JP2001308738A - Antenna system - Google Patents
Antenna systemInfo
- Publication number
- JP2001308738A JP2001308738A JP2000123475A JP2000123475A JP2001308738A JP 2001308738 A JP2001308738 A JP 2001308738A JP 2000123475 A JP2000123475 A JP 2000123475A JP 2000123475 A JP2000123475 A JP 2000123475A JP 2001308738 A JP2001308738 A JP 2001308738A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- built
- reception
- unit
- gain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、携帯時に内蔵のア
ンテナを介して通信を行う携帯型無線器を利用したアン
テナシステムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna system using a portable wireless device that performs communication via a built-in antenna when carrying.
【０００２】[0002]
【従来の技術】従来より、内蔵アンテナを介して通信を
行う携帯型無線器が提供されているが、この種の携帯型
無線器として、非携帯時に設置しておくための設置台を
備えているものが提供されている。2. Description of the Related Art Conventionally, portable radios for performing communication via a built-in antenna have been provided. As this kind of portable radio, an installation base for non-portable installation is provided. Is provided.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記従来の
携帯型無線器は、携帯するが故に内蔵アンテナが小型化
されており、内蔵アンテナの利得が低く、携帯時および
非携帯時にかかわらず所望の通信距離や通信品質の確保
が不十分であった。In the above-mentioned conventional portable radio device, the built-in antenna is downsized because it is carried, and the gain of the built-in antenna is low. Communication distance and communication quality were insufficiently secured.
【０００４】また、近距離通信で受信したときに、強電
界の無線信号（ＲＦ信号）が入力されるから、通信品質
が劣化してしまうという不具合があり、場合によっては
受信部の構成部品が破壊されてしまうことがあった。[0004] In addition, when a radio signal (RF signal) of a strong electric field is input when received by short-distance communication, there is a problem that the communication quality is degraded. Sometimes it was destroyed.
【０００５】本発明は上記事由に鑑みて為されたもので
あり、その目的は、通信品質を向上したアンテナシステ
ムを提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an antenna system with improved communication quality.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明は、上記
目的を達成するために、内蔵アンテナおよび該内蔵アン
テナを介して送受信を行う送受信手段を有する携帯型無
線器と、携帯型無線器を着脱自在に保持する設置台とを
備え、設置台は、携帯型無線器の内蔵アンテナよりも高
利得な高利得アンテナと、高利得アンテナに接続された
一次コイルとが設けられ、携帯型無線器は、上記設置台
に保持された状態において上記一次コイルに電磁結合す
る二次コイルと、二次コイルと内蔵アンテナとのいずれ
かを選択して送受信手段に接続する切換手段と、上記設
置台に保持されているときに二次コイルが送受信手段に
接続されるように切換手段を制御する制御手段とが設け
られてなることを特徴とするものであり、携帯型無線器
が設置台に保持された状態、つまり、携帯型無線器の非
携帯時には携帯型無線器の内蔵アンテナよりも高利得な
高利得アンテナを介して送受信が行われることになり、
非携帯時の通信品質が向上する。In order to achieve the above object, the present invention provides a portable radio having a built-in antenna and transmitting / receiving means for transmitting and receiving via the built-in antenna, and a portable radio. And a mounting base for detachably holding the portable radio. The mounting base is provided with a high-gain antenna having a higher gain than the built-in antenna of the portable radio, and a primary coil connected to the high-gain antenna. A secondary coil that is electromagnetically coupled to the primary coil while being held by the installation base, a switching unit that selects one of the secondary coil and the built-in antenna and connects to the transmission / reception means, And control means for controlling the switching means so that the secondary coil is connected to the transmission / reception means when the portable radio is held on the installation table. Sa State, i.e., will be transmitted and received is carried out through a high gain, high gain antennas than the built-in antenna of a portable radio device of a non-mobile when the mobile wireless device,
The communication quality when not carrying is improved.
【０００７】請求項２の発明は、内蔵アンテナおよび該
内蔵アンテナを介して送受信を行う送受信手段を有する
携帯型無線器と、携帯型無線器を着脱自在に保持する設
置台とを備え、設置台は、携帯型無線器の内蔵アンテナ
よりも高利得な高利得アンテナと、高利得アンテナに接
続された一次コイルとが設けられ、携帯型無線器は、上
記設置台に保持された状態において上記一次コイルに電
磁結合する二次コイルと、二次コイルと内蔵アンテナと
のいずれかを選択して送受信手段に接続する切換手段
と、上記両アンテナの受信信号レベルを比較して受信信
号レベルの大きなアンテナが選択されるように切換手段
を制御する制御手段とが設けられてなることを特徴とす
るものであり、携帯型無線器が設置台に保持された状
態、つまり、携帯型無線器の非携帯時にはより良好な受
信特性が得られるアンテナを介して送受信が行われるこ
とになり、非携帯時の通信品質が向上する。According to a second aspect of the present invention, there is provided a portable wireless device having a built-in antenna and a transmitting / receiving means for transmitting and receiving via the built-in antenna, and a mounting table for detachably holding the portable wireless device. Is provided with a high-gain antenna having a higher gain than the built-in antenna of the portable wireless device, and a primary coil connected to the high-gain antenna. A secondary coil that is electromagnetically coupled to the coil, a switching unit that selects one of the secondary coil and the built-in antenna and connects to the transmission / reception unit, and an antenna having a large reception signal level by comparing the reception signal levels of the two antennas And control means for controlling the switching means so that the portable radio device is selected. Will be transmitted and received is performed via an antenna better reception characteristics are obtained in the non-carrying time of the vessel, the communication quality of the non-carrying time is improved.
【０００８】請求項３の発明は、請求項１の発明におい
て、上記設置台は、複数の高利得アンテナを有し、各高
利得アンテナの受信信号レベルに基づいて良好な受信特
性が得られる高利得アンテナを選択して上記一次コイル
に接続するアンテナ切換手段が設けられているので、強
電界の無線信号が入力されることによる通信品質の劣化
および構成部品の破壊を防止することができる。According to a third aspect of the present invention, in the first aspect of the present invention, the installation table has a plurality of high gain antennas, and a high reception characteristic is obtained based on a reception signal level of each high gain antenna. Since the antenna switching means for selecting a gain antenna and connecting to the primary coil is provided, it is possible to prevent deterioration of communication quality and destruction of components due to input of a strong electric field radio signal.
【０００９】請求項４の発明は、請求項１の発明におい
て、上記携帯型無線器は、少なくとも上記制御手段へ給
電する充電式の二次電池と、上記二次コイルを含み共振
周波数を切替可能な共振回路部と、上記二次コイルと二
次電池との間に挿入されたスイッチ手段と、二次電池が
充電中か否かを判定する判定手段とを備え、上記設置台
は、上記一次コイルおよび上記二次コイルを通して二次
電池へ電力を供給する給電手段を備え、上記制御手段
は、上記判定手段の出力に基づいて二次電池が充電中で
ないときに上記スイッチ手段により上記二次コイルと二
次電池との間を遮断するとともに上記共振回路部の共振
周波数を電力供給用の共振周波数から送受信用の共振周
波数に切り替えるので、携帯型無線器が設置台に保持さ
れ二次電池の充電中でないときには設置台の高利得アン
テナを介して通信が行われることになって通信品質が向
上し、また、上記一次コイルおよび上記二次コイルを通
信用と電力供給用とに兼用することができるから、電力
供給用のコイルと送受信用のコイルとが別々に設ける場
合に比べて部品点数を削減できるとともに携帯型無線器
の小型化を図ることができる。According to a fourth aspect of the present invention, in the first aspect of the present invention, the portable wireless device includes a rechargeable secondary battery for supplying power to at least the control means and the secondary coil, and can switch a resonance frequency. A resonance circuit unit, a switch unit inserted between the secondary coil and the secondary battery, and a determination unit for determining whether or not the secondary battery is being charged. Power supply means for supplying power to a secondary battery through a coil and the secondary coil, wherein the control means controls the secondary coil by the switch means when the secondary battery is not charging based on the output of the determination means. And the secondary battery is cut off, and the resonance frequency of the resonance circuit is switched from the power supply resonance frequency to the transmission / reception resonance frequency, so that the portable wireless device is held on the installation base and the secondary battery is charged. During ~ When there is no communication, the communication is performed via the high gain antenna of the installation table, and the communication quality is improved, and the primary coil and the secondary coil can be used for both communication and power supply. The number of components can be reduced and the size of the portable wireless device can be reduced as compared with a case where a power supply coil and a transmission / reception coil are separately provided.
【００１０】請求項５の発明は、請求項４の発明におい
て、上記携帯型無線器は、上記設置台に保持された状態
で上記設置台に設けられたロック穴に進退自在なロック
爪と、ロック爪を移動させるロック機構部とを備え、上
記制御手段は、上記判定手段の出力に基づいて二次電池
が充電中でないときにはロック爪がロック穴に入るよう
にロック機構部を制御するので、携帯型無線器が設置台
に保持された状態において設置台の高利得アンテナを介
して通信が行われている途中で携帯型無線器が設置台か
ら取り外されたり振動や衝撃によって外れるのを防止で
き、通信が切断されるのを防止することができる。According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the portable wireless device is provided with a lock claw that can be advanced and retracted into a lock hole provided in the installation base while being held by the installation base; A lock mechanism for moving the lock claw, wherein the control means controls the lock mechanism so that the lock claw enters the lock hole when the secondary battery is not charging based on the output of the determination means. While the portable radio is being held on the stand, it is possible to prevent the portable radio from being detached from the stand or coming off due to vibration or impact while communicating via the high gain antenna of the stand. In addition, disconnection of communication can be prevented.
【００１１】[0011]
【発明の実施の形態】（実施形態１）本実施形態のアン
テナシステムは、図１に示すように、携帯型無線器１０
と、携帯型無線器１０を着脱自在に保持する設置台３０
とで構成される。DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) As shown in FIG.
And an installation table 30 for detachably holding the portable wireless device 10
It is composed of
【００１２】携帯型無線器１０は、内蔵の小型のアンテ
ナ（内蔵アンテナ）１１を有し、アンテナ１１を介して
それぞれ受信、送信を行う受信部１５、送信部１６が設
けられており、携帯時にはアンテナ１１を介して通信
（送受信）を行うようになっている。ここにおいて、受
信部１５と送信部１６とでアンテナ１１を介して送受信
を行う送受信手段を構成している。なお、アンテナ１１
としては、アンテナ利得が−２０ｄＢｉ程度の微小ルー
プアンテナを用いているが、微小ループアンテナに限定
されるものではなく、小型化が可能で携帯型無線器１０
に内蔵できるものであればよい。The portable wireless device 10 has a built-in small antenna (built-in antenna) 11, and a receiving unit 15 and a transmitting unit 16 for receiving and transmitting via the antenna 11, respectively. Communication (transmission / reception) is performed via the antenna 11. Here, the receiving unit 15 and the transmitting unit 16 constitute transmitting / receiving means for transmitting and receiving via the antenna 11. The antenna 11
Is a small loop antenna having an antenna gain of about −20 dBi. However, the present invention is not limited to the small loop antenna, and the portable wireless device 10 can be downsized.
What is necessary is just to be able to be built in.
【００１３】設置台３０には、携帯型無線器１０のアン
テナ１１よりも高利得なアンテナ（高利得アンテナ）３
１と、当該アンテナ３１に接続された後述の一次コイル
３２とが設けられている。なお、アンテナ３１として
は、例えばモノポールアンテナを用いればよい。An antenna (high-gain antenna) 3 having a higher gain than the antenna 11 of the portable wireless device 10 is provided on the installation table 30.
1 and a primary coil 32 described later connected to the antenna 31. The antenna 31 may be, for example, a monopole antenna.
【００１４】これに対して、携帯型無線器１０は、設置
台３０に保持された状態において上述の一次コイル３２
に電磁結合する二次コイル１２を備えており、二次コイ
ル１２とアンテナ１１とのいずれかを選択して上記送受
信手段に接続するための切換手段たるアンテナ切換器１
３と、上記送受信手段において受信部１５と送信部１６
とのいずれかを選択して送信、受信を切り換えるための
送受信切換器１４と、設置台３０に保持されているとき
に二次コイル１２が送受信手段に接続されるようにアン
テナ切換器１３を制御する制御部１７とを備えている。
ここに、制御部１７が制御手段を構成している。On the other hand, the portable radio device 10 holds the primary coil 32 while holding the
And an antenna switch 1 serving as switching means for selecting either the secondary coil 12 or the antenna 11 and connecting to the transmitting / receiving means.
3, the receiving unit 15 and the transmitting unit 16 in the transmitting / receiving unit
And a transmission / reception switch 14 for switching between transmission and reception, and an antenna switch 13 for connecting the secondary coil 12 to transmission / reception means when the secondary coil 12 is held by the installation base 30. And a control unit 17 that performs the control.
Here, the control unit 17 constitutes control means.
【００１５】制御部１７は、送信部１６へ送信制御信号
を与える機能とともに受信部１５で受信した受信信号に
対して適宜処理を施す機能を備えており、図示しない検
知手段から携帯型無線器１０が設置台３０に設置された
ことを示す検知信号が入力されると、アンテナ切換器１
３をアンテナ１１側から二次コイル１２側に切り換えさ
せ、二次コイル１２を設置台３０の一次コイル３２と電
磁結合させる。そして、制御部１７は、設置台３０のア
ンテナ３１を介して送信を行う場合には、送受信切換器
１４を送信部１６側に切り換えて送信部１６へ送信制御
信号を与え、また、設置台３０のアンテナ３２を介して
受信を行う場合には、送受信切換器１４を受信部１６側
に切り換えて受信部１６で受信した受信信号を受け付け
る。The control unit 17 has a function of providing a transmission control signal to the transmission unit 16 and a function of appropriately performing processing on the reception signal received by the reception unit 15. When a detection signal indicating that is installed on the installation base 30 is input, the antenna switch 1
3 is switched from the antenna 11 side to the secondary coil 12 side, and the secondary coil 12 is electromagnetically coupled to the primary coil 32 of the installation base 30. When performing transmission via the antenna 31 of the installation base 30, the control unit 17 switches the transmission / reception switch 14 to the transmission unit 16 side to provide a transmission control signal to the transmission unit 16, When the reception is performed via the antenna 32, the transmission / reception switch 14 is switched to the reception unit 16 to receive the reception signal received by the reception unit 16.
【００１６】しかして、本実施形態のアンテナシステム
では、携帯型無線器１０が設置台３０に保持された状
態、つまり、携帯型無線器１０の非携帯時には携帯型無
線器１０のアンテナ１１よりも高利得なアンテナ３１を
介して送受信が行われることになり、非携帯時の通信品
質が向上する。However, in the antenna system of the present embodiment, the portable wireless device 10 is held by the installation base 30, that is, when the portable wireless device 10 is not carried, the portable wireless device 10 is higher than the antenna 11 of the portable wireless device 10. Transmission and reception are performed via the high-gain antenna 31, and the communication quality when not carried is improved.
【００１７】（実施形態２）本実施形態のアンテナシス
テムの基本構成は、実施形態１と略同じであって、携帯
型無線器１０の構成が相違する。なお、設置台３０の構
成は実施形態１と同じなので図示を省略し、また、携帯
型無線器１０において実施形態１と同様の構成要素には
同一の符号を付して説明を省略する。(Embodiment 2) The basic configuration of the antenna system of this embodiment is substantially the same as that of Embodiment 1, and the configuration of the portable radio device 10 is different. Since the configuration of the installation base 30 is the same as that of the first embodiment, the illustration is omitted. In the portable wireless device 10, the same components as those of the first embodiment are denoted by the same reference numerals, and the description is omitted.
【００１８】本実施形態における携帯型無線器１０は、
図２に示すように、アンテナ（内蔵アンテナ）１１によ
る受信信号を検波する検波部１８ａと、図１の設置台３
０に設けられたアンテナ（高利得アンテナ）３２による
受信信号を二次コイル１２を介して検波する検波部１８
ｂと、両検波部１８ａ，１８ｂの各出力（受信信号レベ
ル）を比較して両検波部１８ａ，１８ｂのどちらの受信
信号レベルが大きいかを判定する検波レベル判定部１９
とを備えており、制御部１７は、検波レベル判定部１９
の出力に基づいて受信信号レベルが大きなアンテナが選
択されるようにアンテナ切換器１３を制御するようにな
っている。したがって、例えば検波部１８ｂの出力の方
が検波部１８ａの出力よりも大きい場合、制御部１７
は、アンテナ切換器１３を二次コイル１２側に切り換え
させるので、設置台３０のアンテナ３１を介して通信が
行われる。The portable wireless device 10 according to the present embodiment comprises:
As shown in FIG. 2, a detection unit 18a for detecting a signal received by an antenna (built-in antenna) 11 and a mounting table 3 shown in FIG.
A detection unit 18 that detects a signal received by an antenna (high-gain antenna) 32 provided through the secondary coil 12 through the secondary coil 12.
b and the respective outputs (received signal levels) of the two detectors 18a and 18b to detect which of the two detectors 18a and 18b has a higher received signal level.
The control unit 17 includes a detection level determination unit 19
The antenna switch 13 is controlled so that an antenna having a large received signal level is selected based on the output of the antenna switching unit. Therefore, for example, when the output of the detector 18b is larger than the output of the detector 18a, the controller 17
Switches the antenna switch 13 to the secondary coil 12 side, so that communication is performed via the antenna 31 of the installation base 30.
【００１９】なお、本実施形態では、アンテナ切換器１
３が切換手段を構成し、検波レベル判定部１９と制御部
１７とで、受信信号レベルの大きなアンテナが選択され
るように切換手段を制御する制御手段を構成している。In this embodiment, the antenna switch 1
Reference numeral 3 denotes a switching unit, and the detection level determination unit 19 and the control unit 17 constitute a control unit that controls the switching unit so that an antenna having a large received signal level is selected.
【００２０】しかして、本実施形態では、携帯型無線器
１０が設置台３０に保持された状態、つまり、携帯型無
線器１０の非携帯時には２つのアンテナ１１，３１のう
ちより良好な受信特性が得られるアンテナを介して送受
信が行われることになり、非携帯時の通信品質が向上す
る。In the present embodiment, the portable radio device 10 is held on the installation base 30, that is, when the portable radio device 10 is not carried, the better reception characteristics of the two antennas 11 and 31 are provided. The transmission and reception are performed via the antenna that can obtain the communication quality, and the communication quality when not carried is improved.
【００２１】（実施形態３）本実施形態のアンテナシス
テムの基本構成は、実施形態１と略同じであって、設置
台３０の構成が相違する。なお、携帯型無線器１０の構
成は実施形態１と同じなので図示を省略し、また、設置
台３０において実施形態１と同様の構成要素には同一の
符号を付して説明を省略する。(Embodiment 3) The basic configuration of an antenna system according to the present embodiment is substantially the same as that of Embodiment 1, and the configuration of the installation table 30 is different. Since the configuration of the portable wireless device 10 is the same as that of the first embodiment, it is not shown in the drawings, and the same components of the installation table 30 as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
【００２２】本実施形態における設置台３０は、図３に
示すように、複数の高利得なアンテナ（高利得アンテ
ナ）３１1〜３１nを有し、各アンテナ３１1〜３１nの受
信信号をそれぞれ検波する複数の検波部３２1〜３２
nと、各検波部３２1〜３２nの出力信号（受信信号レベ
ル）を比較し最も良好な受信特性が得られるアンテナを
判定する検波レベル判定部３３と、検波レベル判定部３
３の出力に基づいてアンテナ３１1〜３１nのうち最も良
好な受信特性が得られるアンテナを一次コイル３２に接
続するアンテナ切替器３４とを備えている。ここにおい
て、最も良好な受信特性とは、受信特性が劣化する受信
飽和レベルを超えない信号強度で且つ受信信号レベルが
最も大きい特性のことを意味している。なお、上記各ア
ンテナ３１1〜３１nのアンテナ利得はそれぞれ異ならせ
てある。また、本実施形態では、検波部３２1〜３２nと
検波レベル判定部３３とアンテナ切替器３４とで、アン
テナ切換手段を構成している。As shown in FIG. 3, the installation base 30 in this embodiment has a plurality of high-gain antennas (high-gain antennas) 31 1 to 31 n , and receives signals from the antennas 31 1 to 31 n. A plurality of detectors 32 1 to 32 for detecting the respective waves
n and a detection level determination unit 33 that compares output signals (reception signal levels) of the detection units 32 1 to 32 n to determine an antenna that provides the best reception characteristics, and a detection level determination unit 3
And an antenna switch 34 for connecting the antenna having the best reception characteristic among the antennas 31 1 to 31 n to the primary coil 32 based on the output of the antenna 3. Here, the best reception characteristic means a characteristic having a signal intensity not exceeding a reception saturation level at which the reception characteristic is degraded and having the highest reception signal level. The antenna gains of the antennas 31 1 to 31 n are different from each other. Further, in the present embodiment, in the detection unit 32 1 to 32 n and demodulating level determination unit 33 and the antenna switch 34 constitute an antenna switching means.
【００２３】しかして、本実施形態のアンテナシステム
では、設置台３０に設けられたアンテナ３１1〜３１nの
受信信号レベルに基づいて良好な受信特性が得られるア
ンテナを選択して一次コイル３２に接続するアンテナ切
換手段が設けられているので、強電界の無線信号が入力
されることによる通信品質の劣化および構成部品の破壊
を防止することができる。Thus, in the antenna system of the present embodiment, an antenna having good reception characteristics is selected based on the reception signal levels of the antennas 31 1 to 31 n provided on the installation table 30 and the primary coil 32 is selected. Since the antenna switching means for connection is provided, it is possible to prevent deterioration of communication quality and destruction of components due to input of a radio signal of a strong electric field.
【００２４】（実施形態４）本実施形態のアンテナシス
テムは、図４に示すように、二次電池ＥBを内部回路の
動作用電源として備える携帯型無線器１０と、携帯型無
線器１０を着脱自在に保持し且つ上記二次電池ＥBを充
電するための後述の給電手段を備える設置台３０とで構
成される。[0024] (Embodiment 4) The antenna system of the present embodiment, as shown in FIG. 4, the portable wireless device 10 comprises a secondary battery E B as an operating power supply of the internal circuit, the portable radio 10 detachably held by and composed of the installation base 30 comprising feeding means described later for charging the secondary battery E B.
【００２５】携帯型無線器１０は、内蔵の小型のアンテ
ナ（内蔵アンテナ）１１を有し、アンテナ１１を介して
それぞれ受信、送信を行う受信部１５、送信部１６が設
けられており、携帯時にはアンテナ１１を介して通信
（送受信）を行うようになっている。ここにおいて、受
信部１５と送信部１６とでアンテナ１１を介して送受信
を行う送受信手段を構成している。なお、アンテナ１１
としては、アンテナ利得が−２０ｄＢｉ程度の微小ルー
プアンテナを用いているが、微小ループアンテナに限定
されるものではなく、小型化が可能で携帯型無線器１０
に内蔵できるものであればよい。The portable radio device 10 has a built-in small antenna (built-in antenna) 11, and is provided with a receiving unit 15 and a transmitting unit 16 for receiving and transmitting via the antenna 11, respectively. Communication (transmission / reception) is performed via the antenna 11. Here, the receiving unit 15 and the transmitting unit 16 constitute transmitting / receiving means for transmitting and receiving via the antenna 11. The antenna 11
Is a small loop antenna having an antenna gain of about −20 dBi. However, the present invention is not limited to the small loop antenna, and the portable wireless device 10 can be downsized.
What is necessary is just to be able to be built in.
【００２６】設置台３０には、携帯型無線器１０のアン
テナ１１よりも高利得なアンテナ（高利得アンテナ）３
１と、当該アンテナ３１に接続された後述の一次コイル
３２と、商用電源よりなる交流電源ＡＣを整流平滑する
整流平滑部３５と、一次コイル３２とコンデンサＣ１と
からなる共振回路３６とが設けられている。なお、アン
テナ３１としては、例えばモノポールアンテナを用いれ
ばよい。An antenna (high-gain antenna) 3 having a higher gain than the antenna 11 of the portable wireless device 10 is provided on the installation table 30.
1, a primary coil 32 to be described later connected to the antenna 31, a rectifying and smoothing unit 35 for rectifying and smoothing an AC power supply AC composed of a commercial power supply, and a resonance circuit 36 including the primary coil 32 and a capacitor C1. ing. The antenna 31 may be, for example, a monopole antenna.
【００２７】これに対して、携帯型無線器１０は、設置
台３０に保持された状態において上述の一次コイル３２
に電磁結合する二次コイル１２を備えており、二次コイ
ル１２とアンテナ１１とのいずれかを選択して上記送受
信手段に接続するための切換手段たるアンテナ切換器１
３と、上記送受信手段において受信部１５と送信部１６
とのいずれかを選択して送信、受信を切り換えるための
送受信切換器１４と、アンテナ切換器１３および送受信
切換器１４を制御する制御部１７とを備えている。ま
た、制御部１７は、送信部１６へ送信制御信号を与える
機能とともに受信部１５で受信した受信信号に対して適
宜処理を施す機能を備えている。On the other hand, when the portable radio device 10 is held by the
And an antenna switch 1 serving as switching means for selecting either the secondary coil 12 or the antenna 11 and connecting to the transmitting / receiving means.
3, the receiving unit 15 and the transmitting unit 16 in the transmitting / receiving unit
A transmission / reception switch 14 for selecting any one of the above and switching between transmission and reception, and a control unit 17 for controlling the antenna switch 13 and the transmission / reception switch 14. Further, the control unit 17 has a function of giving a transmission control signal to the transmission unit 16 and a function of appropriately performing processing on the reception signal received by the reception unit 15.
【００２８】携帯型無線器１０は、少なくとも制御部１
７などの内部回路へ給電する充電式の二次電池ＥBと、
二次コイル１２を含み共振周波数を切替可能な共振回路
部２２と、二次コイル１２と二次電池ＥBとの間に挿入
されたスイッチ手段たる充電切換部２０と、充電切換部
２０と二次電池ＥBとの間に挿入されたダイオードＤ
と、二次電池ＥBが充電中か否かを判定する判定手段た
る充電検知部２３とを備えている。ここにおいて、共振
回路部２２は、二次コイル１２と、二次コイル１２に並
列接続されたコンデンサＣ２とを備え、さらに、コンデ
ンサＣ２の両端にコンデンサＣ３をスイッチ要素２１を
介して接続してある。共振回路部２２のスイッチ要素２
１は、制御部１７によってオンオフ制御されるようにな
っており、スイッチ要素２１のオンオフによって共振周
波数が変化する。なお、本実施形態では、制御部１７が
制御手段を構成している。The portable wireless device 10 includes at least the control unit 1.
The secondary battery E B rechargeable to supply power to an internal circuit such as 7,
A switchable resonant circuit 22 a resonant frequency comprises a secondary coil 12, a switching means serving charge switching unit 20 inserted between the secondary coil 12 and the secondary battery E B, a charge switching unit 20 two inserted diode D between the next battery E B
When, the secondary battery E B and a determining unit serving as charging detecting unit 23 whether charging. Here, the resonance circuit section 22 includes the secondary coil 12 and a capacitor C2 connected in parallel to the secondary coil 12, and furthermore, a capacitor C3 is connected to both ends of the capacitor C2 via the switch element 21. . Switch element 2 of resonance circuit section 22
1 is controlled to be turned on and off by the control unit 17, and the resonance frequency changes when the switch element 21 is turned on and off. In the present embodiment, the control unit 17 constitutes a control unit.
【００２９】これに対して、設置台３０は、上述の整流
平滑部３５により交流電源ＡＣを整流平滑し、共振回路
３６により高周波の発振を行い一次コイル３２から二次
コイル１２へ電力を伝達できるようになっている。ここ
に、整流平滑部３５と共振回路３６とで給電手段を構成
している。On the other hand, the mounting table 30 rectifies and smoothes the AC power supply AC by the above-described rectifying and smoothing unit 35, oscillates at a high frequency by the resonance circuit 36, and can transmit power from the primary coil 32 to the secondary coil 12. It has become. Here, the rectifying / smoothing unit 35 and the resonance circuit 36 constitute a feeding unit.
【００３０】制御部１７は、充電検知部２３の出力に基
づいて二次電池ＥBが充電中でないときに充電切換部２
０をオフさせて二次コイル１２と二次電池ＥBとの間を
遮断するとともに共振回路部２２のスイッチ要素２１を
オフさせて共振周波数を電力供給用の共振周波数から送
受信用の共振周波数に切り替え、アンテナ切換器１３を
アンテナ１１側から二次コイル１２側に切り換えさせ、
二次コイル１２を設置台３０の一次コイル３２と電磁結
合させる。そして、制御部１７は、設置台３０のアンテ
ナ３１を介して送信を行う場合には、送受信切換器１４
を送信部１６側に切り換えて送信部１６へ送信制御信号
を与え、また、設置台３０のアンテナ３２を介して受信
を行う場合には、送受信切換器１４を受信部１６側に切
り換えて受信部１６で受信した受信信号を受け付ける。The control unit 17, charge switching unit 2 when it is not being charged secondary battery E B based on the output of the charge detection unit 23
0 was off to the resonant frequency for transmission and reception from the resonance frequency of the power supply the resonance frequency by turning off the switch element 21 of the resonance circuit 22 together with the blocking between the secondary coil 12 and the secondary battery E B Switching, the antenna switch 13 is switched from the antenna 11 side to the secondary coil 12 side,
The secondary coil 12 is electromagnetically coupled to the primary coil 32 of the mounting table 30. Then, when performing transmission via the antenna 31 of the installation base 30, the control unit 17
Is switched to the transmission unit 16 side to provide a transmission control signal to the transmission unit 16, and when reception is performed via the antenna 32 of the installation base 30, the transmission / reception switch 14 is switched to the reception unit 16 side and the reception unit The received signal received at 16 is received.
【００３１】しかして、本実施形態のアンテナシステム
では、携帯型無線器１０が設置台３０に保持され二次電
池ＥBの充電中でないときには設置台３０のアンテナ３
１を介して通信が行われることになって通信品質が向上
し、また、一次コイル３２および二次コイル１２を通信
用と電力供給用とに兼用することができるから、電力供
給用のコイルと送受信用のコイルとが別々に設ける場合
に比べて部品点数を削減できるとともに携帯型無線器１
０の小型化を図ることができる。[0031] Thus, the antenna system of the present embodiment, the portable radio device 10 of the installation base 30 when not in charge of the secondary battery E B is held in the installation base 30 Antenna 3
1, communication quality is improved, and the primary coil 32 and the secondary coil 12 can be used for both communication and power supply. The number of components can be reduced as compared with a case where a coil for transmission and reception is separately provided, and the portable radio 1
0 can be reduced in size.
【００３２】（実施形態５）本実施形態のアンテナシス
テムの基本構成は実施形態４と略同じであって、図４に
示した構成に加えて、図５（ａ），（ｂ）に示すよう
に、携帯型無線器１０の器体１０ａが、設置台３０の器
体３０ａにおける保持部３０ｂに保持された状態で設置
台３０に設けられたロック穴７２に進退自在なロック爪
７１と、ロック爪７１を移動させるロック機構部７０と
を備え、制御部１７が、上記判定手段たる充電検知部２
３（図４参照）の出力に基づいて二次電池ＥBが充電中
でないときにはロック爪７１が図５（ｂ）のようにロッ
ク穴７２に入るようにロック機構部７０を制御する点に
特徴がある。(Embodiment 5) The basic configuration of an antenna system according to the present embodiment is substantially the same as that of Embodiment 4, and in addition to the configuration shown in FIG. 4, as shown in FIGS. 5 (a) and 5 (b). In addition, a lock claw 71 which can move forward and backward in a lock hole 72 provided in the installation base 30 in a state where the body 10a of the portable wireless device 10 is held by the holding portion 30b of the housing 30a of the installation base 30, A lock mechanism 70 for moving the claw 71, and the controller 17 controls the charging detector 2 as the determination means.
3 characterized in that to control the locking mechanism 70 as the lock pawl 71 when the secondary battery E B based on the output (see FIG. 4) not being charged into the locking hole 72 as shown in FIG. 5 (b) There is.
【００３３】しかして、本実施形態のアンテナシステム
では、携帯型無線器１０が設置台３０に保持された状態
で設置台３０のアンテナ３１を介して通信が行われてい
る途中で携帯型無線器１０が設置台３０から取り外され
たり振動や衝撃によって外れるのを防止でき、通信が切
断されるのを防止することができる。In the antenna system according to the present embodiment, the portable radio 10 is held by the installation base 30 while the communication is being performed via the antenna 31 of the installation base 30. 10 can be prevented from being detached from the installation table 30 or coming off due to vibration or impact, and disconnection of communication can be prevented.
【００３４】[0034]
【発明の効果】請求項１の発明は、内蔵アンテナおよび
該内蔵アンテナを介して送受信を行う送受信手段を有す
る携帯型無線器と、携帯型無線器を着脱自在に保持する
設置台とを備え、設置台は、携帯型無線器の内蔵アンテ
ナよりも高利得な高利得アンテナと、高利得アンテナに
接続された一次コイルとが設けられ、携帯型無線器は、
上記設置台に保持された状態において上記一次コイルに
電磁結合する二次コイルと、二次コイルと内蔵アンテナ
とのいずれかを選択して送受信手段に接続する切換手段
と、上記設置台に保持されているときに二次コイルが送
受信手段に接続されるように切換手段を制御する制御手
段とが設けられてなるものであり、携帯型無線器が設置
台に保持された状態、つまり、携帯型無線器の非携帯時
には携帯型無線器の内蔵アンテナよりも高利得な高利得
アンテナを介して送受信が行われることになり、非携帯
時の通信品質が向上するという効果がある。According to the first aspect of the present invention, there is provided a portable wireless device having a built-in antenna and a transmitting / receiving means for performing transmission / reception via the built-in antenna, and a mounting table for detachably holding the portable wireless device, The installation base is provided with a high-gain antenna having a higher gain than the built-in antenna of the portable radio, and a primary coil connected to the high-gain antenna.
A secondary coil that is electromagnetically coupled to the primary coil in a state where the secondary coil and the built-in antenna are held, and a switching unit that selects one of the secondary coil and the built-in antenna and connects to the transmission / reception unit; And control means for controlling the switching means so that the secondary coil is connected to the transmission / reception means when the portable radio is held on the installation base, that is, When the wireless device is not carried, transmission and reception are performed via a high-gain antenna having a higher gain than the built-in antenna of the portable wireless device, which has the effect of improving communication quality when not carried.
【００３５】請求項２の発明は、内蔵アンテナおよび該
内蔵アンテナを介して送受信を行う送受信手段を有する
携帯型無線器と、携帯型無線器を着脱自在に保持する設
置台とを備え、設置台は、携帯型無線器の内蔵アンテナ
よりも高利得な高利得アンテナと、高利得アンテナに接
続された一次コイルとが設けられ、携帯型無線器は、上
記設置台に保持された状態において上記一次コイルに電
磁結合する二次コイルと、二次コイルと内蔵アンテナと
のいずれかを選択して送受信手段に接続する切換手段
と、上記両アンテナの受信信号レベルを比較して受信信
号レベルの大きなアンテナが選択されるように切換手段
を制御する制御手段とが設けられてなるものであり、携
帯型無線器が設置台に保持された状態、つまり、携帯型
無線器の非携帯時にはより良好な受信特性が得られるア
ンテナを介して送受信が行われることになり、非携帯時
の通信品質が向上するという効果がある。According to a second aspect of the present invention, there is provided a portable radio having a built-in antenna and a transmitting / receiving means for transmitting and receiving data via the built-in antenna, and a mounting table for detachably holding the portable radio. Is provided with a high-gain antenna having a higher gain than the built-in antenna of the portable wireless device, and a primary coil connected to the high-gain antenna. A secondary coil that is electromagnetically coupled to the coil, a switching unit that selects one of the secondary coil and the built-in antenna and connects to the transmission / reception unit, and an antenna having a large reception signal level by comparing the reception signal levels of the two antennas And control means for controlling the switching means so that is selected, the state where the portable radio is held on the installation base, that is, when the portable radio is not carried Will be transmitted and received is performed via an antenna better reception characteristics can be obtained, there is an effect that the communication quality of the non-carrying time is improved.
【００３６】請求項３の発明は、請求項１の発明におい
て、上記設置台は、複数の高利得アンテナを有し、各高
利得アンテナの受信信号レベルに基づいて良好な受信特
性が得られる高利得アンテナを選択して上記一次コイル
に接続するアンテナ切換手段が設けられているので、強
電界の無線信号が入力されることによる通信品質の劣化
および構成部品の破壊を防止することができるという効
果がある。According to a third aspect of the present invention, in the first aspect of the present invention, the installation table has a plurality of high-gain antennas, and a high-gain antenna capable of obtaining good reception characteristics based on a reception signal level of each high-gain antenna. Since the antenna switching means for selecting a gain antenna and connecting to the primary coil is provided, it is possible to prevent deterioration of communication quality and destruction of components due to input of a radio signal of a strong electric field. There is.
【００３７】請求項４の発明は、請求項１の発明におい
て、上記携帯型無線器は、少なくとも上記制御手段へ給
電する充電式の二次電池と、上記二次コイルを含み共振
周波数を切替可能な共振回路部と、上記二次コイルと二
次電池との間に挿入されたスイッチ手段と、二次電池が
充電中か否かを判定する判定手段とを備え、上記設置台
は、上記一次コイルおよび上記二次コイルを通して二次
電池へ電力を供給する給電手段を備え、上記制御手段
は、上記判定手段の出力に基づいて二次電池が充電中で
ないときに上記スイッチ手段により上記二次コイルと二
次電池との間を遮断するとともに上記共振回路部の共振
周波数を電力供給用の共振周波数から送受信用の共振周
波数に切り替えるので、携帯型無線器が設置台に保持さ
れ二次電池の充電中でないときには設置台の高利得アン
テナを介して通信が行われることになって通信品質が向
上し、また、上記一次コイルおよび上記二次コイルを通
信用と電力供給用とに兼用することができるから、電力
供給用のコイルと送受信用のコイルとが別々に設ける場
合に比べて部品点数を削減できるとともに携帯型無線器
の小型化を図ることができるという効果がある。According to a fourth aspect of the present invention, in the first aspect of the present invention, the portable wireless device includes a rechargeable secondary battery for supplying power to at least the control means and the secondary coil, and can switch a resonance frequency. A resonance circuit unit, a switch unit inserted between the secondary coil and the secondary battery, and a determination unit for determining whether or not the secondary battery is being charged. Power supply means for supplying power to a secondary battery through a coil and the secondary coil, wherein the control means controls the secondary coil by the switch means when the secondary battery is not charging based on the output of the determination means. And the secondary battery is cut off, and the resonance frequency of the resonance circuit is switched from the power supply resonance frequency to the transmission / reception resonance frequency, so that the portable wireless device is held on the installation base and the secondary battery is charged. During ~ When there is no communication, the communication is performed via the high gain antenna of the installation table, so that the communication quality is improved, and the primary coil and the secondary coil can be used for both communication and power supply. In addition, the number of components can be reduced and the size of the portable wireless device can be reduced as compared with the case where the power supply coil and the transmission / reception coil are separately provided.
【００３８】請求項５の発明は、請求項４の発明におい
て、上記携帯型無線器は、上記設置台に保持された状態
で上記設置台に設けられたロック穴に進退自在なロック
爪と、ロック爪を移動させるロック機構部とを備え、上
記制御手段は、上記判定手段の出力に基づいて二次電池
が充電中でないときにはロック爪がロック穴に入るよう
にロック機構部を制御するので、携帯型無線器が設置台
に保持された状態において設置台の高利得アンテナを介
して通信が行われている途中で携帯型無線器が設置台か
ら取り外されたり振動や衝撃によって外れるのを防止で
き、通信が切断されるのを防止することができるという
効果がある。According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the portable wireless device is provided with a lock claw which can be advanced and retracted into a lock hole provided in the installation table while being held by the installation table; A lock mechanism for moving the lock claw, wherein the control means controls the lock mechanism so that the lock claw enters the lock hole when the secondary battery is not charging based on the output of the determination means. While the portable radio is being held on the stand, it is possible to prevent the portable radio from being detached from the stand or coming off due to vibration or impact while communicating via the high gain antenna of the stand. This has the effect of preventing communication from being disconnected.
【図１】実施形態１を示す回路ブロック図である。FIG. 1 is a circuit block diagram showing a first embodiment.
【図２】実施形態２における携帯型無線器の回路ブロッ
ク図である。FIG. 2 is a circuit block diagram of a portable wireless device according to a second embodiment.
【図３】実施形態３における設置台の回路ブロック図で
ある。FIG. 3 is a circuit block diagram of an installation base according to a third embodiment.
【図４】実施形態４を示す回路ブロック図である。FIG. 4 is a circuit block diagram showing a fourth embodiment.
【図５】実施形態５の説明図である。FIG. 5 is an explanatory diagram of a fifth embodiment.
１０ 携帯型無線器 １１ アンテナ １２ 二次コイル １３ アンテナ切換器 １４ 送受信切換器 １５ 受信部 １６ 送信部 １７ 制御部 ３０ 設置台 ３１ アンテナ ３２ 一次コイル DESCRIPTION OF SYMBOLS 10 Portable radio | wireless device 11 Antenna 12 Secondary coil 13 Antenna switching device 14 Transmission / reception switching device 15 Receiving part 16 Transmitting part 17 Control part 30 Installation stand 31 Antenna 32 Primary coil
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｂ 7/08 Ｈ０４Ｂ 7/08 Ｃ ５Ｋ０６７ Ｈ０４Ｑ 7/32 Ｈ０４Ｍ 1/725 Ｈ０４Ｍ 1/725 Ｈ０４Ｂ 7/26 Ｖ (72)発明者 鍋嶋 秀生 大阪府門真市大字門真1048番地松下電工株 式会社内 (72)発明者 三澤 篤志 大阪府門真市大字門真1048番地松下電工株 式会社内 Ｆターム(参考） 5J021 AA02 AA03 AA04 AA05 AA12 AB02 CA06 DB04 FA17 FA20 FA21 FA23 FA25 FA26 FA31 FA32 GA08 HA05 HA10 5J047 AA04 AB07 AB10 FA09 FC02 FC04 FD01 5K011 DA02 JA01 KA13 5K027 AA06 AA11 BB04 5K059 CC03 DD02 DD07 DD27 5K067 AA23 BB04 EE02 EE12 KK01 KK17 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H04B 7/08 H04B 7/08 C 5K067 H04Q 7/32 H04M 1/725 H04M 1/725 H04B 7/26 V (72) Inventor Hideo Nabeshima 1048 Kadoma Kadoma, Kadoma-shi, Osaka Pref. Matsushita Electric Works Co., Ltd. AA04 AA05 AA12 AB02 CA06 DB04 FA17 FA20 FA21 FA23 FA25 FA26 FA31 FA32 GA08 HA05 HA10 5J047 AA04 AB07 AB10 FA09 FC02 FC04 FD01 5K011 DA02 JA01 KA13 5K027 AA06 AA11 BB04 5K059 CC03 DD02 DD07 DD02 BB07
Claims (5)
して送受信を行う送受信手段を有する携帯型無線器と、
携帯型無線器を着脱自在に保持する設置台とを備え、設
置台は、携帯型無線器の内蔵アンテナよりも高利得な高
利得アンテナと、高利得アンテナに接続された一次コイ
ルとが設けられ、携帯型無線器は、上記設置台に保持さ
れた状態において上記一次コイルに電磁結合する二次コ
イルと、二次コイルと内蔵アンテナとのいずれかを選択
して送受信手段に接続する切換手段と、上記設置台に保
持されているときに二次コイルが送受信手段に接続され
るように切換手段を制御する制御手段とが設けられてな
ることを特徴とするアンテナシステム。1. A portable wireless device having a built-in antenna and transmitting / receiving means for transmitting / receiving via the built-in antenna,
An installation base for detachably holding the portable radio is provided, and the installation base is provided with a high gain antenna having a higher gain than the built-in antenna of the portable radio, and a primary coil connected to the high gain antenna. A portable wireless device, a secondary coil electromagnetically coupled to the primary coil in a state held by the installation table, and a switching unit for selecting any one of the secondary coil and the built-in antenna and connecting to the transmitting / receiving unit. And a control means for controlling the switching means so that the secondary coil is connected to the transmission / reception means when held on the installation table.
して送受信を行う送受信手段を有する携帯型無線器と、
携帯型無線器を着脱自在に保持する設置台とを備え、設
置台は、携帯型無線器の内蔵アンテナよりも高利得な高
利得アンテナと、高利得アンテナに接続された一次コイ
ルとが設けられ、携帯型無線器は、上記設置台に保持さ
れた状態において上記一次コイルに電磁結合する二次コ
イルと、二次コイルと内蔵アンテナとのいずれかを選択
して送受信手段に接続する切換手段と、上記両アンテナ
の受信信号レベルを比較して受信信号レベルの大きなア
ンテナが選択されるように切換手段を制御する制御手段
とが設けられてなることを特徴とするアンテナシステ
ム。2. A portable wireless device having a built-in antenna and transmitting / receiving means for transmitting / receiving via the built-in antenna,
An installation base for detachably holding the portable radio is provided, and the installation base is provided with a high gain antenna having a higher gain than the built-in antenna of the portable radio, and a primary coil connected to the high gain antenna. A portable wireless device, a secondary coil electromagnetically coupled to the primary coil in a state held by the installation table, and a switching unit for selecting any one of the secondary coil and the built-in antenna and connecting to the transmitting / receiving unit. Control means for controlling the switching means so as to compare the reception signal levels of the two antennas and select an antenna having a higher reception signal level.
有し、各高利得アンテナの受信信号レベルに基づいて良
好な受信特性が得られる高利得アンテナを選択して上記
一次コイルに接続するアンテナ切換手段が設けられてな
ることを特徴とする請求項１記載のアンテナシステム。3. The installation table has a plurality of high-gain antennas, selects a high-gain antenna that provides good reception characteristics based on a reception signal level of each high-gain antenna, and connects the selected high-gain antenna to the primary coil. The antenna system according to claim 1, further comprising an antenna switching unit.
御手段へ給電する充電式の二次電池と、上記二次コイル
を含み共振周波数を切替可能な共振回路部と、上記二次
コイルと二次電池との間に挿入されたスイッチ手段と、
二次電池が充電中か否かを判定する判定手段とを備え、
上記設置台は、上記一次コイルおよび上記二次コイルを
通して二次電池へ電力を供給する給電手段を備え、上記
制御手段は、上記判定手段の出力に基づいて二次電池が
充電中でないときに上記スイッチ手段により上記二次コ
イルと二次電池との間を遮断するとともに上記共振回路
部の共振周波数を電力供給用の共振周波数から送受信用
の共振周波数に切り替えることを特徴とする請求項１記
載のアンテナシステム。4. The portable wireless device includes: a rechargeable secondary battery that supplies power to at least the control unit; a resonance circuit unit including the secondary coil and capable of switching a resonance frequency; Switch means inserted between the next battery,
Determining means for determining whether the secondary battery is being charged,
The installation table includes a power supply unit that supplies power to a secondary battery through the primary coil and the secondary coil, and the control unit performs the control when the secondary battery is not charging based on an output of the determination unit. 2. The switching device according to claim 1, wherein the switching means cuts off the connection between the secondary coil and the secondary battery and switches the resonance frequency of the resonance circuit from the power supply resonance frequency to the transmission / reception resonance frequency. Antenna system.
された状態で上記設置台に設けられたロック穴に進退自
在なロック爪と、ロック爪を移動させるロック機構部と
を備え、上記制御手段は、上記判定手段の出力に基づい
て二次電池が充電中でないときにはロック爪がロック穴
に入るようにロック機構部を制御することを特徴とする
請求項４記載のアンテナシステム。5. The portable wireless device includes a lock claw that can be moved back and forth into a lock hole provided in the installation table while being held by the installation table, and a lock mechanism that moves the lock claw. The antenna system according to claim 4, wherein the control means controls the lock mechanism based on an output of the determination means so that the lock claw enters the lock hole when the secondary battery is not charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000123475A JP2001308738A (en) | 2000-04-25 | 2000-04-25 | Antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000123475A JP2001308738A (en) | 2000-04-25 | 2000-04-25 | Antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001308738A true JP2001308738A (en) | 2001-11-02 |
Family
ID=18633772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000123475A Withdrawn JP2001308738A (en) | 2000-04-25 | 2000-04-25 | Antenna system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001308738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010135980A (en) * | 2008-12-03 | 2010-06-17 | Casio Computer Co Ltd | Antenna device, reception device, and radio wave timepiece |
| JP2011071944A (en) * | 2009-09-28 | 2011-04-07 | Kyocera Corp | Portable electronic device |
-
2000
- 2000-04-25 JP JP2000123475A patent/JP2001308738A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010135980A (en) * | 2008-12-03 | 2010-06-17 | Casio Computer Co Ltd | Antenna device, reception device, and radio wave timepiece |
| JP4645730B2 (en) * | 2008-12-03 | 2011-03-09 | カシオ計算機株式会社 | Antenna device, receiving device and radio clock |
| JP2011071944A (en) * | 2009-09-28 | 2011-04-07 | Kyocera Corp | Portable electronic device |
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| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
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