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    • 12. 发明授权
    • Radio frequency automatic identification system
    • 射频自动识别系统
    • US5891240A
    • 1999-04-06
    • US431095
    • 1995-04-27
    • Morton Greene
    • Morton Greene
    • C30B29/18C30B33/00G01S20060101G01S13/75G06K7/00G06K7/10G06K19/067G06K19/07G08B13/24
    • G08B13/2414C30B29/18C30B33/00G01S13/753G06K19/0672G06K19/07G06K19/0723G06K7/0008G06K7/10009G08B13/2417G08B13/2422G08B13/244G08B13/2442G08B13/2445G08B13/2471G08B13/2482Y10S117/902Y10T117/1008
    • A radio frequency automatic identification system detects targets which include solid resonators resonating at several frequencies, attributing information to the frequencies at which the target resonates. Preferred resonators are quartz crystals, which may be made by a process of heating quartz to soften it and cutting crystals to approximate size and resonant frequency. Resonators produced by such a process are measured to determine their actual resonant frequency, and preferably the crystals are sorted into predetermined frequency windows in accordance with their measured resonant frequency. A set of resonators having frequencies corresponding to predetermined data is selected from the sorted groups of resonators and incorporated into a target. The preferred target is an ink-like material having a plurality of resonators disposed in a matrix which is radio frequency transparent at the frequency of interest. Targets are preferably detected by repetitively sweeping the frequency of the interrogating signal through a range which includes the information-bearing range of the system.
    • 射频自动识别系统检测包括以多个频率谐振的固体谐振器的目标,将信息归因于目标谐振的频率。 优选的谐振器是石英晶体,其可以通过加热石英来软化并切割晶体以接近尺寸和谐振频率的过程来制造。 测量通过这种处理产生的谐振器以确定它们的实际谐振频率,并且优选地,晶体根据其测量的谐振频率被分类到预定频率窗口中。 从分类的谐振器组中选择具有与预定数据对应的频率的一组谐振器,并将其合并到目标中。 优选的目标是具有设置在矩阵中的多个谐振器的油墨状材料,其以感兴趣的频率是射频透明的。 优选通过重复地扫描询问信号的频率通过包括系统的信息承载范围的范围来检测目标。
    • 13. 发明授权
    • Multi-dimensional signal processing and display
    • 多维信号处理和显示
    • US5455806A
    • 1995-10-03
    • US367787
    • 1994-12-30
    • William H. Hutson
    • William H. Hutson
    • A61B8/00G01S20060101G01S3/802G01S7/20G01S7/62G01S11/14G01S15/00G01S15/89G01V1/28G06F17/00G06T11/00
    • G01V1/28G01S11/14G01S15/899G01S3/802G01S7/20G01S7/6245G01V2210/56Y10S367/901
    • A multi-dimensional acoustic data processing and display system arranges acoustic data in a three-dimensional matrix. The three-dimensional matrix is compressed using singular value decomposition into singular vectors and singular values. A historical database is created and maintained and is also concatenated with the three-dimensional data. This database allows reverberation and noise to be diminished and other, weaker features in the data to be enhanced. Once the data is compressed, the data can be analyzed efficiently. The singular vectors are partitioned into one or more groups on the basis of their singular values or other criteria. Certain of the compressed data elements are enhanced or diminished by modifying the singular values within each of the groups of singular vectors. Selected singular vectors are processed further by other techniques for further enhancement, detection, isolation, feature extraction and classification. The compressed and enhanced data is then expanded back into three-dimensional form for display or for other processing.
    • 多维声学数据处理和显示系统将声学数据排列在三维矩阵中。 使用奇异值分解将三维矩阵压缩为奇异向量和奇异值。 创建和维护历史数据库,并将其与三维数据进行连接。 该数据库允许混响和噪声减弱,数据中的其他较弱的特征将得到增强。 数据压缩后,可以有效地分析数据。 基于它们的奇异值或其他标准将奇异向量划分成一个或多个组。 某些压缩数据元素通过修改每个奇异矢量组内的奇异值来增强或减弱。 通过其他技术进一步处理所选择的奇异载体,用于进一步增强,检测,分离,特征提取和分类。 然后将压缩和增强的数据扩展回三维形式进行显示或进行其他处理。
    • 14. 发明授权
    • Radio frequency automatic identification system
    • 射频自动识别系统
    • US5291205A
    • 1994-03-01
    • US978825
    • 1992-11-19
    • Morton Greene
    • Morton Greene
    • C30B29/18C30B33/00G01S20060101G01S13/75G06K7/00G06K7/10G06K19/067G06K19/07G08B13/24G01S13/74
    • G08B13/2414C30B29/18C30B33/00G01S13/753G06K19/0672G06K19/07G06K19/0723G06K7/0008G06K7/10009G08B13/2417G08B13/2422G08B13/244G08B13/2442G08B13/2445G08B13/2471G08B13/2482Y10S117/902Y10T117/1008
    • A radio frequency automatic identification system detects targets which include solid resonators resonating at several frequencies, attributing information to the frequencies at which the target resonates. Preferred resonators are quartz crystals, which may be made by a process of heating quartz to soften it and cutting crystals to approximate size and resonant frequency. Resonators produced by such a process are measured to determine their actual resonant frequency, and preferably the crystals are sorted into predetermined frequency windows in accordance with their measured resonant frequency. A set of resonators having frequencies corresponding to predetermined data is selected from the sorted groups of resonators and incorporated into a target. The preferred target is an ink-like material having a plurality of resonators disposed in a matrix which is radio frequency transparent at the frequency of interest. Targets are preferably detected by repetitively sweeping the frequency of the interrogating signal through a range which includes the information-bearing range of the system.
    • 射频自动识别系统检测包括以多个频率谐振的固体谐振器的目标,将信息归因于目标谐振的频率。 优选的谐振器是石英晶体,其可以通过加热石英来软化并切割晶体以接近尺寸和谐振频率的过程来制造。 测量通过这种处理产生的谐振器以确定它们的实际谐振频率,并且优选地,晶体根据其测量的谐振频率被分类到预定频率窗口中。 从分类的谐振器组中选择具有与预定数据对应的频率的一组谐振器,并将其合并到目标中。 优选的目标是具有设置在矩阵中的多个谐振器的油墨状材料,其以感兴趣的频率是射频透明的。 优选通过重复地扫描询问信号的频率通过包括系统的信息承载范围的范围来检测目标。
    • 16. 发明授权
    • Navigation system
    • 导航系统
    • US4628319A
    • 1986-12-09
    • US514827
    • 1983-06-16
    • Bo A. MorwingBengt L. AnderssonPer-Olof G. Gustavsson
    • Bo A. MorwingBengt L. AnderssonPer-Olof G. Gustavsson
    • G01S20060101G01S13/76G01S13/80G01S13/74
    • G01S13/76
    • A navigation system including at least one pulse radar and a number of transponders which when receiving radar pulses transmit high frequency pulse modulated signals. When receiving an interrogating signal from the pulse radar the transponder transmits a response signal with a delay. The delay is selected in such a manner that the response signal arrives at the pulse radar within a time space lying between the moment when all signal echos, lying within a definite range, have been received and the moment when the next radar pulse begins. The display scan in the radar is delayed by the same value as the response signal. In this way the response signal competes with considerably weaker echo signals than in the case of a non delayed response.
    • PCT No.PCT / SE82 / 00364 Sec。 371日期:1983年6月16日 102(e)日期1983年6月16日PCT申请日为1982年11月2日PCT公布。 出版物WO83 / 01838 日期:1983年5月26日。一种导航系统,包括至少一个脉冲雷达和多个转发器,当接收雷达脉冲时发送高频脉冲调制信号。 当从脉冲雷达接收询问信号时,应答器发送具有延迟的响应信号。 以这样的方式选择延迟,使得响应信号在位于处于一定范围内的所有信号回波已经被接收到下一个雷达脉冲开始的时刻之间的时间空间内到达脉冲雷达。 雷达中的显示扫描延迟与响应信号相同的值。 以这种方式,响应信号与非延迟响应的情况相比,具有相当弱的回波信号。