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1. 发明授权

EP0362984B1 Signal discrimination system 失效
标题翻译：系统信号的歧视。
公开(公告)号：EP0362984B1
公开(公告)日：1995-01-18
申请号：EP89304507.0
申请日：1989-05-04
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R. , Eckhardt, David A.
IPC分类号： G01S13/82
CPC分类号： G01S13/82

2. 发明公开

EP0438250A1 System for reading and writing data from and into remote tags 有权转让
标题翻译： System zum Lesen und Schreiben von Daten von und auf entfernten Marken。
公开(公告)号：EP0438250A1
公开(公告)日：1991-07-24
申请号：EP91300244.0
申请日：1991-01-14
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R.
IPC分类号： G08G1/017 , B61L25/04
CPC分类号： G07B15/063 , B61L25/048 , G06K7/0008 , G08G1/017
摘要： The subject invention relates to a system for identifying, for writing data into and reading data out of electronic tags which may be attached to moving and moveable objects. An interrogator sends an RF signal to a remote tag, the signal including data intended to be received and stored in the tag. The tag backscatter-modulates the received signal with data temporarily and permanently stored in the tag, including data indicating the identity of the object to which the tag is attached. The interrogator has the capability of (1) recognizing the identity of the tagged object from the returned backscatter-modulates signal and (2) transmitting data to the tag only if it has data to be transmitted to that particular tagged object. This permits data to be selectively transmitted to a tag and received and stored by that tag only after the tag has been identified as a correct one to receive that data. The tag, in addition, may have the capability of increasing its sensitivity to the receipt of transmitted data after receiving a signal from the interrogator of sufficient strength to be capable of transmitting data to that tag.
摘要翻译：本发明涉及一种用于识别用于将数据写入并从其中读取数据的系统，电子标签可附接到移动和可移动的对象。询问器将RF信号发送到远程标签，该信号包括要被接收并存储在标签中的数据。标签利用数据临时和永久地存储在标签中的数据进行反向散射调制接收的信号，包括指示标签附加到的对象的身份的数据。询问器具有以下能力：（1）从所返回的后向散射调制信号中识别标记对象的身份，以及（2）只有当数据要发送到该特定标记对象的数据时才传送到标签。这允许选择性地将数据传输到标签，并且仅在标签被识别为正确的标签才能接收和存储该标签以便接收该数据。此外，标签可以具有在从询问器接收到具有足够强度的信号以能够向该标签发送数据之后增加对接收发送数据的灵敏度的能力。

3. 发明公开

EP0362984A3 Signal discrimination system 失效
标题翻译：信号辨识系统
公开(公告)号：EP0362984A3
公开(公告)日：1991-05-08
申请号：EP89304507.0
申请日：1989-05-04
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R. , Eckhardt, David A.
IPC分类号： G01S13/82
CPC分类号： G01S13/82
摘要： The invention provides a system for discriminating between modulated backscattered signals based upon transmission-to-reception time delay. The system employs a carrier, phase-modulated with a modulating signal, having characteristics which provide unity output when correlated with itself with zero time shift and a substantially lower output level when correlated with itself with a significant time shift. The system works with a backscatter-modulator located a finite distance from the transmitter for receiving and modulating the backscatter of the carrier. A receiver/detector receives and detects the modulated backscattered phase-modulated signal, the detector being phase-sensitive and having as a reference signal the transmitted phase-modulating carrier signal, and having as an input signal the phase modulated backscattered carrier. The detector provides an output signal whose averaged amplitude is substantially dependent upon the degree of phase correlation between the phase of the modulation returned input signal and the reference signal. Finally, the output signal from the detector is selectively processed only when its averaged amplitude is above a threshold level. In a preferred embodiment the transmitted signal is a spread spectrum signal.

4. 发明授权

EP0382969B1 Range limiting system 失效转让
标题翻译：范围限制系统
公开(公告)号：EP0382969B1
公开(公告)日：1996-01-10
申请号：EP89310751.6
申请日：1989-10-19
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R. , Eckhardt, David A.
IPC分类号： G01S13/82
CPC分类号： G01S13/82

5. 发明公开

EP0382969A2 Range limiting system 失效转让
标题翻译：范围限制系统
公开(公告)号：EP0382969A2
公开(公告)日：1990-08-22
申请号：EP89310751.6
申请日：1989-10-19
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R. , Eckhardt, David A.
IPC分类号： G01S13/82
CPC分类号： G01S13/82
摘要： A range limiting system for differentiating desired received signals having an amplitude above a predetermined threshold level and at least one other recognizable predetermined characteristic, from other received signals below said predetermined threshold amplitude, comprising:
means for combining said received signal of unknown amplitude, which may be above or below said predetermined threshold amplitude, with a known signal of said predetermined amplitude having at least one other predetermined characteristic which is distinguishable from said other recognizable characteristic of said received signal; and
signal processing means having the combined signal as its input and which produces an output signal whose other recognizable characteristic is determined by said received signal only when said received signal is above said predetermined threshold amplitude, and by said known signal when said received signal is below said predetermined threshold amplitude, whereby the presence or absence of said desired received signal may be determined on the basis of analysis of said other predetermined characteristic of said output signal of said signal processing means.
摘要翻译：一种用于区分具有高于预定阈值电平的幅度的期望接收信号和至少一个其它可识别的预定特性与低于所述预定阈值幅度的其它接收信号的范围限制系统，包括：用于组合所述未知幅度的接收信号的装置，高于或低于所述预定阈值幅度，所述预定幅度的已知信号具有至少一个与所述接收信号的所述其他可识别特性可区分的至少一个其他预定特性; 以及信号处理装置，其组合信号作为其输入并产生一个输出信号，该输出信号的其它可识别特性只有当所述接收信号高于所述预定阈值幅度时由所述接收信号确定，而当所述接收信号低于所述已知信号时所述预定阈值幅度，由此可以基于对所述信号处理装置的所述输出信号的所述另一预定特性的分析来确定所述期望接收信号的存在或不存在。

6. 发明授权

EP0438250B1 System for reading and writing data from and into remote tags 有权转让
标题翻译：系统读取和写入数据，并从远程品牌
公开(公告)号：EP0438250B1
公开(公告)日：1996-06-19
申请号：EP91300244.0
申请日：1991-01-14
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R.
IPC分类号： G08G1/017 , B61L25/04
CPC分类号： G07B15/063 , B61L25/048 , G06K7/0008 , G08G1/017

7. 发明授权

EP0344885B1 Beam powered antenna 失效转让
标题翻译：反射天线。
公开(公告)号：EP0344885B1
公开(公告)日：1995-01-18
申请号：EP89302536.1
申请日：1989-03-15
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A.
IPC分类号： G01S13/02 , H01Q9/06 , H01Q1/24
CPC分类号： G01S13/755 , G01S13/758 , G06K7/10009 , H01Q1/247 , H01Q9/26

8. 发明公开

EP0382969A3 Range limiting system 失效转让
标题翻译：范围限制系统
公开(公告)号：EP0382969A3
公开(公告)日：1991-05-02
申请号：EP89310751.6
申请日：1989-10-19
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R. , Eckhardt, David A.
IPC分类号： G01S13/82
CPC分类号： G01S13/82
摘要： A range limiting system for differentiating desired received signals having an amplitude above a predetermined threshold level and at least one other recognizable predetermined characteristic, from other received signals below said predetermined threshold amplitude, comprising:
means for combining said received signal of unknown amplitude, which may be above or below said predetermined threshold amplitude, with a known signal of said predetermined amplitude having at least one other predetermined characteristic which is distinguishable from said other recognizable characteristic of said received signal; and
signal processing means having the combined signal as its input and which produces an output signal whose other recognizable characteristic is determined by said received signal only when said received signal is above said predetermined threshold amplitude, and by said known signal when said received signal is below said predetermined threshold amplitude, whereby the presence or absence of said desired received signal may be determined on the basis of analysis of said other predetermined characteristic of said output signal of said signal processing means.

9. 发明公开

EP0344885A3 Beam powered antenna 失效转让
标题翻译：光束天线
公开(公告)号：EP0344885A3
公开(公告)日：1990-12-19
申请号：EP89302536.1
申请日：1989-03-15
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A.
IPC分类号： G01S13/02 , H01Q9/06 , H01Q1/24
CPC分类号： G01S13/755 , G01S13/758 , G06K7/10009 , H01Q1/247 , H01Q9/26
摘要： The invention relates to an antenna for receiving and modulating transmitted signals having a very low power density on the order of below 1 watt per meter squared, at a selected center frequency above 2,000 MHz. The antenna uses a folded planar dipole section having two separated oppositely disposed U-shape elements, each of said elements having a pair of ends. A capacitor is series-coupled between two of the oppositely disposed ends of the elements, and a diode having a high impedance at the selected center frequency is series-coupled between the other two oppositely disposed ends of the U-shape elements. A metallic backplane is mounted parallel to the planar folded dipole section and spaced from the dipole section a predetermined distance selected to reduce the antenna impedance. The impedance of the diode, the shape of the folded planar diode section and the predetermined amount of spacing of the backplane from the planar folded dipole section are all selected to increase the d.c. power output of the antenna.

10. 发明公开

EP0362984A2 Signal discrimination system 失效
标题翻译：系统zur Discrimination von Signalen。
公开(公告)号：EP0362984A2
公开(公告)日：1990-04-11
申请号：EP89304507.0
申请日：1989-05-04
申请人： AMTECH SYSTEMS CORPORATION
发明人： Landt, Jeremy A. , Koelle, Alfred R. , Eckhardt, David A.
IPC分类号： G01S13/82
CPC分类号： G01S13/82
摘要： The invention provides a system for discriminating between modulated backscattered signals based upon transmission-to-reception time delay. The system employs a carrier, phase-modulated with a modulating signal, having characteristics which provide unity output when correlated with itself with zero time shift and a substantially lower output level when correlated with itself with a significant time shift. The system works with a backscatter-modulator located a finite distance from the transmitter for receiving and modulating the backscatter of the carrier. A receiver/detector receives and detects the modulated backscattered phase-modulated signal, the detector being phase-sensitive and having as a reference signal the transmitted phase-modulating carrier signal, and having as an input signal the phase modulated backscattered carrier. The detector provides an output signal whose averaged amplitude is substantially dependent upon the degree of phase correlation between the phase of the modulation returned input signal and the reference signal. Finally, the output signal from the detector is selectively processed only when its averaged amplitude is above a threshold level. In a preferred embodiment the transmitted signal is a spread spectrum signal.
摘要翻译：本发明提供一种用于基于发送到接收时间延迟来区分调制后向散射信号的系统。该系统采用具有调制信号相位调制的载波，具有当与自身相关的零时间偏移时提供单位输出的特性，以及当与自身以显着的时间偏移相关时，其显着降低的输出电平。该系统与位于离发射机有限距离的后向散射调制器一起工作，用于接收和调制载波的后向散射。接收器/检测器接收并检测调制的反向散射相位调制信号，检测器是相敏的，并且具有作为参考信号的传输的相位调制载波信号，并且具有作为相位调制后向散射载波的输入信号。检测器提供输出信号，其平均幅度基本上取决于调制返回的输入信号的相位与参考信号之间的相位相关程度。最后，只有当其平均幅度高于阈值电平时，来自检测器的输出信号才被选择性地处理。在优选实施例中，发射信号是扩频信号。

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