発振器及び通信機器
    181.
    发明申请
    発振器及び通信機器 审中-公开
    振荡器和通讯设备

    公开(公告)号:WO2003021765A1

    公开(公告)日:2003-03-13

    申请号:PCT/JP2002/007669

    申请日:2002-07-29

    CPC classification number: H03B5/32 H03B2201/0208 H03L1/025

    Abstract: An oscillator (10) comprises temperature compensation circuits (30) and (40), a frequency adjustment circuit (50), and an initial deviation correction circuit (60). A temperature compensation voltage (V1), a temperature compensation voltage (V2), a frequency adjustment voltage (V3) and an initial deviation correction voltage (V4) output from these circuits are selectively added by controlling switches (SW1−SW4) according to control data DC stored in a memory (90), and the sum voltage is supplied to a voltage control oscillation circuit (20) as a control voltage (VA).

    Abstract translation: 振荡器(10)包括温度补偿电路(30)和(40),频率调节电路(50)和初始偏差校正电路(60)。 通过根据控制的控制开关(SW1-SW4)选择性地添加从这些电路输出的温度补偿电压(V1),温度补偿电压(V2),频率调整电压(V3)和初始偏差校正电压(V4) 数据DC存储在存储器(90)中,并且和电压被提供给作为控制电压(VA)的电压控制振荡电路(20)。

    VOLTAGE CONTROLLED OSCILLATORS INCLUDING TUNABLE DIELECTRIC DEVICES
    182.
    发明申请
    VOLTAGE CONTROLLED OSCILLATORS INCLUDING TUNABLE DIELECTRIC DEVICES 审中-公开
    电压控制振荡器,包括电容式电介质器件

    公开(公告)号:WO02009269A1

    公开(公告)日:2002-01-31

    申请号:PCT/US2001/022673

    申请日:2001-07-19

    Abstract: A voltage controlled oscillator includes an active element having a first connectin point for connection to a voltage source and an output connection point. A tunable resonator including a first voltage tunable dielectric device is connected to an input of the active element. A first circuit branch is also connected to the active element. The first circuit branch can include a second voltage tunable dielectric device. A tuning voltage controller supplies a control voltage to the first and second voltage tunable dielectric devices to control the frequency of an oscillating voltage at the output connection point. In a reflect type voltage controlled oscillator, the first circuit branch is a bypass circuit. In a transmission type voltage controlled oscillator, the first circuit branch includes a phase shifter and is connected between the active element output connection point and the tunable resonator.

    Abstract translation: 压控振荡器包括具有用于连接到电压源的第一连接点和输出连接点的有源元件。 包括第一电压可调介质器件的可调谐谐振器连接到有源元件的输入端。 第一电路支路也连接到有源元件。 第一电路支路可以包括第二电压可调介质装置。 调谐电压控制器向第一和第二电压可调介质装置提供控制电压以控制输出连接点处的振荡电压的频率。 在反射型压控振荡器中,第一电路分支是旁路电路。 在透射型压控振荡器中,第一电路支路包括移相器,并连接在有源元件输出连接点和可调谐谐振器之间。

    DIRECT DIGITALLY TUNABLE MICROWAVE OSCILLATORS AND FILTERS
    183.
    发明申请
    DIRECT DIGITALLY TUNABLE MICROWAVE OSCILLATORS AND FILTERS 审中-公开
    直接数字微波微波振荡器和滤波器

    公开(公告)号:WO01013527A1

    公开(公告)日:2001-02-22

    申请号:PCT/US2000/022763

    申请日:2000-08-17

    CPC classification number: H04B1/18 H03B2201/0208 H03B2201/025

    Abstract: A tunable element in the microwave frequency range includes one or more tunable elements (107). The low noise digital signals filtered by a digital isolation technique are converted to the analog control voltage by way of D/A converter (105). A low cost microwave oscillator (106) and filter are used for directly tune the tunable elements (107).

    Abstract translation: 微波频率范围内的可调谐元件包括一个或多个可调元件(107)。 通过数字隔离技术滤波的低噪声数字信号通过D / A转换器(105)转换为模拟控制电压。 使用低成本微波振荡器(106)和滤波器来直接调谐可调元件(107)。

    OSCILLATOR WITH POWER CONSERVATION MODE
    184.
    发明申请
    OSCILLATOR WITH POWER CONSERVATION MODE 审中-公开
    具有省电模式的振荡器

    公开(公告)号:WO00004633A1

    公开(公告)日:2000-01-27

    申请号:PCT/US1999/016185

    申请日:1999-07-15

    CPC classification number: H03B5/1231 H03B5/1203 H03B5/1243 H03B2201/0208

    Abstract: An oscillator having a tank circuit (L2, CR1, C2, C3, C4), a transistor amplifier circuit (Q1) and a switching circuit (Q2). The switching circuit (Q2) switches the oscillator between a normal power consumption mode and a lower power consumption mode by switching between two selected voltages at the base of the amplifier transistor (Q1). When in the lower power consumption mode, the oscillator has sufficient current to sustain oscillation, but insufficient current to meet the phase noise requirements for good fidelity and high data rates. When in the normal power consumption mode, the oscillator has sufficient current to meet the phase noise requirements.

    Abstract translation: 具有振荡电路(L2,CR1,C2,C3,C4),晶体管放大器电路(Q1)和开关电路(Q2)的振荡器。 开关电路(Q2)通过在放大晶体管(Q1)的基极处的两个选择的电压之间切换,在正常功耗模式和较低功耗模式之间切换振荡器。 当处于较低功耗模式时,振荡器具有足够的电流来维持振荡,但电流不足以满足相位噪声要求,以保证良好的保真度和高数据速率。 当处于正常功耗模式时,振荡器具有足够的电流以满足相位噪声要求。

    SWITCHED MODE OSCILLATOR
    185.
    发明申请
    SWITCHED MODE OSCILLATOR 审中-公开
    开关振荡器

    公开(公告)号:WO99057803A1

    公开(公告)日:1999-11-11

    申请号:PCT/US1999/009714

    申请日:1999-05-04

    Abstract: An electronic oscillator of the Colpitts type with an amplifying element (A) and a tank circuit (T). The tank circuit (T) includes a parallel tuned resonant circuit (PT), a series tuned resonant circuit (ST) and a switching circuit (SW) that selectively connects one of the resonant circuits (PT, ST) to the tank circuit (T). The oscillator operates at a first frequency in the parallel tuned mode and a second frequency that is substantially twice the first frequency in the series tuned mode.

    Abstract translation: 具有放大元件(A)和电路(T)的Colpitts型电子振荡器。 谐振电路(T)包括并联调谐谐振电路(PT),串联调谐谐振电路(ST)和开关电路(SW),其选择性地将谐振电路(PT,ST)之一连接到储能电路(T )。 振荡器以并行调谐模式的第一频率工作,而第二频率基本上是串联调谐模式中第一频率的两倍。

    APPARATUS FOR TRACKING RESONANT FREQUENCY
    186.
    发明申请
    APPARATUS FOR TRACKING RESONANT FREQUENCY 审中-公开
    跟踪谐振频率的装置

    公开(公告)号:WO1998021818A1

    公开(公告)日:1998-05-22

    申请号:PCT/GB1997003028

    申请日:1997-11-13

    CPC classification number: H03B5/00 H03B2201/0208

    Abstract: An apparatus for tracking the varying resonant frequency of an electrically resonant structure, characterised by: a variable frequency oscillator providing an excitation signal of a variable frequency encompassing the possible resonant frequency range of said resonant structure, a bidirectional RF transmission line connecting said variable frequency oscillator and said resonant structure, said transmission line incorporating a directional coupler which generates a directional coupler signal proportional to the reflected signal from said resonant structure, said directional coupler signal being conditioned by a processor to provide a feedback signal to the input of the variable frequency oscillator, such that the mean frequency of said excitation signal is caused to continuously track the varying resonant frequency of said resonant structure. Typically the tracking of said varying resonant frequency involves at least two functions, a first search function for initially searching the possible resonant frequency range of said resonant structure and, once resonance of said resonant structure is established, a second following function for following said variable resonant frequency as it varies as a function of time.

    Abstract translation: 一种用于跟踪电谐振结构的变化谐振频率的装置,其特征在于:提供包含所述谐振结构的可能谐振频率范围的可变频率的激励信号的可变频率振荡器,连接所述可变频率振荡器 并且所述谐振结构,所述传输线包括定向耦合器,其产生与来自所述谐振结构的反射信号成比例的定向耦合器信号,所述定向耦合器信号由处理器调节以向可变频率振荡器的输入端提供反馈信号 使得使所述激励信号的平均频率连续地跟踪所述共振结构的变化的谐振频率。 通常,所述变化谐振频率的跟踪涉及至少两个功能,第一搜索功能,用于最初搜索所述谐振结构的可能的谐振频率范围,并且一旦建立了所述谐振结构的谐振,则具有用于跟随所述可变谐振的第二跟随功能 频率随时间的变化而变化。

    METHOD AND APPARATUS FOR REDUCTION OF TRANSMITTER-CHAIN NOISE IN PORTABLE DUPLEX TRANSCEIVERS
    187.
    发明申请
    METHOD AND APPARATUS FOR REDUCTION OF TRANSMITTER-CHAIN NOISE IN PORTABLE DUPLEX TRANSCEIVERS 审中-公开
    便携式二重收发器中减少发射机链噪声的方法和装置

    公开(公告)号:WO1997004529A1

    公开(公告)日:1997-02-06

    申请号:PCT/US1996011666

    申请日:1996-07-15

    Applicant: ERICSSON INC.

    CPC classification number: H04B1/0475 H03B2201/0208

    Abstract: Reduction of transmitter exciter chain generated noise from the receive band of a portable/hand-held duplex transceiver is achieved using a high output power, low-noise voltage-controlled oscillator (VCO) in the transmitter exciter chain. Using this high-power, low-noise oscillator as the RF source in the transmitter exciter chain precludes the need for the conventional buffer/driver amplifier stage and an associated inter-stage noise filter. Elimination of buffer/driver stage components and bulky inter-stage noise filter components allows complete integration of transmitter exciter chain components resulting in reduced size and cost.

    Abstract translation: 使用发射机激励器链中的高输出功率低噪声压控振荡器(VCO)来实现从便携式/手持式双工收发器的接收频带减少发射机激励器链产生的噪声。 使用这种高功率,低噪声振荡器作为发射机励磁链中的RF源,排除了传统的缓冲器/驱动放大器级和相关的级间噪声滤波器的需要。 消除缓冲器/驱动器级元件和庞大的级间噪声滤波器元件允许发射机激励器链组件的完全集成,从而减小尺寸和成本。

    ELECTRONIC VIEWING AID
    188.
    发明申请
    ELECTRONIC VIEWING AID 审中-公开
    电子浏览

    公开(公告)号:WO1996000401A1

    公开(公告)日:1996-01-04

    申请号:PCT/GB1995000782

    申请日:1995-04-05

    Abstract: An electronic viewing aid according to the present invention comprises a small-scale, portable personal radar system adapted to be worn by a person, which radar system includes a miniaturised radar front end assembly (22) operating with millimetre wavelength electromagnetic radiation, an electrical power source, signal processing means and a sensory output means. In a preferred embodiment of the invention, the radar front end assembly (22) is constructed in the form of a pair of spectacles (76), in which both a transmit antenna (78) and a receive antenna (90) of the radar system are carried on respective lens elements (75) of the spectacles (76) and analogue portions of both a transmitter circuit and a receiver circuit are carried on respective side support frames of the spectacles (76); and the sensory output means is an audio output means including stereo headphones (98).

    Abstract translation: 根据本发明的电子观察辅助装置包括适于由人佩戴的小型便携式个人雷达系统,该雷达系统包括用毫米波长电磁辐射操作的小型化雷达前端组件(22),电力 源,信号处理装置和感觉输出装置。 在本发明的优选实施例中,雷达前端组件(22)以一对眼镜(76)的形式构成,其中雷达系统的发射天线(78)和接收天线(90) 携带在眼镜(76)的各个透镜元件(75)上,发射器电路和接收器电路的模拟部分被承载在眼镜(76)的相应侧支撑框架上; 并且感觉输出装置是包括立体声耳机(98)的音频输出装置。

    SELF-SHIELDING MICROSTRIP ASSEMBLY
    189.
    发明申请
    SELF-SHIELDING MICROSTRIP ASSEMBLY 审中-公开
    自屏蔽显微镜组件

    公开(公告)号:WO1994026023A1

    公开(公告)日:1994-11-10

    申请号:PCT/US1994004700

    申请日:1994-04-28

    Applicant: MOTOROLA INC.

    Abstract: A shielded microstrip assembly (100) includes a substrate (102) having a first ground plane surface (106) and a second surface (206) which includes a transmission line (216). A plurality of solder balls (104) provide electrical interconnection for the ground plane and for the terminals (210) and (212) of transmission line (216). The microstrip assembly (100) is then inverted and attached using solder balls (104) to a carrier (302). The inverted microstrip assembly (100) of the present invention provides for improved shielding, while maintaining the high Q and other advantages associated with a microstrip.

    Abstract translation: 屏蔽微带组件(100)包括具有第一接地平面表面(106)和包括传输线(216)的第二表面(206)的衬底(102)。 多个焊球(104)为接地平面和传输线(216)的端子(210)和(212)提供电互连。 然后将微带组件(100)反转并使用焊球(104)附接到载体(302)。 本发明的倒置微带组件(100)提供了改进的屏蔽,同时保持与微带相关的高Q和其它优点。

    AMPLITUDE AND PHASE BALANCED VOLTAGE-CONTROLLED OSCILLATOR
    190.
    发明申请
    AMPLITUDE AND PHASE BALANCED VOLTAGE-CONTROLLED OSCILLATOR 审中-公开
    振幅和相平衡电压控制振荡器

    公开(公告)号:WO1992010026A1

    公开(公告)日:1992-06-11

    申请号:PCT/US1991008578

    申请日:1991-11-15

    Applicant: MOTOROLA, INC.

    CPC classification number: H03B5/1841 H03B19/00 H03B2201/0208 H03D9/06

    Abstract: An oscillator (40) comprises a resonator (44) for providing an oscillation frequency for the oscillator, an active network (42), coupled to the resonator, for driving the resonator, and a split-ring resonator (46) coupled to the main resonator and used to provide amplitude and phase balanced outputs. The split-ring resonator has at least a first edge, which is coupled to the resonator, and a second edge. The second edge has a gap (50) therein, and a first terminal located (48) at one side of the gap, and a second terminal (48') symmetrically located at the other side of the gap.

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