation of location estimation using image analysis is described. In this implementation, an image of a place is obtained and matched with previously stored images. The matching may be achieved by employing methods based on key feature extraction algorithm, color histogram analysis, pattern matching or other image comparison techniques. Upon determining a match, the location information associated with the image provides the location. The location information may be in the form of location tags or location keywords and the location information may be used by the user or other applications for the purposes of location determination. The technique allows for the user to enter location information. The location information may be assigned to the previously stored images residing in local and remote databases for users and applications to assign information or keywords to images.
    • 描述使用图像分析的位置估计的实现。 在该实现中,获得位置的图像并与先前存储的图像匹配。 可以通过采用基于关键特征提取算法,颜色直方图分析,模式匹配或其他图像比较技术的方法来实现匹配。 在确定匹配时,与图像相关联的位置信息提供位置。 位置信息可以是位置标签或位置关键字的形式,并且位置信息可以由用户或其他应用用于位置确定的目的。 该技术允许用户输入位置信息。 位置信息可以被分配给驻留在本地和远程数据库中的先前存储的图像,供用户和应用将信息或关键词分配给图像。
    • 4. 发明授权
    • Dynamic community-based cache for mobile search
    • 动态基于社区的移动搜索缓存
    • US08943043B2
    • 2015-01-27
    • US12692626
    • 2010-01-24
    • Dimitrios LymberopoulosEmmanouil KoukoumidisJie LiuFeng ZhaoDouglas Christopher Burger
    • Dimitrios LymberopoulosEmmanouil KoukoumidisJie LiuFeng ZhaoDouglas Christopher Burger
    • G06F17/00G06F17/30
    • G06F17/30902
    • A “Community-Based Mobile Search Cache” provides various techniques for maximizing the number of query results served from a local “query cache”, thereby significantly limiting the need to connect to the Internet or cloud using 3G or other wireless links to service search queries. The query cache is constructed remotely and downloaded to mobile devices. Contents of the query cache are determined by mining popular queries from mobile search logs, either globally or based on queries of one or more groups or subgroups of users. In various embodiments, searching and browsing behaviors of individual users are evaluated to customize the query cache for particular users or user groups. The content of web pages related to popular queries may also be included in the query cache. This allows cached web pages to be displayed without first displaying cached search results when a corresponding search result has a sufficiently high click-through probability.
    • “基于社区的移动搜索缓存”提供了用于最大化从本地“查询缓存”提供的查询结果的数量的各种技术,从而显着地限制了使用3G或其他无线链路连接到因特网或云的服务搜索查询的需要 。 查询缓存是远程构建的,并被下载到移动设备。 查询缓存的内容是通过从全球范围内挖掘来自移动搜索日志的流行查询,或者基于一个或多个用户组或子组的查询来确定的。 在各种实施例中,评估各个用户的搜索和浏览行为以定制特定用户或用户组的查询缓存。 与流行查询相关的网页的内容也可以被包括在查询缓存中。 这样,当相应的搜索结果具有足够高的点击概率时,可以显示缓存的网页,而无需首先显示缓存的搜索结果。
    • 6. 发明申请
    • DISTANCE MEASUREMENTS BETWEEN COMPUTING DEVICES
    • 计算设备之间的距离测量
    • US20140064034A1
    • 2014-03-06
    • US13599823
    • 2012-08-30
    • Zengbin ZhangDavid Chiyuan ChuThomas MoscibrodaXiaomeng ChenFeng Zhao
    • Zengbin ZhangDavid Chiyuan ChuThomas MoscibrodaXiaomeng ChenFeng Zhao
    • G01S3/80
    • G01S11/14
    • Some implementations provide techniques and arrangements for distance measurements between computing devices. Some examples determine a distance between devices based at least in part on a propagation time of audio tones between the devices. Further, some examples determine the arrival time of the audio tones by performing autocorrelation on streaming data corresponding to recorded sound to determine a timing of an autocorrelation peak indicative of a detection of an audio tone in the streaming data. In some cases, cross correlation may be performed on the streaming data in a search window to determine a timing of a cross correlation peak indicative of the detection of the audio tone in the streaming data. The location of the search window in time may be determined based at least in part on the timing of the detected autocorrelation peak.
    • 一些实现提供了用于计算设备之间的距离测量的技术和布置。 一些示例至少部分地基于设备之间的音频音调的传播时间来确定设备之间的距离。 此外,一些示例通过对与记录的声音相对应的流数据执行自相关来确定音频音调的到达时间,以确定指示流数据中的音频音调的检测的自相关峰值的定时。 在一些情况下,可以在搜索窗口中对流数据执行互相关,以确定指示流数据中的音频音调的检测的互相关峰值的定时。 可以至少部分地基于检测到的自相关峰值的定时来确定搜索窗口在时间上的位置。