Multiband antenna with a distributed-constant dielectric resonant
circuit as an LC parallel resonant circuit, and multiband portable
radio apparatus using the multiband antenna
    1.
    发明授权
    Multiband antenna with a distributed-constant dielectric resonant circuit as an LC parallel resonant circuit, and multiband portable radio apparatus using the multiband antenna 失效
    具有作为LC并联谐振电路的分布常数介质谐振电路的多频带天线以及使用多频天线的多频带便携式无线电设备

    公开(公告)号:US6011516A

    公开(公告)日:2000-01-04

    申请号:US739183

    申请日:1996-10-30

    CPC分类号: H01Q1/244 H01Q5/321

    摘要: A multiband antenna comprises an antenna device which is resonant at two or more different frequencies. The antenna device comprises a first antenna rod (7), a second antenna rod (8), and a distributed-constant dielectric resonator which is a coaxial dielectric resonator (1A) comprising a dielectric block (1A1). The first antenna rod (7) is electrically connected to an inner conductor (4) covering the inner surface of the dielectric block (1A1). The second antenna rod (8) is electrically connected to an outer conductor (5) covering an outer periphery of the dielectric block (1A1). In another structure, the dielectric resonator is a triplate dielectric resonator (1B) comprising two dielectric plates (1B1). The first antenna rod (7) is electrically connected to a center conductor (6) interposed between the dielectric plates (1B1). The second antenna rod (8) is electrically connected to outer conductors (5) covering the dielectric plates (1B1) at the side opposite to the center conductor (6).

    摘要翻译: 多频带天线包括以两个或更多个不同频率谐振的天线装置。 天线装置包括第一天线杆(7),第二天线杆(8)和分布常数介质谐振器,它是包括介质块(1A1)的同轴介质谐振器(1A)。 第一天线杆(7)电连接到覆盖介质块(1A1)的内表面的内导体(4)。 第二天线杆(8)电连接到覆盖介质块(1A1)的外周的外导体(5)。 在另一结构中,介质谐振器是包括两个电介质板(1B1)的三板介质谐振器(1B)。 第一天线杆(7)电连接到置于电介质板(1B1)之间的中心导体(6)。 第二天线杆(8)与在中心导体(6)相对的一侧覆盖电介质板(1B1)的外导体(5)电连接。

    Ladder-type electric filter circuit apparatus
    2.
    发明授权
    Ladder-type electric filter circuit apparatus 失效
    梯型电滤波器电路装置

    公开(公告)号:US4864259A

    公开(公告)日:1989-09-05

    申请号:US274869

    申请日:1988-11-23

    摘要: A ladder-type electric filter circuit apparatus having a plurality of thinner electric filter units wherein each electric filter unit includes a casing of metal into which piezoelectric resonator elements and terminal plates are inserted, and the metal casing is securely mounted on a printed circuit board by soldering. The piezoelectric resonator elements and terminal plates are insulated from the metal casing by an insulating plate and an elastic insulatiang plate which is also served as a vibration or shock absorber for protecting the contained filter from any external vibration or shock propagated through the printed circuit board.

    摘要翻译: 一种梯形电滤波器电路装置,具有多个较薄的滤波器单元,其中每个滤波器单元包括插入有压电谐振元件和端子板的金属壳体,并且金属外壳通过以下方式牢固地安装在印刷电路板上: 焊接。 压电谐振元件和端子板通过绝缘板和弹性绝缘板与金属外壳绝缘,弹性绝缘板也用作振动或减震器,用于保护所包含的过滤器免受通过印刷电路板传播的任何外部振动或冲击。

    Battery charger capable of displaying necessary charging time
    3.
    发明授权
    Battery charger capable of displaying necessary charging time 失效
    电池充电器可显示必要的充电时间

    公开(公告)号:US5726555A

    公开(公告)日:1998-03-10

    申请号:US608126

    申请日:1996-02-28

    申请人: Kenji Takamoro

    发明人: Kenji Takamoro

    IPC分类号: H02J7/00 H01M10/46 H01M10/48

    CPC分类号: H02J7/0047

    摘要: In a battery charger for use in charging a secondary battery, a display unit displays a necessary charging time which is left until completion of charging operation. The battery charger adopts a constant-voltage and constant current control method. A memory memorizes charging voltage and charging current characteristics of the secondary battery. A voltage detecting circuit detects a charging voltage of the secondary battery and produces a detected voltage signal. A current detecting circuit detects a charging current of the secondary battery and produces a detected current signal. A control circuit decides the necessary charging time on the basis of the charging voltage and charging current characteristics, the detected voltage signal, and the detected current signal. The necessary charging time is displayed on the display unit in the form of numerals and the like.

    摘要翻译: 在用于对二次电池充电的电池充电器中,显示单元显示所需的充电时间,直到完成充电操作。 电池充电器采用恒压恒流控制方式。 存储器存储二次电池的充电电压和充电电流特性。 电压检测电路检测二次电池的充电电压并产生检测的电压信号。 电流检测电路检测二次电池的充电电流并产生检测到的电流信号。 控制电路基于充电电压和充电电流特性,检测到的电压信号和检测到的电流信号来决定必要的充电时间。 必要的充电时间以数字等的形式显示在显示单元上。

    Battery pack with a lithium ion secondary battery
    4.
    发明授权
    Battery pack with a lithium ion secondary battery 失效
    带锂离子二次电池的电池组

    公开(公告)号:US5708351A

    公开(公告)日:1998-01-13

    申请号:US699953

    申请日:1996-08-20

    申请人: Kenji Takamoro

    发明人: Kenji Takamoro

    CPC分类号: H02J7/0065 H02J7/0029

    摘要: A battery pack of the present invention and uses a lithium ion secondary battery and is capable of adjusting the output voltage when temperature around the battery pack is low and causes the voltage of the secondary battery to drop. Therefore, the battery pack outputs a constant voltage on its output terminal without regard to the ambient atmospheric temperature.

    摘要翻译: 本发明的电池组,使用锂离子二次电池,能够在电池组周围的温度低时调节输出电压,并使二次电池的电压下降。 因此,电池组在其输出端子上输出恒定电压,而不考虑环境大气温度。

    Chip-type piezoelectric filter and filter circuit using such
piezoelectric filter
    5.
    发明授权
    Chip-type piezoelectric filter and filter circuit using such piezoelectric filter 失效
    片式压电滤波器和使用这种压电滤波器的滤波电路

    公开(公告)号:US5933061A

    公开(公告)日:1999-08-03

    申请号:US129772

    申请日:1998-08-06

    CPC分类号: H03H9/605 H03H9/58

    摘要: A multi-functional chip-type piezoelectric filter of a simple configuration comprises a multilayer structure which includes a plurality of piezoelectric substrates provided with oscillating sections having respective frequency response characteristics that are different from each other, a plurality of conductive terminals formed on the outer surface of the multilayer structure and connected to the respective oscillating sections of the piezoelectric substrates so that the oscillating sections may be selectively used.

    摘要翻译: 简单结构的多功能芯片型压电滤波器包括多层结构,其包括多个压电基板,该多个压电基板设置有具有彼此不同的频率响应特性的振荡部分,形成在外表面上的多个导电端子 并且连接到压电基板的各个振荡部分,使得可以选择性地使用振荡部分。

    Antenna for portable radio communication apparatus
    6.
    发明授权
    Antenna for portable radio communication apparatus 失效
    用于便携式无线电通信装置的天线

    公开(公告)号:US5455595A

    公开(公告)日:1995-10-03

    申请号:US186570

    申请日:1994-01-26

    IPC分类号: H01Q1/10 H01Q1/24 H01Q9/14

    CPC分类号: H01Q1/10 H01Q1/243

    摘要: An antenna mounted on and retractable into a casing of a portable radio communication apparatus. When the antenna is pulled out of the casing, it plays the role of a .lambda./2 whip antenna. Even when the antenna is retracted into the casing, it has substantially the same gain as when pulled out from the casing.

    摘要翻译: 安装在便携式无线电通信装置的壳体中并可收回的天线。 当天线被拉出外壳时,它起到λ/ 2鞭状天线的作用。 即使当天线缩回到壳体中时,其具有与从壳体拉出时几乎相同的增益。

    Dual-band nonreversible circuit device comprising two nonreversible
circuit elements contained in a single housing to be operable in
different frequency bands
    7.
    发明授权
    Dual-band nonreversible circuit device comprising two nonreversible circuit elements contained in a single housing to be operable in different frequency bands 失效
    双频带不可逆电路装置包括两个不可逆电路元件,其包含在单个壳体中以在不同频带中操作

    公开(公告)号:US5898346A

    公开(公告)日:1999-04-27

    申请号:US756035

    申请日:1996-11-26

    CPC分类号: H01P1/387

    摘要: A dual-band nonreversible circuit device comprises a first circulator element (91) and a second circulator element (92) accommodated in a single housing (50, 50', 60) and operable around a first center frequency (f.sub.A) and a second center frequency (f.sub.B), respectively. The first circulator element (91) is formed by a combination of a first permanent magnet (31), a first ferrite plate (21) with a first center conductor (11), and a ground conductor plate (40) successively stacked on a lower magnetic yoke (50). Likewise, the second circulator element (92) is formed by a combination of the ground conductor plate (40), a second ferrite plate (22) with a second center conductor (12), and a second permanent magnet (32) successively stacked and covered by an upper magnetic yoke (60). Alternatively, a first circulator element (91') is formed by a combination of a first ground conductor plate (41), the first ferrite plate (21) with the first center conductor (11), and a permanent magnet (30) while the second circulator element (92') is formed by a combination of a second ground conductor plate (42), the second ferrite plate (22) with the second center conductor (12), and the permanent magnet (30).

    摘要翻译: 双频带不可逆电路装置包括容纳在单个壳体(50,50',60)中的第一循环器元件(91)和第二循环器元件(92),并且围绕第一中心频率(fA)和第二中心 频率(fB)。 第一循环器元件(91)由第一永久磁铁(31),第一铁氧体板(21)与第一中心导体(11)的组合和接地导体板(40)组合而成, 磁轭(50)。 类似地,第二循环器元件(92)由接地导体板(40),具有第二中心导体(12)的第二铁氧体板(22)和依次层叠的第二永磁体(32)的组合形成, 被上磁轭(60)覆盖。 或者,第一循环器元件(91')由第一接地导体板(41),第一铁氧体板(21)与第一中心导体(11)和永磁体(30)的组合形成,同时 第二循环器元件(92')由第二接地导体板(42),第二铁氧体板(22)与第二中心导体(12)和永磁体(30)的组合形成。

    Antenna for a radio communication apparatus
    8.
    发明授权
    Antenna for a radio communication apparatus 失效
    天线用于无线电通信装置

    公开(公告)号:US5467096A

    公开(公告)日:1995-11-14

    申请号:US201340

    申请日:1994-02-24

    IPC分类号: H01Q1/10 H01Q1/24 H01Q1/36

    CPC分类号: H01Q1/10 H01Q1/243

    摘要: A miniature and high performance antenna applicable to a radio communication apparatus and made up of a straight antenna rod and a loading coil. The tip of the straight antenna rod is received in the coil such that capacity coupling is set up between them. An antenna configuration is provided for setting up capacity coupling between the antenna rod and a feed portion.

    摘要翻译: 适用于无线电通信设备并由直的天线杆和负载线圈组成的微型和高性能天线。 直线天线杆的尖端被接收在线圈中,使得它们之间建立电容耦合。 提供天线配置用于设置天线杆和馈电部分之间的容量耦合。