Portable radio unit and antenna gain switching method thereof
    91.
    发明公开
    Portable radio unit and antenna gain switching method thereof 失效
    一种用于在便携式无线电切换天线效率的方法

    公开(公告)号:EP0689299A3

    公开(公告)日:1997-05-28

    申请号:EP95304371.8

    申请日:1995-06-22

    申请人: NEC CORPORATION

    IPC分类号: H04B1/38

    CPC分类号: H04B1/3833 H01Q1/244

    摘要: In a radio unit having an antenna, a receiver and a transmitter, the present invention comprises detection means for detecting at least one signal of a receiving call and a sending call; and gain switching means for switching gain of the antenna, based on a detection result of the detection means.

    ANTENNA FOR TWO FREQUENCY BANDS
    92.
    发明公开
    ANTENNA FOR TWO FREQUENCY BANDS 失效
    天线两个频段

    公开(公告)号:EP0755091A4

    公开(公告)日:1997-03-26

    申请号:EP96901949

    申请日:1996-02-07

    申请人: SONY CORP

    摘要: This invention provides an antenna unit operating for two frequency bands either in contained and pulled out. It provides a fixed antenna unit 20 and a slide antenna unit 30 freely in containing. A helical antenna 21 is provided in the fixed antenna unit 20. A first monopole antenna 31 having the same axis as the helical antenna 21, a second monopole antenna 32, and an antenna cover 33 for holding the monopole antenna 32 on the extended axis of the monopole antenna 31 are provided in the slide antenna unit 30. The monopole antenna 31 is held at the position where is not electromagnetically connected to the helical antenna 21 when the slide antenna unit 30 is pulled out, and the monopole antenna 32 is held at the position where is electromagnetically connected to the helical antenna 21. Further, the monopole antenna 31 is held at the position where is electromagnetically connected to the helical antenna 21, and the monopole antenna 32 is held at the position where is not electromagnetically connected to the helical antenna 21.

    BROADBAND AERIAL MEANS
    93.
    发明公开
    BROADBAND AERIAL MEANS 失效
    宽频天线设备

    公开(公告)号:EP0740857A1

    公开(公告)日:1996-11-06

    申请号:EP94931724.0

    申请日:1994-10-26

    申请人: ALLGON AB

    发明人: ENGBLOM, Gunnar

    IPC分类号: H01Q21 H01Q1 H01Q5 H01Q11 H04B1

    摘要: The invention relates to a broadband antenna means which comprises a first and a second helical antenna (203, 207) wherein the antennas (203, 207) have different resonance frequencies. An antenna which has essentially a larger bandwidth than the bandwidth of an individual helical antenna is formed in coaction between the helical antennas (203, 207), by arranging the antennas coaxially and in generally the same axial positions, wherein the helical antennas (203, 207) are separated galvanically, possibly with the exception of at respective supply points. When fitted to portable equipment, the helical antennas (203, 207) can be combined with an axially movable straight wire antenna.

    Portable radio communication device and loaded antenna therefor
    95.
    发明公开
    Portable radio communication device and loaded antenna therefor 失效
    TragbaresFunkgerätund belastete Antennedafür。

    公开(公告)号:EP0644606A1

    公开(公告)日:1995-03-22

    申请号:EP94103050.4

    申请日:1994-03-01

    申请人: FUJITSU LIMITED

    IPC分类号: H01Q1/24 H04B7/005 H03G3/20

    摘要: A portable radio communication device has an antenna (1) which can be extended for use and retracted for storage, and can transmit a signal at the same level of electric energy when the antenna is stored as when the antenna is extended. When the antenna (1) is retracted and stored, the stored condition is detected by a detecting switch (2). In response to a detected signal from the detecting switch, a transmission output controller (5) produces an increased transmission output control signal to increase the level of electric energy of the signal to be transmitted which is higher than a normal level of electric energy of signals transmitted from the antenna. When the increased transmission output control signal is generated, a power amplifier (3) amplifies a signal to be transmitted which is supplied from a transmission signal generator (4), and supplies the amplified signal to the antenna. Therefore, even when the antenna is stored, it can radiate the signal at the same level of electric energy as when the antenna is extended. The antenna comprises an antenna which operates as a loaded antenna when it is extended and as a helical antenna when it is stored.

    摘要翻译: 便携式无线电通信设备具有可以延长使用和收缩以存储的天线(1),并且当天线被天线延伸时存储时可以发送具有相同电能水平的信号。 当天线(1)收回并存储时,由检测开关(2)检测存储条件。 响应于来自检测开关的检测信号,发送输出控制器(5)产生增加的发送输出控制信号,以增加要发送的信号的电能水平高于信号的正常电能水平 从天线发射。 当产生增加的发送输出控制信号时,功率放大器(3)放大从发送信号发生器(4)提供的要发送的信号,并将放大的信号提供给天线。 因此,即使在天线被存储的情况下,也能够以与天线延伸时相同的电能水平照射信号。 该天线包括天线,当天线被延伸时作为加载天线工作,并且当它被存储时作为螺旋天线。

    Portable telephone set with an earphone
    96.
    发明公开
    Portable telephone set with an earphone 失效
    手提电话与耳机设置。

    公开(公告)号:EP0624021A3

    公开(公告)日:1995-01-25

    申请号:EP94105907.3

    申请日:1994-04-15

    申请人: NEC CORPORATION

    IPC分类号: H04M1/02 H01Q1/24

    摘要: In a portable telephone set, an earphone cord (14) is a flat cord. Therefore, it is difficult for the flat cord to be twisted, so that the tangling of the flat cord is avoided. The motion of the flat cord in which the flat cord is pulled out of a main body (12) in operation and contained therein in non-operation is conveyed to an antenna (18), so that the antenna is extended out of the main body in operation, and the antenna is contained in the main body in non-operation. In the same manner, the motion of the antenna is conveyed to the flat cord.

    AN ANTENNA CONSTRUCTION WITH AN EXTENSIBLE ANTENNA ELEMENT
    97.
    发明公开
    AN ANTENNA CONSTRUCTION WITH AN EXTENSIBLE ANTENNA ELEMENT 失效
    天线工程与拉天线元件。

    公开(公告)号:EP0576531A1

    公开(公告)日:1994-01-05

    申请号:EP92907567.0

    申请日:1992-03-18

    申请人: DANCALL RADIO A/S

    发明人: BECH, Erik

    IPC分类号: H01Q1

    CPC分类号: H01Q1/244 H01Q1/10

    摘要: Une structure d'antenne munie d'un élément d'antenne en forme de tige est conçue pour être utilisée dans les téléphones portatifs. L'élément d'antenne en forme de tige est conçu pour pouvoir se déplacer de manière glissante dans un tube entre une première position dans laquelle l'élément d'antenne tout entier fait saillie du tube et contribue au rayonnement, et une deuxième position dans laquelle seulement une partie de l'élément d'antenne fait saillie du tube et contribue au rayonnement. Ledit élément est conçu pour pouvoir se loger dans le tube afin de servir de ligne de transmission coaxiale. Cette ligne est conçue de manière que dans la deuxième position, dans laquelle une partie de l'élément est reçue dans le tube, elle présente une longueur et une manière de terminaison telles que l'impédance de la ligne de transmission est élevée, lorsqu'on la considère depuis la partie en saillie de l'élément d'antenne, et par conséquent n'affecte pas cette partie. La ligne de transmission coaxiale peut être par exemple une ligne de transmission demi-onde ouverte. Cependant, la ligne de transmission peut également être réalisée sous la forme d'une ligne de transmission quart-d'onde court-circuitée, ou d'une ligne de transmission demi-onde raccourcie ouverte.

    Antenna operating mechanism for a portable radio communication apparatus
    99.
    发明公开
    Antenna operating mechanism for a portable radio communication apparatus 失效
    Antennenbetätigungsmechanismusfürein tragbaresFunksprechgerät。

    公开(公告)号:EP0544523A2

    公开(公告)日:1993-06-02

    申请号:EP92310795.7

    申请日:1992-11-25

    申请人: NEC CORPORATION

    IPC分类号: H01Q1/10 H01Q1/24

    CPC分类号: H01Q1/244 H01Q1/103

    摘要: An antenna handling mechanism incorporated in a portable radio communication apparatus (1) and including an antenna (2) which can be pulled out of the casing (7) of the apparatus, as desired. When the antenna (2) is received in the casing (7), the lower end (3) of thereof is locked by a latch mechanism (4) disposed in the casing (7). In this condition, as the tip (5) of the antenna (2) is pressed, the latch mechanism (4) unlocks the lower end (3) of the antenna and, at the same time, pushes the antenna out of the top of the casing (7) by a pushing stroke. When the antenna being inserted into the casing reaches a predetermined position, the latch mechanism locks the lower end of the antenna.

    摘要翻译: 一种天线处理机构,其结合在便携式无线电通信装置(1)中,并且包括可以根据需要从设备的壳体(7)中拉出的天线(2)。 当天线(2)被容纳在壳体(7)中时,其下端(3)由设置在壳体(7)中的闩锁机构(4)锁定。 在这种情况下,当天线(2)的尖端(5)被按压时,闩锁机构(4)解锁天线的下端(3),并且同时将天线推出 壳体(7)通过推动行程。 插入机壳中的天线到达预定位置时,闩锁机构锁定天线的下端。

    Kompaktes Funkgerät, insbesondere Handfunkgerät, mit versenkbarer oder umklappbarer Stabantenne
    100.
    发明公开
    Kompaktes Funkgerät, insbesondere Handfunkgerät, mit versenkbarer oder umklappbarer Stabantenne 失效
    紧凑型,特殊便携式无线电收发器,具有可退回或可折叠天线

    公开(公告)号:EP0511577A3

    公开(公告)日:1993-03-24

    申请号:EP92106818.5

    申请日:1992-04-21

    IPC分类号: H04B1/38

    CPC分类号: H01Q1/244

    摘要: Handfunkgerät mit versenkbarer oder umklappbarer Stabantenne (2; 2') und zusätzlicher integrierter Hilfsantenne (7; 7'), die bei versenkter bzw. umgeklappter Stabantenne eine zumindest notdürftige Funktion des Geräts gewährleistet. Die integrierte Antenne ist an einem konischen Gehäuseansatz (6) ausgebildet, dessen Innenraum mit dem Aufnahmeraum (5) zur Aufnahme der versenkten bzw. umgeklappten Stabantenne in Verbindung steht. Derjenige Teil (4) der Stabantenne, der sich bei eingeschobener bzw. umgeklappter Position der Stabantenne in dem genannten Gehäuseansatz (6) befindet, besteht aus Isolierstoff, so daß er dann die Funktion der integrierten Antenne (6; 6') nicht beeinträchtigt. Bei ausgezogener bzw. herausgeklappter Stabantenne befindet sich das an deren Fußpunkt angeordnete Einspeisungsteil (3) innerhalb des Gehäuseansatzes (6), so daß er die integrierte Antenne (7) derart verstimmt, daß sie keinen störenden Einfluß ausüben kann.