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    • 3. 发明申请
    • HEATING DEVICE AND METHOD USING A PSEUDO-UNIFORM ELECTROMAGNETIC FIELD
    • 加热装置和使用PSEUDO-UNIFORM电磁场的方法
    • WO2008151469A1
    • 2008-12-18
    • PCT/CN2007/001883
    • 2007-06-15
    • REN, Changxue
    • REN, Changxue
    • A61N5/02H01J23/36H01P1/213H03C7/00
    • A61N5/02H01Q1/44H01Q21/20H01Q21/22
    • A microwave heating device and a microwave heating method for evenly heating an object, such as a person's body involve use of at least one microwave source (2) that outputs multiple microwaves and an antenna array (3) that radiates substantially plane microwaves to form a pseudo uniform microwave electromagnetic field (15), wherein the microwaves are not frequency-correlated, in order to eliminate non-uniform heating caused by interference. The antenna array (3) includes multiple antenna units (14), and each antenna unit (14) includes at least one microwave radiator (10) and at least one converter (11) that converts the spherical microwave field into a plane microwave field. A computer based control system (1) and redundant temperature monitoring subsystems (5) can be used to adjust the output of each antenna unit (14), in order to enhance the uniform heating effect. The device also includes a pressure monitor and/or a heart rate monitor (6) that resist microwave interference for the safety of the hyperthermia-treated subject.
    • 微波加热装置和用于均匀地加热物体(例如人体)的微波加热装置包括使用至少一个输出多个微波的微波源(2)和辐射基本上平面的微波的天线阵列(3),以形成 伪均匀微波电磁场(15),其中微波不是频率相关的,以消除由干扰引起的不均匀加热。 天线阵列(3)包括多个天线单元(14),并且每个天线单元(14)包括至少一个微波辐射器(10)和将球形微波场转换成平面微波场的至少一个转换器(11)。 可以使用基于计算机的控制系统(1)和冗余温度监控子系统(5)来调整每个天线单元(14)的输出,以便增强均匀的加热效果。 该装置还包括压力监测器和/或心率监测器(6),其抵抗微波干扰以治疗热疗受治疗者的安全性。
    • 7. 发明申请
    • METHOD AND SYSTEM FOR DOWN-CONVERTING AN ELECTROMAGNETIC SIGNAL
    • 用于下变频电磁信号的方法和系统
    • WO0024117A9
    • 2002-11-07
    • PCT/US9924299
    • 1999-10-20
    • PARKER VISION INC
    • SORRELLS DAVID FBULTMAN MICHAEL JCOOK ROBERT WLOOKE RICHARD CMOSES CHARLEY D JRRAWLINS GREGORY SRAWLINS MICHAEL W
    • H03D3/00H03C1/62H03C7/00H03D7/00H03D7/12H03D9/00H04B1/26H04B1/30H04B7/12H04L27/00
    • H04B7/12H03C1/62H03D7/00
    • Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
    • 这里描述了通过使EM信号进行混叠来降低电磁(EM)信号的转换的方法,系统和装置。 简要地说,这样的方法,系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠,以降低EM信号的转换。 如本文所使用的,术语混叠是指通过以混叠速率对EM信号进行欠采样以及以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中,EM信号被下变频到中频(IF)信号。 在另一实施例中,EM信号被下变频为解调的基带信息信号。 在另一个实施例中,EM信号是频率调制(FM)信号,其被下变频成非FM信号,例如相位调制(PM)信号或幅度调制(AM)信号。
    • 8. 发明申请
    • A TRANSMITTER WITH MODULATION
    • 具有调制功能的变送器
    • WO2011053243A1
    • 2011-05-05
    • PCT/SG2009/000397
    • 2009-10-30
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHDIAO, ShengxiZHENG, Yuanjin
    • DIAO, ShengxiZHENG, Yuanjin
    • H04L27/18H03C7/00H04B1/02
    • H04L27/2003H03C3/16H03C3/225H04B1/71635H04B1/7174
    • A transmitter with modulation comprising a phase changing stage having a first switch and a second switch coupled t the first switch, a first transistor and a second transistor individually coupled to the each switch. The transmitter is configured to receive a phase changing signal having a first state and a second state. The first switch is configured t operate in an opposing manner to the second switch such that only the first transistor is configured to be turned on i the first state and only the second transistor is configured to be turned on in the second state upon receipt of the phase changing signal by the switches so as to achieve a change in an output phase of the transmitter when the phase changing signal switches from the first state to the second state.
    • 一种具有调制的发射机,包括相位改变级,该相位级具有第一开关和耦合到第一开关的第二开关,第一晶体管和第二晶体管单独耦合到每个开关。 发射机被配置为接收具有第一状态和第二状态的相位改变信号。 第一开关被配置为以与第二开关相反的方式操作,使得仅第一晶体管被配置为在第一状态下导通,并且仅在接收到第二状态时第二晶体管被配置为在第二状态下导通 通过开关进行相位改变信号,以便当相变信号从第一状态切换到第二状态时,实现发射机的输出相位的变化。