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    Two-frequency switching type crystal oscillator
    285.
    发明专利
    Two-frequency switching type crystal oscillator 有权
    双频切换式水晶振荡器

    公开(公告)号：JP2007181091A

    公开(公告)日：2007-07-12

    申请号：JP2005379545

    申请日：2005-12-28

    Applicant: Nippon Dempa Kogyo Co Ltd ,  日本電波工業株式会社

    Inventor： WATANABE MAKOTO

    IPC: H03B5/32

    CPC classification number: H03B5/36 ,  H03B2200/0048 ,  H03B2201/025

    Abstract: PROBLEM TO BE SOLVED: To provide a two-frequency switching type oscillator having miniaturized planar external area by simplifying a wiring pattern by reducing the mounting area of first and second IC chips.
    SOLUTION: The two-frequency switching type crystal oscillator is configured so that first and second IC chips and first and second crystal resonators are connected to a wiring pattern of a mounting substrate to form first and second oscillation circuits, and the first and second oscillation circuits selectively operate with a selecting mechanism. This oscillator has a structure in which the first and second IC chips are formed in two-stage structure in which opposite surfaces of circuit function surfaces are joined, each of IC terminals of the first IC chip are directly fixed on the wiring pattern in an electrical/mechanical way, each of IC terminals of a circuit function surface of the second IC chip is electrically connected to the wiring pattern by wire bonding. The wiring pattern connected to the power source, output, and a ground terminal of the first and second IC chips out of the wiring patterns is common between the first and second oscillation circuits.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 解决方案：通过减小第一和第二IC芯片的安装面积，简化布线图案，提供具有小型化的平面外部面积的双频开关型振荡器。 解决方案：双频开关型晶体振荡器被配置为使得第一和第二IC芯片和第一和第二晶体谐振器连接到安装基板的布线图案以形成第一和第二振荡电路，并且第一和 第二振荡电路选择性地与选择机构一起操作。 该振荡器具有这样的结构，其中第一和第二IC芯片形成为两相结构，其中电路功能表面的相对表面被接合，第一IC芯片的每个IC端子以电气方式直接固定在布线图案上 /机械方式，第二IC芯片的电路功能表面的每个IC端子通过引线接合电连接到布线图案。 在第一振荡电路和第二振荡电路之间，连接到布线图案中的第一和第二IC芯片的电源，输出和接地端子的布线图案是共同的。 版权所有（C）2007，JPO＆INPIT

    Oscillator, pll circuit, receiver, and transmitter
    286.
    发明专利
    Oscillator, pll circuit, receiver, and transmitter 审中-公开
    振荡器，PLL电路，接收器和发送器

    公开(公告)号：JP2007081593A

    公开(公告)日：2007-03-29

    申请号：JP2005264631

    申请日：2005-09-13

    Applicant: Neuro Solution Corp ,  有限会社ニューロソリューション

    Inventor： MIYAGI HIROSHI

    IPC: H03B5/12 ,  H03L7/099 ,  H03L7/10 ,  H04B1/04 ,  H04B1/26

    CPC classification number: H03L7/18 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2201/025 ,  H03J2200/10 ,  H03L7/099 ,  H04B1/28

    Abstract: PROBLEM TO BE SOLVED: To provide an oscillator that can reduce a circuit size and is suitable for integration, and to provide a PLL circuit, a receiver, and a transmitter.
    SOLUTION: Capacitance is varied in variable-capacitance circuits 230, 230A, thus changing an oscillation frequency in a voltage-controlled oscillator 21. The variable-capacitance circuit 230 comprises a plurality of variable-capacitance elements 60-64 capable of changing the capacitance continuously by a control signal; a plurality of capacitors 50-54 that correspond to respective variable-capacitance elements and have fixed capacitance; and a plurality of switches 71-74 and 81-84 for switching the presence or absence of each selective connection of the plurality of variable-capacitance elements 60-64, and the plurality of capacitors 50-54 with a combination circuit as units, with the combination circuit comprising the variable-capacitance element and capacitors corresponding to it as a set.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供可以减小电路尺寸并适合于集成的振荡器，并提供PLL电路，接收器和发射器。 解决方案：电容在可变电容电路230,230A中变化，从而改变压控振荡器21中的振荡频率。可变电容电路230包括能够改变的多个可变电容元件60-64 电容由控制信号连续; 对应于各个可变电容元件并具有固定电容的多个电容器50-54; 以及用于以组合电路为单位切换多个可变电容元件60-64和多个电容器50-54的每个选择性连接的存在或不存在的多个开关71-74和81-84， 组合电路包括可变电容元件和对应于其的电容器作为一组。 版权所有（C）2007，JPO＆INPIT

    Digital control oscillation circuit
    289.
    发明专利
    Digital control oscillation circuit 审中-公开
    数字控制振荡电路

    公开(公告)号：JP2005236984A

    公开(公告)日：2005-09-02

    申请号：JP2005032366

    申请日：2005-02-08

    Applicant: Infineon Technologies Ag ,  インフィネオン テクノロジーズ アクチエンゲゼルシャフト

    Inventor： BELITZER ALEXANDER

    IPC: H03B5/32 ,  G11C7/00 ,  H03B1/00 ,  H03B5/02 ,  H03B5/12 ,  H03J5/24 ,  H03K3/02

    CPC classification number: H03B5/36 ,  H03B5/362 ,  H03B5/368 ,  H03B2201/025 ,  H03J2200/10

    Abstract: PROBLEM TO BE SOLVED: To provide a digital control oscillation circuit which can be easily implemented and easily achieve a request for differential nonlinearity.
    SOLUTION: A digital control oscillation circuit for generating a signal having a variable frequency includes a data input section (31) for a digital control word and a capacitor circuit (34) for changing the variable frequency of the signal. The capacitor circuit (34) includes a control input section (33) for a control signal and its total capacitance changes dependently upon the control signal. A mapping device (32) is connected between the data input section (31) and the control input section (33). The mapping device is configured to determine the control signal from the digital control word.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种易于实现并容易实现差分非线性请求的数字控制振荡电路。 解决方案：用于产生具有可变频率的信号的数字控制振荡电路包括用于数字控制字的数据输入部分（31）和用于改变信号的可变频率的电容器电路（34）。 电容器电路（34）包括用于控制信号的控制输入部（33），其总电容根据控制信号而改变。 映射设备（32）连接在数据输入部分（31）和控制输入部分（33）之间。 映射设备被配置为从数字控制字确定控制信号。 版权所有（C）2005，JPO＆NCIPI

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