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1. 发明公开

EP2804020A3 Electronic marker locator systems and methods 审中-公开
标题翻译： Elektronische Markerlokalisierungssysteme und Verfahren
公开(公告)号：EP2804020A3
公开(公告)日：2015-07-22
申请号：EP14167779.9
申请日：2014-05-09
申请人： RADIODETECTION LIMITED
发明人： Pearson, Richard David , Thompson, Jeffrey Richard , Poyner, Julian
IPC分类号： G01V3/10
CPC分类号： G01V3/104 , G01V3/108
摘要： A locator for determining the depth of a buried electromagnetic marker comprises a transmission antenna and two reception antennas. The locator has a major axis and is used with the major axis substantially perpendicular to a ground surface. The transmission antenna generates an oscillatory magnetic field parallel to the major axis. The first reception antenna couples with an oscillatory magnetic field parallel to the major axis emitted by the electromagnetic marker and generates a first detected signal. The second reception antenna is displaced along the major axis from the first antenna and configured to couple with a oscillatory magnetic field parallel to the major axis emitted by the electromagnetic marker and to generate a second detected signal. The locator comprises analogue to digital converters which are configured to digitise the first and second detected signals and a processor which is configured to calculate the depth of the electromagnetic marker.
摘要翻译：用于确定掩埋电磁标记的深度的定位器包括发射天线和两个接收天线。定位器具有长轴，并且与基本上垂直于地面的长轴一起使用。发射天线产生平行于长轴的振荡磁场。第一接收天线与平行于由电磁标记发射的长轴的振荡磁场耦合，并产生第一检测信号。第二接收天线沿着主轴从第一天线位移，并且被配置为与平行于由电磁标记发射的主轴的振荡磁场耦合，并产生第二检测信号。定位器包括被配置为数字化第一和第二检测信号的模数转换器，以及被配置为计算电磁标记的深度的处理器。

2. 发明公开

EP2804020A2 Electronic marker locator systems and methods 审中-公开
标题翻译：电子标志定位系统和方法
公开(公告)号：EP2804020A2
公开(公告)日：2014-11-19
申请号：EP14167779.9
申请日：2014-05-09
申请人： RADIODETECTION LIMITED
发明人： Pearson, Richard David , Thompson, Jeffrey Richard , Poyner, Julian
IPC分类号： G01V3/10
CPC分类号： G01V3/104 , G01V3/108
摘要： A locator for determining the depth of a buried electromagnetic marker comprises a transmission antenna and two reception antennas. The locator has a major axis and is used with the major axis substantially perpendicular to a ground surface. The transmission antenna generates an oscillatory magnetic field parallel to the major axis. The first reception antenna couples with an oscillatory magnetic field parallel to the major axis emitted by the electromagnetic marker and generates a first detected signal. The second reception antenna is displaced along the major axis from the first antenna and configured to couple with a oscillatory magnetic field parallel to the major axis emitted by the electromagnetic marker and to generate a second detected signal. The locator comprises analogue to digital converters which are configured to digitise the first and second detected signals and a processor which is configured to calculate the depth of the electromagnetic marker.

3. 发明授权

EP2096464B1 System for and method of detecting a buried conductor 有权
标题翻译：系统和方法，用于检测隐藏的导体
公开(公告)号：EP2096464B1
公开(公告)日：2014-01-22
申请号：EP09250546.0
申请日：2009-02-27
申请人： RADIODETECTION LIMITED
发明人： Royle, John Mark , Thompson, Jeff
IPC分类号： G01V3/08 , G01V3/15
CPC分类号： G01V3/08 , G01V3/15

4. 发明授权

EP2098888B1 A detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor 有权
标题翻译：检测器，用于计算所引起的电磁场的隐藏的载流导体上的失真
公开(公告)号：EP2098888B1
公开(公告)日：2012-04-18
申请号：EP09250557.7
申请日：2009-02-27
申请人： RADIODETECTION LIMITED
发明人： Royle, John Mark , Pearson, Richard David
IPC分类号： G01V3/08
CPC分类号： G01V3/081

5. 发明公开

EP2098888A3 A detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor 有权
标题翻译：检测器，用于计算所引起的电磁场的隐藏的载流导体上的失真
公开(公告)号：EP2098888A3
公开(公告)日：2011-03-23
申请号：EP09250557.7
申请日：2009-02-27
申请人： RADIODETECTION LIMITED
发明人： Royle, John Mark , Pearson, Richard David
IPC分类号： G01V3/08
CPC分类号： G01V3/081
摘要： A detector 1 for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor 25 comprises three antennas B, M, T. Outputs of two pairs of antennas are compared and the depth of the buried conductor 25 is calculated using two different methods. If there is a significant difference in the two calculated depths then it is deemed that the electromagnetic field produced by the buried current carrying conductor 25 is significantly distorted by the material in which the conductor is buried.

6. 发明公开

EP2096466A3 A detector for detecting a current carrying conductor and a method of validating operation of the detector 有权
标题翻译：检测器，用于检测载流导体和方法，用于检查检测器的操作
公开(公告)号：EP2096466A3
公开(公告)日：2011-03-02
申请号：EP09250563.5
申请日：2009-02-27
申请人： RADIODETECTION LIMITED
发明人： Pearson Richard David , Conway, Kevin
IPC分类号： G01V3/08
摘要： A detector 5 for detecting a buried conductor 7 comprises a plurality of antennas B, T. Each antenna B, T has a winding 29 wound around the antenna, the winding 29 being connected to a current source 31 for providing a predefined current in the winding 29. When the predefined current is applied to the winding 29 an electromagnetic field is generated at the antenna which induces a test current in the antenna. The test current is compared to calibration data stored in the detector 5 to validate the correct operation of the detector 5.

7. 发明公开

EP2096465A2 System for and method of detecting a buried conductor 有权
标题翻译：埋地导体检测系统和方法
公开(公告)号：EP2096465A2
公开(公告)日：2009-09-02
申请号：EP09250556.9
申请日：2009-02-27
申请人： RADIODETECTION LIMITED
发明人： Royle, John Mark
IPC分类号： G01V3/08
CPC分类号： G01V3/081
摘要： A system 1 for detecting a buried conductor 3 comprises a transmitter 5 for producing an alternating test current in the buried conductor 3 and a receiver 7 for detecting an electromagnetic field 11 produced by the test current in the buried conductor 3. A communication link is provided between the receiver 7 and the transmitter 5. The test current comprises first and second components of different frequency. The receiver 7 monitors the phase creepage of the first and second components and controls the transmitter 7 to reset the phase difference between the first and second components as phase creepage increases.
摘要翻译：用于检测掩埋导体3的系统1包括用于在掩埋导体3中产生交变测试电流的发射器5以及用于检测掩埋导体3中的测试电流产生的电磁场11的接收器7.通信链路被提供在接收机7和发射机5之间。测试电流包括不同频率的第一和第二分量。接收器7监测第一和第二部件的相位爬电，并且当相位爬电增加时控制发射器7以重置第一和第二部件之间的相位差。

8. 发明公开

EP1899737A1 A RADIO MODE SELECTIVITY BLOCK FOR A DETECTOR FOR DETECTING A BURIED CURRENT CARRYING CONDUCTOR 有权
标题翻译：无线电模式选择模块用于检测载流导体的掩埋检测器
公开(公告)号：EP1899737A1
公开(公告)日：2008-03-19
申请号：EP06744126.1
申请日：2006-06-06
申请人： RADIODETECTION LIMITED
发明人： PEARSON, Richard
IPC分类号： G01R29/08 , G01V3/10
CPC分类号： G01R29/085
摘要： A radio mode selectivity block (41) for a detector (1) for detecting a buried current carrying conductor comprises a plurality of beat frequency oscillators (53) to centre the bandwidth of detection of the detector (1) on target very low frequency (VLF) frequency bands. The frequencies of the beat frequency oscillators are chosen to fall within the VLF frequency bands used in a number of countries, so that the detector (1) can be used in radio mode in these countries without the need for local configuration.

9. 发明公开

EP1481391A1 METHODS AND SYSTEMS FOR GENERATING PHASE-DERIVATIVE SOUND 有权
标题翻译：用于产生声音的方法和系统衍生自PHASE
公开(公告)号：EP1481391A1
公开(公告)日：2004-12-01
申请号：EP03739578.7
申请日：2003-02-14
申请人： Radiodetection Limited
发明人： Royle, John Mark , PEARSON, Richard, David , KING, James Ian
IPC分类号： G10L21/02
CPC分类号： H04R5/04 , G10K15/02
摘要： Methods and systems for digitally generating sound from phase and amplitude information of a narrow bandwidth signal, such as a narrow bandwidth locator signal. Phase-derivative information is determined from the phase information. The bandwidth of the phase-derivative information is spread out, or stretched, over a wider bandwidth, so that the frequency variations will be more perceptible to users. The result is combined with an audio band carrier frequency, the result of which controls an oscillator. The oscillator output is combined with the amplitude information to generate an analog audio signal that is modulated with the amplitude information and the phase-derivative information. The amplitude information wider bandwidth phase-derivative information are used to modulate an audio carrier in both frequency and amplitude. The overall process can be thought of as a translation of the frequency and amplitude information from the narrow bandwidth around the locate frequency to a wider bandwidth on a chosen carrier frequency in the audio band. The received amplitude and phase information is received at an input sample rate. Where the input sample rate is relatively low, the amplitude and phase information are up-sampled to an output sample rate that is higher than a desired audio frequency. The higher output sample rate insures that there are sufficient samples of the signal during each cycle or period of the audio frequency. The higher sample rate is typically also the sample rate of a digital to analog converter that outputs an analog signal to a speaker. The amplitude information and/or phase derivative information are optionally scaled to system gain. The sound heard by the operator can optionally be adjusted with an optional selectivity filter.

10. 发明公开

EP1217391A3 Conductor tracing system 审中-公开
标题翻译：一种用于检测电导体的方法
公开(公告)号：EP1217391A3
公开(公告)日：2003-06-18
申请号：EP01310115.9
申请日：2001-12-03
申请人： RADIODETECTION LIMITED
发明人： Flatt, David William
IPC分类号： G01V3/08 , G01V3/06
CPC分类号： G01V3/06
摘要： A system for tracing routes of conductors has a transmitter (10) for applying an alternating signal (11) to the conductor to be traced (12), and the field produced by this signal is detected remotely from the conductor. In order to distinguish between the field produced by the conductor being traced and the fields produced by nearby conductors (14) due to capacitive coupling (17), the alternating signal has phase-locked first and second components with frequencies F 1 and F 2 respectively, related by N × F 1 = M × F 2 , where N and M are non-adjacent integers greater than 1, one of which is odd and one of which is even, having no common factors. The field is detected at a plurality of positions. The phase relationship of the detected signals is investigated to determine unambiguously the position of the object concerned.

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