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公开(公告)号：US4963887A
公开(公告)日：1990-10-16
申请号：US399869
申请日：1989-08-29
CPC分类号： G06K7/10346 , G01S13/758 , G06K7/0008 , G06K7/10316
摘要： A full duplex transponder system includes an interrogation apparatus and a transponder apparatus. The transponder apparatus includes a reception antenna for receiving an interrogation signal wave whose carrier wave is phase- or frequency-modulated with an interrogation signal, a demodulator for demodulating the interrogation signal from the interrogation signal wave received by the antenna, a rectifier for rectifying the carrier wave of the interrogation signal wave received by the antenna and outputting a DC power used as a drive power source of the transponder apparatus, a multiplier for generating a predetermined harmonic component from the carrier wave of the interrogation signal wave received by the antenna, a modulator for amplitude-modulating the harmonic component with a response signal, and a transmission antenna for transmitting a response signal wave output from the modulator. The interrogation apparatus includes an oscillator for generating the carrier wave, a modulator for phase- or frequency-modulating the carrier wave generated by the oscillator with an interrogation signal, a transmission antenna for transmitting an interrogation signal wave output from the modulator, a reception antenna for receiving the response signal wave output from the transmission antenna of the transponder apparatus, and a demodulator for demodulating the response signal from the response signal wave received by the reception antenna.
摘要翻译： 全双工应答器系统包括询问装置和应答器装置。 应答器装置包括：接收天线，用于接收询问信号波，该询问信号波的载波与询问信号相位或频率调制;解调器，用于解调来自由天线接收的询问信号波的询问信号;整流器， 由天线接收到的询问信号波的载波，并输出用作应答器装置的驱动电源的DC电力;乘法器，用于从由天线接收的询问信号波的载波产生预定的谐波分量， 用于利用响应信号对谐波分量进行幅度调制的调制器，以及用于发送从调制器输出的响应信号波的发送天线。 询问装置包括用于产生载波的振荡器，用于使用询问信号对由振荡器产生的载波进行相位或频率调制的调制器，用于发送从调制器输出的询问信号波的发送天线，接收天线 用于接收从应答器装置的发送天线输出的响应信号波;以及解调器，用于解调来自由接收天线接收的响应信号波的响应信号。
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公开(公告)号：US5201060A
公开(公告)日：1993-04-06
申请号：US509955
申请日：1990-04-16
摘要： A baseband signal communication apparatus includes a transmission unit and a reception unit. The transmission unit superposes a subcarrier on one value of a baseband signal consisting of binary values, modulates a carrier with the baseband signal on which the subcarrier is superposed, and transmits the baseband signal as a transmission signal wave. The reception unit demodulates the baseband signal having the subcarrier superposed thereon by using a demodulator upon reception of the transmission signal wave, extracts the subcarrier from the demodulated signal by using a bandpass filter, and demodulates the baseband signal by causing a detector to detect an envelope of the subcarrier.
摘要翻译： 基带信号通信装置包括发送单元和接收单元。 传输单元将副载波叠加在由二进制值组成的基带信号的一个值上，对副载波叠加的基带信号进行调制，发送基带信号作为发送信号波。 接收单元在接收到发送信号波时通过使用解调器对具有叠加在其上的子载波的基带信号进行解调，通过使用带通滤波器从解调信号中提取副载波，并且通过使检测器检测到信封来解调基带信号 的子载波。
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公开(公告)号：US5119099A
公开(公告)日：1992-06-02
申请号：US526506
申请日：1990-05-21
IPC分类号： G08B13/24 , G01S13/75 , G01S13/76 , G01S13/79 , G01S13/82 , G06K7/10 , H01Q1/22 , H01Q9/28 , H02J17/00
CPC分类号： H01Q1/2225 , G01S13/758 , G06K7/10009 , H01Q1/22 , H01Q9/28
摘要： A microwave responder resonates or does not resonate with a microwave transmitted from a radio transmitter, and radiates the resonated microwave as a response signal wave. Two microstrip lines are linearly arranged to be separated from each other at a predetermined interval. A diode which is switched between ON and OFF states in response to the response signal is interposed between two end portions of the microstrip lines separated by the predetermined interval, and a distance, between distal ends of the two linearly arranged microstrip lines, which includes an impedance defined by the ON or OFF state of the diode is determined to be 1/2 a wavelength of the microwave.
摘要翻译： 微波响应器谐振或不与从无线电发射机发射的微波谐振，并且将谐振微波辐射作为响应信号波。 两条微带线被线性布置成以预定间隔彼此分开。 在响应于响应信号的ON和OFF状态之间切换的二极管被插入在以预定间隔分开的微带线的两个端部之间，并且两个线性排列的微带线的远端之间的距离包括 由二极管的ON或OFF状态限定的阻抗被确定为微波的1/2波长。
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公开(公告)号：US07557773B2
公开(公告)日：2009-07-07
申请号：US10553750
申请日：2004-04-16
申请人： Fusao Sekiguchi , Kenichi Mitsugi
发明人： Fusao Sekiguchi , Kenichi Mitsugi
摘要： A variable tuning antenna includes a tuning circuit (1) and a radiation element (2), connected to each other in series. The tuning circuit (1) includes a first inductance element (11) and a parallel circuit (12) to each other in series, and the parallel circuit (12) includes a second inductance element (121) and a variable capacitance element (122) to each other in parallel. And the tuning circuit is set so that the combined reactance of the radiation element and the first inductance element and the combined reactance of the parallel circuit can be canceled by each other, and the parallel circuit does not resonate in a desired receiving frequency band, and moreover, the tuning circuit is formed so as to be tunable in the desired frequency band by varying the capacitance of the variable capacitance. As a result, the variable tuning antenna can be obtained which is applicable to, for example, a portable telephone and is tunable in a whole range of a wide range of a low frequency band such as that of a digital TV. And a portable wireless device using the antenna is also obtained.
摘要翻译： 可变调谐天线包括彼此串联连接的调谐电路（1）和辐射元件（2）。 调谐电路（1）包括彼此串联的第一电感元件（11）和并联电路（12），并联电路（12）包括第二电感元件（121）和可变电容元件（122） 相互并行。 并且调谐电路被设置为使得辐射元件和第一电感元件的组合电抗和并联电路的组合电抗可以彼此消除，并联电路在期望的接收频带中不谐振， 此外，调谐电路形成为通过改变可变电容的电容而在期望频带中可调谐。 结果，可以获得适用于例如便携式电话的可变调谐天线，并且可以在诸如数字电视的低频带的宽范围的整个范围内调节。 并且还获得了使用该天线的便携式无线设备。
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公开(公告)号：US20060197711A1
公开(公告)日：2006-09-07
申请号：US10553750
申请日：2004-04-16
申请人： Fusao Sekiguchi , Kenichi Mitsugi
发明人： Fusao Sekiguchi , Kenichi Mitsugi
摘要： A variable tuning antenna includes a tuning circuit (1) and a radiation element (2), connected to each other in series. The tuning circuit (1) includes a first inductance element (11) and a parallel circuit (12) to each other in series, and the parallel circuit (12) includes a second inductance element (121) and a variable capacitance element (122) to each other in parallel. And the tuning circuit is set so that the combined reactance of the radiation element and the first inductance element and the combined reactance of the parallel circuit can be canceled by each other, and the parallel circuit does not resonate in a desired receiving frequency band, and moreover, the tuning circuit is formed so as to be tunable in the desired frequency band by varying the capacitance of the variable capacitance. As a result, the variable tuning antenna can be obtained which is applicable to, for example, a portable telephone and is tunable in a whole range of a wide range of a low frequency band such as that of a digital TV. And a portable wireless device using the antenna is also obtained.
摘要翻译： 可变调谐天线包括彼此串联连接的调谐电路（1）和辐射元件（2）。 调谐电路（1）包括彼此串联的第一电感元件（11）和并联电路（12），并联电路（12）包括第二电感元件（121）和可变电容元件（122） 相互并行。 并且调谐电路被设置为使得辐射元件和第一电感元件的组合电抗和并联电路的组合电抗可以彼此消除，并联电路在期望的接收频带中不谐振， 此外，调谐电路形成为通过改变可变电容的电容而在期望频带中可调谐。 结果，可以获得适用于例如便携式电话的可变调谐天线，并且可以在诸如数字电视的低频带的宽范围的整个范围内调节。 并且还获得了使用该天线的便携式无线设备。
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